Merge commit 'dec0d4ec4153bf9fc2b78ae6c2df45b6ea8dde7a' as 'external/sdl/SDL'

external/sdl/SDL/src/render/SDL_d3dmath.c

@@ -0,0 +1,132 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if (defined(SDL_VIDEO_RENDER_D3D) || defined(SDL_VIDEO_RENDER_D3D11) || defined(SDL_VIDEO_RENDER_D3D12)) && !defined(SDL_RENDER_DISABLED)
+
+#include "SDL_d3dmath.h"
+
+/* Direct3D matrix math functions */
+
+Float4X4 MatrixIdentity()
+{
+    Float4X4 m;
+    SDL_zero(m);
+    m.v._11 = 1.0f;
+    m.v._22 = 1.0f;
+    m.v._33 = 1.0f;
+    m.v._44 = 1.0f;
+    return m;
+}
+
+Float4X4 MatrixMultiply(Float4X4 M1, Float4X4 M2)
+{
+    Float4X4 m;
+    m.v._11 = M1.v._11 * M2.v._11 + M1.v._12 * M2.v._21 + M1.v._13 * M2.v._31 + M1.v._14 * M2.v._41;
+    m.v._12 = M1.v._11 * M2.v._12 + M1.v._12 * M2.v._22 + M1.v._13 * M2.v._32 + M1.v._14 * M2.v._42;
+    m.v._13 = M1.v._11 * M2.v._13 + M1.v._12 * M2.v._23 + M1.v._13 * M2.v._33 + M1.v._14 * M2.v._43;
+    m.v._14 = M1.v._11 * M2.v._14 + M1.v._12 * M2.v._24 + M1.v._13 * M2.v._34 + M1.v._14 * M2.v._44;
+    m.v._21 = M1.v._21 * M2.v._11 + M1.v._22 * M2.v._21 + M1.v._23 * M2.v._31 + M1.v._24 * M2.v._41;
+    m.v._22 = M1.v._21 * M2.v._12 + M1.v._22 * M2.v._22 + M1.v._23 * M2.v._32 + M1.v._24 * M2.v._42;
+    m.v._23 = M1.v._21 * M2.v._13 + M1.v._22 * M2.v._23 + M1.v._23 * M2.v._33 + M1.v._24 * M2.v._43;
+    m.v._24 = M1.v._21 * M2.v._14 + M1.v._22 * M2.v._24 + M1.v._23 * M2.v._34 + M1.v._24 * M2.v._44;
+    m.v._31 = M1.v._31 * M2.v._11 + M1.v._32 * M2.v._21 + M1.v._33 * M2.v._31 + M1.v._34 * M2.v._41;
+    m.v._32 = M1.v._31 * M2.v._12 + M1.v._32 * M2.v._22 + M1.v._33 * M2.v._32 + M1.v._34 * M2.v._42;
+    m.v._33 = M1.v._31 * M2.v._13 + M1.v._32 * M2.v._23 + M1.v._33 * M2.v._33 + M1.v._34 * M2.v._43;
+    m.v._34 = M1.v._31 * M2.v._14 + M1.v._32 * M2.v._24 + M1.v._33 * M2.v._34 + M1.v._34 * M2.v._44;
+    m.v._41 = M1.v._41 * M2.v._11 + M1.v._42 * M2.v._21 + M1.v._43 * M2.v._31 + M1.v._44 * M2.v._41;
+    m.v._42 = M1.v._41 * M2.v._12 + M1.v._42 * M2.v._22 + M1.v._43 * M2.v._32 + M1.v._44 * M2.v._42;
+    m.v._43 = M1.v._41 * M2.v._13 + M1.v._42 * M2.v._23 + M1.v._43 * M2.v._33 + M1.v._44 * M2.v._43;
+    m.v._44 = M1.v._41 * M2.v._14 + M1.v._42 * M2.v._24 + M1.v._43 * M2.v._34 + M1.v._44 * M2.v._44;
+    return m;
+}
+
+Float4X4 MatrixScaling(float x, float y, float z)
+{
+    Float4X4 m;
+    SDL_zero(m);
+    m.v._11 = x;
+    m.v._22 = y;
+    m.v._33 = z;
+    m.v._44 = 1.0f;
+    return m;
+}
+
+Float4X4 MatrixTranslation(float x, float y, float z)
+{
+    Float4X4 m;
+    SDL_zero(m);
+    m.v._11 = 1.0f;
+    m.v._22 = 1.0f;
+    m.v._33 = 1.0f;
+    m.v._44 = 1.0f;
+    m.v._41 = x;
+    m.v._42 = y;
+    m.v._43 = z;
+    return m;
+}
+
+Float4X4 MatrixRotationX(float r)
+{
+    float sinR = SDL_sinf(r);
+    float cosR = SDL_cosf(r);
+    Float4X4 m;
+    SDL_zero(m);
+    m.v._11 = 1.0f;
+    m.v._22 = cosR;
+    m.v._23 = sinR;
+    m.v._32 = -sinR;
+    m.v._33 = cosR;
+    m.v._44 = 1.0f;
+    return m;
+}
+
+Float4X4 MatrixRotationY(float r)
+{
+    float sinR = SDL_sinf(r);
+    float cosR = SDL_cosf(r);
+    Float4X4 m;
+    SDL_zero(m);
+    m.v._11 = cosR;
+    m.v._13 = -sinR;
+    m.v._22 = 1.0f;
+    m.v._31 = sinR;
+    m.v._33 = cosR;
+    m.v._44 = 1.0f;
+    return m;
+}
+
+Float4X4 MatrixRotationZ(float r)
+{
+    float sinR = SDL_sinf(r);
+    float cosR = SDL_cosf(r);
+    Float4X4 m;
+    SDL_zero(m);
+    m.v._11 = cosR;
+    m.v._12 = sinR;
+    m.v._21 = -sinR;
+    m.v._22 = cosR;
+    m.v._33 = 1.0f;
+    m.v._44 = 1.0f;
+    return m;
+}
+
+#endif /* (SDL_VIDEO_RENDER_D3D || SDL_VIDEO_RENDER_D3D11 || SDL_VIDEO_RENDER_D3D12) && !defined(SDL_RENDER_DISABLED) */

external/sdl/SDL/src/render/SDL_d3dmath.h

@@ -0,0 +1,81 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if (defined(SDL_VIDEO_RENDER_D3D) || defined(SDL_VIDEO_RENDER_D3D11) || defined(SDL_VIDEO_RENDER_D3D12)) && !defined(SDL_RENDER_DISABLED)
+
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Direct3D matrix math functions */
+
+typedef struct
+{
+    float x;
+    float y;
+} Float2;
+
+typedef struct
+{
+    float x;
+    float y;
+    float z;
+} Float3;
+
+typedef struct
+{
+    float x;
+    float y;
+    float z;
+    float w;
+} Float4;
+
+typedef struct
+{
+    union
+    {
+        struct
+        {
+            float _11, _12, _13, _14;
+            float _21, _22, _23, _24;
+            float _31, _32, _33, _34;
+            float _41, _42, _43, _44;
+        } v;
+        float m[4][4];
+    };
+} Float4X4;
+
+Float4X4 MatrixIdentity();
+Float4X4 MatrixMultiply(Float4X4 M1, Float4X4 M2);
+Float4X4 MatrixScaling(float x, float y, float z);
+Float4X4 MatrixTranslation(float x, float y, float z);
+Float4X4 MatrixRotationX(float r);
+Float4X4 MatrixRotationY(float r);
+Float4X4 MatrixRotationZ(float r);
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* (SDL_VIDEO_RENDER_D3D || SDL_VIDEO_RENDER_D3D11 || SDL_VIDEO_RENDER_D3D12) && !defined(SDL_RENDER_DISABLED) */

external/sdl/SDL/src/render/SDL_sysrender.h

@@ -0,0 +1,318 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#ifndef SDL_sysrender_h_
+#define SDL_sysrender_h_
+
+#include "SDL_yuv_sw_c.h"
+
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * A rectangle, with the origin at the upper left (double precision).
+ */
+typedef struct SDL_DRect
+{
+    double x;
+    double y;
+    double w;
+    double h;
+} SDL_DRect;
+
+/* The SDL 2D rendering system */
+
+typedef struct SDL_RenderDriver SDL_RenderDriver;
+
+/* Rendering view state */
+typedef struct SDL_RenderViewState
+{
+    int pixel_w;
+    int pixel_h;
+    SDL_Rect viewport;
+    SDL_Rect clip_rect;
+    SDL_bool clipping_enabled;
+    SDL_FPoint scale;
+
+} SDL_RenderViewState;
+
+/* Define the SDL texture structure */
+struct SDL_Texture
+{
+    const void *magic;
+    Uint32 format;              /**< The pixel format of the texture */
+    int access;                 /**< SDL_TextureAccess */
+    int w;                      /**< The width of the texture */
+    int h;                      /**< The height of the texture */
+    int modMode;                /**< The texture modulation mode */
+    SDL_BlendMode blendMode;    /**< The texture blend mode */
+    SDL_ScaleMode scaleMode;    /**< The texture scale mode */
+    SDL_Color color;            /**< Texture modulation values */
+    SDL_RenderViewState view;   /**< Target texture view state */
+
+    SDL_Renderer *renderer;
+
+    /* Support for formats not supported directly by the renderer */
+    SDL_Texture *native;
+    SDL_SW_YUVTexture *yuv;
+    void *pixels;
+    int pitch;
+    SDL_Rect locked_rect;
+    SDL_Surface *locked_surface; /**< Locked region exposed as a SDL surface */
+
+    Uint32 last_command_generation; /* last command queue generation this texture was in. */
+
+    void *driverdata; /**< Driver specific texture representation */
+    void *userdata;
+
+    SDL_Texture *prev;
+    SDL_Texture *next;
+};
+
+typedef enum
+{
+    SDL_RENDERCMD_NO_OP,
+    SDL_RENDERCMD_SETVIEWPORT,
+    SDL_RENDERCMD_SETCLIPRECT,
+    SDL_RENDERCMD_SETDRAWCOLOR,
+    SDL_RENDERCMD_CLEAR,
+    SDL_RENDERCMD_DRAW_POINTS,
+    SDL_RENDERCMD_DRAW_LINES,
+    SDL_RENDERCMD_FILL_RECTS,
+    SDL_RENDERCMD_COPY,
+    SDL_RENDERCMD_COPY_EX,
+    SDL_RENDERCMD_GEOMETRY
+} SDL_RenderCommandType;
+
+typedef struct SDL_RenderCommand
+{
+    SDL_RenderCommandType command;
+    union
+    {
+        struct
+        {
+            size_t first;
+            SDL_Rect rect;
+        } viewport;
+        struct
+        {
+            SDL_bool enabled;
+            SDL_Rect rect;
+        } cliprect;
+        struct
+        {
+            size_t first;
+            size_t count;
+            Uint8 r, g, b, a;
+            SDL_BlendMode blend;
+            SDL_Texture *texture;
+        } draw;
+        struct
+        {
+            size_t first;
+            Uint8 r, g, b, a;
+        } color;
+    } data;
+    struct SDL_RenderCommand *next;
+} SDL_RenderCommand;
+
+typedef struct SDL_VertexSolid
+{
+    SDL_FPoint position;
+    SDL_Color color;
+} SDL_VertexSolid;
+
+typedef enum
+{
+    SDL_RENDERLINEMETHOD_POINTS,
+    SDL_RENDERLINEMETHOD_LINES,
+    SDL_RENDERLINEMETHOD_GEOMETRY,
+} SDL_RenderLineMethod;
+
+/* Define the SDL renderer structure */
+struct SDL_Renderer
+{
+    const void *magic;
+
+    void (*WindowEvent)(SDL_Renderer *renderer, const SDL_WindowEvent *event);
+    int (*GetOutputSize)(SDL_Renderer *renderer, int *w, int *h);
+    SDL_bool (*SupportsBlendMode)(SDL_Renderer *renderer, SDL_BlendMode blendMode);
+    int (*CreateTexture)(SDL_Renderer *renderer, SDL_Texture *texture);
+    int (*QueueSetViewport)(SDL_Renderer *renderer, SDL_RenderCommand *cmd);
+    int (*QueueSetDrawColor)(SDL_Renderer *renderer, SDL_RenderCommand *cmd);
+    int (*QueueDrawPoints)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, const SDL_FPoint *points,
+                           int count);
+    int (*QueueDrawLines)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, const SDL_FPoint *points,
+                          int count);
+    int (*QueueFillRects)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, const SDL_FRect *rects,
+                          int count);
+    int (*QueueCopy)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL_Texture *texture,
+                     const SDL_FRect *srcrect, const SDL_FRect *dstrect);
+    int (*QueueCopyEx)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL_Texture *texture,
+                       const SDL_FRect *srcquad, const SDL_FRect *dstrect,
+                       const double angle, const SDL_FPoint *center, const SDL_RendererFlip flip, float scale_x, float scale_y);
+    int (*QueueGeometry)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL_Texture *texture,
+                         const float *xy, int xy_stride, const SDL_Color *color, int color_stride, const float *uv, int uv_stride,
+                         int num_vertices, const void *indices, int num_indices, int size_indices,
+                         float scale_x, float scale_y);
+
+    int (*RunCommandQueue)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, void *vertices, size_t vertsize);
+    int (*UpdateTexture)(SDL_Renderer *renderer, SDL_Texture *texture,
+                         const SDL_Rect *rect, const void *pixels,
+                         int pitch);
+#if SDL_HAVE_YUV
+    int (*UpdateTextureYUV)(SDL_Renderer *renderer, SDL_Texture *texture,
+                            const SDL_Rect *rect,
+                            const Uint8 *Yplane, int Ypitch,
+                            const Uint8 *Uplane, int Upitch,
+                            const Uint8 *Vplane, int Vpitch);
+    int (*UpdateTextureNV)(SDL_Renderer *renderer, SDL_Texture *texture,
+                           const SDL_Rect *rect,
+                           const Uint8 *Yplane, int Ypitch,
+                           const Uint8 *UVplane, int UVpitch);
+#endif
+    int (*LockTexture)(SDL_Renderer *renderer, SDL_Texture *texture,
+                       const SDL_Rect *rect, void **pixels, int *pitch);
+    void (*UnlockTexture)(SDL_Renderer *renderer, SDL_Texture *texture);
+    void (*SetTextureScaleMode)(SDL_Renderer *renderer, SDL_Texture *texture, SDL_ScaleMode scaleMode);
+    int (*SetRenderTarget)(SDL_Renderer *renderer, SDL_Texture *texture);
+    int (*RenderReadPixels)(SDL_Renderer *renderer, const SDL_Rect *rect,
+                            Uint32 format, void *pixels, int pitch);
+    int (*RenderPresent)(SDL_Renderer *renderer);
+    void (*DestroyTexture)(SDL_Renderer *renderer, SDL_Texture *texture);
+
+    void (*DestroyRenderer)(SDL_Renderer *renderer);
+
+    int (*SetVSync)(SDL_Renderer *renderer, int vsync);
+
+    int (*GL_BindTexture)(SDL_Renderer *renderer, SDL_Texture *texture, float *texw, float *texh);
+    int (*GL_UnbindTexture)(SDL_Renderer *renderer, SDL_Texture *texture);
+
+    void *(*GetMetalLayer)(SDL_Renderer *renderer);
+    void *(*GetMetalCommandEncoder)(SDL_Renderer *renderer);
+
+    /* The current renderer info */
+    SDL_RendererInfo info;
+
+    /* The window associated with the renderer */
+    SDL_Window *window;
+    SDL_bool hidden;
+
+    /* Whether we should simulate vsync */
+    SDL_bool wanted_vsync;
+    SDL_bool simulate_vsync;
+    Uint64 simulate_vsync_interval_ns;
+    Uint64 last_present;
+
+    /* Support for logical output coordinates */
+    SDL_Texture *logical_target;
+    SDL_RendererLogicalPresentation logical_presentation_mode;
+    SDL_ScaleMode logical_scale_mode;
+    SDL_FRect logical_src_rect;
+    SDL_FRect logical_dst_rect;
+
+    SDL_RenderViewState *view;
+    SDL_RenderViewState main_view;
+
+    /* The window pixel to point coordinate scale */
+    SDL_FPoint dpi_scale;
+
+    /* The method of drawing lines */
+    SDL_RenderLineMethod line_method;
+
+    /* List of triangle indices to draw rects */
+    int rect_index_order[6];
+
+    /* The list of textures */
+    SDL_Texture *textures;
+    SDL_Texture *target;
+    SDL_Mutex *target_mutex;
+
+    SDL_Color color;         /**< Color for drawing operations values */
+    SDL_BlendMode blendMode; /**< The drawing blend mode */
+
+    SDL_bool always_batch;
+    SDL_bool batching;
+    SDL_RenderCommand *render_commands;
+    SDL_RenderCommand *render_commands_tail;
+    SDL_RenderCommand *render_commands_pool;
+    Uint32 render_command_generation;
+    Uint32 last_queued_color;
+    SDL_Rect last_queued_viewport;
+    SDL_Rect last_queued_cliprect;
+    SDL_bool last_queued_cliprect_enabled;
+    SDL_bool color_queued;
+    SDL_bool viewport_queued;
+    SDL_bool cliprect_queued;
+
+    void *vertex_data;
+    size_t vertex_data_used;
+    size_t vertex_data_allocation;
+
+    void *driverdata;
+};
+
+/* Define the SDL render driver structure */
+struct SDL_RenderDriver
+{
+    SDL_Renderer *(*CreateRenderer)(SDL_Window *window, Uint32 flags);
+
+    /* Info about the renderer capabilities */
+    SDL_RendererInfo info;
+};
+
+/* Not all of these are available in a given build. Use #ifdefs, etc. */
+extern SDL_RenderDriver D3D_RenderDriver;
+extern SDL_RenderDriver D3D11_RenderDriver;
+extern SDL_RenderDriver D3D12_RenderDriver;
+extern SDL_RenderDriver GL_RenderDriver;
+extern SDL_RenderDriver GLES2_RenderDriver;
+extern SDL_RenderDriver METAL_RenderDriver;
+extern SDL_RenderDriver PS2_RenderDriver;
+extern SDL_RenderDriver PSP_RenderDriver;
+extern SDL_RenderDriver SW_RenderDriver;
+extern SDL_RenderDriver VITA_GXM_RenderDriver;
+
+/* Blend mode functions */
+extern SDL_BlendFactor SDL_GetBlendModeSrcColorFactor(SDL_BlendMode blendMode);
+extern SDL_BlendFactor SDL_GetBlendModeDstColorFactor(SDL_BlendMode blendMode);
+extern SDL_BlendOperation SDL_GetBlendModeColorOperation(SDL_BlendMode blendMode);
+extern SDL_BlendFactor SDL_GetBlendModeSrcAlphaFactor(SDL_BlendMode blendMode);
+extern SDL_BlendFactor SDL_GetBlendModeDstAlphaFactor(SDL_BlendMode blendMode);
+extern SDL_BlendOperation SDL_GetBlendModeAlphaOperation(SDL_BlendMode blendMode);
+
+/* drivers call this during their Queue*() methods to make space in a array that are used
+   for a vertex buffer during RunCommandQueue(). Pointers returned here are only valid until
+   the next call, because it might be in an array that gets realloc()'d. */
+extern void *SDL_AllocateRenderVertices(SDL_Renderer *renderer, const size_t numbytes, const size_t alignment, size_t *offset);
+
+extern int SDL_PrivateBlitSurfaceUncheckedScaled(SDL_Surface *src, const SDL_Rect *srcrect, SDL_Surface *dst, const SDL_Rect *dstrect, SDL_ScaleMode scaleMode);
+extern int SDL_PrivateBlitSurfaceScaled(SDL_Surface *src, const SDL_Rect *srcrect, SDL_Surface *dst, SDL_Rect *dstrect, SDL_ScaleMode scaleMode);
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SDL_sysrender_h_ */

external/sdl/SDL/src/render/SDL_yuv_sw.c

@@ -0,0 +1,403 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+/* This is the software implementation of the YUV texture support */
+
+#if SDL_HAVE_YUV
+
+#include "SDL_yuv_sw_c.h"
+#include "../video/SDL_yuv_c.h"
+
+SDL_SW_YUVTexture *SDL_SW_CreateYUVTexture(Uint32 format, int w, int h)
+{
+    SDL_SW_YUVTexture *swdata;
+
+    switch (format) {
+    case SDL_PIXELFORMAT_YV12:
+    case SDL_PIXELFORMAT_IYUV:
+    case SDL_PIXELFORMAT_YUY2:
+    case SDL_PIXELFORMAT_UYVY:
+    case SDL_PIXELFORMAT_YVYU:
+    case SDL_PIXELFORMAT_NV12:
+    case SDL_PIXELFORMAT_NV21:
+        break;
+    default:
+        SDL_SetError("Unsupported YUV format");
+        return NULL;
+    }
+
+    swdata = (SDL_SW_YUVTexture *)SDL_calloc(1, sizeof(*swdata));
+    if (swdata == NULL) {
+        SDL_OutOfMemory();
+        return NULL;
+    }
+
+    swdata->format = format;
+    swdata->target_format = SDL_PIXELFORMAT_UNKNOWN;
+    swdata->w = w;
+    swdata->h = h;
+    {
+        size_t dst_size;
+        if (SDL_CalculateYUVSize(format, w, h, &dst_size, NULL) < 0) {
+            SDL_SW_DestroyYUVTexture(swdata);
+            SDL_OutOfMemory();
+            return NULL;
+        }
+        swdata->pixels = (Uint8 *)SDL_aligned_alloc(SDL_SIMDGetAlignment(), dst_size);
+        if (!swdata->pixels) {
+            SDL_SW_DestroyYUVTexture(swdata);
+            SDL_OutOfMemory();
+            return NULL;
+        }
+    }
+
+    /* Find the pitch and offset values for the texture */
+    switch (format) {
+    case SDL_PIXELFORMAT_YV12:
+    case SDL_PIXELFORMAT_IYUV:
+        swdata->pitches[0] = w;
+        swdata->pitches[1] = (swdata->pitches[0] + 1) / 2;
+        swdata->pitches[2] = (swdata->pitches[0] + 1) / 2;
+        swdata->planes[0] = swdata->pixels;
+        swdata->planes[1] = swdata->planes[0] + swdata->pitches[0] * h;
+        swdata->planes[2] = swdata->planes[1] + swdata->pitches[1] * ((h + 1) / 2);
+        break;
+    case SDL_PIXELFORMAT_YUY2:
+    case SDL_PIXELFORMAT_UYVY:
+    case SDL_PIXELFORMAT_YVYU:
+        swdata->pitches[0] = ((w + 1) / 2) * 4;
+        swdata->planes[0] = swdata->pixels;
+        break;
+
+    case SDL_PIXELFORMAT_NV12:
+    case SDL_PIXELFORMAT_NV21:
+        swdata->pitches[0] = w;
+        swdata->pitches[1] = 2 * ((swdata->pitches[0] + 1) / 2);
+        swdata->planes[0] = swdata->pixels;
+        swdata->planes[1] = swdata->planes[0] + swdata->pitches[0] * h;
+        break;
+
+    default:
+        SDL_assert(0 && "We should never get here (caught above)");
+        break;
+    }
+
+    /* We're all done.. */
+    return swdata;
+}
+
+int SDL_SW_QueryYUVTexturePixels(SDL_SW_YUVTexture *swdata, void **pixels,
+                                 int *pitch)
+{
+    *pixels = swdata->planes[0];
+    *pitch = swdata->pitches[0];
+    return 0;
+}
+
+int SDL_SW_UpdateYUVTexture(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect,
+                            const void *pixels, int pitch)
+{
+    switch (swdata->format) {
+    case SDL_PIXELFORMAT_YV12:
+    case SDL_PIXELFORMAT_IYUV:
+        if (rect->x == 0 && rect->y == 0 &&
+            rect->w == swdata->w && rect->h == swdata->h) {
+            SDL_memcpy(swdata->pixels, pixels,
+                       (size_t)(swdata->h * swdata->w) + 2 * ((swdata->h + 1) / 2) * ((swdata->w + 1) / 2));
+        } else {
+            Uint8 *src, *dst;
+            int row;
+            size_t length;
+
+            /* Copy the Y plane */
+            src = (Uint8 *)pixels;
+            dst = swdata->pixels + rect->y * swdata->w + rect->x;
+            length = rect->w;
+            for (row = 0; row < rect->h; ++row) {
+                SDL_memcpy(dst, src, length);
+                src += pitch;
+                dst += swdata->w;
+            }
+
+            /* Copy the next plane */
+            src = (Uint8 *)pixels + rect->h * pitch;
+            dst = swdata->pixels + swdata->h * swdata->w;
+            dst += rect->y / 2 * ((swdata->w + 1) / 2) + rect->x / 2;
+            length = (rect->w + 1) / 2;
+            for (row = 0; row < (rect->h + 1) / 2; ++row) {
+                SDL_memcpy(dst, src, length);
+                src += (pitch + 1) / 2;
+                dst += (swdata->w + 1) / 2;
+            }
+
+            /* Copy the next plane */
+            src = (Uint8 *)pixels + rect->h * pitch + ((rect->h + 1) / 2) * ((pitch + 1) / 2);
+            dst = swdata->pixels + swdata->h * swdata->w +
+                  ((swdata->h + 1) / 2) * ((swdata->w + 1) / 2);
+            dst += rect->y / 2 * ((swdata->w + 1) / 2) + rect->x / 2;
+            length = (rect->w + 1) / 2;
+            for (row = 0; row < (rect->h + 1) / 2; ++row) {
+                SDL_memcpy(dst, src, length);
+                src += (pitch + 1) / 2;
+                dst += (swdata->w + 1) / 2;
+            }
+        }
+        break;
+    case SDL_PIXELFORMAT_YUY2:
+    case SDL_PIXELFORMAT_UYVY:
+    case SDL_PIXELFORMAT_YVYU:
+    {
+        Uint8 *src, *dst;
+        int row;
+        size_t length;
+
+        src = (Uint8 *)pixels;
+        dst =
+            swdata->planes[0] + rect->y * swdata->pitches[0] +
+            rect->x * 2;
+        length = 4 * (((size_t)rect->w + 1) / 2);
+        for (row = 0; row < rect->h; ++row) {
+            SDL_memcpy(dst, src, length);
+            src += pitch;
+            dst += swdata->pitches[0];
+        }
+    } break;
+    case SDL_PIXELFORMAT_NV12:
+    case SDL_PIXELFORMAT_NV21:
+    {
+        if (rect->x == 0 && rect->y == 0 && rect->w == swdata->w && rect->h == swdata->h) {
+            SDL_memcpy(swdata->pixels, pixels,
+                       (size_t)(swdata->h * swdata->w) + 2 * ((swdata->h + 1) / 2) * ((swdata->w + 1) / 2));
+        } else {
+
+            Uint8 *src, *dst;
+            int row;
+            size_t length;
+
+            /* Copy the Y plane */
+            src = (Uint8 *)pixels;
+            dst = swdata->pixels + rect->y * swdata->w + rect->x;
+            length = rect->w;
+            for (row = 0; row < rect->h; ++row) {
+                SDL_memcpy(dst, src, length);
+                src += pitch;
+                dst += swdata->w;
+            }
+
+            /* Copy the next plane */
+            src = (Uint8 *)pixels + rect->h * pitch;
+            dst = swdata->pixels + swdata->h * swdata->w;
+            dst += 2 * ((rect->y + 1) / 2) * ((swdata->w + 1) / 2) + 2 * (rect->x / 2);
+            length = 2 * (((size_t)rect->w + 1) / 2);
+            for (row = 0; row < (rect->h + 1) / 2; ++row) {
+                SDL_memcpy(dst, src, length);
+                src += 2 * ((pitch + 1) / 2);
+                dst += 2 * ((swdata->w + 1) / 2);
+            }
+        }
+    }
+    }
+    return 0;
+}
+
+int SDL_SW_UpdateYUVTexturePlanar(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect,
+                                  const Uint8 *Yplane, int Ypitch,
+                                  const Uint8 *Uplane, int Upitch,
+                                  const Uint8 *Vplane, int Vpitch)
+{
+    const Uint8 *src;
+    Uint8 *dst;
+    int row;
+    size_t length;
+
+    /* Copy the Y plane */
+    src = Yplane;
+    dst = swdata->pixels + rect->y * swdata->w + rect->x;
+    length = rect->w;
+    for (row = 0; row < rect->h; ++row) {
+        SDL_memcpy(dst, src, length);
+        src += Ypitch;
+        dst += swdata->w;
+    }
+
+    /* Copy the U plane */
+    src = Uplane;
+    if (swdata->format == SDL_PIXELFORMAT_IYUV) {
+        dst = swdata->pixels + swdata->h * swdata->w;
+    } else {
+        dst = swdata->pixels + swdata->h * swdata->w +
+              ((swdata->h + 1) / 2) * ((swdata->w + 1) / 2);
+    }
+    dst += rect->y / 2 * ((swdata->w + 1) / 2) + rect->x / 2;
+    length = (rect->w + 1) / 2;
+    for (row = 0; row < (rect->h + 1) / 2; ++row) {
+        SDL_memcpy(dst, src, length);
+        src += Upitch;
+        dst += (swdata->w + 1) / 2;
+    }
+
+    /* Copy the V plane */
+    src = Vplane;
+    if (swdata->format == SDL_PIXELFORMAT_YV12) {
+        dst = swdata->pixels + swdata->h * swdata->w;
+    } else {
+        dst = swdata->pixels + swdata->h * swdata->w +
+              ((swdata->h + 1) / 2) * ((swdata->w + 1) / 2);
+    }
+    dst += rect->y / 2 * ((swdata->w + 1) / 2) + rect->x / 2;
+    length = (rect->w + 1) / 2;
+    for (row = 0; row < (rect->h + 1) / 2; ++row) {
+        SDL_memcpy(dst, src, length);
+        src += Vpitch;
+        dst += (swdata->w + 1) / 2;
+    }
+    return 0;
+}
+
+int SDL_SW_UpdateNVTexturePlanar(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect,
+                                 const Uint8 *Yplane, int Ypitch,
+                                 const Uint8 *UVplane, int UVpitch)
+{
+    const Uint8 *src;
+    Uint8 *dst;
+    int row;
+    size_t length;
+
+    /* Copy the Y plane */
+    src = Yplane;
+    dst = swdata->pixels + rect->y * swdata->w + rect->x;
+    length = rect->w;
+    for (row = 0; row < rect->h; ++row) {
+        SDL_memcpy(dst, src, length);
+        src += Ypitch;
+        dst += swdata->w;
+    }
+
+    /* Copy the UV or VU plane */
+    src = UVplane;
+    dst = swdata->pixels + swdata->h * swdata->w;
+    dst += rect->y * ((swdata->w + 1) / 2) + rect->x;
+    length = (rect->w + 1) / 2;
+    length *= 2;
+    for (row = 0; row < (rect->h + 1) / 2; ++row) {
+        SDL_memcpy(dst, src, length);
+        src += UVpitch;
+        dst += 2 * ((swdata->w + 1) / 2);
+    }
+
+    return 0;
+}
+
+int SDL_SW_LockYUVTexture(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect,
+                          void **pixels, int *pitch)
+{
+    switch (swdata->format) {
+    case SDL_PIXELFORMAT_YV12:
+    case SDL_PIXELFORMAT_IYUV:
+    case SDL_PIXELFORMAT_NV12:
+    case SDL_PIXELFORMAT_NV21:
+        if (rect && (rect->x != 0 || rect->y != 0 || rect->w != swdata->w || rect->h != swdata->h)) {
+            return SDL_SetError("YV12, IYUV, NV12, NV21 textures only support full surface locks");
+        }
+        break;
+    }
+
+    if (rect) {
+        *pixels = swdata->planes[0] + rect->y * swdata->pitches[0] + rect->x * 2;
+    } else {
+        *pixels = swdata->planes[0];
+    }
+    *pitch = swdata->pitches[0];
+    return 0;
+}
+
+void SDL_SW_UnlockYUVTexture(SDL_SW_YUVTexture *swdata)
+{
+}
+
+int SDL_SW_CopyYUVToRGB(SDL_SW_YUVTexture *swdata, const SDL_Rect *srcrect,
+                        Uint32 target_format, int w, int h, void *pixels,
+                        int pitch)
+{
+    int stretch;
+
+    /* Make sure we're set up to display in the desired format */
+    if (target_format != swdata->target_format && swdata->display) {
+        SDL_DestroySurface(swdata->display);
+        swdata->display = NULL;
+    }
+
+    stretch = 0;
+    if (srcrect->x || srcrect->y || srcrect->w < swdata->w || srcrect->h < swdata->h) {
+        /* The source rectangle has been clipped.
+           Using a scratch surface is easier than adding clipped
+           source support to all the blitters, plus that would
+           slow them down in the general unclipped case.
+         */
+        stretch = 1;
+    } else if ((srcrect->w != w) || (srcrect->h != h)) {
+        stretch = 1;
+    }
+    if (stretch) {
+        if (swdata->display) {
+            swdata->display->w = w;
+            swdata->display->h = h;
+            swdata->display->pixels = pixels;
+            swdata->display->pitch = pitch;
+        } else {
+            swdata->display = SDL_CreateSurfaceFrom(pixels, w, h, pitch, target_format);
+            if (!swdata->display) {
+                return -1;
+            }
+        }
+        if (!swdata->stretch) {
+            swdata->stretch = SDL_CreateSurface(swdata->w, swdata->h, target_format);
+            if (!swdata->stretch) {
+                return -1;
+            }
+        }
+        pixels = swdata->stretch->pixels;
+        pitch = swdata->stretch->pitch;
+    }
+    if (SDL_ConvertPixels(swdata->w, swdata->h, swdata->format,
+                          swdata->planes[0], swdata->pitches[0],
+                          target_format, pixels, pitch) < 0) {
+        return -1;
+    }
+    if (stretch) {
+        SDL_Rect rect = *srcrect;
+        SDL_SoftStretch(swdata->stretch, &rect, swdata->display, NULL);
+    }
+    return 0;
+}
+
+void SDL_SW_DestroyYUVTexture(SDL_SW_YUVTexture *swdata)
+{
+    if (swdata) {
+        SDL_aligned_free(swdata->pixels);
+        SDL_DestroySurface(swdata->stretch);
+        SDL_DestroySurface(swdata->display);
+        SDL_free(swdata);
+    }
+}
+
+#endif /* SDL_HAVE_YUV */

external/sdl/SDL/src/render/SDL_yuv_sw_c.h

@@ -0,0 +1,67 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef SDL_yuv_sw_c_h_
+#define SDL_yuv_sw_c_h_
+
+#include "SDL_internal.h"
+
+/* This is the software implementation of the YUV texture support */
+
+struct SDL_SW_YUVTexture
+{
+    Uint32 format;
+    Uint32 target_format;
+    int w, h;
+    Uint8 *pixels;
+
+    /* These are just so we don't have to allocate them separately */
+    int pitches[3];
+    Uint8 *planes[3];
+
+    /* This is a temporary surface in case we have to stretch copy */
+    SDL_Surface *stretch;
+    SDL_Surface *display;
+};
+
+typedef struct SDL_SW_YUVTexture SDL_SW_YUVTexture;
+
+SDL_SW_YUVTexture *SDL_SW_CreateYUVTexture(Uint32 format, int w, int h);
+int SDL_SW_QueryYUVTexturePixels(SDL_SW_YUVTexture *swdata, void **pixels,
+                                 int *pitch);
+int SDL_SW_UpdateYUVTexture(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect,
+                            const void *pixels, int pitch);
+int SDL_SW_UpdateYUVTexturePlanar(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect,
+                                  const Uint8 *Yplane, int Ypitch,
+                                  const Uint8 *Uplane, int Upitch,
+                                  const Uint8 *Vplane, int Vpitch);
+int SDL_SW_UpdateNVTexturePlanar(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect,
+                                 const Uint8 *Yplane, int Ypitch,
+                                 const Uint8 *UVplane, int UVpitch);
+int SDL_SW_LockYUVTexture(SDL_SW_YUVTexture *swdata, const SDL_Rect *rect,
+                          void **pixels, int *pitch);
+void SDL_SW_UnlockYUVTexture(SDL_SW_YUVTexture *swdata);
+int SDL_SW_CopyYUVToRGB(SDL_SW_YUVTexture *swdata, const SDL_Rect *srcrect,
+                        Uint32 target_format, int w, int h, void *pixels,
+                        int pitch);
+void SDL_SW_DestroyYUVTexture(SDL_SW_YUVTexture *swdata);
+
+#endif /* SDL_yuv_sw_c_h_ */

external/sdl/SDL/src/render/direct3d/SDL_shaders_d3d.c

@@ -0,0 +1,268 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if defined(SDL_VIDEO_RENDER_D3D) && !defined(SDL_RENDER_DISABLED)
+
+#include "../../core/windows/SDL_windows.h"
+
+#include <d3d9.h>
+
+#include "SDL_shaders_d3d.h"
+
+/* The shaders here were compiled with:
+
+       fxc /T ps_2_0 /Fo"<OUTPUT FILE>" "<INPUT FILE>"
+
+   Shader object code was converted to a list of DWORDs via the following
+   *nix style command (available separately from Windows + MSVC):
+
+     hexdump -v -e '6/4 "0x%08.8x, " "\n"' <FILE>
+*/
+
+/* --- D3D9_PixelShader_YUV_JPEG.hlsl ---
+    Texture2D theTextureY : register(t0);
+    Texture2D theTextureU : register(t1);
+    Texture2D theTextureV : register(t2);
+    SamplerState theSampler = sampler_state
+    {
+        addressU = Clamp;
+        addressV = Clamp;
+        mipfilter = NONE;
+        minfilter = LINEAR;
+        magfilter = LINEAR;
+    };
+
+    struct PixelShaderInput
+    {
+        float4 pos : SV_POSITION;
+        float2 tex : TEXCOORD0;
+        float4 color : COLOR0;
+    };
+
+    float4 main(PixelShaderInput input) : SV_TARGET
+    {
+        const float3 offset = {0.0, -0.501960814, -0.501960814};
+        const float3 Rcoeff = {1.0000,  0.0000,  1.4020};
+        const float3 Gcoeff = {1.0000, -0.3441, -0.7141};
+        const float3 Bcoeff = {1.0000,  1.7720,  0.0000};
+
+        float4 Output;
+
+        float3 yuv;
+        yuv.x = theTextureY.Sample(theSampler, input.tex).r;
+        yuv.y = theTextureU.Sample(theSampler, input.tex).r;
+        yuv.z = theTextureV.Sample(theSampler, input.tex).r;
+
+        yuv += offset;
+        Output.r = dot(yuv, Rcoeff);
+        Output.g = dot(yuv, Gcoeff);
+        Output.b = dot(yuv, Bcoeff);
+        Output.a = 1.0f;
+
+        return Output * input.color;
+    }
+*/
+static const DWORD D3D9_PixelShader_YUV_JPEG[] = {
+    0xffff0200, 0x0044fffe, 0x42415443, 0x0000001c, 0x000000d7, 0xffff0200,
+    0x00000003, 0x0000001c, 0x00000100, 0x000000d0, 0x00000058, 0x00010003,
+    0x00000001, 0x00000070, 0x00000000, 0x00000080, 0x00020003, 0x00000001,
+    0x00000098, 0x00000000, 0x000000a8, 0x00000003, 0x00000001, 0x000000c0,
+    0x00000000, 0x53656874, 0x6c706d61, 0x742b7265, 0x65546568, 0x72757478,
+    0xab005565, 0x00070004, 0x00040001, 0x00000001, 0x00000000, 0x53656874,
+    0x6c706d61, 0x742b7265, 0x65546568, 0x72757478, 0xab005665, 0x00070004,
+    0x00040001, 0x00000001, 0x00000000, 0x53656874, 0x6c706d61, 0x742b7265,
+    0x65546568, 0x72757478, 0xab005965, 0x00070004, 0x00040001, 0x00000001,
+    0x00000000, 0x325f7370, 0x4d00305f, 0x6f726369, 0x74666f73, 0x29522820,
+    0x534c4820, 0x6853204c, 0x72656461, 0x6d6f4320, 0x656c6970, 0x2e362072,
+    0x36392e33, 0x312e3030, 0x34383336, 0xababab00, 0x05000051, 0xa00f0000,
+    0x00000000, 0xbf008081, 0xbf008081, 0x3f800000, 0x05000051, 0xa00f0001,
+    0x3f800000, 0x00000000, 0x3fb374bc, 0x00000000, 0x05000051, 0xa00f0002,
+    0x3f800000, 0xbeb02de0, 0xbf36cf42, 0x00000000, 0x05000051, 0xa00f0003,
+    0x3f800000, 0x3fe2d0e5, 0x00000000, 0x00000000, 0x0200001f, 0x80000000,
+    0xb0030000, 0x0200001f, 0x80000000, 0x900f0000, 0x0200001f, 0x90000000,
+    0xa00f0800, 0x0200001f, 0x90000000, 0xa00f0801, 0x0200001f, 0x90000000,
+    0xa00f0802, 0x03000042, 0x800f0000, 0xb0e40000, 0xa0e40800, 0x03000042,
+    0x800f0001, 0xb0e40000, 0xa0e40801, 0x03000042, 0x800f0002, 0xb0e40000,
+    0xa0e40802, 0x02000001, 0x80020000, 0x80000001, 0x02000001, 0x80040000,
+    0x80000002, 0x03000002, 0x80070000, 0x80e40000, 0xa0e40000, 0x03000008,
+    0x80010001, 0x80e40000, 0xa0e40001, 0x03000008, 0x80020001, 0x80e40000,
+    0xa0e40002, 0x0400005a, 0x80040001, 0x80e40000, 0xa0e40003, 0xa0aa0003,
+    0x02000001, 0x80080001, 0xa0ff0000, 0x03000005, 0x800f0000, 0x80e40001,
+    0x90e40000, 0x02000001, 0x800f0800, 0x80e40000, 0x0000ffff
+};
+
+/* --- D3D9_PixelShader_YUV_BT601.hlsl ---
+    Texture2D theTextureY : register(t0);
+    Texture2D theTextureU : register(t1);
+    Texture2D theTextureV : register(t2);
+    SamplerState theSampler = sampler_state
+    {
+        addressU = Clamp;
+        addressV = Clamp;
+        mipfilter = NONE;
+        minfilter = LINEAR;
+        magfilter = LINEAR;
+    };
+
+    struct PixelShaderInput
+    {
+        float4 pos : SV_POSITION;
+        float2 tex : TEXCOORD0;
+        float4 color : COLOR0;
+    };
+
+    float4 main(PixelShaderInput input) : SV_TARGET
+    {
+        const float3 offset = {-0.0627451017, -0.501960814, -0.501960814};
+        const float3 Rcoeff = {1.1644,  0.0000,  1.5960};
+        const float3 Gcoeff = {1.1644, -0.3918, -0.8130};
+        const float3 Bcoeff = {1.1644,  2.0172,  0.0000};
+
+        float4 Output;
+
+        float3 yuv;
+        yuv.x = theTextureY.Sample(theSampler, input.tex).r;
+        yuv.y = theTextureU.Sample(theSampler, input.tex).r;
+        yuv.z = theTextureV.Sample(theSampler, input.tex).r;
+
+        yuv += offset;
+        Output.r = dot(yuv, Rcoeff);
+        Output.g = dot(yuv, Gcoeff);
+        Output.b = dot(yuv, Bcoeff);
+        Output.a = 1.0f;
+
+        return Output * input.color;
+    }
+*/
+static const DWORD D3D9_PixelShader_YUV_BT601[] = {
+    0xffff0200, 0x0044fffe, 0x42415443, 0x0000001c, 0x000000d7, 0xffff0200,
+    0x00000003, 0x0000001c, 0x00000100, 0x000000d0, 0x00000058, 0x00010003,
+    0x00000001, 0x00000070, 0x00000000, 0x00000080, 0x00020003, 0x00000001,
+    0x00000098, 0x00000000, 0x000000a8, 0x00000003, 0x00000001, 0x000000c0,
+    0x00000000, 0x53656874, 0x6c706d61, 0x742b7265, 0x65546568, 0x72757478,
+    0xab005565, 0x00070004, 0x00040001, 0x00000001, 0x00000000, 0x53656874,
+    0x6c706d61, 0x742b7265, 0x65546568, 0x72757478, 0xab005665, 0x00070004,
+    0x00040001, 0x00000001, 0x00000000, 0x53656874, 0x6c706d61, 0x742b7265,
+    0x65546568, 0x72757478, 0xab005965, 0x00070004, 0x00040001, 0x00000001,
+    0x00000000, 0x325f7370, 0x4d00305f, 0x6f726369, 0x74666f73, 0x29522820,
+    0x534c4820, 0x6853204c, 0x72656461, 0x6d6f4320, 0x656c6970, 0x2e362072,
+    0x36392e33, 0x312e3030, 0x34383336, 0xababab00, 0x05000051, 0xa00f0000,
+    0xbd808081, 0xbf008081, 0xbf008081, 0x3f800000, 0x05000051, 0xa00f0001,
+    0x3f950b0f, 0x00000000, 0x3fcc49ba, 0x00000000, 0x05000051, 0xa00f0002,
+    0x3f950b0f, 0xbec89a02, 0xbf5020c5, 0x00000000, 0x05000051, 0xa00f0003,
+    0x3f950b0f, 0x400119ce, 0x00000000, 0x00000000, 0x0200001f, 0x80000000,
+    0xb0030000, 0x0200001f, 0x80000000, 0x900f0000, 0x0200001f, 0x90000000,
+    0xa00f0800, 0x0200001f, 0x90000000, 0xa00f0801, 0x0200001f, 0x90000000,
+    0xa00f0802, 0x03000042, 0x800f0000, 0xb0e40000, 0xa0e40800, 0x03000042,
+    0x800f0001, 0xb0e40000, 0xa0e40801, 0x03000042, 0x800f0002, 0xb0e40000,
+    0xa0e40802, 0x02000001, 0x80020000, 0x80000001, 0x02000001, 0x80040000,
+    0x80000002, 0x03000002, 0x80070000, 0x80e40000, 0xa0e40000, 0x03000008,
+    0x80010001, 0x80e40000, 0xa0e40001, 0x03000008, 0x80020001, 0x80e40000,
+    0xa0e40002, 0x0400005a, 0x80040001, 0x80e40000, 0xa0e40003, 0xa0aa0003,
+    0x02000001, 0x80080001, 0xa0ff0000, 0x03000005, 0x800f0000, 0x80e40001,
+    0x90e40000, 0x02000001, 0x800f0800, 0x80e40000, 0x0000ffff
+};
+
+/* --- D3D9_PixelShader_YUV_BT709.hlsl ---
+    Texture2D theTextureY : register(t0);
+    Texture2D theTextureU : register(t1);
+    Texture2D theTextureV : register(t2);
+    SamplerState theSampler = sampler_state
+    {
+        addressU = Clamp;
+        addressV = Clamp;
+        mipfilter = NONE;
+        minfilter = LINEAR;
+        magfilter = LINEAR;
+    };
+
+    struct PixelShaderInput
+    {
+        float4 pos : SV_POSITION;
+        float2 tex : TEXCOORD0;
+        float4 color : COLOR0;
+    };
+
+    float4 main(PixelShaderInput input) : SV_TARGET
+    {
+        const float3 offset = {-0.0627451017, -0.501960814, -0.501960814};
+        const float3 Rcoeff = {1.1644,  0.0000,  1.7927};
+        const float3 Gcoeff = {1.1644, -0.2132, -0.5329};
+        const float3 Bcoeff = {1.1644,  2.1124,  0.0000};
+
+        float4 Output;
+
+        float3 yuv;
+        yuv.x = theTextureY.Sample(theSampler, input.tex).r;
+        yuv.y = theTextureU.Sample(theSampler, input.tex).r;
+        yuv.z = theTextureV.Sample(theSampler, input.tex).r;
+
+        yuv += offset;
+        Output.r = dot(yuv, Rcoeff);
+        Output.g = dot(yuv, Gcoeff);
+        Output.b = dot(yuv, Bcoeff);
+        Output.a = 1.0f;
+
+        return Output * input.color;
+    }
+*/
+static const DWORD D3D9_PixelShader_YUV_BT709[] = {
+    0xffff0200, 0x0044fffe, 0x42415443, 0x0000001c, 0x000000d7, 0xffff0200,
+    0x00000003, 0x0000001c, 0x00000100, 0x000000d0, 0x00000058, 0x00010003,
+    0x00000001, 0x00000070, 0x00000000, 0x00000080, 0x00020003, 0x00000001,
+    0x00000098, 0x00000000, 0x000000a8, 0x00000003, 0x00000001, 0x000000c0,
+    0x00000000, 0x53656874, 0x6c706d61, 0x742b7265, 0x65546568, 0x72757478,
+    0xab005565, 0x00070004, 0x00040001, 0x00000001, 0x00000000, 0x53656874,
+    0x6c706d61, 0x742b7265, 0x65546568, 0x72757478, 0xab005665, 0x00070004,
+    0x00040001, 0x00000001, 0x00000000, 0x53656874, 0x6c706d61, 0x742b7265,
+    0x65546568, 0x72757478, 0xab005965, 0x00070004, 0x00040001, 0x00000001,
+    0x00000000, 0x325f7370, 0x4d00305f, 0x6f726369, 0x74666f73, 0x29522820,
+    0x534c4820, 0x6853204c, 0x72656461, 0x6d6f4320, 0x656c6970, 0x2e362072,
+    0x36392e33, 0x312e3030, 0x34383336, 0xababab00, 0x05000051, 0xa00f0000,
+    0xbd808081, 0xbf008081, 0xbf008081, 0x3f800000, 0x05000051, 0xa00f0001,
+    0x3f950b0f, 0x00000000, 0x3fe57732, 0x00000000, 0x05000051, 0xa00f0002,
+    0x3f950b0f, 0xbe5a511a, 0xbf086c22, 0x00000000, 0x05000051, 0xa00f0003,
+    0x3f950b0f, 0x40073190, 0x00000000, 0x00000000, 0x0200001f, 0x80000000,
+    0xb0030000, 0x0200001f, 0x80000000, 0x900f0000, 0x0200001f, 0x90000000,
+    0xa00f0800, 0x0200001f, 0x90000000, 0xa00f0801, 0x0200001f, 0x90000000,
+    0xa00f0802, 0x03000042, 0x800f0000, 0xb0e40000, 0xa0e40800, 0x03000042,
+    0x800f0001, 0xb0e40000, 0xa0e40801, 0x03000042, 0x800f0002, 0xb0e40000,
+    0xa0e40802, 0x02000001, 0x80020000, 0x80000001, 0x02000001, 0x80040000,
+    0x80000002, 0x03000002, 0x80070000, 0x80e40000, 0xa0e40000, 0x03000008,
+    0x80010001, 0x80e40000, 0xa0e40001, 0x03000008, 0x80020001, 0x80e40000,
+    0xa0e40002, 0x0400005a, 0x80040001, 0x80e40000, 0xa0e40003, 0xa0aa0003,
+    0x02000001, 0x80080001, 0xa0ff0000, 0x03000005, 0x800f0000, 0x80e40001,
+    0x90e40000, 0x02000001, 0x800f0800, 0x80e40000, 0x0000ffff
+};
+
+static const DWORD *D3D9_shaders[] = {
+    D3D9_PixelShader_YUV_JPEG,
+    D3D9_PixelShader_YUV_BT601,
+    D3D9_PixelShader_YUV_BT709,
+};
+
+HRESULT D3D9_CreatePixelShader(IDirect3DDevice9 *d3dDevice, D3D9_Shader shader, IDirect3DPixelShader9 **pixelShader)
+{
+    return IDirect3DDevice9_CreatePixelShader(d3dDevice, D3D9_shaders[shader], pixelShader);
+}
+
+#endif /* SDL_VIDEO_RENDER_D3D && !SDL_RENDER_DISABLED */

external/sdl/SDL/src/render/direct3d/SDL_shaders_d3d.h

@@ -0,0 +1,33 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+/* D3D9 shader implementation */
+
+typedef enum
+{
+    SHADER_YUV_JPEG,
+    SHADER_YUV_BT601,
+    SHADER_YUV_BT709,
+    NUM_SHADERS
+} D3D9_Shader;
+
+extern HRESULT D3D9_CreatePixelShader(IDirect3DDevice9 *d3dDevice, D3D9_Shader shader, IDirect3DPixelShader9 **pixelShader);

external/sdl/SDL/src/render/direct3d11/SDL_render_winrt.cpp

@@ -0,0 +1,114 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if defined(SDL_VIDEO_RENDER_D3D11) && !defined(SDL_RENDER_DISABLED)
+
+#include "../../video/winrt/SDL_winrtvideo_cpp.h"
+extern "C" {
+#include "../SDL_sysrender.h"
+}
+
+#include <windows.ui.core.h>
+#include <windows.graphics.display.h>
+
+#if WINAPI_FAMILY == WINAPI_FAMILY_APP
+#include <windows.ui.xaml.media.dxinterop.h>
+#endif
+
+using namespace Windows::UI::Core;
+using namespace Windows::Graphics::Display;
+
+#include <DXGI.h>
+
+#include <SDL3/SDL_syswm.h>
+
+#include "SDL_render_winrt.h"
+
+extern "C" void *
+D3D11_GetCoreWindowFromSDLRenderer(SDL_Renderer *renderer)
+{
+    SDL_Window *sdlWindow = renderer->window;
+    if (renderer->window == NULL) {
+        return NULL;
+    }
+
+    SDL_SysWMinfo sdlWindowInfo;
+    if (SDL_GetWindowWMInfo(sdlWindow, &sdlWindowInfo, SDL_SYSWM_CURRENT_VERSION) < 0 ||
+        sdlWindowInfo.subsystem != SDL_SYSWM_WINRT) {
+        SDL_SetError("Couldn't get window handle");
+        return NULL;
+    }
+
+    if (sdlWindowInfo.subsystem != SDL_SYSWM_WINRT) {
+        return NULL;
+    }
+
+    if (!sdlWindowInfo.info.winrt.window) {
+        return NULL;
+    }
+
+    ABI::Windows::UI::Core::ICoreWindow *coreWindow = NULL;
+    if (FAILED(sdlWindowInfo.info.winrt.window->QueryInterface(&coreWindow))) {
+        return NULL;
+    }
+
+    IUnknown *coreWindowAsIUnknown = NULL;
+    coreWindow->QueryInterface(&coreWindowAsIUnknown);
+    coreWindow->Release();
+
+    return coreWindowAsIUnknown;
+}
+
+extern "C" DXGI_MODE_ROTATION
+D3D11_GetCurrentRotation()
+{
+    const DisplayOrientations currentOrientation = WINRT_DISPLAY_PROPERTY(CurrentOrientation);
+
+    switch (currentOrientation) {
+
+#if SDL_WINAPI_FAMILY_PHONE
+    /* Windows Phone rotations */
+    case DisplayOrientations::Landscape:
+        return DXGI_MODE_ROTATION_ROTATE90;
+    case DisplayOrientations::Portrait:
+        return DXGI_MODE_ROTATION_IDENTITY;
+    case DisplayOrientations::LandscapeFlipped:
+        return DXGI_MODE_ROTATION_ROTATE270;
+    case DisplayOrientations::PortraitFlipped:
+        return DXGI_MODE_ROTATION_ROTATE180;
+#else
+    /* Non-Windows-Phone rotations (ex: Windows 8, Windows RT) */
+    case DisplayOrientations::Landscape:
+        return DXGI_MODE_ROTATION_IDENTITY;
+    case DisplayOrientations::Portrait:
+        return DXGI_MODE_ROTATION_ROTATE270;
+    case DisplayOrientations::LandscapeFlipped:
+        return DXGI_MODE_ROTATION_ROTATE180;
+    case DisplayOrientations::PortraitFlipped:
+        return DXGI_MODE_ROTATION_ROTATE90;
+#endif /* SDL_WINAPI_FAMILY_PHONE */
+    }
+
+    return DXGI_MODE_ROTATION_IDENTITY;
+}
+
+#endif /* SDL_VIDEO_RENDER_D3D11 && !SDL_RENDER_DISABLED */

external/sdl/SDL/src/render/direct3d11/SDL_render_winrt.h

@@ -0,0 +1,36 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if defined(SDL_VIDEO_RENDER_D3D11) && !defined(SDL_RENDER_DISABLED)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void *D3D11_GetCoreWindowFromSDLRenderer(SDL_Renderer *renderer);
+DXGI_MODE_ROTATION D3D11_GetCurrentRotation();
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SDL_VIDEO_RENDER_D3D11 && !SDL_RENDER_DISABLED */

external/sdl/SDL/src/render/direct3d11/SDL_shaders_d3d11.h

@@ -0,0 +1,44 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+/* D3D11 shader implementation */
+
+typedef enum
+{
+    SHADER_SOLID,
+    SHADER_RGB,
+#if SDL_HAVE_YUV
+    SHADER_YUV_JPEG,
+    SHADER_YUV_BT601,
+    SHADER_YUV_BT709,
+    SHADER_NV12_JPEG,
+    SHADER_NV12_BT601,
+    SHADER_NV12_BT709,
+    SHADER_NV21_JPEG,
+    SHADER_NV21_BT601,
+    SHADER_NV21_BT709,
+#endif
+    NUM_SHADERS
+} D3D11_Shader;
+
+extern int D3D11_CreateVertexShader(ID3D11Device1 *d3dDevice, ID3D11VertexShader **vertexShader, ID3D11InputLayout **inputLayout);
+extern int D3D11_CreatePixelShader(ID3D11Device1 *d3dDevice, D3D11_Shader shader, ID3D11PixelShader **pixelShader);

external/sdl/SDL/src/render/direct3d12/SDL_render_d3d12_xbox.cpp

@@ -0,0 +1,27 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#include "SDL_internal.h"
+#if defined(SDL_VIDEO_RENDER_D3D12) && !defined(SDL_RENDER_DISABLED) && (defined(__XBOXONE__) || defined(__XBOXSERIES__))
+#include "SDL_render_d3d12_xbox.h"
+
+#error "This is a placeholder Xbox file, as the real one is under NDA. See README-gdk.md for more info."
+#endif

external/sdl/SDL/src/render/direct3d12/SDL_render_d3d12_xbox.h

@@ -0,0 +1,22 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#error "This is a placeholder Xbox file, as the real one is under NDA. See README-gdk.md for more info."

external/sdl/SDL/src/render/direct3d12/SDL_shaders_d3d12.h

@@ -0,0 +1,67 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+/* D3D12 shader implementation */
+
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum
+{
+    SHADER_SOLID,
+    SHADER_RGB,
+#if SDL_HAVE_YUV
+    SHADER_YUV_JPEG,
+    SHADER_YUV_BT601,
+    SHADER_YUV_BT709,
+    SHADER_NV12_JPEG,
+    SHADER_NV12_BT601,
+    SHADER_NV12_BT709,
+    SHADER_NV21_JPEG,
+    SHADER_NV21_BT601,
+    SHADER_NV21_BT709,
+#endif
+    NUM_SHADERS
+} D3D12_Shader;
+
+typedef enum
+{
+    ROOTSIG_COLOR,
+    ROOTSIG_TEXTURE,
+#if SDL_HAVE_YUV
+    ROOTSIG_YUV,
+    ROOTSIG_NV,
+#endif
+    NUM_ROOTSIGS
+} D3D12_RootSignature;
+
+extern void D3D12_GetVertexShader(D3D12_Shader shader, D3D12_SHADER_BYTECODE *outBytecode);
+extern void D3D12_GetPixelShader(D3D12_Shader shader, D3D12_SHADER_BYTECODE *outBytecode);
+extern D3D12_RootSignature D3D12_GetRootSignatureType(D3D12_Shader shader);
+extern void D3D12_GetRootSignatureData(D3D12_RootSignature rootSig, D3D12_SHADER_BYTECODE *outBytecode);
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+}
+#endif

external/sdl/SDL/src/render/direct3d12/SDL_shaders_d3d12_xboxone.cpp

@@ -0,0 +1,27 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if defined(SDL_VIDEO_RENDER_D3D12) && !defined(SDL_RENDER_DISABLED) && defined(__XBOXONE__)
+
+#error "This is a placeholder Xbox file, as the real one is under NDA. See README-gdk.md for more info."
+
+#endif /* SDL_VIDEO_RENDER_D3D12 && !SDL_RENDER_DISABLED && defined(__XBOXONE__) */

external/sdl/SDL/src/render/direct3d12/SDL_shaders_d3d12_xboxseries.cpp

@@ -0,0 +1,27 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if defined(SDL_VIDEO_RENDER_D3D12) && !defined(SDL_RENDER_DISABLED) && defined(__XBOXSERIES__)
+
+#error "This is a placeholder Xbox file, as the real one is under NDA. See README-gdk.md for more info."
+
+#endif /* SDL_VIDEO_RENDER_D3D12 && !SDL_RENDER_DISABLED && defined(__XBOXSERIES__) */

external/sdl/SDL/src/render/metal/SDL_shaders_metal.metal

@@ -0,0 +1,120 @@
+#include <metal_texture>
+#include <metal_matrix>
+
+using namespace metal;
+
+struct SolidVertexInput
+{
+    float2 position [[attribute(0)]];
+    float4 color    [[attribute(1)]];
+};
+
+struct SolidVertexOutput
+{
+    float4 position [[position]];
+    float4 color;
+    float pointSize [[point_size]];
+};
+
+vertex SolidVertexOutput SDL_Solid_vertex(SolidVertexInput in [[stage_in]],
+                                          constant float4x4 &projection [[buffer(2)]],
+                                          constant float4x4 &transform [[buffer(3)]])
+{
+    SolidVertexOutput v;
+    v.position = (projection * transform) * float4(in.position, 0.0f, 1.0f);
+    v.color = in.color;
+    v.pointSize = 1.0f;
+    return v;
+}
+
+fragment float4 SDL_Solid_fragment(SolidVertexInput in [[stage_in]])
+{
+    return in.color;
+}
+
+struct CopyVertexInput
+{
+    float2 position [[attribute(0)]];
+    float4 color    [[attribute(1)]];
+    float2 texcoord [[attribute(2)]];
+};
+
+struct CopyVertexOutput
+{
+    float4 position [[position]];
+    float4 color;
+    float2 texcoord;
+};
+
+vertex CopyVertexOutput SDL_Copy_vertex(CopyVertexInput in [[stage_in]],
+                                        constant float4x4 &projection [[buffer(2)]],
+                                        constant float4x4 &transform [[buffer(3)]])
+{
+    CopyVertexOutput v;
+    v.position = (projection * transform) * float4(in.position, 0.0f, 1.0f);
+    v.color = in.color;
+    v.texcoord = in.texcoord;
+    return v;
+}
+
+fragment float4 SDL_Copy_fragment(CopyVertexOutput vert [[stage_in]],
+                                  texture2d<float> tex [[texture(0)]],
+                                  sampler s [[sampler(0)]])
+{
+    return tex.sample(s, vert.texcoord) * vert.color;
+}
+
+struct YUVDecode
+{
+    float3 offset;
+    float3 Rcoeff;
+    float3 Gcoeff;
+    float3 Bcoeff;
+};
+
+fragment float4 SDL_YUV_fragment(CopyVertexOutput vert [[stage_in]],
+                                 constant YUVDecode &decode [[buffer(1)]],
+                                 texture2d<float> texY [[texture(0)]],
+                                 texture2d_array<float> texUV [[texture(1)]],
+                                 sampler s [[sampler(0)]])
+{
+    float3 yuv;
+    yuv.x = texY.sample(s, vert.texcoord).r;
+    yuv.y = texUV.sample(s, vert.texcoord, 0).r;
+    yuv.z = texUV.sample(s, vert.texcoord, 1).r;
+
+    yuv += decode.offset;
+
+    return vert.color * float4(dot(yuv, decode.Rcoeff), dot(yuv, decode.Gcoeff), dot(yuv, decode.Bcoeff), 1.0);
+}
+
+fragment float4 SDL_NV12_fragment(CopyVertexOutput vert [[stage_in]],
+                                 constant YUVDecode &decode [[buffer(1)]],
+                                 texture2d<float> texY [[texture(0)]],
+                                 texture2d<float> texUV [[texture(1)]],
+                                 sampler s [[sampler(0)]])
+{
+    float3 yuv;
+    yuv.x = texY.sample(s, vert.texcoord).r;
+    yuv.yz = texUV.sample(s, vert.texcoord).rg;
+
+    yuv += decode.offset;
+
+    return vert.color * float4(dot(yuv, decode.Rcoeff), dot(yuv, decode.Gcoeff), dot(yuv, decode.Bcoeff), 1.0);
+}
+
+fragment float4 SDL_NV21_fragment(CopyVertexOutput vert [[stage_in]],
+                                 constant YUVDecode &decode [[buffer(1)]],
+                                 texture2d<float> texY [[texture(0)]],
+                                 texture2d<float> texUV [[texture(1)]],
+                                 sampler s [[sampler(0)]])
+{
+    float3 yuv;
+    yuv.x = texY.sample(s, vert.texcoord).r;
+    yuv.yz = texUV.sample(s, vert.texcoord).gr;
+
+    yuv += decode.offset;
+
+    return vert.color * float4(dot(yuv, decode.Rcoeff), dot(yuv, decode.Gcoeff), dot(yuv, decode.Bcoeff), 1.0);
+}
+

external/sdl/SDL/src/render/metal/build-metal-shaders.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+set -x
+set -e
+cd `dirname "$0"`
+
+generate_shaders()
+{
+    fileplatform=$1
+    compileplatform=$2
+    sdkplatform=$3
+    minversion=$4
+    xcrun -sdk $sdkplatform metal -c -std=$compileplatform-metal1.1 -m$sdkplatform-version-min=$minversion -Wall -O3 -o ./sdl.air ./SDL_shaders_metal.metal || exit $?
+    xcrun -sdk $sdkplatform metal-ar rc sdl.metalar sdl.air || exit $?
+    xcrun -sdk $sdkplatform metallib -o sdl.metallib sdl.metalar || exit $?
+    xxd -i sdl.metallib | perl -w -p -e 's/\Aunsigned /const unsigned /;' >./SDL_shaders_metal_$fileplatform.h
+    rm -f sdl.air sdl.metalar sdl.metallib
+}
+
+generate_shaders macos macos macosx 10.11
+generate_shaders ios ios iphoneos 8.0
+generate_shaders iphonesimulator ios iphonesimulator 8.0
+generate_shaders tvos ios appletvos 9.0
+generate_shaders tvsimulator ios appletvsimulator 9.0

external/sdl/SDL/src/render/opengl/SDL_glfuncs.h

@@ -0,0 +1,476 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+/* list of OpenGL functions sorted alphabetically
+   If you need to use a GL function from the SDL video subsystem,
+   change its entry from SDL_PROC_UNUSED to SDL_PROC and rebuild.
+*/
+#define SDL_PROC_UNUSED(ret, func, params)
+
+SDL_PROC_UNUSED(void, glAccum, (GLenum, GLfloat))
+SDL_PROC_UNUSED(void, glAlphaFunc, (GLenum, GLclampf))
+SDL_PROC_UNUSED(GLboolean, glAreTexturesResident,
+                (GLsizei, const GLuint *, GLboolean *))
+SDL_PROC_UNUSED(void, glArrayElement, (GLint))
+SDL_PROC(void, glBegin, (GLenum))
+SDL_PROC(void, glBindTexture, (GLenum, GLuint))
+SDL_PROC_UNUSED(void, glBitmap,
+                (GLsizei, GLsizei, GLfloat, GLfloat, GLfloat, GLfloat,
+                 const GLubyte *))
+SDL_PROC(void, glBlendEquation, (GLenum))
+SDL_PROC_UNUSED(void, glBlendFunc, (GLenum, GLenum))
+SDL_PROC(void, glBlendFuncSeparate, (GLenum, GLenum, GLenum, GLenum))
+SDL_PROC_UNUSED(void, glCallList, (GLuint))
+SDL_PROC_UNUSED(void, glCallLists, (GLsizei, GLenum, const GLvoid *))
+SDL_PROC(void, glClear, (GLbitfield))
+SDL_PROC_UNUSED(void, glClearAccum, (GLfloat, GLfloat, GLfloat, GLfloat))
+SDL_PROC(void, glClearColor, (GLclampf, GLclampf, GLclampf, GLclampf))
+SDL_PROC_UNUSED(void, glClearDepth, (GLclampd))
+SDL_PROC_UNUSED(void, glClearIndex, (GLfloat))
+SDL_PROC_UNUSED(void, glClearStencil, (GLint))
+SDL_PROC_UNUSED(void, glClipPlane, (GLenum, const GLdouble *))
+SDL_PROC_UNUSED(void, glColor3b, (GLbyte, GLbyte, GLbyte))
+SDL_PROC_UNUSED(void, glColor3bv, (const GLbyte *))
+SDL_PROC_UNUSED(void, glColor3d, (GLdouble, GLdouble, GLdouble))
+SDL_PROC_UNUSED(void, glColor3dv, (const GLdouble *))
+SDL_PROC_UNUSED(void, glColor3f, (GLfloat, GLfloat, GLfloat))
+SDL_PROC(void, glColor3fv, (const GLfloat *))
+SDL_PROC_UNUSED(void, glColor3i, (GLint, GLint, GLint))
+SDL_PROC_UNUSED(void, glColor3iv, (const GLint *))
+SDL_PROC_UNUSED(void, glColor3s, (GLshort, GLshort, GLshort))
+SDL_PROC_UNUSED(void, glColor3sv, (const GLshort *))
+SDL_PROC_UNUSED(void, glColor3ub, (GLubyte, GLubyte, GLubyte))
+SDL_PROC_UNUSED(void, glColor3ubv, (const GLubyte *))
+SDL_PROC_UNUSED(void, glColor3ui, (GLuint, GLuint, GLuint))
+SDL_PROC_UNUSED(void, glColor3uiv, (const GLuint *))
+SDL_PROC_UNUSED(void, glColor3us, (GLushort, GLushort, GLushort))
+SDL_PROC_UNUSED(void, glColor3usv, (const GLushort *))
+SDL_PROC_UNUSED(void, glColor4b, (GLbyte, GLbyte, GLbyte, GLbyte))
+SDL_PROC_UNUSED(void, glColor4bv, (const GLbyte *))
+SDL_PROC_UNUSED(void, glColor4d, (GLdouble, GLdouble, GLdouble, GLdouble))
+SDL_PROC_UNUSED(void, glColor4dv, (const GLdouble *))
+SDL_PROC(void, glColor4f, (GLfloat, GLfloat, GLfloat, GLfloat))
+SDL_PROC_UNUSED(void, glColor4fv, (const GLfloat *))
+SDL_PROC_UNUSED(void, glColor4i, (GLint, GLint, GLint, GLint))
+SDL_PROC_UNUSED(void, glColor4iv, (const GLint *))
+SDL_PROC_UNUSED(void, glColor4s, (GLshort, GLshort, GLshort, GLshort))
+SDL_PROC_UNUSED(void, glColor4sv, (const GLshort *))
+SDL_PROC(void, glColor4ub,
+         (GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha))
+SDL_PROC_UNUSED(void, glColor4ubv, (const GLubyte *v))
+SDL_PROC_UNUSED(void, glColor4ui,
+                (GLuint red, GLuint green, GLuint blue, GLuint alpha))
+SDL_PROC_UNUSED(void, glColor4uiv, (const GLuint *v))
+SDL_PROC_UNUSED(void, glColor4us,
+                (GLushort red, GLushort green, GLushort blue, GLushort alpha))
+SDL_PROC_UNUSED(void, glColor4usv, (const GLushort *v))
+SDL_PROC_UNUSED(void, glColorMask,
+                (GLboolean red, GLboolean green, GLboolean blue,
+                 GLboolean alpha))
+SDL_PROC_UNUSED(void, glColorMaterial, (GLenum face, GLenum mode))
+SDL_PROC(void, glColorPointer,
+         (GLint size, GLenum type, GLsizei stride,
+          const GLvoid *pointer))
+SDL_PROC_UNUSED(void, glCopyPixels,
+                (GLint x, GLint y, GLsizei width, GLsizei height,
+                 GLenum type))
+SDL_PROC_UNUSED(void, glCopyTexImage1D,
+                (GLenum target, GLint level, GLenum internalFormat, GLint x,
+                 GLint y, GLsizei width, GLint border))
+SDL_PROC_UNUSED(void, glCopyTexImage2D,
+                (GLenum target, GLint level, GLenum internalFormat, GLint x,
+                 GLint y, GLsizei width, GLsizei height, GLint border))
+SDL_PROC_UNUSED(void, glCopyTexSubImage1D,
+                (GLenum target, GLint level, GLint xoffset, GLint x, GLint y,
+                 GLsizei width))
+SDL_PROC_UNUSED(void, glCopyTexSubImage2D,
+                (GLenum target, GLint level, GLint xoffset, GLint yoffset,
+                 GLint x, GLint y, GLsizei width, GLsizei height))
+SDL_PROC_UNUSED(void, glCullFace, (GLenum mode))
+SDL_PROC_UNUSED(void, glDeleteLists, (GLuint list, GLsizei range))
+SDL_PROC(void, glDeleteTextures, (GLsizei n, const GLuint *textures))
+SDL_PROC(void, glDepthFunc, (GLenum func))
+SDL_PROC_UNUSED(void, glDepthMask, (GLboolean flag))
+SDL_PROC_UNUSED(void, glDepthRange, (GLclampd zNear, GLclampd zFar))
+SDL_PROC(void, glDisable, (GLenum cap))
+SDL_PROC(void, glDisableClientState, (GLenum array))
+SDL_PROC(void, glDrawArrays, (GLenum mode, GLint first, GLsizei count))
+SDL_PROC_UNUSED(void, glDrawBuffer, (GLenum mode))
+SDL_PROC_UNUSED(void, glDrawElements,
+                (GLenum mode, GLsizei count, GLenum type,
+                 const GLvoid *indices))
+SDL_PROC(void, glDrawPixels,
+         (GLsizei width, GLsizei height, GLenum format, GLenum type,
+          const GLvoid *pixels))
+SDL_PROC_UNUSED(void, glEdgeFlag, (GLboolean flag))
+SDL_PROC_UNUSED(void, glEdgeFlagPointer,
+                (GLsizei stride, const GLvoid *pointer))
+SDL_PROC_UNUSED(void, glEdgeFlagv, (const GLboolean *flag))
+SDL_PROC(void, glEnable, (GLenum cap))
+SDL_PROC(void, glEnableClientState, (GLenum array))
+SDL_PROC(void, glEnd, (void))
+SDL_PROC_UNUSED(void, glEndList, (void))
+SDL_PROC_UNUSED(void, glEvalCoord1d, (GLdouble u))
+SDL_PROC_UNUSED(void, glEvalCoord1dv, (const GLdouble *u))
+SDL_PROC_UNUSED(void, glEvalCoord1f, (GLfloat u))
+SDL_PROC_UNUSED(void, glEvalCoord1fv, (const GLfloat *u))
+SDL_PROC_UNUSED(void, glEvalCoord2d, (GLdouble u, GLdouble v))
+SDL_PROC_UNUSED(void, glEvalCoord2dv, (const GLdouble *u))
+SDL_PROC_UNUSED(void, glEvalCoord2f, (GLfloat u, GLfloat v))
+SDL_PROC_UNUSED(void, glEvalCoord2fv, (const GLfloat *u))
+SDL_PROC_UNUSED(void, glEvalMesh1, (GLenum mode, GLint i1, GLint i2))
+SDL_PROC_UNUSED(void, glEvalMesh2,
+                (GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2))
+SDL_PROC_UNUSED(void, glEvalPoint1, (GLint i))
+SDL_PROC_UNUSED(void, glEvalPoint2, (GLint i, GLint j))
+SDL_PROC_UNUSED(void, glFeedbackBuffer,
+                (GLsizei size, GLenum type, GLfloat *buffer))
+SDL_PROC_UNUSED(void, glFinish, (void))
+SDL_PROC_UNUSED(void, glFlush, (void))
+SDL_PROC_UNUSED(void, glFogf, (GLenum pname, GLfloat param))
+SDL_PROC_UNUSED(void, glFogfv, (GLenum pname, const GLfloat *params))
+SDL_PROC_UNUSED(void, glFogi, (GLenum pname, GLint param))
+SDL_PROC_UNUSED(void, glFogiv, (GLenum pname, const GLint *params))
+SDL_PROC_UNUSED(void, glFrontFace, (GLenum mode))
+SDL_PROC_UNUSED(void, glFrustum,
+                (GLdouble left, GLdouble right, GLdouble bottom,
+                 GLdouble top, GLdouble zNear, GLdouble zFar))
+SDL_PROC_UNUSED(GLuint, glGenLists, (GLsizei range))
+SDL_PROC(void, glGenTextures, (GLsizei n, GLuint *textures))
+SDL_PROC_UNUSED(void, glGetBooleanv, (GLenum pname, GLboolean *params))
+SDL_PROC_UNUSED(void, glGetClipPlane, (GLenum plane, GLdouble *equation))
+SDL_PROC_UNUSED(void, glGetDoublev, (GLenum pname, GLdouble *params))
+SDL_PROC(GLenum, glGetError, (void))
+SDL_PROC(void, glGetFloatv, (GLenum pname, GLfloat *params))
+SDL_PROC(void, glGetIntegerv, (GLenum pname, GLint *params))
+SDL_PROC_UNUSED(void, glGetLightfv,
+                (GLenum light, GLenum pname, GLfloat *params))
+SDL_PROC_UNUSED(void, glGetLightiv,
+                (GLenum light, GLenum pname, GLint *params))
+SDL_PROC_UNUSED(void, glGetMapdv, (GLenum target, GLenum query, GLdouble *v))
+SDL_PROC_UNUSED(void, glGetMapfv, (GLenum target, GLenum query, GLfloat *v))
+SDL_PROC_UNUSED(void, glGetMapiv, (GLenum target, GLenum query, GLint *v))
+SDL_PROC_UNUSED(void, glGetMaterialfv,
+                (GLenum face, GLenum pname, GLfloat *params))
+SDL_PROC_UNUSED(void, glGetMaterialiv,
+                (GLenum face, GLenum pname, GLint *params))
+SDL_PROC_UNUSED(void, glGetPixelMapfv, (GLenum map, GLfloat *values))
+SDL_PROC_UNUSED(void, glGetPixelMapuiv, (GLenum map, GLuint *values))
+SDL_PROC_UNUSED(void, glGetPixelMapusv, (GLenum map, GLushort *values))
+SDL_PROC(void, glGetPointerv, (GLenum pname, GLvoid **params))
+SDL_PROC_UNUSED(void, glGetPolygonStipple, (GLubyte * mask))
+SDL_PROC(const GLubyte *, glGetString, (GLenum name))
+SDL_PROC_UNUSED(void, glGetTexEnvfv,
+                (GLenum target, GLenum pname, GLfloat *params))
+SDL_PROC_UNUSED(void, glGetTexEnviv,
+                (GLenum target, GLenum pname, GLint *params))
+SDL_PROC_UNUSED(void, glGetTexGendv,
+                (GLenum coord, GLenum pname, GLdouble *params))
+SDL_PROC_UNUSED(void, glGetTexGenfv,
+                (GLenum coord, GLenum pname, GLfloat *params))
+SDL_PROC_UNUSED(void, glGetTexGeniv,
+                (GLenum coord, GLenum pname, GLint *params))
+SDL_PROC_UNUSED(void, glGetTexImage,
+                (GLenum target, GLint level, GLenum format, GLenum type,
+                 GLvoid *pixels))
+SDL_PROC_UNUSED(void, glGetTexLevelParameterfv,
+                (GLenum target, GLint level, GLenum pname, GLfloat *params))
+SDL_PROC_UNUSED(void, glGetTexLevelParameteriv,
+                (GLenum target, GLint level, GLenum pname, GLint *params))
+SDL_PROC_UNUSED(void, glGetTexParameterfv,
+                (GLenum target, GLenum pname, GLfloat *params))
+SDL_PROC_UNUSED(void, glGetTexParameteriv,
+                (GLenum target, GLenum pname, GLint *params))
+SDL_PROC_UNUSED(void, glHint, (GLenum target, GLenum mode))
+SDL_PROC_UNUSED(void, glIndexMask, (GLuint mask))
+SDL_PROC_UNUSED(void, glIndexPointer,
+                (GLenum type, GLsizei stride, const GLvoid *pointer))
+SDL_PROC_UNUSED(void, glIndexd, (GLdouble c))
+SDL_PROC_UNUSED(void, glIndexdv, (const GLdouble *c))
+SDL_PROC_UNUSED(void, glIndexf, (GLfloat c))
+SDL_PROC_UNUSED(void, glIndexfv, (const GLfloat *c))
+SDL_PROC_UNUSED(void, glIndexi, (GLint c))
+SDL_PROC_UNUSED(void, glIndexiv, (const GLint *c))
+SDL_PROC_UNUSED(void, glIndexs, (GLshort c))
+SDL_PROC_UNUSED(void, glIndexsv, (const GLshort *c))
+SDL_PROC_UNUSED(void, glIndexub, (GLubyte c))
+SDL_PROC_UNUSED(void, glIndexubv, (const GLubyte *c))
+SDL_PROC_UNUSED(void, glInitNames, (void))
+SDL_PROC_UNUSED(void, glInterleavedArrays,
+                (GLenum format, GLsizei stride, const GLvoid *pointer))
+SDL_PROC_UNUSED(GLboolean, glIsEnabled, (GLenum cap))
+SDL_PROC_UNUSED(GLboolean, glIsList, (GLuint list))
+SDL_PROC_UNUSED(GLboolean, glIsTexture, (GLuint texture))
+SDL_PROC_UNUSED(void, glLightModelf, (GLenum pname, GLfloat param))
+SDL_PROC_UNUSED(void, glLightModelfv, (GLenum pname, const GLfloat *params))
+SDL_PROC_UNUSED(void, glLightModeli, (GLenum pname, GLint param))
+SDL_PROC_UNUSED(void, glLightModeliv, (GLenum pname, const GLint *params))
+SDL_PROC_UNUSED(void, glLightf, (GLenum light, GLenum pname, GLfloat param))
+SDL_PROC_UNUSED(void, glLightfv,
+                (GLenum light, GLenum pname, const GLfloat *params))
+SDL_PROC_UNUSED(void, glLighti, (GLenum light, GLenum pname, GLint param))
+SDL_PROC_UNUSED(void, glLightiv,
+                (GLenum light, GLenum pname, const GLint *params))
+SDL_PROC_UNUSED(void, glLineStipple, (GLint factor, GLushort pattern))
+SDL_PROC(void, glLineWidth, (GLfloat width))
+SDL_PROC_UNUSED(void, glListBase, (GLuint base))
+SDL_PROC(void, glLoadIdentity, (void))
+SDL_PROC_UNUSED(void, glLoadMatrixd, (const GLdouble *m))
+SDL_PROC_UNUSED(void, glLoadMatrixf, (const GLfloat *m))
+SDL_PROC_UNUSED(void, glLoadName, (GLuint name))
+SDL_PROC_UNUSED(void, glLogicOp, (GLenum opcode))
+SDL_PROC_UNUSED(void, glMap1d,
+                (GLenum target, GLdouble u1, GLdouble u2, GLint stride,
+                 GLint order, const GLdouble *points))
+SDL_PROC_UNUSED(void, glMap1f,
+                (GLenum target, GLfloat u1, GLfloat u2, GLint stride,
+                 GLint order, const GLfloat *points))
+SDL_PROC_UNUSED(void, glMap2d,
+                (GLenum target, GLdouble u1, GLdouble u2, GLint ustride,
+                 GLint uorder, GLdouble v1, GLdouble v2, GLint vstride,
+                 GLint vorder, const GLdouble *points))
+SDL_PROC_UNUSED(void, glMap2f,
+                (GLenum target, GLfloat u1, GLfloat u2, GLint ustride,
+                 GLint uorder, GLfloat v1, GLfloat v2, GLint vstride,
+                 GLint vorder, const GLfloat *points))
+SDL_PROC_UNUSED(void, glMapGrid1d, (GLint un, GLdouble u1, GLdouble u2))
+SDL_PROC_UNUSED(void, glMapGrid1f, (GLint un, GLfloat u1, GLfloat u2))
+SDL_PROC_UNUSED(void, glMapGrid2d,
+                (GLint un, GLdouble u1, GLdouble u2, GLint vn, GLdouble v1,
+                 GLdouble v2))
+SDL_PROC_UNUSED(void, glMapGrid2f,
+                (GLint un, GLfloat u1, GLfloat u2, GLint vn, GLfloat v1,
+                 GLfloat v2))
+SDL_PROC_UNUSED(void, glMaterialf, (GLenum face, GLenum pname, GLfloat param))
+SDL_PROC_UNUSED(void, glMaterialfv,
+                (GLenum face, GLenum pname, const GLfloat *params))
+SDL_PROC_UNUSED(void, glMateriali, (GLenum face, GLenum pname, GLint param))
+SDL_PROC_UNUSED(void, glMaterialiv,
+                (GLenum face, GLenum pname, const GLint *params))
+SDL_PROC(void, glMatrixMode, (GLenum mode))
+SDL_PROC_UNUSED(void, glMultMatrixd, (const GLdouble *m))
+SDL_PROC_UNUSED(void, glMultMatrixf, (const GLfloat *m))
+SDL_PROC_UNUSED(void, glNewList, (GLuint list, GLenum mode))
+SDL_PROC_UNUSED(void, glNormal3b, (GLbyte nx, GLbyte ny, GLbyte nz))
+SDL_PROC_UNUSED(void, glNormal3bv, (const GLbyte *v))
+SDL_PROC_UNUSED(void, glNormal3d, (GLdouble nx, GLdouble ny, GLdouble nz))
+SDL_PROC_UNUSED(void, glNormal3dv, (const GLdouble *v))
+SDL_PROC_UNUSED(void, glNormal3f, (GLfloat nx, GLfloat ny, GLfloat nz))
+SDL_PROC_UNUSED(void, glNormal3fv, (const GLfloat *v))
+SDL_PROC_UNUSED(void, glNormal3i, (GLint nx, GLint ny, GLint nz))
+SDL_PROC_UNUSED(void, glNormal3iv, (const GLint *v))
+SDL_PROC_UNUSED(void, glNormal3s, (GLshort nx, GLshort ny, GLshort nz))
+SDL_PROC_UNUSED(void, glNormal3sv, (const GLshort *v))
+SDL_PROC_UNUSED(void, glNormalPointer,
+                (GLenum type, GLsizei stride, const GLvoid *pointer))
+SDL_PROC(void, glOrtho,
+         (GLdouble left, GLdouble right, GLdouble bottom, GLdouble top,
+          GLdouble zNear, GLdouble zFar))
+SDL_PROC_UNUSED(void, glPassThrough, (GLfloat token))
+SDL_PROC_UNUSED(void, glPixelMapfv,
+                (GLenum map, GLsizei mapsize, const GLfloat *values))
+SDL_PROC_UNUSED(void, glPixelMapuiv,
+                (GLenum map, GLsizei mapsize, const GLuint *values))
+SDL_PROC_UNUSED(void, glPixelMapusv,
+                (GLenum map, GLsizei mapsize, const GLushort *values))
+SDL_PROC_UNUSED(void, glPixelStoref, (GLenum pname, GLfloat param))
+SDL_PROC(void, glPixelStorei, (GLenum pname, GLint param))
+SDL_PROC_UNUSED(void, glPixelTransferf, (GLenum pname, GLfloat param))
+SDL_PROC_UNUSED(void, glPixelTransferi, (GLenum pname, GLint param))
+SDL_PROC_UNUSED(void, glPixelZoom, (GLfloat xfactor, GLfloat yfactor))
+SDL_PROC(void, glPointSize, (GLfloat size))
+SDL_PROC_UNUSED(void, glPolygonMode, (GLenum face, GLenum mode))
+SDL_PROC_UNUSED(void, glPolygonOffset, (GLfloat factor, GLfloat units))
+SDL_PROC_UNUSED(void, glPolygonStipple, (const GLubyte *mask))
+SDL_PROC_UNUSED(void, glPopAttrib, (void))
+SDL_PROC_UNUSED(void, glPopClientAttrib, (void))
+SDL_PROC_UNUSED(void, glPopMatrix, (void))
+SDL_PROC_UNUSED(void, glPopName, (void))
+SDL_PROC_UNUSED(void, glPrioritizeTextures,
+                (GLsizei n, const GLuint *textures,
+                 const GLclampf *priorities))
+SDL_PROC_UNUSED(void, glPushAttrib, (GLbitfield mask))
+SDL_PROC_UNUSED(void, glPushClientAttrib, (GLbitfield mask))
+SDL_PROC_UNUSED(void, glPushMatrix, (void))
+SDL_PROC_UNUSED(void, glPushName, (GLuint name))
+SDL_PROC_UNUSED(void, glRasterPos2d, (GLdouble x, GLdouble y))
+SDL_PROC_UNUSED(void, glRasterPos2dv, (const GLdouble *v))
+SDL_PROC_UNUSED(void, glRasterPos2f, (GLfloat x, GLfloat y))
+SDL_PROC_UNUSED(void, glRasterPos2fv, (const GLfloat *v))
+SDL_PROC(void, glRasterPos2i, (GLint x, GLint y))
+SDL_PROC_UNUSED(void, glRasterPos2iv, (const GLint *v))
+SDL_PROC_UNUSED(void, glRasterPos2s, (GLshort x, GLshort y))
+SDL_PROC_UNUSED(void, glRasterPos2sv, (const GLshort *v))
+SDL_PROC_UNUSED(void, glRasterPos3d, (GLdouble x, GLdouble y, GLdouble z))
+SDL_PROC_UNUSED(void, glRasterPos3dv, (const GLdouble *v))
+SDL_PROC_UNUSED(void, glRasterPos3f, (GLfloat x, GLfloat y, GLfloat z))
+SDL_PROC_UNUSED(void, glRasterPos3fv, (const GLfloat *v))
+SDL_PROC_UNUSED(void, glRasterPos3i, (GLint x, GLint y, GLint z))
+SDL_PROC_UNUSED(void, glRasterPos3iv, (const GLint *v))
+SDL_PROC_UNUSED(void, glRasterPos3s, (GLshort x, GLshort y, GLshort z))
+SDL_PROC_UNUSED(void, glRasterPos3sv, (const GLshort *v))
+SDL_PROC_UNUSED(void, glRasterPos4d,
+                (GLdouble x, GLdouble y, GLdouble z, GLdouble w))
+SDL_PROC_UNUSED(void, glRasterPos4dv, (const GLdouble *v))
+SDL_PROC_UNUSED(void, glRasterPos4f,
+                (GLfloat x, GLfloat y, GLfloat z, GLfloat w))
+SDL_PROC_UNUSED(void, glRasterPos4fv, (const GLfloat *v))
+SDL_PROC_UNUSED(void, glRasterPos4i, (GLint x, GLint y, GLint z, GLint w))
+SDL_PROC_UNUSED(void, glRasterPos4iv, (const GLint *v))
+SDL_PROC_UNUSED(void, glRasterPos4s,
+                (GLshort x, GLshort y, GLshort z, GLshort w))
+SDL_PROC_UNUSED(void, glRasterPos4sv, (const GLshort *v))
+SDL_PROC(void, glReadBuffer, (GLenum mode))
+SDL_PROC(void, glReadPixels,
+         (GLint x, GLint y, GLsizei width, GLsizei height,
+          GLenum format, GLenum type, GLvoid *pixels))
+SDL_PROC_UNUSED(void, glRectd,
+                (GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2))
+SDL_PROC_UNUSED(void, glRectdv, (const GLdouble *v1, const GLdouble *v2))
+SDL_PROC(void, glRectf,
+         (GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2))
+SDL_PROC_UNUSED(void, glRectfv, (const GLfloat *v1, const GLfloat *v2))
+SDL_PROC_UNUSED(void, glRecti, (GLint x1, GLint y1, GLint x2, GLint y2))
+SDL_PROC_UNUSED(void, glRectiv, (const GLint *v1, const GLint *v2))
+SDL_PROC_UNUSED(void, glRects,
+                (GLshort x1, GLshort y1, GLshort x2, GLshort y2))
+SDL_PROC_UNUSED(void, glRectsv, (const GLshort *v1, const GLshort *v2))
+SDL_PROC_UNUSED(GLint, glRenderMode, (GLenum mode))
+SDL_PROC_UNUSED(void, glRotated,
+                (GLdouble angle, GLdouble x, GLdouble y, GLdouble z))
+SDL_PROC(void, glRotatef,
+         (GLfloat angle, GLfloat x, GLfloat y, GLfloat z))
+SDL_PROC_UNUSED(void, glScaled, (GLdouble x, GLdouble y, GLdouble z))
+SDL_PROC_UNUSED(void, glScalef, (GLfloat x, GLfloat y, GLfloat z))
+SDL_PROC(void, glScissor, (GLint x, GLint y, GLsizei width, GLsizei height))
+SDL_PROC_UNUSED(void, glSelectBuffer, (GLsizei size, GLuint *buffer))
+SDL_PROC(void, glShadeModel, (GLenum mode))
+SDL_PROC_UNUSED(void, glStencilFunc, (GLenum func, GLint ref, GLuint mask))
+SDL_PROC_UNUSED(void, glStencilMask, (GLuint mask))
+SDL_PROC_UNUSED(void, glStencilOp, (GLenum fail, GLenum zfail, GLenum zpass))
+SDL_PROC_UNUSED(void, glTexCoord1d, (GLdouble s))
+SDL_PROC_UNUSED(void, glTexCoord1dv, (const GLdouble *v))
+SDL_PROC_UNUSED(void, glTexCoord1f, (GLfloat s))
+SDL_PROC_UNUSED(void, glTexCoord1fv, (const GLfloat *v))
+SDL_PROC_UNUSED(void, glTexCoord1i, (GLint s))
+SDL_PROC_UNUSED(void, glTexCoord1iv, (const GLint *v))
+SDL_PROC_UNUSED(void, glTexCoord1s, (GLshort s))
+SDL_PROC_UNUSED(void, glTexCoord1sv, (const GLshort *v))
+SDL_PROC_UNUSED(void, glTexCoord2d, (GLdouble s, GLdouble t))
+SDL_PROC_UNUSED(void, glTexCoord2dv, (const GLdouble *v))
+SDL_PROC(void, glTexCoord2f, (GLfloat s, GLfloat t))
+SDL_PROC_UNUSED(void, glTexCoord2fv, (const GLfloat *v))
+SDL_PROC_UNUSED(void, glTexCoord2i, (GLint s, GLint t))
+SDL_PROC_UNUSED(void, glTexCoord2iv, (const GLint *v))
+SDL_PROC_UNUSED(void, glTexCoord2s, (GLshort s, GLshort t))
+SDL_PROC_UNUSED(void, glTexCoord2sv, (const GLshort *v))
+SDL_PROC_UNUSED(void, glTexCoord3d, (GLdouble s, GLdouble t, GLdouble r))
+SDL_PROC_UNUSED(void, glTexCoord3dv, (const GLdouble *v))
+SDL_PROC_UNUSED(void, glTexCoord3f, (GLfloat s, GLfloat t, GLfloat r))
+SDL_PROC_UNUSED(void, glTexCoord3fv, (const GLfloat *v))
+SDL_PROC_UNUSED(void, glTexCoord3i, (GLint s, GLint t, GLint r))
+SDL_PROC_UNUSED(void, glTexCoord3iv, (const GLint *v))
+SDL_PROC_UNUSED(void, glTexCoord3s, (GLshort s, GLshort t, GLshort r))
+SDL_PROC_UNUSED(void, glTexCoord3sv, (const GLshort *v))
+SDL_PROC_UNUSED(void, glTexCoord4d,
+                (GLdouble s, GLdouble t, GLdouble r, GLdouble q))
+SDL_PROC_UNUSED(void, glTexCoord4dv, (const GLdouble *v))
+SDL_PROC_UNUSED(void, glTexCoord4f,
+                (GLfloat s, GLfloat t, GLfloat r, GLfloat q))
+SDL_PROC_UNUSED(void, glTexCoord4fv, (const GLfloat *v))
+SDL_PROC_UNUSED(void, glTexCoord4i, (GLint s, GLint t, GLint r, GLint q))
+SDL_PROC_UNUSED(void, glTexCoord4iv, (const GLint *v))
+SDL_PROC_UNUSED(void, glTexCoord4s,
+                (GLshort s, GLshort t, GLshort r, GLshort q))
+SDL_PROC_UNUSED(void, glTexCoord4sv, (const GLshort *v))
+SDL_PROC(void, glTexCoordPointer,
+         (GLint size, GLenum type, GLsizei stride,
+          const GLvoid *pointer))
+SDL_PROC(void, glTexEnvf, (GLenum target, GLenum pname, GLfloat param))
+SDL_PROC_UNUSED(void, glTexEnvfv,
+                (GLenum target, GLenum pname, const GLfloat *params))
+SDL_PROC_UNUSED(void, glTexEnvi, (GLenum target, GLenum pname, GLint param))
+SDL_PROC_UNUSED(void, glTexEnviv,
+                (GLenum target, GLenum pname, const GLint *params))
+SDL_PROC_UNUSED(void, glTexGend, (GLenum coord, GLenum pname, GLdouble param))
+SDL_PROC_UNUSED(void, glTexGendv,
+                (GLenum coord, GLenum pname, const GLdouble *params))
+SDL_PROC_UNUSED(void, glTexGenf, (GLenum coord, GLenum pname, GLfloat param))
+SDL_PROC_UNUSED(void, glTexGenfv,
+                (GLenum coord, GLenum pname, const GLfloat *params))
+SDL_PROC_UNUSED(void, glTexGeni, (GLenum coord, GLenum pname, GLint param))
+SDL_PROC_UNUSED(void, glTexGeniv,
+                (GLenum coord, GLenum pname, const GLint *params))
+SDL_PROC_UNUSED(void, glTexImage1D,
+                (GLenum target, GLint level, GLint internalformat,
+                 GLsizei width, GLint border, GLenum format, GLenum type,
+                 const GLvoid *pixels))
+SDL_PROC(void, glTexImage2D,
+         (GLenum target, GLint level, GLint internalformat, GLsizei width,
+          GLsizei height, GLint border, GLenum format, GLenum type,
+          const GLvoid *pixels))
+SDL_PROC_UNUSED(void, glTexParameterf,
+                (GLenum target, GLenum pname, GLfloat param))
+SDL_PROC_UNUSED(void, glTexParameterfv,
+                (GLenum target, GLenum pname, const GLfloat *params))
+SDL_PROC(void, glTexParameteri, (GLenum target, GLenum pname, GLint param))
+SDL_PROC_UNUSED(void, glTexParameteriv,
+                (GLenum target, GLenum pname, const GLint *params))
+SDL_PROC_UNUSED(void, glTexSubImage1D,
+                (GLenum target, GLint level, GLint xoffset, GLsizei width,
+                 GLenum format, GLenum type, const GLvoid *pixels))
+SDL_PROC(void, glTexSubImage2D,
+         (GLenum target, GLint level, GLint xoffset, GLint yoffset,
+          GLsizei width, GLsizei height, GLenum format, GLenum type,
+          const GLvoid *pixels))
+SDL_PROC_UNUSED(void, glTranslated, (GLdouble x, GLdouble y, GLdouble z))
+SDL_PROC_UNUSED(void, glTranslatef, (GLfloat x, GLfloat y, GLfloat z))
+SDL_PROC_UNUSED(void, glVertex2d, (GLdouble x, GLdouble y))
+SDL_PROC_UNUSED(void, glVertex2dv, (const GLdouble *v))
+SDL_PROC(void, glVertex2f, (GLfloat x, GLfloat y))
+SDL_PROC_UNUSED(void, glVertex2fv, (const GLfloat *v))
+SDL_PROC_UNUSED(void, glVertex2i, (GLint x, GLint y))
+SDL_PROC_UNUSED(void, glVertex2iv, (const GLint *v))
+SDL_PROC_UNUSED(void, glVertex2s, (GLshort x, GLshort y))
+SDL_PROC_UNUSED(void, glVertex2sv, (const GLshort *v))
+SDL_PROC_UNUSED(void, glVertex3d, (GLdouble x, GLdouble y, GLdouble z))
+SDL_PROC_UNUSED(void, glVertex3dv, (const GLdouble *v))
+SDL_PROC_UNUSED(void, glVertex3f, (GLfloat x, GLfloat y, GLfloat z))
+SDL_PROC(void, glVertex3fv, (const GLfloat *v))
+SDL_PROC_UNUSED(void, glVertex3i, (GLint x, GLint y, GLint z))
+SDL_PROC_UNUSED(void, glVertex3iv, (const GLint *v))
+SDL_PROC_UNUSED(void, glVertex3s, (GLshort x, GLshort y, GLshort z))
+SDL_PROC_UNUSED(void, glVertex3sv, (const GLshort *v))
+SDL_PROC_UNUSED(void, glVertex4d,
+                (GLdouble x, GLdouble y, GLdouble z, GLdouble w))
+SDL_PROC_UNUSED(void, glVertex4dv, (const GLdouble *v))
+SDL_PROC_UNUSED(void, glVertex4f,
+                (GLfloat x, GLfloat y, GLfloat z, GLfloat w))
+SDL_PROC_UNUSED(void, glVertex4fv, (const GLfloat *v))
+SDL_PROC_UNUSED(void, glVertex4i, (GLint x, GLint y, GLint z, GLint w))
+SDL_PROC_UNUSED(void, glVertex4iv, (const GLint *v))
+SDL_PROC_UNUSED(void, glVertex4s,
+                (GLshort x, GLshort y, GLshort z, GLshort w))
+SDL_PROC_UNUSED(void, glVertex4sv, (const GLshort *v))
+SDL_PROC(void, glVertexPointer,
+         (GLint size, GLenum type, GLsizei stride,
+          const GLvoid *pointer))
+SDL_PROC(void, glViewport, (GLint x, GLint y, GLsizei width, GLsizei height))

external/sdl/SDL/src/render/opengl/SDL_shaders_gl.c

@@ -0,0 +1,578 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if defined(SDL_VIDEO_RENDER_OGL) && !defined(SDL_RENDER_DISABLED)
+
+#include <SDL3/SDL_opengl.h>
+#include "SDL_shaders_gl.h"
+
+/* OpenGL shader implementation */
+
+/* #define DEBUG_SHADERS */
+
+typedef struct
+{
+    GLhandleARB program;
+    GLhandleARB vert_shader;
+    GLhandleARB frag_shader;
+} GL_ShaderData;
+
+struct GL_ShaderContext
+{
+    GLenum (*glGetError)(void);
+
+    PFNGLATTACHOBJECTARBPROC glAttachObjectARB;
+    PFNGLCOMPILESHADERARBPROC glCompileShaderARB;
+    PFNGLCREATEPROGRAMOBJECTARBPROC glCreateProgramObjectARB;
+    PFNGLCREATESHADEROBJECTARBPROC glCreateShaderObjectARB;
+    PFNGLDELETEOBJECTARBPROC glDeleteObjectARB;
+    PFNGLGETINFOLOGARBPROC glGetInfoLogARB;
+    PFNGLGETOBJECTPARAMETERIVARBPROC glGetObjectParameterivARB;
+    PFNGLGETUNIFORMLOCATIONARBPROC glGetUniformLocationARB;
+    PFNGLLINKPROGRAMARBPROC glLinkProgramARB;
+    PFNGLSHADERSOURCEARBPROC glShaderSourceARB;
+    PFNGLUNIFORM1IARBPROC glUniform1iARB;
+    PFNGLUNIFORM1FARBPROC glUniform1fARB;
+    PFNGLUSEPROGRAMOBJECTARBPROC glUseProgramObjectARB;
+
+    SDL_bool GL_ARB_texture_rectangle_supported;
+
+    GL_ShaderData shaders[NUM_SHADERS];
+};
+
+/* *INDENT-OFF* */ /* clang-format off */
+
+#define COLOR_VERTEX_SHADER                                     \
+"varying vec4 v_color;\n"                                       \
+"\n"                                                            \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n" \
+"    v_color = gl_Color;\n"                                     \
+"}"                                                             \
+
+#define TEXTURE_VERTEX_SHADER                                   \
+"varying vec4 v_color;\n"                                       \
+"varying vec2 v_texCoord;\n"                                    \
+"\n"                                                            \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n" \
+"    v_color = gl_Color;\n"                                     \
+"    v_texCoord = vec2(gl_MultiTexCoord0);\n"                   \
+"}"                                                             \
+
+#define JPEG_SHADER_CONSTANTS                                   \
+"// YUV offset \n"                                              \
+"const vec3 offset = vec3(0, -0.501960814, -0.501960814);\n"    \
+"\n"                                                            \
+"// RGB coefficients \n"                                        \
+"const vec3 Rcoeff = vec3(1,  0.000,  1.402);\n"                \
+"const vec3 Gcoeff = vec3(1, -0.3441, -0.7141);\n"              \
+"const vec3 Bcoeff = vec3(1,  1.772,  0.000);\n"                \
+
+#define BT601_SHADER_CONSTANTS                                  \
+"// YUV offset \n"                                              \
+"const vec3 offset = vec3(-0.0627451017, -0.501960814, -0.501960814);\n" \
+"\n"                                                            \
+"// RGB coefficients \n"                                        \
+"const vec3 Rcoeff = vec3(1.1644,  0.000,  1.596);\n"           \
+"const vec3 Gcoeff = vec3(1.1644, -0.3918, -0.813);\n"          \
+"const vec3 Bcoeff = vec3(1.1644,  2.0172,  0.000);\n"          \
+
+#define BT709_SHADER_CONSTANTS                                  \
+"// YUV offset \n"                                              \
+"const vec3 offset = vec3(-0.0627451017, -0.501960814, -0.501960814);\n" \
+"\n"                                                            \
+"// RGB coefficients \n"                                        \
+"const vec3 Rcoeff = vec3(1.1644,  0.000,  1.7927);\n"          \
+"const vec3 Gcoeff = vec3(1.1644, -0.2132, -0.5329);\n"         \
+"const vec3 Bcoeff = vec3(1.1644,  2.1124,  0.000);\n"          \
+
+#define YUV_SHADER_PROLOGUE                                     \
+"varying vec4 v_color;\n"                                       \
+"varying vec2 v_texCoord;\n"                                    \
+"uniform sampler2D tex0; // Y \n"                               \
+"uniform sampler2D tex1; // U \n"                               \
+"uniform sampler2D tex2; // V \n"                               \
+"\n"                                                            \
+
+#define YUV_SHADER_BODY                                         \
+"\n"                                                            \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    vec2 tcoord;\n"                                            \
+"    vec3 yuv, rgb;\n"                                          \
+"\n"                                                            \
+"    // Get the Y value \n"                                     \
+"    tcoord = v_texCoord;\n"                                    \
+"    yuv.x = texture2D(tex0, tcoord).r;\n"                      \
+"\n"                                                            \
+"    // Get the U and V values \n"                              \
+"    tcoord *= UVCoordScale;\n"                                 \
+"    yuv.y = texture2D(tex1, tcoord).r;\n"                      \
+"    yuv.z = texture2D(tex2, tcoord).r;\n"                      \
+"\n"                                                            \
+"    // Do the color transform \n"                              \
+"    yuv += offset;\n"                                          \
+"    rgb.r = dot(yuv, Rcoeff);\n"                               \
+"    rgb.g = dot(yuv, Gcoeff);\n"                               \
+"    rgb.b = dot(yuv, Bcoeff);\n"                               \
+"\n"                                                            \
+"    // That was easy. :) \n"                                   \
+"    gl_FragColor = vec4(rgb, 1.0) * v_color;\n"                \
+"}"                                                             \
+
+#define NV12_SHADER_PROLOGUE                                    \
+"varying vec4 v_color;\n"                                       \
+"varying vec2 v_texCoord;\n"                                    \
+"uniform sampler2D tex0; // Y \n"                               \
+"uniform sampler2D tex1; // U/V \n"                             \
+"\n"                                                            \
+
+#define NV12_RA_SHADER_BODY                                     \
+"\n"                                                            \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    vec2 tcoord;\n"                                            \
+"    vec3 yuv, rgb;\n"                                          \
+"\n"                                                            \
+"    // Get the Y value \n"                                     \
+"    tcoord = v_texCoord;\n"                                    \
+"    yuv.x = texture2D(tex0, tcoord).r;\n"                      \
+"\n"                                                            \
+"    // Get the U and V values \n"                              \
+"    tcoord *= UVCoordScale;\n"                                 \
+"    yuv.yz = texture2D(tex1, tcoord).ra;\n"                    \
+"\n"                                                            \
+"    // Do the color transform \n"                              \
+"    yuv += offset;\n"                                          \
+"    rgb.r = dot(yuv, Rcoeff);\n"                               \
+"    rgb.g = dot(yuv, Gcoeff);\n"                               \
+"    rgb.b = dot(yuv, Bcoeff);\n"                               \
+"\n"                                                            \
+"    // That was easy. :) \n"                                   \
+"    gl_FragColor = vec4(rgb, 1.0) * v_color;\n"                \
+"}"                                                             \
+
+#define NV12_RG_SHADER_BODY                                     \
+"\n"                                                            \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    vec2 tcoord;\n"                                            \
+"    vec3 yuv, rgb;\n"                                          \
+"\n"                                                            \
+"    // Get the Y value \n"                                     \
+"    tcoord = v_texCoord;\n"                                    \
+"    yuv.x = texture2D(tex0, tcoord).r;\n"                      \
+"\n"                                                            \
+"    // Get the U and V values \n"                              \
+"    tcoord *= UVCoordScale;\n"                                 \
+"    yuv.yz = texture2D(tex1, tcoord).rg;\n"                    \
+"\n"                                                            \
+"    // Do the color transform \n"                              \
+"    yuv += offset;\n"                                          \
+"    rgb.r = dot(yuv, Rcoeff);\n"                               \
+"    rgb.g = dot(yuv, Gcoeff);\n"                               \
+"    rgb.b = dot(yuv, Bcoeff);\n"                               \
+"\n"                                                            \
+"    // That was easy. :) \n"                                   \
+"    gl_FragColor = vec4(rgb, 1.0) * v_color;\n"                \
+"}"                                                             \
+
+#define NV21_SHADER_PROLOGUE                                    \
+"varying vec4 v_color;\n"                                       \
+"varying vec2 v_texCoord;\n"                                    \
+"uniform sampler2D tex0; // Y \n"                               \
+"uniform sampler2D tex1; // U/V \n"                             \
+"\n"                                                            \
+
+#define NV21_SHADER_BODY                                        \
+"\n"                                                            \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    vec2 tcoord;\n"                                            \
+"    vec3 yuv, rgb;\n"                                          \
+"\n"                                                            \
+"    // Get the Y value \n"                                     \
+"    tcoord = v_texCoord;\n"                                    \
+"    yuv.x = texture2D(tex0, tcoord).r;\n"                      \
+"\n"                                                            \
+"    // Get the U and V values \n"                              \
+"    tcoord *= UVCoordScale;\n"                                 \
+"    yuv.yz = texture2D(tex1, tcoord).ar;\n"                    \
+"\n"                                                            \
+"    // Do the color transform \n"                              \
+"    yuv += offset;\n"                                          \
+"    rgb.r = dot(yuv, Rcoeff);\n"                               \
+"    rgb.g = dot(yuv, Gcoeff);\n"                               \
+"    rgb.b = dot(yuv, Bcoeff);\n"                               \
+"\n"                                                            \
+"    // That was easy. :) \n"                                   \
+"    gl_FragColor = vec4(rgb, 1.0) * v_color;\n"                \
+"}"                                                             \
+
+/*
+ * NOTE: Always use sampler2D, etc here. We'll #define them to the
+ *  texture_rectangle versions if we choose to use that extension.
+ */
+static const char *shader_source[NUM_SHADERS][2] = {
+    /* SHADER_NONE */
+    { NULL, NULL },
+
+    /* SHADER_SOLID */
+    {
+        /* vertex shader */
+        COLOR_VERTEX_SHADER,
+        /* fragment shader */
+"varying vec4 v_color;\n"
+"\n"
+"void main()\n"
+"{\n"
+"    gl_FragColor = v_color;\n"
+"}"
+    },
+
+    /* SHADER_RGB */
+    {
+        /* vertex shader */
+        TEXTURE_VERTEX_SHADER,
+        /* fragment shader */
+"varying vec4 v_color;\n"
+"varying vec2 v_texCoord;\n"
+"uniform sampler2D tex0;\n"
+"\n"
+"void main()\n"
+"{\n"
+"    gl_FragColor = texture2D(tex0, v_texCoord);\n"
+"    gl_FragColor.a = 1.0;\n"
+"    gl_FragColor *= v_color;\n"
+"}"
+    },
+
+    /* SHADER_RGBA */
+    {
+        /* vertex shader */
+        TEXTURE_VERTEX_SHADER,
+        /* fragment shader */
+"varying vec4 v_color;\n"
+"varying vec2 v_texCoord;\n"
+"uniform sampler2D tex0;\n"
+"\n"
+"void main()\n"
+"{\n"
+"    gl_FragColor = texture2D(tex0, v_texCoord) * v_color;\n"
+"}"
+    },
+#if SDL_HAVE_YUV
+    /* SHADER_YUV_JPEG */
+    {
+        /* vertex shader */
+        TEXTURE_VERTEX_SHADER,
+        /* fragment shader */
+        YUV_SHADER_PROLOGUE
+        JPEG_SHADER_CONSTANTS
+        YUV_SHADER_BODY
+    },
+    /* SHADER_YUV_BT601 */
+    {
+        /* vertex shader */
+        TEXTURE_VERTEX_SHADER,
+        /* fragment shader */
+        YUV_SHADER_PROLOGUE
+        BT601_SHADER_CONSTANTS
+        YUV_SHADER_BODY
+    },
+    /* SHADER_YUV_BT709 */
+    {
+        /* vertex shader */
+        TEXTURE_VERTEX_SHADER,
+        /* fragment shader */
+        YUV_SHADER_PROLOGUE
+        BT709_SHADER_CONSTANTS
+        YUV_SHADER_BODY
+    },
+    /* SHADER_NV12_JPEG */
+    {
+        /* vertex shader */
+        TEXTURE_VERTEX_SHADER,
+        /* fragment shader */
+        NV12_SHADER_PROLOGUE
+        JPEG_SHADER_CONSTANTS
+        NV12_RA_SHADER_BODY
+    },
+    /* SHADER_NV12_RA_BT601 */
+    {
+        /* vertex shader */
+        TEXTURE_VERTEX_SHADER,
+        /* fragment shader */
+        NV12_SHADER_PROLOGUE
+        BT601_SHADER_CONSTANTS
+        NV12_RA_SHADER_BODY
+    },
+    /* SHADER_NV12_RG_BT601 */
+    {
+        /* vertex shader */
+        TEXTURE_VERTEX_SHADER,
+        /* fragment shader */
+        NV12_SHADER_PROLOGUE
+        BT601_SHADER_CONSTANTS
+        NV12_RG_SHADER_BODY
+    },
+    /* SHADER_NV12_RA_BT709 */
+    {
+        /* vertex shader */
+        TEXTURE_VERTEX_SHADER,
+        /* fragment shader */
+        NV12_SHADER_PROLOGUE
+        BT709_SHADER_CONSTANTS
+        NV12_RA_SHADER_BODY
+    },
+    /* SHADER_NV12_RG_BT709 */
+    {
+        /* vertex shader */
+        TEXTURE_VERTEX_SHADER,
+        /* fragment shader */
+        NV12_SHADER_PROLOGUE
+        BT709_SHADER_CONSTANTS
+        NV12_RG_SHADER_BODY
+    },
+    /* SHADER_NV21_JPEG */
+    {
+        /* vertex shader */
+        TEXTURE_VERTEX_SHADER,
+        /* fragment shader */
+        NV21_SHADER_PROLOGUE
+        JPEG_SHADER_CONSTANTS
+        NV21_SHADER_BODY
+    },
+    /* SHADER_NV21_BT601 */
+    {
+        /* vertex shader */
+        TEXTURE_VERTEX_SHADER,
+        /* fragment shader */
+        NV21_SHADER_PROLOGUE
+        BT601_SHADER_CONSTANTS
+        NV21_SHADER_BODY
+    },
+    /* SHADER_NV21_BT709 */
+    {
+        /* vertex shader */
+        TEXTURE_VERTEX_SHADER,
+        /* fragment shader */
+        NV21_SHADER_PROLOGUE
+        BT709_SHADER_CONSTANTS
+        NV21_SHADER_BODY
+    },
+#endif /* SDL_HAVE_YUV */
+};
+
+/* *INDENT-ON* */ /* clang-format on */
+
+static SDL_bool CompileShader(GL_ShaderContext *ctx, GLhandleARB shader, const char *defines, const char *source)
+{
+    GLint status;
+    const char *sources[2];
+
+    sources[0] = defines;
+    sources[1] = source;
+
+    ctx->glShaderSourceARB(shader, SDL_arraysize(sources), sources, NULL);
+    ctx->glCompileShaderARB(shader);
+    ctx->glGetObjectParameterivARB(shader, GL_OBJECT_COMPILE_STATUS_ARB, &status);
+    if (status == 0) {
+        SDL_bool isstack;
+        GLint length;
+        char *info;
+
+        ctx->glGetObjectParameterivARB(shader, GL_OBJECT_INFO_LOG_LENGTH_ARB, &length);
+        info = SDL_small_alloc(char, length + 1, &isstack);
+        ctx->glGetInfoLogARB(shader, length, NULL, info);
+        SDL_LogError(SDL_LOG_CATEGORY_RENDER,
+                     "Failed to compile shader:\n%s%s\n%s", defines, source, info);
+#ifdef DEBUG_SHADERS
+        fprintf(stderr,
+                "Failed to compile shader:\n%s%s\n%s", defines, source, info);
+#endif
+        SDL_small_free(info, isstack);
+
+        return SDL_FALSE;
+    } else {
+        return SDL_TRUE;
+    }
+}
+
+static SDL_bool CompileShaderProgram(GL_ShaderContext *ctx, int index, GL_ShaderData *data)
+{
+    const int num_tmus_bound = 4;
+    const char *vert_defines = "";
+    const char *frag_defines = "";
+    int i;
+    GLint location;
+
+    if (index == SHADER_NONE) {
+        return SDL_TRUE;
+    }
+
+    ctx->glGetError();
+
+    /* Make sure we use the correct sampler type for our texture type */
+    if (ctx->GL_ARB_texture_rectangle_supported) {
+        frag_defines =
+            "#define sampler2D sampler2DRect\n"
+            "#define texture2D texture2DRect\n"
+            "#define UVCoordScale 0.5\n";
+    } else {
+        frag_defines =
+            "#define UVCoordScale 1.0\n";
+    }
+
+    /* Create one program object to rule them all */
+    data->program = ctx->glCreateProgramObjectARB();
+
+    /* Create the vertex shader */
+    data->vert_shader = ctx->glCreateShaderObjectARB(GL_VERTEX_SHADER_ARB);
+    if (!CompileShader(ctx, data->vert_shader, vert_defines, shader_source[index][0])) {
+        return SDL_FALSE;
+    }
+
+    /* Create the fragment shader */
+    data->frag_shader = ctx->glCreateShaderObjectARB(GL_FRAGMENT_SHADER_ARB);
+    if (!CompileShader(ctx, data->frag_shader, frag_defines, shader_source[index][1])) {
+        return SDL_FALSE;
+    }
+
+    /* ... and in the darkness bind them */
+    ctx->glAttachObjectARB(data->program, data->vert_shader);
+    ctx->glAttachObjectARB(data->program, data->frag_shader);
+    ctx->glLinkProgramARB(data->program);
+
+    /* Set up some uniform variables */
+    ctx->glUseProgramObjectARB(data->program);
+    for (i = 0; i < num_tmus_bound; ++i) {
+        char tex_name[10];
+        (void)SDL_snprintf(tex_name, SDL_arraysize(tex_name), "tex%d", i);
+        location = ctx->glGetUniformLocationARB(data->program, tex_name);
+        if (location >= 0) {
+            ctx->glUniform1iARB(location, i);
+        }
+    }
+    ctx->glUseProgramObjectARB(0);
+
+    return ctx->glGetError() == GL_NO_ERROR;
+}
+
+static void DestroyShaderProgram(GL_ShaderContext *ctx, GL_ShaderData *data)
+{
+    ctx->glDeleteObjectARB(data->vert_shader);
+    ctx->glDeleteObjectARB(data->frag_shader);
+    ctx->glDeleteObjectARB(data->program);
+}
+
+GL_ShaderContext *GL_CreateShaderContext(void)
+{
+    GL_ShaderContext *ctx;
+    SDL_bool shaders_supported;
+    int i;
+
+    ctx = (GL_ShaderContext *)SDL_calloc(1, sizeof(*ctx));
+    if (ctx == NULL) {
+        return NULL;
+    }
+
+    if (!SDL_GL_ExtensionSupported("GL_ARB_texture_non_power_of_two") &&
+        (SDL_GL_ExtensionSupported("GL_ARB_texture_rectangle") ||
+         SDL_GL_ExtensionSupported("GL_EXT_texture_rectangle"))) {
+        ctx->GL_ARB_texture_rectangle_supported = SDL_TRUE;
+    }
+
+    /* Check for shader support */
+    shaders_supported = SDL_FALSE;
+    if (SDL_GL_ExtensionSupported("GL_ARB_shader_objects") &&
+        SDL_GL_ExtensionSupported("GL_ARB_shading_language_100") &&
+        SDL_GL_ExtensionSupported("GL_ARB_vertex_shader") &&
+        SDL_GL_ExtensionSupported("GL_ARB_fragment_shader")) {
+        ctx->glGetError = (GLenum(*)(void))SDL_GL_GetProcAddress("glGetError");
+        ctx->glAttachObjectARB = (PFNGLATTACHOBJECTARBPROC)SDL_GL_GetProcAddress("glAttachObjectARB");
+        ctx->glCompileShaderARB = (PFNGLCOMPILESHADERARBPROC)SDL_GL_GetProcAddress("glCompileShaderARB");
+        ctx->glCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC)SDL_GL_GetProcAddress("glCreateProgramObjectARB");
+        ctx->glCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC)SDL_GL_GetProcAddress("glCreateShaderObjectARB");
+        ctx->glDeleteObjectARB = (PFNGLDELETEOBJECTARBPROC)SDL_GL_GetProcAddress("glDeleteObjectARB");
+        ctx->glGetInfoLogARB = (PFNGLGETINFOLOGARBPROC)SDL_GL_GetProcAddress("glGetInfoLogARB");
+        ctx->glGetObjectParameterivARB = (PFNGLGETOBJECTPARAMETERIVARBPROC)SDL_GL_GetProcAddress("glGetObjectParameterivARB");
+        ctx->glGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC)SDL_GL_GetProcAddress("glGetUniformLocationARB");
+        ctx->glLinkProgramARB = (PFNGLLINKPROGRAMARBPROC)SDL_GL_GetProcAddress("glLinkProgramARB");
+        ctx->glShaderSourceARB = (PFNGLSHADERSOURCEARBPROC)SDL_GL_GetProcAddress("glShaderSourceARB");
+        ctx->glUniform1iARB = (PFNGLUNIFORM1IARBPROC)SDL_GL_GetProcAddress("glUniform1iARB");
+        ctx->glUniform1fARB = (PFNGLUNIFORM1FARBPROC)SDL_GL_GetProcAddress("glUniform1fARB");
+        ctx->glUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC)SDL_GL_GetProcAddress("glUseProgramObjectARB");
+        if (ctx->glGetError &&
+            ctx->glAttachObjectARB &&
+            ctx->glCompileShaderARB &&
+            ctx->glCreateProgramObjectARB &&
+            ctx->glCreateShaderObjectARB &&
+            ctx->glDeleteObjectARB &&
+            ctx->glGetInfoLogARB &&
+            ctx->glGetObjectParameterivARB &&
+            ctx->glGetUniformLocationARB &&
+            ctx->glLinkProgramARB &&
+            ctx->glShaderSourceARB &&
+            ctx->glUniform1iARB &&
+            ctx->glUniform1fARB &&
+            ctx->glUseProgramObjectARB) {
+            shaders_supported = SDL_TRUE;
+        }
+    }
+
+    if (!shaders_supported) {
+        SDL_free(ctx);
+        return NULL;
+    }
+
+    /* Compile all the shaders */
+    for (i = 0; i < NUM_SHADERS; ++i) {
+        if (!CompileShaderProgram(ctx, i, &ctx->shaders[i])) {
+            GL_DestroyShaderContext(ctx);
+            return NULL;
+        }
+    }
+
+    /* We're done! */
+    return ctx;
+}
+
+void GL_SelectShader(GL_ShaderContext *ctx, GL_Shader shader)
+{
+    ctx->glUseProgramObjectARB(ctx->shaders[shader].program);
+}
+
+void GL_DestroyShaderContext(GL_ShaderContext *ctx)
+{
+    int i;
+
+    for (i = 0; i < NUM_SHADERS; ++i) {
+        DestroyShaderProgram(ctx, &ctx->shaders[i]);
+    }
+    SDL_free(ctx);
+}
+
+#endif /* SDL_VIDEO_RENDER_OGL && !SDL_RENDER_DISABLED */

external/sdl/SDL/src/render/opengl/SDL_shaders_gl.h

@@ -0,0 +1,58 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef SDL_shaders_gl_h_
+#define SDL_shaders_gl_h_
+
+#include "SDL_internal.h"
+
+/* OpenGL shader implementation */
+
+typedef enum
+{
+    SHADER_INVALID = -1,
+    SHADER_NONE,
+    SHADER_SOLID,
+    SHADER_RGB,
+    SHADER_RGBA,
+#if SDL_HAVE_YUV
+    SHADER_YUV_JPEG,
+    SHADER_YUV_BT601,
+    SHADER_YUV_BT709,
+    SHADER_NV12_JPEG,
+    SHADER_NV12_RA_BT601,
+    SHADER_NV12_RG_BT601,
+    SHADER_NV12_RA_BT709,
+    SHADER_NV12_RG_BT709,
+    SHADER_NV21_JPEG,
+    SHADER_NV21_BT601,
+    SHADER_NV21_BT709,
+#endif
+    NUM_SHADERS
+} GL_Shader;
+
+typedef struct GL_ShaderContext GL_ShaderContext;
+
+extern GL_ShaderContext *GL_CreateShaderContext(void);
+extern void GL_SelectShader(GL_ShaderContext *ctx, GL_Shader shader);
+extern void GL_DestroyShaderContext(GL_ShaderContext *ctx);
+
+#endif /* SDL_shaders_gl_h_ */

external/sdl/SDL/src/render/opengles2/SDL_gles2funcs.h

@@ -0,0 +1,76 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+SDL_PROC(void, glActiveTexture, (GLenum))
+SDL_PROC(void, glAttachShader, (GLuint, GLuint))
+SDL_PROC(void, glBindAttribLocation, (GLuint, GLuint, const char *))
+SDL_PROC(void, glBindTexture, (GLenum, GLuint))
+SDL_PROC(void, glBlendEquationSeparate, (GLenum, GLenum))
+SDL_PROC(void, glBlendFuncSeparate, (GLenum, GLenum, GLenum, GLenum))
+SDL_PROC(void, glClear, (GLbitfield))
+SDL_PROC(void, glClearColor, (GLclampf, GLclampf, GLclampf, GLclampf))
+SDL_PROC(void, glCompileShader, (GLuint))
+SDL_PROC(GLuint, glCreateProgram, (void))
+SDL_PROC(GLuint, glCreateShader, (GLenum))
+SDL_PROC(void, glDeleteProgram, (GLuint))
+SDL_PROC(void, glDeleteShader, (GLuint))
+SDL_PROC(void, glDeleteTextures, (GLsizei, const GLuint *))
+SDL_PROC(void, glDisable, (GLenum))
+SDL_PROC(void, glDisableVertexAttribArray, (GLuint))
+SDL_PROC(void, glDrawArrays, (GLenum, GLint, GLsizei))
+SDL_PROC(void, glEnable, (GLenum))
+SDL_PROC(void, glEnableVertexAttribArray, (GLuint))
+SDL_PROC(void, glFinish, (void))
+SDL_PROC(void, glGenFramebuffers, (GLsizei, GLuint *))
+SDL_PROC(void, glGenTextures, (GLsizei, GLuint *))
+SDL_PROC(const GLubyte *, glGetString, (GLenum))
+SDL_PROC(GLenum, glGetError, (void))
+SDL_PROC(void, glGetIntegerv, (GLenum, GLint *))
+SDL_PROC(void, glGetProgramiv, (GLuint, GLenum, GLint *))
+SDL_PROC(void, glGetShaderInfoLog, (GLuint, GLsizei, GLsizei *, char *))
+SDL_PROC(void, glGetShaderiv, (GLuint, GLenum, GLint *))
+SDL_PROC(GLint, glGetUniformLocation, (GLuint, const char *))
+SDL_PROC(void, glLinkProgram, (GLuint))
+SDL_PROC(void, glPixelStorei, (GLenum, GLint))
+SDL_PROC(void, glReadPixels, (GLint, GLint, GLsizei, GLsizei, GLenum, GLenum, GLvoid *))
+SDL_PROC(void, glScissor, (GLint, GLint, GLsizei, GLsizei))
+SDL_PROC(void, glShaderBinary, (GLsizei, const GLuint *, GLenum, const void *, GLsizei))
+SDL_PROC(void, glShaderSource, (GLuint, GLsizei, const GLchar *const *, const GLint *))
+SDL_PROC(void, glTexImage2D, (GLenum, GLint, GLint, GLsizei, GLsizei, GLint, GLenum, GLenum, const void *))
+SDL_PROC(void, glTexParameteri, (GLenum, GLenum, GLint))
+SDL_PROC(void, glTexSubImage2D, (GLenum, GLint, GLint, GLint, GLsizei, GLsizei, GLenum, GLenum, const GLvoid *))
+SDL_PROC(void, glUniform1i, (GLint, GLint))
+SDL_PROC(void, glUniform4f, (GLint, GLfloat, GLfloat, GLfloat, GLfloat))
+SDL_PROC(void, glUniformMatrix4fv, (GLint, GLsizei, GLboolean, const GLfloat *))
+SDL_PROC(void, glUseProgram, (GLuint))
+SDL_PROC(void, glVertexAttribPointer, (GLuint, GLint, GLenum, GLboolean, GLsizei, const void *))
+SDL_PROC(void, glViewport, (GLint, GLint, GLsizei, GLsizei))
+SDL_PROC(void, glBindFramebuffer, (GLenum, GLuint))
+SDL_PROC(void, glFramebufferTexture2D, (GLenum, GLenum, GLenum, GLuint, GLint))
+SDL_PROC(GLenum, glCheckFramebufferStatus, (GLenum))
+SDL_PROC(void, glDeleteFramebuffers, (GLsizei, const GLuint *))
+SDL_PROC(GLint, glGetAttribLocation, (GLuint, const GLchar *))
+SDL_PROC(void, glGetProgramInfoLog, (GLuint, GLsizei, GLsizei *, GLchar *))
+SDL_PROC(void, glGenBuffers, (GLsizei, GLuint *))
+SDL_PROC(void, glDeleteBuffers, (GLsizei, const GLuint *))
+SDL_PROC(void, glBindBuffer, (GLenum, GLuint))
+SDL_PROC(void, glBufferData, (GLenum, GLsizeiptr, const GLvoid *, GLenum))
+SDL_PROC(void, glBufferSubData, (GLenum, GLintptr, GLsizeiptr, const GLvoid *))

external/sdl/SDL/src/render/opengles2/SDL_shaders_gles2.c

@@ -0,0 +1,444 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if defined(SDL_VIDEO_RENDER_OGL_ES2) && !defined(SDL_RENDER_DISABLED)
+
+#include <SDL3/SDL_opengles2.h>
+#include "SDL_shaders_gles2.h"
+
+/* *INDENT-OFF* */ /* clang-format off */
+
+/*************************************************************************************************
+ * Vertex/fragment shader source                                                                 *
+ *************************************************************************************************/
+
+static const char GLES2_Fragment_Include_Best_Texture_Precision[] = \
+"#ifdef GL_FRAGMENT_PRECISION_HIGH\n"                           \
+"#define SDL_TEXCOORD_PRECISION highp\n"                        \
+"#else\n"                                                       \
+"#define SDL_TEXCOORD_PRECISION mediump\n"                      \
+"#endif\n"                                                      \
+"\n"                                                            \
+"precision mediump float;\n"                                    \
+"\n"                                                            \
+;
+
+static const char GLES2_Fragment_Include_Medium_Texture_Precision[] = \
+"#define SDL_TEXCOORD_PRECISION mediump\n"                      \
+"precision mediump float;\n"                                    \
+"\n"                                                            \
+;
+
+static const char GLES2_Fragment_Include_High_Texture_Precision[] = \
+"#define SDL_TEXCOORD_PRECISION highp\n"                        \
+"precision mediump float;\n"                                    \
+"\n"                                                            \
+;
+
+static const char GLES2_Fragment_Include_Undef_Precision[] =    \
+"#define mediump\n"                                             \
+"#define highp\n"                                               \
+"#define lowp\n"                                                \
+"#define SDL_TEXCOORD_PRECISION\n"                              \
+"\n"                                                            \
+;
+
+static const char GLES2_Vertex_Default[] =                      \
+"uniform mat4 u_projection;\n"                                  \
+"attribute vec2 a_position;\n"                                  \
+"attribute vec4 a_color;\n"                                     \
+"attribute vec2 a_texCoord;\n"                                  \
+"varying vec2 v_texCoord;\n"                                    \
+"varying vec4 v_color;\n"                                       \
+"\n"                                                            \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    v_texCoord = a_texCoord;\n"                                \
+"    gl_Position = u_projection * vec4(a_position, 0.0, 1.0);\n" \
+"    gl_PointSize = 1.0;\n"                                     \
+"    v_color = a_color;\n"                                      \
+"}\n"                                                           \
+;
+
+static const char GLES2_Fragment_Solid[] =                      \
+"varying mediump vec4 v_color;\n"                               \
+"\n"                                                            \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    gl_FragColor = v_color;\n"                                 \
+"}\n"                                                           \
+;
+
+static const char GLES2_Fragment_TextureABGR[] =                \
+"uniform sampler2D u_texture;\n"                                \
+"varying mediump vec4 v_color;\n"                               \
+"varying SDL_TEXCOORD_PRECISION vec2 v_texCoord;\n"             \
+"\n"                                                            \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    gl_FragColor = texture2D(u_texture, v_texCoord);\n"        \
+"    gl_FragColor *= v_color;\n"                                \
+"}\n"                                                           \
+;
+
+/* ARGB to ABGR conversion */
+static const char GLES2_Fragment_TextureARGB[] =                \
+"uniform sampler2D u_texture;\n"                                \
+"varying mediump vec4 v_color;\n"                               \
+"varying SDL_TEXCOORD_PRECISION vec2 v_texCoord;\n"             \
+"\n"                                                            \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    mediump vec4 abgr = texture2D(u_texture, v_texCoord);\n"   \
+"    gl_FragColor = abgr;\n"                                    \
+"    gl_FragColor.r = abgr.b;\n"                                \
+"    gl_FragColor.b = abgr.r;\n"                                \
+"    gl_FragColor *= v_color;\n"                                \
+"}\n"                                                           \
+;
+
+/* RGB to ABGR conversion */
+static const char GLES2_Fragment_TextureRGB[] =                 \
+"uniform sampler2D u_texture;\n"                                \
+"varying mediump vec4 v_color;\n"                               \
+"varying SDL_TEXCOORD_PRECISION vec2 v_texCoord;\n"             \
+"\n"                                                            \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    mediump vec4 abgr = texture2D(u_texture, v_texCoord);\n"   \
+"    gl_FragColor = abgr;\n"                                    \
+"    gl_FragColor.r = abgr.b;\n"                                \
+"    gl_FragColor.b = abgr.r;\n"                                \
+"    gl_FragColor.a = 1.0;\n"                                   \
+"    gl_FragColor *= v_color;\n"                                \
+"}\n"                                                           \
+;
+
+/* BGR to ABGR conversion */
+static const char GLES2_Fragment_TextureBGR[] =                 \
+"uniform sampler2D u_texture;\n"                                \
+"varying mediump vec4 v_color;\n"                               \
+"varying SDL_TEXCOORD_PRECISION vec2 v_texCoord;\n"             \
+"\n"                                                            \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    mediump vec4 abgr = texture2D(u_texture, v_texCoord);\n"   \
+"    gl_FragColor = abgr;\n"                                    \
+"    gl_FragColor.a = 1.0;\n"                                   \
+"    gl_FragColor *= v_color;\n"                                \
+"}\n"                                                           \
+;
+
+#if SDL_HAVE_YUV
+
+#define JPEG_SHADER_CONSTANTS                                   \
+"// YUV offset \n"                                              \
+"const vec3 offset = vec3(0, -0.501960814, -0.501960814);\n"    \
+"\n"                                                            \
+"// RGB coefficients \n"                                        \
+"const mat3 matrix = mat3( 1,       1,        1,\n"             \
+"                          0,      -0.3441,   1.772,\n"         \
+"                          1.402,  -0.7141,   0);\n"            \
+"\n"                                                            \
+
+#define BT601_SHADER_CONSTANTS                                  \
+"// YUV offset \n"                                              \
+"const vec3 offset = vec3(-0.0627451017, -0.501960814, -0.501960814);\n" \
+"\n"                                                            \
+"// RGB coefficients \n"                                        \
+"const mat3 matrix = mat3( 1.1644,  1.1644,   1.1644,\n"        \
+"                          0,      -0.3918,   2.0172,\n"        \
+"                          1.596,  -0.813,    0);\n"            \
+"\n"                                                            \
+
+#define BT709_SHADER_CONSTANTS                                  \
+"// YUV offset \n"                                              \
+"const vec3 offset = vec3(-0.0627451017, -0.501960814, -0.501960814);\n" \
+"\n"                                                            \
+"// RGB coefficients \n"                                        \
+"const mat3 matrix = mat3( 1.1644,  1.1644,   1.1644,\n"        \
+"                          0,      -0.2132,   2.1124,\n"        \
+"                          1.7927, -0.5329,   0);\n"            \
+"\n"                                                            \
+
+
+#define YUV_SHADER_PROLOGUE                                     \
+"uniform sampler2D u_texture;\n"                                \
+"uniform sampler2D u_texture_u;\n"                              \
+"uniform sampler2D u_texture_v;\n"                              \
+"varying mediump vec4 v_color;\n"                               \
+"varying SDL_TEXCOORD_PRECISION vec2 v_texCoord;\n"             \
+"\n"                                                            \
+
+#define YUV_SHADER_BODY                                         \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    mediump vec3 yuv;\n"                                       \
+"    lowp vec3 rgb;\n"                                          \
+"\n"                                                            \
+"    // Get the YUV values \n"                                  \
+"    yuv.x = texture2D(u_texture,   v_texCoord).r;\n"           \
+"    yuv.y = texture2D(u_texture_u, v_texCoord).r;\n"           \
+"    yuv.z = texture2D(u_texture_v, v_texCoord).r;\n"           \
+"\n"                                                            \
+"    // Do the color transform \n"                              \
+"    yuv += offset;\n"                                          \
+"    rgb = matrix * yuv;\n"                                     \
+"\n"                                                            \
+"    // That was easy. :) \n"                                   \
+"    gl_FragColor = vec4(rgb, 1);\n"                            \
+"    gl_FragColor *= v_color;\n"                                \
+"}"                                                             \
+
+#define NV12_RA_SHADER_BODY                                     \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    mediump vec3 yuv;\n"                                       \
+"    lowp vec3 rgb;\n"                                          \
+"\n"                                                            \
+"    // Get the YUV values \n"                                  \
+"    yuv.x = texture2D(u_texture,   v_texCoord).r;\n"           \
+"    yuv.yz = texture2D(u_texture_u, v_texCoord).ra;\n"         \
+"\n"                                                            \
+"    // Do the color transform \n"                              \
+"    yuv += offset;\n"                                          \
+"    rgb = matrix * yuv;\n"                                     \
+"\n"                                                            \
+"    // That was easy. :) \n"                                   \
+"    gl_FragColor = vec4(rgb, 1);\n"                            \
+"    gl_FragColor *= v_color;\n"                                \
+"}"                                                             \
+
+#define NV12_RG_SHADER_BODY                                     \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    mediump vec3 yuv;\n"                                       \
+"    lowp vec3 rgb;\n"                                          \
+"\n"                                                            \
+"    // Get the YUV values \n"                                  \
+"    yuv.x = texture2D(u_texture,   v_texCoord).r;\n"           \
+"    yuv.yz = texture2D(u_texture_u, v_texCoord).rg;\n"         \
+"\n"                                                            \
+"    // Do the color transform \n"                              \
+"    yuv += offset;\n"                                          \
+"    rgb = matrix * yuv;\n"                                     \
+"\n"                                                            \
+"    // That was easy. :) \n"                                   \
+"    gl_FragColor = vec4(rgb, 1);\n"                            \
+"    gl_FragColor *= v_color;\n"                                \
+"}"                                                             \
+
+#define NV21_SHADER_BODY                                        \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    mediump vec3 yuv;\n"                                       \
+"    lowp vec3 rgb;\n"                                          \
+"\n"                                                            \
+"    // Get the YUV values \n"                                  \
+"    yuv.x = texture2D(u_texture,   v_texCoord).r;\n"           \
+"    yuv.yz = texture2D(u_texture_u, v_texCoord).ar;\n"         \
+"\n"                                                            \
+"    // Do the color transform \n"                              \
+"    yuv += offset;\n"                                          \
+"    rgb = matrix * yuv;\n"                                     \
+"\n"                                                            \
+"    // That was easy. :) \n"                                   \
+"    gl_FragColor = vec4(rgb, 1);\n"                            \
+"    gl_FragColor *= v_color;\n"                                \
+"}"                                                             \
+
+/* YUV to ABGR conversion */
+static const char GLES2_Fragment_TextureYUVJPEG[] = \
+        YUV_SHADER_PROLOGUE \
+        JPEG_SHADER_CONSTANTS \
+        YUV_SHADER_BODY \
+;
+static const char GLES2_Fragment_TextureYUVBT601[] = \
+        YUV_SHADER_PROLOGUE \
+        BT601_SHADER_CONSTANTS \
+        YUV_SHADER_BODY \
+;
+static const char GLES2_Fragment_TextureYUVBT709[] = \
+        YUV_SHADER_PROLOGUE \
+        BT709_SHADER_CONSTANTS \
+        YUV_SHADER_BODY \
+;
+
+/* NV12 to ABGR conversion */
+static const char GLES2_Fragment_TextureNV12JPEG[] = \
+        YUV_SHADER_PROLOGUE \
+        JPEG_SHADER_CONSTANTS \
+        NV12_RA_SHADER_BODY \
+;
+static const char GLES2_Fragment_TextureNV12BT601_RA[] = \
+        YUV_SHADER_PROLOGUE \
+        BT601_SHADER_CONSTANTS \
+        NV12_RA_SHADER_BODY \
+;
+static const char GLES2_Fragment_TextureNV12BT601_RG[] = \
+        YUV_SHADER_PROLOGUE \
+        BT601_SHADER_CONSTANTS \
+        NV12_RG_SHADER_BODY \
+;
+static const char GLES2_Fragment_TextureNV12BT709_RA[] = \
+        YUV_SHADER_PROLOGUE \
+        BT709_SHADER_CONSTANTS \
+        NV12_RA_SHADER_BODY \
+;
+static const char GLES2_Fragment_TextureNV12BT709_RG[] = \
+        YUV_SHADER_PROLOGUE \
+        BT709_SHADER_CONSTANTS \
+        NV12_RG_SHADER_BODY \
+;
+
+/* NV21 to ABGR conversion */
+static const char GLES2_Fragment_TextureNV21JPEG[] = \
+        YUV_SHADER_PROLOGUE \
+        JPEG_SHADER_CONSTANTS \
+        NV21_SHADER_BODY \
+;
+static const char GLES2_Fragment_TextureNV21BT601[] = \
+        YUV_SHADER_PROLOGUE \
+        BT601_SHADER_CONSTANTS \
+        NV21_SHADER_BODY \
+;
+static const char GLES2_Fragment_TextureNV21BT709[] = \
+        YUV_SHADER_PROLOGUE \
+        BT709_SHADER_CONSTANTS \
+        NV21_SHADER_BODY \
+;
+#endif
+
+/* Custom Android video format texture */
+static const char GLES2_Fragment_TextureExternalOES_Prologue[] = \
+"#extension GL_OES_EGL_image_external : require\n"              \
+"\n"                                                            \
+;
+static const char GLES2_Fragment_TextureExternalOES[] =         \
+"uniform samplerExternalOES u_texture;\n"                       \
+"varying mediump vec4 v_color;\n"                               \
+"varying SDL_TEXCOORD_PRECISION vec2 v_texCoord;\n"             \
+"\n"                                                            \
+"void main()\n"                                                 \
+"{\n"                                                           \
+"    gl_FragColor = texture2D(u_texture, v_texCoord);\n"        \
+"    gl_FragColor *= v_color;\n"                                \
+"}\n"                                                           \
+;
+
+/* *INDENT-ON* */ /* clang-format on */
+
+/*************************************************************************************************
+ * Shader selector                                                                               *
+ *************************************************************************************************/
+
+const char *GLES2_GetShaderPrologue(GLES2_ShaderType type)
+{
+    switch (type) {
+    case GLES2_SHADER_FRAGMENT_TEXTURE_EXTERNAL_OES:
+        return GLES2_Fragment_TextureExternalOES_Prologue;
+    default:
+        return "";
+    }
+}
+
+const char *GLES2_GetShaderInclude(GLES2_ShaderIncludeType type)
+{
+    switch (type) {
+    case GLES2_SHADER_FRAGMENT_INCLUDE_UNDEF_PRECISION:
+        return GLES2_Fragment_Include_Undef_Precision;
+    case GLES2_SHADER_FRAGMENT_INCLUDE_BEST_TEXCOORD_PRECISION:
+        return GLES2_Fragment_Include_Best_Texture_Precision;
+    case GLES2_SHADER_FRAGMENT_INCLUDE_MEDIUM_TEXCOORD_PRECISION:
+        return GLES2_Fragment_Include_Medium_Texture_Precision;
+    case GLES2_SHADER_FRAGMENT_INCLUDE_HIGH_TEXCOORD_PRECISION:
+        return GLES2_Fragment_Include_High_Texture_Precision;
+    default:
+        return "";
+    }
+}
+
+GLES2_ShaderIncludeType GLES2_GetTexCoordPrecisionEnumFromHint(void)
+{
+    const char *texcoord_hint = SDL_GetHint("SDL_RENDER_OPENGLES2_TEXCOORD_PRECISION");
+    GLES2_ShaderIncludeType value = GLES2_SHADER_FRAGMENT_INCLUDE_BEST_TEXCOORD_PRECISION;
+    if (texcoord_hint) {
+        if (SDL_strcmp(texcoord_hint, "undefined") == 0) {
+            return GLES2_SHADER_FRAGMENT_INCLUDE_UNDEF_PRECISION;
+        }
+        if (SDL_strcmp(texcoord_hint, "high") == 0) {
+            return GLES2_SHADER_FRAGMENT_INCLUDE_HIGH_TEXCOORD_PRECISION;
+        }
+        if (SDL_strcmp(texcoord_hint, "medium") == 0) {
+            return GLES2_SHADER_FRAGMENT_INCLUDE_MEDIUM_TEXCOORD_PRECISION;
+        }
+    }
+    return value;
+}
+
+const char *GLES2_GetShader(GLES2_ShaderType type)
+{
+    switch (type) {
+    case GLES2_SHADER_VERTEX_DEFAULT:
+        return GLES2_Vertex_Default;
+    case GLES2_SHADER_FRAGMENT_SOLID:
+        return GLES2_Fragment_Solid;
+    case GLES2_SHADER_FRAGMENT_TEXTURE_ABGR:
+        return GLES2_Fragment_TextureABGR;
+    case GLES2_SHADER_FRAGMENT_TEXTURE_ARGB:
+        return GLES2_Fragment_TextureARGB;
+    case GLES2_SHADER_FRAGMENT_TEXTURE_RGB:
+        return GLES2_Fragment_TextureRGB;
+    case GLES2_SHADER_FRAGMENT_TEXTURE_BGR:
+        return GLES2_Fragment_TextureBGR;
+#if SDL_HAVE_YUV
+    case GLES2_SHADER_FRAGMENT_TEXTURE_YUV_JPEG:
+        return GLES2_Fragment_TextureYUVJPEG;
+    case GLES2_SHADER_FRAGMENT_TEXTURE_YUV_BT601:
+        return GLES2_Fragment_TextureYUVBT601;
+    case GLES2_SHADER_FRAGMENT_TEXTURE_YUV_BT709:
+        return GLES2_Fragment_TextureYUVBT709;
+    case GLES2_SHADER_FRAGMENT_TEXTURE_NV12_JPEG:
+        return GLES2_Fragment_TextureNV12JPEG;
+    case GLES2_SHADER_FRAGMENT_TEXTURE_NV12_RA_BT601:
+        return GLES2_Fragment_TextureNV12BT601_RA;
+    case GLES2_SHADER_FRAGMENT_TEXTURE_NV12_RG_BT601:
+        return GLES2_Fragment_TextureNV12BT601_RG;
+    case GLES2_SHADER_FRAGMENT_TEXTURE_NV12_RA_BT709:
+        return GLES2_Fragment_TextureNV12BT709_RA;
+    case GLES2_SHADER_FRAGMENT_TEXTURE_NV12_RG_BT709:
+        return GLES2_Fragment_TextureNV12BT709_RG;
+    case GLES2_SHADER_FRAGMENT_TEXTURE_NV21_JPEG:
+        return GLES2_Fragment_TextureNV21JPEG;
+    case GLES2_SHADER_FRAGMENT_TEXTURE_NV21_BT601:
+        return GLES2_Fragment_TextureNV21BT601;
+    case GLES2_SHADER_FRAGMENT_TEXTURE_NV21_BT709:
+        return GLES2_Fragment_TextureNV21BT709;
+#endif
+    case GLES2_SHADER_FRAGMENT_TEXTURE_EXTERNAL_OES:
+        return GLES2_Fragment_TextureExternalOES;
+    default:
+        return NULL;
+    }
+}
+
+#endif /* SDL_VIDEO_RENDER_OGL_ES2 && !SDL_RENDER_DISABLED */

external/sdl/SDL/src/render/opengles2/SDL_shaders_gles2.h

@@ -0,0 +1,71 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#ifndef SDL_shaders_gles2_h_
+#define SDL_shaders_gles2_h_
+
+#ifdef SDL_VIDEO_RENDER_OGL_ES2
+
+typedef enum
+{
+    GLES2_SHADER_FRAGMENT_INCLUDE_NONE = 0,
+    GLES2_SHADER_FRAGMENT_INCLUDE_BEST_TEXCOORD_PRECISION,
+    GLES2_SHADER_FRAGMENT_INCLUDE_MEDIUM_TEXCOORD_PRECISION,
+    GLES2_SHADER_FRAGMENT_INCLUDE_HIGH_TEXCOORD_PRECISION,
+    GLES2_SHADER_FRAGMENT_INCLUDE_UNDEF_PRECISION,
+    GLES2_SHADER_FRAGMENT_INCLUDE_COUNT
+} GLES2_ShaderIncludeType;
+
+typedef enum
+{
+    GLES2_SHADER_VERTEX_DEFAULT = 0,
+    GLES2_SHADER_FRAGMENT_SOLID,
+    GLES2_SHADER_FRAGMENT_TEXTURE_ABGR,
+    GLES2_SHADER_FRAGMENT_TEXTURE_ARGB,
+    GLES2_SHADER_FRAGMENT_TEXTURE_BGR,
+    GLES2_SHADER_FRAGMENT_TEXTURE_RGB,
+#if SDL_HAVE_YUV
+    GLES2_SHADER_FRAGMENT_TEXTURE_YUV_JPEG,
+    GLES2_SHADER_FRAGMENT_TEXTURE_YUV_BT601,
+    GLES2_SHADER_FRAGMENT_TEXTURE_YUV_BT709,
+    GLES2_SHADER_FRAGMENT_TEXTURE_NV12_JPEG,
+    GLES2_SHADER_FRAGMENT_TEXTURE_NV12_RA_BT601,
+    GLES2_SHADER_FRAGMENT_TEXTURE_NV12_RG_BT601,
+    GLES2_SHADER_FRAGMENT_TEXTURE_NV12_RA_BT709,
+    GLES2_SHADER_FRAGMENT_TEXTURE_NV12_RG_BT709,
+    GLES2_SHADER_FRAGMENT_TEXTURE_NV21_JPEG,
+    GLES2_SHADER_FRAGMENT_TEXTURE_NV21_BT601,
+    GLES2_SHADER_FRAGMENT_TEXTURE_NV21_BT709,
+#endif
+    /* Shaders beyond this point are optional and not cached at render creation */
+    GLES2_SHADER_FRAGMENT_TEXTURE_EXTERNAL_OES,
+    GLES2_SHADER_COUNT
+} GLES2_ShaderType;
+
+extern const char *GLES2_GetShaderPrologue(GLES2_ShaderType type);
+extern const char *GLES2_GetShaderInclude(GLES2_ShaderIncludeType type);
+extern const char *GLES2_GetShader(GLES2_ShaderType type);
+extern GLES2_ShaderIncludeType GLES2_GetTexCoordPrecisionEnumFromHint(void);
+
+#endif /* SDL_VIDEO_RENDER_OGL_ES2 */
+
+#endif /* SDL_shaders_gles2_h_ */

external/sdl/SDL/src/render/ps2/SDL_render_ps2.c

@@ -0,0 +1,679 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#ifdef SDL_VIDEO_RENDER_PS2
+
+#include "../SDL_sysrender.h"
+
+#include <kernel.h>
+#include <malloc.h>
+#include <gsKit.h>
+#include <dmaKit.h>
+#include <gsToolkit.h>
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeclaration-after-statement"
+#include <gsInline.h>
+#pragma GCC diagnostic pop
+
+/* turn black GS Screen */
+#define GS_BLACK GS_SETREG_RGBA(0x00, 0x00, 0x00, 0x80)
+/* Size of Persistent drawbuffer (Single Buffered) */
+#define RENDER_QUEUE_PER_POOLSIZE 1024 * 256 // 256K of persistent renderqueue
+/* Size of Oneshot drawbuffer (Double Buffered, so it uses this size * 2) */
+#define RENDER_QUEUE_OS_POOLSIZE 1024 * 1024 * 2 // 2048K of oneshot renderqueue
+
+typedef struct
+{
+    GSGLOBAL *gsGlobal;
+    uint64_t drawColor;
+    int32_t vsync_callback_id;
+    uint8_t vsync; /* 0 (Disabled), 1 (Enabled), 2 (Dynamic) */
+} PS2_RenderData;
+
+static int vsync_sema_id = 0;
+
+/* PRIVATE METHODS */
+static int vsync_handler()
+{
+    iSignalSema(vsync_sema_id);
+
+    ExitHandler();
+    return 0;
+}
+
+/* Copy of gsKit_sync_flip, but without the 'flip' */
+static void gsKit_sync(GSGLOBAL *gsGlobal)
+{
+    if (!gsGlobal->FirstFrame) {
+        WaitSema(vsync_sema_id);
+    }
+    while (PollSema(vsync_sema_id) >= 0)
+        ;
+}
+
+/* Copy of gsKit_sync_flip, but without the 'sync' */
+static void gsKit_flip(GSGLOBAL *gsGlobal)
+{
+    if (!gsGlobal->FirstFrame) {
+        if (gsGlobal->DoubleBuffering == GS_SETTING_ON) {
+            GS_SET_DISPFB2(gsGlobal->ScreenBuffer[gsGlobal->ActiveBuffer & 1] / 8192,
+                           gsGlobal->Width / 64, gsGlobal->PSM, 0, 0);
+
+            gsGlobal->ActiveBuffer ^= 1;
+        }
+    }
+
+    gsKit_setactive(gsGlobal);
+}
+
+static int PixelFormatToPS2PSM(Uint32 format)
+{
+    switch (format) {
+    case SDL_PIXELFORMAT_ABGR1555:
+        return GS_PSM_CT16;
+    default:
+        return GS_PSM_CT32;
+    }
+}
+
+static void PS2_WindowEvent(SDL_Renderer *renderer, const SDL_WindowEvent *event)
+{
+}
+
+static int PS2_CreateTexture(SDL_Renderer *renderer, SDL_Texture *texture)
+{
+    GSTEXTURE *ps2_tex = (GSTEXTURE *)SDL_calloc(1, sizeof(GSTEXTURE));
+
+    if (ps2_tex == NULL) {
+        return SDL_OutOfMemory();
+    }
+
+    ps2_tex->Width = texture->w;
+    ps2_tex->Height = texture->h;
+    ps2_tex->PSM = PixelFormatToPS2PSM(texture->format);
+    ps2_tex->Mem = SDL_aligned_alloc(128, gsKit_texture_size_ee(ps2_tex->Width, ps2_tex->Height, ps2_tex->PSM));
+
+    if (!ps2_tex->Mem) {
+        SDL_free(ps2_tex);
+        return SDL_OutOfMemory();
+    }
+
+    texture->driverdata = ps2_tex;
+
+    return 0;
+}
+
+static int PS2_LockTexture(SDL_Renderer *renderer, SDL_Texture *texture,
+                           const SDL_Rect *rect, void **pixels, int *pitch)
+{
+    GSTEXTURE *ps2_texture = (GSTEXTURE *)texture->driverdata;
+
+    *pixels =
+        (void *)((Uint8 *)ps2_texture->Mem + rect->y * ps2_texture->Width * SDL_BYTESPERPIXEL(texture->format) +
+                 rect->x * SDL_BYTESPERPIXEL(texture->format));
+    *pitch = ps2_texture->Width * SDL_BYTESPERPIXEL(texture->format);
+    return 0;
+}
+
+static void PS2_UnlockTexture(SDL_Renderer *renderer, SDL_Texture *texture)
+{
+    GSTEXTURE *ps2_texture = (GSTEXTURE *)texture->driverdata;
+    PS2_RenderData *data = (PS2_RenderData *)renderer->driverdata;
+
+    gsKit_TexManager_invalidate(data->gsGlobal, ps2_texture);
+}
+
+static int PS2_UpdateTexture(SDL_Renderer *renderer, SDL_Texture *texture,
+                             const SDL_Rect *rect, const void *pixels, int pitch)
+{
+    const Uint8 *src;
+    Uint8 *dst;
+    int row, length, dpitch;
+    src = pixels;
+
+    PS2_LockTexture(renderer, texture, rect, (void **)&dst, &dpitch);
+    length = rect->w * SDL_BYTESPERPIXEL(texture->format);
+    if (length == pitch && length == dpitch) {
+        SDL_memcpy(dst, src, length * rect->h);
+    } else {
+        for (row = 0; row < rect->h; ++row) {
+            SDL_memcpy(dst, src, length);
+            src += pitch;
+            dst += dpitch;
+        }
+    }
+
+    PS2_UnlockTexture(renderer, texture);
+
+    return 0;
+}
+
+static void PS2_SetTextureScaleMode(SDL_Renderer *renderer, SDL_Texture *texture, SDL_ScaleMode scaleMode)
+{
+    GSTEXTURE *ps2_texture = (GSTEXTURE *)texture->driverdata;
+    /*
+     set texture filtering according to scaleMode
+     supported hint values are nearest (0, default) or linear (1)
+     gskit scale mode is either GS_FILTER_NEAREST (good for tile-map)
+     or GS_FILTER_LINEAR (good for scaling)
+     */
+    uint32_t gsKitScaleMode = (scaleMode == SDL_SCALEMODE_NEAREST
+                                   ? GS_FILTER_NEAREST
+                                   : GS_FILTER_LINEAR);
+    ps2_texture->Filter = gsKitScaleMode;
+}
+
+static int PS2_SetRenderTarget(SDL_Renderer *renderer, SDL_Texture *texture)
+{
+    return 0;
+}
+
+static int PS2_QueueSetViewport(SDL_Renderer *renderer, SDL_RenderCommand *cmd)
+{
+    return 0; /* nothing to do in this backend. */
+}
+
+static int PS2_QueueDrawPoints(SDL_Renderer *renderer, SDL_RenderCommand *cmd, const SDL_FPoint *points, int count)
+{
+    PS2_RenderData *data = (PS2_RenderData *)renderer->driverdata;
+    GSPRIMPOINT *vertices = (GSPRIMPOINT *)SDL_AllocateRenderVertices(renderer, count * sizeof(GSPRIMPOINT), 4, &cmd->data.draw.first);
+    uint8_t colorR, colorG, colorB, colorA;
+    gs_rgbaq rgbaq;
+    int i;
+
+    if (vertices == NULL) {
+        return -1;
+    }
+
+    cmd->data.draw.count = count;
+
+    colorR = cmd->data.draw.r >> 1;
+    colorG = cmd->data.draw.g >> 1;
+    colorB = cmd->data.draw.b >> 1;
+    colorA = cmd->data.draw.a >> 1;
+    rgbaq = color_to_RGBAQ(colorR, colorG, colorB, colorA, 0.0f);
+
+    for (i = 0; i < count; i++, vertices++, points++) {
+        vertices->xyz2 = vertex_to_XYZ2(data->gsGlobal, points->x, points->y, 0);
+        vertices->rgbaq = rgbaq;
+    }
+    return 0;
+}
+
+static int PS2_QueueGeometry(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL_Texture *texture,
+                             const float *xy, int xy_stride, const SDL_Color *color, int color_stride, const float *uv, int uv_stride,
+                             int num_vertices, const void *indices, int num_indices, int size_indices,
+                             float scale_x, float scale_y)
+{
+    int i;
+    int count = indices ? num_indices : num_vertices;
+    PS2_RenderData *data = (PS2_RenderData *)renderer->driverdata;
+
+    cmd->data.draw.count = count;
+    size_indices = indices ? size_indices : 0;
+
+    if (texture) {
+        GSPRIMUVPOINT *vertices = (GSPRIMUVPOINT *) SDL_AllocateRenderVertices(renderer, count * sizeof(GSPRIMUVPOINT), 4, &cmd->data.draw.first);
+        GSTEXTURE *ps2_tex = (GSTEXTURE *) texture->driverdata;
+
+        if (vertices == NULL) {
+            return -1;
+        }
+
+        for (i = 0; i < count; i++) {
+            int j;
+            float *xy_;
+            float *uv_;
+            SDL_Color col_;
+            if (size_indices == 4) {
+                j = ((const Uint32 *)indices)[i];
+            } else if (size_indices == 2) {
+                j = ((const Uint16 *)indices)[i];
+            } else if (size_indices == 1) {
+                j = ((const Uint8 *)indices)[i];
+            } else {
+                j = i;
+            }
+
+            xy_ = (float *)((char *)xy + j * xy_stride);
+            col_ = *(SDL_Color *)((char *)color + j * color_stride);
+            uv_ = (float *)((char *)uv + j * uv_stride);
+
+            vertices->xyz2 = vertex_to_XYZ2(data->gsGlobal, xy_[0] * scale_x, xy_[1] * scale_y, 0);
+            vertices->rgbaq = color_to_RGBAQ(col_.r >> 1, col_.g >> 1, col_.b >> 1, col_.a >> 1, 0);
+            vertices->uv = vertex_to_UV(ps2_tex, uv_[0] * ps2_tex->Width, uv_[1] * ps2_tex->Height);
+
+            vertices++;
+        }
+
+    } else {
+        GSPRIMPOINT *vertices = (GSPRIMPOINT *)SDL_AllocateRenderVertices(renderer, count * sizeof(GSPRIMPOINT), 4, &cmd->data.draw.first);
+
+        if (vertices == NULL) {
+            return -1;
+        }
+
+        for (i = 0; i < count; i++) {
+            int j;
+            float *xy_;
+            SDL_Color col_;
+            if (size_indices == 4) {
+                j = ((const Uint32 *)indices)[i];
+            } else if (size_indices == 2) {
+                j = ((const Uint16 *)indices)[i];
+            } else if (size_indices == 1) {
+                j = ((const Uint8 *)indices)[i];
+            } else {
+                j = i;
+            }
+
+            xy_ = (float *)((char *)xy + j * xy_stride);
+            col_ = *(SDL_Color *)((char *)color + j * color_stride);
+
+            vertices->xyz2 = vertex_to_XYZ2(data->gsGlobal, xy_[0] * scale_x, xy_[1] * scale_y, 0);
+            vertices->rgbaq = color_to_RGBAQ(col_.r >> 1, col_.g >> 1, col_.b >> 1, col_.a >> 1, 0.0f);
+
+            vertices++;
+        }
+    }
+
+    return 0;
+}
+
+static int PS2_RenderSetViewPort(SDL_Renderer *renderer, SDL_RenderCommand *cmd)
+{
+    PS2_RenderData *data = (PS2_RenderData *)renderer->driverdata;
+    const SDL_Rect *viewport = &cmd->data.viewport.rect;
+
+    gsKit_set_display_offset(data->gsGlobal, viewport->x, viewport->y);
+    gsKit_set_scissor(data->gsGlobal, GS_SETREG_SCISSOR(viewport->x, viewport->y, viewport->w, viewport->h));
+
+    return 0;
+}
+
+static int PS2_RenderSetClipRect(SDL_Renderer *renderer, SDL_RenderCommand *cmd)
+{
+    PS2_RenderData *data = (PS2_RenderData *)renderer->driverdata;
+
+    const SDL_Rect *rect = &cmd->data.cliprect.rect;
+
+    if (cmd->data.cliprect.enabled) {
+        gsKit_set_scissor(data->gsGlobal, GS_SETREG_SCISSOR(rect->x, rect->y, rect->w, rect->h));
+    } else {
+        gsKit_set_scissor(data->gsGlobal, GS_SCISSOR_RESET);
+    }
+
+    return 0;
+}
+
+static int PS2_RenderSetDrawColor(SDL_Renderer *renderer, SDL_RenderCommand *cmd)
+{
+    int colorR, colorG, colorB, colorA;
+
+    PS2_RenderData *data = (PS2_RenderData *)renderer->driverdata;
+
+    colorR = (cmd->data.color.r) >> 1;
+    colorG = (cmd->data.color.g) >> 1;
+    colorB = (cmd->data.color.b) >> 1;
+    colorA = (cmd->data.color.a) >> 1;
+    data->drawColor = GS_SETREG_RGBAQ(colorR, colorG, colorB, colorA, 0x00);
+    return 0;
+}
+
+static int PS2_RenderClear(SDL_Renderer *renderer, SDL_RenderCommand *cmd)
+{
+    int colorR, colorG, colorB, colorA;
+
+    PS2_RenderData *data = (PS2_RenderData *)renderer->driverdata;
+
+    colorR = (cmd->data.color.r) >> 1;
+    colorG = (cmd->data.color.g) >> 1;
+    colorB = (cmd->data.color.b) >> 1;
+    colorA = (cmd->data.color.a) >> 1;
+    gsKit_clear(data->gsGlobal, GS_SETREG_RGBAQ(colorR, colorG, colorB, colorA, 0x00));
+
+    return 0;
+}
+
+static void PS2_SetBlendMode(PS2_RenderData *data, int blendMode)
+{
+#define A_COLOR_SOURCE 0
+#define A_COLOR_DEST   1
+#define A_COLOR_NULL   2
+#define A_ALPHA_SOURCE 0
+#define A_ALPHA_DEST   1
+#define A_ALPHA_FIX    2
+
+    switch (blendMode) {
+    case SDL_BLENDMODE_NONE:
+    {
+        data->gsGlobal->PrimAlphaEnable = GS_SETTING_OFF;
+        break;
+    }
+    case SDL_BLENDMODE_BLEND:
+    {
+        gsKit_set_primalpha(data->gsGlobal, GS_SETREG_ALPHA(A_COLOR_SOURCE, A_COLOR_DEST, A_ALPHA_SOURCE, A_COLOR_DEST, 0), 0);
+        data->gsGlobal->PrimAlphaEnable = GS_SETTING_ON;
+        break;
+    }
+    case SDL_BLENDMODE_ADD:
+    {
+        gsKit_set_primalpha(data->gsGlobal, GS_SETREG_ALPHA(A_COLOR_SOURCE, A_COLOR_NULL, A_ALPHA_FIX, A_COLOR_DEST, 0x80), 0);
+        data->gsGlobal->PrimAlphaEnable = GS_SETTING_ON;
+        break;
+    }
+    case SDL_BLENDMODE_MUL:
+    case SDL_BLENDMODE_MOD:
+    {
+        /* We don't fully support MOD and MUL, however this is the best we can do */
+        gsKit_set_primalpha(data->gsGlobal, GS_SETREG_ALPHA(A_COLOR_DEST, A_COLOR_NULL, A_ALPHA_SOURCE, A_COLOR_SOURCE, 0x80), 0);
+        data->gsGlobal->PrimAlphaEnable = GS_SETTING_ON;
+        break;
+    }
+    }
+}
+
+static int PS2_RenderGeometry(SDL_Renderer *renderer, void *vertices, SDL_RenderCommand *cmd)
+{
+    PS2_RenderData *data = (PS2_RenderData *)renderer->driverdata;
+    const size_t count = cmd->data.draw.count;
+
+    PS2_SetBlendMode(data, cmd->data.draw.blend);
+
+    if (cmd->data.draw.texture) {
+        const GSPRIMUVPOINT *verts = (GSPRIMUVPOINT *) (vertices + cmd->data.draw.first);
+        GSTEXTURE *ps2_tex = (GSTEXTURE *)cmd->data.draw.texture->driverdata;
+
+        gsKit_TexManager_bind(data->gsGlobal, ps2_tex);
+        gsKit_prim_list_triangle_goraud_texture_uv_3d(data->gsGlobal, ps2_tex, count, verts);
+    } else {
+        const GSPRIMPOINT *verts = (GSPRIMPOINT *)(vertices + cmd->data.draw.first);
+        gsKit_prim_list_triangle_gouraud_3d(data->gsGlobal, count, verts);
+    }
+
+    return 0;
+}
+
+int PS2_RenderLines(SDL_Renderer *renderer, void *vertices, SDL_RenderCommand *cmd)
+{
+    PS2_RenderData *data = (PS2_RenderData *)renderer->driverdata;
+    const size_t count = cmd->data.draw.count;
+    const GSPRIMPOINT *verts = (GSPRIMPOINT *)(vertices + cmd->data.draw.first);
+
+    PS2_SetBlendMode(data, cmd->data.draw.blend);
+    gsKit_prim_list_line_goraud_3d(data->gsGlobal, count, verts);
+
+    /* We're done! */
+    return 0;
+}
+
+int PS2_RenderPoints(SDL_Renderer *renderer, void *vertices, SDL_RenderCommand *cmd)
+{
+    PS2_RenderData *data = (PS2_RenderData *)renderer->driverdata;
+    const size_t count = cmd->data.draw.count;
+    const GSPRIMPOINT *verts = (GSPRIMPOINT *)(vertices + cmd->data.draw.first);
+
+    PS2_SetBlendMode(data, cmd->data.draw.blend);
+    gsKit_prim_list_points(data->gsGlobal, count, verts);
+
+    /* We're done! */
+    return 0;
+}
+
+static int PS2_RunCommandQueue(SDL_Renderer *renderer, SDL_RenderCommand *cmd, void *vertices, size_t vertsize)
+{
+    while (cmd) {
+        switch (cmd->command) {
+        case SDL_RENDERCMD_SETVIEWPORT:
+        {
+            PS2_RenderSetViewPort(renderer, cmd);
+            break;
+        }
+        case SDL_RENDERCMD_SETCLIPRECT:
+        {
+            PS2_RenderSetClipRect(renderer, cmd);
+            break;
+        }
+        case SDL_RENDERCMD_SETDRAWCOLOR:
+        {
+            PS2_RenderSetDrawColor(renderer, cmd);
+            break;
+        }
+        case SDL_RENDERCMD_CLEAR:
+        {
+            PS2_RenderClear(renderer, cmd);
+            break;
+        }
+        case SDL_RENDERCMD_DRAW_POINTS:
+        {
+            PS2_RenderPoints(renderer, vertices, cmd);
+            break;
+        }
+        case SDL_RENDERCMD_DRAW_LINES:
+        {
+            PS2_RenderLines(renderer, vertices, cmd);
+            break;
+        }
+        case SDL_RENDERCMD_FILL_RECTS: /* unused */
+            break;
+        case SDL_RENDERCMD_COPY: /* unused */
+            break;
+        case SDL_RENDERCMD_COPY_EX: /* unused */
+            break;
+        case SDL_RENDERCMD_GEOMETRY:
+        {
+            PS2_RenderGeometry(renderer, vertices, cmd);
+            break;
+        }
+        case SDL_RENDERCMD_NO_OP:
+            break;
+        }
+        cmd = cmd->next;
+    }
+    return 0;
+}
+
+static int PS2_RenderReadPixels(SDL_Renderer *renderer, const SDL_Rect *rect,
+                                Uint32 format, void *pixels, int pitch)
+{
+    return SDL_Unsupported();
+}
+
+static int PS2_RenderPresent(SDL_Renderer *renderer)
+{
+    PS2_RenderData *data = (PS2_RenderData *)renderer->driverdata;
+
+    if (data->gsGlobal->DoubleBuffering == GS_SETTING_OFF) {
+        if (data->vsync == 2) { // Dynamic
+            gsKit_sync(data->gsGlobal);
+        } else if (data->vsync == 1) {
+            gsKit_vsync_wait();
+        }
+        gsKit_queue_exec(data->gsGlobal);
+    } else {
+        gsKit_queue_exec(data->gsGlobal);
+        gsKit_finish();
+        if (data->vsync == 2) { // Dynamic
+            gsKit_sync(data->gsGlobal);
+        } else if (data->vsync == 1) {
+            gsKit_vsync_wait();
+        }
+        gsKit_flip(data->gsGlobal);
+    }
+    gsKit_TexManager_nextFrame(data->gsGlobal);
+    gsKit_clear(data->gsGlobal, GS_BLACK);
+    return 0;
+}
+
+static void PS2_DestroyTexture(SDL_Renderer *renderer, SDL_Texture *texture)
+{
+    GSTEXTURE *ps2_texture = (GSTEXTURE *)texture->driverdata;
+    PS2_RenderData *data = (PS2_RenderData *)renderer->driverdata;
+
+    if (data == NULL) {
+        return;
+    }
+
+    if (ps2_texture == NULL) {
+        return;
+    }
+
+    // Free from vram
+    gsKit_TexManager_free(data->gsGlobal, ps2_texture);
+
+    SDL_aligned_free(ps2_texture->Mem);
+    SDL_free(ps2_texture);
+    texture->driverdata = NULL;
+}
+
+static void PS2_DestroyRenderer(SDL_Renderer *renderer)
+{
+    PS2_RenderData *data = (PS2_RenderData *)renderer->driverdata;
+
+    if (data) {
+        gsKit_clear(data->gsGlobal, GS_BLACK);
+        gsKit_vram_clear(data->gsGlobal);
+        gsKit_deinit_global(data->gsGlobal);
+        gsKit_remove_vsync_handler(data->vsync_callback_id);
+
+        SDL_free(data);
+    }
+
+    if (vsync_sema_id >= 0) {
+        DeleteSema(vsync_sema_id);
+    }
+
+    SDL_free(renderer);
+}
+
+static int PS2_SetVSync(SDL_Renderer *renderer, const int vsync)
+{
+    PS2_RenderData *data = (PS2_RenderData *)renderer->driverdata;
+    SDL_bool dynamicVsync = SDL_GetHintBoolean(SDL_HINT_PS2_DYNAMIC_VSYNC, SDL_FALSE);
+    data->vsync = vsync ? (dynamicVsync ? 2 : 1) : 0;
+    return 0;
+}
+
+static SDL_Renderer *PS2_CreateRenderer(SDL_Window *window, Uint32 flags)
+{
+    SDL_Renderer *renderer;
+    PS2_RenderData *data;
+    GSGLOBAL *gsGlobal;
+    ee_sema_t sema;
+    SDL_bool dynamicVsync;
+
+    renderer = (SDL_Renderer *)SDL_calloc(1, sizeof(*renderer));
+    if (renderer == NULL) {
+        SDL_OutOfMemory();
+        return NULL;
+    }
+
+    data = (PS2_RenderData *)SDL_calloc(1, sizeof(*data));
+    if (data == NULL) {
+        PS2_DestroyRenderer(renderer);
+        SDL_OutOfMemory();
+        return NULL;
+    }
+
+    /* Specific gsKit init */
+    sema.init_count = 0;
+    sema.max_count = 1;
+    sema.option = 0;
+    vsync_sema_id = CreateSema(&sema);
+
+    gsGlobal = gsKit_init_global_custom(RENDER_QUEUE_OS_POOLSIZE, RENDER_QUEUE_PER_POOLSIZE);
+
+    gsGlobal->Mode = GS_MODE_NTSC;
+    gsGlobal->Height = 448;
+
+    gsGlobal->PSM = GS_PSM_CT24;
+    gsGlobal->PSMZ = GS_PSMZ_16S;
+    gsGlobal->ZBuffering = GS_SETTING_OFF;
+    gsGlobal->DoubleBuffering = GS_SETTING_ON;
+    gsGlobal->PrimAlphaEnable = GS_SETTING_ON;
+    gsGlobal->Dithering = GS_SETTING_OFF;
+
+    gsKit_set_primalpha(gsGlobal, GS_SETREG_ALPHA(0, 1, 0, 1, 0), 0);
+
+    dmaKit_init(D_CTRL_RELE_OFF, D_CTRL_MFD_OFF, D_CTRL_STS_UNSPEC, D_CTRL_STD_OFF, D_CTRL_RCYC_8, 1 << DMA_CHANNEL_GIF);
+    dmaKit_chan_init(DMA_CHANNEL_GIF);
+
+    gsKit_set_clamp(gsGlobal, GS_CMODE_REPEAT);
+
+    gsKit_vram_clear(gsGlobal);
+
+    gsKit_init_screen(gsGlobal);
+
+    gsKit_TexManager_init(gsGlobal);
+
+    data->vsync_callback_id = gsKit_add_vsync_handler(vsync_handler);
+
+    gsKit_mode_switch(gsGlobal, GS_ONESHOT);
+
+    gsKit_clear(gsGlobal, GS_BLACK);
+
+    data->gsGlobal = gsGlobal;
+    dynamicVsync = SDL_GetHintBoolean(SDL_HINT_PS2_DYNAMIC_VSYNC, SDL_FALSE);
+    data->vsync = flags & SDL_RENDERER_PRESENTVSYNC ? (dynamicVsync ? 2 : 1) : 0;
+
+    renderer->WindowEvent = PS2_WindowEvent;
+    renderer->CreateTexture = PS2_CreateTexture;
+    renderer->UpdateTexture = PS2_UpdateTexture;
+    renderer->LockTexture = PS2_LockTexture;
+    renderer->UnlockTexture = PS2_UnlockTexture;
+    renderer->SetTextureScaleMode = PS2_SetTextureScaleMode;
+    renderer->SetRenderTarget = PS2_SetRenderTarget;
+    renderer->QueueSetViewport = PS2_QueueSetViewport;
+    renderer->QueueSetDrawColor = PS2_QueueSetViewport;
+    renderer->QueueDrawPoints = PS2_QueueDrawPoints;
+    renderer->QueueDrawLines = PS2_QueueDrawPoints;
+    renderer->QueueGeometry = PS2_QueueGeometry;
+    renderer->RunCommandQueue = PS2_RunCommandQueue;
+    renderer->RenderReadPixels = PS2_RenderReadPixels;
+    renderer->RenderPresent = PS2_RenderPresent;
+    renderer->DestroyTexture = PS2_DestroyTexture;
+    renderer->DestroyRenderer = PS2_DestroyRenderer;
+    renderer->SetVSync = PS2_SetVSync;
+    renderer->info = PS2_RenderDriver.info;
+    renderer->driverdata = data;
+    renderer->window = window;
+
+    return renderer;
+}
+
+SDL_RenderDriver PS2_RenderDriver = {
+    .CreateRenderer = PS2_CreateRenderer,
+    .info = {
+        .name = "PS2 gsKit",
+        .flags = (SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC),
+        .num_texture_formats = 2,
+        .texture_formats = {
+            [0] = SDL_PIXELFORMAT_ABGR1555,
+            [1] = SDL_PIXELFORMAT_ABGR8888,
+        },
+        .max_texture_width = 1024,
+        .max_texture_height = 1024,
+    }
+};
+
+#endif /* SDL_VIDEO_RENDER_PS2 */

external/sdl/SDL/src/render/software/SDL_blendfillrect.c

@@ -0,0 +1,346 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if SDL_VIDEO_RENDER_SW && !defined(SDL_RENDER_DISABLED)
+
+#include "SDL_draw.h"
+#include "SDL_blendfillrect.h"
+
+static int SDL_BlendFillRect_RGB555(SDL_Surface *dst, const SDL_Rect *rect,
+                                    SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
+{
+    unsigned inva = 0xff - a;
+
+    switch (blendMode) {
+    case SDL_BLENDMODE_BLEND:
+        FILLRECT(Uint16, DRAW_SETPIXEL_BLEND_RGB555);
+        break;
+    case SDL_BLENDMODE_ADD:
+        FILLRECT(Uint16, DRAW_SETPIXEL_ADD_RGB555);
+        break;
+    case SDL_BLENDMODE_MOD:
+        FILLRECT(Uint16, DRAW_SETPIXEL_MOD_RGB555);
+        break;
+    case SDL_BLENDMODE_MUL:
+        FILLRECT(Uint16, DRAW_SETPIXEL_MUL_RGB555);
+        break;
+    default:
+        FILLRECT(Uint16, DRAW_SETPIXEL_RGB555);
+        break;
+    }
+    return 0;
+}
+
+static int SDL_BlendFillRect_RGB565(SDL_Surface *dst, const SDL_Rect *rect,
+                                    SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
+{
+    unsigned inva = 0xff - a;
+
+    switch (blendMode) {
+    case SDL_BLENDMODE_BLEND:
+        FILLRECT(Uint16, DRAW_SETPIXEL_BLEND_RGB565);
+        break;
+    case SDL_BLENDMODE_ADD:
+        FILLRECT(Uint16, DRAW_SETPIXEL_ADD_RGB565);
+        break;
+    case SDL_BLENDMODE_MOD:
+        FILLRECT(Uint16, DRAW_SETPIXEL_MOD_RGB565);
+        break;
+    case SDL_BLENDMODE_MUL:
+        FILLRECT(Uint16, DRAW_SETPIXEL_MUL_RGB565);
+        break;
+    default:
+        FILLRECT(Uint16, DRAW_SETPIXEL_RGB565);
+        break;
+    }
+    return 0;
+}
+
+static int SDL_BlendFillRect_XRGB8888(SDL_Surface *dst, const SDL_Rect *rect,
+                                    SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
+{
+    unsigned inva = 0xff - a;
+
+    switch (blendMode) {
+    case SDL_BLENDMODE_BLEND:
+        FILLRECT(Uint32, DRAW_SETPIXEL_BLEND_XRGB8888);
+        break;
+    case SDL_BLENDMODE_ADD:
+        FILLRECT(Uint32, DRAW_SETPIXEL_ADD_XRGB8888);
+        break;
+    case SDL_BLENDMODE_MOD:
+        FILLRECT(Uint32, DRAW_SETPIXEL_MOD_XRGB8888);
+        break;
+    case SDL_BLENDMODE_MUL:
+        FILLRECT(Uint32, DRAW_SETPIXEL_MUL_XRGB8888);
+        break;
+    default:
+        FILLRECT(Uint32, DRAW_SETPIXEL_XRGB8888);
+        break;
+    }
+    return 0;
+}
+
+static int SDL_BlendFillRect_ARGB8888(SDL_Surface *dst, const SDL_Rect *rect,
+                                      SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
+{
+    unsigned inva = 0xff - a;
+
+    switch (blendMode) {
+    case SDL_BLENDMODE_BLEND:
+        FILLRECT(Uint32, DRAW_SETPIXEL_BLEND_ARGB8888);
+        break;
+    case SDL_BLENDMODE_ADD:
+        FILLRECT(Uint32, DRAW_SETPIXEL_ADD_ARGB8888);
+        break;
+    case SDL_BLENDMODE_MOD:
+        FILLRECT(Uint32, DRAW_SETPIXEL_MOD_ARGB8888);
+        break;
+    case SDL_BLENDMODE_MUL:
+        FILLRECT(Uint32, DRAW_SETPIXEL_MUL_ARGB8888);
+        break;
+    default:
+        FILLRECT(Uint32, DRAW_SETPIXEL_ARGB8888);
+        break;
+    }
+    return 0;
+}
+
+static int SDL_BlendFillRect_RGB(SDL_Surface *dst, const SDL_Rect *rect,
+                                 SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
+{
+    SDL_PixelFormat *fmt = dst->format;
+    unsigned inva = 0xff - a;
+
+    switch (fmt->BytesPerPixel) {
+    case 2:
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            FILLRECT(Uint16, DRAW_SETPIXEL_BLEND_RGB);
+            break;
+        case SDL_BLENDMODE_ADD:
+            FILLRECT(Uint16, DRAW_SETPIXEL_ADD_RGB);
+            break;
+        case SDL_BLENDMODE_MOD:
+            FILLRECT(Uint16, DRAW_SETPIXEL_MOD_RGB);
+            break;
+        case SDL_BLENDMODE_MUL:
+            FILLRECT(Uint16, DRAW_SETPIXEL_MUL_RGB);
+            break;
+        default:
+            FILLRECT(Uint16, DRAW_SETPIXEL_RGB);
+            break;
+        }
+        return 0;
+    case 4:
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            FILLRECT(Uint32, DRAW_SETPIXEL_BLEND_RGB);
+            break;
+        case SDL_BLENDMODE_ADD:
+            FILLRECT(Uint32, DRAW_SETPIXEL_ADD_RGB);
+            break;
+        case SDL_BLENDMODE_MOD:
+            FILLRECT(Uint32, DRAW_SETPIXEL_MOD_RGB);
+            break;
+        case SDL_BLENDMODE_MUL:
+            FILLRECT(Uint32, DRAW_SETPIXEL_MUL_RGB);
+            break;
+        default:
+            FILLRECT(Uint32, DRAW_SETPIXEL_RGB);
+            break;
+        }
+        return 0;
+    default:
+        return SDL_Unsupported();
+    }
+}
+
+static int SDL_BlendFillRect_RGBA(SDL_Surface *dst, const SDL_Rect *rect,
+                                  SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
+{
+    SDL_PixelFormat *fmt = dst->format;
+    unsigned inva = 0xff - a;
+
+    switch (fmt->BytesPerPixel) {
+    case 4:
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            FILLRECT(Uint32, DRAW_SETPIXEL_BLEND_RGBA);
+            break;
+        case SDL_BLENDMODE_ADD:
+            FILLRECT(Uint32, DRAW_SETPIXEL_ADD_RGBA);
+            break;
+        case SDL_BLENDMODE_MOD:
+            FILLRECT(Uint32, DRAW_SETPIXEL_MOD_RGBA);
+            break;
+        case SDL_BLENDMODE_MUL:
+            FILLRECT(Uint32, DRAW_SETPIXEL_MUL_RGBA);
+            break;
+        default:
+            FILLRECT(Uint32, DRAW_SETPIXEL_RGBA);
+            break;
+        }
+        return 0;
+    default:
+        return SDL_Unsupported();
+    }
+}
+
+int SDL_BlendFillRect(SDL_Surface *dst, const SDL_Rect *rect,
+                      SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
+{
+    SDL_Rect clipped;
+
+    if (dst == NULL) {
+        return SDL_InvalidParamError("SDL_BlendFillRect(): dst");
+    }
+
+    /* This function doesn't work on surfaces < 8 bpp */
+    if (dst->format->BitsPerPixel < 8) {
+        return SDL_SetError("SDL_BlendFillRect(): Unsupported surface format");
+    }
+
+    /* If 'rect' == NULL, then fill the whole surface */
+    if (rect) {
+        /* Perform clipping */
+        if (!SDL_GetRectIntersection(rect, &dst->clip_rect, &clipped)) {
+            return 0;
+        }
+        rect = &clipped;
+    } else {
+        rect = &dst->clip_rect;
+    }
+
+    if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
+        r = DRAW_MUL(r, a);
+        g = DRAW_MUL(g, a);
+        b = DRAW_MUL(b, a);
+    }
+
+    switch (dst->format->BitsPerPixel) {
+    case 15:
+        switch (dst->format->Rmask) {
+        case 0x7C00:
+            return SDL_BlendFillRect_RGB555(dst, rect, blendMode, r, g, b, a);
+        }
+        break;
+    case 16:
+        switch (dst->format->Rmask) {
+        case 0xF800:
+            return SDL_BlendFillRect_RGB565(dst, rect, blendMode, r, g, b, a);
+        }
+        break;
+    case 32:
+        switch (dst->format->Rmask) {
+        case 0x00FF0000:
+            if (!dst->format->Amask) {
+                return SDL_BlendFillRect_XRGB8888(dst, rect, blendMode, r, g, b, a);
+            } else {
+                return SDL_BlendFillRect_ARGB8888(dst, rect, blendMode, r, g, b, a);
+            }
+            /* break; -Wunreachable-code-break */
+        }
+        break;
+    default:
+        break;
+    }
+
+    if (!dst->format->Amask) {
+        return SDL_BlendFillRect_RGB(dst, rect, blendMode, r, g, b, a);
+    } else {
+        return SDL_BlendFillRect_RGBA(dst, rect, blendMode, r, g, b, a);
+    }
+}
+
+int SDL_BlendFillRects(SDL_Surface *dst, const SDL_Rect *rects, int count,
+                       SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
+{
+    SDL_Rect rect;
+    int i;
+    int (*func)(SDL_Surface * dst, const SDL_Rect *rect,
+                SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a) = NULL;
+    int status = 0;
+
+    if (dst == NULL) {
+        return SDL_InvalidParamError("SDL_BlendFillRects(): dst");
+    }
+
+    /* This function doesn't work on surfaces < 8 bpp */
+    if (dst->format->BitsPerPixel < 8) {
+        return SDL_SetError("SDL_BlendFillRects(): Unsupported surface format");
+    }
+
+    if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
+        r = DRAW_MUL(r, a);
+        g = DRAW_MUL(g, a);
+        b = DRAW_MUL(b, a);
+    }
+
+    /* FIXME: Does this function pointer slow things down significantly? */
+    switch (dst->format->BitsPerPixel) {
+    case 15:
+        switch (dst->format->Rmask) {
+        case 0x7C00:
+            func = SDL_BlendFillRect_RGB555;
+        }
+        break;
+    case 16:
+        switch (dst->format->Rmask) {
+        case 0xF800:
+            func = SDL_BlendFillRect_RGB565;
+        }
+        break;
+    case 32:
+        switch (dst->format->Rmask) {
+        case 0x00FF0000:
+            if (!dst->format->Amask) {
+                func = SDL_BlendFillRect_XRGB8888;
+            } else {
+                func = SDL_BlendFillRect_ARGB8888;
+            }
+            break;
+        }
+        break;
+    default:
+        break;
+    }
+
+    if (func == NULL) {
+        if (!dst->format->Amask) {
+            func = SDL_BlendFillRect_RGB;
+        } else {
+            func = SDL_BlendFillRect_RGBA;
+        }
+    }
+
+    for (i = 0; i < count; ++i) {
+        /* Perform clipping */
+        if (!SDL_GetRectIntersection(&rects[i], &dst->clip_rect, &rect)) {
+            continue;
+        }
+        status = func(dst, &rect, blendMode, r, g, b, a);
+    }
+    return status;
+}
+
+#endif /* SDL_VIDEO_RENDER_SW && !SDL_RENDER_DISABLED */

external/sdl/SDL/src/render/software/SDL_blendfillrect.h

@@ -0,0 +1,30 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef SDL_blendfillrect_h_
+#define SDL_blendfillrect_h_
+
+#include "SDL_internal.h"
+
+extern int SDL_BlendFillRect(SDL_Surface *dst, const SDL_Rect *rect, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
+extern int SDL_BlendFillRects(SDL_Surface *dst, const SDL_Rect *rects, int count, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
+
+#endif /* SDL_blendfillrect_h_ */

external/sdl/SDL/src/render/software/SDL_blendline.c

@@ -0,0 +1,862 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if SDL_VIDEO_RENDER_SW && !defined(SDL_RENDER_DISABLED)
+
+#include "SDL_draw.h"
+#include "SDL_blendline.h"
+#include "SDL_blendpoint.h"
+
+static void SDL_BlendLine_RGB2(SDL_Surface *dst, int x1, int y1, int x2, int y2,
+                               SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
+                               SDL_bool draw_end)
+{
+    const SDL_PixelFormat *fmt = dst->format;
+    unsigned r, g, b, a, inva;
+
+    if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
+        r = DRAW_MUL(_r, _a);
+        g = DRAW_MUL(_g, _a);
+        b = DRAW_MUL(_b, _a);
+        a = _a;
+    } else {
+        r = _r;
+        g = _g;
+        b = _b;
+        a = _a;
+    }
+    inva = (a ^ 0xff);
+
+    if (y1 == y2) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            HLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            HLINE(Uint16, DRAW_SETPIXEL_ADD_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            HLINE(Uint16, DRAW_SETPIXEL_MOD_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            HLINE(Uint16, DRAW_SETPIXEL_MUL_RGB, draw_end);
+            break;
+        default:
+            HLINE(Uint16, DRAW_SETPIXEL_RGB, draw_end);
+            break;
+        }
+    } else if (x1 == x2) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            VLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            VLINE(Uint16, DRAW_SETPIXEL_ADD_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            VLINE(Uint16, DRAW_SETPIXEL_MOD_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            VLINE(Uint16, DRAW_SETPIXEL_MUL_RGB, draw_end);
+            break;
+        default:
+            VLINE(Uint16, DRAW_SETPIXEL_RGB, draw_end);
+            break;
+        }
+    } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            DLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            DLINE(Uint16, DRAW_SETPIXEL_ADD_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            DLINE(Uint16, DRAW_SETPIXEL_MOD_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            DLINE(Uint16, DRAW_SETPIXEL_MUL_RGB, draw_end);
+            break;
+        default:
+            DLINE(Uint16, DRAW_SETPIXEL_RGB, draw_end);
+            break;
+        }
+    } else {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY2_BLEND_RGB, DRAW_SETPIXELXY2_BLEND_RGB,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY2_ADD_RGB, DRAW_SETPIXELXY2_ADD_RGB,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY2_MOD_RGB, DRAW_SETPIXELXY2_MOD_RGB,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY2_MUL_RGB, DRAW_SETPIXELXY2_MUL_RGB,
+                   draw_end);
+            break;
+        default:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY2_RGB, DRAW_SETPIXELXY2_BLEND_RGB,
+                   draw_end);
+            break;
+        }
+    }
+}
+
+static void SDL_BlendLine_RGB555(SDL_Surface *dst, int x1, int y1, int x2, int y2,
+                                 SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
+                                 SDL_bool draw_end)
+{
+    unsigned r, g, b, a, inva;
+
+    if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
+        r = DRAW_MUL(_r, _a);
+        g = DRAW_MUL(_g, _a);
+        b = DRAW_MUL(_b, _a);
+        a = _a;
+    } else {
+        r = _r;
+        g = _g;
+        b = _b;
+        a = _a;
+    }
+    inva = (a ^ 0xff);
+
+    if (y1 == y2) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            HLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB555, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            HLINE(Uint16, DRAW_SETPIXEL_ADD_RGB555, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            HLINE(Uint16, DRAW_SETPIXEL_MOD_RGB555, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            HLINE(Uint16, DRAW_SETPIXEL_MUL_RGB555, draw_end);
+            break;
+        default:
+            HLINE(Uint16, DRAW_SETPIXEL_RGB555, draw_end);
+            break;
+        }
+    } else if (x1 == x2) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            VLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB555, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            VLINE(Uint16, DRAW_SETPIXEL_ADD_RGB555, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            VLINE(Uint16, DRAW_SETPIXEL_MOD_RGB555, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            VLINE(Uint16, DRAW_SETPIXEL_MUL_RGB555, draw_end);
+            break;
+        default:
+            VLINE(Uint16, DRAW_SETPIXEL_RGB555, draw_end);
+            break;
+        }
+    } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            DLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB555, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            DLINE(Uint16, DRAW_SETPIXEL_ADD_RGB555, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            DLINE(Uint16, DRAW_SETPIXEL_MOD_RGB555, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            DLINE(Uint16, DRAW_SETPIXEL_MUL_RGB555, draw_end);
+            break;
+        default:
+            DLINE(Uint16, DRAW_SETPIXEL_RGB555, draw_end);
+            break;
+        }
+    } else {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_BLEND_RGB555, DRAW_SETPIXELXY_BLEND_RGB555,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_ADD_RGB555, DRAW_SETPIXELXY_ADD_RGB555,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_MOD_RGB555, DRAW_SETPIXELXY_MOD_RGB555,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_MUL_RGB555, DRAW_SETPIXELXY_MUL_RGB555,
+                   draw_end);
+            break;
+        default:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_RGB555, DRAW_SETPIXELXY_BLEND_RGB555,
+                   draw_end);
+            break;
+        }
+    }
+}
+
+static void SDL_BlendLine_RGB565(SDL_Surface *dst, int x1, int y1, int x2, int y2,
+                                 SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
+                                 SDL_bool draw_end)
+{
+    unsigned r, g, b, a, inva;
+
+    if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
+        r = DRAW_MUL(_r, _a);
+        g = DRAW_MUL(_g, _a);
+        b = DRAW_MUL(_b, _a);
+        a = _a;
+    } else {
+        r = _r;
+        g = _g;
+        b = _b;
+        a = _a;
+    }
+    inva = (a ^ 0xff);
+
+    if (y1 == y2) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            HLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB565, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            HLINE(Uint16, DRAW_SETPIXEL_ADD_RGB565, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            HLINE(Uint16, DRAW_SETPIXEL_MOD_RGB565, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            HLINE(Uint16, DRAW_SETPIXEL_MUL_RGB565, draw_end);
+            break;
+        default:
+            HLINE(Uint16, DRAW_SETPIXEL_RGB565, draw_end);
+            break;
+        }
+    } else if (x1 == x2) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            VLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB565, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            VLINE(Uint16, DRAW_SETPIXEL_ADD_RGB565, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            VLINE(Uint16, DRAW_SETPIXEL_MOD_RGB565, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            VLINE(Uint16, DRAW_SETPIXEL_MUL_RGB565, draw_end);
+            break;
+        default:
+            VLINE(Uint16, DRAW_SETPIXEL_RGB565, draw_end);
+            break;
+        }
+    } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            DLINE(Uint16, DRAW_SETPIXEL_BLEND_RGB565, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            DLINE(Uint16, DRAW_SETPIXEL_ADD_RGB565, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            DLINE(Uint16, DRAW_SETPIXEL_MOD_RGB565, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            DLINE(Uint16, DRAW_SETPIXEL_MUL_RGB565, draw_end);
+            break;
+        default:
+            DLINE(Uint16, DRAW_SETPIXEL_RGB565, draw_end);
+            break;
+        }
+    } else {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_BLEND_RGB565, DRAW_SETPIXELXY_BLEND_RGB565,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_ADD_RGB565, DRAW_SETPIXELXY_ADD_RGB565,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_MOD_RGB565, DRAW_SETPIXELXY_MOD_RGB565,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_MUL_RGB565, DRAW_SETPIXELXY_MUL_RGB565,
+                   draw_end);
+            break;
+        default:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_RGB565, DRAW_SETPIXELXY_BLEND_RGB565,
+                   draw_end);
+            break;
+        }
+    }
+}
+
+static void SDL_BlendLine_RGB4(SDL_Surface *dst, int x1, int y1, int x2, int y2,
+                               SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
+                               SDL_bool draw_end)
+{
+    const SDL_PixelFormat *fmt = dst->format;
+    unsigned r, g, b, a, inva;
+
+    if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
+        r = DRAW_MUL(_r, _a);
+        g = DRAW_MUL(_g, _a);
+        b = DRAW_MUL(_b, _a);
+        a = _a;
+    } else {
+        r = _r;
+        g = _g;
+        b = _b;
+        a = _a;
+    }
+    inva = (a ^ 0xff);
+
+    if (y1 == y2) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            HLINE(Uint32, DRAW_SETPIXEL_BLEND_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            HLINE(Uint32, DRAW_SETPIXEL_ADD_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            HLINE(Uint32, DRAW_SETPIXEL_MOD_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            HLINE(Uint32, DRAW_SETPIXEL_MUL_RGB, draw_end);
+            break;
+        default:
+            HLINE(Uint32, DRAW_SETPIXEL_RGB, draw_end);
+            break;
+        }
+    } else if (x1 == x2) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            VLINE(Uint32, DRAW_SETPIXEL_BLEND_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            VLINE(Uint32, DRAW_SETPIXEL_ADD_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            VLINE(Uint32, DRAW_SETPIXEL_MOD_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            VLINE(Uint32, DRAW_SETPIXEL_MUL_RGB, draw_end);
+            break;
+        default:
+            VLINE(Uint32, DRAW_SETPIXEL_RGB, draw_end);
+            break;
+        }
+    } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            DLINE(Uint32, DRAW_SETPIXEL_BLEND_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            DLINE(Uint32, DRAW_SETPIXEL_ADD_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            DLINE(Uint32, DRAW_SETPIXEL_MOD_RGB, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            DLINE(Uint32, DRAW_SETPIXEL_MUL_RGB, draw_end);
+            break;
+        default:
+            DLINE(Uint32, DRAW_SETPIXEL_RGB, draw_end);
+            break;
+        }
+    } else {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY4_BLEND_RGB, DRAW_SETPIXELXY4_BLEND_RGB,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY4_ADD_RGB, DRAW_SETPIXELXY4_ADD_RGB,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY4_MOD_RGB, DRAW_SETPIXELXY4_MOD_RGB,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY4_MUL_RGB, DRAW_SETPIXELXY4_MUL_RGB,
+                   draw_end);
+            break;
+        default:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY4_RGB, DRAW_SETPIXELXY4_BLEND_RGB,
+                   draw_end);
+            break;
+        }
+    }
+}
+
+static void SDL_BlendLine_RGBA4(SDL_Surface *dst, int x1, int y1, int x2, int y2,
+                                SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
+                                SDL_bool draw_end)
+{
+    const SDL_PixelFormat *fmt = dst->format;
+    unsigned r, g, b, a, inva;
+
+    if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
+        r = DRAW_MUL(_r, _a);
+        g = DRAW_MUL(_g, _a);
+        b = DRAW_MUL(_b, _a);
+        a = _a;
+    } else {
+        r = _r;
+        g = _g;
+        b = _b;
+        a = _a;
+    }
+    inva = (a ^ 0xff);
+
+    if (y1 == y2) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            HLINE(Uint32, DRAW_SETPIXEL_BLEND_RGBA, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            HLINE(Uint32, DRAW_SETPIXEL_ADD_RGBA, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            HLINE(Uint32, DRAW_SETPIXEL_MOD_RGBA, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            HLINE(Uint32, DRAW_SETPIXEL_MUL_RGBA, draw_end);
+            break;
+        default:
+            HLINE(Uint32, DRAW_SETPIXEL_RGBA, draw_end);
+            break;
+        }
+    } else if (x1 == x2) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            VLINE(Uint32, DRAW_SETPIXEL_BLEND_RGBA, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            VLINE(Uint32, DRAW_SETPIXEL_ADD_RGBA, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            VLINE(Uint32, DRAW_SETPIXEL_MOD_RGBA, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            VLINE(Uint32, DRAW_SETPIXEL_MUL_RGBA, draw_end);
+            break;
+        default:
+            VLINE(Uint32, DRAW_SETPIXEL_RGBA, draw_end);
+            break;
+        }
+    } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            DLINE(Uint32, DRAW_SETPIXEL_BLEND_RGBA, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            DLINE(Uint32, DRAW_SETPIXEL_ADD_RGBA, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            DLINE(Uint32, DRAW_SETPIXEL_MOD_RGBA, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            DLINE(Uint32, DRAW_SETPIXEL_MUL_RGBA, draw_end);
+            break;
+        default:
+            DLINE(Uint32, DRAW_SETPIXEL_RGBA, draw_end);
+            break;
+        }
+    } else {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY4_BLEND_RGBA, DRAW_SETPIXELXY4_BLEND_RGBA,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY4_ADD_RGBA, DRAW_SETPIXELXY4_ADD_RGBA,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY4_MOD_RGBA, DRAW_SETPIXELXY4_MOD_RGBA,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY4_MUL_RGBA, DRAW_SETPIXELXY4_MUL_RGBA,
+                   draw_end);
+            break;
+        default:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY4_RGBA, DRAW_SETPIXELXY4_BLEND_RGBA,
+                   draw_end);
+            break;
+        }
+    }
+}
+
+static void SDL_BlendLine_XRGB8888(SDL_Surface *dst, int x1, int y1, int x2, int y2,
+                                 SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
+                                 SDL_bool draw_end)
+{
+    unsigned r, g, b, a, inva;
+
+    if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
+        r = DRAW_MUL(_r, _a);
+        g = DRAW_MUL(_g, _a);
+        b = DRAW_MUL(_b, _a);
+        a = _a;
+    } else {
+        r = _r;
+        g = _g;
+        b = _b;
+        a = _a;
+    }
+    inva = (a ^ 0xff);
+
+    if (y1 == y2) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            HLINE(Uint32, DRAW_SETPIXEL_BLEND_XRGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            HLINE(Uint32, DRAW_SETPIXEL_ADD_XRGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            HLINE(Uint32, DRAW_SETPIXEL_MOD_XRGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            HLINE(Uint32, DRAW_SETPIXEL_MUL_XRGB8888, draw_end);
+            break;
+        default:
+            HLINE(Uint32, DRAW_SETPIXEL_XRGB8888, draw_end);
+            break;
+        }
+    } else if (x1 == x2) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            VLINE(Uint32, DRAW_SETPIXEL_BLEND_XRGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            VLINE(Uint32, DRAW_SETPIXEL_ADD_XRGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            VLINE(Uint32, DRAW_SETPIXEL_MOD_XRGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            VLINE(Uint32, DRAW_SETPIXEL_MUL_XRGB8888, draw_end);
+            break;
+        default:
+            VLINE(Uint32, DRAW_SETPIXEL_XRGB8888, draw_end);
+            break;
+        }
+    } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            DLINE(Uint32, DRAW_SETPIXEL_BLEND_XRGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            DLINE(Uint32, DRAW_SETPIXEL_ADD_XRGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            DLINE(Uint32, DRAW_SETPIXEL_MOD_XRGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            DLINE(Uint32, DRAW_SETPIXEL_MUL_XRGB8888, draw_end);
+            break;
+        default:
+            DLINE(Uint32, DRAW_SETPIXEL_XRGB8888, draw_end);
+            break;
+        }
+    } else {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_BLEND_XRGB8888, DRAW_SETPIXELXY_BLEND_XRGB8888,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_ADD_XRGB8888, DRAW_SETPIXELXY_ADD_XRGB8888,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_MOD_XRGB8888, DRAW_SETPIXELXY_MOD_XRGB8888,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_MUL_XRGB8888, DRAW_SETPIXELXY_MUL_XRGB8888,
+                   draw_end);
+            break;
+        default:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_XRGB8888, DRAW_SETPIXELXY_BLEND_XRGB8888,
+                   draw_end);
+            break;
+        }
+    }
+}
+
+static void SDL_BlendLine_ARGB8888(SDL_Surface *dst, int x1, int y1, int x2, int y2,
+                                   SDL_BlendMode blendMode, Uint8 _r, Uint8 _g, Uint8 _b, Uint8 _a,
+                                   SDL_bool draw_end)
+{
+    unsigned r, g, b, a, inva;
+
+    if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
+        r = DRAW_MUL(_r, _a);
+        g = DRAW_MUL(_g, _a);
+        b = DRAW_MUL(_b, _a);
+        a = _a;
+    } else {
+        r = _r;
+        g = _g;
+        b = _b;
+        a = _a;
+    }
+    inva = (a ^ 0xff);
+
+    if (y1 == y2) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            HLINE(Uint32, DRAW_SETPIXEL_BLEND_ARGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            HLINE(Uint32, DRAW_SETPIXEL_ADD_ARGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            HLINE(Uint32, DRAW_SETPIXEL_MOD_ARGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            HLINE(Uint32, DRAW_SETPIXEL_MUL_ARGB8888, draw_end);
+            break;
+        default:
+            HLINE(Uint32, DRAW_SETPIXEL_ARGB8888, draw_end);
+            break;
+        }
+    } else if (x1 == x2) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            VLINE(Uint32, DRAW_SETPIXEL_BLEND_ARGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            VLINE(Uint32, DRAW_SETPIXEL_ADD_ARGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            VLINE(Uint32, DRAW_SETPIXEL_MOD_ARGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            VLINE(Uint32, DRAW_SETPIXEL_MUL_ARGB8888, draw_end);
+            break;
+        default:
+            VLINE(Uint32, DRAW_SETPIXEL_ARGB8888, draw_end);
+            break;
+        }
+    } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            DLINE(Uint32, DRAW_SETPIXEL_BLEND_ARGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            DLINE(Uint32, DRAW_SETPIXEL_ADD_ARGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            DLINE(Uint32, DRAW_SETPIXEL_MOD_ARGB8888, draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            DLINE(Uint32, DRAW_SETPIXEL_MUL_ARGB8888, draw_end);
+            break;
+        default:
+            DLINE(Uint32, DRAW_SETPIXEL_ARGB8888, draw_end);
+            break;
+        }
+    } else {
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_BLEND_ARGB8888, DRAW_SETPIXELXY_BLEND_ARGB8888,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_ADD:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_ADD_ARGB8888, DRAW_SETPIXELXY_ADD_ARGB8888,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_MOD:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_MOD_ARGB8888, DRAW_SETPIXELXY_MOD_ARGB8888,
+                   draw_end);
+            break;
+        case SDL_BLENDMODE_MUL:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_MUL_ARGB8888, DRAW_SETPIXELXY_MUL_ARGB8888,
+                   draw_end);
+            break;
+        default:
+            AALINE(x1, y1, x2, y2,
+                   DRAW_SETPIXELXY_ARGB8888, DRAW_SETPIXELXY_BLEND_ARGB8888,
+                   draw_end);
+            break;
+        }
+    }
+}
+
+typedef void (*BlendLineFunc)(SDL_Surface *dst,
+                              int x1, int y1, int x2, int y2,
+                              SDL_BlendMode blendMode,
+                              Uint8 r, Uint8 g, Uint8 b, Uint8 a,
+                              SDL_bool draw_end);
+
+static BlendLineFunc SDL_CalculateBlendLineFunc(const SDL_PixelFormat *fmt)
+{
+    switch (fmt->BytesPerPixel) {
+    case 2:
+        if (fmt->Rmask == 0x7C00) {
+            return SDL_BlendLine_RGB555;
+        } else if (fmt->Rmask == 0xF800) {
+            return SDL_BlendLine_RGB565;
+        } else {
+            return SDL_BlendLine_RGB2;
+        }
+        /* break; -Wunreachable-code-break */
+    case 4:
+        if (fmt->Rmask == 0x00FF0000) {
+            if (fmt->Amask) {
+                return SDL_BlendLine_ARGB8888;
+            } else {
+                return SDL_BlendLine_XRGB8888;
+            }
+        } else {
+            if (fmt->Amask) {
+                return SDL_BlendLine_RGBA4;
+            } else {
+                return SDL_BlendLine_RGB4;
+            }
+        }
+    }
+    return NULL;
+}
+
+int SDL_BlendLine(SDL_Surface *dst, int x1, int y1, int x2, int y2,
+                  SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
+{
+    BlendLineFunc func;
+
+    if (dst == NULL) {
+        return SDL_InvalidParamError("SDL_BlendLine(): dst");
+    }
+
+    func = SDL_CalculateBlendLineFunc(dst->format);
+    if (func == NULL) {
+        return SDL_SetError("SDL_BlendLine(): Unsupported surface format");
+    }
+
+    /* Perform clipping */
+    /* FIXME: We don't actually want to clip, as it may change line slope */
+    if (!SDL_GetRectAndLineIntersection(&dst->clip_rect, &x1, &y1, &x2, &y2)) {
+        return 0;
+    }
+
+    func(dst, x1, y1, x2, y2, blendMode, r, g, b, a, SDL_TRUE);
+    return 0;
+}
+
+int SDL_BlendLines(SDL_Surface *dst, const SDL_Point *points, int count,
+                   SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
+{
+    int i;
+    int x1, y1;
+    int x2, y2;
+    SDL_bool draw_end;
+    BlendLineFunc func;
+
+    if (dst == NULL) {
+        return SDL_SetError("SDL_BlendLines(): Passed NULL destination surface");
+    }
+
+    func = SDL_CalculateBlendLineFunc(dst->format);
+    if (func == NULL) {
+        return SDL_SetError("SDL_BlendLines(): Unsupported surface format");
+    }
+
+    for (i = 1; i < count; ++i) {
+        x1 = points[i - 1].x;
+        y1 = points[i - 1].y;
+        x2 = points[i].x;
+        y2 = points[i].y;
+
+        /* Perform clipping */
+        /* FIXME: We don't actually want to clip, as it may change line slope */
+        if (!SDL_GetRectAndLineIntersection(&dst->clip_rect, &x1, &y1, &x2, &y2)) {
+            continue;
+        }
+
+        /* Draw the end if it was clipped */
+        draw_end = (x2 != points[i].x || y2 != points[i].y);
+
+        func(dst, x1, y1, x2, y2, blendMode, r, g, b, a, draw_end);
+    }
+    if (points[0].x != points[count - 1].x || points[0].y != points[count - 1].y) {
+        SDL_BlendPoint(dst, points[count - 1].x, points[count - 1].y,
+                       blendMode, r, g, b, a);
+    }
+    return 0;
+}
+
+#endif /* SDL_VIDEO_RENDER_SW && !SDL_RENDER_DISABLED */

external/sdl/SDL/src/render/software/SDL_blendline.h

@@ -0,0 +1,30 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef SDL_blendline_h_
+#define SDL_blendline_h_
+
+#include "SDL_internal.h"
+
+extern int SDL_BlendLine(SDL_Surface *dst, int x1, int y1, int x2, int y2, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
+extern int SDL_BlendLines(SDL_Surface *dst, const SDL_Point *points, int count, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
+
+#endif /* SDL_blendline_h_ */

external/sdl/SDL/src/render/software/SDL_blendpoint.c

@@ -0,0 +1,351 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if SDL_VIDEO_RENDER_SW && !defined(SDL_RENDER_DISABLED)
+
+#include "SDL_draw.h"
+#include "SDL_blendpoint.h"
+
+static int SDL_BlendPoint_RGB555(SDL_Surface *dst, int x, int y, SDL_BlendMode blendMode, Uint8 r,
+                                 Uint8 g, Uint8 b, Uint8 a)
+{
+    unsigned inva = 0xff - a;
+
+    switch (blendMode) {
+    case SDL_BLENDMODE_BLEND:
+        DRAW_SETPIXELXY_BLEND_RGB555(x, y);
+        break;
+    case SDL_BLENDMODE_ADD:
+        DRAW_SETPIXELXY_ADD_RGB555(x, y);
+        break;
+    case SDL_BLENDMODE_MOD:
+        DRAW_SETPIXELXY_MOD_RGB555(x, y);
+        break;
+    case SDL_BLENDMODE_MUL:
+        DRAW_SETPIXELXY_MUL_RGB555(x, y);
+        break;
+    default:
+        DRAW_SETPIXELXY_RGB555(x, y);
+        break;
+    }
+    return 0;
+}
+
+static int SDL_BlendPoint_RGB565(SDL_Surface *dst, int x, int y, SDL_BlendMode blendMode, Uint8 r,
+                                 Uint8 g, Uint8 b, Uint8 a)
+{
+    unsigned inva = 0xff - a;
+
+    switch (blendMode) {
+    case SDL_BLENDMODE_BLEND:
+        DRAW_SETPIXELXY_BLEND_RGB565(x, y);
+        break;
+    case SDL_BLENDMODE_ADD:
+        DRAW_SETPIXELXY_ADD_RGB565(x, y);
+        break;
+    case SDL_BLENDMODE_MOD:
+        DRAW_SETPIXELXY_MOD_RGB565(x, y);
+        break;
+    case SDL_BLENDMODE_MUL:
+        DRAW_SETPIXELXY_MUL_RGB565(x, y);
+        break;
+    default:
+        DRAW_SETPIXELXY_RGB565(x, y);
+        break;
+    }
+    return 0;
+}
+
+static int SDL_BlendPoint_XRGB8888(SDL_Surface *dst, int x, int y, SDL_BlendMode blendMode, Uint8 r,
+                                 Uint8 g, Uint8 b, Uint8 a)
+{
+    unsigned inva = 0xff - a;
+
+    switch (blendMode) {
+    case SDL_BLENDMODE_BLEND:
+        DRAW_SETPIXELXY_BLEND_XRGB8888(x, y);
+        break;
+    case SDL_BLENDMODE_ADD:
+        DRAW_SETPIXELXY_ADD_XRGB8888(x, y);
+        break;
+    case SDL_BLENDMODE_MOD:
+        DRAW_SETPIXELXY_MOD_XRGB8888(x, y);
+        break;
+    case SDL_BLENDMODE_MUL:
+        DRAW_SETPIXELXY_MUL_XRGB8888(x, y);
+        break;
+    default:
+        DRAW_SETPIXELXY_XRGB8888(x, y);
+        break;
+    }
+    return 0;
+}
+
+static int SDL_BlendPoint_ARGB8888(SDL_Surface *dst, int x, int y, SDL_BlendMode blendMode,
+                                   Uint8 r, Uint8 g, Uint8 b, Uint8 a)
+{
+    unsigned inva = 0xff - a;
+
+    switch (blendMode) {
+    case SDL_BLENDMODE_BLEND:
+        DRAW_SETPIXELXY_BLEND_ARGB8888(x, y);
+        break;
+    case SDL_BLENDMODE_ADD:
+        DRAW_SETPIXELXY_ADD_ARGB8888(x, y);
+        break;
+    case SDL_BLENDMODE_MOD:
+        DRAW_SETPIXELXY_MOD_ARGB8888(x, y);
+        break;
+    case SDL_BLENDMODE_MUL:
+        DRAW_SETPIXELXY_MUL_ARGB8888(x, y);
+        break;
+    default:
+        DRAW_SETPIXELXY_ARGB8888(x, y);
+        break;
+    }
+    return 0;
+}
+
+static int SDL_BlendPoint_RGB(SDL_Surface *dst, int x, int y, SDL_BlendMode blendMode, Uint8 r,
+                              Uint8 g, Uint8 b, Uint8 a)
+{
+    SDL_PixelFormat *fmt = dst->format;
+    unsigned inva = 0xff - a;
+
+    switch (fmt->BytesPerPixel) {
+    case 2:
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            DRAW_SETPIXELXY2_BLEND_RGB(x, y);
+            break;
+        case SDL_BLENDMODE_ADD:
+            DRAW_SETPIXELXY2_ADD_RGB(x, y);
+            break;
+        case SDL_BLENDMODE_MOD:
+            DRAW_SETPIXELXY2_MOD_RGB(x, y);
+            break;
+        case SDL_BLENDMODE_MUL:
+            DRAW_SETPIXELXY2_MUL_RGB(x, y);
+            break;
+        default:
+            DRAW_SETPIXELXY2_RGB(x, y);
+            break;
+        }
+        return 0;
+    case 4:
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            DRAW_SETPIXELXY4_BLEND_RGB(x, y);
+            break;
+        case SDL_BLENDMODE_ADD:
+            DRAW_SETPIXELXY4_ADD_RGB(x, y);
+            break;
+        case SDL_BLENDMODE_MOD:
+            DRAW_SETPIXELXY4_MOD_RGB(x, y);
+            break;
+        case SDL_BLENDMODE_MUL:
+            DRAW_SETPIXELXY4_MUL_RGB(x, y);
+            break;
+        default:
+            DRAW_SETPIXELXY4_RGB(x, y);
+            break;
+        }
+        return 0;
+    default:
+        return SDL_Unsupported();
+    }
+}
+
+static int SDL_BlendPoint_RGBA(SDL_Surface *dst, int x, int y, SDL_BlendMode blendMode, Uint8 r,
+                               Uint8 g, Uint8 b, Uint8 a)
+{
+    SDL_PixelFormat *fmt = dst->format;
+    unsigned inva = 0xff - a;
+
+    switch (fmt->BytesPerPixel) {
+    case 4:
+        switch (blendMode) {
+        case SDL_BLENDMODE_BLEND:
+            DRAW_SETPIXELXY4_BLEND_RGBA(x, y);
+            break;
+        case SDL_BLENDMODE_ADD:
+            DRAW_SETPIXELXY4_ADD_RGBA(x, y);
+            break;
+        case SDL_BLENDMODE_MOD:
+            DRAW_SETPIXELXY4_MOD_RGBA(x, y);
+            break;
+        case SDL_BLENDMODE_MUL:
+            DRAW_SETPIXELXY4_MUL_RGBA(x, y);
+            break;
+        default:
+            DRAW_SETPIXELXY4_RGBA(x, y);
+            break;
+        }
+        return 0;
+    default:
+        return SDL_Unsupported();
+    }
+}
+
+int SDL_BlendPoint(SDL_Surface *dst, int x, int y, SDL_BlendMode blendMode, Uint8 r,
+                   Uint8 g, Uint8 b, Uint8 a)
+{
+    if (dst == NULL) {
+        return SDL_InvalidParamError("SDL_BlendPoint(): dst");
+    }
+
+    /* This function doesn't work on surfaces < 8 bpp */
+    if (dst->format->BitsPerPixel < 8) {
+        return SDL_SetError("SDL_BlendPoint(): Unsupported surface format");
+    }
+
+    /* Perform clipping */
+    if (x < dst->clip_rect.x || y < dst->clip_rect.y ||
+        x >= (dst->clip_rect.x + dst->clip_rect.w) ||
+        y >= (dst->clip_rect.y + dst->clip_rect.h)) {
+        return 0;
+    }
+
+    if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
+        r = DRAW_MUL(r, a);
+        g = DRAW_MUL(g, a);
+        b = DRAW_MUL(b, a);
+    }
+
+    switch (dst->format->BitsPerPixel) {
+    case 15:
+        switch (dst->format->Rmask) {
+        case 0x7C00:
+            return SDL_BlendPoint_RGB555(dst, x, y, blendMode, r, g, b, a);
+        }
+        break;
+    case 16:
+        switch (dst->format->Rmask) {
+        case 0xF800:
+            return SDL_BlendPoint_RGB565(dst, x, y, blendMode, r, g, b, a);
+        }
+        break;
+    case 32:
+        switch (dst->format->Rmask) {
+        case 0x00FF0000:
+            if (!dst->format->Amask) {
+                return SDL_BlendPoint_XRGB8888(dst, x, y, blendMode, r, g, b, a);
+            } else {
+                return SDL_BlendPoint_ARGB8888(dst, x, y, blendMode, r, g, b, a);
+            }
+            /* break; -Wunreachable-code-break */
+        }
+        break;
+    default:
+        break;
+    }
+
+    if (!dst->format->Amask) {
+        return SDL_BlendPoint_RGB(dst, x, y, blendMode, r, g, b, a);
+    } else {
+        return SDL_BlendPoint_RGBA(dst, x, y, blendMode, r, g, b, a);
+    }
+}
+
+int SDL_BlendPoints(SDL_Surface *dst, const SDL_Point *points, int count,
+                    SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
+{
+    int minx, miny;
+    int maxx, maxy;
+    int i;
+    int x, y;
+    int (*func)(SDL_Surface * dst, int x, int y,
+                SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a) = NULL;
+    int status = 0;
+
+    if (dst == NULL) {
+        return SDL_InvalidParamError("SDL_BlendPoints(): dst");
+    }
+
+    /* This function doesn't work on surfaces < 8 bpp */
+    if (dst->format->BitsPerPixel < 8) {
+        return SDL_SetError("SDL_BlendPoints(): Unsupported surface format");
+    }
+
+    if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) {
+        r = DRAW_MUL(r, a);
+        g = DRAW_MUL(g, a);
+        b = DRAW_MUL(b, a);
+    }
+
+    /* FIXME: Does this function pointer slow things down significantly? */
+    switch (dst->format->BitsPerPixel) {
+    case 15:
+        switch (dst->format->Rmask) {
+        case 0x7C00:
+            func = SDL_BlendPoint_RGB555;
+            break;
+        }
+        break;
+    case 16:
+        switch (dst->format->Rmask) {
+        case 0xF800:
+            func = SDL_BlendPoint_RGB565;
+            break;
+        }
+        break;
+    case 32:
+        switch (dst->format->Rmask) {
+        case 0x00FF0000:
+            if (!dst->format->Amask) {
+                func = SDL_BlendPoint_XRGB8888;
+            } else {
+                func = SDL_BlendPoint_ARGB8888;
+            }
+            break;
+        }
+        break;
+    default:
+        break;
+    }
+
+    if (func == NULL) {
+        if (!dst->format->Amask) {
+            func = SDL_BlendPoint_RGB;
+        } else {
+            func = SDL_BlendPoint_RGBA;
+        }
+    }
+
+    minx = dst->clip_rect.x;
+    maxx = dst->clip_rect.x + dst->clip_rect.w - 1;
+    miny = dst->clip_rect.y;
+    maxy = dst->clip_rect.y + dst->clip_rect.h - 1;
+
+    for (i = 0; i < count; ++i) {
+        x = points[i].x;
+        y = points[i].y;
+
+        if (x < minx || x > maxx || y < miny || y > maxy) {
+            continue;
+        }
+        status = func(dst, x, y, blendMode, r, g, b, a);
+    }
+    return status;
+}
+
+#endif /* SDL_VIDEO_RENDER_SW && !SDL_RENDER_DISABLED */

external/sdl/SDL/src/render/software/SDL_blendpoint.h

@@ -0,0 +1,30 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef SDL_blendpoint_h_
+#define SDL_blendpoint_h_
+
+#include "SDL_internal.h"
+
+extern int SDL_BlendPoint(SDL_Surface *dst, int x, int y, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
+extern int SDL_BlendPoints(SDL_Surface *dst, const SDL_Point *points, int count, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
+
+#endif /* SDL_blendpoint_h_ */

external/sdl/SDL/src/render/software/SDL_draw.h

@@ -0,0 +1,659 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#include "../../video/SDL_blit.h"
+
+/* This code assumes that r, g, b, a are the source color,
+ * and in the blend and add case, the RGB values are premultiplied by a.
+ */
+
+#define DRAW_MUL(_a, _b) (((unsigned)(_a) * (_b)) / 255)
+
+#define DRAW_FASTSETPIXEL(type) \
+    *pixel = (type)color
+
+#define DRAW_FASTSETPIXEL1 DRAW_FASTSETPIXEL(Uint8)
+#define DRAW_FASTSETPIXEL2 DRAW_FASTSETPIXEL(Uint16)
+#define DRAW_FASTSETPIXEL4 DRAW_FASTSETPIXEL(Uint32)
+
+#define DRAW_FASTSETPIXELXY(x, y, type, bpp, color) \
+    *(type *)((Uint8 *)dst->pixels + (y)*dst->pitch + (x)*bpp) = (type)color
+
+#define DRAW_FASTSETPIXELXY1(x, y) DRAW_FASTSETPIXELXY(x, y, Uint8, 1, color)
+#define DRAW_FASTSETPIXELXY2(x, y) DRAW_FASTSETPIXELXY(x, y, Uint16, 2, color)
+#define DRAW_FASTSETPIXELXY4(x, y) DRAW_FASTSETPIXELXY(x, y, Uint32, 4, color)
+
+#define DRAW_SETPIXEL(setpixel)                  \
+    do {                                         \
+        unsigned sr = r, sg = g, sb = b, sa = a; \
+        (void)sa;                                \
+        setpixel;                                \
+    } while (0)
+
+#define DRAW_SETPIXEL_BLEND(getpixel, setpixel) \
+    do {                                        \
+        unsigned sr, sg, sb, sa = 0xFF;         \
+        getpixel;                               \
+        sr = DRAW_MUL(inva, sr) + r;            \
+        sg = DRAW_MUL(inva, sg) + g;            \
+        sb = DRAW_MUL(inva, sb) + b;            \
+        sa = DRAW_MUL(inva, sa) + a;            \
+        setpixel;                               \
+    } while (0)
+
+#define DRAW_SETPIXEL_ADD(getpixel, setpixel) \
+    do {                                      \
+        unsigned sr, sg, sb, sa;              \
+        (void)sa;                             \
+        getpixel;                             \
+        sr += r;                              \
+        if (sr > 0xff)                        \
+            sr = 0xff;                        \
+        sg += g;                              \
+        if (sg > 0xff)                        \
+            sg = 0xff;                        \
+        sb += b;                              \
+        if (sb > 0xff)                        \
+            sb = 0xff;                        \
+        setpixel;                             \
+    } while (0)
+
+#define DRAW_SETPIXEL_MOD(getpixel, setpixel) \
+    do {                                      \
+        unsigned sr, sg, sb, sa;              \
+        (void)sa;                             \
+        getpixel;                             \
+        sr = DRAW_MUL(sr, r);                 \
+        sg = DRAW_MUL(sg, g);                 \
+        sb = DRAW_MUL(sb, b);                 \
+        setpixel;                             \
+    } while (0)
+
+#define DRAW_SETPIXEL_MUL(getpixel, setpixel)      \
+    do {                                           \
+        unsigned sr, sg, sb, sa;                   \
+        (void)sa;                                  \
+        getpixel;                                  \
+        sr = DRAW_MUL(sr, r) + DRAW_MUL(inva, sr); \
+        if (sr > 0xff)                             \
+            sr = 0xff;                             \
+        sg = DRAW_MUL(sg, g) + DRAW_MUL(inva, sg); \
+        if (sg > 0xff)                             \
+            sg = 0xff;                             \
+        sb = DRAW_MUL(sb, b) + DRAW_MUL(inva, sb); \
+        if (sb > 0xff)                             \
+            sb = 0xff;                             \
+        setpixel;                                  \
+    } while (0)
+
+#define DRAW_SETPIXELXY(x, y, type, bpp, op)                                     \
+    do {                                                                         \
+        type *pixel = (type *)((Uint8 *)dst->pixels + (y)*dst->pitch + (x)*bpp); \
+        op;                                                                      \
+    } while (0)
+
+/*
+ * Define draw operators for RGB555
+ */
+
+#define DRAW_SETPIXEL_RGB555 \
+    DRAW_SETPIXEL(RGB555_FROM_RGB(*pixel, sr, sg, sb))
+
+#define DRAW_SETPIXEL_BLEND_RGB555                           \
+    DRAW_SETPIXEL_BLEND(RGB_FROM_RGB555(*pixel, sr, sg, sb), \
+                        RGB555_FROM_RGB(*pixel, sr, sg, sb))
+
+#define DRAW_SETPIXEL_ADD_RGB555                           \
+    DRAW_SETPIXEL_ADD(RGB_FROM_RGB555(*pixel, sr, sg, sb), \
+                      RGB555_FROM_RGB(*pixel, sr, sg, sb))
+
+#define DRAW_SETPIXEL_MOD_RGB555                           \
+    DRAW_SETPIXEL_MOD(RGB_FROM_RGB555(*pixel, sr, sg, sb), \
+                      RGB555_FROM_RGB(*pixel, sr, sg, sb))
+
+#define DRAW_SETPIXEL_MUL_RGB555                           \
+    DRAW_SETPIXEL_MUL(RGB_FROM_RGB555(*pixel, sr, sg, sb), \
+                      RGB555_FROM_RGB(*pixel, sr, sg, sb))
+
+#define DRAW_SETPIXELXY_RGB555(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_RGB555)
+
+#define DRAW_SETPIXELXY_BLEND_RGB555(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_BLEND_RGB555)
+
+#define DRAW_SETPIXELXY_ADD_RGB555(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_ADD_RGB555)
+
+#define DRAW_SETPIXELXY_MOD_RGB555(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_MOD_RGB555)
+
+#define DRAW_SETPIXELXY_MUL_RGB555(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_MUL_RGB555)
+
+/*
+ * Define draw operators for RGB565
+ */
+
+#define DRAW_SETPIXEL_RGB565 \
+    DRAW_SETPIXEL(RGB565_FROM_RGB(*pixel, sr, sg, sb))
+
+#define DRAW_SETPIXEL_BLEND_RGB565                           \
+    DRAW_SETPIXEL_BLEND(RGB_FROM_RGB565(*pixel, sr, sg, sb), \
+                        RGB565_FROM_RGB(*pixel, sr, sg, sb))
+
+#define DRAW_SETPIXEL_ADD_RGB565                           \
+    DRAW_SETPIXEL_ADD(RGB_FROM_RGB565(*pixel, sr, sg, sb), \
+                      RGB565_FROM_RGB(*pixel, sr, sg, sb))
+
+#define DRAW_SETPIXEL_MOD_RGB565                           \
+    DRAW_SETPIXEL_MOD(RGB_FROM_RGB565(*pixel, sr, sg, sb), \
+                      RGB565_FROM_RGB(*pixel, sr, sg, sb))
+
+#define DRAW_SETPIXEL_MUL_RGB565                           \
+    DRAW_SETPIXEL_MUL(RGB_FROM_RGB565(*pixel, sr, sg, sb), \
+                      RGB565_FROM_RGB(*pixel, sr, sg, sb))
+
+#define DRAW_SETPIXELXY_RGB565(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_RGB565)
+
+#define DRAW_SETPIXELXY_BLEND_RGB565(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_BLEND_RGB565)
+
+#define DRAW_SETPIXELXY_ADD_RGB565(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_ADD_RGB565)
+
+#define DRAW_SETPIXELXY_MOD_RGB565(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_MOD_RGB565)
+
+#define DRAW_SETPIXELXY_MUL_RGB565(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_MUL_RGB565)
+
+/*
+ * Define draw operators for RGB888
+ */
+
+#define DRAW_SETPIXEL_XRGB8888 \
+    DRAW_SETPIXEL(XRGB8888_FROM_RGB(*pixel, sr, sg, sb))
+
+#define DRAW_SETPIXEL_BLEND_XRGB8888                           \
+    DRAW_SETPIXEL_BLEND(RGB_FROM_XRGB8888(*pixel, sr, sg, sb), \
+                        XRGB8888_FROM_RGB(*pixel, sr, sg, sb))
+
+#define DRAW_SETPIXEL_ADD_XRGB8888                           \
+    DRAW_SETPIXEL_ADD(RGB_FROM_XRGB8888(*pixel, sr, sg, sb), \
+                      XRGB8888_FROM_RGB(*pixel, sr, sg, sb))
+
+#define DRAW_SETPIXEL_MOD_XRGB8888                           \
+    DRAW_SETPIXEL_MOD(RGB_FROM_XRGB8888(*pixel, sr, sg, sb), \
+                      XRGB8888_FROM_RGB(*pixel, sr, sg, sb))
+
+#define DRAW_SETPIXEL_MUL_XRGB8888                           \
+    DRAW_SETPIXEL_MUL(RGB_FROM_XRGB8888(*pixel, sr, sg, sb), \
+                      XRGB8888_FROM_RGB(*pixel, sr, sg, sb))
+
+#define DRAW_SETPIXELXY_XRGB8888(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_XRGB8888)
+
+#define DRAW_SETPIXELXY_BLEND_XRGB8888(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_BLEND_XRGB8888)
+
+#define DRAW_SETPIXELXY_ADD_XRGB8888(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_ADD_XRGB8888)
+
+#define DRAW_SETPIXELXY_MOD_XRGB8888(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MOD_XRGB8888)
+
+#define DRAW_SETPIXELXY_MUL_XRGB8888(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MUL_XRGB8888)
+
+/*
+ * Define draw operators for ARGB8888
+ */
+
+#define DRAW_SETPIXEL_ARGB8888 \
+    DRAW_SETPIXEL(ARGB8888_FROM_RGBA(*pixel, sr, sg, sb, sa))
+
+#define DRAW_SETPIXEL_BLEND_ARGB8888                                \
+    DRAW_SETPIXEL_BLEND(RGBA_FROM_ARGB8888(*pixel, sr, sg, sb, sa), \
+                        ARGB8888_FROM_RGBA(*pixel, sr, sg, sb, sa))
+
+#define DRAW_SETPIXEL_ADD_ARGB8888                                \
+    DRAW_SETPIXEL_ADD(RGBA_FROM_ARGB8888(*pixel, sr, sg, sb, sa), \
+                      ARGB8888_FROM_RGBA(*pixel, sr, sg, sb, sa))
+
+#define DRAW_SETPIXEL_MOD_ARGB8888                                \
+    DRAW_SETPIXEL_MOD(RGBA_FROM_ARGB8888(*pixel, sr, sg, sb, sa), \
+                      ARGB8888_FROM_RGBA(*pixel, sr, sg, sb, sa))
+
+#define DRAW_SETPIXEL_MUL_ARGB8888                                \
+    DRAW_SETPIXEL_MUL(RGBA_FROM_ARGB8888(*pixel, sr, sg, sb, sa), \
+                      ARGB8888_FROM_RGBA(*pixel, sr, sg, sb, sa))
+
+#define DRAW_SETPIXELXY_ARGB8888(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_ARGB8888)
+
+#define DRAW_SETPIXELXY_BLEND_ARGB8888(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_BLEND_ARGB8888)
+
+#define DRAW_SETPIXELXY_ADD_ARGB8888(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_ADD_ARGB8888)
+
+#define DRAW_SETPIXELXY_MOD_ARGB8888(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MOD_ARGB8888)
+
+#define DRAW_SETPIXELXY_MUL_ARGB8888(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MUL_ARGB8888)
+
+/*
+ * Define draw operators for general RGB
+ */
+
+#define DRAW_SETPIXEL_RGB \
+    DRAW_SETPIXEL(PIXEL_FROM_RGB(*pixel, fmt, sr, sg, sb))
+
+#define DRAW_SETPIXEL_BLEND_RGB                                  \
+    DRAW_SETPIXEL_BLEND(RGB_FROM_PIXEL(*pixel, fmt, sr, sg, sb), \
+                        PIXEL_FROM_RGB(*pixel, fmt, sr, sg, sb))
+
+#define DRAW_SETPIXEL_ADD_RGB                                  \
+    DRAW_SETPIXEL_ADD(RGB_FROM_PIXEL(*pixel, fmt, sr, sg, sb), \
+                      PIXEL_FROM_RGB(*pixel, fmt, sr, sg, sb))
+
+#define DRAW_SETPIXEL_MOD_RGB                                  \
+    DRAW_SETPIXEL_MOD(RGB_FROM_PIXEL(*pixel, fmt, sr, sg, sb), \
+                      PIXEL_FROM_RGB(*pixel, fmt, sr, sg, sb))
+
+#define DRAW_SETPIXEL_MUL_RGB                                  \
+    DRAW_SETPIXEL_MUL(RGB_FROM_PIXEL(*pixel, fmt, sr, sg, sb), \
+                      PIXEL_FROM_RGB(*pixel, fmt, sr, sg, sb))
+
+#define DRAW_SETPIXELXY2_RGB(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_RGB)
+
+#define DRAW_SETPIXELXY4_RGB(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_RGB)
+
+#define DRAW_SETPIXELXY2_BLEND_RGB(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_BLEND_RGB)
+
+#define DRAW_SETPIXELXY4_BLEND_RGB(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_BLEND_RGB)
+
+#define DRAW_SETPIXELXY2_ADD_RGB(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_ADD_RGB)
+
+#define DRAW_SETPIXELXY4_ADD_RGB(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_ADD_RGB)
+
+#define DRAW_SETPIXELXY2_MOD_RGB(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_MOD_RGB)
+
+#define DRAW_SETPIXELXY4_MOD_RGB(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MOD_RGB)
+
+#define DRAW_SETPIXELXY2_MUL_RGB(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint16, 2, DRAW_SETPIXEL_MUL_RGB)
+
+#define DRAW_SETPIXELXY4_MUL_RGB(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MUL_RGB)
+
+/*
+ * Define draw operators for general RGBA
+ */
+
+#define DRAW_SETPIXEL_RGBA \
+    DRAW_SETPIXEL(PIXEL_FROM_RGBA(*pixel, fmt, sr, sg, sb, sa))
+
+#define DRAW_SETPIXEL_BLEND_RGBA                                      \
+    DRAW_SETPIXEL_BLEND(RGBA_FROM_PIXEL(*pixel, fmt, sr, sg, sb, sa), \
+                        PIXEL_FROM_RGBA(*pixel, fmt, sr, sg, sb, sa))
+
+#define DRAW_SETPIXEL_ADD_RGBA                                      \
+    DRAW_SETPIXEL_ADD(RGBA_FROM_PIXEL(*pixel, fmt, sr, sg, sb, sa), \
+                      PIXEL_FROM_RGBA(*pixel, fmt, sr, sg, sb, sa))
+
+#define DRAW_SETPIXEL_MOD_RGBA                                      \
+    DRAW_SETPIXEL_MOD(RGBA_FROM_PIXEL(*pixel, fmt, sr, sg, sb, sa), \
+                      PIXEL_FROM_RGBA(*pixel, fmt, sr, sg, sb, sa))
+
+#define DRAW_SETPIXEL_MUL_RGBA                                      \
+    DRAW_SETPIXEL_MUL(RGBA_FROM_PIXEL(*pixel, fmt, sr, sg, sb, sa), \
+                      PIXEL_FROM_RGBA(*pixel, fmt, sr, sg, sb, sa))
+
+#define DRAW_SETPIXELXY4_RGBA(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_RGBA)
+
+#define DRAW_SETPIXELXY4_BLEND_RGBA(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_BLEND_RGBA)
+
+#define DRAW_SETPIXELXY4_ADD_RGBA(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_ADD_RGBA)
+
+#define DRAW_SETPIXELXY4_MOD_RGBA(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MOD_RGBA)
+
+#define DRAW_SETPIXELXY4_MUL_RGBA(x, y) \
+    DRAW_SETPIXELXY(x, y, Uint32, 4, DRAW_SETPIXEL_MUL_RGBA)
+
+/*
+ * Define line drawing macro
+ */
+
+#define ABS(_x) ((_x) < 0 ? -(_x) : (_x))
+
+/* Horizontal line */
+#define HLINE(type, op, draw_end)                              \
+    {                                                          \
+        int length;                                            \
+        int pitch = (dst->pitch / dst->format->BytesPerPixel); \
+        type *pixel;                                           \
+        if (x1 <= x2) {                                        \
+            pixel = (type *)dst->pixels + y1 * pitch + x1;     \
+            length = draw_end ? (x2 - x1 + 1) : (x2 - x1);     \
+        } else {                                               \
+            pixel = (type *)dst->pixels + y1 * pitch + x2;     \
+            if (!draw_end) {                                   \
+                ++pixel;                                       \
+            }                                                  \
+            length = draw_end ? (x1 - x2 + 1) : (x1 - x2);     \
+        }                                                      \
+        while (length--) {                                     \
+            op;                                                \
+            ++pixel;                                           \
+        }                                                      \
+    }
+
+/* Vertical line */
+#define VLINE(type, op, draw_end)                              \
+    {                                                          \
+        int length;                                            \
+        int pitch = (dst->pitch / dst->format->BytesPerPixel); \
+        type *pixel;                                           \
+        if (y1 <= y2) {                                        \
+            pixel = (type *)dst->pixels + y1 * pitch + x1;     \
+            length = draw_end ? (y2 - y1 + 1) : (y2 - y1);     \
+        } else {                                               \
+            pixel = (type *)dst->pixels + y2 * pitch + x1;     \
+            if (!draw_end) {                                   \
+                pixel += pitch;                                \
+            }                                                  \
+            length = draw_end ? (y1 - y2 + 1) : (y1 - y2);     \
+        }                                                      \
+        while (length--) {                                     \
+            op;                                                \
+            pixel += pitch;                                    \
+        }                                                      \
+    }
+
+/* Diagonal line */
+#define DLINE(type, op, draw_end)                              \
+    {                                                          \
+        int length;                                            \
+        int pitch = (dst->pitch / dst->format->BytesPerPixel); \
+        type *pixel;                                           \
+        if (y1 <= y2) {                                        \
+            pixel = (type *)dst->pixels + y1 * pitch + x1;     \
+            if (x1 <= x2) {                                    \
+                ++pitch;                                       \
+            } else {                                           \
+                --pitch;                                       \
+            }                                                  \
+            length = (y2 - y1);                                \
+        } else {                                               \
+            pixel = (type *)dst->pixels + y2 * pitch + x2;     \
+            if (x2 <= x1) {                                    \
+                ++pitch;                                       \
+            } else {                                           \
+                --pitch;                                       \
+            }                                                  \
+            if (!draw_end) {                                   \
+                pixel += pitch;                                \
+            }                                                  \
+            length = (y1 - y2);                                \
+        }                                                      \
+        if (draw_end) {                                        \
+            ++length;                                          \
+        }                                                      \
+        while (length--) {                                     \
+            op;                                                \
+            pixel += pitch;                                    \
+        }                                                      \
+    }
+
+/* Bresenham's line algorithm */
+#define BLINE(x1, y1, x2, y2, op, draw_end) \
+    {                                       \
+        int i, deltax, deltay, numpixels;   \
+        int d, dinc1, dinc2;                \
+        int x, xinc1, xinc2;                \
+        int y, yinc1, yinc2;                \
+                                            \
+        deltax = ABS(x2 - x1);              \
+        deltay = ABS(y2 - y1);              \
+                                            \
+        if (deltax >= deltay) {             \
+            numpixels = deltax + 1;         \
+            d = (2 * deltay) - deltax;      \
+            dinc1 = deltay * 2;             \
+            dinc2 = (deltay - deltax) * 2;  \
+            xinc1 = 1;                      \
+            xinc2 = 1;                      \
+            yinc1 = 0;                      \
+            yinc2 = 1;                      \
+        } else {                            \
+            numpixels = deltay + 1;         \
+            d = (2 * deltax) - deltay;      \
+            dinc1 = deltax * 2;             \
+            dinc2 = (deltax - deltay) * 2;  \
+            xinc1 = 0;                      \
+            xinc2 = 1;                      \
+            yinc1 = 1;                      \
+            yinc2 = 1;                      \
+        }                                   \
+                                            \
+        if (x1 > x2) {                      \
+            xinc1 = -xinc1;                 \
+            xinc2 = -xinc2;                 \
+        }                                   \
+        if (y1 > y2) {                      \
+            yinc1 = -yinc1;                 \
+            yinc2 = -yinc2;                 \
+        }                                   \
+                                            \
+        x = x1;                             \
+        y = y1;                             \
+                                            \
+        if (!draw_end) {                    \
+            --numpixels;                    \
+        }                                   \
+        for (i = 0; i < numpixels; ++i) {   \
+            op(x, y);                       \
+            if (d < 0) {                    \
+                d += dinc1;                 \
+                x += xinc1;                 \
+                y += yinc1;                 \
+            } else {                        \
+                d += dinc2;                 \
+                x += xinc2;                 \
+                y += yinc2;                 \
+            }                               \
+        }                                   \
+    }
+
+/* Xiaolin Wu's line algorithm, based on Michael Abrash's implementation */
+#define WULINE(x1, y1, x2, y2, opaque_op, blend_op, draw_end)                       \
+    {                                                                               \
+        Uint16 ErrorAdj, ErrorAcc;                                                  \
+        Uint16 ErrorAccTemp, Weighting;                                             \
+        int DeltaX, DeltaY, Temp, XDir;                                             \
+        unsigned r, g, b, a, inva;                                                  \
+                                                                                    \
+        /* Draw the initial pixel, which is always exactly intersected by           \
+           the line and so needs no weighting */                                    \
+        opaque_op(x1, y1);                                                          \
+                                                                                    \
+        /* Draw the final pixel, which is always exactly intersected by the line    \
+           and so needs no weighting */                                             \
+        if (draw_end) {                                                             \
+            opaque_op(x2, y2);                                                      \
+        }                                                                           \
+                                                                                    \
+        /* Make sure the line runs top to bottom */                                 \
+        if (y1 > y2) {                                                              \
+            Temp = y1;                                                              \
+            y1 = y2;                                                                \
+            y2 = Temp;                                                              \
+            Temp = x1;                                                              \
+            x1 = x2;                                                                \
+            x2 = Temp;                                                              \
+        }                                                                           \
+        DeltaY = y2 - y1;                                                           \
+                                                                                    \
+        if ((DeltaX = x2 - x1) >= 0) {                                              \
+            XDir = 1;                                                               \
+        } else {                                                                    \
+            XDir = -1;                                                              \
+            DeltaX = -DeltaX; /* make DeltaX positive */                            \
+        }                                                                           \
+                                                                                    \
+        /* line is not horizontal, diagonal, or vertical */                         \
+        ErrorAcc = 0; /* initialize the line error accumulator to 0 */              \
+                                                                                    \
+        /* Is this an X-major or Y-major line? */                                   \
+        if (DeltaY > DeltaX) {                                                      \
+            /* Y-major line; calculate 16-bit fixed-point fractional part of a      \
+              pixel that X advances each time Y advances 1 pixel, truncating the    \
+              result so that we won't overrun the endpoint along the X axis */      \
+            ErrorAdj = ((unsigned long)DeltaX << 16) / (unsigned long)DeltaY;       \
+            /* Draw all pixels other than the first and last */                     \
+            while (--DeltaY) {                                                      \
+                ErrorAccTemp = ErrorAcc; /* remember current accumulated error */   \
+                ErrorAcc += ErrorAdj;    /* calculate error for next pixel */       \
+                if (ErrorAcc <= ErrorAccTemp) {                                     \
+                    /* The error accumulator turned over, so advance the X coord */ \
+                    x1 += XDir;                                                     \
+                }                                                                   \
+                y1++; /* Y-major, so always advance Y */                            \
+                /* The IntensityBits most significant bits of ErrorAcc give us the  \
+                 intensity weighting for this pixel, and the complement of the      \
+                 weighting for the paired pixel */                                  \
+                Weighting = ErrorAcc >> 8;                                          \
+                {                                                                   \
+                    a = DRAW_MUL(_a, (Weighting ^ 255));                            \
+                    r = DRAW_MUL(_r, a);                                            \
+                    g = DRAW_MUL(_g, a);                                            \
+                    b = DRAW_MUL(_b, a);                                            \
+                    inva = (a ^ 0xFF);                                              \
+                    blend_op(x1, y1);                                               \
+                }                                                                   \
+                {                                                                   \
+                    a = DRAW_MUL(_a, Weighting);                                    \
+                    r = DRAW_MUL(_r, a);                                            \
+                    g = DRAW_MUL(_g, a);                                            \
+                    b = DRAW_MUL(_b, a);                                            \
+                    inva = (a ^ 0xFF);                                              \
+                    blend_op(x1 + XDir, y1);                                        \
+                }                                                                   \
+            }                                                                       \
+        } else {                                                                    \
+            /* X-major line; calculate 16-bit fixed-point fractional part of a      \
+               pixel that Y advances each time X advances 1 pixel, truncating the   \
+               result to avoid overrunning the endpoint along the X axis */         \
+            ErrorAdj = ((unsigned long)DeltaY << 16) / (unsigned long)DeltaX;       \
+            /* Draw all pixels other than the first and last */                     \
+            while (--DeltaX) {                                                      \
+                ErrorAccTemp = ErrorAcc; /* remember current accumulated error */   \
+                ErrorAcc += ErrorAdj;    /* calculate error for next pixel */       \
+                if (ErrorAcc <= ErrorAccTemp) {                                     \
+                    /* The error accumulator turned over, so advance the Y coord */ \
+                    y1++;                                                           \
+                }                                                                   \
+                x1 += XDir; /* X-major, so always advance X */                      \
+                /* The IntensityBits most significant bits of ErrorAcc give us the  \
+                  intensity weighting for this pixel, and the complement of the     \
+                  weighting for the paired pixel */                                 \
+                Weighting = ErrorAcc >> 8;                                          \
+                {                                                                   \
+                    a = DRAW_MUL(_a, (Weighting ^ 255));                            \
+                    r = DRAW_MUL(_r, a);                                            \
+                    g = DRAW_MUL(_g, a);                                            \
+                    b = DRAW_MUL(_b, a);                                            \
+                    inva = (a ^ 0xFF);                                              \
+                    blend_op(x1, y1);                                               \
+                }                                                                   \
+                {                                                                   \
+                    a = DRAW_MUL(_a, Weighting);                                    \
+                    r = DRAW_MUL(_r, a);                                            \
+                    g = DRAW_MUL(_g, a);                                            \
+                    b = DRAW_MUL(_b, a);                                            \
+                    inva = (a ^ 0xFF);                                              \
+                    blend_op(x1, y1 + 1);                                           \
+                }                                                                   \
+            }                                                                       \
+        }                                                                           \
+    }
+
+#ifdef AA_LINES
+#define AALINE(x1, y1, x2, y2, opaque_op, blend_op, draw_end) \
+    WULINE(x1, y1, x2, y2, opaque_op, blend_op, draw_end)
+#else
+#define AALINE(x1, y1, x2, y2, opaque_op, blend_op, draw_end) \
+    BLINE(x1, y1, x2, y2, opaque_op, draw_end)
+#endif
+
+/*
+ * Define fill rect macro
+ */
+
+#define FILLRECT(type, op)                                             \
+    do {                                                               \
+        int width = rect->w;                                           \
+        int height = rect->h;                                          \
+        int pitch = (dst->pitch / dst->format->BytesPerPixel);         \
+        int skip = pitch - width;                                      \
+        type *pixel = (type *)dst->pixels + rect->y * pitch + rect->x; \
+        while (height--) {                                             \
+            {                                                          \
+                int n = (width + 3) / 4;                               \
+                switch (width & 3) {                                   \
+                case 0:                                                \
+                    do {                                               \
+                        op;                                            \
+                        pixel++;                                       \
+                        SDL_FALLTHROUGH;                               \
+                    case 3:                                            \
+                        op;                                            \
+                        pixel++;                                       \
+                        SDL_FALLTHROUGH;                               \
+                    case 2:                                            \
+                        op;                                            \
+                        pixel++;                                       \
+                        SDL_FALLTHROUGH;                               \
+                    case 1:                                            \
+                        op;                                            \
+                        pixel++;                                       \
+                    } while (--n > 0);                                 \
+                }                                                      \
+            }                                                          \
+            pixel += skip;                                             \
+        }                                                              \
+    } while (0)

external/sdl/SDL/src/render/software/SDL_drawline.c

@@ -0,0 +1,200 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if SDL_VIDEO_RENDER_SW && !defined(SDL_RENDER_DISABLED)
+
+#include "SDL_draw.h"
+#include "SDL_drawline.h"
+#include "SDL_drawpoint.h"
+
+static void SDL_DrawLine1(SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color,
+                          SDL_bool draw_end)
+{
+    if (y1 == y2) {
+        int length;
+        int pitch = (dst->pitch / dst->format->BytesPerPixel);
+        Uint8 *pixel;
+        if (x1 <= x2) {
+            pixel = (Uint8 *)dst->pixels + y1 * pitch + x1;
+            length = draw_end ? (x2 - x1 + 1) : (x2 - x1);
+        } else {
+            pixel = (Uint8 *)dst->pixels + y1 * pitch + x2;
+            if (!draw_end) {
+                ++pixel;
+            }
+            length = draw_end ? (x1 - x2 + 1) : (x1 - x2);
+        }
+        SDL_memset(pixel, color, length);
+    } else if (x1 == x2) {
+        VLINE(Uint8, DRAW_FASTSETPIXEL1, draw_end);
+    } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
+        DLINE(Uint8, DRAW_FASTSETPIXEL1, draw_end);
+    } else {
+        BLINE(x1, y1, x2, y2, DRAW_FASTSETPIXELXY1, draw_end);
+    }
+}
+
+static void SDL_DrawLine2(SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color,
+                          SDL_bool draw_end)
+{
+    if (y1 == y2) {
+        HLINE(Uint16, DRAW_FASTSETPIXEL2, draw_end);
+    } else if (x1 == x2) {
+        VLINE(Uint16, DRAW_FASTSETPIXEL2, draw_end);
+    } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
+        DLINE(Uint16, DRAW_FASTSETPIXEL2, draw_end);
+    } else {
+        Uint8 _r, _g, _b, _a;
+        const SDL_PixelFormat *fmt = dst->format;
+        SDL_GetRGBA(color, fmt, &_r, &_g, &_b, &_a);
+        if (fmt->Rmask == 0x7C00) {
+            AALINE(x1, y1, x2, y2,
+                   DRAW_FASTSETPIXELXY2, DRAW_SETPIXELXY_BLEND_RGB555,
+                   draw_end);
+        } else if (fmt->Rmask == 0xF800) {
+            AALINE(x1, y1, x2, y2,
+                   DRAW_FASTSETPIXELXY2, DRAW_SETPIXELXY_BLEND_RGB565,
+                   draw_end);
+        } else {
+            AALINE(x1, y1, x2, y2,
+                   DRAW_FASTSETPIXELXY2, DRAW_SETPIXELXY2_BLEND_RGB,
+                   draw_end);
+        }
+    }
+}
+
+static void SDL_DrawLine4(SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color,
+                          SDL_bool draw_end)
+{
+    if (y1 == y2) {
+        HLINE(Uint32, DRAW_FASTSETPIXEL4, draw_end);
+    } else if (x1 == x2) {
+        VLINE(Uint32, DRAW_FASTSETPIXEL4, draw_end);
+    } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
+        DLINE(Uint32, DRAW_FASTSETPIXEL4, draw_end);
+    } else {
+        Uint8 _r, _g, _b, _a;
+        const SDL_PixelFormat *fmt = dst->format;
+        SDL_GetRGBA(color, fmt, &_r, &_g, &_b, &_a);
+        if (fmt->Rmask == 0x00FF0000) {
+            if (!fmt->Amask) {
+                AALINE(x1, y1, x2, y2,
+                       DRAW_FASTSETPIXELXY4, DRAW_SETPIXELXY_BLEND_XRGB8888,
+                       draw_end);
+            } else {
+                AALINE(x1, y1, x2, y2,
+                       DRAW_FASTSETPIXELXY4, DRAW_SETPIXELXY_BLEND_ARGB8888,
+                       draw_end);
+            }
+        } else {
+            AALINE(x1, y1, x2, y2,
+                   DRAW_FASTSETPIXELXY4, DRAW_SETPIXELXY4_BLEND_RGB,
+                   draw_end);
+        }
+    }
+}
+
+typedef void (*DrawLineFunc)(SDL_Surface *dst,
+                             int x1, int y1, int x2, int y2,
+                             Uint32 color, SDL_bool draw_end);
+
+static DrawLineFunc SDL_CalculateDrawLineFunc(const SDL_PixelFormat *fmt)
+{
+    switch (fmt->BytesPerPixel) {
+    case 1:
+        if (fmt->BitsPerPixel < 8) {
+            break;
+        }
+        return SDL_DrawLine1;
+    case 2:
+        return SDL_DrawLine2;
+    case 4:
+        return SDL_DrawLine4;
+    }
+    return NULL;
+}
+
+int SDL_DrawLine(SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color)
+{
+    DrawLineFunc func;
+
+    if (dst == NULL) {
+        return SDL_InvalidParamError("SDL_DrawLine(): dst");
+    }
+
+    func = SDL_CalculateDrawLineFunc(dst->format);
+    if (func == NULL) {
+        return SDL_SetError("SDL_DrawLine(): Unsupported surface format");
+    }
+
+    /* Perform clipping */
+    /* FIXME: We don't actually want to clip, as it may change line slope */
+    if (!SDL_GetRectAndLineIntersection(&dst->clip_rect, &x1, &y1, &x2, &y2)) {
+        return 0;
+    }
+
+    func(dst, x1, y1, x2, y2, color, SDL_TRUE);
+    return 0;
+}
+
+int SDL_DrawLines(SDL_Surface *dst, const SDL_Point *points, int count,
+                  Uint32 color)
+{
+    int i;
+    int x1, y1;
+    int x2, y2;
+    SDL_bool draw_end;
+    DrawLineFunc func;
+
+    if (dst == NULL) {
+        return SDL_InvalidParamError("SDL_DrawLines(): dst");
+    }
+
+    func = SDL_CalculateDrawLineFunc(dst->format);
+    if (func == NULL) {
+        return SDL_SetError("SDL_DrawLines(): Unsupported surface format");
+    }
+
+    for (i = 1; i < count; ++i) {
+        x1 = points[i - 1].x;
+        y1 = points[i - 1].y;
+        x2 = points[i].x;
+        y2 = points[i].y;
+
+        /* Perform clipping */
+        /* FIXME: We don't actually want to clip, as it may change line slope */
+        if (!SDL_GetRectAndLineIntersection(&dst->clip_rect, &x1, &y1, &x2, &y2)) {
+            continue;
+        }
+
+        /* Draw the end if the whole line is a single point or it was clipped */
+        draw_end = ((x1 == x2) && (y1 == y2)) || (x2 != points[i].x || y2 != points[i].y);
+
+        func(dst, x1, y1, x2, y2, color, draw_end);
+    }
+    if (points[0].x != points[count - 1].x || points[0].y != points[count - 1].y) {
+        SDL_DrawPoint(dst, points[count - 1].x, points[count - 1].y, color);
+    }
+    return 0;
+}
+
+#endif /* SDL_VIDEO_RENDER_SW && !SDL_RENDER_DISABLED */

external/sdl/SDL/src/render/software/SDL_drawline.h

@@ -0,0 +1,30 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef SDL_drawline_h_
+#define SDL_drawline_h_
+
+#include "SDL_internal.h"
+
+extern int SDL_DrawLine(SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color);
+extern int SDL_DrawLines(SDL_Surface *dst, const SDL_Point *points, int count, Uint32 color);
+
+#endif /* SDL_drawline_h_ */

external/sdl/SDL/src/render/software/SDL_drawpoint.c

@@ -0,0 +1,109 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if SDL_VIDEO_RENDER_SW && !defined(SDL_RENDER_DISABLED)
+
+#include "SDL_draw.h"
+#include "SDL_drawpoint.h"
+
+int SDL_DrawPoint(SDL_Surface *dst, int x, int y, Uint32 color)
+{
+    if (dst == NULL) {
+        return SDL_InvalidParamError("SDL_DrawPoint(): dst");
+    }
+
+    /* This function doesn't work on surfaces < 8 bpp */
+    if (dst->format->BitsPerPixel < 8) {
+        return SDL_SetError("SDL_DrawPoint(): Unsupported surface format");
+    }
+
+    /* Perform clipping */
+    if (x < dst->clip_rect.x || y < dst->clip_rect.y ||
+        x >= (dst->clip_rect.x + dst->clip_rect.w) ||
+        y >= (dst->clip_rect.y + dst->clip_rect.h)) {
+        return 0;
+    }
+
+    switch (dst->format->BytesPerPixel) {
+    case 1:
+        DRAW_FASTSETPIXELXY1(x, y);
+        break;
+    case 2:
+        DRAW_FASTSETPIXELXY2(x, y);
+        break;
+    case 3:
+        return SDL_Unsupported();
+    case 4:
+        DRAW_FASTSETPIXELXY4(x, y);
+        break;
+    }
+    return 0;
+}
+
+int SDL_DrawPoints(SDL_Surface *dst, const SDL_Point *points, int count,
+                   Uint32 color)
+{
+    int minx, miny;
+    int maxx, maxy;
+    int i;
+    int x, y;
+
+    if (dst == NULL) {
+        return SDL_InvalidParamError("SDL_DrawPoints(): dst");
+    }
+
+    /* This function doesn't work on surfaces < 8 bpp */
+    if (dst->format->BitsPerPixel < 8) {
+        return SDL_SetError("SDL_DrawPoints(): Unsupported surface format");
+    }
+
+    minx = dst->clip_rect.x;
+    maxx = dst->clip_rect.x + dst->clip_rect.w - 1;
+    miny = dst->clip_rect.y;
+    maxy = dst->clip_rect.y + dst->clip_rect.h - 1;
+
+    for (i = 0; i < count; ++i) {
+        x = points[i].x;
+        y = points[i].y;
+
+        if (x < minx || x > maxx || y < miny || y > maxy) {
+            continue;
+        }
+
+        switch (dst->format->BytesPerPixel) {
+        case 1:
+            DRAW_FASTSETPIXELXY1(x, y);
+            break;
+        case 2:
+            DRAW_FASTSETPIXELXY2(x, y);
+            break;
+        case 3:
+            return SDL_Unsupported();
+        case 4:
+            DRAW_FASTSETPIXELXY4(x, y);
+            break;
+        }
+    }
+    return 0;
+}
+
+#endif /* SDL_VIDEO_RENDER_SW && !SDL_RENDER_DISABLED */

external/sdl/SDL/src/render/software/SDL_drawpoint.h

@@ -0,0 +1,30 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef SDL_drawpoint_h_
+#define SDL_drawpoint_h_
+
+#include "SDL_internal.h"
+
+extern int SDL_DrawPoint(SDL_Surface *dst, int x, int y, Uint32 color);
+extern int SDL_DrawPoints(SDL_Surface *dst, const SDL_Point *points, int count, Uint32 color);
+
+#endif /* SDL_drawpoint_h_ */

external/sdl/SDL/src/render/software/SDL_render_sw_c.h

@@ -0,0 +1,27 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef SDL_render_sw_c_h_
+#define SDL_render_sw_c_h_
+
+extern SDL_Renderer *SW_CreateRendererForSurface(SDL_Surface *surface);
+
+#endif /* SDL_render_sw_c_h_ */

external/sdl/SDL/src/render/software/SDL_rotate.c

@@ -0,0 +1,616 @@
+/*
+
+SDL_rotate.c: rotates 32bit or 8bit surfaces
+
+Shamelessly stolen from SDL_gfx by Andreas Schiffler. Original copyright follows:
+
+Copyright (C) 2001-2011  Andreas Schiffler
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+   1. The origin of this software must not be misrepresented; you must not
+   claim that you wrote the original software. If you use this software
+   in a product, an acknowledgment in the product documentation would be
+   appreciated but is not required.
+
+   2. Altered source versions must be plainly marked as such, and must not be
+   misrepresented as being the original software.
+
+   3. This notice may not be removed or altered from any source
+   distribution.
+
+Andreas Schiffler -- aschiffler at ferzkopp dot net
+
+*/
+#include "SDL_internal.h"
+
+#if SDL_VIDEO_RENDER_SW && !defined(SDL_RENDER_DISABLED)
+
+#if defined(__WIN32__) || defined(__GDK__)
+#include "../../core/windows/SDL_windows.h"
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "SDL_rotate.h"
+
+/* ---- Internally used structures */
+
+/**
+\brief A 32 bit RGBA pixel.
+*/
+typedef struct tColorRGBA
+{
+    Uint8 r;
+    Uint8 g;
+    Uint8 b;
+    Uint8 a;
+} tColorRGBA;
+
+/**
+\brief A 8bit Y/palette pixel.
+*/
+typedef struct tColorY
+{
+    Uint8 y;
+} tColorY;
+
+/**
+\brief Number of guard rows added to destination surfaces.
+
+This is a simple but effective workaround for observed issues.
+These rows allocate extra memory and are then hidden from the surface.
+Rows are added to the end of destination surfaces when they are allocated.
+This catches any potential overflows which seem to happen with
+just the right src image dimensions and scale/rotation and can lead
+to a situation where the program can segfault.
+*/
+#define GUARD_ROWS (2)
+
+/**
+\brief Returns colorkey info for a surface
+*/
+static Uint32 get_colorkey(SDL_Surface *src)
+{
+    Uint32 key = 0;
+    if (SDL_SurfaceHasColorKey(src)) {
+        SDL_GetSurfaceColorKey(src, &key);
+    }
+    return key;
+}
+
+/* rotate (sx, sy) by (angle, center) into (dx, dy) */
+static void rotate(double sx, double sy, double sinangle, double cosangle, const SDL_FPoint *center, double *dx, double *dy)
+{
+    sx -= center->x;
+    sy -= center->y;
+
+    *dx = cosangle * sx - sinangle * sy;
+    *dy = sinangle * sx + cosangle * sy;
+
+    *dx += center->x;
+    *dy += center->y;
+}
+
+/**
+\brief Internal target surface sizing function for rotations with trig result return.
+
+\param width The source surface width.
+\param height The source surface height.
+\param angle The angle to rotate in degrees.
+\param center The center of ratation
+\param rect_dest Bounding box of rotated rectangle
+\param cangle The sine of the angle
+\param sangle The cosine of the angle
+
+*/
+void SDLgfx_rotozoomSurfaceSizeTrig(int width, int height, double angle, const SDL_FPoint *center,
+                                    SDL_Rect *rect_dest, double *cangle, double *sangle)
+{
+    int minx, maxx, miny, maxy;
+    double radangle;
+    double x0, x1, x2, x3;
+    double y0, y1, y2, y3;
+    double sinangle;
+    double cosangle;
+
+    radangle = angle * (SDL_PI_D / 180.0);
+    sinangle = SDL_sin(radangle);
+    cosangle = SDL_cos(radangle);
+
+    /*
+     * Determine destination width and height by rotating a source box, at pixel center
+     */
+    rotate(0.5, 0.5, sinangle, cosangle, center, &x0, &y0);
+    rotate(width - 0.5, 0.5, sinangle, cosangle, center, &x1, &y1);
+    rotate(0.5, height - 0.5, sinangle, cosangle, center, &x2, &y2);
+    rotate(width - 0.5, height - 0.5, sinangle, cosangle, center, &x3, &y3);
+
+    minx = (int)SDL_floor(SDL_min(SDL_min(x0, x1), SDL_min(x2, x3)));
+    maxx = (int)SDL_ceil(SDL_max(SDL_max(x0, x1), SDL_max(x2, x3)));
+
+    miny = (int)SDL_floor(SDL_min(SDL_min(y0, y1), SDL_min(y2, y3)));
+    maxy = (int)SDL_ceil(SDL_max(SDL_max(y0, y1), SDL_max(y2, y3)));
+
+    rect_dest->w = maxx - minx;
+    rect_dest->h = maxy - miny;
+    rect_dest->x = minx;
+    rect_dest->y = miny;
+
+    /* reverse the angle because our rotations are clockwise */
+    *sangle = -sinangle;
+    *cangle = cosangle;
+
+    {
+        /* The trig code below gets the wrong size (due to FP inaccuracy?) when angle is a multiple of 90 degrees */
+        int angle90 = (int)(angle / 90);
+        if (angle90 == angle / 90) { /* if the angle is a multiple of 90 degrees */
+            angle90 %= 4;
+            if (angle90 < 0) {
+                angle90 += 4; /* 0:0 deg, 1:90 deg, 2:180 deg, 3:270 deg */
+            }
+
+            if (angle90 & 1) {
+                rect_dest->w = height;
+                rect_dest->h = width;
+                *cangle = 0;
+                *sangle = angle90 == 1 ? -1 : 1; /* reversed because our rotations are clockwise */
+            } else {
+                rect_dest->w = width;
+                rect_dest->h = height;
+                *cangle = angle90 == 0 ? 1 : -1;
+                *sangle = 0;
+            }
+        }
+    }
+}
+
+/* Computes source pointer X/Y increments for a rotation that's a multiple of 90 degrees. */
+static void computeSourceIncrements90(SDL_Surface *src, int bpp, int angle, int flipx, int flipy,
+                                      int *sincx, int *sincy, int *signx, int *signy)
+{
+    int pitch = flipy ? -src->pitch : src->pitch;
+    if (flipx) {
+        bpp = -bpp;
+    }
+    switch (angle) { /* 0:0 deg, 1:90 deg, 2:180 deg, 3:270 deg */
+    case 0:
+        *sincx = bpp;
+        *sincy = pitch - src->w * *sincx;
+        *signx = *signy = 1;
+        break;
+    case 1:
+        *sincx = -pitch;
+        *sincy = bpp - *sincx * src->h;
+        *signx = 1;
+        *signy = -1;
+        break;
+    case 2:
+        *sincx = -bpp;
+        *sincy = -src->w * *sincx - pitch;
+        *signx = *signy = -1;
+        break;
+    case 3:
+    default:
+        *sincx = pitch;
+        *sincy = -*sincx * src->h - bpp;
+        *signx = -1;
+        *signy = 1;
+        break;
+    }
+    if (flipx) {
+        *signx = -*signx;
+    }
+    if (flipy) {
+        *signy = -*signy;
+    }
+}
+
+/* Performs a relatively fast rotation/flip when the angle is a multiple of 90 degrees. */
+#define TRANSFORM_SURFACE_90(pixelType)                                                                     \
+    int dy, dincy = dst->pitch - dst->w * sizeof(pixelType), sincx, sincy, signx, signy;                    \
+    Uint8 *sp = (Uint8 *)src->pixels, *dp = (Uint8 *)dst->pixels, *de;                                      \
+                                                                                                            \
+    computeSourceIncrements90(src, sizeof(pixelType), angle, flipx, flipy, &sincx, &sincy, &signx, &signy); \
+    if (signx < 0)                                                                                          \
+        sp += (src->w - 1) * sizeof(pixelType);                                                             \
+    if (signy < 0)                                                                                          \
+        sp += (src->h - 1) * src->pitch;                                                                    \
+                                                                                                            \
+    for (dy = 0; dy < dst->h; sp += sincy, dp += dincy, dy++) {                                             \
+        if (sincx == sizeof(pixelType)) { /* if advancing src and dest equally, use SDL_memcpy */           \
+            SDL_memcpy(dp, sp, dst->w * sizeof(pixelType));                                                 \
+            sp += dst->w * sizeof(pixelType);                                                               \
+            dp += dst->w * sizeof(pixelType);                                                               \
+        } else {                                                                                            \
+            for (de = dp + dst->w * sizeof(pixelType); dp != de; sp += sincx, dp += sizeof(pixelType)) {    \
+                *(pixelType *)dp = *(pixelType *)sp;                                                        \
+            }                                                                                               \
+        }                                                                                                   \
+    }
+
+static void transformSurfaceRGBA90(SDL_Surface *src, SDL_Surface *dst, int angle, int flipx, int flipy)
+{
+    TRANSFORM_SURFACE_90(tColorRGBA);
+}
+
+static void transformSurfaceY90(SDL_Surface *src, SDL_Surface *dst, int angle, int flipx, int flipy)
+{
+    TRANSFORM_SURFACE_90(tColorY);
+}
+
+#undef TRANSFORM_SURFACE_90
+
+/**
+\brief Internal 32 bit rotozoomer with optional anti-aliasing.
+
+Rotates and zooms 32 bit RGBA/ABGR 'src' surface to 'dst' surface based on the control
+parameters by scanning the destination surface and applying optionally anti-aliasing
+by bilinear interpolation.
+Assumes src and dst surfaces are of 32 bit depth.
+Assumes dst surface was allocated with the correct dimensions.
+
+\param src Source surface.
+\param dst Destination surface.
+\param isin Integer version of sine of angle.
+\param icos Integer version of cosine of angle.
+\param flipx Flag indicating horizontal mirroring should be applied.
+\param flipy Flag indicating vertical mirroring should be applied.
+\param smooth Flag indicating anti-aliasing should be used.
+\param rect_dest destination coordinates
+\param center true center.
+*/
+static void transformSurfaceRGBA(SDL_Surface *src, SDL_Surface *dst, int isin, int icos,
+                                 int flipx, int flipy, int smooth,
+                                 const SDL_Rect *rect_dest,
+                                 const SDL_FPoint *center)
+{
+    int sw, sh;
+    int cx, cy;
+    tColorRGBA c00, c01, c10, c11, cswap;
+    tColorRGBA *pc, *sp;
+    int gap;
+    const int fp_half = (1 << 15);
+
+    /*
+     * Variable setup
+     */
+    sw = src->w - 1;
+    sh = src->h - 1;
+    pc = (tColorRGBA *)dst->pixels;
+    gap = dst->pitch - dst->w * 4;
+    cx = (int)(center->x * 65536.0);
+    cy = (int)(center->y * 65536.0);
+
+    /*
+     * Switch between interpolating and non-interpolating code
+     */
+    if (smooth) {
+        int y;
+        for (y = 0; y < dst->h; y++) {
+            int x;
+            double src_x = (rect_dest->x + 0 + 0.5 - center->x);
+            double src_y = (rect_dest->y + y + 0.5 - center->y);
+            int sdx = (int)((icos * src_x - isin * src_y) + cx - fp_half);
+            int sdy = (int)((isin * src_x + icos * src_y) + cy - fp_half);
+            for (x = 0; x < dst->w; x++) {
+                int dx = (sdx >> 16);
+                int dy = (sdy >> 16);
+                if (flipx) {
+                    dx = sw - dx;
+                }
+                if (flipy) {
+                    dy = sh - dy;
+                }
+                if ((dx > -1) && (dy > -1) && (dx < (src->w - 1)) && (dy < (src->h - 1))) {
+                    int ex, ey;
+                    int t1, t2;
+                    sp = (tColorRGBA *)((Uint8 *)src->pixels + src->pitch * dy) + dx;
+                    c00 = *sp;
+                    sp += 1;
+                    c01 = *sp;
+                    sp += (src->pitch / 4);
+                    c11 = *sp;
+                    sp -= 1;
+                    c10 = *sp;
+                    if (flipx) {
+                        cswap = c00;
+                        c00 = c01;
+                        c01 = cswap;
+                        cswap = c10;
+                        c10 = c11;
+                        c11 = cswap;
+                    }
+                    if (flipy) {
+                        cswap = c00;
+                        c00 = c10;
+                        c10 = cswap;
+                        cswap = c01;
+                        c01 = c11;
+                        c11 = cswap;
+                    }
+                    /*
+                     * Interpolate colors
+                     */
+                    ex = (sdx & 0xffff);
+                    ey = (sdy & 0xffff);
+                    t1 = ((((c01.r - c00.r) * ex) >> 16) + c00.r) & 0xff;
+                    t2 = ((((c11.r - c10.r) * ex) >> 16) + c10.r) & 0xff;
+                    pc->r = (Uint8)((((t2 - t1) * ey) >> 16) + t1);
+                    t1 = ((((c01.g - c00.g) * ex) >> 16) + c00.g) & 0xff;
+                    t2 = ((((c11.g - c10.g) * ex) >> 16) + c10.g) & 0xff;
+                    pc->g = (Uint8)((((t2 - t1) * ey) >> 16) + t1);
+                    t1 = ((((c01.b - c00.b) * ex) >> 16) + c00.b) & 0xff;
+                    t2 = ((((c11.b - c10.b) * ex) >> 16) + c10.b) & 0xff;
+                    pc->b = (Uint8)((((t2 - t1) * ey) >> 16) + t1);
+                    t1 = ((((c01.a - c00.a) * ex) >> 16) + c00.a) & 0xff;
+                    t2 = ((((c11.a - c10.a) * ex) >> 16) + c10.a) & 0xff;
+                    pc->a = (Uint8)((((t2 - t1) * ey) >> 16) + t1);
+                }
+                sdx += icos;
+                sdy += isin;
+                pc++;
+            }
+            pc = (tColorRGBA *)((Uint8 *)pc + gap);
+        }
+    } else {
+        int y;
+        for (y = 0; y < dst->h; y++) {
+            int x;
+            double src_x = (rect_dest->x + 0 + 0.5 - center->x);
+            double src_y = (rect_dest->y + y + 0.5 - center->y);
+            int sdx = (int)((icos * src_x - isin * src_y) + cx - fp_half);
+            int sdy = (int)((isin * src_x + icos * src_y) + cy - fp_half);
+            for (x = 0; x < dst->w; x++) {
+                int dx = (sdx >> 16);
+                int dy = (sdy >> 16);
+                if ((unsigned)dx < (unsigned)src->w && (unsigned)dy < (unsigned)src->h) {
+                    if (flipx) {
+                        dx = sw - dx;
+                    }
+                    if (flipy) {
+                        dy = sh - dy;
+                    }
+                    *pc = *((tColorRGBA *)((Uint8 *)src->pixels + src->pitch * dy) + dx);
+                }
+                sdx += icos;
+                sdy += isin;
+                pc++;
+            }
+            pc = (tColorRGBA *)((Uint8 *)pc + gap);
+        }
+    }
+}
+
+/**
+
+\brief Rotates and zooms 8 bit palette/Y 'src' surface to 'dst' surface without smoothing.
+
+Rotates and zooms 8 bit RGBA/ABGR 'src' surface to 'dst' surface based on the control
+parameters by scanning the destination surface.
+Assumes src and dst surfaces are of 8 bit depth.
+Assumes dst surface was allocated with the correct dimensions.
+
+\param src Source surface.
+\param dst Destination surface.
+\param isin Integer version of sine of angle.
+\param icos Integer version of cosine of angle.
+\param flipx Flag indicating horizontal mirroring should be applied.
+\param flipy Flag indicating vertical mirroring should be applied.
+\param rect_dest destination coordinates
+\param center true center.
+*/
+static void transformSurfaceY(SDL_Surface *src, SDL_Surface *dst, int isin, int icos, int flipx, int flipy,
+                              const SDL_Rect *rect_dest,
+                              const SDL_FPoint *center)
+{
+    int sw, sh;
+    int cx, cy;
+    tColorY *pc;
+    int gap;
+    const int fp_half = (1 << 15);
+    int y;
+
+    /*
+     * Variable setup
+     */
+    sw = src->w - 1;
+    sh = src->h - 1;
+    pc = (tColorY *)dst->pixels;
+    gap = dst->pitch - dst->w;
+    cx = (int)(center->x * 65536.0);
+    cy = (int)(center->y * 65536.0);
+
+    /*
+     * Clear surface to colorkey
+     */
+    SDL_memset(pc, (int)(get_colorkey(src) & 0xff), (size_t)dst->pitch * dst->h);
+    /*
+     * Iterate through destination surface
+     */
+    for (y = 0; y < dst->h; y++) {
+        int x;
+        double src_x = (rect_dest->x + 0 + 0.5 - center->x);
+        double src_y = (rect_dest->y + y + 0.5 - center->y);
+        int sdx = (int)((icos * src_x - isin * src_y) + cx - fp_half);
+        int sdy = (int)((isin * src_x + icos * src_y) + cy - fp_half);
+        for (x = 0; x < dst->w; x++) {
+            int dx = (sdx >> 16);
+            int dy = (sdy >> 16);
+            if ((unsigned)dx < (unsigned)src->w && (unsigned)dy < (unsigned)src->h) {
+                if (flipx) {
+                    dx = sw - dx;
+                }
+                if (flipy) {
+                    dy = sh - dy;
+                }
+                *pc = *((tColorY *)src->pixels + src->pitch * dy + dx);
+            }
+            sdx += icos;
+            sdy += isin;
+            pc++;
+        }
+        pc += gap;
+    }
+}
+
+/**
+\brief Rotates and zooms a surface with different horizontal and vertival scaling factors and optional anti-aliasing.
+
+Rotates a 32-bit or 8-bit 'src' surface to newly created 'dst' surface.
+'angle' is the rotation in degrees, 'center' the rotation center. If 'smooth' is set
+then the destination 32-bit surface is anti-aliased. 8-bit surfaces must have a colorkey. 32-bit
+surfaces must have a 8888 layout with red, green, blue and alpha masks (any ordering goes).
+The blend mode of the 'src' surface has some effects on generation of the 'dst' surface: The NONE
+mode will set the BLEND mode on the 'dst' surface. The MOD mode either generates a white 'dst'
+surface and sets the colorkey or fills the it with the colorkey before copying the pixels.
+When using the NONE and MOD modes, color and alpha modulation must be applied before using this function.
+
+\param src The surface to rotozoom.
+\param angle The angle to rotate in degrees.
+\param smooth Antialiasing flag; set to SMOOTHING_ON to enable.
+\param flipx Set to 1 to flip the image horizontally
+\param flipy Set to 1 to flip the image vertically
+\param rect_dest The destination rect bounding box
+\param cangle The angle cosine
+\param sangle The angle sine
+\param center The true coordinate of the center of rotation
+\return The new rotated surface.
+
+*/
+
+SDL_Surface *SDLgfx_rotateSurface(SDL_Surface *src, double angle, int smooth, int flipx, int flipy,
+                     const SDL_Rect *rect_dest, double cangle, double sangle, const SDL_FPoint *center)
+{
+    SDL_Surface *rz_dst;
+    int is8bit, angle90;
+    int i;
+    SDL_BlendMode blendmode;
+    Uint32 colorkey = 0;
+    int colorKeyAvailable = SDL_FALSE;
+    double sangleinv, cangleinv;
+
+    /* Sanity check */
+    if (src == NULL) {
+        return NULL;
+    }
+
+    if (SDL_SurfaceHasColorKey(src)) {
+        if (SDL_GetSurfaceColorKey(src, &colorkey) == 0) {
+            colorKeyAvailable = SDL_TRUE;
+        }
+    }
+    /* This function requires a 32-bit surface or 8-bit surface with a colorkey */
+    is8bit = src->format->BitsPerPixel == 8 && colorKeyAvailable;
+    if (!(is8bit || (src->format->BitsPerPixel == 32 && src->format->Amask))) {
+        return NULL;
+    }
+
+    /* Calculate target factors from sine/cosine and zoom */
+    sangleinv = sangle * 65536.0;
+    cangleinv = cangle * 65536.0;
+
+    /* Alloc space to completely contain the rotated surface */
+    rz_dst = NULL;
+    if (is8bit) {
+        /* Target surface is 8 bit */
+        rz_dst = SDL_CreateSurface(rect_dest->w, rect_dest->h + GUARD_ROWS, src->format->format);
+        if (rz_dst != NULL) {
+            if (src->format->palette) {
+                for (i = 0; i < src->format->palette->ncolors; i++) {
+                    rz_dst->format->palette->colors[i] = src->format->palette->colors[i];
+                }
+                rz_dst->format->palette->ncolors = src->format->palette->ncolors;
+            }
+        }
+    } else {
+        /* Target surface is 32 bit with source RGBA ordering */
+        rz_dst = SDL_CreateSurface(rect_dest->w, rect_dest->h + GUARD_ROWS, src->format->format);
+    }
+
+    /* Check target */
+    if (rz_dst == NULL) {
+        return NULL;
+    }
+
+    /* Adjust for guard rows */
+    rz_dst->h = rect_dest->h;
+
+    SDL_GetSurfaceBlendMode(src, &blendmode);
+
+    if (colorKeyAvailable == SDL_TRUE) {
+        /* If available, the colorkey will be used to discard the pixels that are outside of the rotated area. */
+        SDL_SetSurfaceColorKey(rz_dst, SDL_TRUE, colorkey);
+        SDL_FillSurfaceRect(rz_dst, NULL, colorkey);
+    } else if (blendmode == SDL_BLENDMODE_NONE) {
+        blendmode = SDL_BLENDMODE_BLEND;
+    } else if (blendmode == SDL_BLENDMODE_MOD || blendmode == SDL_BLENDMODE_MUL) {
+        /* Without a colorkey, the target texture has to be white for the MOD and MUL blend mode so
+         * that the pixels outside the rotated area don't affect the destination surface.
+         */
+        colorkey = SDL_MapRGBA(rz_dst->format, 255, 255, 255, 0);
+        SDL_FillSurfaceRect(rz_dst, NULL, colorkey);
+        /* Setting a white colorkey for the destination surface makes the final blit discard
+         * all pixels outside of the rotated area. This doesn't interfere with anything because
+         * white pixels are already a no-op and the MOD blend mode does not interact with alpha.
+         */
+        SDL_SetSurfaceColorKey(rz_dst, SDL_TRUE, colorkey);
+    }
+
+    SDL_SetSurfaceBlendMode(rz_dst, blendmode);
+
+    /* Lock source surface */
+    if (SDL_MUSTLOCK(src)) {
+        SDL_LockSurface(src);
+    }
+
+    /* check if the rotation is a multiple of 90 degrees so we can take a fast path and also somewhat reduce
+     * the off-by-one problem in transformSurfaceRGBA that expresses itself when the rotation is near
+     * multiples of 90 degrees.
+     */
+    angle90 = (int)(angle / 90);
+    if (angle90 == angle / 90) {
+        angle90 %= 4;
+        if (angle90 < 0) {
+            angle90 += 4; /* 0:0 deg, 1:90 deg, 2:180 deg, 3:270 deg */
+        }
+
+    } else {
+        angle90 = -1;
+    }
+
+    if (is8bit) {
+        /* Call the 8-bit transformation routine to do the rotation */
+        if (angle90 >= 0) {
+            transformSurfaceY90(src, rz_dst, angle90, flipx, flipy);
+        } else {
+            transformSurfaceY(src, rz_dst, (int)sangleinv, (int)cangleinv,
+                              flipx, flipy, rect_dest, center);
+        }
+    } else {
+        /* Call the 32-bit transformation routine to do the rotation */
+        if (angle90 >= 0) {
+            transformSurfaceRGBA90(src, rz_dst, angle90, flipx, flipy);
+        } else {
+            transformSurfaceRGBA(src, rz_dst, (int)sangleinv, (int)cangleinv,
+                                 flipx, flipy, smooth, rect_dest, center);
+        }
+    }
+
+    /* Unlock source surface */
+    if (SDL_MUSTLOCK(src)) {
+        SDL_UnlockSurface(src);
+    }
+
+    /* Return rotated surface */
+    return rz_dst;
+}
+
+#endif /* SDL_VIDEO_RENDER_SW && !SDL_RENDER_DISABLED */

external/sdl/SDL/src/render/software/SDL_rotate.h

@@ -0,0 +1,30 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef SDL_rotate_h_
+#define SDL_rotate_h_
+
+extern SDL_Surface *SDLgfx_rotateSurface(SDL_Surface *src, double angle, int smooth, int flipx, int flipy,
+                                         const SDL_Rect *rect_dest, double cangle, double sangle, const SDL_FPoint *center);
+extern void SDLgfx_rotozoomSurfaceSizeTrig(int width, int height, double angle, const SDL_FPoint *center,
+                                           SDL_Rect *rect_dest, double *cangle, double *sangle);
+
+#endif /* SDL_rotate_h_ */

external/sdl/SDL/src/render/software/SDL_triangle.c

@@ -0,0 +1,887 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#if SDL_VIDEO_RENDER_SW && !defined(SDL_RENDER_DISABLED)
+
+#include "SDL_triangle.h"
+
+#include "../../video/SDL_blit.h"
+
+/* fixed points bits precision
+ * Set to 1, so that it can start rendering with middle of a pixel precision.
+ * It doesn't need to be increased.
+ * But, if increased too much, it overflows (srcx, srcy) coordinates used for filling with texture.
+ * (which could be turned to int64).
+ */
+#define FP_BITS 1
+
+#define COLOR_EQ(c1, c2) ((c1).r == (c2).r && (c1).g == (c2).g && (c1).b == (c2).b && (c1).a == (c2).a)
+
+static void SDL_BlitTriangle_Slow(SDL_BlitInfo *info,
+                                  SDL_Point s2_x_area, SDL_Rect dstrect, int area, int bias_w0, int bias_w1, int bias_w2,
+                                  int d2d1_y, int d1d2_x, int d0d2_y, int d2d0_x, int d1d0_y, int d0d1_x,
+                                  int s2s0_x, int s2s1_x, int s2s0_y, int s2s1_y, int w0_row, int w1_row, int w2_row,
+                                  SDL_Color c0, SDL_Color c1, SDL_Color c2, int is_uniform);
+
+#if 0
+int SDL_BlitTriangle(SDL_Surface *src, const SDL_Point srcpoints[3], SDL_Surface *dst, const SDL_Point dstpoints[3])
+{
+    int i;
+    SDL_Point points[6];
+
+    if (src == NULL || dst == NULL) {
+        return -1;
+    }
+
+    for (i = 0; i < 3; i++) {
+        if (srcpoints[i].x < 0 || srcpoints[i].y < 0 || srcpoints[i].x >= src->w || srcpoints[i].y >= src->h) {
+            return SDL_SetError("Values of 'srcpoints' out of bounds");
+        }
+    }
+
+    points[0] = srcpoints[0];
+    points[1] = dstpoints[0];
+    points[2] = srcpoints[1];
+    points[3] = dstpoints[1];
+    points[4] = srcpoints[2];
+    points[5] = dstpoints[2];
+    for (i = 0; i < 3; i++) {
+        trianglepoint_2_fixedpoint(&points[2 * i + 1]);
+    }
+    return SDL_SW_BlitTriangle(src, dst, points);
+}
+
+int SDL_FillTriangle(SDL_Surface *dst, const SDL_Point points[3], Uint32 color)
+{
+    int i;
+    SDL_Point points_tmp[3];
+    if (dst == NULL) {
+        return -1;
+    }
+    for (i = 0; i < 3; i++) {
+        points_tmp[i] = points[i];
+        trianglepoint_2_fixedpoint(&points_tmp[i]);
+    }
+    return SDL_SW_FillTriangle(dst, points_tmp, SDL_BLENDMODE_NONE, color);
+}
+#endif
+
+/* cross product AB x AC */
+static int cross_product(const SDL_Point *a, const SDL_Point *b, int c_x, int c_y)
+{
+    return (b->x - a->x) * (c_y - a->y) - (b->y - a->y) * (c_x - a->x);
+}
+
+/* check for top left rules */
+static int is_top_left(const SDL_Point *a, const SDL_Point *b, int is_clockwise)
+{
+    if (is_clockwise) {
+        if (a->y == b->y && a->x < b->x) {
+            return 1;
+        }
+        if (b->y < a->y) {
+            return 1;
+        }
+    } else {
+        if (a->y == b->y && b->x < a->x) {
+            return 1;
+        }
+        if (a->y < b->y) {
+            return 1;
+        }
+    }
+    return 0;
+}
+
+void trianglepoint_2_fixedpoint(SDL_Point *a)
+{
+    a->x <<= FP_BITS;
+    a->y <<= FP_BITS;
+}
+
+/* bounding rect of three points (in fixed point) */
+static void bounding_rect_fixedpoint(const SDL_Point *a, const SDL_Point *b, const SDL_Point *c, SDL_Rect *r)
+{
+    int min_x = SDL_min(a->x, SDL_min(b->x, c->x));
+    int max_x = SDL_max(a->x, SDL_max(b->x, c->x));
+    int min_y = SDL_min(a->y, SDL_min(b->y, c->y));
+    int max_y = SDL_max(a->y, SDL_max(b->y, c->y));
+    /* points are in fixed point, shift back */
+    r->x = min_x >> FP_BITS;
+    r->y = min_y >> FP_BITS;
+    r->w = (max_x - min_x) >> FP_BITS;
+    r->h = (max_y - min_y) >> FP_BITS;
+}
+
+/* bounding rect of three points */
+static void bounding_rect(const SDL_Point *a, const SDL_Point *b, const SDL_Point *c, SDL_Rect *r)
+{
+    int min_x = SDL_min(a->x, SDL_min(b->x, c->x));
+    int max_x = SDL_max(a->x, SDL_max(b->x, c->x));
+    int min_y = SDL_min(a->y, SDL_min(b->y, c->y));
+    int max_y = SDL_max(a->y, SDL_max(b->y, c->y));
+    r->x = min_x;
+    r->y = min_y;
+    r->w = (max_x - min_x);
+    r->h = (max_y - min_y);
+}
+
+/* Triangle rendering, using Barycentric coordinates (w0, w1, w2)
+ *
+ * The cross product isn't computed from scratch at each iteration,
+ * but optimized using constant step increments
+ *
+ */
+
+#define TRIANGLE_BEGIN_LOOP                                                        \
+    {                                                                              \
+        int x, y;                                                                  \
+        for (y = 0; y < dstrect.h; y++) {                                          \
+            /* y start */                                                          \
+            int w0 = w0_row;                                                       \
+            int w1 = w1_row;                                                       \
+            int w2 = w2_row;                                                       \
+            for (x = 0; x < dstrect.w; x++) {                                      \
+                /* In triangle */                                                  \
+                if (w0 + bias_w0 >= 0 && w1 + bias_w1 >= 0 && w2 + bias_w2 >= 0) { \
+                    Uint8 *dptr = (Uint8 *)dst_ptr + x * dstbpp;
+
+/* Use 64 bits precision to prevent overflow when interpolating color / texture with wide triangles */
+#define TRIANGLE_GET_TEXTCOORD                                                          \
+    int srcx = (int)(((Sint64)w0 * s2s0_x + (Sint64)w1 * s2s1_x + s2_x_area.x) / area); \
+    int srcy = (int)(((Sint64)w0 * s2s0_y + (Sint64)w1 * s2s1_y + s2_x_area.y) / area);
+
+#define TRIANGLE_GET_MAPPED_COLOR                                                      \
+    Uint8 r = (Uint8)(((Sint64)w0 * c0.r + (Sint64)w1 * c1.r + (Sint64)w2 * c2.r) / area); \
+    Uint8 g = (Uint8)(((Sint64)w0 * c0.g + (Sint64)w1 * c1.g + (Sint64)w2 * c2.g) / area); \
+    Uint8 b = (Uint8)(((Sint64)w0 * c0.b + (Sint64)w1 * c1.b + (Sint64)w2 * c2.b) / area); \
+    Uint8 a = (Uint8)(((Sint64)w0 * c0.a + (Sint64)w1 * c1.a + (Sint64)w2 * c2.a) / area); \
+    Uint32 color = SDL_MapRGBA(format, r, g, b, a);
+
+#define TRIANGLE_GET_COLOR                                                             \
+    int r = (int)(((Sint64)w0 * c0.r + (Sint64)w1 * c1.r + (Sint64)w2 * c2.r) / area); \
+    int g = (int)(((Sint64)w0 * c0.g + (Sint64)w1 * c1.g + (Sint64)w2 * c2.g) / area); \
+    int b = (int)(((Sint64)w0 * c0.b + (Sint64)w1 * c1.b + (Sint64)w2 * c2.b) / area); \
+    int a = (int)(((Sint64)w0 * c0.a + (Sint64)w1 * c1.a + (Sint64)w2 * c2.a) / area);
+
+#define TRIANGLE_END_LOOP \
+    }                     \
+    /* x += 1 */          \
+    w0 += d2d1_y;         \
+    w1 += d0d2_y;         \
+    w2 += d1d0_y;         \
+    }                     \
+    /* y += 1 */          \
+    w0_row += d1d2_x;     \
+    w1_row += d2d0_x;     \
+    w2_row += d0d1_x;     \
+    dst_ptr += dst_pitch; \
+    }                     \
+    }
+
+int SDL_SW_FillTriangle(SDL_Surface *dst, SDL_Point *d0, SDL_Point *d1, SDL_Point *d2, SDL_BlendMode blend, SDL_Color c0, SDL_Color c1, SDL_Color c2)
+{
+    int ret = 0;
+    int dst_locked = 0;
+
+    SDL_Rect dstrect;
+
+    int dstbpp;
+    Uint8 *dst_ptr;
+    int dst_pitch;
+
+    int area, is_clockwise;
+
+    int d2d1_y, d1d2_x, d0d2_y, d2d0_x, d1d0_y, d0d1_x;
+    int w0_row, w1_row, w2_row;
+    int bias_w0, bias_w1, bias_w2;
+
+    int is_uniform;
+
+    SDL_Surface *tmp = NULL;
+
+    if (dst == NULL) {
+        return -1;
+    }
+
+    area = cross_product(d0, d1, d2->x, d2->y);
+
+    is_uniform = COLOR_EQ(c0, c1) && COLOR_EQ(c1, c2);
+
+    /* Flat triangle */
+    if (area == 0) {
+        return 0;
+    }
+
+    /* Lock the destination, if needed */
+    if (SDL_MUSTLOCK(dst)) {
+        if (SDL_LockSurface(dst) < 0) {
+            ret = -1;
+            goto end;
+        } else {
+            dst_locked = 1;
+        }
+    }
+
+    bounding_rect_fixedpoint(d0, d1, d2, &dstrect);
+
+    {
+        /* Clip triangle rect with surface rect */
+        SDL_Rect rect;
+        rect.x = 0;
+        rect.y = 0;
+        rect.w = dst->w;
+        rect.h = dst->h;
+        SDL_GetRectIntersection(&dstrect, &rect, &dstrect);
+    }
+
+    {
+        /* Clip triangle with surface clip rect */
+        SDL_Rect rect;
+        SDL_GetSurfaceClipRect(dst, &rect);
+        SDL_GetRectIntersection(&dstrect, &rect, &dstrect);
+    }
+
+    if (blend != SDL_BLENDMODE_NONE) {
+        int format = dst->format->format;
+
+        /* need an alpha format */
+        if (!dst->format->Amask) {
+            format = SDL_PIXELFORMAT_ARGB8888;
+        }
+
+        /* Use an intermediate surface */
+        tmp = SDL_CreateSurface(dstrect.w, dstrect.h, format);
+        if (tmp == NULL) {
+            ret = -1;
+            goto end;
+        }
+
+        if (blend == SDL_BLENDMODE_MOD) {
+            Uint32 c = SDL_MapRGBA(tmp->format, 255, 255, 255, 255);
+            SDL_FillSurfaceRect(tmp, NULL, c);
+        }
+
+        SDL_SetSurfaceBlendMode(tmp, blend);
+
+        dstbpp = tmp->format->BytesPerPixel;
+        dst_ptr = tmp->pixels;
+        dst_pitch = tmp->pitch;
+
+    } else {
+        /* Write directly to destination surface */
+        dstbpp = dst->format->BytesPerPixel;
+        dst_ptr = (Uint8 *)dst->pixels + dstrect.x * dstbpp + dstrect.y * dst->pitch;
+        dst_pitch = dst->pitch;
+    }
+
+    is_clockwise = area > 0;
+    area = SDL_abs(area);
+
+    d2d1_y = (d1->y - d2->y) << FP_BITS;
+    d0d2_y = (d2->y - d0->y) << FP_BITS;
+    d1d0_y = (d0->y - d1->y) << FP_BITS;
+    d1d2_x = (d2->x - d1->x) << FP_BITS;
+    d2d0_x = (d0->x - d2->x) << FP_BITS;
+    d0d1_x = (d1->x - d0->x) << FP_BITS;
+
+    /* Starting point for rendering, at the middle of a pixel */
+    {
+        SDL_Point p;
+        p.x = dstrect.x;
+        p.y = dstrect.y;
+        trianglepoint_2_fixedpoint(&p);
+        p.x += (1 << FP_BITS) / 2;
+        p.y += (1 << FP_BITS) / 2;
+        w0_row = cross_product(d1, d2, p.x, p.y);
+        w1_row = cross_product(d2, d0, p.x, p.y);
+        w2_row = cross_product(d0, d1, p.x, p.y);
+    }
+
+    /* Handle anti-clockwise triangles */
+    if (!is_clockwise) {
+        d2d1_y *= -1;
+        d0d2_y *= -1;
+        d1d0_y *= -1;
+        d1d2_x *= -1;
+        d2d0_x *= -1;
+        d0d1_x *= -1;
+        w0_row *= -1;
+        w1_row *= -1;
+        w2_row *= -1;
+    }
+
+    /* Add a bias to respect top-left rasterization rule */
+    bias_w0 = (is_top_left(d1, d2, is_clockwise) ? 0 : -1);
+    bias_w1 = (is_top_left(d2, d0, is_clockwise) ? 0 : -1);
+    bias_w2 = (is_top_left(d0, d1, is_clockwise) ? 0 : -1);
+
+    if (is_uniform) {
+        Uint32 color;
+        if (tmp) {
+            if (dst->format->Amask) {
+                color = SDL_MapRGBA(tmp->format, c0.r, c0.g, c0.b, c0.a);
+            } else {
+                // color = SDL_MapRGB(tmp->format, c0.r, c0.g, c0.b);
+                color = SDL_MapRGBA(tmp->format, c0.r, c0.g, c0.b, c0.a);
+            }
+        } else {
+            color = SDL_MapRGBA(dst->format, c0.r, c0.g, c0.b, c0.a);
+        }
+
+        if (dstbpp == 4) {
+            TRIANGLE_BEGIN_LOOP
+            {
+                *(Uint32 *)dptr = color;
+            }
+            TRIANGLE_END_LOOP
+        } else if (dstbpp == 3) {
+            TRIANGLE_BEGIN_LOOP
+            {
+                Uint8 *s = (Uint8 *)&color;
+                dptr[0] = s[0];
+                dptr[1] = s[1];
+                dptr[2] = s[2];
+            }
+            TRIANGLE_END_LOOP
+        } else if (dstbpp == 2) {
+            TRIANGLE_BEGIN_LOOP
+            {
+                *(Uint16 *)dptr = (Uint16)color;
+            }
+            TRIANGLE_END_LOOP
+        } else if (dstbpp == 1) {
+            TRIANGLE_BEGIN_LOOP
+            {
+                *dptr = (Uint8)color;
+            }
+            TRIANGLE_END_LOOP
+        }
+    } else {
+        SDL_PixelFormat *format = dst->format;
+        if (tmp) {
+            format = tmp->format;
+        }
+        if (dstbpp == 4) {
+            TRIANGLE_BEGIN_LOOP
+            {
+                TRIANGLE_GET_MAPPED_COLOR
+                *(Uint32 *)dptr = color;
+            }
+            TRIANGLE_END_LOOP
+        } else if (dstbpp == 3) {
+            TRIANGLE_BEGIN_LOOP
+            {
+                TRIANGLE_GET_MAPPED_COLOR
+                Uint8 *s = (Uint8 *)&color;
+                dptr[0] = s[0];
+                dptr[1] = s[1];
+                dptr[2] = s[2];
+            }
+            TRIANGLE_END_LOOP
+        } else if (dstbpp == 2) {
+            TRIANGLE_BEGIN_LOOP
+            {
+                TRIANGLE_GET_MAPPED_COLOR
+                *(Uint16 *)dptr = (Uint16)color;
+            }
+            TRIANGLE_END_LOOP
+        } else if (dstbpp == 1) {
+            TRIANGLE_BEGIN_LOOP
+            {
+                TRIANGLE_GET_MAPPED_COLOR
+                *dptr = (Uint8)color;
+            }
+            TRIANGLE_END_LOOP
+        }
+    }
+
+    if (tmp) {
+        SDL_BlitSurface(tmp, NULL, dst, &dstrect);
+        SDL_DestroySurface(tmp);
+    }
+
+end:
+    if (dst_locked) {
+        SDL_UnlockSurface(dst);
+    }
+
+    return ret;
+}
+
+int SDL_SW_BlitTriangle(
+    SDL_Surface *src,
+    SDL_Point *s0, SDL_Point *s1, SDL_Point *s2,
+    SDL_Surface *dst,
+    SDL_Point *d0, SDL_Point *d1, SDL_Point *d2,
+    SDL_Color c0, SDL_Color c1, SDL_Color c2)
+{
+    int ret = 0;
+    int src_locked = 0;
+    int dst_locked = 0;
+
+    SDL_BlendMode blend;
+
+    SDL_Rect dstrect;
+
+    SDL_Point s2_x_area;
+
+    int dstbpp;
+    Uint8 *dst_ptr;
+    int dst_pitch;
+
+    int *src_ptr;
+    int src_pitch;
+
+    int area, is_clockwise;
+
+    int d2d1_y, d1d2_x, d0d2_y, d2d0_x, d1d0_y, d0d1_x;
+    int s2s0_x, s2s1_x, s2s0_y, s2s1_y;
+
+    int w0_row, w1_row, w2_row;
+    int bias_w0, bias_w1, bias_w2;
+
+    int is_uniform;
+
+    int has_modulation;
+
+    if (src == NULL || dst == NULL) {
+        return -1;
+    }
+
+    area = cross_product(d0, d1, d2->x, d2->y);
+
+    /* Flat triangle */
+    if (area == 0) {
+        return 0;
+    }
+
+    /* Lock the destination, if needed */
+    if (SDL_MUSTLOCK(dst)) {
+        if (SDL_LockSurface(dst) < 0) {
+            ret = -1;
+            goto end;
+        } else {
+            dst_locked = 1;
+        }
+    }
+
+    /* Lock the source, if needed */
+    if (SDL_MUSTLOCK(src)) {
+        if (SDL_LockSurface(src) < 0) {
+            ret = -1;
+            goto end;
+        } else {
+            src_locked = 1;
+        }
+    }
+
+    is_uniform = COLOR_EQ(c0, c1) && COLOR_EQ(c1, c2);
+
+    bounding_rect_fixedpoint(d0, d1, d2, &dstrect);
+
+    SDL_GetSurfaceBlendMode(src, &blend);
+
+    /* TRIANGLE_GET_TEXTCOORD interpolates up to the max values included, so reduce by 1 */
+    {
+        SDL_Rect srcrect;
+        int maxx, maxy;
+        bounding_rect(s0, s1, s2, &srcrect);
+        maxx = srcrect.x + srcrect.w;
+        maxy = srcrect.y + srcrect.h;
+        if (srcrect.w > 0) {
+            if (s0->x == maxx) {
+                s0->x--;
+            }
+            if (s1->x == maxx) {
+                s1->x--;
+            }
+            if (s2->x == maxx) {
+                s2->x--;
+            }
+        }
+        if (srcrect.h > 0) {
+            if (s0->y == maxy) {
+                s0->y--;
+            }
+            if (s1->y == maxy) {
+                s1->y--;
+            }
+            if (s2->y == maxy) {
+                s2->y--;
+            }
+        }
+    }
+
+    if (is_uniform) {
+        // SDL_GetSurfaceColorMod(src, &r, &g, &b);
+        has_modulation = c0.r != 255 || c0.g != 255 || c0.b != 255 || c0.a != 255;
+    } else {
+        has_modulation = SDL_TRUE;
+    }
+
+    {
+        /* Clip triangle rect with surface rect */
+        SDL_Rect rect;
+        rect.x = 0;
+        rect.y = 0;
+        rect.w = dst->w;
+        rect.h = dst->h;
+
+        SDL_GetRectIntersection(&dstrect, &rect, &dstrect);
+    }
+
+    {
+        /* Clip triangle with surface clip rect */
+        SDL_Rect rect;
+        SDL_GetSurfaceClipRect(dst, &rect);
+        SDL_GetRectIntersection(&dstrect, &rect, &dstrect);
+    }
+
+    /* Set destination pointer */
+    dstbpp = dst->format->BytesPerPixel;
+    dst_ptr = (Uint8 *)dst->pixels + dstrect.x * dstbpp + dstrect.y * dst->pitch;
+    dst_pitch = dst->pitch;
+
+    /* Set source pointer */
+    src_ptr = src->pixels;
+    src_pitch = src->pitch;
+
+    is_clockwise = area > 0;
+    area = SDL_abs(area);
+
+    d2d1_y = (d1->y - d2->y) << FP_BITS;
+    d0d2_y = (d2->y - d0->y) << FP_BITS;
+    d1d0_y = (d0->y - d1->y) << FP_BITS;
+
+    d1d2_x = (d2->x - d1->x) << FP_BITS;
+    d2d0_x = (d0->x - d2->x) << FP_BITS;
+    d0d1_x = (d1->x - d0->x) << FP_BITS;
+
+    s2s0_x = s0->x - s2->x;
+    s2s1_x = s1->x - s2->x;
+    s2s0_y = s0->y - s2->y;
+    s2s1_y = s1->y - s2->y;
+
+    /* Starting point for rendering, at the middle of a pixel */
+    {
+        SDL_Point p;
+        p.x = dstrect.x;
+        p.y = dstrect.y;
+        trianglepoint_2_fixedpoint(&p);
+        p.x += (1 << FP_BITS) / 2;
+        p.y += (1 << FP_BITS) / 2;
+        w0_row = cross_product(d1, d2, p.x, p.y);
+        w1_row = cross_product(d2, d0, p.x, p.y);
+        w2_row = cross_product(d0, d1, p.x, p.y);
+    }
+
+    /* Handle anti-clockwise triangles */
+    if (!is_clockwise) {
+        d2d1_y *= -1;
+        d0d2_y *= -1;
+        d1d0_y *= -1;
+        d1d2_x *= -1;
+        d2d0_x *= -1;
+        d0d1_x *= -1;
+        w0_row *= -1;
+        w1_row *= -1;
+        w2_row *= -1;
+    }
+
+    /* Add a bias to respect top-left rasterization rule */
+    bias_w0 = (is_top_left(d1, d2, is_clockwise) ? 0 : -1);
+    bias_w1 = (is_top_left(d2, d0, is_clockwise) ? 0 : -1);
+    bias_w2 = (is_top_left(d0, d1, is_clockwise) ? 0 : -1);
+
+    /* precompute constant 's2->x * area' used in TRIANGLE_GET_TEXTCOORD */
+    s2_x_area.x = s2->x * area;
+    s2_x_area.y = s2->y * area;
+
+    if (blend != SDL_BLENDMODE_NONE || src->format->format != dst->format->format || has_modulation || !is_uniform) {
+        /* Use SDL_BlitTriangle_Slow */
+
+        SDL_BlitInfo *info = &src->map->info;
+        SDL_BlitInfo tmp_info;
+
+        SDL_zero(tmp_info);
+
+        tmp_info.src_fmt = src->format;
+        tmp_info.dst_fmt = dst->format;
+        tmp_info.flags = info->flags;
+        /*
+        tmp_info.r = info->r;
+        tmp_info.g = info->g;
+        tmp_info.b = info->b;
+        tmp_info.a = info->a;
+        */
+        tmp_info.r = c0.r;
+        tmp_info.g = c0.g;
+        tmp_info.b = c0.b;
+        tmp_info.a = c0.a;
+
+        tmp_info.flags &= ~(SDL_COPY_MODULATE_COLOR | SDL_COPY_MODULATE_ALPHA);
+
+        if (c0.r != 255 || c1.r != 255 || c2.r != 255 ||
+            c0.g != 255 || c1.g != 255 || c2.g != 255 ||
+            c0.b != 255 || c1.b != 255 || c2.b != 255) {
+            tmp_info.flags |= SDL_COPY_MODULATE_COLOR;
+        }
+
+        if (c0.a != 255 || c1.a != 255 || c2.a != 255) {
+            tmp_info.flags |= SDL_COPY_MODULATE_ALPHA;
+        }
+
+        tmp_info.colorkey = info->colorkey;
+
+        /* src */
+        tmp_info.src = (Uint8 *)src_ptr;
+        tmp_info.src_pitch = src_pitch;
+
+        /* dst */
+        tmp_info.dst = dst_ptr;
+        tmp_info.dst_pitch = dst_pitch;
+
+        SDL_BlitTriangle_Slow(&tmp_info, s2_x_area, dstrect, area, bias_w0, bias_w1, bias_w2,
+                              d2d1_y, d1d2_x, d0d2_y, d2d0_x, d1d0_y, d0d1_x,
+                              s2s0_x, s2s1_x, s2s0_y, s2s1_y, w0_row, w1_row, w2_row,
+                              c0, c1, c2, is_uniform);
+
+        goto end;
+    }
+
+    if (dstbpp == 4) {
+        TRIANGLE_BEGIN_LOOP
+        {
+            TRIANGLE_GET_TEXTCOORD
+            Uint32 *sptr = (Uint32 *)((Uint8 *)src_ptr + srcy * src_pitch);
+            *(Uint32 *)dptr = sptr[srcx];
+        }
+        TRIANGLE_END_LOOP
+    } else if (dstbpp == 3) {
+        TRIANGLE_BEGIN_LOOP
+        {
+            TRIANGLE_GET_TEXTCOORD
+            Uint8 *sptr = (Uint8 *)src_ptr + srcy * src_pitch;
+            dptr[0] = sptr[3 * srcx];
+            dptr[1] = sptr[3 * srcx + 1];
+            dptr[2] = sptr[3 * srcx + 2];
+        }
+        TRIANGLE_END_LOOP
+    } else if (dstbpp == 2) {
+        TRIANGLE_BEGIN_LOOP
+        {
+            TRIANGLE_GET_TEXTCOORD
+            Uint16 *sptr = (Uint16 *)((Uint8 *)src_ptr + srcy * src_pitch);
+            *(Uint16 *)dptr = sptr[srcx];
+        }
+        TRIANGLE_END_LOOP
+    } else if (dstbpp == 1) {
+        TRIANGLE_BEGIN_LOOP
+        {
+            TRIANGLE_GET_TEXTCOORD
+            Uint8 *sptr = (Uint8 *)src_ptr + srcy * src_pitch;
+            *dptr = sptr[srcx];
+        }
+        TRIANGLE_END_LOOP
+    }
+
+end:
+    if (dst_locked) {
+        SDL_UnlockSurface(dst);
+    }
+    if (src_locked) {
+        SDL_UnlockSurface(src);
+    }
+
+    return ret;
+}
+
+#define FORMAT_ALPHA                0
+#define FORMAT_NO_ALPHA             -1
+#define FORMAT_2101010              1
+#define FORMAT_HAS_ALPHA(format)    format == 0
+#define FORMAT_HAS_NO_ALPHA(format) format < 0
+static int detect_format(SDL_PixelFormat *pf)
+{
+    if (pf->format == SDL_PIXELFORMAT_ARGB2101010) {
+        return FORMAT_2101010;
+    } else if (pf->Amask) {
+        return FORMAT_ALPHA;
+    } else {
+        return FORMAT_NO_ALPHA;
+    }
+}
+
+static void SDL_BlitTriangle_Slow(SDL_BlitInfo *info,
+                                  SDL_Point s2_x_area, SDL_Rect dstrect, int area, int bias_w0, int bias_w1, int bias_w2,
+                                  int d2d1_y, int d1d2_x, int d0d2_y, int d2d0_x, int d1d0_y, int d0d1_x,
+                                  int s2s0_x, int s2s1_x, int s2s0_y, int s2s1_y, int w0_row, int w1_row, int w2_row,
+                                  SDL_Color c0, SDL_Color c1, SDL_Color c2, int is_uniform)
+{
+    const int flags = info->flags;
+    Uint32 modulateR = info->r;
+    Uint32 modulateG = info->g;
+    Uint32 modulateB = info->b;
+    Uint32 modulateA = info->a;
+    Uint32 srcpixel;
+    Uint32 srcR, srcG, srcB, srcA;
+    Uint32 dstpixel;
+    Uint32 dstR, dstG, dstB, dstA;
+    SDL_PixelFormat *src_fmt = info->src_fmt;
+    SDL_PixelFormat *dst_fmt = info->dst_fmt;
+    int srcbpp = src_fmt->BytesPerPixel;
+    int dstbpp = dst_fmt->BytesPerPixel;
+    int srcfmt_val;
+    int dstfmt_val;
+    Uint32 rgbmask = ~src_fmt->Amask;
+    Uint32 ckey = info->colorkey & rgbmask;
+
+    Uint8 *dst_ptr = info->dst;
+    int dst_pitch = info->dst_pitch;
+
+    srcfmt_val = detect_format(src_fmt);
+    dstfmt_val = detect_format(dst_fmt);
+
+    TRIANGLE_BEGIN_LOOP
+    {
+        Uint8 *src;
+        Uint8 *dst = dptr;
+        TRIANGLE_GET_TEXTCOORD
+        src = (info->src + (srcy * info->src_pitch) + (srcx * srcbpp));
+        if (FORMAT_HAS_ALPHA(srcfmt_val)) {
+            DISEMBLE_RGBA(src, srcbpp, src_fmt, srcpixel, srcR, srcG, srcB, srcA);
+        } else if (FORMAT_HAS_NO_ALPHA(srcfmt_val)) {
+            DISEMBLE_RGB(src, srcbpp, src_fmt, srcpixel, srcR, srcG, srcB);
+            srcA = 0xFF;
+        } else {
+            /* SDL_PIXELFORMAT_ARGB2101010 */
+            srcpixel = *((Uint32 *)(src));
+            RGBA_FROM_ARGB2101010(srcpixel, srcR, srcG, srcB, srcA);
+        }
+        if (flags & SDL_COPY_COLORKEY) {
+            /* srcpixel isn't set for 24 bpp */
+            if (srcbpp == 3) {
+                srcpixel = (srcR << src_fmt->Rshift) |
+                           (srcG << src_fmt->Gshift) | (srcB << src_fmt->Bshift);
+            }
+            if ((srcpixel & rgbmask) == ckey) {
+                continue;
+            }
+        }
+        if (FORMAT_HAS_ALPHA(dstfmt_val)) {
+            DISEMBLE_RGBA(dst, dstbpp, dst_fmt, dstpixel, dstR, dstG, dstB, dstA);
+        } else if (FORMAT_HAS_NO_ALPHA(dstfmt_val)) {
+            DISEMBLE_RGB(dst, dstbpp, dst_fmt, dstpixel, dstR, dstG, dstB);
+            dstA = 0xFF;
+        } else {
+            /* SDL_PIXELFORMAT_ARGB2101010 */
+            dstpixel = *((Uint32 *)(dst));
+            RGBA_FROM_ARGB2101010(dstpixel, dstR, dstG, dstB, dstA);
+        }
+
+        if (!is_uniform) {
+            TRIANGLE_GET_COLOR
+            modulateR = r;
+            modulateG = g;
+            modulateB = b;
+            modulateA = a;
+        }
+
+        if (flags & SDL_COPY_MODULATE_COLOR) {
+            srcR = (srcR * modulateR) / 255;
+            srcG = (srcG * modulateG) / 255;
+            srcB = (srcB * modulateB) / 255;
+        }
+        if (flags & SDL_COPY_MODULATE_ALPHA) {
+            srcA = (srcA * modulateA) / 255;
+        }
+        if (flags & (SDL_COPY_BLEND | SDL_COPY_ADD)) {
+            /* This goes away if we ever use premultiplied alpha */
+            if (srcA < 255) {
+                srcR = (srcR * srcA) / 255;
+                srcG = (srcG * srcA) / 255;
+                srcB = (srcB * srcA) / 255;
+            }
+        }
+        switch (flags & (SDL_COPY_BLEND | SDL_COPY_ADD | SDL_COPY_MOD | SDL_COPY_MUL)) {
+        case 0:
+            dstR = srcR;
+            dstG = srcG;
+            dstB = srcB;
+            dstA = srcA;
+            break;
+        case SDL_COPY_BLEND:
+            dstR = srcR + ((255 - srcA) * dstR) / 255;
+            dstG = srcG + ((255 - srcA) * dstG) / 255;
+            dstB = srcB + ((255 - srcA) * dstB) / 255;
+            dstA = srcA + ((255 - srcA) * dstA) / 255;
+            break;
+        case SDL_COPY_ADD:
+            dstR = srcR + dstR;
+            if (dstR > 255) {
+                dstR = 255;
+            }
+            dstG = srcG + dstG;
+            if (dstG > 255) {
+                dstG = 255;
+            }
+            dstB = srcB + dstB;
+            if (dstB > 255) {
+                dstB = 255;
+            }
+            break;
+        case SDL_COPY_MOD:
+            dstR = (srcR * dstR) / 255;
+            dstG = (srcG * dstG) / 255;
+            dstB = (srcB * dstB) / 255;
+            break;
+        case SDL_COPY_MUL:
+            dstR = ((srcR * dstR) + (dstR * (255 - srcA))) / 255;
+            if (dstR > 255) {
+                dstR = 255;
+            }
+            dstG = ((srcG * dstG) + (dstG * (255 - srcA))) / 255;
+            if (dstG > 255) {
+                dstG = 255;
+            }
+            dstB = ((srcB * dstB) + (dstB * (255 - srcA))) / 255;
+            if (dstB > 255) {
+                dstB = 255;
+            }
+            break;
+        }
+        if (FORMAT_HAS_ALPHA(dstfmt_val)) {
+            ASSEMBLE_RGBA(dst, dstbpp, dst_fmt, dstR, dstG, dstB, dstA);
+        } else if (FORMAT_HAS_NO_ALPHA(dstfmt_val)) {
+            ASSEMBLE_RGB(dst, dstbpp, dst_fmt, dstR, dstG, dstB);
+        } else {
+            /* SDL_PIXELFORMAT_ARGB2101010 */
+            Uint32 pixel;
+            ARGB2101010_FROM_RGBA(pixel, dstR, dstG, dstB, dstA);
+            *(Uint32 *)dst = pixel;
+        }
+    }
+    TRIANGLE_END_LOOP
+}
+
+#endif /* SDL_VIDEO_RENDER_SW && !SDL_RENDER_DISABLED */

external/sdl/SDL/src/render/software/SDL_triangle.h

@@ -0,0 +1,40 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef SDL_triangle_h_
+#define SDL_triangle_h_
+
+#include "SDL_internal.h"
+
+extern int SDL_SW_FillTriangle(SDL_Surface *dst,
+                               SDL_Point *d0, SDL_Point *d1, SDL_Point *d2,
+                               SDL_BlendMode blend, SDL_Color c0, SDL_Color c1, SDL_Color c2);
+
+extern int SDL_SW_BlitTriangle(
+    SDL_Surface *src,
+    SDL_Point *s0, SDL_Point *s1, SDL_Point *s2,
+    SDL_Surface *dst,
+    SDL_Point *d0, SDL_Point *d1, SDL_Point *d2,
+    SDL_Color c0, SDL_Color c1, SDL_Color c2);
+
+extern void trianglepoint_2_fixedpoint(SDL_Point *a);
+
+#endif /* SDL_triangle_h_ */

external/sdl/SDL/src/render/vitagxm/SDL_render_vita_gxm_memory.c

@@ -0,0 +1,177 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#include "SDL_internal.h"
+
+#ifdef SDL_VIDEO_RENDER_VITA_GXM
+
+#include "SDL_render_vita_gxm_memory.h"
+
+void *vita_mem_alloc(unsigned int type, unsigned int size, unsigned int alignment, unsigned int attribs, SceUID *uid)
+{
+    void *mem;
+
+    if (type == SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW) {
+        size = ALIGN(size, 256 * 1024);
+    } else {
+        size = ALIGN(size, 4 * 1024);
+    }
+
+    *uid = sceKernelAllocMemBlock("gpu_mem", type, size, NULL);
+
+    if (*uid < 0) {
+        return NULL;
+    }
+
+    if (sceKernelGetMemBlockBase(*uid, &mem) < 0) {
+        return NULL;
+    }
+
+    if (sceGxmMapMemory(mem, size, attribs) < 0) {
+        return NULL;
+    }
+
+    return mem;
+}
+
+void vita_mem_free(SceUID uid)
+{
+    void *mem = NULL;
+    if (sceKernelGetMemBlockBase(uid, &mem) < 0) {
+        return;
+    }
+    sceGxmUnmapMemory(mem);
+    sceKernelFreeMemBlock(uid);
+}
+
+void *vita_gpu_mem_alloc(VITA_GXM_RenderData *data, unsigned int size)
+{
+    void *mem;
+
+    if (data->texturePool == NULL) {
+        int poolsize;
+        int ret;
+        SceKernelFreeMemorySizeInfo info;
+        info.size = sizeof(SceKernelFreeMemorySizeInfo);
+        sceKernelGetFreeMemorySize(&info);
+
+        poolsize = ALIGN(info.size_cdram, 256 * 1024);
+        if (poolsize > info.size_cdram) {
+            poolsize = ALIGN(info.size_cdram - 256 * 1024, 256 * 1024);
+        }
+        data->texturePoolUID = sceKernelAllocMemBlock("gpu_texture_pool", SCE_KERNEL_MEMBLOCK_TYPE_USER_CDRAM_RW, poolsize, NULL);
+        if (data->texturePoolUID < 0) {
+            return NULL;
+        }
+
+        ret = sceKernelGetMemBlockBase(data->texturePoolUID, &mem);
+        if (ret < 0) {
+            return NULL;
+        }
+        data->texturePool = sceClibMspaceCreate(mem, poolsize);
+
+        if (data->texturePool == NULL) {
+            return NULL;
+        }
+        ret = sceGxmMapMemory(mem, poolsize, SCE_GXM_MEMORY_ATTRIB_READ | SCE_GXM_MEMORY_ATTRIB_WRITE);
+        if (ret < 0) {
+            return NULL;
+        }
+    }
+    return sceClibMspaceMemalign(data->texturePool, SCE_GXM_TEXTURE_ALIGNMENT, size);
+}
+
+void vita_gpu_mem_free(VITA_GXM_RenderData *data, void *ptr)
+{
+    if (data->texturePool != NULL) {
+        sceClibMspaceFree(data->texturePool, ptr);
+    }
+}
+
+void vita_gpu_mem_destroy(VITA_GXM_RenderData *data)
+{
+    void *mem = NULL;
+    if (data->texturePool != NULL) {
+        sceClibMspaceDestroy(data->texturePool);
+        data->texturePool = NULL;
+        if (sceKernelGetMemBlockBase(data->texturePoolUID, &mem) < 0) {
+            return;
+        }
+        sceGxmUnmapMemory(mem);
+        sceKernelFreeMemBlock(data->texturePoolUID);
+    }
+}
+
+void *vita_mem_vertex_usse_alloc(unsigned int size, SceUID *uid, unsigned int *usse_offset)
+{
+    void *mem = NULL;
+
+    size = ALIGN(size, 4096);
+    *uid = sceKernelAllocMemBlock("vertex_usse", SCE_KERNEL_MEMBLOCK_TYPE_USER_RW_UNCACHE, size, NULL);
+
+    if (sceKernelGetMemBlockBase(*uid, &mem) < 0) {
+        return NULL;
+    }
+    if (sceGxmMapVertexUsseMemory(mem, size, usse_offset) < 0) {
+        return NULL;
+    }
+
+    return mem;
+}
+
+void vita_mem_vertex_usse_free(SceUID uid)
+{
+    void *mem = NULL;
+    if (sceKernelGetMemBlockBase(uid, &mem) < 0) {
+        return;
+    }
+    sceGxmUnmapVertexUsseMemory(mem);
+    sceKernelFreeMemBlock(uid);
+}
+
+void *vita_mem_fragment_usse_alloc(unsigned int size, SceUID *uid, unsigned int *usse_offset)
+{
+    void *mem = NULL;
+
+    size = ALIGN(size, 4096);
+    *uid = sceKernelAllocMemBlock("fragment_usse", SCE_KERNEL_MEMBLOCK_TYPE_USER_RW_UNCACHE, size, NULL);
+
+    if (sceKernelGetMemBlockBase(*uid, &mem) < 0) {
+        return NULL;
+    }
+    if (sceGxmMapFragmentUsseMemory(mem, size, usse_offset) < 0) {
+        return NULL;
+    }
+
+    return mem;
+}
+
+void vita_mem_fragment_usse_free(SceUID uid)
+{
+    void *mem = NULL;
+    if (sceKernelGetMemBlockBase(uid, &mem) < 0) {
+        return;
+    }
+    sceGxmUnmapFragmentUsseMemory(mem);
+    sceKernelFreeMemBlock(uid);
+}
+
+#endif /* SDL_VIDEO_RENDER_VITA_GXM */

external/sdl/SDL/src/render/vitagxm/SDL_render_vita_gxm_memory.h

@@ -0,0 +1,42 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef SDL_RENDER_VITA_GXM_MEMORY_H
+#define SDL_RENDER_VITA_GXM_MEMORY_H
+
+#include <psp2/gxm.h>
+#include <psp2/types.h>
+#include <psp2/kernel/sysmem.h>
+#include "SDL_render_vita_gxm_types.h"
+
+#define ALIGN(x, a) (((x) + ((a)-1)) & ~((a)-1))
+
+void *vita_mem_alloc(unsigned int type, unsigned int size, unsigned int alignment, unsigned int attribs, SceUID *uid);
+void vita_mem_free(SceUID uid);
+void *vita_gpu_mem_alloc(VITA_GXM_RenderData *data, unsigned int size);
+void vita_gpu_mem_free(VITA_GXM_RenderData *data, void *ptr);
+void vita_gpu_mem_destroy(VITA_GXM_RenderData *data);
+void *vita_mem_vertex_usse_alloc(unsigned int size, SceUID *uid, unsigned int *usse_offset);
+void vita_mem_vertex_usse_free(SceUID uid);
+void *vita_mem_fragment_usse_alloc(unsigned int size, SceUID *uid, unsigned int *usse_offset);
+void vita_mem_fragment_usse_free(SceUID uid);
+
+#endif /* SDL_RENDER_VITA_GXM_MEMORY_H */

external/sdl/SDL/src/render/vitagxm/SDL_render_vita_gxm_shaders.h

@@ -0,0 +1,282 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef SDL_RENDER_VITA_GXM_SHADERS_H
+#define SDL_RENDER_VITA_GXM_SHADERS_H
+
+#include <psp2/gxm.h>
+
+/* *INDENT-OFF* */ /* clang-format off */
+
+#define gxm_shader_clear_f_size 232
+static const unsigned char gxm_shader_clear_f[gxm_shader_clear_f_size] = {
+    0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x50, 0x03, 
+    0xe8, 0x00, 0x00, 0x00, 0xa2, 0x55, 0x22, 0x3e, 
+    0xc6, 0x7e, 0x77, 0xf1, 0x01, 0x00, 0x18, 0x00, 
+    0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 
+    0xa4, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 
+    0x02, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 
+    0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x68, 0x00, 0x00, 0x00, 0x64, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 
+    0x5c, 0x00, 0x00, 0x00, 0xc0, 0x3d, 0x03, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 
+    0x01, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x04, 
+    0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x07, 0x44, 0xfa, 0x02, 0x80, 0x19, 0xf0, 
+    0x7e, 0x0d, 0x80, 0x40, 0x0e, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x04, 0x00, 0x10, 0x00, 0x00, 0x00, 
+    0x01, 0xe4, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x75, 0x43, 0x6c, 0x65, 
+    0x61, 0x72, 0x43, 0x6f, 0x6c, 0x6f, 0x72, 0x00, 
+};
+
+#define gxm_shader_clear_v_size 252
+static const unsigned char gxm_shader_clear_v[gxm_shader_clear_v_size] = {
+    0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x50, 0x03, 
+    0xfa, 0x00, 0x00, 0x00, 0xdc, 0x25, 0x34, 0x74, 
+    0x53, 0x4a, 0x7a, 0x5b, 0x04, 0x00, 0x19, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 
+    0xb8, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 
+    0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x01, 0x00, 0x04, 0x00, 0x00, 0x00, 
+    0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x74, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x78, 0x00, 0x00, 0x00, 0xc0, 0x3d, 0x03, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x6c, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x64, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x5c, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x54, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x4c, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x04, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x44, 0xfa, 
+    0x01, 0x00, 0x04, 0x90, 0x85, 0x11, 0xa5, 0x08, 
+    0x01, 0x80, 0x56, 0x90, 0x81, 0x11, 0x83, 0x08, 
+    0x00, 0x00, 0x20, 0xa0, 0x00, 0x50, 0x27, 0xfb, 
+    0x10, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 
+    0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x61, 0x50, 0x6f, 0x73, 0x69, 0x74, 0x69, 0x6f, 
+    0x6e, 0x00, 0x00, 0x00, 
+};
+
+#define gxm_shader_color_f_size 212
+static const unsigned char gxm_shader_color_f[gxm_shader_color_f_size] = {
+    0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x50, 0x03, 
+    0xd4, 0x00, 0x00, 0x00, 0x9c, 0xd6, 0x9b, 0xf7, 
+    0x78, 0x00, 0x5d, 0x31, 0x01, 0x10, 0x18, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0xac, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 
+    0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 
+    0x84, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x78, 0x00, 0x00, 0x00, 0x74, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x6c, 0x00, 0x00, 0x00, 0xc0, 0x3d, 0x03, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x58, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x48, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x04, 
+    0x01, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 
+    0x0f, 0xa0, 0xd0, 0x0e, 0x00, 0x00, 0x00, 0x00, 
+    0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x07, 0x44, 0xfa, 0x02, 0x80, 0x19, 0xa0, 
+    0x7e, 0x0d, 0x80, 0x40, 
+};
+
+#define gxm_shader_color_v_size 368
+static const unsigned char gxm_shader_color_v[gxm_shader_color_v_size] = {
+    0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x50, 0x03, 
+    0x6d, 0x01, 0x00, 0x00, 0x09, 0xce, 0x4e, 0xc2, 
+    0xe1, 0xcd, 0x24, 0xbc, 0x00, 0x00, 0x19, 0x00, 
+    0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 
+    0x00, 0x01, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 
+    0x08, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x01, 0x00, 0x09, 0x00, 0x00, 0x00, 
+    0x98, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 
+    0x74, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 
+    0xb8, 0x00, 0x00, 0x00, 0xc0, 0x3d, 0x03, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0xac, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0xac, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x9c, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x94, 0x00, 0x00, 0x00, 
+    0x01, 0x00, 0x00, 0x00, 0x8c, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0xf3, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x19, 0x00, 0x09, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x06, 0x43, 0x00, 0x61, 
+    0x86, 0x81, 0xa2, 0x00, 0x07, 0x53, 0x40, 0x61, 
+    0x86, 0x81, 0xa2, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x40, 0x01, 0x04, 0xf8, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x44, 0xfa, 
+    0x80, 0x00, 0x08, 0x83, 0x21, 0x1d, 0x80, 0x38, 
+    0x00, 0x00, 0xf0, 0x83, 0x20, 0x0d, 0x80, 0x38, 
+    0x0a, 0x84, 0xb9, 0xff, 0xbc, 0x0d, 0xc0, 0x40, 
+    0x02, 0x11, 0x45, 0xcf, 0x80, 0x8f, 0xb1, 0x18, 
+    0x00, 0x11, 0x01, 0xc0, 0x81, 0x81, 0xb1, 0x18, 
+    0x01, 0xd1, 0x42, 0xc0, 0x81, 0x81, 0xb1, 0x18, 
+    0x40, 0x00, 0x10, 0x41, 0x09, 0x05, 0x82, 0x38, 
+    0x00, 0x00, 0x20, 0xa0, 0x00, 0x50, 0x27, 0xfb, 
+    0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 
+    0x30, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 
+    0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x2a, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 
+    0x01, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 
+    0x21, 0x00, 0x00, 0x00, 0x01, 0xe4, 0x00, 0x00, 
+    0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x61, 0x50, 0x6f, 0x73, 0x69, 0x74, 0x69, 0x6f, 
+    0x6e, 0x00, 0x61, 0x43, 0x6f, 0x6c, 0x6f, 0x72, 
+    0x00, 0x77, 0x76, 0x70, 0x00, 0x00, 0x00, 0x00, 
+};
+
+#define gxm_shader_texture_f_size 288
+static const unsigned char gxm_shader_texture_f[gxm_shader_texture_f_size] = {
+    0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x50, 0x03, 
+    0x20, 0x01, 0x00, 0x00, 0xeb, 0x4f, 0xb5, 0xba, 
+    0x60, 0xb2, 0xd0, 0x8d, 0x05, 0x18, 0x18, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 
+    0xc4, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 
+    0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x01, 0x00, 0x05, 0x00, 0x00, 0x00, 
+    0x84, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x78, 0x00, 0x00, 0x00, 0x74, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x84, 0x00, 0x00, 0x00, 0xc0, 0x3d, 0x03, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x68, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x58, 0x00, 0x00, 0x00, 
+    0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x04, 
+    0x01, 0x00, 0x01, 0x00, 0x04, 0x00, 0x00, 0x00, 
+    0x00, 0xa9, 0xd0, 0x0e, 0x00, 0x00, 0x00, 0x00, 
+    0xf0, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x07, 0x44, 0xfa, 0x00, 0x00, 0x00, 0x00, 
+    0x40, 0x09, 0x00, 0xf8, 0x02, 0x80, 0x99, 0xaf, 
+    0xbc, 0x0d, 0xc0, 0x40, 0x06, 0x82, 0xb9, 0xaf, 
+    0xbc, 0x0d, 0x80, 0x40, 0x7c, 0x0f, 0x04, 0x00, 
+    0x86, 0x47, 0xa4, 0x10, 0x30, 0x00, 0x00, 0x00, 
+    0x02, 0x04, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x74, 0x65, 0x78, 0x00, 
+};
+
+#define gxm_shader_texture_v_size 400
+static const unsigned char gxm_shader_texture_v[gxm_shader_texture_v_size] = {
+    0x47, 0x58, 0x50, 0x00, 0x01, 0x05, 0x50, 0x03, 
+    0x8f, 0x01, 0x00, 0x00, 0x60, 0x1e, 0x69, 0x97, 
+    0x82, 0x7e, 0x0c, 0xac, 0x00, 0x00, 0x19, 0x00, 
+    0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 
+    0x08, 0x01, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 
+    0x0c, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x01, 0x00, 0x0a, 0x00, 0x00, 0x00, 
+    0x98, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 
+    0x74, 0x00, 0x00, 0x00, 0x88, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 
+    0xc0, 0x00, 0x00, 0x00, 0xc0, 0x3d, 0x03, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0xb4, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0xa4, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x9c, 0x00, 0x00, 0x00, 
+    0x01, 0x00, 0x00, 0x00, 0x94, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x33, 0x0f, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x0a, 
+    0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x06, 0x43, 0x00, 0x61, 
+    0x86, 0x81, 0xa2, 0x00, 0x07, 0x53, 0x40, 0x61, 
+    0x86, 0x81, 0xa2, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x40, 0x01, 0x04, 0xf8, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x44, 0xfa, 
+    0x01, 0x0e, 0x01, 0x01, 0x02, 0x00, 0x10, 0xfa, 
+    0x80, 0x00, 0x08, 0x83, 0x21, 0x25, 0x80, 0x38, 
+    0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x14, 0xfa, 
+    0x00, 0x00, 0xf0, 0x83, 0x20, 0x0d, 0x80, 0x38, 
+    0x0a, 0x84, 0xb9, 0xff, 0xbc, 0x0d, 0xc0, 0x40, 
+    0x02, 0x11, 0x45, 0xcf, 0x80, 0x8f, 0xb1, 0x18, 
+    0x00, 0x11, 0x01, 0xc0, 0x81, 0x81, 0xb1, 0x18, 
+    0x01, 0xd1, 0x42, 0xc0, 0x81, 0x81, 0xb1, 0x18, 
+    0x00, 0x00, 0x20, 0xa0, 0x00, 0x50, 0x27, 0xfb, 
+    0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 
+    0x40, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 
+    0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x3a, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 
+    0x01, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 
+    0x34, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 
+    0x01, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 
+    0x2b, 0x00, 0x00, 0x00, 0x01, 0xe4, 0x00, 0x00, 
+    0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x61, 0x50, 0x6f, 0x73, 0x69, 0x74, 0x69, 0x6f, 
+    0x6e, 0x00, 0x61, 0x54, 0x65, 0x78, 0x63, 0x6f, 
+    0x6f, 0x72, 0x64, 0x00, 0x61, 0x43, 0x6f, 0x6c, 
+    0x6f, 0x72, 0x00, 0x77, 0x76, 0x70, 0x00, 0x00, 
+};
+
+/* *INDENT-ON* */ /* clang-format on */
+
+static const SceGxmProgram *const clearVertexProgramGxp = (const SceGxmProgram *)gxm_shader_clear_v;
+static const SceGxmProgram *const clearFragmentProgramGxp = (const SceGxmProgram *)gxm_shader_clear_f;
+static const SceGxmProgram *const colorVertexProgramGxp = (const SceGxmProgram *)gxm_shader_color_v;
+static const SceGxmProgram *const colorFragmentProgramGxp = (const SceGxmProgram *)gxm_shader_color_f;
+static const SceGxmProgram *const textureVertexProgramGxp = (const SceGxmProgram *)gxm_shader_texture_v;
+static const SceGxmProgram *const textureFragmentProgramGxp = (const SceGxmProgram *)gxm_shader_texture_f;
+
+#endif // SDL_RENDER_VITA_GXM_SHADERS_H

external/sdl/SDL/src/render/vitagxm/SDL_render_vita_gxm_tools.h

@@ -0,0 +1,63 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef SDL_RENDER_VITA_GXM_TOOLS_H
+#define SDL_RENDER_VITA_GXM_TOOLS_H
+
+#include "SDL_internal.h"
+
+#include "../SDL_sysrender.h"
+
+#include <psp2/kernel/processmgr.h>
+#include <psp2/appmgr.h>
+#include <psp2/display.h>
+#include <psp2/gxm.h>
+#include <psp2/types.h>
+#include <psp2/kernel/sysmem.h>
+
+#include "SDL_render_vita_gxm_types.h"
+
+void init_orthographic_matrix(float *m, float left, float right, float bottom, float top, float near, float far);
+
+void *pool_malloc(VITA_GXM_RenderData *data, unsigned int size);
+void *pool_memalign(VITA_GXM_RenderData *data, unsigned int size, unsigned int alignment);
+
+void set_clip_rectangle(VITA_GXM_RenderData *data, int x_min, int y_min, int x_max, int y_max);
+void unset_clip_rectangle(VITA_GXM_RenderData *data);
+
+int gxm_init(SDL_Renderer *renderer);
+void gxm_finish(SDL_Renderer *renderer);
+
+gxm_texture *create_gxm_texture(VITA_GXM_RenderData *data, unsigned int w, unsigned int h, SceGxmTextureFormat format, unsigned int isRenderTarget, unsigned int *return_w, unsigned int *return_h, unsigned int *return_pitch, float *return_wscale);
+void free_gxm_texture(VITA_GXM_RenderData *data, gxm_texture *texture);
+
+void gxm_texture_set_filters(gxm_texture *texture, SceGxmTextureFilter min_filter, SceGxmTextureFilter mag_filter);
+SceGxmTextureFormat gxm_texture_get_format(const gxm_texture *texture);
+
+void *gxm_texture_get_datap(const gxm_texture *texture);
+
+void gxm_minimal_init_for_common_dialog(void);
+void gxm_minimal_term_for_common_dialog(void);
+void gxm_init_for_common_dialog(void);
+void gxm_swap_for_common_dialog(void);
+void gxm_term_for_common_dialog(void);
+
+#endif /* SDL_RENDER_VITA_GXM_TOOLS_H */

external/sdl/SDL/src/render/vitagxm/SDL_render_vita_gxm_types.h

@@ -0,0 +1,211 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#ifndef SDL_RENDER_VITA_GXM_TYPES_H
+#define SDL_RENDER_VITA_GXM_TYPES_H
+
+#include "SDL_internal.h"
+
+#include "../SDL_sysrender.h"
+
+#include <psp2/kernel/processmgr.h>
+#include <psp2/appmgr.h>
+#include <psp2/display.h>
+#include <psp2/gxm.h>
+#include <psp2/types.h>
+#include <psp2/kernel/sysmem.h>
+#include <psp2/kernel/clib.h>
+
+#include <string.h>
+
+#define VITA_GXM_SCREEN_WIDTH  960
+#define VITA_GXM_SCREEN_HEIGHT 544
+#define VITA_GXM_SCREEN_STRIDE 960
+
+#define VITA_GXM_COLOR_FORMAT SCE_GXM_COLOR_FORMAT_A8B8G8R8
+#define VITA_GXM_PIXEL_FORMAT SCE_DISPLAY_PIXELFORMAT_A8B8G8R8
+
+#define VITA_GXM_BUFFERS       3
+#define VITA_GXM_PENDING_SWAPS 2
+#define VITA_GXM_POOL_SIZE     2 * 1024 * 1024
+
+typedef struct
+{
+    void *address;
+    Uint8 wait_vblank;
+} VITA_GXM_DisplayData;
+
+typedef struct clear_vertex
+{
+    float x;
+    float y;
+} clear_vertex;
+
+typedef struct color_vertex
+{
+    float x;
+    float y;
+    SDL_Color color;
+} color_vertex;
+
+typedef struct texture_vertex
+{
+    float x;
+    float y;
+    float u;
+    float v;
+    SDL_Color color;
+} texture_vertex;
+
+typedef struct gxm_texture
+{
+    SceGxmTexture gxm_tex;
+    SceUID data_UID;
+    SceGxmRenderTarget *gxm_rendertarget;
+    SceGxmColorSurface gxm_colorsurface;
+    SceGxmDepthStencilSurface gxm_depthstencil;
+    SceUID depth_UID;
+    SDL_bool cdram;
+} gxm_texture;
+
+typedef struct fragment_programs
+{
+    SceGxmFragmentProgram *color;
+    SceGxmFragmentProgram *texture;
+} fragment_programs;
+
+typedef struct blend_fragment_programs
+{
+    fragment_programs blend_mode_none;
+    fragment_programs blend_mode_blend;
+    fragment_programs blend_mode_add;
+    fragment_programs blend_mode_mod;
+    fragment_programs blend_mode_mul;
+} blend_fragment_programs;
+
+typedef struct
+{
+    SDL_Rect viewport;
+    SDL_bool viewport_dirty;
+    SDL_Texture *texture;
+    SDL_Texture *target;
+    SDL_Color color;
+    SceGxmFragmentProgram *fragment_program;
+    SceGxmVertexProgram *vertex_program;
+    int last_command;
+
+    SDL_bool cliprect_enabled_dirty;
+    SDL_bool cliprect_enabled;
+    SDL_bool cliprect_dirty;
+    SDL_Rect cliprect;
+    SDL_bool texturing;
+    SDL_Color clear_color;
+    int drawablew;
+    int drawableh;
+} gxm_drawstate_cache;
+
+typedef struct
+{
+    SDL_bool initialized;
+    SDL_bool drawing;
+
+    unsigned int psm;
+    unsigned int bpp;
+
+    int currentBlendMode;
+
+    VITA_GXM_DisplayData displayData;
+
+    SceUID vdmRingBufferUid;
+    SceUID vertexRingBufferUid;
+    SceUID fragmentRingBufferUid;
+    SceUID fragmentUsseRingBufferUid;
+    SceGxmContextParams contextParams;
+    SceGxmContext *gxm_context;
+    SceGxmRenderTarget *renderTarget;
+    SceUID displayBufferUid[VITA_GXM_BUFFERS];
+    void *displayBufferData[VITA_GXM_BUFFERS];
+    SceGxmColorSurface displaySurface[VITA_GXM_BUFFERS];
+    SceGxmSyncObject *displayBufferSync[VITA_GXM_BUFFERS];
+
+    SceUID depthBufferUid;
+    SceUID stencilBufferUid;
+    SceGxmDepthStencilSurface depthSurface;
+    void *depthBufferData;
+    void *stencilBufferData;
+
+    unsigned int backBufferIndex;
+    unsigned int frontBufferIndex;
+
+    void *pool_addr[2];
+    SceUID poolUid[2];
+    unsigned int pool_index;
+    unsigned int current_pool;
+
+    float ortho_matrix[4 * 4];
+
+    SceGxmVertexProgram *colorVertexProgram;
+    SceGxmFragmentProgram *colorFragmentProgram;
+    SceGxmVertexProgram *textureVertexProgram;
+    SceGxmFragmentProgram *textureFragmentProgram;
+    SceGxmProgramParameter *clearClearColorParam;
+    SceGxmProgramParameter *colorWvpParam;
+    SceGxmProgramParameter *textureWvpParam;
+
+    SceGxmShaderPatcher *shaderPatcher;
+    SceGxmVertexProgram *clearVertexProgram;
+    SceGxmFragmentProgram *clearFragmentProgram;
+
+    SceGxmShaderPatcherId clearVertexProgramId;
+    SceGxmShaderPatcherId clearFragmentProgramId;
+    SceGxmShaderPatcherId colorVertexProgramId;
+    SceGxmShaderPatcherId colorFragmentProgramId;
+    SceGxmShaderPatcherId textureVertexProgramId;
+    SceGxmShaderPatcherId textureFragmentProgramId;
+
+    SceUID patcherBufferUid;
+    SceUID patcherVertexUsseUid;
+    SceUID patcherFragmentUsseUid;
+
+    SceUID clearVerticesUid;
+    SceUID linearIndicesUid;
+    clear_vertex *clearVertices;
+    uint16_t *linearIndices;
+
+    blend_fragment_programs blendFragmentPrograms;
+
+    gxm_drawstate_cache drawstate;
+    SceClibMspace texturePool;
+    SceUID texturePoolUID;
+} VITA_GXM_RenderData;
+
+typedef struct
+{
+    gxm_texture *tex;
+    unsigned int pitch;
+    unsigned int w;
+    unsigned int h;
+    float wscale;
+    SDL_bool yuv;
+    SDL_bool nv12;
+} VITA_GXM_TextureData;
+
+#endif /* SDL_RENDER_VITA_GXM_TYPES_H */

external/sdl/SDL/src/render/vitagxm/shader_src/clear_f.cg

@@ -0,0 +1,4 @@
+float4 main( uniform float4 uClearColor) : COLOR
+{
+    return uClearColor;
+}

external/sdl/SDL/src/render/vitagxm/shader_src/clear_v.cg

@@ -0,0 +1,4 @@
+float4 main(float2 aPosition) : POSITION
+{
+    return float4(aPosition, 1.f, 1.f);
+}

external/sdl/SDL/src/render/vitagxm/shader_src/color_f.cg

@@ -0,0 +1,4 @@
+float4 main(float4 vColor : COLOR)
+{
+    return vColor;
+}

external/sdl/SDL/src/render/vitagxm/shader_src/color_v.cg

@@ -0,0 +1,13 @@
+void main(
+    float2 aPosition,
+    float4 aColor,
+    uniform float4x4 wvp,
+    out float4 vPosition : POSITION,
+    out float4 vColor : COLOR,
+    out float pSize : PSIZE
+)
+{
+    vPosition = mul(float4(aPosition, 1.f, 0.5f), wvp);
+    vColor = aColor;
+    pSize = 1.f;
+}

external/sdl/SDL/src/render/vitagxm/shader_src/texture_f.cg

@@ -0,0 +1,4 @@
+float4 main(float2 vTexcoord : TEXCOORD0, float4 vColor : COLOR, uniform sampler2D tex)
+{
+    return tex2D(tex, vTexcoord) * vColor;
+}

external/sdl/SDL/src/render/vitagxm/shader_src/texture_v.cg

@@ -0,0 +1,14 @@
+void main(
+    float2 aPosition,
+    float2 aTexcoord,
+    float4 aColor,
+    uniform float4x4 wvp,
+    out float4 vPosition : POSITION,
+    out float4 vColor : COLOR,
+    out float2 vTexcoord : TEXCOORD0
+)
+{
+    vPosition = mul(float4(aPosition, 1.f, 0.5f), wvp);
+    vTexcoord = aTexcoord;
+    vColor = aColor;
+}