From 4e2dd51ad1e36edcdf7975a6eb1242460f950cf6 Mon Sep 17 00:00:00 2001
From: Green Sky <green@g-s.xyz>
Date: Sun, 11 Apr 2021 21:28:40 +0200
Subject: [PATCH] add opengl texture from sdl_surface

---
 framework/opengl_primitives/CMakeLists.txt    |  2 ++
 .../src/mm/opengl/texture.hpp                 |  2 ++
 .../src/mm/opengl/texture_loader.cpp          | 27 ++++++++++++++++++-
 .../src/mm/opengl/texture_loader.hpp          |  7 +++++
 4 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/framework/opengl_primitives/CMakeLists.txt b/framework/opengl_primitives/CMakeLists.txt
index f2aa1eb..d1c3bf8 100644
--- a/framework/opengl_primitives/CMakeLists.txt
+++ b/framework/opengl_primitives/CMakeLists.txt
@@ -11,6 +11,8 @@ target_include_directories(opengl_primitives PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}
 target_link_libraries(opengl_primitives
 	glm
 	stb_image
+	#sdl
+	sdl_service
 
 	logger
 	resource_manager
diff --git a/framework/opengl_primitives/src/mm/opengl/texture.hpp b/framework/opengl_primitives/src/mm/opengl/texture.hpp
index 21d19fd..e7e06d8 100644
--- a/framework/opengl_primitives/src/mm/opengl/texture.hpp
+++ b/framework/opengl_primitives/src/mm/opengl/texture.hpp
@@ -6,6 +6,7 @@ namespace MM::OpenGL {
 
 	struct TextureLoaderFile;
 	struct TextureLoaderConstBuffer;
+	struct TextureLoaderSDLSurface;
 
 	class Texture {
 		private:
@@ -14,6 +15,7 @@ namespace MM::OpenGL {
 		private:
 			friend struct TextureLoaderFile;
 			friend struct TextureLoaderConstBuffer;
+			friend struct TextureLoaderSDLSurface;
 
 			Texture(
 				uint32_t handle,
diff --git a/framework/opengl_primitives/src/mm/opengl/texture_loader.cpp b/framework/opengl_primitives/src/mm/opengl/texture_loader.cpp
index 971bce7..2cb8718 100644
--- a/framework/opengl_primitives/src/mm/opengl/texture_loader.cpp
+++ b/framework/opengl_primitives/src/mm/opengl/texture_loader.cpp
@@ -8,7 +8,6 @@
 	#include <glad/glad.h>
 #endif
 
-
 #include <mm/services/filesystem.hpp>
 #include <mm/engine.hpp>
 
@@ -129,5 +128,31 @@ std::shared_ptr<Texture> TextureLoaderConstBuffer::load(const uint8_t* data, siz
 	return std::shared_ptr<Texture>(new Texture(handle, width, height, GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE));
 }
 
+std::shared_ptr<Texture> TextureLoaderSDLSurface::load(SDL_Surface* surface) const {
+	uint32_t handle;
+
+	glGenTextures(1, &handle);
+	glBindTexture(GL_TEXTURE_2D, handle);
+
+	//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+	//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+	//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+	//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+	SDL_LockSurface(surface);
+
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, surface->w, surface->h, 0, GL_RGBA, GL_UNSIGNED_BYTE, surface->pixels);
+	glBindTexture(GL_TEXTURE_2D, 0);
+
+	SDL_UnlockSurface(surface);
+
+	return std::shared_ptr<Texture>(new Texture(handle, surface->w, surface->h, GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE));
+}
+
 } // MM::OpenGL
 
diff --git a/framework/opengl_primitives/src/mm/opengl/texture_loader.hpp b/framework/opengl_primitives/src/mm/opengl/texture_loader.hpp
index 91858b6..6786ca4 100644
--- a/framework/opengl_primitives/src/mm/opengl/texture_loader.hpp
+++ b/framework/opengl_primitives/src/mm/opengl/texture_loader.hpp
@@ -1,6 +1,9 @@
 #pragma once
 
 #include "./texture.hpp"
+
+#include <SDL2/SDL.h>
+
 #include <utility>
 
 // fwd
@@ -18,6 +21,10 @@ namespace MM::OpenGL {
 		std::shared_ptr<Texture> load(const uint8_t* data, size_t size) const;
 	};
 
+	struct TextureLoaderSDLSurface final {
+		std::shared_ptr<Texture> load(SDL_Surface* surface) const;
+	};
+
 	struct TextureLoaderEmpty final {
 		template<typename... Args>
 		std::shared_ptr<Texture> load(Args&& ... args) const {