forked from Green-Sky/tomato
add sdl_image image_loader (untested)
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43f8c22570
1
external/sdl_image/CMakeLists.txt
vendored
1
external/sdl_image/CMakeLists.txt
vendored
@ -9,6 +9,7 @@ if (NOT TARGET SDL3_image::SDL3_image)
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set(SDL3IMAGE_BACKEND_STB OFF CACHE BOOL "" FORCE) # important for security
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set(SDL3IMAGE_BACKEND_IMAGEIO OFF CACHE BOOL "" FORCE) # some funky apple cmake bug
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set(SDL3IMAGE_JXL ON CACHE BOOL "" FORCE)
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set(SDL3IMAGE_QOI OFF CACHE BOOL "" FORCE) # we have our own
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FetchContent_Declare(SDL3_image
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GIT_REPOSITORY https://github.com/libsdl-org/SDL_image
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@ -29,6 +29,8 @@ add_executable(tomato
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./image_loader_webp.cpp
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./image_loader_qoi.hpp
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./image_loader_qoi.cpp
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./image_loader_sdl_image.hpp
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./image_loader_sdl_image.cpp
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./texture_uploader.hpp
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./sdlrenderer_texture_uploader.hpp
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@ -98,5 +100,6 @@ target_link_libraries(tomato PUBLIC
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webpdemux
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libwebpmux # the f why (needed for anim encode)
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qoi
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SDL3_image::SDL3_image
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)
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118
src/image_loader_sdl_image.cpp
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118
src/image_loader_sdl_image.cpp
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@ -0,0 +1,118 @@
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#include "./image_loader_sdl_image.hpp"
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#include <SDL3_image/SDL_image.h>
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#include <optional>
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#include <iostream>
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static std::optional<const char*> getExt(SDL_IOStream* ios) {
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if (IMG_isAVIF(ios)) {
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return "avif";
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} else if (IMG_isCUR(ios)) {
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return "cur";
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} else if (IMG_isICO(ios)) {
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return "ico";
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} else if (IMG_isBMP(ios)) {
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return "bmp";
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} else if (IMG_isGIF(ios)) {
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return "gif";
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} else if (IMG_isJPG(ios)) {
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return "jpg";
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} else if (IMG_isJXL(ios)) {
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return "jxl";
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} else if (IMG_isLBM(ios)) {
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return "lbm";
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} else if (IMG_isPCX(ios)) {
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return "pcx";
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} else if (IMG_isPNG(ios)) {
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return "png";
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} else if (IMG_isPNM(ios)) {
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return "pnm";
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} else if (IMG_isSVG(ios)) {
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return "svg";
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} else if (IMG_isTIF(ios)) {
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return "tiff";
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} else if (IMG_isXCF(ios)) {
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return "xcf";
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} else if (IMG_isXPM(ios)) {
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return "xpm";
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} else if (IMG_isXV(ios)) {
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return "xv";
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} else if (IMG_isWEBP(ios)) {
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return "webp";
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} else if (IMG_isQOI(ios)) {
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return "qoi";
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} else {
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return std::nullopt;
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}
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}
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ImageLoaderSDLImage::ImageInfo ImageLoaderSDLImage::loadInfoFromMemory(const uint8_t* data, uint64_t data_size) {
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ImageInfo res;
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auto* ios = SDL_IOFromConstMem(data, data_size);
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// we ignore tga
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auto ext_opt = getExt(ios);
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if (!ext_opt.has_value()) {
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return res;
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}
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SDL_Surface* surf = IMG_Load_IO(ios, SDL_TRUE);
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if (surf == nullptr) {
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return res;
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}
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res.width = surf->w;
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res.height = surf->h;
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res.file_ext = ext_opt.value();
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SDL_DestroySurface(surf);
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return res;
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}
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ImageLoaderSDLImage::ImageResult ImageLoaderSDLImage::loadFromMemoryRGBA(const uint8_t* data, uint64_t data_size) {
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ImageResult res;
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auto* ios = SDL_IOFromConstMem(data, data_size);
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// we ignore tga
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auto ext_opt = getExt(ios);
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if (!ext_opt.has_value()) {
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return res;
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}
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IMG_Animation* anim = IMG_LoadAnimation_IO(ios, SDL_TRUE);
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if (anim == nullptr) {
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return res;
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}
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for (int i = 0; i < anim->count; i++) {
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SDL_Surface* conv_surf = SDL_ConvertSurfaceFormat(anim->frames[i], SDL_PIXELFORMAT_RGBA32);
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if (conv_surf == nullptr) {
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return res;
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}
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SDL_LockSurface(conv_surf);
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auto& new_frame = res.frames.emplace_back();
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new_frame.ms = anim->delays[i];
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new_frame.data.insert(new_frame.data.cbegin(), (const uint8_t*)conv_surf->pixels, ((const uint8_t*)conv_surf->pixels) + (anim->w*anim->h*4));
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SDL_UnlockSurface(conv_surf);
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SDL_DestroySurface(conv_surf);
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}
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res.width = anim->w;
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res.height = anim->h;
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res.file_ext = ext_opt.value();
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IMG_FreeAnimation(anim);
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std::cout << "IL_SDLI: loaded img " << res.width << "x" << res.height << "\n";
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return res;
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}
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9
src/image_loader_sdl_image.hpp
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9
src/image_loader_sdl_image.hpp
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@ -0,0 +1,9 @@
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#pragma once
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#include "./image_loader.hpp"
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struct ImageLoaderSDLImage : public ImageLoaderI {
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ImageInfo loadInfoFromMemory(const uint8_t* data, uint64_t data_size) override;
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ImageResult loadFromMemoryRGBA(const uint8_t* data, uint64_t data_size) override;
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};
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