tomato/src/sdlrenderer_texture_uploader.cpp

38 lines
1011 B
C++

#include "./sdlrenderer_texture_uploader.hpp"
#include <cassert>
SDLRendererTextureUploader::SDLRendererTextureUploader(SDL_Renderer* renderer_) :
renderer(renderer_)
{
}
uint64_t SDLRendererTextureUploader::uploadRGBA(const uint8_t* data, uint32_t width, uint32_t height, Filter filter) {
// TODO: test if pitch is 4 or 4*width
SDL_Surface* surf = SDL_CreateSurfaceFrom(
(void*)data,
width, height,
4*width,
SDL_PIXELFORMAT_RGBA32 // auto big/little
);
assert(surf); // TODO: add error reporting
SDL_Texture* tex = SDL_CreateTextureFromSurface(renderer, surf);
assert(tex); // TODO: add error reporting
if (filter == NEAREST) {
SDL_SetTextureScaleMode(tex, SDL_SCALEMODE_NEAREST);
} else if (filter == LINEAR) {
SDL_SetTextureScaleMode(tex, SDL_SCALEMODE_LINEAR);
}
SDL_DestroySurface(surf);
return reinterpret_cast<uint64_t>(tex);
}
void SDLRendererTextureUploader::destroy(uint64_t tex_id) {
SDL_DestroyTexture(static_cast<SDL_Texture*>(reinterpret_cast<void*>(tex_id)));
}