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Use SDL_UpdateNVTexture on SDL 2.0.15+

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This commit is contained in:
Cameron Gutman 2021-01-08 18:05:27 -06:00
parent a0cc93b813
commit 137454beff
1 changed files with 30 additions and 17 deletions
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47
app/streaming/video/ffmpeg-renderers/sdlvid.cpp
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@ -291,25 +291,38 @@ void SdlRenderer::renderFrame(AVFrame* frame)
frame->linesize[2]); frame->linesize[2]);
} }
else { else {
char* pixels; #if SDL_VERSION_ATLEAST(2, 0, 15)
int pitch; // SDL_UpdateNVTexture is not supported on all renderer backends,
// (notably not DX9), so we must have a fallback in case it's not
// supported and for earlier versions of SDL.
if (SDL_UpdateNVTexture(m_Texture,
nullptr,
frame->data[0],
frame->linesize[0],
frame->data[1],
frame->linesize[1]) != 0)
#endif
{
char* pixels;
int pitch;
err = SDL_LockTexture(m_Texture, nullptr, (void**)&pixels, &pitch); err = SDL_LockTexture(m_Texture, nullptr, (void**)&pixels, &pitch);
if (err < 0) { if (err < 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"SDL_LockTexture() failed: %s", "SDL_LockTexture() failed: %s",
SDL_GetError()); SDL_GetError());
goto Exit; goto Exit;
}
memcpy(pixels,
frame->data[0],
frame->linesize[0] * frame->height);
memcpy(pixels + (frame->linesize[0] * frame->height),
frame->data[1],
frame->linesize[1] * frame->height / 2);
SDL_UnlockTexture(m_Texture);
} }
memcpy(pixels,
frame->data[0],
frame->linesize[0] * frame->height);
memcpy(pixels + (frame->linesize[0] * frame->height),
frame->data[1],
frame->linesize[1] * frame->height / 2);
SDL_UnlockTexture(m_Texture);
} }
SDL_RenderClear(m_Renderer); SDL_RenderClear(m_Renderer);