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Fix modesetting for non-EGL HEVC streams

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This commit is contained in:
Cameron Gutman 2022-05-28 21:42:27 -05:00
parent b9c73df488
commit 9daf7b5a36
1 changed files with 17 additions and 0 deletions
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17
app/streaming/video/ffmpeg-renderers/drm.cpp
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@ -206,6 +206,23 @@ bool DrmRenderer::initialize(PDECODER_PARAMETERS params)
return DIRECT_RENDERING_INIT_FAILED; return DIRECT_RENDERING_INIT_FAILED;
} }
// Create a dummy renderer to force SDL to complete the modesetting
// operation that the KMSDRM backend keeps pending until the next
// time we swap buffers. We have to do this before we enumerate
// CRTC modes below.
SDL_Renderer* renderer = SDL_CreateRenderer(params->window, -1, SDL_RENDERER_SOFTWARE);
if (renderer != nullptr) {
SDL_SetRenderDrawColor(renderer, 0, 0, 0, SDL_ALPHA_OPAQUE);
SDL_RenderClear(renderer);
SDL_RenderPresent(renderer);
SDL_DestroyRenderer(renderer);
}
else {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"SDL_CreateRenderer() failed: %s",
SDL_GetError());
}
drmModeRes* resources = drmModeGetResources(m_DrmFd); drmModeRes* resources = drmModeGetResources(m_DrmFd);
if (resources == nullptr) { if (resources == nullptr) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,