aiden/video-shader-toys
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Aiden
2026-05-06 14:35:41 +10:00
parent b2f4d6677c
commit 70be7312b8
9 changed files with 149 additions and 14 deletions
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7
apps/LoopThroughWithOpenGLCompositing/gl/OpenGLDeckLinkBridge.cpp
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@@ -98,6 +98,8 @@ void OpenGLDeckLinkBridge::VideoFrameArrived(IDeckLinkVideoInputFrame* inputFram
else
{
// Use a straightforward texture buffer
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, mRenderer.UnpinnedTextureBuffer());
glBufferData(GL_PIXEL_UNPACK_BUFFER, textureSize, videoPixels, GL_DYNAMIC_DRAW);
glBindTexture(GL_TEXTURE_2D, mRenderer.CaptureTexture());
@@ -174,13 +176,14 @@ void OpenGLDeckLinkBridge::PlayoutFrameCompleted(IDeckLinkVideoFrame* completedF
if (!mDeckLink.TransferPlayoutFrame(pFrame, mRenderer.OutputTexture()))
OutputDebugStringA("Playback: transferFrame() failed\n");
mPaint();
// Wait for transfer to system memory to complete
mDeckLink.WaitForPlayoutTransferComplete(pFrame);
mPaint();
}
else
{
glPixelStorei(GL_PACK_ALIGNMENT, 4);
glPixelStorei(GL_PACK_ROW_LENGTH, 0);
glBindFramebuffer(GL_READ_FRAMEBUFFER, mRenderer.OutputFramebuffer());
glReadPixels(0, 0, mDeckLink.OutputFrameWidth(), mDeckLink.OutputFrameHeight(), GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, pFrame);
mPaint();