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[idd/client/obs] hdr: wire up the SdrWhiteLevel from the capture

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Geoffrey McRae
2026-07-17 17:49:49 +10:00
parent 3b69e6bdf4
commit 2006fb640f
17 changed files with 111 additions and 66 deletions
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21
idd/LGIdd/CSwapChainProcessor.cpp
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@@ -165,6 +165,7 @@ bool CSwapChainProcessor::SwapChainThreadCore()
// Only the buffer2 acquisition path (IddCx 1.10+) reports it; on the legacy
// path HDR is not available, so default to SDR.
DXGI_COLOR_SPACE_TYPE colorSpace = DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709;
UINT sdrWhiteLevel = KVMFR_SDR_WHITE_LEVEL_DEFAULT;
#ifdef HAS_IDDCX_110
if (m_devContext->CanProcessFP16())
@@ -179,10 +180,11 @@ bool CSwapChainProcessor::SwapChainThreadCore()
hr = IddCxSwapChainReleaseAndAcquireBuffer2(m_hSwapChain, &acquireIn, &buffer);
if (SUCCEEDED(hr))
{
frameNumber = buffer.MetaData.PresentationFrameNumber;
frameNumber = buffer.MetaData.PresentationFrameNumber;
dirtyRectCount = buffer.MetaData.DirtyRectCount;
surface = buffer.MetaData.pSurface;
colorSpace = buffer.MetaData.SurfaceColorSpace;
surface = buffer.MetaData.pSurface;
colorSpace = buffer.MetaData.SurfaceColorSpace;
sdrWhiteLevel = buffer.MetaData.SdrWhiteLevel;
}
}
else
@@ -222,7 +224,7 @@ bool CSwapChainProcessor::SwapChainThreadCore()
if (frameNumber != lastFrameNumber)
{
lastFrameNumber = frameNumber;
SwapChainNewFrame(surface, dirtyRectCount, colorSpace);
SwapChainNewFrame(surface, dirtyRectCount, colorSpace, sdrWhiteLevel);
// report that all GPU processing for this frame has been queued
hr = IddCxSwapChainFinishedProcessingFrame(m_hSwapChain);
@@ -334,7 +336,7 @@ static FrameType GetFrameType(DXGI_FORMAT format)
}
bool CSwapChainProcessor::SwapChainNewFrame(ComPtr<IDXGIResource> acquiredBuffer, unsigned dirtyRectCount,
DXGI_COLOR_SPACE_TYPE colorSpace)
DXGI_COLOR_SPACE_TYPE colorSpace, UINT sdrWhiteLevel)
{
ComPtr<ID3D11Texture2D> texture;
HRESULT hr = acquiredBuffer.As(&texture);
@@ -382,10 +384,11 @@ bool CSwapChainProcessor::SwapChainNewFrame(ComPtr<IDXGIResource> acquiredBuffer
D3D12_RESOURCE_DESC srcDesc = srcRes->GetRes()->GetDesc();
D12FrameFormat srcFormat = {};
srcFormat.desc = srcDesc;
srcFormat.width = (unsigned)srcDesc.Width;
srcFormat.height = srcDesc.Height;
srcFormat.format = GetFrameType(srcDesc.Format);
srcFormat.desc = srcDesc;
srcFormat.width = (unsigned)srcDesc.Width;
srcFormat.height = srcDesc.Height;
srcFormat.format = GetFrameType(srcDesc.Format);
srcFormat.sdrWhiteLevel = sdrWhiteLevel;
switch (colorSpace)
{