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DirectXTex/DirectXTK: Extra validation and typeless handling for capturing MSAA textures

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This commit is contained in:
walbourn_cp 2012-10-18 15:23:51 -07:00
parent 1425425b35
commit 42e9ba96a3
2 changed files with 62 additions and 2 deletions
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22
DirectXTex/DirectXTexD3D11.cpp
View File

@ -683,12 +683,32 @@ HRESULT CaptureTexture( ID3D11Device* pDevice, ID3D11DeviceContext* pContext, ID
assert( pTemp.Get() );
DXGI_FORMAT fmt = desc.Format;
if ( IsTypeless(fmt) )
{
// Assume a UNORM if it exists otherwise use FLOAT
fmt = MakeTypelessUNORM( fmt );
fmt = MakeTypelessFLOAT( fmt );
}
UINT support = 0;
hr = pDevice->CheckFormatSupport( fmt, &support );
if ( FAILED(hr) )
break;
if ( !(support & D3D11_FORMAT_SUPPORT_MULTISAMPLE_RESOLVE) )
{
hr = E_FAIL;
break;
}
for( UINT item = 0; item < desc.ArraySize; ++item )
{
for( UINT level = 0; level < desc.MipLevels; ++level )
{
UINT index = D3D11CalcSubresource( level, item, desc.MipLevels );
pContext->ResolveSubresource( pTemp.Get(), index, pSource, index, desc.Format );
pContext->ResolveSubresource( pTemp.Get(), index, pSource, index, fmt );
}
}

42
ScreenGrab/ScreenGrab.cpp
View File

@ -490,6 +490,36 @@ static void GetSurfaceInfo( _In_ size_t width,
}
//--------------------------------------------------------------------------------------
static DXGI_FORMAT EnsureNotTypeless( DXGI_FORMAT fmt )
{
// Assumes UNORM or FLOAT; doesn't use UINT or SINT
switch( fmt )
{
case DXGI_FORMAT_R32G32B32A32_TYPELESS: return DXGI_FORMAT_R32G32B32A32_FLOAT;
case DXGI_FORMAT_R32G32B32_TYPELESS: return DXGI_FORMAT_R32G32B32_FLOAT;
case DXGI_FORMAT_R16G16B16A16_TYPELESS: return DXGI_FORMAT_R16G16B16A16_UNORM;
case DXGI_FORMAT_R32G32_TYPELESS: return DXGI_FORMAT_R32G32_FLOAT;
case DXGI_FORMAT_R10G10B10A2_TYPELESS: return DXGI_FORMAT_R10G10B10A2_UNORM;
case DXGI_FORMAT_R8G8B8A8_TYPELESS: return DXGI_FORMAT_R8G8B8A8_UNORM;
case DXGI_FORMAT_R16G16_TYPELESS: return DXGI_FORMAT_R16G16_UNORM;
case DXGI_FORMAT_R32_TYPELESS: return DXGI_FORMAT_R32_FLOAT;
case DXGI_FORMAT_R8G8_TYPELESS: return DXGI_FORMAT_R8G8_UNORM;
case DXGI_FORMAT_R16_TYPELESS: return DXGI_FORMAT_R16_UNORM;
case DXGI_FORMAT_R8_TYPELESS: return DXGI_FORMAT_R8_UNORM;
case DXGI_FORMAT_BC1_TYPELESS: return DXGI_FORMAT_BC1_UNORM;
case DXGI_FORMAT_BC2_TYPELESS: return DXGI_FORMAT_BC2_UNORM;
case DXGI_FORMAT_BC3_TYPELESS: return DXGI_FORMAT_BC3_UNORM;
case DXGI_FORMAT_BC4_TYPELESS: return DXGI_FORMAT_BC4_UNORM;
case DXGI_FORMAT_BC5_TYPELESS: return DXGI_FORMAT_BC5_UNORM;
case DXGI_FORMAT_B8G8R8A8_TYPELESS: return DXGI_FORMAT_B8G8R8A8_UNORM;
case DXGI_FORMAT_B8G8R8X8_TYPELESS: return DXGI_FORMAT_B8G8R8X8_UNORM;
case DXGI_FORMAT_BC7_TYPELESS: return DXGI_FORMAT_BC7_UNORM;
default: return fmt;
}
}
//--------------------------------------------------------------------------------------
static HRESULT CaptureTexture( _In_ ID3D11DeviceContext* pContext,
_In_ ID3D11Resource* pSource,
@ -530,12 +560,22 @@ static HRESULT CaptureTexture( _In_ ID3D11DeviceContext* pContext,
assert( pTemp.Get() );
DXGI_FORMAT fmt = EnsureNotTypeless( desc.Format );
UINT support = 0;
hr = d3dDevice->CheckFormatSupport( fmt, &support );
if ( FAILED(hr) )
return hr;
if ( !(support & D3D11_FORMAT_SUPPORT_MULTISAMPLE_RESOLVE) )
return E_FAIL;
for( UINT item = 0; item < desc.ArraySize; ++item )
{
for( UINT level = 0; level < desc.MipLevels; ++level )
{
UINT index = D3D11CalcSubresource( level, item, desc.MipLevels );
pContext->ResolveSubresource( pTemp.Get(), index, pSource, index, desc.Format );
pContext->ResolveSubresource( pTemp.Get(), index, pSource, index, fmt );
}
}