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Use SV_POSITION instead to compute pixel coordinates instead of fiddling with the polygon. This should fix the image being offset by 1 pixel.

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elasota
2020-11-12 19:15:50 -05:00
parent 2c073937c3
commit 801408077a
4 changed files with 95 additions and 91 deletions
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10
GpDisplayDriver_D3D11/GpDisplayDriverD3D11.cpp
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@@ -814,10 +814,10 @@ void GpDisplayDriverD3D11::ScaleVirtualScreen()
float fHeight = static_cast<float>(m_windowHeightVirtual) * m_pixelScaleY;
DrawQuadVertexConstants vConstantsData;
vConstantsData.m_ndcOriginX = twoDivWidth - 1.0f;
vConstantsData.m_ndcOriginY = negativeTwoDivHeight + 1.0f;
vConstantsData.m_ndcWidth = fWidth * twoDivWidth;
vConstantsData.m_ndcHeight = fHeight * negativeTwoDivHeight;
vConstantsData.m_ndcOriginX = - 1.0f;
vConstantsData.m_ndcOriginY = 1.0f;
vConstantsData.m_ndcWidth = 2.0;
vConstantsData.m_ndcHeight = -2.0;
vConstantsData.m_surfaceDimensionX = static_cast<float>(m_windowWidthVirtual);
vConstantsData.m_surfaceDimensionY = static_cast<float>(m_windowHeightVirtual);
@@ -832,6 +832,8 @@ void GpDisplayDriverD3D11::ScaleVirtualScreen()
ScaleQuadPixelConstants pConstantsData;
pConstantsData.m_dx = static_cast<float>(static_cast<double>(m_windowWidthVirtual) / static_cast<double>(m_windowWidthPhysical));
pConstantsData.m_dy = static_cast<float>(static_cast<double>(m_windowHeightVirtual) / static_cast<double>(m_windowHeightPhysical));
pConstantsData.m_invScaleX = static_cast<float>(1.0f / m_pixelScaleX);
pConstantsData.m_invScaleY = static_cast<float>(1.0f / m_pixelScaleY);
D3D11_MAPPED_SUBRESOURCE mappedPConstants;
if (m_deviceContext->Map(m_scaleQuadPixelConstantBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedPConstants) == S_OK)