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Geometrically correct viewport rectangle clamp for D3D

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This commit is contained in:
Jack Andersen
2016-02-26 16:02:54 -10:00
parent cf9e9d80eb
commit 94343c645a
2 changed files with 10 additions and 21 deletions
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7
lib/graphicsdev/D3D11.cpp
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@@ -902,9 +902,10 @@ struct D3D11CommandQueue : IGraphicsCommandQueue
}
else
{
int y = tlOrigin ? rect.location[1] : (tex->m_height - rect.size[1] - rect.location[1]);
D3D11_BOX box = {UINT(std::max(0, rect.location[0])), UINT(std::max(0, y)), 0,
UINT(std::max(0, rect.location[0] + rect.size[0])), UINT(std::max(0, y + rect.size[1])), 1};
SWindowRect intersectRect = rect.intersect(SWindowRect(0, 0, tex->m_width, tex->m_height));
int y = tlOrigin ? intersectRect.location[1] : (tex->m_height - intersectRect.size[1] - intersectRect.location[1]);
D3D11_BOX box = {UINT(intersectRect.location[0]), UINT(y), 0,
UINT(intersectRect.location[0] + intersectRect.size[0]), UINT(y + intersectRect.size[1]), 1};
m_deferredCtx->CopySubresourceRegion1(tex->m_colorBindTex.Get(), 0, box.left, box.top, 0,
tex->m_colorTex.Get(), 0, &box, D3D11_COPY_DISCARD);
}