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[d3d11] Validate and correct scissor rects

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Fixes Vulkan validation errors in Frostpunk and more closely
emulates Windows behaviour.
This commit is contained in:
Philip Rebohle 2018-05-25 00:08:28 +02:00
parent a9c0f9e7c2
commit 49bda46a37
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GPG Key ID: C8CC613427A31C99
1 changed files with 19 additions and 11 deletions
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30
src/d3d11/d3d11_context.cpp
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@ -2290,8 +2290,11 @@ namespace dxvk {
const D3D11_RECT* pRects) {
m_state.rs.numScissors = NumRects;
for (uint32_t i = 0; i < NumRects; i++)
m_state.rs.scissors.at(i) = pRects[i];
for (uint32_t i = 0; i < NumRects; i++) {
if (pRects[i].bottom >= pRects[i].top
&& pRects[i].right >= pRects[i].left)
m_state.rs.scissors.at(i) = pRects[i];
}
if (m_state.rs.state != nullptr) {
D3D11_RASTERIZER_DESC rsDesc;
@ -2554,17 +2557,22 @@ namespace dxvk {
}
for (uint32_t i = 0; i < m_state.rs.numViewports; i++) {
// TODO D3D11 docs aren't clear about what should happen
// when there are undefined scissor rects for a viewport.
// Figure out what it does on Windows.
if (enableScissorTest && (i < m_state.rs.numScissors)) {
const D3D11_RECT& sr = m_state.rs.scissors.at(i);
D3D11_RECT sr = m_state.rs.scissors.at(i);
scissors.at(i) = VkRect2D {
VkOffset2D { sr.left, sr.top },
VkExtent2D {
static_cast<uint32_t>(sr.right - sr.left),
static_cast<uint32_t>(sr.bottom - sr.top) } };
VkOffset2D srPosA;
srPosA.x = std::max<int32_t>(0, sr.left);
srPosA.y = std::max<int32_t>(0, sr.top);
VkOffset2D srPosB;
srPosB.x = std::max<int32_t>(srPosA.x, sr.right);
srPosB.y = std::max<int32_t>(srPosA.y, sr.bottom);
VkExtent2D srSize;
srSize.width = uint32_t(srPosB.x - srPosA.x);
srSize.height = uint32_t(srPosB.y - srPosA.y);
scissors.at(i) = VkRect2D { srPosA, srSize };
} else {
scissors.at(i) = VkRect2D {
VkOffset2D { 0, 0 },