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[dxvk] Clamp scissor against render area

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Philip Rebohle 2025-03-11 01:25:36 +01:00
parent 8a6a0590fd
commit f8eeb052e0
1 changed files with 18 additions and 1 deletions
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19
src/dxvk/dxvk_context.cpp
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@ -6700,8 +6700,25 @@ namespace dxvk {
if (unlikely(m_flags.test(DxvkContextFlag::GpDirtyViewport))) {
m_flags.clr(DxvkContextFlag::GpDirtyViewport);
// Clamp scissor against rendering area. Not doing so is technically
// out of spec, even if this doesn't get validated. This also solves
// problems with potentially invalid scissor rects.
std::array<VkRect2D, DxvkLimits::MaxNumViewports> clampedScissors;
DxvkFramebufferSize renderSize = m_state.om.framebufferInfo.size();
for (uint32_t i = 0; i < m_state.vp.viewportCount; i++) {
const auto& scissor = m_state.vp.scissorRects[i];
clampedScissors[i].offset = VkOffset2D {
std::clamp<int32_t>(scissor.offset.x, 0, renderSize.width),
std::clamp<int32_t>(scissor.offset.y, 0, renderSize.height) };
clampedScissors[i].extent = VkExtent2D {
uint32_t(std::clamp<int32_t>(scissor.offset.x + scissor.extent.width, clampedScissors[i].offset.x, renderSize.width) - clampedScissors[i].offset.x),
uint32_t(std::clamp<int32_t>(scissor.offset.y + scissor.extent.height, clampedScissors[i].offset.y, renderSize.height) - clampedScissors[i].offset.y) };
}
m_cmd->cmdSetViewport(m_state.vp.viewportCount, m_state.vp.viewports.data());
m_cmd->cmdSetScissor(m_state.vp.viewportCount, m_state.vp.scissorRects.data());
m_cmd->cmdSetScissor(m_state.vp.viewportCount, clampedScissors.data());
}
if (unlikely(m_flags.all(DxvkContextFlag::GpDirtyDepthStencilState,