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[D3D12] Don't round float24 depth when it's known to be exact

This commit is contained in:
Triang3l 2022-06-22 13:14:38 +03:00
parent 7869b080d3
commit cbf0476d42
1 changed files with 24 additions and 4 deletions
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28
src/xenia/gpu/d3d12/d3d12_render_target_cache.cc
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@ -3545,8 +3545,13 @@ D3D12RenderTargetCache::GetOrCreateTransferPipelines(TransferShaderKey key) {
} break;
case xenos::DepthRenderTargetFormat::kD24FS8: {
// Convert using r1.y as temporary.
// When converting the depth in pixel shaders, it's always exact,
// truncating not to insert additional rounding instructions.
DxbcShaderTranslator::PreClampedDepthTo20e4(
a, i, 3, i, 3, 1, 1, depth_float24_round(), true);
a, i, 3, i, 3, 1, 1,
!depth_float24_convert_in_pixel_shader() &&
depth_float24_round(),
true);
} break;
}
// Merge depth and stencil into r0/r1.x.
@ -3732,8 +3737,13 @@ D3D12RenderTargetCache::GetOrCreateTransferPipelines(TransferShaderKey key) {
} break;
case xenos::DepthRenderTargetFormat::kD24FS8: {
// Convert using r1.y as temporary.
// When converting the depth in pixel shaders, it's always exact,
// truncating not to insert additional rounding instructions.
DxbcShaderTranslator::PreClampedDepthTo20e4(
a, 1, 3, 1, 3, 1, 1, depth_float24_round(), true);
a, 1, 3, 1, 3, 1, 1,
!depth_float24_convert_in_pixel_shader() &&
depth_float24_round(),
true);
} break;
}
if (dest_is_color) {
@ -4108,8 +4118,14 @@ D3D12RenderTargetCache::GetOrCreateTransferPipelines(TransferShaderKey key) {
dxbc::Src::R(0, dxbc::Src::kYYYY));
} break;
case xenos::DepthRenderTargetFormat::kD24FS8: {
// When converting the depth in pixel shaders, it's always
// exact, truncating not to insert additional rounding
// instructions.
DxbcShaderTranslator::PreClampedDepthTo20e4(
a, 0, 1, 0, 0, 0, 2, depth_float24_round(), true);
a, 0, 1, 0, 0, 0, 2,
!depth_float24_convert_in_pixel_shader() &&
depth_float24_round(),
true);
} break;
}
a.OpIEq(dxbc::Dest::R(0, 0b0010), dxbc::Src::R(0, dxbc::Src::kYYYY),
@ -6170,8 +6186,12 @@ ID3D12PipelineState* D3D12RenderTargetCache::GetOrCreateDumpPipeline(
case xenos::DepthRenderTargetFormat::kD24FS8:
// Convert to [0, 2) float24 from [0, 1) float32, using r0.x as
// temporary.
// When converting the depth in pixel shaders, it's always exact,
// truncating not to insert additional rounding instructions.
DxbcShaderTranslator::PreClampedDepthTo20e4(
a, 1, 0, 1, 0, 0, 0, depth_float24_round(), true);
a, 1, 0, 1, 0, 0, 0,
!depth_float24_convert_in_pixel_shader() && depth_float24_round(),
true);
break;
}
// Combine 24-bit depth and stencil into r1.x.