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[D3D12] Non-adaptive quad tessellation

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Triang3l
2020-04-19 23:11:52 +03:00
parent e6068e0d64
commit f83809f7a1
3 changed files with 48 additions and 0 deletions
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34
src/xenia/gpu/dxbc_shader_translator.cc
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@@ -530,6 +530,40 @@ void DxbcShaderTranslator::StartVertexOrDomainShader() {
}
break;
case Shader::HostVertexShaderType::kQuadDomainConstant:
assert_true(register_count() >= 2);
if (register_count() >= 1) {
// Copy the domain location to r0.xy.
DxbcOpMov(uses_register_dynamic_addressing() ? DxbcDest::X(0, 0, 0b0011)
: DxbcDest::R(0, 0b0011),
DxbcSrc::VDomain());
// Control point indices according to the shader from the main menu of
// Defender, which starts from `cndeq r2, c255.xxxy, r1.xyzz, r0.zzzz`,
// where c255.x is 0, and c255.y is 1.
// r0.z for (1 - r0.x) * (1 - r0.y)
// r1.x for r0.x * (1 - r0.y)
// r1.y for r0.x * r0.y
// r1.z for (1 - r0.x) * r0.y
DxbcOpMov(
uses_register_dynamic_addressing() ? DxbcDest::X(0, 0, 0b0100)
: DxbcDest::R(0, 0b0100),
DxbcSrc::VICP(0, uint32_t(InOutRegister::kDSInControlPointIndex),
DxbcSrc::kXXXX));
if (register_count() >= 2) {
DxbcDest r1_dest(uses_register_dynamic_addressing()
? DxbcDest::X(0, 1)
: DxbcDest::R(1));
for (uint32_t i = 0; i < 3; ++i) {
DxbcOpMov(
r1_dest.Mask(1 << i),
DxbcSrc::VICP(1 + i,
uint32_t(InOutRegister::kDSInControlPointIndex),
DxbcSrc::kXXXX));
}
}
}
break;
case Shader::HostVertexShaderType::kQuadDomainAdaptive:
assert_true(register_count() >= 2);
if (register_count() >= 1) {