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Merge branch 'master' into vulkan

This commit is contained in:
Triang3l 2022-06-30 22:15:29 +03:00
parent c0c3666e12 7e691d5ef1
commit 6772c88141
1 changed files with 29 additions and 17 deletions
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46
src/xenia/gpu/dxbc_shader_translator_om.cc
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@ -3012,31 +3012,43 @@ void DxbcShaderTranslator::CompletePixelShader() {
// checked, but let's assume this means "always", not "less, equal or
// greater".
// TODO(Triang3l): Check how alpha test works with NaN on Direct3D 9.
a_.OpINE(alpha_test_op_dest, alpha_test_mask_src, dxbc::Src::LU(0b111));
a_.OpINE(alpha_test_op_dest, alpha_test_mask_src,
dxbc::Src::LU(uint32_t(xenos::CompareFunction::kAlways)));
// Don't do the test if the mode is "always".
a_.OpIf(true, alpha_test_op_src);
{
// Do the test. Can't use subtraction and sign because of float specials.
// Do the test.
dxbc::Src alpha_src(
dxbc::Src::R(system_temps_color_[0], dxbc::Src::kWWWW));
dxbc::Src alpha_test_reference_src(LoadSystemConstant(
SystemConstants::Index::kAlphaTestReference,
offsetof(SystemConstants, alpha_test_reference), dxbc::Src::kXXXX));
// Less than.
a_.OpLT(alpha_test_op_dest, alpha_src, alpha_test_reference_src);
a_.OpOr(alpha_test_op_dest, alpha_test_op_src,
dxbc::Src::LU(~uint32_t(1 << 0)));
a_.OpAnd(alpha_test_mask_dest, alpha_test_mask_src, alpha_test_op_src);
// Equals to.
a_.OpEq(alpha_test_op_dest, alpha_src, alpha_test_reference_src);
a_.OpOr(alpha_test_op_dest, alpha_test_op_src,
dxbc::Src::LU(~uint32_t(1 << 1)));
a_.OpAnd(alpha_test_mask_dest, alpha_test_mask_src, alpha_test_op_src);
// Greater than.
a_.OpLT(alpha_test_op_dest, alpha_test_reference_src, alpha_src);
a_.OpOr(alpha_test_op_dest, alpha_test_op_src,
dxbc::Src::LU(~uint32_t(1 << 2)));
a_.OpAnd(alpha_test_mask_dest, alpha_test_mask_src, alpha_test_op_src);
// Handle "not equal" specially (specifically as "not equal" so it's true
// for NaN, not "less or greater" which is false for NaN).
a_.OpIEq(alpha_test_op_dest, alpha_test_mask_src,
dxbc::Src::LU(uint32_t(xenos::CompareFunction::kNotEqual)));
a_.OpIf(true, alpha_test_op_src);
{ a_.OpNE(alpha_test_mask_dest, alpha_src, alpha_test_reference_src); }
a_.OpElse();
{
// Less than.
a_.OpLT(alpha_test_op_dest, alpha_src, alpha_test_reference_src);
a_.OpOr(alpha_test_op_dest, alpha_test_op_src,
dxbc::Src::LU(~uint32_t(1 << 0)));
a_.OpAnd(alpha_test_mask_dest, alpha_test_mask_src, alpha_test_op_src);
// Equals to.
a_.OpEq(alpha_test_op_dest, alpha_src, alpha_test_reference_src);
a_.OpOr(alpha_test_op_dest, alpha_test_op_src,
dxbc::Src::LU(~uint32_t(1 << 1)));
a_.OpAnd(alpha_test_mask_dest, alpha_test_mask_src, alpha_test_op_src);
// Greater than.
a_.OpLT(alpha_test_op_dest, alpha_test_reference_src, alpha_src);
a_.OpOr(alpha_test_op_dest, alpha_test_op_src,
dxbc::Src::LU(~uint32_t(1 << 2)));
a_.OpAnd(alpha_test_mask_dest, alpha_test_mask_src, alpha_test_op_src);
}
// Close the "not equal" check.
a_.OpEndIf();
// Discard the pixel if it has failed the test.
if (edram_rov_used_) {
a_.OpRetC(false, alpha_test_mask_src);