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shader: Better interpolation and disabled attributes support

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This commit is contained in:
ReinUsesLisp 2021-03-27 04:59:58 -03:00 • committed by ameerj
parent 675a82416d
commit dbd882ddeb
9 changed files with 101 additions and 25 deletions
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35
src/shader_recompiler/frontend/maxwell/program.cpp
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@ -27,6 +27,40 @@ static void RemoveUnreachableBlocks(IR::Program& program) {
});
}
static void CollectInterpolationInfo(Environment& env, IR::Program& program) {
if (program.stage != Stage::Fragment) {
return;
}
const ProgramHeader& sph{env.SPH()};
for (size_t index = 0; index < program.info.input_generics.size(); ++index) {
std::optional<PixelImap> imap;
for (const PixelImap value : sph.ps.GenericInputMap(static_cast<u32>(index))) {
if (value == PixelImap::Unused) {
continue;
}
if (imap && imap != value) {
throw NotImplementedException("Per component interpolation");
}
imap = value;
}
if (!imap) {
continue;
}
program.info.input_generics[index].interpolation = [&] {
switch (*imap) {
case PixelImap::Unused:
case PixelImap::Perspective:
return Interpolation::Smooth;
case PixelImap::Constant:
return Interpolation::Flat;
case PixelImap::ScreenLinear:
return Interpolation::NoPerspective;
}
throw NotImplementedException("Unknown interpolation {}", *imap);
}();
}
}
IR::Program TranslateProgram(ObjectPool<IR::Inst>& inst_pool, ObjectPool<IR::Block>& block_pool,
Environment& env, Flow::CFG& cfg) {
IR::Program program;
@ -51,6 +85,7 @@ IR::Program TranslateProgram(ObjectPool<IR::Inst>& inst_pool, ObjectPool<IR::Blo
Optimization::IdentityRemovalPass(program);
Optimization::VerificationPass(program);
Optimization::CollectShaderInfoPass(program);
CollectInterpolationInfo(env, program);
return program;
}