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Merge pull request #3592 from ReinUsesLisp/ipa

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shader_decompiler: Remove FragCoord.w hack and change IPA implementation
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Fernando Sahmkow 2020-04-05 19:29:40 -04:00 • committed by GitHub
commit 69277de29d
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4 changed files with 74 additions and 68 deletions
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17
src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
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@ -35,7 +35,7 @@ namespace {
using Sirit::Id;
using Tegra::Engines::ShaderType;
using Tegra::Shader::Attribute;
using Tegra::Shader::AttributeUse;
using Tegra::Shader::PixelImap;
using Tegra::Shader::Register;
using namespace VideoCommon::Shader;
@ -752,16 +752,16 @@ private:
if (stage != ShaderType::Fragment) {
continue;
}
switch (header.ps.GetAttributeUse(location)) {
case AttributeUse::Constant:
switch (header.ps.GetPixelImap(location)) {
case PixelImap::Constant:
Decorate(id, spv::Decoration::Flat);
break;
case AttributeUse::ScreenLinear:
Decorate(id, spv::Decoration::NoPerspective);
break;
case AttributeUse::Perspective:
case PixelImap::Perspective:
// Default
break;
case PixelImap::ScreenLinear:
Decorate(id, spv::Decoration::NoPerspective);
break;
default:
UNREACHABLE_MSG("Unused attribute being fetched");
}
@ -1145,9 +1145,6 @@ private:
switch (attribute) {
case Attribute::Index::Position: {
if (stage == ShaderType::Fragment) {
if (element == 3) {
return {Constant(t_float, 1.0f), Type::Float};
}
return {OpLoad(t_float, AccessElement(t_in_float, frag_coord, element)),
Type::Float};
}