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Merge pull request #3344 from ReinUsesLisp/vk-botw

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vk_shader_decompiler: Disable default values on unwritten render targets
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bunnei 2020-01-24 17:31:55 -05:00 committed by GitHub
commit dfd998216c
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 16 additions and 19 deletions
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3
src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
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@ -325,9 +325,6 @@ VKPipelineCache::DecompileShaders(const GraphicsPipelineCacheKey& key) {
specialization.tessellation.primitive = fixed_state.tessellation.primitive;
specialization.tessellation.spacing = fixed_state.tessellation.spacing;
specialization.tessellation.clockwise = fixed_state.tessellation.clockwise;
for (const auto& rt : key.renderpass_params.color_attachments) {
specialization.enabled_rendertargets.set(rt.index);
}
SPIRVProgram program;
std::vector<vk::DescriptorSetLayoutBinding> bindings;

29
src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
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@ -542,11 +542,10 @@ private:
return;
}
for (u32 rt = 0; rt < static_cast<u32>(frag_colors.size()); ++rt) {
if (!specialization.enabled_rendertargets[rt]) {
for (u32 rt = 0; rt < static_cast<u32>(std::size(frag_colors)); ++rt) {
if (!IsRenderTargetEnabled(rt)) {
continue;
}
const Id id = AddGlobalVariable(OpVariable(t_out_float4, spv::StorageClass::Output));
Name(id, fmt::format("frag_color{}", rt));
Decorate(id, spv::Decoration::Location, rt);
@ -852,6 +851,15 @@ private:
return binding;
}
bool IsRenderTargetEnabled(u32 rt) const {
for (u32 component = 0; component < 4; ++component) {
if (header.ps.IsColorComponentOutputEnabled(rt, component)) {
return true;
}
}
return false;
}
bool IsInputAttributeArray() const {
return stage == ShaderType::TesselationControl || stage == ShaderType::TesselationEval ||
stage == ShaderType::Geometry;
@ -1889,19 +1897,14 @@ private:
// rendertargets/components are skipped in the register assignment.
u32 current_reg = 0;
for (u32 rt = 0; rt < Maxwell::NumRenderTargets; ++rt) {
if (!specialization.enabled_rendertargets[rt]) {
// Skip rendertargets that are not enabled
continue;
}
// TODO(Subv): Figure out how dual-source blending is configured in the Switch.
for (u32 component = 0; component < 4; ++component) {
const Id pointer = AccessElement(t_out_float, frag_colors.at(rt), component);
if (header.ps.IsColorComponentOutputEnabled(rt, component)) {
OpStore(pointer, SafeGetRegister(current_reg));
++current_reg;
} else {
OpStore(pointer, component == 3 ? v_float_one : v_float_zero);
if (!header.ps.IsColorComponentOutputEnabled(rt, component)) {
continue;
}
const Id pointer = AccessElement(t_out_float, frag_colors[rt], component);
OpStore(pointer, SafeGetRegister(current_reg));
++current_reg;
}
}
if (header.ps.omap.depth) {

3
src/video_core/renderer_vulkan/vk_shader_decompiler.h
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@ -102,9 +102,6 @@ struct Specialization final {
Maxwell::TessellationSpacing spacing{};
bool clockwise{};
} tessellation;
// Fragment specific
std::bitset<8> enabled_rendertargets;
};
// Old gcc versions don't consider this trivially copyable.
// static_assert(std::is_trivially_copyable_v<Specialization>);