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Add geometry passthrough shader support for vertex layer writes

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This commit is contained in:
Billy Laws 2022-12-31 23:07:07 +00:00
parent ec519a7d52
commit 68ad052cb1
1 changed files with 22 additions and 3 deletions
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25
app/src/main/cpp/skyline/gpu/interconnect/maxwell_3d/pipeline_manager.cpp
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@ -1,4 +1,5 @@
// SPDX-License-Identifier: MPL-2.0
// Copyright © 2022 yuzu Team and Contributors (https://github.com/yuzu-emu/)
// Copyright © 2022 Skyline Team and Contributors (https://github.com/skyline-emu/)
#include <gpu/texture/texture.h>
@ -93,6 +94,16 @@ namespace skyline::gpu::interconnect::maxwell3d {
}
}
static Shader::OutputTopology ConvertShaderOutputTopology(engine::DrawTopology topology) {
switch (topology) {
case engine::DrawTopology::Points:
return Shader::OutputTopology::PointList;
case engine::DrawTopology::LineStrip:
return Shader::OutputTopology::LineStrip;
default:
return Shader::OutputTopology::TriangleStrip;
}
}
/**
* @notes Roughly based on https://github.com/yuzu-emu/yuzu/blob/4ffbbc534884841f9a5536e57539bf3d1642af26/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp#L127
*/
@ -183,11 +194,16 @@ namespace skyline::gpu::interconnect::maxwell3d {
auto stageIdx{[](PipelineStage stage) { return static_cast<u8>(stage); }};
std::array<Shader::IR::Program, engine::PipelineCount> programs;
Shader::IR::Program *layerConversionSourceProgram{};
bool ignoreVertexCullBeforeFetch{};
for (u32 i{}; i < engine::PipelineCount; i++) {
if (!packedState.shaderHashes[i])
if (!packedState.shaderHashes[i]) {
if (i == stageIdx(PipelineStage::Geometry) && layerConversionSourceProgram)
programs[i] = gpu.shader.GenerateGeometryPassthroughShader(*layerConversionSourceProgram, ConvertShaderOutputTopology(packedState.topology));
continue;
}
auto binary{accessor.GetShaderBinary(i)};
auto program{gpu.shader.ParseGraphicsShader(
@ -208,16 +224,19 @@ namespace skyline::gpu::interconnect::maxwell3d {
} else {
programs[i] = program;
}
if (programs[i].info.requires_layer_emulation)
layerConversionSourceProgram = &programs[i];
}
bool hasGeometry{packedState.shaderHashes[stageIdx(PipelineStage::Geometry)] && programs[stageIdx(PipelineStage::Geometry)].is_geometry_passthrough};
bool hasGeometry{packedState.shaderHashes[stageIdx(PipelineStage::Geometry)] && !programs[stageIdx(PipelineStage::Geometry)].is_geometry_passthrough};
Shader::Backend::Bindings bindings{};
Shader::IR::Program *lastProgram{};
std::array<Pipeline::ShaderStage, engine::ShaderStageCount> shaderStages{};
for (u32 i{stageIdx(ignoreVertexCullBeforeFetch ? PipelineStage::Vertex : PipelineStage::VertexCullBeforeFetch)}; i < engine::PipelineCount; i++) {
if (!packedState.shaderHashes[i])
if (!packedState.shaderHashes[i] && !(i == stageIdx(PipelineStage::Geometry) && layerConversionSourceProgram))
continue;
auto runtimeInfo{MakeRuntimeInfo(packedState, programs[i], lastProgram, hasGeometry)};