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shader_recompiler: add gl_Layer translation GS for older hardware

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This commit is contained in:
Liam 2022-11-30 17:16:00 -05:00
parent d6b63239ae
commit 3ef006b5ab
9 changed files with 230 additions and 6 deletions
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33
src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
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@ -46,6 +46,7 @@ MICROPROFILE_DECLARE(Vulkan_PipelineCache);
namespace {
using Shader::Backend::SPIRV::EmitSPIRV;
using Shader::Maxwell::ConvertLegacyToGeneric;
using Shader::Maxwell::GenerateGeometryPassthrough;
using Shader::Maxwell::MergeDualVertexPrograms;
using Shader::Maxwell::TranslateProgram;
using VideoCommon::ComputeEnvironment;
@ -60,6 +61,17 @@ auto MakeSpan(Container& container) {
return std::span(container.data(), container.size());
}
Shader::OutputTopology MaxwellToOutputTopology(Maxwell::PrimitiveTopology topology) {
switch (topology) {
case Maxwell::PrimitiveTopology::Points:
return Shader::OutputTopology::PointList;
case Maxwell::PrimitiveTopology::LineStrip:
return Shader::OutputTopology::LineStrip;
default:
return Shader::OutputTopology::TriangleStrip;
}
}
Shader::CompareFunction MaxwellToCompareFunction(Maxwell::ComparisonOp comparison) {
switch (comparison) {
case Maxwell::ComparisonOp::Never_D3D:
@ -327,6 +339,7 @@ PipelineCache::PipelineCache(RasterizerVulkan& rasterizer_, const Device& device
.needs_demote_reorder = driver_id == VK_DRIVER_ID_AMD_PROPRIETARY_KHR ||
driver_id == VK_DRIVER_ID_AMD_OPEN_SOURCE_KHR,
.support_snorm_render_buffer = true,
.support_viewport_index_layer = device.IsExtShaderViewportIndexLayerSupported(),
};
}
@ -509,7 +522,19 @@ std::unique_ptr<GraphicsPipeline> PipelineCache::CreateGraphicsPipeline(
std::array<Shader::IR::Program, Maxwell::MaxShaderProgram> programs;
const bool uses_vertex_a{key.unique_hashes[0] != 0};
const bool uses_vertex_b{key.unique_hashes[1] != 0};
// Layer passthrough generation for devices without VK_EXT_shader_viewport_index_layer
Shader::IR::Program* layer_source_program{};
for (size_t index = 0; index < Maxwell::MaxShaderProgram; ++index) {
const bool is_emulated_stage = layer_source_program != nullptr &&
index == static_cast<u32>(Maxwell::ShaderType::Geometry);
if (key.unique_hashes[index] == 0 && is_emulated_stage) {
auto topology = MaxwellToOutputTopology(key.state.topology);
programs[index] = GenerateGeometryPassthrough(pools.inst, pools.block, host_info,
*layer_source_program, topology);
continue;
}
if (key.unique_hashes[index] == 0) {
continue;
}
@ -530,6 +555,10 @@ std::unique_ptr<GraphicsPipeline> PipelineCache::CreateGraphicsPipeline(
auto program_vb{TranslateProgram(pools.inst, pools.block, env, cfg, host_info)};
programs[index] = MergeDualVertexPrograms(program_va, program_vb, env);
}
if (programs[index].info.requires_layer_emulation) {
layer_source_program = &programs[index];
}
}
std::array<const Shader::Info*, Maxwell::MaxShaderStage> infos{};
std::array<vk::ShaderModule, Maxwell::MaxShaderStage> modules;
@ -538,7 +567,9 @@ std::unique_ptr<GraphicsPipeline> PipelineCache::CreateGraphicsPipeline(
Shader::Backend::Bindings binding;
for (size_t index = uses_vertex_a && uses_vertex_b ? 1 : 0; index < Maxwell::MaxShaderProgram;
++index) {
if (key.unique_hashes[index] == 0) {
const bool is_emulated_stage = layer_source_program != nullptr &&
index == static_cast<u32>(Maxwell::ShaderType::Geometry);
if (key.unique_hashes[index] == 0 && !is_emulated_stage) {
continue;
}
UNIMPLEMENTED_IF(index == 0);