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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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1
src/shader_recompiler/CMakeLists.txt
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@ -221,6 +221,7 @@ add_library(shader_recompiler STATIC
ir_opt/dual_vertex_pass.cpp
ir_opt/global_memory_to_storage_buffer_pass.cpp
ir_opt/identity_removal_pass.cpp
ir_opt/layer_pass.cpp
ir_opt/lower_fp16_to_fp32.cpp
ir_opt/lower_int64_to_int32.cpp
ir_opt/passes.h

81
src/shader_recompiler/frontend/maxwell/translate_program.cpp
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@ -9,6 +9,7 @@
#include "common/settings.h"
#include "shader_recompiler/exception.h"
#include "shader_recompiler/frontend/ir/basic_block.h"
#include "shader_recompiler/frontend/ir/ir_emitter.h"
#include "shader_recompiler/frontend/ir/post_order.h"
#include "shader_recompiler/frontend/maxwell/structured_control_flow.h"
#include "shader_recompiler/frontend/maxwell/translate/translate.h"
@ -233,6 +234,8 @@ IR::Program TranslateProgram(ObjectPool<IR::Inst>& inst_pool, ObjectPool<IR::Blo
Optimization::VerificationPass(program);
}
Optimization::CollectShaderInfoPass(env, program);
Optimization::LayerPass(program, host_info);
CollectInterpolationInfo(env, program);
AddNVNStorageBuffers(program);
return program;
@ -331,4 +334,82 @@ void ConvertLegacyToGeneric(IR::Program& program, const Shader::RuntimeInfo& run
}
}
IR::Program GenerateGeometryPassthrough(ObjectPool<IR::Inst>& inst_pool,
ObjectPool<IR::Block>& block_pool,
const HostTranslateInfo& host_info,
IR::Program& source_program,
Shader::OutputTopology output_topology) {
IR::Program program;
program.stage = Stage::Geometry;
program.output_topology = output_topology;
switch (output_topology) {
case OutputTopology::PointList:
program.output_vertices = 1;
break;
case OutputTopology::LineStrip:
program.output_vertices = 2;
break;
default:
program.output_vertices = 3;
break;
}
program.is_geometry_passthrough = false;
program.info.loads.mask = source_program.info.stores.mask;
program.info.stores.mask = source_program.info.stores.mask;
program.info.stores.Set(IR::Attribute::Layer, true);
program.info.stores.Set(source_program.info.emulated_layer, false);
IR::Block* current_block = block_pool.Create(inst_pool);
auto& node{program.syntax_list.emplace_back()};
node.type = IR::AbstractSyntaxNode::Type::Block;
node.data.block = current_block;
IR::IREmitter ir{*current_block};
for (u32 i = 0; i < program.output_vertices; i++) {
// Assign generics from input
for (u32 j = 0; j < 32; j++) {
if (!program.info.stores.Generic(j)) {
continue;
}
const IR::Attribute attr = IR::Attribute::Generic0X + (j * 4);
ir.SetAttribute(attr + 0, ir.GetAttribute(attr + 0, ir.Imm32(i)), ir.Imm32(0));
ir.SetAttribute(attr + 1, ir.GetAttribute(attr + 1, ir.Imm32(i)), ir.Imm32(0));
ir.SetAttribute(attr + 2, ir.GetAttribute(attr + 2, ir.Imm32(i)), ir.Imm32(0));
ir.SetAttribute(attr + 3, ir.GetAttribute(attr + 3, ir.Imm32(i)), ir.Imm32(0));
}
// Assign position from input
const IR::Attribute attr = IR::Attribute::PositionX;
ir.SetAttribute(attr + 0, ir.GetAttribute(attr + 0, ir.Imm32(i)), ir.Imm32(0));
ir.SetAttribute(attr + 1, ir.GetAttribute(attr + 1, ir.Imm32(i)), ir.Imm32(0));
ir.SetAttribute(attr + 2, ir.GetAttribute(attr + 2, ir.Imm32(i)), ir.Imm32(0));
ir.SetAttribute(attr + 3, ir.GetAttribute(attr + 3, ir.Imm32(i)), ir.Imm32(0));
// Assign layer
ir.SetAttribute(IR::Attribute::Layer, ir.GetAttribute(source_program.info.emulated_layer),
ir.Imm32(0));
// Emit vertex
ir.EmitVertex(ir.Imm32(0));
}
ir.EndPrimitive(ir.Imm32(0));
IR::Block* return_block{block_pool.Create(inst_pool)};
IR::IREmitter{*return_block}.Epilogue();
current_block->AddBranch(return_block);
auto& merge{program.syntax_list.emplace_back()};
merge.type = IR::AbstractSyntaxNode::Type::Block;
merge.data.block = return_block;
program.syntax_list.emplace_back().type = IR::AbstractSyntaxNode::Type::Return;
program.blocks = GenerateBlocks(program.syntax_list);
program.post_order_blocks = PostOrder(program.syntax_list.front());
Optimization::SsaRewritePass(program);
return program;
}
} // namespace Shader::Maxwell

9
src/shader_recompiler/frontend/maxwell/translate_program.h
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@ -25,4 +25,13 @@ namespace Shader::Maxwell {
void ConvertLegacyToGeneric(IR::Program& program, const RuntimeInfo& runtime_info);
// Maxwell v1 and older Nvidia cards don't support setting gl_Layer from non-geometry stages.
// This creates a workaround by setting the layer as a generic output and creating a
// passthrough geometry shader that reads the generic and sets the layer.
[[nodiscard]] IR::Program GenerateGeometryPassthrough(ObjectPool<IR::Inst>& inst_pool,
ObjectPool<IR::Block>& block_pool,
const HostTranslateInfo& host_info,
IR::Program& source_program,
Shader::OutputTopology output_topology);
} // namespace Shader::Maxwell

1
src/shader_recompiler/host_translate_info.h
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@ -14,6 +14,7 @@ struct HostTranslateInfo {
bool support_int64{}; ///< True when the device supports 64-bit integers
bool needs_demote_reorder{}; ///< True when the device needs DemoteToHelperInvocation reordered
bool support_snorm_render_buffer{}; ///< True when the device supports SNORM render buffers
bool support_viewport_index_layer{}; ///< True when the device supports gl_Layer in VS
};
} // namespace Shader

68
src/shader_recompiler/ir_opt/layer_pass.cpp Normal file
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@ -0,0 +1,68 @@
// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <algorithm>
#include <bit>
#include <optional>
#include <boost/container/small_vector.hpp>
#include "shader_recompiler/environment.h"
#include "shader_recompiler/frontend/ir/basic_block.h"
#include "shader_recompiler/frontend/ir/breadth_first_search.h"
#include "shader_recompiler/frontend/ir/ir_emitter.h"
#include "shader_recompiler/host_translate_info.h"
#include "shader_recompiler/ir_opt/passes.h"
#include "shader_recompiler/shader_info.h"
namespace Shader::Optimization {
static IR::Attribute EmulatedLayerAttribute(VaryingState& stores) {
for (u32 i = 0; i < 32; i++) {
if (!stores.Generic(i)) {
return IR::Attribute::Generic0X + (i * 4);
}
}
return IR::Attribute::Layer;
}
static bool PermittedProgramStage(Stage stage) {
switch (stage) {
case Stage::VertexA:
case Stage::VertexB:
case Stage::TessellationControl:
case Stage::TessellationEval:
return true;
default:
return false;
}
}
void LayerPass(IR::Program& program, const HostTranslateInfo& host_info) {
if (host_info.support_viewport_index_layer || !PermittedProgramStage(program.stage)) {
return;
}
const auto end{program.post_order_blocks.end()};
const auto layer_attribute = EmulatedLayerAttribute(program.info.stores);
bool requires_layer_emulation = false;
for (auto block = program.post_order_blocks.begin(); block != end; ++block) {
for (IR::Inst& inst : (*block)->Instructions()) {
if (inst.GetOpcode() == IR::Opcode::SetAttribute &&
inst.Arg(0).Attribute() == IR::Attribute::Layer) {
requires_layer_emulation = true;
inst.SetArg(0, IR::Value{layer_attribute});
}
}
}
if (requires_layer_emulation) {
program.info.requires_layer_emulation = true;
program.info.emulated_layer = layer_attribute;
program.info.stores.Set(IR::Attribute::Layer, false);
program.info.stores.Set(layer_attribute, true);
}
}
} // namespace Shader::Optimization

1
src/shader_recompiler/ir_opt/passes.h
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@ -23,6 +23,7 @@ void RescalingPass(IR::Program& program);
void SsaRewritePass(IR::Program& program);
void PositionPass(Environment& env, IR::Program& program);
void TexturePass(Environment& env, IR::Program& program, const HostTranslateInfo& host_info);
void LayerPass(IR::Program& program, const HostTranslateInfo& host_info);
void VerificationPass(const IR::Program& program);
// Dual Vertex

3
src/shader_recompiler/shader_info.h
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@ -204,6 +204,9 @@ struct Info {
u32 nvn_buffer_base{};
std::bitset<16> nvn_buffer_used{};
bool requires_layer_emulation{};
IR::Attribute emulated_layer{};
boost::container::static_vector<ConstantBufferDescriptor, MAX_CBUFS>
constant_buffer_descriptors;
boost::container::static_vector<StorageBufferDescriptor, MAX_SSBOS> storage_buffers_descriptors;

37
src/video_core/renderer_opengl/gl_shader_cache.cpp
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@ -39,6 +39,7 @@ using Shader::Backend::GLASM::EmitGLASM;
using Shader::Backend::GLSL::EmitGLSL;
using Shader::Backend::SPIRV::EmitSPIRV;
using Shader::Maxwell::ConvertLegacyToGeneric;
using Shader::Maxwell::GenerateGeometryPassthrough;
using Shader::Maxwell::MergeDualVertexPrograms;
using Shader::Maxwell::TranslateProgram;
using VideoCommon::ComputeEnvironment;
@ -56,6 +57,17 @@ 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::RuntimeInfo MakeRuntimeInfo(const GraphicsPipelineKey& key,
const Shader::IR::Program& program,
const Shader::IR::Program* previous_program,
@ -220,6 +232,7 @@ ShaderCache::ShaderCache(RasterizerOpenGL& rasterizer_, Core::Frontend::EmuWindo
.support_int64 = device.HasShaderInt64(),
.needs_demote_reorder = device.IsAmd(),
.support_snorm_render_buffer = false,
.support_viewport_index_layer = device.HasVertexViewportLayer(),
} {
if (use_asynchronous_shaders) {
workers = CreateWorkers();
@ -314,9 +327,7 @@ GraphicsPipeline* ShaderCache::CurrentGraphicsPipeline() {
const auto& regs{maxwell3d->regs};
graphics_key.raw = 0;
graphics_key.early_z.Assign(regs.mandated_early_z != 0 ? 1 : 0);
graphics_key.gs_input_topology.Assign(graphics_key.unique_hashes[4] != 0
? regs.draw.topology.Value()
: Maxwell::PrimitiveTopology{});
graphics_key.gs_input_topology.Assign(regs.draw.topology.Value());
graphics_key.tessellation_primitive.Assign(regs.tessellation.params.domain_type.Value());
graphics_key.tessellation_spacing.Assign(regs.tessellation.params.spacing.Value());
graphics_key.tessellation_clockwise.Assign(
@ -415,7 +426,19 @@ std::unique_ptr<GraphicsPipeline> ShaderCache::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 GL_ARB_shader_viewport_layer_array
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.gs_input_topology);
programs[index] = GenerateGeometryPassthrough(pools.inst, pools.block, host_info,
*layer_source_program, topology);
continue;
}
if (key.unique_hashes[index] == 0) {
continue;
}
@ -443,6 +466,10 @@ std::unique_ptr<GraphicsPipeline> ShaderCache::CreateGraphicsPipeline(
Shader::NumDescriptors(program_vb.info.storage_buffers_descriptors);
programs[index] = MergeDualVertexPrograms(program_va, program_vb, env);
}
if (programs[index].info.requires_layer_emulation) {
layer_source_program = &programs[index];
}
}
const u32 glasm_storage_buffer_limit{device.GetMaxGLASMStorageBufferBlocks()};
const bool glasm_use_storage_buffers{total_storage_buffers <= glasm_storage_buffer_limit};
@ -456,7 +483,9 @@ std::unique_ptr<GraphicsPipeline> ShaderCache::CreateGraphicsPipeline(
const bool use_glasm{device.UseAssemblyShaders()};
const size_t first_index = uses_vertex_a && uses_vertex_b ? 1 : 0;
for (size_t index = first_index; 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);

33
src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
View File

@ -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);