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shader: Implement VertexA stage

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This commit is contained in:
FernandoS27
2021-04-19 01:03:38 +02:00
committed by ameerj
parent da936d6ad8
commit b541f5e5e3
12 changed files with 180 additions and 3 deletions
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1
src/shader_recompiler/CMakeLists.txt
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@@ -162,6 +162,7 @@ add_library(shader_recompiler STATIC
ir_opt/collect_shader_info_pass.cpp
ir_opt/constant_propagation_pass.cpp
ir_opt/dead_code_elimination_pass.cpp
ir_opt/dual_vertex_pass.cpp
ir_opt/global_memory_to_storage_buffer_pass.cpp
ir_opt/identity_removal_pass.cpp
ir_opt/lower_fp16_to_fp32.cpp

1
src/shader_recompiler/backend/spirv/emit_spirv.h
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@@ -25,6 +25,7 @@ void EmitBranchConditional(EmitContext& ctx, Id condition, Id true_label, Id fal
void EmitLoopMerge(EmitContext& ctx, Id merge_label, Id continue_label);
void EmitSelectionMerge(EmitContext& ctx, Id merge_label);
void EmitReturn(EmitContext& ctx);
void EmitJoin(EmitContext& ctx);
void EmitUnreachable(EmitContext& ctx);
void EmitDemoteToHelperInvocation(EmitContext& ctx, Id continue_label);
void EmitBarrier(EmitContext& ctx);

4
src/shader_recompiler/backend/spirv/emit_spirv_control_flow.cpp
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@@ -26,6 +26,10 @@ void EmitReturn(EmitContext& ctx) {
ctx.OpReturn();
}
void EmitJoin(EmitContext&) {
throw NotImplementedException("Join shouldn't be emitted");
}
void EmitUnreachable(EmitContext& ctx) {
ctx.OpUnreachable();
}

1
src/shader_recompiler/frontend/ir/microinstruction.cpp
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@@ -61,6 +61,7 @@ bool Inst::MayHaveSideEffects() const noexcept {
case Opcode::LoopMerge:
case Opcode::SelectionMerge:
case Opcode::Return:
case Opcode::Join:
case Opcode::Unreachable:
case Opcode::DemoteToHelperInvocation:
case Opcode::Barrier:

1
src/shader_recompiler/frontend/ir/opcodes.inc
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@@ -13,6 +13,7 @@ OPCODE(BranchConditional, Void, U1,
OPCODE(LoopMerge, Void, Label, Label, )
OPCODE(SelectionMerge, Void, Label, )
OPCODE(Return, Void, )
OPCODE(Join, Void, )
OPCODE(Unreachable, Void, )
OPCODE(DemoteToHelperInvocation, Void, Label, )

28
src/shader_recompiler/frontend/maxwell/program.cpp
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@@ -150,4 +150,32 @@ IR::Program TranslateProgram(ObjectPool<IR::Inst>& inst_pool, ObjectPool<IR::Blo
return program;
}
IR::Program MergeDualVertexPrograms(IR::Program& vertex_a, IR::Program& vertex_b,
Environment& env2) {
IR::Program program{};
Optimization::VertexATransformPass(vertex_a);
Optimization::VertexBTransformPass(vertex_b);
program.blocks.swap(vertex_a.blocks);
for (IR::Block* block : vertex_b.blocks) {
program.blocks.push_back(block);
}
program.stage = Stage::VertexB;
program.info = vertex_a.info;
program.local_memory_size = std::max(vertex_a.local_memory_size, vertex_b.local_memory_size);
for (size_t index = 0; index < 32; index++) {
program.info.input_generics[index].used |= vertex_b.info.input_generics[index].used;
program.info.stores_generics[index] |= vertex_b.info.stores_generics[index];
}
Optimization::JoinTextureInfo(program.info, vertex_b.info);
Optimization::JoinStorageInfo(program.info, vertex_b.info);
Optimization::DualVertexJoinPass(program);
program.post_order_blocks = PostOrder(program.blocks);
Optimization::DeadCodeEliminationPass(program);
Optimization::IdentityRemovalPass(program);
Optimization::VerificationPass(program);
Optimization::CollectShaderInfoPass(env2, program);
return program;
}
} // namespace Shader::Maxwell

2
src/shader_recompiler/frontend/maxwell/program.h
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@@ -21,4 +21,6 @@ namespace Shader::Maxwell {
ObjectPool<IR::Block>& block_pool, Environment& env,
Flow::CFG& cfg);
[[nodiscard]] IR::Program MergeDualVertexPrograms(IR::Program& vertex_a, IR::Program& vertex_b,
Environment& env_vertex_b);
} // namespace Shader::Maxwell

74
src/shader_recompiler/ir_opt/dual_vertex_pass.cpp Normal file
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@@ -0,0 +1,74 @@
// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <ranges>
#include <tuple>
#include <type_traits>
#include "common/bit_cast.h"
#include "common/bit_util.h"
#include "shader_recompiler/exception.h"
#include "shader_recompiler/frontend/ir/ir_emitter.h"
#include "shader_recompiler/ir_opt/passes.h"
namespace Shader::Optimization {
void VertexATransformPass(IR::Program& program) {
bool replaced_join{};
bool eliminated_epilogue{};
for (IR::Block* const block : program.post_order_blocks) {
for (IR::Inst& inst : block->Instructions()) {
switch (inst.GetOpcode()) {
case IR::Opcode::Return:
inst.ReplaceOpcode(IR::Opcode::Join);
replaced_join = true;
break;
case IR::Opcode::Epilogue:
inst.Invalidate();
eliminated_epilogue = true;
break;
default:
break;
}
if (replaced_join && eliminated_epilogue) {
return;
}
}
}
}
void VertexBTransformPass(IR::Program& program) {
for (IR::Block* const block : program.post_order_blocks | std::views::reverse) {
for (IR::Inst& inst : block->Instructions()) {
if (inst.GetOpcode() == IR::Opcode::Prologue) {
return inst.Invalidate();
}
}
}
}
void DualVertexJoinPass(IR::Program& program) {
const auto& blocks = program.blocks;
s64 s = static_cast<s64>(blocks.size()) - 1;
if (s < 1) {
throw NotImplementedException("Dual Vertex Join pass failed, expected atleast 2 blocks!");
}
for (s64 index = 0; index < s; index++) {
IR::Block* const current_block = blocks[index];
IR::Block* const next_block = blocks[index + 1];
for (IR::Inst& inst : current_block->Instructions()) {
if (inst.GetOpcode() == IR::Opcode::Join) {
IR::IREmitter ir{*current_block, IR::Block::InstructionList::s_iterator_to(inst)};
ir.Branch(next_block);
inst.Invalidate();
// only 1 join should exist
return;
}
}
}
throw NotImplementedException("Dual Vertex Join pass failed, no join present!");
}
} // namespace Shader::Optimization

26
src/shader_recompiler/ir_opt/global_memory_to_storage_buffer_pass.cpp
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@@ -499,4 +499,30 @@ void GlobalMemoryToStorageBufferPass(IR::Program& program) {
}
}
template <typename Descriptors, typename Descriptor, typename Func>
static u32 Add(Descriptors& descriptors, const Descriptor& desc, Func&& pred) {
// TODO: Handle arrays
const auto it{std::ranges::find_if(descriptors, pred)};
if (it != descriptors.end()) {
return static_cast<u32>(std::distance(descriptors.begin(), it));
}
descriptors.push_back(desc);
return static_cast<u32>(descriptors.size()) - 1;
}
void JoinStorageInfo(Info& base, Info& source) {
auto& descriptors = base.storage_buffers_descriptors;
for (auto& desc : source.storage_buffers_descriptors) {
auto it{std::ranges::find_if(descriptors, [&desc](const auto& existing) {
return desc.cbuf_index == existing.cbuf_index &&
desc.cbuf_offset == existing.cbuf_offset && desc.count == existing.count;
})};
if (it != descriptors.end()) {
it->is_written |= desc.is_written;
continue;
}
descriptors.push_back(desc);
}
}
} // namespace Shader::Optimization

7
src/shader_recompiler/ir_opt/passes.h
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@@ -22,4 +22,11 @@ void SsaRewritePass(IR::Program& program);
void TexturePass(Environment& env, IR::Program& program);
void VerificationPass(const IR::Program& program);
// Dual Vertex
void VertexATransformPass(IR::Program& program);
void VertexBTransformPass(IR::Program& program);
void DualVertexJoinPass(IR::Program& program);
void JoinTextureInfo(Info& base, Info& source);
void JoinStorageInfo(Info& base, Info& source);
} // namespace Shader::Optimization

21
src/shader_recompiler/ir_opt/texture_pass.cpp
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@@ -426,4 +426,25 @@ void TexturePass(Environment& env, IR::Program& program) {
}
}
void JoinTextureInfo(Info& base, Info& source) {
Descriptors descriptors{
base.texture_buffer_descriptors,
base.image_buffer_descriptors,
base.texture_descriptors,
base.image_descriptors,
};
for (auto& desc : source.texture_buffer_descriptors) {
descriptors.Add(desc);
}
for (auto& desc : source.image_buffer_descriptors) {
descriptors.Add(desc);
}
for (auto& desc : source.texture_descriptors) {
descriptors.Add(desc);
}
for (auto& desc : source.image_descriptors) {
descriptors.Add(desc);
}
}
} // namespace Shader::Optimization

17
src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
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@@ -47,6 +47,7 @@ MICROPROFILE_DECLARE(Vulkan_PipelineCache);
namespace {
using Shader::Backend::SPIRV::EmitSPIRV;
using Shader::Maxwell::MergeDualVertexPrograms;
using Shader::Maxwell::TranslateProgram;
using VideoCommon::ComputeEnvironment;
using VideoCommon::FileEnvironment;
@@ -287,22 +288,32 @@ std::unique_ptr<GraphicsPipeline> PipelineCache::CreateGraphicsPipeline(
LOG_INFO(Render_Vulkan, "0x{:016x}", key.Hash());
size_t env_index{0};
std::array<Shader::IR::Program, Maxwell::MaxShaderProgram> programs;
bool uses_vertex_a{};
std::size_t start_value_processing{};
for (size_t index = 0; index < Maxwell::MaxShaderProgram; ++index) {
if (key.unique_hashes[index] == 0) {
continue;
}
uses_vertex_a |= index == 0;
Shader::Environment& env{*envs[env_index]};
++env_index;
const u32 cfg_offset{static_cast<u32>(env.StartAddress() + sizeof(Shader::ProgramHeader))};
Shader::Maxwell::Flow::CFG cfg(env, pools.flow_block, cfg_offset);
programs[index] = TranslateProgram(pools.inst, pools.block, env, cfg);
Shader::Maxwell::Flow::CFG cfg(env, pools.flow_block, cfg_offset, index == 0);
if (!uses_vertex_a || index != 1) {
programs[index] = TranslateProgram(pools.inst, pools.block, env, cfg);
continue;
}
Shader::IR::Program& program_va{programs[0]};
Shader::IR::Program program_vb{TranslateProgram(pools.inst, pools.block, env, cfg)};
programs[index] = MergeDualVertexPrograms(program_va, program_vb, env);
start_value_processing = 1;
}
std::array<const Shader::Info*, Maxwell::MaxShaderStage> infos{};
std::array<vk::ShaderModule, Maxwell::MaxShaderStage> modules;
u32 binding{0};
for (size_t index = 0; index < Maxwell::MaxShaderProgram; ++index) {
for (size_t index = start_value_processing; index < Maxwell::MaxShaderProgram; ++index) {
if (key.unique_hashes[index] == 0) {
continue;
}