octo/yuzu-android
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

shader_recompiler: add gl_Layer translation GS for older hardware

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files

1
src/shader_recompiler/CMakeLists.txt
View File

@@ -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
View File

@@ -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
View File

@@ -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

3
src/shader_recompiler/host_translate_info.h
View File

@@ -13,7 +13,8 @@ struct HostTranslateInfo {
bool support_float16{}; ///< True when the device supports 16-bit floats
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_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
View File

@@ -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
View File

@@ -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
View File

@@ -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;