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// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <atomic>
#include <fstream>
#include <functional>
#include <mutex>
#include <string>
#include <thread>
#include "common/alignment.h"
#include "common/assert.h"
#include "common/fs/fs.h"
#include "common/fs/path_util.h"
#include "common/logging/log.h"
#include "common/scope_exit.h"
#include "common/thread_worker.h"
#include "core/core.h"
#include "core/frontend/emu_window.h"
#include "shader_recompiler/backend/glasm/emit_glasm.h"
#include "shader_recompiler/backend/spirv/emit_spirv.h"
#include "shader_recompiler/frontend/ir/program.h"
#include "shader_recompiler/frontend/maxwell/control_flow.h"
#include "shader_recompiler/frontend/maxwell/program.h"
#include "shader_recompiler/profile.h"
#include "video_core/engines/kepler_compute.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/engines/shader_type.h"
#include "video_core/memory_manager.h"
#include "video_core/renderer_opengl/gl_rasterizer.h"
#include "video_core/renderer_opengl/gl_resource_manager.h"
#include "video_core/renderer_opengl/gl_shader_cache.h"
#include "video_core/renderer_opengl/gl_state_tracker.h"
#include "video_core/shader_cache.h"
#include "video_core/shader_environment.h"
#include "video_core/shader_notify.h"
namespace OpenGL {
namespace {
using Shader::Backend::GLASM::EmitGLASM;
using Shader::Backend::SPIRV::EmitSPIRV;
using Shader::Maxwell::MergeDualVertexPrograms;
using Shader::Maxwell::TranslateProgram;
using VideoCommon::ComputeEnvironment;
using VideoCommon::FileEnvironment;
using VideoCommon::GenericEnvironment;
using VideoCommon::GraphicsEnvironment;
using VideoCommon::SerializePipeline;
template <typename Container>
auto MakeSpan(Container& container) {
return std::span(container.data(), container.size());
}
void AddShader(GLenum stage, GLuint program, std::span<const u32> code) {
OGLShader shader;
shader.handle = glCreateShader(stage);
glShaderBinary(1, &shader.handle, GL_SHADER_BINARY_FORMAT_SPIR_V_ARB, code.data(),
static_cast<GLsizei>(code.size_bytes()));
glSpecializeShader(shader.handle, "main", 0, nullptr, nullptr);
glAttachShader(program, shader.handle);
if (!Settings::values.renderer_debug) {
return;
}
GLint shader_status{};
glGetShaderiv(shader.handle, GL_COMPILE_STATUS, &shader_status);
if (shader_status == GL_FALSE) {
LOG_ERROR(Render_OpenGL, "Failed to build shader");
}
GLint log_length{};
glGetShaderiv(shader.handle, GL_INFO_LOG_LENGTH, &log_length);
if (log_length == 0) {
return;
}
std::string log(log_length, 0);
glGetShaderInfoLog(shader.handle, log_length, nullptr, log.data());
if (shader_status == GL_FALSE) {
LOG_ERROR(Render_OpenGL, "{}", log);
} else {
LOG_WARNING(Render_OpenGL, "{}", log);
}
}
void LinkProgram(GLuint program) {
glLinkProgram(program);
if (!Settings::values.renderer_debug) {
return;
}
GLint link_status{};
glGetProgramiv(program, GL_LINK_STATUS, &link_status);
GLint log_length{};
glGetProgramiv(program, GL_INFO_LOG_LENGTH, &log_length);
if (log_length == 0) {
return;
}
std::string log(log_length, 0);
glGetProgramInfoLog(program, log_length, nullptr, log.data());
if (link_status == GL_FALSE) {
LOG_ERROR(Render_OpenGL, "{}", log);
} else {
LOG_WARNING(Render_OpenGL, "{}", log);
}
}
OGLAssemblyProgram CompileProgram(std::string_view code, GLenum target) {
OGLAssemblyProgram program;
glGenProgramsARB(1, &program.handle);
glNamedProgramStringEXT(program.handle, target, GL_PROGRAM_FORMAT_ASCII_ARB,
static_cast<GLsizei>(code.size()), code.data());
if (Settings::values.renderer_debug) {
const auto err = reinterpret_cast<const char*>(glGetString(GL_PROGRAM_ERROR_STRING_NV));
if (err && *err) {
if (std::strstr(err, "error")) {
LOG_CRITICAL(Render_OpenGL, "\n{}", err);
LOG_INFO(Render_OpenGL, "\n{}", code);
} else {
LOG_WARNING(Render_OpenGL, "\n{}", err);
}
}
}
return program;
}
GLenum Stage(size_t stage_index) {
switch (stage_index) {
case 0:
return GL_VERTEX_SHADER;
case 1:
return GL_TESS_CONTROL_SHADER;
case 2:
return GL_TESS_EVALUATION_SHADER;
case 3:
return GL_GEOMETRY_SHADER;
case 4:
return GL_FRAGMENT_SHADER;
}
UNREACHABLE_MSG("{}", stage_index);
return GL_NONE;
}
GLenum AssemblyStage(size_t stage_index) {
switch (stage_index) {
case 0:
return GL_VERTEX_PROGRAM_NV;
case 1:
return GL_TESS_CONTROL_PROGRAM_NV;
case 2:
return GL_TESS_EVALUATION_PROGRAM_NV;
case 3:
return GL_GEOMETRY_PROGRAM_NV;
case 4:
return GL_FRAGMENT_PROGRAM_NV;
}
UNREACHABLE_MSG("{}", stage_index);
return GL_NONE;
}
Shader::RuntimeInfo MakeRuntimeInfo(const GraphicsPipelineKey& key,
const Shader::IR::Program& program,
bool glasm_use_storage_buffers) {
Shader::RuntimeInfo info;
switch (program.stage) {
case Shader::Stage::TessellationEval:
info.tess_clockwise = key.tessellation_clockwise != 0;
info.tess_primitive = [&key] {
switch (key.tessellation_primitive) {
case Maxwell::TessellationPrimitive::Isolines:
return Shader::TessPrimitive::Isolines;
case Maxwell::TessellationPrimitive::Triangles:
return Shader::TessPrimitive::Triangles;
case Maxwell::TessellationPrimitive::Quads:
return Shader::TessPrimitive::Quads;
}
UNREACHABLE();
return Shader::TessPrimitive::Triangles;
}();
info.tess_spacing = [&] {
switch (key.tessellation_spacing) {
case Maxwell::TessellationSpacing::Equal:
return Shader::TessSpacing::Equal;
case Maxwell::TessellationSpacing::FractionalOdd:
return Shader::TessSpacing::FractionalOdd;
case Maxwell::TessellationSpacing::FractionalEven:
return Shader::TessSpacing::FractionalEven;
}
UNREACHABLE();
return Shader::TessSpacing::Equal;
}();
break;
case Shader::Stage::Fragment:
info.force_early_z = key.early_z != 0;
break;
default:
break;
}
switch (key.gs_input_topology) {
case Maxwell::PrimitiveTopology::Points:
info.input_topology = Shader::InputTopology::Points;
break;
case Maxwell::PrimitiveTopology::Lines:
case Maxwell::PrimitiveTopology::LineLoop:
case Maxwell::PrimitiveTopology::LineStrip:
info.input_topology = Shader::InputTopology::Lines;
break;
case Maxwell::PrimitiveTopology::Triangles:
case Maxwell::PrimitiveTopology::TriangleStrip:
case Maxwell::PrimitiveTopology::TriangleFan:
case Maxwell::PrimitiveTopology::Quads:
case Maxwell::PrimitiveTopology::QuadStrip:
case Maxwell::PrimitiveTopology::Polygon:
case Maxwell::PrimitiveTopology::Patches:
info.input_topology = Shader::InputTopology::Triangles;
break;
case Maxwell::PrimitiveTopology::LinesAdjacency:
case Maxwell::PrimitiveTopology::LineStripAdjacency:
info.input_topology = Shader::InputTopology::LinesAdjacency;
break;
case Maxwell::PrimitiveTopology::TrianglesAdjacency:
case Maxwell::PrimitiveTopology::TriangleStripAdjacency:
info.input_topology = Shader::InputTopology::TrianglesAdjacency;
break;
}
info.glasm_use_storage_buffers = glasm_use_storage_buffers;
return info;
}
void SetXfbState(VideoCommon::TransformFeedbackState& state, const Maxwell& regs) {
std::ranges::transform(regs.tfb_layouts, state.layouts.begin(), [](const auto& layout) {
return VideoCommon::TransformFeedbackState::Layout{
.stream = layout.stream,
.varying_count = layout.varying_count,
.stride = layout.stride,
};
});
state.varyings = regs.tfb_varying_locs;
}
} // Anonymous namespace
struct ShaderCache::Context {
explicit Context(Core::Frontend::EmuWindow& emu_window)
: gl_context{emu_window.CreateSharedContext()}, scoped{*gl_context} {}
std::unique_ptr<Core::Frontend::GraphicsContext> gl_context;
Core::Frontend::GraphicsContext::Scoped scoped;
ShaderPools pools;
};
ShaderCache::ShaderCache(RasterizerOpenGL& rasterizer_, Core::Frontend::EmuWindow& emu_window_,
Tegra::Engines::Maxwell3D& maxwell3d_,
Tegra::Engines::KeplerCompute& kepler_compute_,
Tegra::MemoryManager& gpu_memory_, const Device& device_,
TextureCache& texture_cache_, BufferCache& buffer_cache_,
ProgramManager& program_manager_, StateTracker& state_tracker_)
: VideoCommon::ShaderCache{rasterizer_, gpu_memory_, maxwell3d_, kepler_compute_},
emu_window{emu_window_}, device{device_}, texture_cache{texture_cache_},
buffer_cache{buffer_cache_}, program_manager{program_manager_}, state_tracker{state_tracker_},
use_asynchronous_shaders{device.UseAsynchronousShaders()},
profile{
.supported_spirv = 0x00010000,
.unified_descriptor_binding = false,
.support_descriptor_aliasing = false,
.support_int8 = false,
.support_int16 = false,
.support_vertex_instance_id = true,
.support_float_controls = false,
.support_separate_denorm_behavior = false,
.support_separate_rounding_mode = false,
.support_fp16_denorm_preserve = false,
.support_fp32_denorm_preserve = false,
.support_fp16_denorm_flush = false,
.support_fp32_denorm_flush = false,
.support_fp16_signed_zero_nan_preserve = false,
.support_fp32_signed_zero_nan_preserve = false,
.support_fp64_signed_zero_nan_preserve = false,
.support_explicit_workgroup_layout = false,
.support_vote = true,
.support_viewport_index_layer_non_geometry =
device.HasNvViewportArray2() || device.HasVertexViewportLayer(),
.support_viewport_mask = device.HasNvViewportArray2(),
.support_typeless_image_loads = device.HasImageLoadFormatted(),
.support_demote_to_helper_invocation = false,
.support_int64_atomics = false,
.support_derivative_control = device.HasDerivativeControl(),
.warp_size_potentially_larger_than_guest = true,
.lower_left_origin_mode = true,
.need_declared_frag_colors = true,
.has_broken_spirv_clamp = true,
.has_broken_unsigned_image_offsets = true,
.has_broken_signed_operations = true,
.ignore_nan_fp_comparisons = true,
} {
if (use_asynchronous_shaders) {
workers = CreateWorkers();
}
}
ShaderCache::~ShaderCache() = default;
void ShaderCache::LoadDiskResources(u64 title_id, std::stop_token stop_loading,
const VideoCore::DiskResourceLoadCallback& callback) {
if (title_id == 0) {
return;
}
auto shader_dir{Common::FS::GetYuzuPath(Common::FS::YuzuPath::ShaderDir)};
auto base_dir{shader_dir / "new_opengl"};
auto transferable_dir{base_dir / "transferable"};
auto precompiled_dir{base_dir / "precompiled"};
if (!Common::FS::CreateDir(shader_dir) || !Common::FS::CreateDir(base_dir) ||
!Common::FS::CreateDir(transferable_dir) || !Common::FS::CreateDir(precompiled_dir)) {
LOG_ERROR(Common_Filesystem, "Failed to create pipeline cache directories");
return;
}
shader_cache_filename = transferable_dir / fmt::format("{:016x}.bin", title_id);
if (!workers) {
workers = CreateWorkers();
}
struct {
std::mutex mutex;
size_t total{};
size_t built{};
bool has_loaded{};
} state;
const auto load_compute{[&](std::ifstream& file, FileEnvironment env) {
ComputePipelineKey key;
file.read(reinterpret_cast<char*>(&key), sizeof(key));
workers->QueueWork(
[this, key, env = std::move(env), &state, &callback](Context* ctx) mutable {
ctx->pools.ReleaseContents();
auto pipeline{CreateComputePipeline(ctx->pools, key, env)};
std::lock_guard lock{state.mutex};
if (pipeline) {
compute_cache.emplace(key, std::move(pipeline));
}
++state.built;
if (state.has_loaded) {
callback(VideoCore::LoadCallbackStage::Build, state.built, state.total);
}
});
++state.total;
}};
const auto load_graphics{[&](std::ifstream& file, std::vector<FileEnvironment> envs) {
GraphicsPipelineKey key;
file.read(reinterpret_cast<char*>(&key), sizeof(key));
workers->QueueWork(
[this, key, envs = std::move(envs), &state, &callback](Context* ctx) mutable {
boost::container::static_vector<Shader::Environment*, 5> env_ptrs;
for (auto& env : envs) {
env_ptrs.push_back(&env);
}
ctx->pools.ReleaseContents();
auto pipeline{CreateGraphicsPipeline(ctx->pools, key, MakeSpan(env_ptrs))};
std::lock_guard lock{state.mutex};
if (pipeline) {
graphics_cache.emplace(key, std::move(pipeline));
}
++state.built;
if (state.has_loaded) {
callback(VideoCore::LoadCallbackStage::Build, state.built, state.total);
}
});
++state.total;
}};
VideoCommon::LoadPipelines(stop_loading, shader_cache_filename, load_compute, load_graphics);
std::unique_lock lock{state.mutex};
callback(VideoCore::LoadCallbackStage::Build, 0, state.total);
state.has_loaded = true;
lock.unlock();
workers->WaitForRequests();
if (!use_asynchronous_shaders) {
workers.reset();
}
}
GraphicsPipeline* ShaderCache::CurrentGraphicsPipeline() {
if (!RefreshStages(graphics_key.unique_hashes)) {
return nullptr;
}
const auto& regs{maxwell3d.regs};
graphics_key.raw = 0;
graphics_key.early_z.Assign(regs.force_early_fragment_tests != 0 ? 1 : 0);
graphics_key.gs_input_topology.Assign(graphics_key.unique_hashes[4] != 0
? regs.draw.topology.Value()
: Maxwell::PrimitiveTopology{});
graphics_key.tessellation_primitive.Assign(regs.tess_mode.prim.Value());
graphics_key.tessellation_spacing.Assign(regs.tess_mode.spacing.Value());
graphics_key.tessellation_clockwise.Assign(regs.tess_mode.cw.Value());
graphics_key.xfb_enabled.Assign(regs.tfb_enabled != 0 ? 1 : 0);
if (graphics_key.xfb_enabled) {
SetXfbState(graphics_key.xfb_state, regs);
}
const auto [pair, is_new]{graphics_cache.try_emplace(graphics_key)};
auto& program{pair->second};
if (is_new) {
program = CreateGraphicsPipeline();
}
return program.get();
}
ComputePipeline* ShaderCache::CurrentComputePipeline() {
const VideoCommon::ShaderInfo* const shader{ComputeShader()};
if (!shader) {
return nullptr;
}
const auto& qmd{kepler_compute.launch_description};
const ComputePipelineKey key{
.unique_hash = shader->unique_hash,
.shared_memory_size = qmd.shared_alloc,
.workgroup_size{qmd.block_dim_x, qmd.block_dim_y, qmd.block_dim_z},
};
const auto [pair, is_new]{compute_cache.try_emplace(key)};
auto& pipeline{pair->second};
if (!is_new) {
return pipeline.get();
}
pipeline = CreateComputePipeline(key, shader);
return pipeline.get();
}
std::unique_ptr<GraphicsPipeline> ShaderCache::CreateGraphicsPipeline() {
GraphicsEnvironments environments;
GetGraphicsEnvironments(environments, graphics_key.unique_hashes);
main_pools.ReleaseContents();
auto pipeline{CreateGraphicsPipeline(main_pools, graphics_key, environments.Span())};
if (!pipeline || shader_cache_filename.empty()) {
return pipeline;
}
boost::container::static_vector<const GenericEnvironment*, Maxwell::MaxShaderProgram> env_ptrs;
for (size_t index = 0; index < Maxwell::MaxShaderProgram; ++index) {
if (graphics_key.unique_hashes[index] != 0) {
env_ptrs.push_back(&environments.envs[index]);
}
}
SerializePipeline(graphics_key, env_ptrs, shader_cache_filename);
return pipeline;
}
std::unique_ptr<GraphicsPipeline> ShaderCache::CreateGraphicsPipeline(
ShaderPools& pools, const GraphicsPipelineKey& key,
std::span<Shader::Environment* const> envs) try {
LOG_INFO(Render_OpenGL, "0x{:016x}", key.Hash());
size_t env_index{};
u32 total_storage_buffers{};
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};
for (size_t index = 0; index < Maxwell::MaxShaderProgram; ++index) {
if (key.unique_hashes[index] == 0) {
continue;
}
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, index == 0);
if (!uses_vertex_a || index != 1) {
// Normal path
programs[index] = TranslateProgram(pools.inst, pools.block, env, cfg);
for (const auto& desc : programs[index].info.storage_buffers_descriptors) {
total_storage_buffers += desc.count;
}
} else {
// VertexB path when VertexA is present.
Shader::IR::Program& program_va{programs[0]};
Shader::IR::Program program_vb{TranslateProgram(pools.inst, pools.block, env, cfg)};
for (const auto& desc : program_vb.info.storage_buffers_descriptors) {
total_storage_buffers += desc.count;
}
programs[index] = MergeDualVertexPrograms(program_va, program_vb, env);
}
}
const u32 glasm_storage_buffer_limit{device.GetMaxGLASMStorageBufferBlocks()};
const bool glasm_use_storage_buffers{total_storage_buffers <= glasm_storage_buffer_limit};
std::array<const Shader::Info*, Maxwell::MaxShaderStage> infos{};
OGLProgram source_program;
std::array<OGLAssemblyProgram, 5> assembly_programs;
Shader::Backend::Bindings binding;
if (!device.UseAssemblyShaders()) {
source_program.handle = glCreateProgram();
}
for (size_t index = uses_vertex_a && uses_vertex_b ? 1 : 0; index < Maxwell::MaxShaderProgram;
++index) {
if (key.unique_hashes[index] == 0) {
continue;
}
UNIMPLEMENTED_IF(index == 0);
Shader::IR::Program& program{programs[index]};
const size_t stage_index{index - 1};
infos[stage_index] = &program.info;
const auto runtime_info{MakeRuntimeInfo(key, program, glasm_use_storage_buffers)};
if (device.UseAssemblyShaders()) {
const std::string code{EmitGLASM(profile, runtime_info, program, binding)};
assembly_programs[stage_index] = CompileProgram(code, AssemblyStage(stage_index));
} else {
const std::vector<u32> code{EmitSPIRV(profile, runtime_info, program, binding)};
AddShader(Stage(stage_index), source_program.handle, code);
}
}
if (!device.UseAssemblyShaders()) {
LinkProgram(source_program.handle);
}
return std::make_unique<GraphicsPipeline>(
device, texture_cache, buffer_cache, gpu_memory, maxwell3d, program_manager, state_tracker,
std::move(source_program), std::move(assembly_programs), infos,
key.xfb_enabled != 0 ? &key.xfb_state : nullptr);
} catch (Shader::Exception& exception) {
LOG_ERROR(Render_OpenGL, "{}", exception.what());
return nullptr;
}
std::unique_ptr<ComputePipeline> ShaderCache::CreateComputePipeline(
const ComputePipelineKey& key, const VideoCommon::ShaderInfo* shader) {
const GPUVAddr program_base{kepler_compute.regs.code_loc.Address()};
const auto& qmd{kepler_compute.launch_description};
ComputeEnvironment env{kepler_compute, gpu_memory, program_base, qmd.program_start};
env.SetCachedSize(shader->size_bytes);
main_pools.ReleaseContents();
auto pipeline{CreateComputePipeline(main_pools, key, env)};
if (!pipeline || shader_cache_filename.empty()) {
return pipeline;
}
SerializePipeline(key, std::array<const GenericEnvironment*, 1>{&env}, shader_cache_filename);
return pipeline;
}
std::unique_ptr<ComputePipeline> ShaderCache::CreateComputePipeline(ShaderPools& pools,
const ComputePipelineKey& key,
Shader::Environment& env) try {
LOG_INFO(Render_OpenGL, "0x{:016x}", key.Hash());
Shader::Maxwell::Flow::CFG cfg{env, pools.flow_block, env.StartAddress()};
Shader::IR::Program program{TranslateProgram(pools.inst, pools.block, env, cfg)};
u32 num_storage_buffers{};
for (const auto& desc : program.info.storage_buffers_descriptors) {
num_storage_buffers += desc.count;
}
Shader::RuntimeInfo info;
info.glasm_use_storage_buffers = num_storage_buffers <= device.GetMaxGLASMStorageBufferBlocks();
OGLAssemblyProgram asm_program;
OGLProgram source_program;
if (device.UseAssemblyShaders()) {
const std::string code{EmitGLASM(profile, info, program)};
asm_program = CompileProgram(code, GL_COMPUTE_PROGRAM_NV);
} else {
const std::vector<u32> code{EmitSPIRV(profile, program)};
source_program.handle = glCreateProgram();
AddShader(GL_COMPUTE_SHADER, source_program.handle, code);
LinkProgram(source_program.handle);
}
return std::make_unique<ComputePipeline>(device, texture_cache, buffer_cache, gpu_memory,
kepler_compute, program_manager, program.info,
std::move(source_program), std::move(asm_program));
} catch (Shader::Exception& exception) {
LOG_ERROR(Render_OpenGL, "{}", exception.what());
return nullptr;
}
std::unique_ptr<Common::StatefulThreadWorker<ShaderCache::Context>> ShaderCache::CreateWorkers()
const {
return std::make_unique<Common::StatefulThreadWorker<Context>>(
std::max(std::thread::hardware_concurrency(), 2U) - 1, "yuzu:ShaderBuilder",
[this] { return Context{emu_window}; });
}
} // namespace OpenGL
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