// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <mutex>
#include <optional>
#include <string>
#include <thread>
#include <unordered_set>
#include <boost/functional/hash.hpp>
#include "common/alignment.h"
#include "common/assert.h"
#include "common/logging/log.h"
#include "common/scope_exit.h"
#include "core/core.h"
#include "core/frontend/emu_window.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_shader_cache.h"
#include "video_core/renderer_opengl/gl_shader_decompiler.h"
#include "video_core/renderer_opengl/gl_shader_disk_cache.h"
#include "video_core/renderer_opengl/utils.h"
#include "video_core/shader/shader_ir.h"
namespace OpenGL {
using Tegra::Engines::ShaderType;
using VideoCommon::Shader::ConstBufferLocker;
using VideoCommon::Shader::ProgramCode;
using VideoCommon::Shader::ShaderIR;
namespace {
// One UBO is always reserved for emulation values on staged shaders
constexpr u32 STAGE_RESERVED_UBOS = 1;
constexpr u32 STAGE_MAIN_OFFSET = 10;
constexpr u32 KERNEL_MAIN_OFFSET = 0;
constexpr VideoCommon::Shader::CompilerSettings COMPILER_SETTINGS{};
/// Gets the address for the specified shader stage program
GPUVAddr GetShaderAddress(Core::System& system, Maxwell::ShaderProgram program) {
const auto& gpu{system.GPU().Maxwell3D()};
const auto& shader_config{gpu.regs.shader_config[static_cast<std::size_t>(program)]};
return gpu.regs.code_address.CodeAddress() + shader_config.offset;
}
/// Gets if the current instruction offset is a scheduler instruction
constexpr bool IsSchedInstruction(std::size_t offset, std::size_t main_offset) {
// Sched instructions appear once every 4 instructions.
constexpr std::size_t SchedPeriod = 4;
const std::size_t absolute_offset = offset - main_offset;
return (absolute_offset % SchedPeriod) == 0;
}
/// Calculates the size of a program stream
std::size_t CalculateProgramSize(const GLShader::ProgramCode& program) {
constexpr std::size_t start_offset = 10;
// This is the encoded version of BRA that jumps to itself. All Nvidia
// shaders end with one.
constexpr u64 self_jumping_branch = 0xE2400FFFFF07000FULL;
constexpr u64 mask = 0xFFFFFFFFFF7FFFFFULL;
std::size_t offset = start_offset;
while (offset < program.size()) {
const u64 instruction = program[offset];
if (!IsSchedInstruction(offset, start_offset)) {
if ((instruction & mask) == self_jumping_branch) {
// End on Maxwell's "nop" instruction
break;
}
if (instruction == 0) {
break;
}
}
offset++;
}
// The last instruction is included in the program size
return std::min(offset + 1, program.size());
}
/// Gets the shader program code from memory for the specified address
ProgramCode GetShaderCode(Tegra::MemoryManager& memory_manager, const GPUVAddr gpu_addr,
const u8* host_ptr) {
ProgramCode code(VideoCommon::Shader::MAX_PROGRAM_LENGTH);
ASSERT_OR_EXECUTE(host_ptr != nullptr, {
std::fill(code.begin(), code.end(), 0);
return code;
});
memory_manager.ReadBlockUnsafe(gpu_addr, code.data(), code.size() * sizeof(u64));
code.resize(CalculateProgramSize(code));
return code;
}
/// Gets the shader type from a Maxwell program type
constexpr GLenum GetGLShaderType(ShaderType shader_type) {
switch (shader_type) {
case ShaderType::Vertex:
return GL_VERTEX_SHADER;
case ShaderType::Geometry:
return GL_GEOMETRY_SHADER;
case ShaderType::Fragment:
return GL_FRAGMENT_SHADER;
case ShaderType::Compute:
return GL_COMPUTE_SHADER;
default:
return GL_NONE;
}
}
/// Describes primitive behavior on geometry shaders
constexpr std::tuple<const char*, const char*, u32> GetPrimitiveDescription(GLenum primitive_mode) {
switch (primitive_mode) {
case GL_POINTS:
return {"points", "Points", 1};
case GL_LINES:
case GL_LINE_STRIP:
return {"lines", "Lines", 2};
case GL_LINES_ADJACENCY:
case GL_LINE_STRIP_ADJACENCY:
return {"lines_adjacency", "LinesAdj", 4};
case GL_TRIANGLES:
case GL_TRIANGLE_STRIP:
case GL_TRIANGLE_FAN:
return {"triangles", "Triangles", 3};
case GL_TRIANGLES_ADJACENCY:
case GL_TRIANGLE_STRIP_ADJACENCY:
return {"triangles_adjacency", "TrianglesAdj", 6};
default:
return {"points", "Invalid", 1};
}
}
/// Hashes one (or two) program streams
u64 GetUniqueIdentifier(ShaderType shader_type, bool is_a, const ProgramCode& code,
const ProgramCode& code_b) {
u64 unique_identifier = boost::hash_value(code);
if (is_a) {
// VertexA programs include two programs
boost::hash_combine(unique_identifier, boost::hash_value(code_b));
}
return unique_identifier;
}
/// Creates an unspecialized program from code streams
std::string GenerateGLSL(const Device& device, ShaderType shader_type, const ShaderIR& ir,
const std::optional<ShaderIR>& ir_b) {
switch (shader_type) {
case ShaderType::Vertex:
return GLShader::GenerateVertexShader(device, ir, ir_b ? &*ir_b : nullptr);
case ShaderType::Geometry:
return GLShader::GenerateGeometryShader(device, ir);
case ShaderType::Fragment:
return GLShader::GenerateFragmentShader(device, ir);
case ShaderType::Compute:
return GLShader::GenerateComputeShader(device, ir);
default:
UNIMPLEMENTED_MSG("Unimplemented shader_type={}", static_cast<u32>(shader_type));
return {};
}
}
constexpr const char* GetShaderTypeName(ShaderType shader_type) {
switch (shader_type) {
case ShaderType::Vertex:
return "VS";
case ShaderType::TesselationControl:
return "HS";
case ShaderType::TesselationEval:
return "DS";
case ShaderType::Geometry:
return "GS";
case ShaderType::Fragment:
return "FS";
case ShaderType::Compute:
return "CS";
}
return "UNK";
}
constexpr ShaderType GetShaderType(Maxwell::ShaderProgram program_type) {
switch (program_type) {
case Maxwell::ShaderProgram::VertexA:
case Maxwell::ShaderProgram::VertexB:
return ShaderType::Vertex;
case Maxwell::ShaderProgram::TesselationControl:
return ShaderType::TesselationControl;
case Maxwell::ShaderProgram::TesselationEval:
return ShaderType::TesselationEval;
case Maxwell::ShaderProgram::Geometry:
return ShaderType::Geometry;
case Maxwell::ShaderProgram::Fragment:
return ShaderType::Fragment;
}
return {};
}
std::string GetShaderId(u64 unique_identifier, ShaderType shader_type) {
return fmt::format("{}{:016X}", GetShaderTypeName(shader_type), unique_identifier);
}
Tegra::Engines::ConstBufferEngineInterface& GetConstBufferEngineInterface(Core::System& system,
ShaderType shader_type) {
if (shader_type == ShaderType::Compute) {
return system.GPU().KeplerCompute();
} else {
return system.GPU().Maxwell3D();
}
}
std::unique_ptr<ConstBufferLocker> MakeLocker(Core::System& system, ShaderType shader_type) {
return std::make_unique<ConstBufferLocker>(shader_type,
GetConstBufferEngineInterface(system, shader_type));
}
void FillLocker(ConstBufferLocker& locker, const ShaderDiskCacheUsage& usage) {
for (const auto& key : usage.keys) {
const auto [buffer, offset] = key.first;
locker.InsertKey(buffer, offset, key.second);
}
for (const auto& [offset, sampler] : usage.bound_samplers) {
locker.InsertBoundSampler(offset, sampler);
}
for (const auto& [key, sampler] : usage.bindless_samplers) {
const auto [buffer, offset] = key;
locker.InsertBindlessSampler(buffer, offset, sampler);
}
}
CachedProgram BuildShader(const Device& device, u64 unique_identifier, ShaderType shader_type,
const ProgramCode& code, const ProgramCode& code_b,
ConstBufferLocker& locker, const ProgramVariant& variant,
bool hint_retrievable = false) {
LOG_INFO(Render_OpenGL, "called. {}", GetShaderId(unique_identifier, shader_type));
const bool is_compute = shader_type == ShaderType::Compute;
const u32 main_offset = is_compute ? KERNEL_MAIN_OFFSET : STAGE_MAIN_OFFSET;
const ShaderIR ir(code, main_offset, COMPILER_SETTINGS, locker);
std::optional<ShaderIR> ir_b;
if (!code_b.empty()) {
ir_b.emplace(code_b, main_offset, COMPILER_SETTINGS, locker);
}
const auto entries = GLShader::GetEntries(ir);
std::string source = fmt::format(R"(// {}
#version 430 core
#extension GL_ARB_separate_shader_objects : enable
)",
GetShaderId(unique_identifier, shader_type));
if (device.HasShaderBallot()) {
source += "#extension GL_ARB_shader_ballot : require\n";
}
if (device.HasVertexViewportLayer()) {
source += "#extension GL_ARB_shader_viewport_layer_array : require\n";
}
if (device.HasImageLoadFormatted()) {
source += "#extension GL_EXT_shader_image_load_formatted : require\n";
}
if (device.HasWarpIntrinsics()) {
source += "#extension GL_NV_gpu_shader5 : require\n"
"#extension GL_NV_shader_thread_group : require\n"
"#extension GL_NV_shader_thread_shuffle : require\n";
}
source += '\n';
if (shader_type == ShaderType::Geometry) {
const auto [glsl_topology, debug_name, max_vertices] =
GetPrimitiveDescription(variant.primitive_mode);
source += fmt::format("layout ({}) in;\n\n", glsl_topology);
source += fmt::format("#define MAX_VERTEX_INPUT {}\n", max_vertices);
}
if (shader_type == ShaderType::Compute) {
source +=
fmt::format("layout (local_size_x = {}, local_size_y = {}, local_size_z = {}) in;\n",
variant.block_x, variant.block_y, variant.block_z);
if (variant.shared_memory_size > 0) {
source += fmt::format("shared uint smem[{}];",
Common::AlignUp(variant.shared_memory_size, 4) / 4);
}
if (variant.local_memory_size > 0) {
source += fmt::format("#define LOCAL_MEMORY_SIZE {}",
Common::AlignUp(variant.local_memory_size, 4) / 4);
}
}
source += '\n';
source += GenerateGLSL(device, shader_type, ir, ir_b);
OGLShader shader;
shader.Create(source.c_str(), GetGLShaderType(shader_type));
auto program = std::make_shared<OGLProgram>();
program->Create(true, hint_retrievable, shader.handle);
return program;
}
std::unordered_set<GLenum> GetSupportedFormats() {
GLint num_formats{};
glGetIntegerv(GL_NUM_PROGRAM_BINARY_FORMATS, &num_formats);
std::vector<GLint> formats(num_formats);
glGetIntegerv(GL_PROGRAM_BINARY_FORMATS, formats.data());
std::unordered_set<GLenum> supported_formats;
for (const GLint format : formats) {
supported_formats.insert(static_cast<GLenum>(format));
}
return supported_formats;
}
} // Anonymous namespace
CachedShader::CachedShader(const ShaderParameters& params, ShaderType shader_type,
GLShader::ShaderEntries entries, ProgramCode code, ProgramCode code_b)
: RasterizerCacheObject{params.host_ptr}, system{params.system}, disk_cache{params.disk_cache},
device{params.device}, cpu_addr{params.cpu_addr}, unique_identifier{params.unique_identifier},
shader_type{shader_type}, entries{entries}, code{std::move(code)}, code_b{std::move(code_b)} {
if (!params.precompiled_variants) {
return;
}
for (const auto& pair : *params.precompiled_variants) {
auto locker = MakeLocker(system, shader_type);
const auto& usage = pair->first;
FillLocker(*locker, usage);
std::unique_ptr<LockerVariant>* locker_variant = nullptr;
const auto it =
std::find_if(locker_variants.begin(), locker_variants.end(), [&](const auto& variant) {
return variant->locker->HasEqualKeys(*locker);
});
if (it == locker_variants.end()) {
locker_variant = &locker_variants.emplace_back();
*locker_variant = std::make_unique<LockerVariant>();
locker_variant->get()->locker = std::move(locker);
} else {
locker_variant = &*it;
}
locker_variant->get()->programs.emplace(usage.variant, pair->second);
}
}
Shader CachedShader::CreateStageFromMemory(const ShaderParameters& params,
Maxwell::ShaderProgram program_type, ProgramCode code,
ProgramCode code_b) {
const auto shader_type = GetShaderType(program_type);
params.disk_cache.SaveRaw(
ShaderDiskCacheRaw(params.unique_identifier, shader_type, code, code_b));
ConstBufferLocker locker(shader_type, params.system.GPU().Maxwell3D());
const ShaderIR ir(code, STAGE_MAIN_OFFSET, COMPILER_SETTINGS, locker);
// TODO(Rodrigo): Handle VertexA shaders
// std::optional<ShaderIR> ir_b;
// if (!code_b.empty()) {
// ir_b.emplace(code_b, STAGE_MAIN_OFFSET);
// }
return std::shared_ptr<CachedShader>(new CachedShader(
params, shader_type, GLShader::GetEntries(ir), std::move(code), std::move(code_b)));
}
Shader CachedShader::CreateKernelFromMemory(const ShaderParameters& params, ProgramCode code) {
params.disk_cache.SaveRaw(
ShaderDiskCacheRaw(params.unique_identifier, ShaderType::Compute, code));
ConstBufferLocker locker(Tegra::Engines::ShaderType::Compute,
params.system.GPU().KeplerCompute());
const ShaderIR ir(code, KERNEL_MAIN_OFFSET, COMPILER_SETTINGS, locker);
return std::shared_ptr<CachedShader>(new CachedShader(
params, ShaderType::Compute, GLShader::GetEntries(ir), std::move(code), {}));
}
Shader CachedShader::CreateFromCache(const ShaderParameters& params,
const UnspecializedShader& unspecialized) {
return std::shared_ptr<CachedShader>(new CachedShader(params, unspecialized.type,
unspecialized.entries, unspecialized.code,
unspecialized.code_b));
}
GLuint CachedShader::GetHandle(const ProgramVariant& variant) {
EnsureValidLockerVariant();
const auto [entry, is_cache_miss] = curr_locker_variant->programs.try_emplace(variant);
auto& program = entry->second;
if (!is_cache_miss) {
return program->handle;
}
program = BuildShader(device, unique_identifier, shader_type, code, code_b,
*curr_locker_variant->locker, variant);
disk_cache.SaveUsage(GetUsage(variant, *curr_locker_variant->locker));
LabelGLObject(GL_PROGRAM, program->handle, cpu_addr);
return program->handle;
}
bool CachedShader::EnsureValidLockerVariant() {
const auto previous_variant = curr_locker_variant;
if (curr_locker_variant && !curr_locker_variant->locker->IsConsistent()) {
curr_locker_variant = nullptr;
}
if (!curr_locker_variant) {
for (auto& variant : locker_variants) {
if (variant->locker->IsConsistent()) {
curr_locker_variant = variant.get();
}
}
}
if (!curr_locker_variant) {
auto& new_variant = locker_variants.emplace_back();
new_variant = std::make_unique<LockerVariant>();
new_variant->locker = MakeLocker(system, shader_type);
curr_locker_variant = new_variant.get();
}
return previous_variant == curr_locker_variant;
}
ShaderDiskCacheUsage CachedShader::GetUsage(const ProgramVariant& variant,
const ConstBufferLocker& locker) const {
return ShaderDiskCacheUsage{unique_identifier, variant, locker.GetKeys(),
locker.GetBoundSamplers(), locker.GetBindlessSamplers()};
}
ShaderCacheOpenGL::ShaderCacheOpenGL(RasterizerOpenGL& rasterizer, Core::System& system,
Core::Frontend::EmuWindow& emu_window, const Device& device)
: RasterizerCache{rasterizer}, system{system}, emu_window{emu_window}, device{device},
disk_cache{system} {}
void ShaderCacheOpenGL::LoadDiskCache(const std::atomic_bool& stop_loading,
const VideoCore::DiskResourceLoadCallback& callback) {
const auto transferable = disk_cache.LoadTransferable();
if (!transferable) {
return;
}
const auto [raws, shader_usages] = *transferable;
if (!GenerateUnspecializedShaders(stop_loading, callback, raws) || stop_loading) {
return;
}
const auto dumps = disk_cache.LoadPrecompiled();
const auto supported_formats = GetSupportedFormats();
// Track if precompiled cache was altered during loading to know if we have to
// serialize the virtual precompiled cache file back to the hard drive
bool precompiled_cache_altered = false;
// Inform the frontend about shader build initialization
if (callback) {
callback(VideoCore::LoadCallbackStage::Build, 0, shader_usages.size());
}
std::mutex mutex;
std::size_t built_shaders = 0; // It doesn't have be atomic since it's used behind a mutex
std::atomic_bool compilation_failed = false;
const auto Worker = [&](Core::Frontend::GraphicsContext* context, std::size_t begin,
std::size_t end, const std::vector<ShaderDiskCacheUsage>& shader_usages,
const ShaderDumpsMap& dumps) {
context->MakeCurrent();
SCOPE_EXIT({ return context->DoneCurrent(); });
for (std::size_t i = begin; i < end; ++i) {
if (stop_loading || compilation_failed) {
return;
}
const auto& usage{shader_usages[i]};
const auto& unspecialized{unspecialized_shaders.at(usage.unique_identifier)};
const auto dump{dumps.find(usage)};
CachedProgram shader;
if (dump != dumps.end()) {
// If the shader is dumped, attempt to load it with
shader = GeneratePrecompiledProgram(dump->second, supported_formats);
if (!shader) {
compilation_failed = true;
return;
}
}
if (!shader) {
auto locker{MakeLocker(system, unspecialized.type)};
FillLocker(*locker, usage);
shader = BuildShader(device, usage.unique_identifier, unspecialized.type,
unspecialized.code, unspecialized.code_b, *locker,
usage.variant, true);
}
std::scoped_lock lock{mutex};
if (callback) {
callback(VideoCore::LoadCallbackStage::Build, ++built_shaders,
shader_usages.size());
}
precompiled_programs.emplace(usage, std::move(shader));
// TODO(Rodrigo): Is there a better way to do this?
precompiled_variants[usage.unique_identifier].push_back(
precompiled_programs.find(usage));
}
};
const auto num_workers{static_cast<std::size_t>(std::thread::hardware_concurrency() + 1ULL)};
const std::size_t bucket_size{shader_usages.size() / num_workers};
std::vector<std::unique_ptr<Core::Frontend::GraphicsContext>> contexts(num_workers);
std::vector<std::thread> threads(num_workers);
for (std::size_t i = 0; i < num_workers; ++i) {
const bool is_last_worker = i + 1 == num_workers;
const std::size_t start{bucket_size * i};
const std::size_t end{is_last_worker ? shader_usages.size() : start + bucket_size};
// On some platforms the shared context has to be created from the GUI thread
contexts[i] = emu_window.CreateSharedContext();
threads[i] = std::thread(Worker, contexts[i].get(), start, end, shader_usages, dumps);
}
for (auto& thread : threads) {
thread.join();
}
if (compilation_failed) {
// Invalidate the precompiled cache if a shader dumped shader was rejected
disk_cache.InvalidatePrecompiled();
precompiled_cache_altered = true;
return;
}
if (stop_loading) {
return;
}
// TODO(Rodrigo): Do state tracking for transferable shaders and do a dummy draw
// before precompiling them
for (std::size_t i = 0; i < shader_usages.size(); ++i) {
const auto& usage{shader_usages[i]};
if (dumps.find(usage) == dumps.end()) {
const auto& program{precompiled_programs.at(usage)};
disk_cache.SaveDump(usage, program->handle);
precompiled_cache_altered = true;
}
}
if (precompiled_cache_altered) {
disk_cache.SaveVirtualPrecompiledFile();
}
}
const PrecompiledVariants* ShaderCacheOpenGL::GetPrecompiledVariants(u64 unique_identifier) const {
const auto it = precompiled_variants.find(unique_identifier);
return it == precompiled_variants.end() ? nullptr : &it->second;
}
CachedProgram ShaderCacheOpenGL::GeneratePrecompiledProgram(
const ShaderDiskCacheDump& dump, const std::unordered_set<GLenum>& supported_formats) {
if (supported_formats.find(dump.binary_format) == supported_formats.end()) {
LOG_INFO(Render_OpenGL, "Precompiled cache entry with unsupported format - removing");
return {};
}
CachedProgram shader = std::make_shared<OGLProgram>();
shader->handle = glCreateProgram();
glProgramParameteri(shader->handle, GL_PROGRAM_SEPARABLE, GL_TRUE);
glProgramBinary(shader->handle, dump.binary_format, dump.binary.data(),
static_cast<GLsizei>(dump.binary.size()));
GLint link_status{};
glGetProgramiv(shader->handle, GL_LINK_STATUS, &link_status);
if (link_status == GL_FALSE) {
LOG_INFO(Render_OpenGL, "Precompiled cache rejected by the driver - removing");
return {};
}
return shader;
}
bool ShaderCacheOpenGL::GenerateUnspecializedShaders(
const std::atomic_bool& stop_loading, const VideoCore::DiskResourceLoadCallback& callback,
const std::vector<ShaderDiskCacheRaw>& raws) {
if (callback) {
callback(VideoCore::LoadCallbackStage::Decompile, 0, raws.size());
}
for (std::size_t i = 0; i < raws.size(); ++i) {
if (stop_loading) {
return false;
}
const auto& raw{raws[i]};
const u64 unique_identifier{raw.GetUniqueIdentifier()};
const u64 calculated_hash{
GetUniqueIdentifier(raw.GetType(), raw.HasProgramA(), raw.GetCode(), raw.GetCodeB())};
if (unique_identifier != calculated_hash) {
LOG_ERROR(Render_OpenGL,
"Invalid hash in entry={:016x} (obtained hash={:016x}) - "
"removing shader cache",
raw.GetUniqueIdentifier(), calculated_hash);
disk_cache.InvalidateTransferable();
return false;
}
const u32 main_offset =
raw.GetType() == ShaderType::Compute ? KERNEL_MAIN_OFFSET : STAGE_MAIN_OFFSET;
ConstBufferLocker locker(raw.GetType());
const ShaderIR ir(raw.GetCode(), main_offset, COMPILER_SETTINGS, locker);
// TODO(Rodrigo): Handle VertexA shaders
// std::optional<ShaderIR> ir_b;
// if (raw.HasProgramA()) {
// ir_b.emplace(raw.GetProgramCodeB(), main_offset);
// }
UnspecializedShader unspecialized;
unspecialized.entries = GLShader::GetEntries(ir);
unspecialized.type = raw.GetType();
unspecialized.code = raw.GetCode();
unspecialized.code_b = raw.GetCodeB();
unspecialized_shaders.emplace(raw.GetUniqueIdentifier(), unspecialized);
if (callback) {
callback(VideoCore::LoadCallbackStage::Decompile, i, raws.size());
}
}
return true;
}
Shader ShaderCacheOpenGL::GetStageProgram(Maxwell::ShaderProgram program) {
if (!system.GPU().Maxwell3D().dirty.shaders) {
return last_shaders[static_cast<std::size_t>(program)];
}
auto& memory_manager{system.GPU().MemoryManager()};
const GPUVAddr address{GetShaderAddress(system, program)};
// Look up shader in the cache based on address
const auto host_ptr{memory_manager.GetPointer(address)};
Shader shader{TryGet(host_ptr)};
if (shader) {
return last_shaders[static_cast<std::size_t>(program)] = shader;
}
// No shader found - create a new one
ProgramCode code{GetShaderCode(memory_manager, address, host_ptr)};
ProgramCode code_b;
if (program == Maxwell::ShaderProgram::VertexA) {
const GPUVAddr address_b{GetShaderAddress(system, Maxwell::ShaderProgram::VertexB)};
code_b = GetShaderCode(memory_manager, address_b, memory_manager.GetPointer(address_b));
}
const auto unique_identifier = GetUniqueIdentifier(
GetShaderType(program), program == Maxwell::ShaderProgram::VertexA, code, code_b);
const auto precompiled_variants = GetPrecompiledVariants(unique_identifier);
const auto cpu_addr{*memory_manager.GpuToCpuAddress(address)};
const ShaderParameters params{system, disk_cache, precompiled_variants, device,
cpu_addr, host_ptr, unique_identifier};
const auto found = unspecialized_shaders.find(unique_identifier);
if (found == unspecialized_shaders.end()) {
shader = CachedShader::CreateStageFromMemory(params, program, std::move(code),
std::move(code_b));
} else {
shader = CachedShader::CreateFromCache(params, found->second);
}
Register(shader);
return last_shaders[static_cast<std::size_t>(program)] = shader;
}
Shader ShaderCacheOpenGL::GetComputeKernel(GPUVAddr code_addr) {
auto& memory_manager{system.GPU().MemoryManager()};
const auto host_ptr{memory_manager.GetPointer(code_addr)};
auto kernel = TryGet(host_ptr);
if (kernel) {
return kernel;
}
// No kernel found - create a new one
auto code{GetShaderCode(memory_manager, code_addr, host_ptr)};
const auto unique_identifier{GetUniqueIdentifier(ShaderType::Compute, false, code, {})};
const auto precompiled_variants = GetPrecompiledVariants(unique_identifier);
const auto cpu_addr{*memory_manager.GpuToCpuAddress(code_addr)};
const ShaderParameters params{system, disk_cache, precompiled_variants, device,
cpu_addr, host_ptr, unique_identifier};
const auto found = unspecialized_shaders.find(unique_identifier);
if (found == unspecialized_shaders.end()) {
kernel = CachedShader::CreateKernelFromMemory(params, std::move(code));
} else {
kernel = CachedShader::CreateFromCache(params, found->second);
}
Register(kernel);
return kernel;
}
} // namespace OpenGL
