gl_shader_cache: Specialize shader workgroup
Drop the usage of ARB_compute_variable_group_size and specialize compute shaders instead. This permits compute to run on AMD and Intel proprietary drivers.
This commit is contained in:
ReinUsesLisp
parent
dc9961f341
commit
4f5d8e4342
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@ -140,7 +140,7 @@ public:
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INSERT_PADDING_WORDS(0x3);
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BitField<0, 16, u32> shared_alloc;
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BitField<0, 18, u32> shared_alloc;
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BitField<16, 16, u32> block_dim_x;
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union {
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@ -273,8 +273,8 @@ void RasterizerOpenGL::SetupShaders(GLenum primitive_mode) {
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SetupDrawGlobalMemory(stage, shader);
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SetupDrawTextures(stage, shader, base_bindings);
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const ProgramVariant variant{base_bindings, primitive_mode};
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const auto [program_handle, next_bindings] = shader->GetProgramHandle(variant);
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const ProgramVariant variant(base_bindings, primitive_mode);
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const auto [program_handle, next_bindings] = shader->GetHandle(variant);
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switch (program) {
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case Maxwell::ShaderProgram::VertexA:
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@ -725,18 +725,14 @@ bool RasterizerOpenGL::DrawMultiBatch(bool is_indexed) {
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}
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void RasterizerOpenGL::DispatchCompute(GPUVAddr code_addr) {
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if (!GLAD_GL_ARB_compute_variable_group_size) {
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LOG_ERROR(Render_OpenGL, "Compute is currently not supported on this device due to the "
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"lack of GL_ARB_compute_variable_group_size");
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return;
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}
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auto kernel = shader_cache.GetComputeKernel(code_addr);
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SetupComputeTextures(kernel);
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SetupComputeImages(kernel);
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const auto [program, next_bindings] = kernel->GetProgramHandle({});
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state.draw.shader_program = program;
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const auto& launch_desc = system.GPU().KeplerCompute().launch_description;
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const ProgramVariant variant(launch_desc.block_dim_x, launch_desc.block_dim_y,
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launch_desc.block_dim_z);
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std::tie(state.draw.shader_program, std::ignore) = kernel->GetHandle(variant);
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state.draw.program_pipeline = 0;
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const std::size_t buffer_size =
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@ -760,10 +756,7 @@ void RasterizerOpenGL::DispatchCompute(GPUVAddr code_addr) {
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state.ApplyShaderProgram();
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state.ApplyProgramPipeline();
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const auto& launch_desc = system.GPU().KeplerCompute().launch_description;
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glDispatchComputeGroupSizeARB(launch_desc.grid_dim_x, launch_desc.grid_dim_y,
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launch_desc.grid_dim_z, launch_desc.block_dim_x,
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launch_desc.block_dim_y, launch_desc.block_dim_z);
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glDispatchCompute(launch_desc.grid_dim_x, launch_desc.grid_dim_y, launch_desc.grid_dim_z);
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}
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void RasterizerOpenGL::FlushAll() {}
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@ -255,7 +255,7 @@ void FillLocker(ConstBufferLocker& locker, const ShaderDiskCacheUsage& usage) {
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CachedProgram BuildShader(const Device& device, u64 unique_identifier, ProgramType program_type,
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const ProgramCode& program_code, const ProgramCode& program_code_b,
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const ProgramVariant& variant, ConstBufferLocker& locker,
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ConstBufferLocker& locker, const ProgramVariant& variant,
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bool hint_retrievable = false) {
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LOG_INFO(Render_OpenGL, "called. {}", GetShaderId(unique_identifier, program_type));
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@ -268,17 +268,11 @@ CachedProgram BuildShader(const Device& device, u64 unique_identifier, ProgramTy
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}
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const auto entries = GLShader::GetEntries(ir);
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auto base_bindings{variant.base_bindings};
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const auto primitive_mode{variant.primitive_mode};
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std::string source = fmt::format(R"(// {}
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#version 430 core
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#extension GL_ARB_separate_shader_objects : enable
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)",
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GetShaderId(unique_identifier, program_type));
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if (is_compute) {
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source += "#extension GL_ARB_compute_variable_group_size : require\n";
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}
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if (device.HasShaderBallot()) {
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source += "#extension GL_ARB_shader_ballot : require\n";
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}
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@ -295,6 +289,7 @@ CachedProgram BuildShader(const Device& device, u64 unique_identifier, ProgramTy
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}
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source += '\n';
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auto base_bindings = variant.base_bindings;
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if (!is_compute) {
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source += fmt::format("#define EMULATION_UBO_BINDING {}\n", base_bindings.cbuf++);
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}
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@ -318,13 +313,15 @@ CachedProgram BuildShader(const Device& device, u64 unique_identifier, ProgramTy
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if (program_type == ProgramType::Geometry) {
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const auto [glsl_topology, debug_name, max_vertices] =
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GetPrimitiveDescription(primitive_mode);
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GetPrimitiveDescription(variant.primitive_mode);
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source += "layout (" + std::string(glsl_topology) + ") in;\n\n";
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source += "#define MAX_VERTEX_INPUT " + std::to_string(max_vertices) + '\n';
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source += fmt::format("layout ({}) in;\n\n", glsl_topology);
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source += fmt::format("#define MAX_VERTEX_INPUT {}\n", max_vertices);
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}
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if (program_type == ProgramType::Compute) {
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source += "layout (local_size_variable) in;\n";
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source +=
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fmt::format("layout (local_size_x = {}, local_size_y = {}, local_size_z = {}) in;\n",
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variant.block_x, variant.block_y, variant.block_z);
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}
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source += '\n';
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@ -422,58 +419,53 @@ Shader CachedShader::CreateFromCache(const ShaderParameters& params,
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unspecialized.code_b));
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}
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std::tuple<GLuint, BaseBindings> CachedShader::GetProgramHandle(const ProgramVariant& variant) {
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UpdateVariant();
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std::tuple<GLuint, BaseBindings> CachedShader::GetHandle(const ProgramVariant& variant) {
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EnsureValidLockerVariant();
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const auto [entry, is_cache_miss] = curr_variant->programs.try_emplace(variant);
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const auto [entry, is_cache_miss] = curr_locker_variant->programs.try_emplace(variant);
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auto& program = entry->second;
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if (is_cache_miss) {
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program = BuildShader(device, unique_identifier, program_type, program_code, program_code_b,
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variant, *curr_variant->locker);
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disk_cache.SaveUsage(GetUsage(variant, *curr_variant->locker));
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*curr_locker_variant->locker, variant);
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disk_cache.SaveUsage(GetUsage(variant, *curr_locker_variant->locker));
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LabelGLObject(GL_PROGRAM, program->handle, cpu_addr);
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}
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auto base_bindings = variant.base_bindings;
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base_bindings.cbuf += static_cast<u32>(entries.const_buffers.size());
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if (program_type != ProgramType::Compute) {
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base_bindings.cbuf += STAGE_RESERVED_UBOS;
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}
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base_bindings.gmem += static_cast<u32>(entries.global_memory_entries.size());
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base_bindings.sampler += static_cast<u32>(entries.samplers.size());
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return {program->handle, base_bindings};
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}
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void CachedShader::UpdateVariant() {
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if (curr_variant && !curr_variant->locker->IsConsistent()) {
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curr_variant = nullptr;
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bool CachedShader::EnsureValidLockerVariant() {
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const auto previous_variant = curr_locker_variant;
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if (curr_locker_variant && !curr_locker_variant->locker->IsConsistent()) {
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curr_locker_variant = nullptr;
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}
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if (!curr_variant) {
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if (!curr_locker_variant) {
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for (auto& variant : locker_variants) {
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if (variant->locker->IsConsistent()) {
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curr_variant = variant.get();
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curr_locker_variant = variant.get();
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}
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}
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}
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if (!curr_variant) {
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if (!curr_locker_variant) {
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auto& new_variant = locker_variants.emplace_back();
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new_variant = std::make_unique<LockerVariant>();
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new_variant->locker = MakeLocker(system, program_type);
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curr_variant = new_variant.get();
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curr_locker_variant = new_variant.get();
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}
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return previous_variant == curr_locker_variant;
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}
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ShaderDiskCacheUsage CachedShader::GetUsage(const ProgramVariant& variant,
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const ConstBufferLocker& locker) const {
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ShaderDiskCacheUsage usage;
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usage.unique_identifier = unique_identifier;
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usage.variant = variant;
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usage.keys = locker.GetKeys();
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usage.bound_samplers = locker.GetBoundSamplers();
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usage.bindless_samplers = locker.GetBindlessSamplers();
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return usage;
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return ShaderDiskCacheUsage{unique_identifier, variant, locker.GetKeys(),
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locker.GetBoundSamplers(), locker.GetBindlessSamplers()};
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}
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ShaderCacheOpenGL::ShaderCacheOpenGL(RasterizerOpenGL& rasterizer, Core::System& system,
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@ -534,9 +526,10 @@ void ShaderCacheOpenGL::LoadDiskCache(const std::atomic_bool& stop_loading,
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if (!shader) {
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auto locker{MakeLocker(system, unspecialized.program_type)};
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FillLocker(*locker, usage);
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shader = BuildShader(device, usage.unique_identifier, unspecialized.program_type,
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unspecialized.code, unspecialized.code_b, usage.variant,
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*locker, true);
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unspecialized.code, unspecialized.code_b, *locker,
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usage.variant, true);
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}
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std::scoped_lock lock{mutex};
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@ -86,7 +86,7 @@ public:
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}
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/// Gets the GL program handle for the shader
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std::tuple<GLuint, BaseBindings> GetProgramHandle(const ProgramVariant& variant);
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std::tuple<GLuint, BaseBindings> GetHandle(const ProgramVariant& variant);
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private:
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struct LockerVariant {
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@ -98,7 +98,7 @@ private:
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GLShader::ShaderEntries entries, ProgramCode program_code,
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ProgramCode program_code_b);
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void UpdateVariant();
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bool EnsureValidLockerVariant();
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ShaderDiskCacheUsage GetUsage(const ProgramVariant& variant,
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const VideoCommon::Shader::ConstBufferLocker& locker) const;
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@ -117,7 +117,7 @@ private:
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ProgramCode program_code;
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ProgramCode program_code_b;
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LockerVariant* curr_variant = nullptr;
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LockerVariant* curr_locker_variant = nullptr;
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std::vector<std::unique_ptr<LockerVariant>> locker_variants;
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};
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@ -52,11 +52,11 @@ struct BindlessSamplerKey {
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Tegra::Engines::SamplerDescriptor sampler{};
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};
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constexpr u32 NativeVersion = 6;
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constexpr u32 NativeVersion = 7;
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// Making sure sizes doesn't change by accident
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static_assert(sizeof(BaseBindings) == 16);
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static_assert(sizeof(ProgramVariant) == 20);
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static_assert(sizeof(ProgramVariant) == 28);
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ShaderCacheVersionHash GetShaderCacheVersionHash() {
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ShaderCacheVersionHash hash{};
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@ -44,32 +44,49 @@ struct BaseBindings {
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u32 sampler{};
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u32 image{};
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bool operator==(const BaseBindings& rhs) const {
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bool operator==(const BaseBindings& rhs) const noexcept {
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return std::tie(cbuf, gmem, sampler, image) ==
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std::tie(rhs.cbuf, rhs.gmem, rhs.sampler, rhs.image);
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}
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bool operator!=(const BaseBindings& rhs) const {
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bool operator!=(const BaseBindings& rhs) const noexcept {
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return !operator==(rhs);
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}
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};
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static_assert(std::is_trivially_copyable_v<BaseBindings>);
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/// Describes the different variants a single program can be compiled.
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struct ProgramVariant {
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BaseBindings base_bindings;
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GLenum primitive_mode{};
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/// Describes the different variants a program can be compiled with.
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struct ProgramVariant final {
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ProgramVariant() = default;
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bool operator==(const ProgramVariant& rhs) const {
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return std::tie(base_bindings, primitive_mode) ==
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std::tie(rhs.base_bindings, rhs.primitive_mode);
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/// Graphics constructor.
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explicit constexpr ProgramVariant(BaseBindings base_bindings, GLenum primitive_mode) noexcept
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: base_bindings{base_bindings}, primitive_mode{primitive_mode} {}
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/// Compute constructor.
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explicit constexpr ProgramVariant(u32 block_x, u32 block_y, u32 block_z) noexcept
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: block_x{block_x}, block_y{static_cast<u16>(block_y)}, block_z{static_cast<u16>(block_z)} {
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}
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bool operator!=(const ProgramVariant& rhs) const {
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// Graphics specific parameters.
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BaseBindings base_bindings{};
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GLenum primitive_mode{};
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// Compute specific parameters.
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u32 block_x{};
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u16 block_y{};
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u16 block_z{};
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bool operator==(const ProgramVariant& rhs) const noexcept {
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return std::tie(base_bindings, primitive_mode, block_x, block_y, block_z) ==
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std::tie(rhs.base_bindings, rhs.primitive_mode, rhs.block_x, rhs.block_y,
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rhs.block_z);
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}
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bool operator!=(const ProgramVariant& rhs) const noexcept {
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return !operator==(rhs);
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}
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};
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static_assert(std::is_trivially_copyable_v<ProgramVariant>);
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/// Describes how a shader is used.
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@ -108,8 +125,11 @@ struct hash<OpenGL::BaseBindings> {
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template <>
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struct hash<OpenGL::ProgramVariant> {
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std::size_t operator()(const OpenGL::ProgramVariant& variant) const noexcept {
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return std::hash<OpenGL::BaseBindings>()(variant.base_bindings) ^
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(static_cast<std::size_t>(variant.primitive_mode) << 6);
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return std::hash<OpenGL::BaseBindings>{}(variant.base_bindings) ^
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(static_cast<std::size_t>(variant.primitive_mode) << 6) ^
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static_cast<std::size_t>(variant.block_x) ^
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(static_cast<std::size_t>(variant.block_y) << 32) ^
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(static_cast<std::size_t>(variant.block_z) << 48);
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}
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};
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@ -117,7 +137,7 @@ template <>
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struct hash<OpenGL::ShaderDiskCacheUsage> {
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std::size_t operator()(const OpenGL::ShaderDiskCacheUsage& usage) const noexcept {
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return static_cast<std::size_t>(usage.unique_identifier) ^
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std::hash<OpenGL::ProgramVariant>()(usage.variant);
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std::hash<OpenGL::ProgramVariant>{}(usage.variant);
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}
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};
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