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Use static vector for shader bytecode to prevent constant reallocation
Using `std::vector` for shader bytecode led to a lot of reallocation due to constant resizing, switching over the static vector allows for a single static allocation of the maximum possible guest shader size (1 MiB) to be done for every stage resulting in a 6 MiB preallocation which is unnoticeable given the total memory overhead of running a Switch application.
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@ -138,8 +138,8 @@ namespace skyline {
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* @return If returning was caused by the supplied function returning a non-nullopt value or other conditions
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* @note The function will **NOT** be run on any sparse block
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*/
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template<typename Function>
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bool ReadTill(std::vector<u8>& destination, VaType virt, Function function) {
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template<typename Function, typename Container>
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bool ReadTill(Container& destination, VaType virt, Function function) {
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//TRACE_EVENT("containers", "FlatMemoryManager::ReadTill");
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std::scoped_lock lock(this->blockMutex);
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@ -618,6 +618,8 @@ namespace skyline::gpu::interconnect {
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/* Shader Program */
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private:
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constexpr static size_t MaxShaderBytecodeSize{1 * 1024 * 1024}; //!< The largest shader binary that we support (1 MiB)
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struct Shader {
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bool enabled{false};
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ShaderCompiler::Stage stage;
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@ -625,7 +627,7 @@ namespace skyline::gpu::interconnect {
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bool invalidated{true}; //!< If the shader that existed earlier has been invalidated
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bool shouldCheckSame{false}; //!< If we should do a check for the shader being the same as before
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u32 offset{}; //!< Offset of the shader from the base IOVA
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std::vector<u8> data; //!< The shader bytecode in a vector
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boost::container::static_vector<u8, MaxShaderBytecodeSize> data; //!< The shader bytecode in a statically allocated vector
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std::optional<ShaderCompiler::IR::Program> program;
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Shader(ShaderCompiler::Stage stage) : stage(stage) {}
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@ -657,14 +659,14 @@ namespace skyline::gpu::interconnect {
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};
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struct ShaderSet : public std::array<Shader, maxwell3d::ShaderStageCount> {
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ShaderSet() : array({
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Shader{ShaderCompiler::Stage::VertexA},
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Shader{ShaderCompiler::Stage::VertexB},
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Shader{ShaderCompiler::Stage::TessellationControl},
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Shader{ShaderCompiler::Stage::TessellationEval},
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Shader{ShaderCompiler::Stage::Geometry},
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Shader{ShaderCompiler::Stage::Fragment},
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}) {}
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ShaderSet() : array{
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Shader{ShaderCompiler::Stage::VertexA},
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Shader{ShaderCompiler::Stage::VertexB},
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Shader{ShaderCompiler::Stage::TessellationControl},
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Shader{ShaderCompiler::Stage::TessellationEval},
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Shader{ShaderCompiler::Stage::Geometry},
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Shader{ShaderCompiler::Stage::Fragment},
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} {}
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Shader &at(maxwell3d::ShaderStage stage) {
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return array::at(static_cast<size_t>(stage));
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@ -692,13 +694,13 @@ namespace skyline::gpu::interconnect {
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};
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struct PipelineStages : public std::array<PipelineStage, maxwell3d::PipelineStageCount> {
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PipelineStages() : array({
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PipelineStage{vk::ShaderStageFlagBits::eVertex},
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PipelineStage{vk::ShaderStageFlagBits::eTessellationControl},
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PipelineStage{vk::ShaderStageFlagBits::eTessellationEvaluation},
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PipelineStage{vk::ShaderStageFlagBits::eGeometry},
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PipelineStage{vk::ShaderStageFlagBits::eFragment},
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}) {}
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PipelineStages() : array{
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PipelineStage{vk::ShaderStageFlagBits::eVertex},
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PipelineStage{vk::ShaderStageFlagBits::eTessellationControl},
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PipelineStage{vk::ShaderStageFlagBits::eTessellationEvaluation},
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PipelineStage{vk::ShaderStageFlagBits::eGeometry},
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PipelineStage{vk::ShaderStageFlagBits::eFragment},
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} {}
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PipelineStage &at(maxwell3d::PipelineStage stage) {
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return array::at(static_cast<size_t>(stage));
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@ -715,8 +717,6 @@ namespace skyline::gpu::interconnect {
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ShaderCompiler::RuntimeInfo runtimeInfo{};
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constexpr static size_t MaxShaderBytecodeSize{1 * 1024 * 1024}; //!< The largest shader binary that we support (1 MiB)
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constexpr static size_t PipelineUniqueDescriptorTypeCount{2}; //!< The amount of unique descriptor types that may be bound to a pipeline
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constexpr static size_t MaxPipelineDescriptorWriteCount{maxwell3d::PipelineStageCount * PipelineUniqueDescriptorTypeCount}; //!< The maxium amount of descriptors writes that are used to bind a pipeline
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constexpr static size_t MaxPipelineDescriptorCount{100}; //!< The maxium amount of descriptors we support being bound to a pipeline
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