| // Copyright 2018 The SwiftShader Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef sw_SpirvShader_hpp |
| #define sw_SpirvShader_hpp |
| |
| #include "System/Types.hpp" |
| #include "Vulkan/VkDebug.hpp" |
| |
| #include <string> |
| #include <vector> |
| #include <unordered_map> |
| #include <cstdint> |
| #include <spirv/unified1/spirv.hpp> |
| |
| namespace sw |
| { |
| class SpirvShader |
| { |
| public: |
| using InsnStore = std::vector<uint32_t>; |
| InsnStore insns; |
| |
| /* Pseudo-iterator over SPIRV instructions, designed to support range-based-for. */ |
| class InsnIterator |
| { |
| InsnStore::const_iterator iter; |
| |
| public: |
| spv::Op opcode() const |
| { |
| return static_cast<spv::Op>(*iter & spv::OpCodeMask); |
| } |
| |
| uint32_t wordCount() const |
| { return *iter >> spv::WordCountShift; } |
| |
| uint32_t word(uint32_t n) const |
| { |
| ASSERT(n < wordCount()); |
| return iter[n]; |
| } |
| |
| bool operator!=(InsnIterator const &other) const |
| { |
| return iter != other.iter; |
| } |
| |
| InsnIterator operator*() const |
| { return *this; } |
| |
| InsnIterator &operator++() |
| { |
| iter += wordCount(); |
| return *this; |
| } |
| |
| InsnIterator const operator++(int) |
| { |
| InsnIterator ret{*this}; |
| iter += wordCount(); |
| return ret; |
| } |
| |
| InsnIterator(InsnIterator const &other) = default; |
| |
| InsnIterator() = default; |
| |
| explicit InsnIterator(InsnStore::const_iterator iter) : iter{iter} |
| {} |
| }; |
| |
| /* range-based-for interface */ |
| InsnIterator begin() const |
| { return InsnIterator{insns.cbegin() + 5}; } |
| |
| InsnIterator end() const |
| { return InsnIterator{insns.cend()}; } |
| |
| int getSerialID() const |
| { return serialID; } |
| |
| explicit SpirvShader(InsnStore const &insns); |
| |
| struct Modes |
| { |
| bool EarlyFragmentTests : 1; |
| bool DepthReplacing : 1; |
| bool DepthGreater : 1; |
| bool DepthLess : 1; |
| bool DepthUnchanged : 1; |
| |
| // Compute workgroup dimensions |
| int LocalSizeX, LocalSizeY, LocalSizeZ; |
| }; |
| |
| Modes const &getModes() const |
| { return modes; } |
| |
| private: |
| const int serialID; |
| static volatile int serialCounter; |
| Modes modes; |
| |
| void ProcessExecutionMode(InsnIterator it); |
| }; |
| } |
| |
| #endif // sw_SpirvShader_hpp |