| /* Copyright (c) 2015-2017 The Khronos Group Inc. |
| * Copyright (c) 2015-2017 Valve Corporation |
| * Copyright (c) 2015-2017 LunarG, Inc. |
| * Copyright (C) 2015-2017 Google Inc. |
| * |
| * 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. |
| * |
| * Author: Chris Forbes <chrisf@ijw.co.nz> |
| */ |
| #ifndef VULKAN_SHADER_VALIDATION_H |
| #define VULKAN_SHADER_VALIDATION_H |
| |
| // A forward iterator over spirv instructions. Provides easy access to len, opcode, and content words |
| // without the caller needing to care too much about the physical SPIRV module layout. |
| struct spirv_inst_iter { |
| std::vector<uint32_t>::const_iterator zero; |
| std::vector<uint32_t>::const_iterator it; |
| |
| uint32_t len() { |
| auto result = *it >> 16; |
| assert(result > 0); |
| return result; |
| } |
| |
| uint32_t opcode() { return *it & 0x0ffffu; } |
| |
| uint32_t const &word(unsigned n) { |
| assert(n < len()); |
| return it[n]; |
| } |
| |
| uint32_t offset() { return (uint32_t)(it - zero); } |
| |
| spirv_inst_iter() {} |
| |
| spirv_inst_iter(std::vector<uint32_t>::const_iterator zero, std::vector<uint32_t>::const_iterator it) : zero(zero), it(it) {} |
| |
| bool operator==(spirv_inst_iter const &other) { return it == other.it; } |
| |
| bool operator!=(spirv_inst_iter const &other) { return it != other.it; } |
| |
| spirv_inst_iter operator++(int) { // x++ |
| spirv_inst_iter ii = *this; |
| it += len(); |
| return ii; |
| } |
| |
| spirv_inst_iter operator++() { // ++x; |
| it += len(); |
| return *this; |
| } |
| |
| // The iterator and the value are the same thing. |
| spirv_inst_iter &operator*() { return *this; } |
| spirv_inst_iter const &operator*() const { return *this; } |
| }; |
| |
| struct shader_module { |
| // The spirv image itself |
| std::vector<uint32_t> words; |
| // A mapping of <id> to the first word of its def. this is useful because walking type |
| // trees, constant expressions, etc requires jumping all over the instruction stream. |
| std::unordered_map<unsigned, unsigned> def_index; |
| bool has_valid_spirv; |
| |
| shader_module(VkShaderModuleCreateInfo const *pCreateInfo) |
| : words((uint32_t *)pCreateInfo->pCode, (uint32_t *)pCreateInfo->pCode + pCreateInfo->codeSize / sizeof(uint32_t)), |
| def_index(), |
| has_valid_spirv(true) { |
| build_def_index(); |
| } |
| |
| shader_module() : has_valid_spirv(false) {} |
| |
| // Expose begin() / end() to enable range-based for |
| spirv_inst_iter begin() const { return spirv_inst_iter(words.begin(), words.begin() + 5); } // First insn |
| spirv_inst_iter end() const { return spirv_inst_iter(words.begin(), words.end()); } // Just past last insn |
| // Given an offset into the module, produce an iterator there. |
| spirv_inst_iter at(unsigned offset) const { return spirv_inst_iter(words.begin(), words.begin() + offset); } |
| |
| // Gets an iterator to the definition of an id |
| spirv_inst_iter get_def(unsigned id) const { |
| auto it = def_index.find(id); |
| if (it == def_index.end()) { |
| return end(); |
| } |
| return at(it->second); |
| } |
| |
| void build_def_index(); |
| }; |
| |
| bool validate_and_capture_pipeline_shader_state(layer_data *dev_data, PIPELINE_STATE *pPipeline); |
| bool validate_compute_pipeline(layer_data *dev_data, PIPELINE_STATE *pPipeline); |
| typedef std::pair<unsigned, unsigned> descriptor_slot_t; |
| bool PreCallValidateCreateShaderModule(layer_data *dev_data, VkShaderModuleCreateInfo const *pCreateInfo, bool *spirv_valid); |
| |
| #endif //VULKAN_SHADER_VALIDATION_H |