| // 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. |
| |
| #include "VkPipelineLayout.hpp" |
| #include <cstring> |
| |
| namespace vk |
| { |
| |
| PipelineLayout::PipelineLayout(const VkPipelineLayoutCreateInfo* pCreateInfo, void* mem) |
| : setLayoutCount(pCreateInfo->setLayoutCount), pushConstantRangeCount(pCreateInfo->pushConstantRangeCount) |
| { |
| char* hostMem = reinterpret_cast<char*>(mem); |
| |
| size_t setLayoutsSize = pCreateInfo->setLayoutCount * sizeof(DescriptorSetLayout*); |
| setLayouts = reinterpret_cast<DescriptorSetLayout**>(hostMem); |
| memcpy(setLayouts, pCreateInfo->pSetLayouts, setLayoutsSize); // Assumes Cast(VkDescriptorSetLayout) is nothing but a cast |
| hostMem += setLayoutsSize; |
| |
| size_t pushConstantRangesSize = pCreateInfo->pushConstantRangeCount * sizeof(VkPushConstantRange); |
| pushConstantRanges = reinterpret_cast<VkPushConstantRange*>(hostMem); |
| memcpy(pushConstantRanges, pCreateInfo->pPushConstantRanges, pushConstantRangesSize); |
| } |
| |
| void PipelineLayout::destroy(const VkAllocationCallbacks* pAllocator) |
| { |
| vk::deallocate(setLayouts, pAllocator); // pushConstantRanges are in the same allocation |
| } |
| |
| size_t PipelineLayout::ComputeRequiredAllocationSize(const VkPipelineLayoutCreateInfo* pCreateInfo) |
| { |
| return (pCreateInfo->setLayoutCount * sizeof(DescriptorSetLayout*)) + |
| (pCreateInfo->pushConstantRangeCount * sizeof(VkPushConstantRange)); |
| } |
| |
| } // namespace vk |