| // 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); |
| for(uint32_t i = 0; i < pCreateInfo->setLayoutCount; i++) |
| { |
| setLayouts[i] = vk::Cast(pCreateInfo->pSetLayouts[i]); |
| } |
| hostMem += setLayoutsSize; |
| |
| size_t pushConstantRangesSize = pCreateInfo->pushConstantRangeCount * sizeof(VkPushConstantRange); |
| pushConstantRanges = reinterpret_cast<VkPushConstantRange *>(hostMem); |
| memcpy(pushConstantRanges, pCreateInfo->pPushConstantRanges, pushConstantRangesSize); |
| hostMem += pushConstantRangesSize; |
| |
| dynamicOffsetBases = reinterpret_cast<uint32_t *>(hostMem); |
| uint32_t dynamicOffsetBase = 0; |
| for(uint32_t i = 0; i < setLayoutCount; i++) |
| { |
| uint32_t dynamicDescriptorCount = setLayouts[i]->getDynamicDescriptorCount(); |
| ASSERT_OR_RETURN((dynamicOffsetBase + dynamicDescriptorCount) <= MAX_DESCRIPTOR_SET_COMBINED_BUFFERS_DYNAMIC); |
| dynamicOffsetBases[i] = dynamicOffsetBase; |
| dynamicOffsetBase += dynamicDescriptorCount; |
| } |
| } |
| |
| 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)) + |
| (pCreateInfo->setLayoutCount * sizeof(uint32_t)); // dynamicOffsetBases |
| } |
| |
| size_t PipelineLayout::getNumDescriptorSets() const |
| { |
| return setLayoutCount; |
| } |
| |
| DescriptorSetLayout const *PipelineLayout::getDescriptorSetLayout(size_t descriptorSet) const |
| { |
| ASSERT(descriptorSet < setLayoutCount); |
| return setLayouts[descriptorSet]; |
| } |
| |
| uint32_t PipelineLayout::getDynamicOffsetBase(size_t descriptorSet) const |
| { |
| ASSERT(descriptorSet < setLayoutCount); |
| return dynamicOffsetBases[descriptorSet]; |
| } |
| |
| } // namespace vk |