| // 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 <atomic> |
| #include <cstring> |
| |
| namespace vk { |
| |
| static std::atomic<uint32_t> layoutIdentifierSerial = { 1 }; // Start at 1. 0 is invalid/void layout. |
| |
| PipelineLayout::PipelineLayout(const VkPipelineLayoutCreateInfo *pCreateInfo, void *mem) |
| : identifier(layoutIdentifierSerial++) |
| , descriptorSetCount(pCreateInfo->setLayoutCount) |
| , pushConstantRangeCount(pCreateInfo->pushConstantRangeCount) |
| { |
| Binding *bindingStorage = reinterpret_cast<Binding *>(mem); |
| uint32_t dynamicOffsetIndex = 0; |
| |
| descriptorSets[0].bindings = bindingStorage; // Used in destroy() for deallocation. |
| |
| for(uint32_t i = 0; i < pCreateInfo->setLayoutCount; i++) |
| { |
| const vk::DescriptorSetLayout *setLayout = vk::Cast(pCreateInfo->pSetLayouts[i]); |
| uint32_t bindingsArraySize = setLayout->getBindingsArraySize(); |
| descriptorSets[i].bindings = bindingStorage; |
| bindingStorage += bindingsArraySize; |
| descriptorSets[i].bindingCount = bindingsArraySize; |
| |
| for(uint32_t j = 0; j < bindingsArraySize; j++) |
| { |
| descriptorSets[i].bindings[j].descriptorType = setLayout->getDescriptorType(j); |
| descriptorSets[i].bindings[j].offset = setLayout->getBindingOffset(j); |
| descriptorSets[i].bindings[j].dynamicOffsetIndex = dynamicOffsetIndex; |
| descriptorSets[i].bindings[j].descriptorCount = setLayout->getDescriptorCount(j); |
| |
| if(DescriptorSetLayout::IsDescriptorDynamic(descriptorSets[i].bindings[j].descriptorType)) |
| { |
| dynamicOffsetIndex += setLayout->getDescriptorCount(j); |
| } |
| } |
| } |
| |
| size_t pushConstantRangesSize = pCreateInfo->pushConstantRangeCount * sizeof(VkPushConstantRange); |
| pushConstantRanges = reinterpret_cast<VkPushConstantRange *>(bindingStorage); |
| memcpy(pushConstantRanges, pCreateInfo->pPushConstantRanges, pushConstantRangesSize); |
| |
| incRefCount(); |
| } |
| |
| void PipelineLayout::destroy(const VkAllocationCallbacks *pAllocator) |
| { |
| vk::deallocate(descriptorSets[0].bindings, pAllocator); // pushConstantRanges are in the same allocation |
| } |
| |
| bool PipelineLayout::release(const VkAllocationCallbacks *pAllocator) |
| { |
| if(decRefCount() == 0) |
| { |
| vk::deallocate(descriptorSets[0].bindings, pAllocator); // pushConstantRanges are in the same allocation |
| return true; |
| } |
| return false; |
| } |
| |
| size_t PipelineLayout::ComputeRequiredAllocationSize(const VkPipelineLayoutCreateInfo *pCreateInfo) |
| { |
| uint32_t bindingsCount = 0; |
| for(uint32_t i = 0; i < pCreateInfo->setLayoutCount; i++) |
| { |
| bindingsCount += vk::Cast(pCreateInfo->pSetLayouts[i])->getBindingsArraySize(); |
| } |
| |
| return bindingsCount * sizeof(Binding) + // descriptorSets[] |
| pCreateInfo->pushConstantRangeCount * sizeof(VkPushConstantRange); // pushConstantRanges[] |
| } |
| |
| size_t PipelineLayout::getDescriptorSetCount() const |
| { |
| return descriptorSetCount; |
| } |
| |
| uint32_t PipelineLayout::getDynamicOffsetIndex(uint32_t setNumber, uint32_t bindingNumber) const |
| { |
| ASSERT(setNumber < descriptorSetCount && bindingNumber < descriptorSets[setNumber].bindingCount); |
| return descriptorSets[setNumber].bindings[bindingNumber].dynamicOffsetIndex; |
| } |
| |
| uint32_t PipelineLayout::getDescriptorCount(uint32_t setNumber, uint32_t bindingNumber) const |
| { |
| ASSERT(setNumber < descriptorSetCount && bindingNumber < descriptorSets[setNumber].bindingCount); |
| return descriptorSets[setNumber].bindings[bindingNumber].descriptorCount; |
| } |
| |
| uint32_t PipelineLayout::getBindingOffset(uint32_t setNumber, uint32_t bindingNumber) const |
| { |
| ASSERT(setNumber < descriptorSetCount && bindingNumber < descriptorSets[setNumber].bindingCount); |
| return descriptorSets[setNumber].bindings[bindingNumber].offset; |
| } |
| |
| VkDescriptorType PipelineLayout::getDescriptorType(uint32_t setNumber, uint32_t bindingNumber) const |
| { |
| ASSERT(setNumber < descriptorSetCount && bindingNumber < descriptorSets[setNumber].bindingCount); |
| return descriptorSets[setNumber].bindings[bindingNumber].descriptorType; |
| } |
| |
| uint32_t PipelineLayout::getDescriptorSize(uint32_t setNumber, uint32_t bindingNumber) const |
| { |
| return DescriptorSetLayout::GetDescriptorSize(getDescriptorType(setNumber, bindingNumber)); |
| } |
| |
| bool PipelineLayout::isDescriptorDynamic(uint32_t setNumber, uint32_t bindingNumber) const |
| { |
| return DescriptorSetLayout::IsDescriptorDynamic(getDescriptorType(setNumber, bindingNumber)); |
| } |
| |
| uint32_t PipelineLayout::incRefCount() |
| { |
| return ++refCount; |
| } |
| |
| uint32_t PipelineLayout::decRefCount() |
| { |
| return --refCount; |
| } |
| |
| } // namespace vk |