| // 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 VK_DESCRIPTOR_SET_LAYOUT_HPP_ |
| #define VK_DESCRIPTOR_SET_LAYOUT_HPP_ |
| |
| #include "VkObject.hpp" |
| |
| #include "Vulkan/VkSampler.hpp" |
| #include "Vulkan/VkImageView.hpp" |
| #include "Device/Sampler.hpp" |
| |
| namespace vk |
| { |
| |
| class DescriptorSet; |
| |
| // TODO(b/129523279): Move to the Device or Pipeline layer. |
| struct alignas(16) SampledImageDescriptor |
| { |
| ~SampledImageDescriptor() = delete; |
| |
| void updateSampler(const vk::Sampler *sampler); |
| |
| // TODO(b/129523279): Minimize to the data actually needed. |
| vk::Sampler sampler; |
| |
| uint32_t imageViewId; |
| VkImageViewType type; |
| VkFormat format; |
| VkComponentMapping swizzle; |
| alignas(16) sw::Texture texture; |
| VkExtent3D extent; // Of base mip-level. |
| int arrayLayers; |
| int mipLevels; |
| int sampleCount; |
| }; |
| |
| struct alignas(16) StorageImageDescriptor |
| { |
| ~StorageImageDescriptor() = delete; |
| |
| void *ptr; |
| VkExtent3D extent; |
| int rowPitchBytes; |
| int slicePitchBytes; |
| int samplePitchBytes; |
| int arrayLayers; |
| int sampleCount; |
| int sizeInBytes; |
| |
| void *stencilPtr; |
| int stencilRowPitchBytes; |
| int stencilSlicePitchBytes; |
| int stencilSamplePitchBytes; |
| }; |
| |
| struct alignas(16) BufferDescriptor |
| { |
| ~BufferDescriptor() = delete; |
| |
| void *ptr; |
| int sizeInBytes; // intended size of the bound region -- slides along with dynamic offsets |
| int robustnessSize; // total accessible size from static offset -- does not move with dynamic offset |
| }; |
| |
| class DescriptorSetLayout : public Object<DescriptorSetLayout, VkDescriptorSetLayout> |
| { |
| public: |
| DescriptorSetLayout(const VkDescriptorSetLayoutCreateInfo* pCreateInfo, void* mem); |
| void destroy(const VkAllocationCallbacks* pAllocator); |
| |
| static size_t ComputeRequiredAllocationSize(const VkDescriptorSetLayoutCreateInfo* pCreateInfo); |
| |
| static size_t GetDescriptorSize(VkDescriptorType type); |
| static void WriteDescriptorSet(const VkWriteDescriptorSet& descriptorWrites); |
| static void CopyDescriptorSet(const VkCopyDescriptorSet& descriptorCopies); |
| |
| static void WriteDescriptorSet(DescriptorSet *dstSet, VkDescriptorUpdateTemplateEntry const &entry, char const *src); |
| static void WriteTextureLevelInfo(sw::Texture *texture, int level, int width, int height, int depth, int pitchP, int sliceP); |
| |
| void initialize(DescriptorSet* descriptorSet); |
| |
| // Returns the total size of the descriptor set in bytes. |
| size_t getDescriptorSetAllocationSize() const; |
| |
| // Returns the number of bindings in the descriptor set. |
| size_t getBindingCount() const; |
| |
| // Returns true iff the given binding exists. |
| bool hasBinding(uint32_t binding) const; |
| |
| // Returns the byte offset from the base address of the descriptor set for |
| // the given binding and array element within that binding. |
| size_t getBindingOffset(uint32_t binding, size_t arrayElement) const; |
| |
| // Returns the stride of an array of descriptors |
| size_t getBindingStride(uint32_t binding) const; |
| |
| // Returns the number of descriptors across all bindings that are dynamic |
| // (see isBindingDynamic). |
| uint32_t getDynamicDescriptorCount() const; |
| |
| // Returns the relative offset into the pipeline's dynamic offsets array for |
| // the given binding. This offset should be added to the base offset |
| // returned by PipelineLayout::getDynamicOffsetBase() to produce the |
| // starting index for dynamic descriptors. |
| uint32_t getDynamicDescriptorOffset(uint32_t binding) const; |
| |
| // Returns true if the given binding is of type: |
| // VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC or |
| // VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC |
| bool isBindingDynamic(uint32_t binding) const; |
| |
| // Returns the VkDescriptorSetLayoutBinding for the given binding. |
| VkDescriptorSetLayoutBinding const & getBindingLayout(uint32_t binding) const; |
| |
| uint8_t* getOffsetPointer(DescriptorSet *descriptorSet, uint32_t binding, uint32_t arrayElement, uint32_t count, size_t* typeSize) const; |
| |
| private: |
| size_t getDescriptorSetDataSize() const; |
| uint32_t getBindingIndex(uint32_t binding) const; |
| static bool isDynamic(VkDescriptorType type); |
| |
| VkDescriptorSetLayoutCreateFlags flags; |
| uint32_t bindingCount; |
| VkDescriptorSetLayoutBinding* bindings; |
| size_t* bindingOffsets; |
| }; |
| |
| static inline DescriptorSetLayout* Cast(VkDescriptorSetLayout object) |
| { |
| return DescriptorSetLayout::Cast(object); |
| } |
| |
| } // namespace vk |
| |
| #endif // VK_DESCRIPTOR_SET_LAYOUT_HPP_ |