| // 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 "Device/Sampler.hpp" |
| #include "Vulkan/VkImageView.hpp" |
| #include "Vulkan/VkSampler.hpp" |
| |
| #include <cstdint> |
| |
| namespace vk { |
| |
| class DescriptorSet; |
| class Device; |
| |
| // TODO(b/129523279): Move to the Device or Pipeline layer. |
| struct alignas(16) ImageDescriptor |
| { |
| uint32_t imageViewId; |
| }; |
| |
| struct alignas(16) SampledImageDescriptor : ImageDescriptor |
| { |
| ~SampledImageDescriptor() = delete; |
| |
| uint32_t samplerId; |
| |
| alignas(16) sw::Texture texture; |
| int width; // Of base mip-level. |
| int height; |
| int depth; // Layer/cube count for arrayed images |
| int mipLevels; |
| int sampleCount; |
| |
| ImageView *memoryOwner; // Pointer to the view which owns the memory used by the descriptor set |
| }; |
| |
| struct alignas(16) StorageImageDescriptor : ImageDescriptor |
| { |
| ~StorageImageDescriptor() = delete; |
| |
| void *ptr; |
| int width; |
| int height; |
| int depth; // Layer/cube count for arrayed images |
| int rowPitchBytes; |
| int slicePitchBytes; // Layer pitch in case of array image |
| int samplePitchBytes; |
| int sampleCount; |
| int sizeInBytes; |
| |
| void *stencilPtr; |
| int stencilRowPitchBytes; |
| int stencilSlicePitchBytes; // Layer pitch in case of array image |
| int stencilSamplePitchBytes; |
| |
| ImageView *memoryOwner; // Pointer to the view which owns the memory used by the descriptor set |
| }; |
| |
| 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> |
| { |
| struct Binding |
| { |
| VkDescriptorType descriptorType; |
| uint32_t descriptorCount; |
| const vk::Sampler **immutableSamplers; |
| |
| uint32_t offset; // Offset in bytes in the descriptor set data. |
| }; |
| |
| public: |
| DescriptorSetLayout(const VkDescriptorSetLayoutCreateInfo *pCreateInfo, void *mem); |
| void destroy(const VkAllocationCallbacks *pAllocator); |
| |
| static size_t ComputeRequiredAllocationSize(const VkDescriptorSetLayoutCreateInfo *pCreateInfo); |
| |
| static uint32_t GetDescriptorSize(VkDescriptorType type); |
| static bool IsDescriptorDynamic(VkDescriptorType type); |
| |
| static void WriteDescriptorSet(Device *device, const VkWriteDescriptorSet &descriptorWrites); |
| static void CopyDescriptorSet(const VkCopyDescriptorSet &descriptorCopies); |
| |
| static void WriteDescriptorSet(Device *device, 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, int samplePitchP, int sampleMax); |
| |
| void initialize(DescriptorSet *descriptorSet); |
| |
| // Returns the total size of the descriptor set in bytes. |
| size_t getDescriptorSetAllocationSize() const; |
| |
| // Returns the byte offset from the base address of the descriptor set for |
| // the given binding number. |
| uint32_t getBindingOffset(uint32_t bindingNumber) const; |
| |
| // Returns the number of descriptors for the given binding number. |
| uint32_t getDescriptorCount(uint32_t bindingNumber) const; |
| |
| // Returns the number of descriptors across all bindings that are dynamic. |
| uint32_t getDynamicDescriptorCount() const; |
| |
| // Returns the relative index into the pipeline's dynamic offsets array for |
| // the given binding number. This index should be added to the base index |
| // returned by PipelineLayout::getDynamicOffsetBase() to produce the |
| // starting index for dynamic descriptors. |
| uint32_t getDynamicOffsetIndex(uint32_t bindingNumber) const; |
| |
| // Returns the descriptor type for the given binding number. |
| VkDescriptorType getDescriptorType(uint32_t bindingNumber) const; |
| |
| // Returns the number of entries in the direct-indexed array of bindings. |
| // It equals the highest binding number + 1. |
| uint32_t getBindingsArraySize() const { return bindingsArraySize; } |
| |
| private: |
| uint8_t *getDescriptorPointer(DescriptorSet *descriptorSet, uint32_t bindingNumber, uint32_t arrayElement, uint32_t count, size_t *typeSize) const; |
| size_t getDescriptorSetDataSize() const; |
| static bool isDynamic(VkDescriptorType type); |
| |
| const VkDescriptorSetLayoutCreateFlags flags; |
| uint32_t bindingsArraySize = 0; |
| Binding *const bindings; // Direct-indexed array of bindings. |
| }; |
| |
| static inline DescriptorSetLayout *Cast(VkDescriptorSetLayout object) |
| { |
| return DescriptorSetLayout::Cast(object); |
| } |
| |
| } // namespace vk |
| |
| #endif // VK_DESCRIPTOR_SET_LAYOUT_HPP_ |