1 // Copyright 2018 The Amber Authors. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef SRC_VULKAN_BUFFER_DESCRIPTOR_H_ 16 #define SRC_VULKAN_BUFFER_DESCRIPTOR_H_ 17 18 #include <memory> 19 #include <vector> 20 21 #include "amber/result.h" 22 #include "amber/value.h" 23 #include "amber/vulkan_header.h" 24 #include "src/buffer.h" 25 #include "src/engine.h" 26 #include "src/vulkan/transfer_buffer.h" 27 28 namespace amber { 29 namespace vulkan { 30 31 class CommandBuffer; 32 class Device; 33 34 enum class DescriptorType : uint8_t { 35 kStorageBuffer = 0, 36 kUniformBuffer, 37 }; 38 39 /// Stores descriptor set and binding information for storage and uniform 40 /// buffers. 41 class BufferDescriptor { 42 public: 43 BufferDescriptor(Buffer* buffer, 44 DescriptorType type, 45 Device* device, 46 uint32_t desc_set, 47 uint32_t binding); 48 ~BufferDescriptor(); 49 GetDescriptorSet()50 uint32_t GetDescriptorSet() const { return descriptor_set_; } GetBinding()51 uint32_t GetBinding() const { return binding_; } 52 53 VkDescriptorType GetVkDescriptorType() const; 54 IsStorageBuffer()55 bool IsStorageBuffer() const { 56 return type_ == DescriptorType::kStorageBuffer; 57 } IsUniformBuffer()58 bool IsUniformBuffer() const { 59 return type_ == DescriptorType::kUniformBuffer; 60 } 61 62 Result CreateResourceIfNeeded(); 63 void RecordCopyDataToResourceIfNeeded(CommandBuffer* command); 64 Result RecordCopyDataToHost(CommandBuffer* command); 65 Result MoveResourceToBufferOutput(); 66 void UpdateDescriptorSetIfNeeded(VkDescriptorSet descriptor_set); 67 68 Result SetSizeInElements(uint32_t element_count); 69 Result AddToBuffer(const std::vector<Value>& values, uint32_t offset); 70 71 private: 72 Device* device_ = nullptr; 73 Buffer* amber_buffer_ = nullptr; 74 std::unique_ptr<TransferBuffer> transfer_buffer_; 75 76 DescriptorType type_ = DescriptorType::kStorageBuffer; 77 78 bool is_descriptor_set_update_needed_ = false; 79 uint32_t descriptor_set_ = 0; 80 uint32_t binding_ = 0; 81 }; 82 83 } // namespace vulkan 84 } // namespace amber 85 86 #endif // SRC_VULKAN_BUFFER_DESCRIPTOR_H_ 87