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// Copyright 2019 The Amber Authors.
//
// 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 SRC_VULKAN_DESCRIPTOR_H_
#define SRC_VULKAN_DESCRIPTOR_H_
#include <memory>
#include <vector>
#include "amber/result.h"
#include "amber/value.h"
#include "amber/vulkan_header.h"
#include "src/buffer.h"
#include "src/engine.h"
#include "src/vulkan/resource.h"
namespace amber {
namespace vulkan {
class CommandBuffer;
class Device;
class BufferDescriptor;
class BufferBackedDescriptor;
class SamplerDescriptor;
enum class DescriptorType : uint8_t {
kStorageBuffer = 0,
kStorageBufferDynamic,
kUniformBuffer,
kUniformBufferDynamic,
kStorageImage,
kSampledImage,
kCombinedImageSampler,
kUniformTexelBuffer,
kStorageTexelBuffer,
kSampler
};
class Descriptor {
public:
Descriptor(DescriptorType type,
Device* device,
uint32_t desc_set,
uint32_t binding);
virtual ~Descriptor();
virtual void UpdateDescriptorSetIfNeeded(VkDescriptorSet descriptor_set) = 0;
virtual Result CreateResourceIfNeeded() = 0;
virtual Result RecordCopyDataToResourceIfNeeded(CommandBuffer*) { return {}; }
virtual Result RecordCopyDataToHost(CommandBuffer*) { return {}; }
virtual Result MoveResourceToBufferOutput() { return {}; }
virtual Result SetSizeInElements(uint32_t) { return {}; }
virtual Result AddToBuffer(const std::vector<Value>&, uint32_t) { return {}; }
virtual uint32_t GetDescriptorCount() { return 1; }
virtual std::vector<uint32_t> GetDynamicOffsets() { return {}; }
virtual std::vector<VkDeviceSize> GetDescriptorOffsets() { return {}; }
virtual std::vector<VkDeviceSize> GetDescriptorRanges() { return {}; }
virtual BufferDescriptor* AsBufferDescriptor() { return nullptr; }
virtual BufferBackedDescriptor* AsBufferBackedDescriptor() { return nullptr; }
virtual SamplerDescriptor* AsSamplerDescriptor() { return nullptr; }
uint32_t GetDescriptorSet() const { return descriptor_set_; }
uint32_t GetBinding() const { return binding_; }
VkDescriptorType GetVkDescriptorType() const;
DescriptorType GetDescriptorType() const { return type_; }
bool IsStorageBuffer() const {
return type_ == DescriptorType::kStorageBuffer;
}
bool IsStorageBufferDynamic() const {
return type_ == DescriptorType::kStorageBufferDynamic;
}
bool IsUniformBuffer() const {
return type_ == DescriptorType::kUniformBuffer;
}
bool IsUniformBufferDynamic() const {
return type_ == DescriptorType::kUniformBufferDynamic;
}
bool IsUniformTexelBuffer() const {
return type_ == DescriptorType::kUniformTexelBuffer;
}
bool IsStorageTexelBuffer() const {
return type_ == DescriptorType::kStorageTexelBuffer;
}
protected:
Device* device_ = nullptr;
DescriptorType type_ = DescriptorType::kStorageBuffer;
uint32_t descriptor_set_ = 0;
uint32_t binding_ = 0;
bool is_descriptor_set_update_needed_ = false;
};
} // namespace vulkan
} // namespace amber
#endif // SRC_VULKAN_DESCRIPTOR_H_
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