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// Copyright 2018 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_ENGINE_VULKAN_H_
#define SRC_VULKAN_ENGINE_VULKAN_H_
#include <map>
#include <memory>
#include <string>
#include <unordered_map>
#include <utility>
#include <vector>
#include "amber/vulkan_header.h"
#include "src/cast_hash.h"
#include "src/engine.h"
#include "src/pipeline.h"
#include "src/vulkan/buffer_descriptor.h"
#include "src/vulkan/command_pool.h"
#include "src/vulkan/device.h"
#include "src/vulkan/pipeline.h"
#include "src/vulkan/vertex_buffer.h"
namespace amber {
namespace vulkan {
/// Engine implementation based on Vulkan.
class EngineVulkan : public Engine {
public:
EngineVulkan();
~EngineVulkan() override;
// Engine
Result Initialize(EngineConfig* config,
Delegate* delegate,
const std::vector<std::string>& features,
const std::vector<std::string>& instance_extensions,
const std::vector<std::string>& device_extensions) override;
Result CreatePipeline(amber::Pipeline* type) override;
Result DoClearColor(const ClearColorCommand* cmd) override;
Result DoClearStencil(const ClearStencilCommand* cmd) override;
Result DoClearDepth(const ClearDepthCommand* cmd) override;
Result DoClear(const ClearCommand* cmd) override;
Result DoDrawRect(const DrawRectCommand* cmd) override;
Result DoDrawGrid(const DrawGridCommand* cmd) override;
Result DoDrawArrays(const DrawArraysCommand* cmd) override;
Result DoCompute(const ComputeCommand* cmd) override;
Result DoEntryPoint(const EntryPointCommand* cmd) override;
Result DoPatchParameterVertices(
const PatchParameterVerticesCommand* cmd) override;
Result DoBuffer(const BufferCommand* cmd) override;
private:
struct PipelineInfo {
std::unique_ptr<Pipeline> vk_pipeline;
std::unique_ptr<VertexBuffer> vertex_buffer;
struct ShaderInfo {
VkShaderModule shader;
std::unique_ptr<std::vector<VkSpecializationMapEntry>>
specialization_entries;
std::unique_ptr<std::vector<uint32_t>> specialization_data;
std::unique_ptr<VkSpecializationInfo> specialization_info;
uint32_t required_subgroup_size;
VkPipelineShaderStageCreateFlags create_flags;
};
std::unordered_map<ShaderType, ShaderInfo, CastHash<ShaderType>>
shader_info;
};
Result GetVkShaderStageInfo(
amber::Pipeline* pipeline,
std::vector<VkPipelineShaderStageCreateInfo>* out);
Result SetShader(amber::Pipeline* pipeline,
const amber::Pipeline::ShaderInfo& shader);
std::unique_ptr<Device> device_;
std::unique_ptr<CommandPool> pool_;
std::map<amber::Pipeline*, PipelineInfo> pipeline_map_;
std::map<std::string, VkShaderModule> shaders_;
};
} // namespace vulkan
} // namespace amber
#endif // SRC_VULKAN_ENGINE_VULKAN_H_
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