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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_FRAME_BUFFER_H_
#define SRC_VULKAN_FRAME_BUFFER_H_
#include <memory>
#include <vector>
#include "src/pipeline.h"
#include "src/vulkan/transfer_image.h"
namespace amber {
namespace vulkan {
class CommandBuffer;
class Device;
/// Wrapper around a Vulkan FrameBuffer object.
class FrameBuffer {
public:
FrameBuffer(
Device* device,
const std::vector<const amber::Pipeline::BufferInfo*>& color_attachments,
uint32_t width,
uint32_t height);
~FrameBuffer();
Result Initialize(VkRenderPass render_pass, const Format& depth_format);
void ChangeFrameToDrawLayout(CommandBuffer* command);
void ChangeFrameToProbeLayout(CommandBuffer* command);
void ChangeFrameToWriteLayout(CommandBuffer* command);
VkFramebuffer GetVkFrameBuffer() const { return frame_; }
const void* GetColorBufferPtr(size_t idx) const {
return color_images_[idx]->HostAccessibleMemoryPtr();
}
// Only record the command for copying the image that backs this
// framebuffer to the host accessible buffer. The actual submission
// of the command must be done later.
void TransferColorImagesToHost(CommandBuffer* command);
void TransferColorImagesToDevice(CommandBuffer* command);
void CopyImagesToBuffers();
void CopyBuffersToImages();
uint32_t GetWidth() const { return width_; }
uint32_t GetHeight() const { return height_; }
private:
void ChangeFrameLayout(CommandBuffer* command,
VkImageLayout color_layout,
VkPipelineStageFlags color_stage,
VkImageLayout depth_layout,
VkPipelineStageFlags depth_stage);
Device* device_ = nullptr;
std::vector<const amber::Pipeline::BufferInfo*> color_attachments_;
VkFramebuffer frame_ = VK_NULL_HANDLE;
std::vector<std::unique_ptr<TransferImage>> color_images_;
std::unique_ptr<TransferImage> depth_image_;
uint32_t width_ = 0;
uint32_t height_ = 0;
uint32_t depth_ = 1;
};
} // namespace vulkan
} // namespace amber
#endif // SRC_VULKAN_FRAME_BUFFER_H_
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