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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.
#include "src/vulkan/frame_buffer.h"
#include <cassert>
#include <limits>
#include <vector>
#include "src/make_unique.h"
namespace amber {
namespace vulkan {
FrameBuffer::FrameBuffer(VkDevice device, uint32_t width, uint32_t height)
: device_(device), width_(width), height_(height) {}
FrameBuffer::~FrameBuffer() = default;
Result FrameBuffer::Initialize(
VkRenderPass render_pass,
VkFormat color_format,
VkFormat depth_format,
const VkPhysicalDeviceMemoryProperties& properties) {
std::vector<VkImageView> attachments;
if (color_format != VK_FORMAT_UNDEFINED) {
color_image_ = MakeUnique<Image>(device_, color_format, width_, height_,
depth_, properties);
Result r = color_image_->Initialize(VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT);
if (!r.IsSuccess())
return r;
attachments.push_back(color_image_->GetVkImageView());
}
if (depth_format != VK_FORMAT_UNDEFINED) {
depth_image_ = MakeUnique<Image>(device_, depth_format, width_, height_,
depth_, properties);
Result r =
depth_image_->Initialize(VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT);
if (!r.IsSuccess())
return r;
attachments.push_back(depth_image_->GetVkImageView());
}
VkFramebufferCreateInfo frame_buffer_info = {};
frame_buffer_info.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
frame_buffer_info.renderPass = render_pass;
frame_buffer_info.attachmentCount = static_cast<uint32_t>(attachments.size());
frame_buffer_info.pAttachments = attachments.data();
frame_buffer_info.width = width_;
frame_buffer_info.height = height_;
frame_buffer_info.layers = 1;
if (vkCreateFramebuffer(device_, &frame_buffer_info, nullptr, &frame_) !=
VK_SUCCESS) {
return Result("Vulkan::Calling vkCreateFramebuffer Fail");
}
return {};
}
Result FrameBuffer::ChangeFrameImageLayout(VkCommandBuffer command,
FrameImageState layout) {
if (layout == FrameImageState::kInit) {
return Result(
"FrameBuffer::ChangeFrameImageLayout new layout cannot be kInit");
}
if (layout == frame_image_layout_)
return {};
if (layout == FrameImageState::kProbe) {
if (frame_image_layout_ != FrameImageState::kClearOrDraw) {
return Result(
"FrameBuffer::ChangeFrameImageLayout new layout cannot be kProbe "
"from kInit");
}
if (color_image_) {
color_image_->ChangeLayout(command,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
VK_PIPELINE_STAGE_TRANSFER_BIT);
}
if (depth_image_) {
depth_image_->ChangeLayout(
command, VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
VK_PIPELINE_STAGE_TRANSFER_BIT);
}
frame_image_layout_ = FrameImageState::kProbe;
return {};
}
VkImageLayout old_layout = frame_image_layout_ == FrameImageState::kInit
? VK_IMAGE_LAYOUT_UNDEFINED
: VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL;
if (color_image_) {
color_image_->ChangeLayout(command, old_layout,
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT);
}
if (depth_image_) {
depth_image_->ChangeLayout(command, old_layout,
VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT);
}
frame_image_layout_ = FrameImageState::kClearOrDraw;
return {};
}
void FrameBuffer::Shutdown() {
vkDestroyFramebuffer(device_, frame_, nullptr);
if (color_image_)
color_image_->Shutdown();
if (depth_image_)
depth_image_->Shutdown();
}
} // namespace vulkan
} // namespace amber
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