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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.
#include "src/vulkan/image_descriptor.h"
#include "src/vulkan/device.h"
#include "src/vulkan/resource.h"
namespace amber {
namespace vulkan {
ImageDescriptor::ImageDescriptor(Buffer* buffer,
DescriptorType type,
Device* device,
uint32_t base_mip_level,
uint32_t desc_set,
uint32_t binding)
: BufferBackedDescriptor(buffer, type, device, desc_set, binding),
base_mip_level_(base_mip_level),
vulkan_sampler_(device) {}
ImageDescriptor::~ImageDescriptor() = default;
void ImageDescriptor::RecordCopyDataToResourceIfNeeded(CommandBuffer* command) {
transfer_image_->ImageBarrier(command, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_PIPELINE_STAGE_TRANSFER_BIT);
BufferBackedDescriptor::RecordCopyDataToResourceIfNeeded(command);
// Just do this as early as possible.
transfer_image_->ImageBarrier(command, VK_IMAGE_LAYOUT_GENERAL,
VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
}
Result ImageDescriptor::CreateResourceIfNeeded() {
if (transfer_image_) {
return Result(
"Vulkan: ImageDescriptor::CreateResourceIfNeeded() must be called "
"only when |transfer_image| is empty");
}
auto amber_buffer = getAmberBuffer();
if (amber_buffer && amber_buffer->ValuePtr()->empty())
return {};
// Default to 2D image.
VkImageType image_type = VK_IMAGE_TYPE_2D;
switch (amber_buffer->GetImageDimension()) {
case ImageDimension::k1D:
image_type = VK_IMAGE_TYPE_1D;
break;
case ImageDimension::k2D:
image_type = VK_IMAGE_TYPE_2D;
break;
case ImageDimension::k3D:
image_type = VK_IMAGE_TYPE_3D;
break;
default:
break;
}
transfer_image_ = MakeUnique<TransferImage>(
device_, *amber_buffer->GetFormat(), VK_IMAGE_ASPECT_COLOR_BIT,
image_type, amber_buffer->GetWidth(), amber_buffer->GetHeight(),
amber_buffer->GetDepth(), amber_buffer->GetMipLevels(), base_mip_level_,
VK_REMAINING_MIP_LEVELS);
VkImageUsageFlags usage =
VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
if (type_ == DescriptorType::kStorageImage) {
usage |= VK_IMAGE_USAGE_STORAGE_BIT;
} else {
assert(type_ == DescriptorType::kSampledImage ||
type_ == DescriptorType::kCombinedImageSampler);
usage |= VK_IMAGE_USAGE_SAMPLED_BIT;
}
Result r = transfer_image_->Initialize(usage);
if (!r.IsSuccess())
return r;
if (amber_sampler_) {
r = vulkan_sampler_.CreateSampler(amber_sampler_);
if (!r.IsSuccess())
return r;
}
is_descriptor_set_update_needed_ = true;
return {};
}
Result ImageDescriptor::RecordCopyDataToHost(CommandBuffer* command) {
transfer_image_->ImageBarrier(command, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
VK_PIPELINE_STAGE_TRANSFER_BIT);
BufferBackedDescriptor::RecordCopyDataToHost(command);
return {};
}
Result ImageDescriptor::MoveResourceToBufferOutput() {
Result r = BufferBackedDescriptor::MoveResourceToBufferOutput();
transfer_image_ = nullptr;
return r;
}
void ImageDescriptor::UpdateDescriptorSetIfNeeded(
VkDescriptorSet descriptor_set) {
if (!is_descriptor_set_update_needed_)
return;
// Always use general layout.
VkImageLayout layout = VK_IMAGE_LAYOUT_GENERAL;
VkDescriptorImageInfo image_info = {vulkan_sampler_.GetVkSampler(),
transfer_image_->GetVkImageView(),
layout};
VkWriteDescriptorSet write = VkWriteDescriptorSet();
write.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
write.dstSet = descriptor_set;
write.dstBinding = binding_;
write.dstArrayElement = 0;
write.descriptorCount = 1;
write.descriptorType = GetVkDescriptorType();
write.pImageInfo = &image_info;
device_->GetPtrs()->vkUpdateDescriptorSets(device_->GetVkDevice(), 1, &write,
0, nullptr);
is_descriptor_set_update_needed_ = false;
}
} // namespace vulkan
} // namespace amber
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