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//
// Copyright 2016 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// RenderTargetVk:
// Wrapper around a Vulkan renderable resource, using an ImageView.
//
#include "libANGLE/renderer/vulkan/RenderTargetVk.h"
#include "libANGLE/renderer/vulkan/CommandGraph.h"
#include "libANGLE/renderer/vulkan/ContextVk.h"
#include "libANGLE/renderer/vulkan/TextureVk.h"
#include "libANGLE/renderer/vulkan/vk_format_utils.h"
#include "libANGLE/renderer/vulkan/vk_helpers.h"
namespace rx
{
RenderTargetVk::RenderTargetVk()
: mImage(nullptr), mImageView(nullptr), mLevelIndex(0), mLayerIndex(0)
{}
RenderTargetVk::~RenderTargetVk() {}
RenderTargetVk::RenderTargetVk(RenderTargetVk &&other)
: mImage(other.mImage),
mImageView(other.mImageView),
mLevelIndex(other.mLevelIndex),
mLayerIndex(other.mLayerIndex)
{}
void RenderTargetVk::init(vk::ImageHelper *image,
const vk::ImageView *imageView,
uint32_t levelIndex,
uint32_t layerIndex)
{
mImage = image;
mImageView = imageView;
mLevelIndex = levelIndex;
mLayerIndex = layerIndex;
}
void RenderTargetVk::reset()
{
mImage = nullptr;
mImageView = nullptr;
mLevelIndex = 0;
mLayerIndex = 0;
}
angle::Result RenderTargetVk::onColorDraw(ContextVk *contextVk,
vk::FramebufferHelper *framebufferVk,
vk::CommandBuffer *commandBuffer)
{
ASSERT(commandBuffer->valid());
ASSERT(!mImage->getFormat().imageFormat().hasDepthOrStencilBits());
// TODO(jmadill): Use automatic layout transition. http://anglebug.com/2361
mImage->changeLayout(VK_IMAGE_ASPECT_COLOR_BIT, vk::ImageLayout::ColorAttachment,
commandBuffer);
// Set up dependencies between the RT resource and the Framebuffer.
mImage->addWriteDependency(contextVk, framebufferVk);
return angle::Result::Continue;
}
angle::Result RenderTargetVk::onDepthStencilDraw(ContextVk *contextVk,
vk::FramebufferHelper *framebufferVk,
vk::CommandBuffer *commandBuffer)
{
ASSERT(commandBuffer->valid());
ASSERT(mImage->getFormat().imageFormat().hasDepthOrStencilBits());
// TODO(jmadill): Use automatic layout transition. http://anglebug.com/2361
const angle::Format &format = mImage->getFormat().imageFormat();
VkImageAspectFlags aspectFlags = vk::GetDepthStencilAspectFlags(format);
mImage->changeLayout(aspectFlags, vk::ImageLayout::DepthStencilAttachment, commandBuffer);
// Set up dependencies between the RT resource and the Framebuffer.
mImage->addWriteDependency(contextVk, framebufferVk);
return angle::Result::Continue;
}
vk::ImageHelper &RenderTargetVk::getImage()
{
ASSERT(mImage && mImage->valid());
return *mImage;
}
const vk::ImageHelper &RenderTargetVk::getImage() const
{
ASSERT(mImage && mImage->valid());
return *mImage;
}
const vk::ImageView *RenderTargetVk::getDrawImageView() const
{
ASSERT(mImageView && mImageView->valid());
return mImageView;
}
const vk::ImageView *RenderTargetVk::getReadImageView() const
{
return getDrawImageView();
}
const vk::Format &RenderTargetVk::getImageFormat() const
{
ASSERT(mImage && mImage->valid());
return mImage->getFormat();
}
gl::Extents RenderTargetVk::getExtents() const
{
ASSERT(mImage && mImage->valid());
return mImage->getLevelExtents2D(static_cast<uint32_t>(mLevelIndex));
}
void RenderTargetVk::updateSwapchainImage(vk::ImageHelper *image, const vk::ImageView *imageView)
{
ASSERT(image && image->valid() && imageView && imageView->valid());
mImage = image;
mImageView = imageView;
}
vk::ImageHelper *RenderTargetVk::getImageForRead(ContextVk *contextVk,
vk::CommandGraphResource *readingResource,
vk::ImageLayout layout,
vk::CommandBuffer *commandBuffer)
{
ASSERT(mImage && mImage->valid());
// TODO(jmadill): Better simultaneous resource access. http://anglebug.com/2679
//
// A better alternative would be:
//
// if (mImage->isLayoutChangeNecessary(layout)
// {
// vk::CommandBuffer *srcLayoutChange;
// ANGLE_TRY(mImage->recordCommands(contextVk, &srcLayoutChange));
// mImage->changeLayout(mImage->getAspectFlags(), layout, srcLayoutChange);
// }
// mImage->addReadDependency(readingResource);
//
// I.e. the transition should happen on a node generated from mImage itself.
// However, this needs context to be available here, or all call sites changed
// to perform the layout transition and set the dependency.
mImage->addWriteDependency(contextVk, readingResource);
mImage->changeLayout(mImage->getAspectFlags(), layout, commandBuffer);
return mImage;
}
vk::ImageHelper *RenderTargetVk::getImageForWrite(ContextVk *contextVk,
vk::CommandGraphResource *writingResource) const
{
ASSERT(mImage && mImage->valid());
mImage->addWriteDependency(contextVk, writingResource);
return mImage;
}
angle::Result RenderTargetVk::flushStagedUpdates(ContextVk *contextVk)
{
ASSERT(mImage->valid());
if (!mImage->hasStagedUpdates())
return angle::Result::Continue;
vk::CommandBuffer *commandBuffer;
ANGLE_TRY(mImage->recordCommands(contextVk, &commandBuffer));
return mImage->flushStagedUpdates(contextVk, mLevelIndex, mLevelIndex + 1, mLayerIndex,
mLayerIndex + 1, commandBuffer);
}
} // namespace rx