kc3-lang/angle/src/libANGLE/renderer/vulkan/RenderbufferVk.cpp

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• Hash : 0631e19b
  Author :
  Date : 2019-04-18T16:09:12
  

  Vulkan: Rename Vulkan "Texture" format to "Image"
  
  Also adds some comments to vk_format_utils.h.
  
  Bug: angleproject:3372
  Change-Id: I529b9b189e4cdfd400c3c981a47139727d9954ab
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1565062
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/vulkan/RenderbufferVk.cpp

• //
  // 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.
  //
  // RenderbufferVk.cpp:
  //    Implements the class methods for RenderbufferVk.
  //
  
  #include "libANGLE/renderer/vulkan/RenderbufferVk.h"
  
  #include "libANGLE/Context.h"
  #include "libANGLE/Image.h"
  #include "libANGLE/renderer/vulkan/ContextVk.h"
  #include "libANGLE/renderer/vulkan/ImageVk.h"
  #include "libANGLE/renderer/vulkan/RendererVk.h"
  
  namespace rx
  {
  RenderbufferVk::RenderbufferVk(const gl::RenderbufferState &state)
      : RenderbufferImpl(state), mOwnsImage(false), mImage(nullptr)
  {}
  
  RenderbufferVk::~RenderbufferVk() {}
  
  void RenderbufferVk::onDestroy(const gl::Context *context)
  {
      ContextVk *contextVk = vk::GetImpl(context);
      RendererVk *renderer = contextVk->getRenderer();
      releaseAndDeleteImage(context, renderer);
  }
  
  angle::Result RenderbufferVk::setStorage(const gl::Context *context,
                                           GLenum internalformat,
                                           size_t width,
                                           size_t height)
  {
      ContextVk *contextVk       = vk::GetImpl(context);
      RendererVk *renderer       = contextVk->getRenderer();
      const vk::Format &vkFormat = renderer->getFormat(internalformat);
  
      if (!mOwnsImage)
      {
          releaseAndDeleteImage(context, renderer);
      }
  
      if (mImage != nullptr && mImage->valid())
      {
          // Check against the state if we need to recreate the storage.
          if (internalformat != mState.getFormat().info->internalFormat ||
              static_cast<GLsizei>(width) != mState.getWidth() ||
              static_cast<GLsizei>(height) != mState.getHeight())
          {
              releaseImage(context, renderer);
          }
      }
  
      if ((mImage == nullptr || !mImage->valid()) && (width != 0 && height != 0))
      {
          if (mImage == nullptr)
          {
              mImage     = new vk::ImageHelper();
              mOwnsImage = true;
          }
  
          const angle::Format &textureFormat = vkFormat.imageFormat();
          bool isDepthOrStencilFormat = textureFormat.depthBits > 0 || textureFormat.stencilBits > 0;
          const VkImageUsageFlags usage =
              VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
              VK_IMAGE_USAGE_SAMPLED_BIT |
              (textureFormat.redBits > 0 ? VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT : 0) |
              (isDepthOrStencilFormat ? VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT : 0);
  
          gl::Extents extents(static_cast<int>(width), static_cast<int>(height), 1);
          ANGLE_TRY(mImage->init(contextVk, gl::TextureType::_2D, extents, vkFormat, 1, usage, 1, 1));
  
          VkMemoryPropertyFlags flags = VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
          ANGLE_TRY(mImage->initMemory(contextVk, renderer->getMemoryProperties(), flags));
  
          VkImageAspectFlags aspect = vk::GetFormatAspectFlags(textureFormat);
  
          // Note that LUMA textures are not color-renderable, so a read-view with swizzle is not
          // needed.
          ANGLE_TRY(mImage->initImageView(contextVk, gl::TextureType::_2D, aspect, gl::SwizzleState(),
                                          &mImageView, 0, 1));
  
          // Clear the renderbuffer if it has emulated channels.
          ANGLE_TRY(mImage->clearIfEmulatedFormat(vk::GetImpl(context), gl::ImageIndex::Make2D(0),
                                                  vkFormat));
  
          mRenderTarget.init(mImage, &mImageView, 0, 0, nullptr);
      }
  
      return angle::Result::Continue;
  }
  
  angle::Result RenderbufferVk::setStorageMultisample(const gl::Context *context,
                                                      size_t samples,
                                                      GLenum internalformat,
                                                      size_t width,
                                                      size_t height)
  {
      ANGLE_VK_UNREACHABLE(vk::GetImpl(context));
      return angle::Result::Stop;
  }
  
  angle::Result RenderbufferVk::setStorageEGLImageTarget(const gl::Context *context,
                                                         egl::Image *image)
  {
      ContextVk *contextVk = vk::GetImpl(context);
      RendererVk *renderer = contextVk->getRenderer();
  
      releaseAndDeleteImage(context, renderer);
  
      ImageVk *imageVk = vk::GetImpl(image);
      mImage           = imageVk->getImage();
      mOwnsImage       = false;
  
      const vk::Format &vkFormat = renderer->getFormat(image->getFormat().info->sizedInternalFormat);
      const angle::Format &textureFormat = vkFormat.imageFormat();
  
      VkImageAspectFlags aspect = vk::GetFormatAspectFlags(textureFormat);
  
      // Transfer the image to this queue if needed
      uint32_t rendererQueueFamilyIndex = contextVk->getRenderer()->getQueueFamilyIndex();
      if (mImage->isQueueChangeNeccesary(rendererQueueFamilyIndex))
      {
          vk::CommandBuffer *commandBuffer = nullptr;
          ANGLE_TRY(mImage->recordCommands(contextVk, &commandBuffer));
          mImage->changeLayoutAndQueue(aspect, vk::ImageLayout::ColorAttachment,
                                       rendererQueueFamilyIndex, commandBuffer);
      }
  
      ANGLE_TRY(mImage->initLayerImageView(contextVk, imageVk->getImageTextureType(), aspect,
                                           gl::SwizzleState(), &mImageView, imageVk->getImageLevel(),
                                           1, imageVk->getImageLayer(), 1));
  
      mRenderTarget.init(mImage, &mImageView, imageVk->getImageLevel(), imageVk->getImageLayer(),
                         nullptr);
  
      return angle::Result::Continue;
  }
  
  angle::Result RenderbufferVk::getAttachmentRenderTarget(const gl::Context *context,
                                                          GLenum binding,
                                                          const gl::ImageIndex &imageIndex,
                                                          FramebufferAttachmentRenderTarget **rtOut)
  {
      ASSERT(mImage && mImage->valid());
      *rtOut = &mRenderTarget;
      return angle::Result::Continue;
  }
  
  angle::Result RenderbufferVk::initializeContents(const gl::Context *context,
                                                   const gl::ImageIndex &imageIndex)
  {
      mImage->stageSubresourceRobustClear(imageIndex, mImage->getFormat().angleFormat());
      return mImage->flushAllStagedUpdates(vk::GetImpl(context));
  }
  
  void RenderbufferVk::releaseOwnershipOfImage(const gl::Context *context)
  {
      ContextVk *contextVk = vk::GetImpl(context);
      RendererVk *renderer = contextVk->getRenderer();
  
      mOwnsImage = false;
      releaseAndDeleteImage(context, renderer);
  }
  
  void RenderbufferVk::releaseAndDeleteImage(const gl::Context *context, RendererVk *renderer)
  {
      releaseImage(context, renderer);
      SafeDelete(mImage);
  }
  
  void RenderbufferVk::releaseImage(const gl::Context *context, RendererVk *renderer)
  {
      if (mImage && mOwnsImage)
      {
          mImage->releaseImage(renderer);
          mImage->releaseStagingBuffer(renderer);
      }
      else
      {
          mImage = nullptr;
      }
  
      renderer->releaseObject(renderer->getCurrentQueueSerial(), &mImageView);
  }
  
  }  // namespace rx
  

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