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

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• Hash : 078da78f
  Author :
  Date : 2022-03-17T13:06:58
  

  Vulkan: Support GL_EXT_EGL_image_storage extension
  
  This extension provides a mechanism for creating texture objects that
  are both EGLImage targets and immutable and removes the possibility of
  implicit orphaning. EGL images created from external sources now
  support types other than 2D. Tests covering the new feature were added
  to ImageTest.cpp.
  
  Bug: angleproject:6346
  Change-Id: Id3e328f352deb1af47062be232384229a8b1c341
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3530489
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: mohan maiya <m.maiya@samsung.com>
  

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• src/libANGLE/renderer/vulkan/ImageVk.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.
  //
  // ImageVk.cpp:
  //    Implements the class methods for ImageVk.
  //
  
  #include "libANGLE/renderer/vulkan/ImageVk.h"
  
  #include "common/debug.h"
  #include "libANGLE/Context.h"
  #include "libANGLE/Display.h"
  #include "libANGLE/renderer/vulkan/ContextVk.h"
  #include "libANGLE/renderer/vulkan/DisplayVk.h"
  #include "libANGLE/renderer/vulkan/RenderbufferVk.h"
  #include "libANGLE/renderer/vulkan/TextureVk.h"
  #include "libANGLE/renderer/vulkan/vk_utils.h"
  
  namespace rx
  {
  
  ImageVk::ImageVk(const egl::ImageState &state, const gl::Context *context)
      : ImageImpl(state), mOwnsImage(false), mImage(nullptr), mContext(context)
  {}
  
  ImageVk::~ImageVk() {}
  
  void ImageVk::onDestroy(const egl::Display *display)
  {
      DisplayVk *displayVk = vk::GetImpl(display);
      RendererVk *renderer = displayVk->getRenderer();
  
      if (mImage != nullptr && mOwnsImage)
      {
          // TODO: We need to handle the case that EGLImage used in two context that aren't shared.
          // https://issuetracker.google.com/169868803
          mImage->releaseImage(renderer);
          mImage->releaseStagedUpdates(renderer);
          SafeDelete(mImage);
      }
      else if (egl::IsExternalImageTarget(mState.target))
      {
          ASSERT(mState.source != nullptr);
          ExternalImageSiblingVk *externalImageSibling =
              GetImplAs<ExternalImageSiblingVk>(GetAs<egl::ExternalImageSibling>(mState.source));
          externalImageSibling->release(renderer);
          mImage = nullptr;
  
          // This is called as a special case where resources may be allocated by the caller, without
          // the caller ever issuing a draw command to free them. Specifically, SurfaceFlinger
          // optimistically allocates EGLImages that it may never draw to.
          renderer->cleanupCompletedCommandsGarbage();
      }
  }
  
  egl::Error ImageVk::initialize(const egl::Display *display)
  {
      if (egl::IsTextureTarget(mState.target))
      {
          ASSERT(mContext != nullptr);
          ContextVk *contextVk = vk::GetImpl(mContext);
          TextureVk *textureVk = GetImplAs<TextureVk>(GetAs<gl::Texture>(mState.source));
  
          // Make sure the texture uses renderable format
          ANGLE_TRY(ResultToEGL(textureVk->ensureRenderable(contextVk)));
  
          // Make sure the texture has created its backing storage
          ANGLE_TRY(ResultToEGL(
              textureVk->ensureImageInitialized(contextVk, ImageMipLevels::EnabledLevels)));
  
          mImage = &textureVk->getImage();
  
          // The staging buffer for a texture source should already be initialized
  
          mOwnsImage = false;
      }
      else
      {
          if (egl::IsRenderbufferTarget(mState.target))
          {
              RenderbufferVk *renderbufferVk =
                  GetImplAs<RenderbufferVk>(GetAs<gl::Renderbuffer>(mState.source));
              mImage = renderbufferVk->getImage();
  
              ASSERT(mContext != nullptr);
          }
          else if (egl::IsExternalImageTarget(mState.target))
          {
              const ExternalImageSiblingVk *externalImageSibling =
                  GetImplAs<ExternalImageSiblingVk>(GetAs<egl::ExternalImageSibling>(mState.source));
              mImage = externalImageSibling->getImage();
  
              ASSERT(mContext == nullptr);
          }
          else
          {
              UNREACHABLE();
              return egl::EglBadAccess();
          }
  
          mOwnsImage = false;
      }
  
      // mContext is no longer needed, make sure it's not used by accident.
      mContext = nullptr;
  
      return egl::NoError();
  }
  
  angle::Result ImageVk::orphan(const gl::Context *context, egl::ImageSibling *sibling)
  {
      if (sibling == mState.source)
      {
          if (egl::IsTextureTarget(mState.target))
          {
              TextureVk *textureVk = GetImplAs<TextureVk>(GetAs<gl::Texture>(mState.source));
              ASSERT(mImage == &textureVk->getImage());
              textureVk->releaseOwnershipOfImage(context);
              mOwnsImage = true;
          }
          else if (egl::IsRenderbufferTarget(mState.target))
          {
              RenderbufferVk *renderbufferVk =
                  GetImplAs<RenderbufferVk>(GetAs<gl::Renderbuffer>(mState.source));
              ASSERT(mImage == renderbufferVk->getImage());
              renderbufferVk->releaseOwnershipOfImage(context);
              mOwnsImage = true;
          }
          else
          {
              ANGLE_VK_UNREACHABLE(vk::GetImpl(context));
              return angle::Result::Stop;
          }
      }
  
      // Grab a fence from the releasing context to know when the image is no longer used
      ASSERT(context != nullptr);
      ContextVk *contextVk = vk::GetImpl(context);
  
      // Flush the context to make sure the fence has been submitted.
      return contextVk->flushImpl(nullptr, RenderPassClosureReason::ImageOrphan);
  }
  
  egl::Error ImageVk::exportVkImage(void *vkImage, void *vkImageCreateInfo)
  {
      *reinterpret_cast<VkImage *>(vkImage) = mImage->getImage().getHandle();
      auto *info = reinterpret_cast<VkImageCreateInfo *>(vkImageCreateInfo);
      *info      = mImage->getVkImageCreateInfo();
      return egl::NoError();
  }
  
  gl::TextureType ImageVk::getImageTextureType() const
  {
      return mState.imageIndex.getType();
  }
  
  gl::LevelIndex ImageVk::getImageLevel() const
  {
      return gl::LevelIndex(mState.imageIndex.getLevelIndex());
  }
  
  uint32_t ImageVk::getImageLayer() const
  {
      return mState.imageIndex.hasLayer() ? mState.imageIndex.getLayerIndex() : 0;
  }
  
  }  // namespace rx
  

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