kc3-lang/angle/src/libANGLE/renderer/vulkan/MemoryObjectVk.h

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• Hash : c4197713
  Author :
  Date : 2019-06-03T19:23:02
  

  Implement glImportMemoryZirconHandle & glImportSemaphoreZirconHandle
  
  Implement import of fuchsia external objects passed by zircon handle. This
  works exactly the same as with file descriptors.
  
  Bug: angleproject:3492
  Change-Id: I4d46917dfc5902f00c94550158a9f8073097f0a4
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1642334
  Commit-Queue: Michael Spang <spang@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/vulkan/MemoryObjectVk.h

• // Copyright 2019 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.
  //
  // MemoryObjectVk.h: Defines the class interface for MemoryObjectVk,
  // implementing MemoryObjectImpl.
  
  #ifndef LIBANGLE_RENDERER_VULKAN_MEMORYOBJECTVK_H_
  #define LIBANGLE_RENDERER_VULKAN_MEMORYOBJECTVK_H_
  
  #include "libANGLE/renderer/MemoryObjectImpl.h"
  #include "libANGLE/renderer/vulkan/vk_helpers.h"
  #include "libANGLE/renderer/vulkan/vk_wrapper.h"
  
  namespace rx
  {
  
  class MemoryObjectVk : public MemoryObjectImpl
  {
    public:
      MemoryObjectVk();
      ~MemoryObjectVk() override;
  
      void onDestroy(const gl::Context *context) override;
  
      angle::Result importFd(gl::Context *context,
                             GLuint64 size,
                             gl::HandleType handleType,
                             GLint fd) override;
  
      angle::Result importZirconHandle(gl::Context *context,
                                       GLuint64 size,
                                       gl::HandleType handleType,
                                       GLuint handle) override;
  
      angle::Result createImage(ContextVk *context,
                                gl::TextureType type,
                                size_t levels,
                                GLenum internalFormat,
                                const gl::Extents &size,
                                GLuint64 offset,
                                vk::ImageHelper *image);
  
    private:
      static constexpr int kInvalidFd = -1;
      angle::Result importOpaqueFd(ContextVk *contextVk, GLuint64 size, GLint fd);
      angle::Result importZirconVmo(ContextVk *contextVk, GLuint64 size, GLuint handle);
  
      GLuint64 mSize             = 0;
      gl::HandleType mHandleType = gl::HandleType::InvalidEnum;
      int mFd                    = kInvalidFd;
  
      zx_handle_t mZirconHandle = ZX_HANDLE_INVALID;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_VULKAN_MEMORYOBJECTVK_H_
  

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