kc3-lang/angle/src/libANGLE/renderer/vulkan/mac/IOSurfaceSurfaceVkMac.h

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• Hash : 806ba566
  Author :
  Date : 2019-12-12T13:02:01
  

  Extend ANGLE_iosurface_client_buffer to Vulkan backend for Swangle
  
  Implement an IOSurface-backed pBuffer surface for the Vulkan backend
  on Mac, through SwANGLE. ANGLE will pass a raw pointer to Swiftshader
  and handle locking/unlocking the IOSurface.
  
  Bug: chromium:1015454
  Change-Id: Ia3ead55334736003d405b54ba8dcc7701706fbb2
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1965434
  Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/vulkan/mac/IOSurfaceSurfaceVkMac.h

• //
  // Copyright 2020 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.
  //
  // IOSurfaceSurfaceVkMac.h:
  //    Subclasses SurfaceVk for the Mac platform to implement PBuffers using an IOSurface
  //
  
  #ifndef LIBANGLE_RENDERER_VULKAN_MAC_IOSURFACESURFACEVKMAC_H_
  #define LIBANGLE_RENDERER_VULKAN_MAC_IOSURFACESURFACEVKMAC_H_
  
  #include "libANGLE/renderer/vulkan/SurfaceVk.h"
  
  struct __IOSurface;
  typedef __IOSurface *IOSurfaceRef;
  
  namespace egl
  {
  class AttributeMap;
  }  // namespace egl
  
  namespace rx
  {
  
  class IOSurfaceSurfaceVkMac : public OffscreenSurfaceVk
  {
    public:
      IOSurfaceSurfaceVkMac(const egl::SurfaceState &state,
                            EGLClientBuffer buffer,
                            const egl::AttributeMap &attribs);
      ~IOSurfaceSurfaceVkMac() override;
  
      egl::Error initialize(const egl::Display *display) override;
  
      egl::Error unMakeCurrent(const gl::Context *context) override;
  
      egl::Error bindTexImage(const gl::Context *context,
                              gl::Texture *texture,
                              EGLint buffer) override;
      egl::Error releaseTexImage(const gl::Context *context, EGLint buffer) override;
  
      static bool ValidateAttributes(const DisplayVk *displayVk,
                                     EGLClientBuffer buffer,
                                     const egl::AttributeMap &attribs);
  
    protected:
      angle::Result initializeImpl(DisplayVk *displayVk) override;
  
    private:
      IOSurfaceRef mIOSurface;
  
      int mPlane;
      int mFormatIndex;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_VULKAN_MAC_IOSURFACESURFACEVKMAC_H_
  

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