kc3-lang/angle/src/libANGLE/renderer/vulkan/android/AHBFunctions.h

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• Hash : 122a1cc5
  Author :
  Date : 2021-01-26T20:06:24
  

  Fix several vulkan backend problem on Android.
  
  * Load AHardwarebuffer API dynamically, so vulkan backend can be
    built with old NDK, but can work with newer android releases.
  * Do not link with libvulkan on android.
  * Expose EGL_ANDROID_get_native_client_buffer extension with vulkan
    backend.
  
  Bug: chromium:1170339
  Change-Id: Idf7f6867a86ae40ba6d57a86e419c610ba404ba8
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2653506
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Peng Huang <penghuang@chromium.org>
  

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• src/libANGLE/renderer/vulkan/android/AHBFunctions.h

• //
  // Copyright 2021 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.
  //
  
  #ifndef LIBANGLE_RENDERER_VULKAN_ANDROID_AHBFUNCTIONS_H_
  #define LIBANGLE_RENDERER_VULKAN_ANDROID_AHBFUNCTIONS_H_
  
  #include <android/hardware_buffer.h>
  
  namespace rx
  {
  
  class AHBFunctions
  {
    public:
      AHBFunctions();
      ~AHBFunctions();
  
      void acquire(AHardwareBuffer *buffer) const { mAcquireFn(buffer); }
      void describe(const AHardwareBuffer *buffer, AHardwareBuffer_Desc *outDesc) const
      {
          mDescribeFn(buffer, outDesc);
      }
      void release(AHardwareBuffer *buffer) const { mReleaseFn(buffer); }
  
      bool valid() const { return mAcquireFn && mDescribeFn && mReleaseFn; }
  
    private:
      using PFN_AHARDWAREBUFFER_acquire  = void (*)(AHardwareBuffer *buffer);
      using PFN_AHARDWAREBUFFER_describe = void (*)(const AHardwareBuffer *buffer,
                                                    AHardwareBuffer_Desc *outDesc);
      using PFN_AHARDWAREBUFFER_release  = void (*)(AHardwareBuffer *buffer);
  
      PFN_AHARDWAREBUFFER_acquire mAcquireFn   = nullptr;
      PFN_AHARDWAREBUFFER_describe mDescribeFn = nullptr;
      PFN_AHARDWAREBUFFER_release mReleaseFn   = nullptr;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_VULKAN_ANDROID_AHBFUNCTIONS_H_
  

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