kc3-lang/angle/src/libANGLE/EGLSync.h

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• Hash : 5313c8a8
  Author :
  Date : 2019-01-14T17:02:52
  

  Implement EGL_KHR_fence_sync and EGL_KHR_wait_sync
  
  EGL_KHR_fence_sync introduces the EGLSync object and associated
  create/destroy/clientWait functions.  EGL_KHR_wait_sync adds the
  serverWait function on top of that.
  
  Bug: angleproject:2466
  Change-Id: Iebb239a85c4471ea18b3c3a8a83b793af555e31d
  Reviewed-on: https://chromium-review.googlesource.com/c/1412261
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/EGLSync.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.
  //
  
  // EGLSync.h: Defines the egl::Sync classes, which support the EGL_KHR_fence_sync,
  // EGL_KHR_wait_sync and EGL 1.5 sync objects.
  
  #ifndef LIBANGLE_EGLSYNC_H_
  #define LIBANGLE_EGLSYNC_H_
  
  #include "libANGLE/Debug.h"
  #include "libANGLE/Error.h"
  #include "libANGLE/RefCountObject.h"
  
  #include "common/angleutils.h"
  
  namespace rx
  {
  class EGLImplFactory;
  class EGLSyncImpl;
  }  // namespace rx
  
  namespace egl
  {
  class Sync final : public angle::RefCountObject<Display, angle::Result>
  {
    public:
      Sync(rx::EGLImplFactory *factory, EGLenum type, const AttributeMap &attribs);
      ~Sync() override;
  
      void onDestroy(const Display *display) override;
  
      Error initialize(const Display *display);
      Error clientWait(const Display *display, EGLint flags, EGLTime timeout, EGLint *outResult);
      Error serverWait(const Display *display, EGLint flags);
      Error getStatus(const Display *display, EGLint *outStatus) const;
  
      EGLenum getType() const { return mType; }
      EGLint getCondition() const { return mCondition; }
  
    private:
      std::unique_ptr<rx::EGLSyncImpl> mFence;
  
      EGLenum mType;
      static constexpr EGLint mCondition = EGL_SYNC_PRIOR_COMMANDS_COMPLETE_KHR;
  };
  
  }  // namespace egl
  
  #endif  // LIBANGLE_FENCE_H_
  

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