kc3-lang/angle/src/libANGLE/renderer/gl/SyncGL.cpp

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• Author : Shahbaz Youssefi
  Date : 2019-01-14 17:02:52
  Hash : 5313c8a8
  Message : 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>

• src/libANGLE/renderer/gl/SyncGL.cpp

• //
  // Copyright 2015 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.
  //
  
  // SyncGL.cpp: Implements the class methods for SyncGL.
  
  #include "libANGLE/renderer/gl/SyncGL.h"
  
  #include "common/debug.h"
  #include "libANGLE/Context.h"
  #include "libANGLE/renderer/gl/ContextGL.h"
  #include "libANGLE/renderer/gl/FunctionsGL.h"
  
  namespace rx
  {
  
  SyncGL::SyncGL(const FunctionsGL *functions) : SyncImpl(), mFunctions(functions), mSyncObject(0)
  {
      ASSERT(mFunctions);
  }
  
  SyncGL::~SyncGL()
  {
      ASSERT(mSyncObject == 0);
  }
  
  void SyncGL::onDestroy(const gl::Context *context)
  {
      ASSERT(mSyncObject != 0);
      mFunctions->deleteSync(mSyncObject);
      mSyncObject = 0;
  }
  
  angle::Result SyncGL::set(const gl::Context *context, GLenum condition, GLbitfield flags)
  {
      ASSERT(condition == GL_SYNC_GPU_COMMANDS_COMPLETE && flags == 0);
      mSyncObject = mFunctions->fenceSync(condition, flags);
      ANGLE_CHECK(GetImplAs<ContextGL>(context), mSyncObject != 0,
                  "glFenceSync failed to create a GLsync object.", GL_OUT_OF_MEMORY);
      return angle::Result::Continue;
  }
  
  angle::Result SyncGL::clientWait(const gl::Context *context,
                                   GLbitfield flags,
                                   GLuint64 timeout,
                                   GLenum *outResult)
  {
      ASSERT(mSyncObject != 0);
      *outResult = mFunctions->clientWaitSync(mSyncObject, flags, timeout);
      return angle::Result::Continue;
  }
  
  angle::Result SyncGL::serverWait(const gl::Context *context, GLbitfield flags, GLuint64 timeout)
  {
      ASSERT(mSyncObject != 0);
      mFunctions->waitSync(mSyncObject, flags, timeout);
      return angle::Result::Continue;
  }
  
  angle::Result SyncGL::getStatus(const gl::Context *context, GLint *outResult)
  {
      ASSERT(mSyncObject != 0);
      mFunctions->getSynciv(mSyncObject, GL_SYNC_STATUS, 1, nullptr, outResult);
      return angle::Result::Continue;
  }
  }  // namespace rx