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

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• Author : Geoff Lang
  Date : 2015-04-02 11:21:20
  Hash : 7d433ddc
  Message : Implement FenceSyncGL. BUG=angleproject:888 Change-Id: Ie811266ed1cb08d29344fb11cd9afe77f9587cd7 Reviewed-on: https://chromium-review.googlesource.com/263654 Reviewed-by: Kenneth Russell <kbr@chromium.org> Reviewed-by: Brandon Jones <bajones@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>

• src/libANGLE/renderer/gl/FenceSyncGL.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.
  //
  
  // FenceSyncGL.cpp: Implements the class methods for FenceSyncGL.
  
  #include "libANGLE/renderer/gl/FenceSyncGL.h"
  
  #include "common/debug.h"
  #include "libANGLE/renderer/gl/FunctionsGL.h"
  
  namespace rx
  {
  
  FenceSyncGL::FenceSyncGL(const FunctionsGL *functions)
      : FenceSyncImpl(),
        mFunctions(functions),
        mSyncObject(0)
  {
      ASSERT(mFunctions);
  }
  
  FenceSyncGL::~FenceSyncGL()
  {
      if (mSyncObject != 0)
      {
          mFunctions->deleteSync(mSyncObject);
      }
  }
  
  gl::Error FenceSyncGL::set(GLenum condition, GLbitfield flags)
  {
      ASSERT(condition == GL_SYNC_GPU_COMMANDS_COMPLETE && flags == 0);
      mSyncObject = mFunctions->fenceSync(condition, flags);
      if (mSyncObject == 0)
      {
          // if glFenceSync fails, it returns 0.
          return gl::Error(GL_OUT_OF_MEMORY, "glFenceSync failed to create a GLsync object.");
      }
  
      return gl::Error(GL_NO_ERROR);
  }
  
  gl::Error FenceSyncGL::clientWait(GLbitfield flags, GLuint64 timeout, GLenum *outResult)
  {
      ASSERT(mSyncObject != 0);
      *outResult = mFunctions->clientWaitSync(mSyncObject, flags, timeout);
      return gl::Error(GL_NO_ERROR);
  }
  
  gl::Error FenceSyncGL::serverWait(GLbitfield flags, GLuint64 timeout)
  {
      ASSERT(mSyncObject != 0);
      mFunctions->waitSync(mSyncObject, flags, timeout);
      return gl::Error(GL_NO_ERROR);
  }
  
  gl::Error FenceSyncGL::getStatus(GLint *outResult)
  {
      ASSERT(mSyncObject != 0);
      mFunctions->getSynciv(mSyncObject, GL_SYNC_STATUS, 1, nullptr, outResult);
      return gl::Error(GL_NO_ERROR);
  }
  
  }