kc3-lang/angle/src/libGLESv2/TransformFeedback.cpp

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• Author : Kenneth Russell
  Date : 2014-08-25 19:02:35
  Hash : db8ae16b
  Message : Refactored TransformFeedback for multi-platform ANGLE and added tests. Added angle_implementation_unit_tests target designed for testing the cross-platform code in libGLESv2, and libGLESv2_static target as a dependency. The goal is to incorporate these tests into Chromium's angle_unittests target on all platforms; however, more work is needed to make libGLESv2's common code compile on non-Windows platforms, so this is an intermediate step. BUG=angle:719 Change-Id: Ifc44a779352294e857d6e913d9b997a60674c443 Reviewed-on: https://chromium-review.googlesource.com/214105 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Kenneth Russell <kbr@chromium.org>

• src/libGLESv2/TransformFeedback.cpp

• //
  // Copyright (c) 2014 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.
  //
  
  #include "libGLESv2/TransformFeedback.h"
  #include "libGLESv2/renderer/TransformFeedbackImpl.h"
  
  namespace gl
  {
  
  TransformFeedback::TransformFeedback(rx::TransformFeedbackImpl* impl, GLuint id)
      : RefCountObject(id),
        mTransformFeedback(impl),
        mStarted(GL_FALSE),
        mPrimitiveMode(GL_NONE),
        mPaused(GL_FALSE)
  {
      ASSERT(impl != NULL);
  }
  
  TransformFeedback::~TransformFeedback()
  {
      SafeDelete(mTransformFeedback);
  }
  
  void TransformFeedback::start(GLenum primitiveMode)
  {
      mStarted = GL_TRUE;
      mPrimitiveMode = primitiveMode;
      mPaused = GL_FALSE;
      mTransformFeedback->begin(primitiveMode);
  }
  
  void TransformFeedback::stop()
  {
      mStarted = GL_FALSE;
      mPrimitiveMode = GL_NONE;
      mPaused = GL_FALSE;
      mTransformFeedback->end();
  }
  
  GLboolean TransformFeedback::isStarted() const
  {
      return mStarted;
  }
  
  GLenum TransformFeedback::getDrawMode() const
  {
      return mPrimitiveMode;
  }
  
  void TransformFeedback::pause()
  {
      mPaused = GL_TRUE;
      mTransformFeedback->pause();
  }
  
  void TransformFeedback::resume()
  {
      mPaused = GL_FALSE;
      mTransformFeedback->resume();
  }
  
  GLboolean TransformFeedback::isPaused() const
  {
      return mPaused;
  }
  
  }