dom/canvas/WebGLBindableName.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "WebGLBindableName.h"
   7 #include "GLConsts.h"
   8 #include "mozilla/Assertions.h"
   9
  10 using namespace mozilla;
  11
  12 WebGLBindableName::WebGLBindableName()
  13     : mGLName(LOCAL_GL_NONE)
  14     , mTarget(LOCAL_GL_NONE)
  15 { }
  16
  17 void
  18 WebGLBindableName::BindTo(GLenum target)
  19 {
  20     MOZ_ASSERT(target != LOCAL_GL_NONE, "Can't bind to GL_NONE.");
  21     MOZ_ASSERT(mTarget == LOCAL_GL_NONE || mTarget == target, "Rebinding is illegal.");
  22
  23     bool targetChanged = (target != mTarget);
  24     mTarget = target;
  25     if (targetChanged)
  26         OnTargetChanged();
  27 }