1/*
2 * Copyright (C) 2013 Apple Inc. All rights reserved.
3 * Copyright (C) 2011 Google Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1.  Redistributions of source code must retain the above copyright
10 *     notice, this list of conditions and the following disclaimer.
11 * 2.  Redistributions in binary form must reproduce the above copyright
12 *     notice, this list of conditions and the following disclaimer in the
13 *     documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
19 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
22 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "config.h"
28
29#if USE(3D_GRAPHICS)
30#include "TemporaryOpenGLSetting.h"
31
32#if USE(OPENGL_ES_2)
33#include <GLES2/gl2.h>
34#include "OpenGLESShims.h"
35#elif PLATFORM(IOS)
36#include <OpenGLES/ES2/gl.h>
37#elif PLATFORM(MAC)
38#include <OpenGL/gl.h>
39#elif PLATFORM(GTK) || PLATFORM(EFL) || PLATFORM(WIN)
40#include "OpenGLShims.h"
41#endif
42
43namespace WebCore {
44
45TemporaryOpenGLSetting::TemporaryOpenGLSetting(GLenum capability, GLenum scopedState)
46    : m_capability(capability)
47    , m_scopedState(scopedState)
48{
49    m_originalState = ::glIsEnabled(m_capability);
50    if (m_originalState == m_scopedState)
51        return;
52
53    if (GL_TRUE == m_scopedState)
54        ::glEnable(m_capability);
55    else
56        ::glDisable(m_capability);
57}
58
59TemporaryOpenGLSetting::~TemporaryOpenGLSetting()
60{
61    if (m_originalState == m_scopedState)
62        return;
63
64    if (GL_TRUE == m_originalState)
65        ::glEnable(m_capability);
66    else
67        ::glDisable(m_capability);
68}
69
70}
71
72#endif
73