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 ENABLE(GRAPHICS_CONTEXT_3D)
30#include "TemporaryOpenGLSetting.h"
31
32#if USE(LIBEPOXY)
33#include "EpoxyShims.h"
34
35#elif PLATFORM(COCOA)
36
37#if USE(OPENGL_ES)
38#include <OpenGLES/ES2/gl.h>
39#else
40#include <OpenGL/gl.h>
41#endif
42
43#elif USE(OPENGL_ES)
44#include <GLES2/gl2.h>
45#include "OpenGLESShims.h"
46
47#elif PLATFORM(GTK) || PLATFORM(WIN)
48#include "OpenGLShims.h"
49#endif
50
51namespace WebCore {
52
53TemporaryOpenGLSetting::TemporaryOpenGLSetting(GLenum capability, GLenum scopedState)
54 : m_capability(capability)
55 , m_scopedState(scopedState)
56{
57 m_originalState = ::glIsEnabled(m_capability);
58 if (m_originalState == m_scopedState)
59 return;
60
61 if (GL_TRUE == m_scopedState)
62 ::glEnable(m_capability);
63 else
64 ::glDisable(m_capability);
65}
66
67TemporaryOpenGLSetting::~TemporaryOpenGLSetting()
68{
69 if (m_originalState == m_scopedState)
70 return;
71
72 if (GL_TRUE == m_originalState)
73 ::glEnable(m_capability);
74 else
75 ::glDisable(m_capability);
76}
77
78}
79
80#endif
81