/* * Copyright (C) 2013 Apple Inc. All rights reserved. * Copyright (C) 2011 Google Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #if ENABLE(GRAPHICS_CONTEXT_3D) #include "TemporaryOpenGLSetting.h" #if USE(LIBEPOXY) #include "EpoxyShims.h" #elif PLATFORM(COCOA) #if USE(OPENGL_ES) #include <OpenGLES/ES2/gl.h> #else #include <OpenGL/gl.h> #endif #elif USE(OPENGL_ES) #define GL_GLEXT_PROTOTYPES 1 #include <GLES2/gl2.h> #include "OpenGLESShims.h" #elif PLATFORM(GTK) || PLATFORM(WIN) #include "OpenGLShims.h" #endif namespace WebCore { TemporaryOpenGLSetting::TemporaryOpenGLSetting(GLenum capability, GLenum scopedState) : m_capability(capability) , m_scopedState(scopedState) { m_originalState = ::glIsEnabled(m_capability); if (m_originalState == m_scopedState) return; if (GL_TRUE == m_scopedState) ::glEnable(m_capability); else ::glDisable(m_capability); } TemporaryOpenGLSetting::~TemporaryOpenGLSetting() { if (m_originalState == m_scopedState) return; if (GL_TRUE == m_originalState) ::glEnable(m_capability); else ::glDisable(m_capability); } } #endif