mirror of https://github.com/axmolengine/axmol.git
138 lines
4.4 KiB
C++
138 lines
4.4 KiB
C++
/****************************************************************************
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Copyright (c) 2010-2011 cocos2d-x.org
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Copyright (c) 2010 Ricardo Quesada
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "CCConfiguration.h"
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#include "ccMacros.h"
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#include "ccConfig.h"
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using namespace std;
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namespace cocos2d {
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CCConfiguration::CCConfiguration(void)
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:m_nMaxTextureSize(0)
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, m_nMaxModelviewStackDepth(0)
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, m_bSupportsPVRTC(false)
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, m_bSupportsNPOT(false)
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, m_bSupportsBGRA8888(false)
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, m_bSupportsDiscardFramebuffer(false)
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, m_bInited(false)
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, m_uOSVersion(0)
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, m_nMaxSamplesAllowed(0)
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, m_pGlExtensions(NULL)
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{
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}
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bool CCConfiguration::init(void)
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{
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CCLOG("cocos2d: GL_VENDOR: %s", glGetString(GL_VENDOR));
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CCLOG("cocos2d: GL_RENDERER: %s", glGetString(GL_RENDERER));
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CCLOG("cocos2d: GL_VERSION: %s", glGetString(GL_VERSION));
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m_pGlExtensions = (char *)glGetString(GL_EXTENSIONS);
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glGetIntegerv(GL_MAX_TEXTURE_SIZE, &m_nMaxTextureSize);
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glGetIntegerv(GL_MAX_MODELVIEW_STACK_DEPTH, &m_nMaxModelviewStackDepth);
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m_bSupportsPVRTC = checkForGLExtension("GL_IMG_texture_compression_pvrtc");
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m_bSupportsNPOT = checkForGLExtension("GL_APPLE_texture_2D_limited_npot");
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m_bSupportsBGRA8888 = checkForGLExtension("GL_IMG_texture_format_BGRA888");
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m_bSupportsDiscardFramebuffer = checkForGLExtension("GL_EXT_discard_framebuffer");
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CCLOG("cocos2d: GL_MAX_TEXTURE_SIZE: %d", m_nMaxTextureSize);
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CCLOG("cocos2d: GL_MAX_MODELVIEW_STACK_DEPTH: %d",m_nMaxModelviewStackDepth);
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CCLOG("cocos2d: GL supports PVRTC: %s", (m_bSupportsPVRTC ? "YES" : "NO"));
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CCLOG("cocos2d: GL supports BGRA8888 textures: %s", (m_bSupportsBGRA8888 ? "YES" : "NO"));
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CCLOG("cocos2d: GL supports NPOT textures: %s", (m_bSupportsNPOT ? "YES" : "NO"));
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CCLOG("cocos2d: GL supports discard_framebuffer: %s", (m_bSupportsDiscardFramebuffer ? "YES" : "NO"));
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#if CC_TEXTURE_NPOT_SUPPORT
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CCLOG("cocos2d: compiled with NPOT support: %s", "YES");
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#else
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CCLOG("cocos2d: compiled with NPOT support: %s", "NO");
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#endif // CC_TEXTURE_NPOT_SUPPORT
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#if CC_TEXTURE_ATLAS_USES_VBO
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CCLOG("cocos2d: compiled with VBO support in TextureAtlas : %s", "YES");
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#else
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CCLOG("cocos2d: compiled with VBO support in TextureAtlas : %s", "NO");
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#endif // CC_TEXTURE_ATLAS_USES_VBO
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return true;
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}
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CCGlesVersion CCConfiguration::getGlesVersion()
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{
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// To get the Opengl ES version
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std::string strVersion((char *)glGetString(GL_VERSION));
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if ((int)strVersion.find("1.0") != -1)
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{
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return GLES_VER_1_0;
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}
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else if ((int)strVersion.find("1.1") != -1)
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{
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return GLES_VER_1_1;
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}
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else if ((int)strVersion.find("2.0") != -1)
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{
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return GLES_VER_2_0;
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}
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#if (CC_TARGET_PLATFORM == CC_PLATFORM_LINUX)
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return GLES_VER_2_0;
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#else
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return GLES_VER_INVALID;
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#endif
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}
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CCConfiguration* CCConfiguration::sharedConfiguration(void)
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{
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static CCConfiguration sharedConfiguration;
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if (!sharedConfiguration.m_bInited)
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{
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sharedConfiguration.init();
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sharedConfiguration.m_bInited = true;
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}
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return &sharedConfiguration;
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}
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bool CCConfiguration::checkForGLExtension(const string &searchName)
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{
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bool bRet = false;
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const char *kSearchName = searchName.c_str();
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if (m_pGlExtensions &&
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strstr(m_pGlExtensions, kSearchName))
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{
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bRet = true;
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}
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return bRet;
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}
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}//namespace cocos2d
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