[1] | 1 | |
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| 2 | /* |
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| 3 | ----------------------------------------------------------------------------- |
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| 4 | This source file is part of OGRE |
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| 5 | (Object-oriented Graphics Rendering Engine) |
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| 6 | For the latest info, see http://www.ogre3d.org/ |
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| 7 | |
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| 8 | Copyright (c) 2000-2006 Torus Knot Software Ltd |
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| 9 | Also see acknowledgements in Readme.html |
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| 10 | |
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| 11 | This program is free software; you can redistribute it and/or modify it under |
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| 12 | the terms of the GNU Lesser General Public License as published by the Free Software |
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| 13 | Foundation; either version 2 of the License, or (at your option) any later |
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| 14 | version. |
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| 15 | |
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| 16 | This program is distributed in the hope that it will be useful, but WITHOUT |
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| 17 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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| 18 | FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. |
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| 19 | |
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| 20 | You should have received a copy of the GNU Lesser General Public License along with |
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| 21 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
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| 22 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to |
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| 23 | http://www.gnu.org/copyleft/lesser.txt. |
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| 24 | |
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| 25 | You may alternatively use this source under the terms of a specific version of |
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| 26 | the OGRE Unrestricted License provided you have obtained such a license from |
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| 27 | Torus Knot Software Ltd. |
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| 28 | ----------------------------------------------------------------------------- |
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| 29 | */ |
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| 30 | |
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| 31 | |
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| 32 | #include "OgreGLSupport.h" |
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| 33 | #include "OgreGLTexture.h" |
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| 34 | #include "OgreLogManager.h" |
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| 35 | |
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| 36 | namespace Ogre { |
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| 37 | |
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| 38 | void GLSupport::setConfigOption(const String &name, const String &value) |
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| 39 | { |
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| 40 | ConfigOptionMap::iterator it = mOptions.find(name); |
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| 41 | |
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| 42 | if (it != mOptions.end()) |
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| 43 | it->second.currentValue = value; |
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| 44 | } |
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| 45 | |
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| 46 | ConfigOptionMap& GLSupport::getConfigOptions(void) |
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| 47 | { |
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| 48 | return mOptions; |
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| 49 | } |
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| 50 | |
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| 51 | void GLSupport::initialiseExtensions(void) |
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| 52 | { |
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| 53 | // Set version string |
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| 54 | const GLubyte* pcVer = glGetString(GL_VERSION); |
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| 55 | |
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| 56 | |
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| 57 | assert(pcVer && "Problems getting GL version string using glGetString"); |
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| 58 | |
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| 59 | String tmpStr = (const char*)pcVer; |
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| 60 | LogManager::getSingleton().logMessage("GL_VERSION = " + tmpStr); |
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| 61 | mVersion = tmpStr.substr(0, tmpStr.find(" ")); |
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| 62 | |
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| 63 | // Get vendor |
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| 64 | const GLubyte* pcVendor = glGetString(GL_VENDOR); |
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| 65 | tmpStr = (const char*)pcVendor; |
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| 66 | LogManager::getSingleton().logMessage("GL_VENDOR = " + tmpStr); |
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| 67 | mVendor = tmpStr.substr(0, tmpStr.find(" ")); |
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| 68 | |
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| 69 | // Get renderer |
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| 70 | const GLubyte* pcRenderer = glGetString(GL_RENDERER); |
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| 71 | tmpStr = (const char*)pcRenderer; |
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| 72 | LogManager::getSingleton().logMessage("GL_RENDERER = " + tmpStr); |
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| 73 | |
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| 74 | // Set extension list |
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| 75 | std::stringstream ext; |
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| 76 | String str; |
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| 77 | |
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| 78 | const GLubyte* pcExt = glGetString(GL_EXTENSIONS); |
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| 79 | LogManager::getSingleton().logMessage("GL_EXTENSIONS = " + String((const char*)pcExt)); |
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| 80 | |
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| 81 | assert(pcExt && "Problems getting GL extension string using glGetString"); |
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| 82 | |
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| 83 | ext << pcExt; |
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| 84 | |
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| 85 | while(ext >> str) |
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| 86 | { |
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| 87 | extensionList.insert(str); |
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| 88 | } |
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| 89 | } |
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| 90 | |
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| 91 | bool GLSupport::checkMinGLVersion(const String& v) const |
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| 92 | { |
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| 93 | unsigned int first, second, third; |
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| 94 | unsigned int cardFirst, cardSecond, cardThird; |
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| 95 | if(v == mVersion) |
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| 96 | return true; |
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| 97 | |
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| 98 | String::size_type pos = v.find("."); |
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| 99 | if(pos == String::npos) |
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| 100 | return false; |
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| 101 | |
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| 102 | String::size_type pos1 = v.rfind("."); |
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| 103 | if(pos1 == String::npos) |
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| 104 | return false; |
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| 105 | |
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| 106 | first = ::atoi(v.substr(0, pos).c_str()); |
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| 107 | second = ::atoi(v.substr(pos + 1, pos1 - (pos + 1)).c_str()); |
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| 108 | third = ::atoi(v.substr(pos1 + 1, v.length()).c_str()); |
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| 109 | |
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| 110 | pos = mVersion.find("."); |
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| 111 | if(pos == String::npos) |
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| 112 | return false; |
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| 113 | |
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| 114 | pos1 = mVersion.rfind("."); |
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| 115 | if(pos1 == String::npos) |
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| 116 | return false; |
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| 117 | |
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| 118 | cardFirst = ::atoi(mVersion.substr(0, pos).c_str()); |
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| 119 | cardSecond = ::atoi(mVersion.substr(pos + 1, pos1 - (pos + 1)).c_str()); |
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| 120 | cardThird = ::atoi(mVersion.substr(pos1 + 1, mVersion.length()).c_str()); |
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| 121 | |
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| 122 | if(first <= cardFirst && second <= cardSecond && third <= cardThird) |
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| 123 | return true; |
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| 124 | |
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| 125 | return false; |
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| 126 | } |
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| 127 | |
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| 128 | bool GLSupport::checkExtension(const String& ext) const |
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| 129 | { |
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| 130 | if(extensionList.find(ext) == extensionList.end()) |
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| 131 | return false; |
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| 132 | |
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| 133 | return true; |
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| 134 | } |
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| 135 | |
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| 136 | bool GLSupport::supportsPBuffers() |
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| 137 | { |
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| 138 | return (GLEW_ARB_pixel_buffer_object || GLEW_EXT_pixel_buffer_object) != GL_FALSE; |
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| 139 | } |
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| 140 | |
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| 141 | GLPBuffer* GLSupport::createPBuffer(PixelComponentType format, size_t width, size_t height) |
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| 142 | { |
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| 143 | return 0; |
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| 144 | } |
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| 145 | |
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| 146 | } |
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