4 * Functions that didn't fit anywhere else...
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6 * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
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7 * Written by Pawel W. Olszta, <olszta@sourceforge.net>
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8 * Creation date: Thu Dec 9 1999
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10 * Permission is hereby granted, free of charge, to any person obtaining a
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11 * copy of this software and associated documentation files (the "Software"),
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12 * to deal in the Software without restriction, including without limitation
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13 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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14 * and/or sell copies of the Software, and to permit persons to whom the
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15 * Software is furnished to do so, subject to the following conditions:
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17 * The above copyright notice and this permission notice shall be included
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18 * in all copies or substantial portions of the Software.
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20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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23 * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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24 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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25 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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28 #include <GL/freeglut.h>
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29 #include "freeglut_internal.h"
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32 * TODO BEFORE THE STABLE RELEASE:
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36 * glutCopyColormap() --
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37 * glutSetKeyRepeat() -- this is evil and should be removed from API
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40 /* -- INTERFACE FUNCTIONS -------------------------------------------------- */
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43 * This functions checks if an OpenGL extension is supported or not
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45 * XXX Wouldn't this be simpler and clearer if we used strtok()?
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47 int FGAPIENTRY glutExtensionSupported( const char* extension )
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49 const char *extensions, *start;
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50 const size_t len = strlen( extension );
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52 /* Make sure there is a current window, and thus a current context available */
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53 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutExtensionSupported" );
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54 freeglut_return_val_if_fail( fgStructure.CurrentWindow != NULL, 0 );
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56 if (strchr(extension, ' '))
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58 start = extensions = (const char *) glGetString(GL_EXTENSIONS);
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60 /* XXX consider printing a warning to stderr that there's no current
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61 * rendering context.
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63 freeglut_return_val_if_fail( extensions != NULL, 0 );
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66 const char *p = strstr(extensions, extension);
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68 return 0; /* not found */
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69 /* check that the match isn't a super string */
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70 if ((p == start || p[-1] == ' ') && (p[len] == ' ' || p[len] == 0))
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72 /* skip the false match and continue */
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73 extensions = p + len;
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79 #ifndef GL_INVALID_FRAMEBUFFER_OPERATION
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80 #ifdef GL_INVALID_FRAMEBUFFER_OPERATION_EXT
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81 #define GL_INVALID_FRAMEBUFFER_OPERATION GL_INVALID_FRAMEBUFFER_OPERATION_EXT
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83 #define GL_INVALID_FRAMEBUFFER_OPERATION 0x0506
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87 #ifndef GL_TABLE_TOO_LARGE
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88 #ifdef GL_TABLE_TOO_LARGE_EXT
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89 #define GL_TABLE_TOO_LARGE GL_TABLE_TOO_LARGE_EXT
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91 #define GL_TABLE_TOO_LARGE 0x8031
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95 #ifndef GL_TEXTURE_TOO_LARGE
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96 #ifdef GL_TEXTURE_TOO_LARGE_EXT
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97 #define GL_TEXTURE_TOO_LARGE GL_TEXTURE_TOO_LARGE_EXT
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99 #define GL_TEXTURE_TOO_LARGE 0x8065
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104 * A cut-down local version of gluErrorString to avoid depending on GLU.
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106 static const char* fghErrorString( GLenum error )
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109 case GL_INVALID_ENUM: return "invalid enumerant";
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110 case GL_INVALID_VALUE: return "invalid value";
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111 case GL_INVALID_OPERATION: return "invalid operation";
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112 case GL_STACK_OVERFLOW: return "stack overflow";
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113 case GL_STACK_UNDERFLOW: return "stack underflow";
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114 case GL_OUT_OF_MEMORY: return "out of memory";
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115 case GL_TABLE_TOO_LARGE: return "table too large";
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116 case GL_INVALID_FRAMEBUFFER_OPERATION: return "invalid framebuffer operation";
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117 case GL_TEXTURE_TOO_LARGE: return "texture too large";
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118 default: return "unknown GL error";
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123 * This function reports all the OpenGL errors that happened till now
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125 void FGAPIENTRY glutReportErrors( void )
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128 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutReportErrors" );
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129 while( ( error = glGetError() ) != GL_NO_ERROR )
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130 fgWarning( "GL error: %s", fghErrorString( error ) );
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134 * Control the auto-repeat of keystrokes to the current window
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136 void FGAPIENTRY glutIgnoreKeyRepeat( int ignore )
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138 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutIgnoreKeyRepeat" );
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139 FREEGLUT_EXIT_IF_NO_WINDOW ( "glutIgnoreKeyRepeat" );
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141 fgStructure.CurrentWindow->State.IgnoreKeyRepeat = ignore ? GL_TRUE : GL_FALSE;
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145 * Set global auto-repeat of keystrokes
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147 * RepeatMode should be either:
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148 * GLUT_KEY_REPEAT_OFF
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149 * GLUT_KEY_REPEAT_ON
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150 * GLUT_KEY_REPEAT_DEFAULT
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152 void FGAPIENTRY glutSetKeyRepeat( int repeatMode )
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154 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetKeyRepeat" );
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156 switch( repeatMode )
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158 case GLUT_KEY_REPEAT_OFF:
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159 case GLUT_KEY_REPEAT_ON:
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160 fgState.KeyRepeat = repeatMode;
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163 case GLUT_KEY_REPEAT_DEFAULT:
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164 fgState.KeyRepeat = GLUT_KEY_REPEAT_ON;
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168 fgError ("Invalid glutSetKeyRepeat mode: %d", repeatMode);
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174 * Forces the joystick callback to be executed
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176 void FGAPIENTRY glutForceJoystickFunc( void )
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178 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutForceJoystickFunc" );
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179 #if !defined(_WIN32_WCE)
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180 freeglut_return_if_fail( fgStructure.CurrentWindow != NULL );
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181 freeglut_return_if_fail( FETCH_WCB( *( fgStructure.CurrentWindow ), Joystick ) );
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182 fgJoystickPollWindow( fgStructure.CurrentWindow );
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183 #endif /* !defined(_WIN32_WCE) */
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189 void FGAPIENTRY glutSetColor( int nColor, GLfloat red, GLfloat green, GLfloat blue )
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191 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetColor" );
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192 /* We really need to do something here. */
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198 GLfloat FGAPIENTRY glutGetColor( int color, int component )
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200 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGetColor" );
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201 /* We really need to do something here. */
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208 void FGAPIENTRY glutCopyColormap( int window )
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210 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutCopyColormap" );
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211 /* We really need to do something here. */
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214 /*** END OF FILE ***/
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