--- /dev/null
+/*
+ * freeglut_misc.c
+ *
+ * Functions that didn't fit anywhere else...
+ *
+ * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
+ * Written by Pawel W. Olszta, <olszta@sourceforge.net>
+ * Creation date: Thu Dec 9 1999
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <GL/freeglut.h>
+#include "fg_internal.h"
+
+/*
+ * TODO BEFORE THE STABLE RELEASE:
+ *
+ * glutSetColor() --
+ * glutGetColor() --
+ * glutCopyColormap() --
+ * glutSetKeyRepeat() -- this is evil and should be removed from API
+ */
+
+/* -- INTERFACE FUNCTIONS -------------------------------------------------- */
+
+/*
+ * This functions checks if an OpenGL extension is supported or not
+ *
+ * XXX Wouldn't this be simpler and clearer if we used strtok()?
+ */
+int FGAPIENTRY glutExtensionSupported( const char* extension )
+{
+ const char *extensions, *start;
+ const size_t len = strlen( extension );
+
+ /* Make sure there is a current window, and thus a current context available */
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutExtensionSupported" );
+ freeglut_return_val_if_fail( fgStructure.CurrentWindow != NULL, 0 );
+
+ if (strchr(extension, ' '))
+ return 0;
+ start = extensions = (const char *) glGetString(GL_EXTENSIONS);
+
+ /* XXX consider printing a warning to stderr that there's no current
+ * rendering context.
+ */
+ freeglut_return_val_if_fail( extensions != NULL, 0 );
+
+ while (1) {
+ const char *p = strstr(extensions, extension);
+ if (!p)
+ return 0; /* not found */
+ /* check that the match isn't a super string */
+ if ((p == start || p[-1] == ' ') && (p[len] == ' ' || p[len] == 0))
+ return 1;
+ /* skip the false match and continue */
+ extensions = p + len;
+ }
+
+ return 0 ;
+}
+
+#ifndef GL_INVALID_FRAMEBUFFER_OPERATION
+#ifdef GL_INVALID_FRAMEBUFFER_OPERATION_EXT
+#define GL_INVALID_FRAMEBUFFER_OPERATION GL_INVALID_FRAMEBUFFER_OPERATION_EXT
+#else
+#define GL_INVALID_FRAMEBUFFER_OPERATION 0x0506
+#endif
+#endif
+
+#ifndef GL_TABLE_TOO_LARGE
+#ifdef GL_TABLE_TOO_LARGE_EXT
+#define GL_TABLE_TOO_LARGE GL_TABLE_TOO_LARGE_EXT
+#else
+#define GL_TABLE_TOO_LARGE 0x8031
+#endif
+#endif
+
+#ifndef GL_TEXTURE_TOO_LARGE
+#ifdef GL_TEXTURE_TOO_LARGE_EXT
+#define GL_TEXTURE_TOO_LARGE GL_TEXTURE_TOO_LARGE_EXT
+#else
+#define GL_TEXTURE_TOO_LARGE 0x8065
+#endif
+#endif
+
+/*
+ * A cut-down local version of gluErrorString to avoid depending on GLU.
+ */
+static const char* fghErrorString( GLenum error )
+{
+ switch ( error ) {
+ case GL_INVALID_ENUM: return "invalid enumerant";
+ case GL_INVALID_VALUE: return "invalid value";
+ case GL_INVALID_OPERATION: return "invalid operation";
+#ifndef GL_ES_VERSION_2_0
+ case GL_STACK_OVERFLOW: return "stack overflow";
+ case GL_STACK_UNDERFLOW: return "stack underflow";
+#endif
+ case GL_OUT_OF_MEMORY: return "out of memory";
+ case GL_TABLE_TOO_LARGE: return "table too large";
+ case GL_INVALID_FRAMEBUFFER_OPERATION: return "invalid framebuffer operation";
+ case GL_TEXTURE_TOO_LARGE: return "texture too large";
+ default: return "unknown GL error";
+ }
+}
+
+/*
+ * This function reports all the OpenGL errors that happened till now
+ */
+void FGAPIENTRY glutReportErrors( void )
+{
+ GLenum error;
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutReportErrors" );
+ while( ( error = glGetError() ) != GL_NO_ERROR )
+ fgWarning( "GL error: %s", fghErrorString( error ) );
+}
+
+/*
+ * Control the auto-repeat of keystrokes to the current window
+ */
+void FGAPIENTRY glutIgnoreKeyRepeat( int ignore )
+{
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutIgnoreKeyRepeat" );
+ FREEGLUT_EXIT_IF_NO_WINDOW ( "glutIgnoreKeyRepeat" );
+
+ fgStructure.CurrentWindow->State.IgnoreKeyRepeat = ignore ? GL_TRUE : GL_FALSE;
+}
+
+/*
+ * Set global auto-repeat of keystrokes
+ *
+ * RepeatMode should be either:
+ * GLUT_KEY_REPEAT_OFF
+ * GLUT_KEY_REPEAT_ON
+ * GLUT_KEY_REPEAT_DEFAULT
+ */
+void FGAPIENTRY glutSetKeyRepeat( int repeatMode )
+{
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetKeyRepeat" );
+
+ switch( repeatMode )
+ {
+ case GLUT_KEY_REPEAT_OFF:
+ case GLUT_KEY_REPEAT_ON:
+ fgState.KeyRepeat = repeatMode;
+ break;
+
+ case GLUT_KEY_REPEAT_DEFAULT:
+ fgState.KeyRepeat = GLUT_KEY_REPEAT_ON;
+ break;
+
+ default:
+ fgError ("Invalid glutSetKeyRepeat mode: %d", repeatMode);
+ break;
+ }
+}
+
+/*
+ *
+ */
+void FGAPIENTRY glutSetColor( int nColor, GLfloat red, GLfloat green, GLfloat blue )
+{
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetColor" );
+ /* We really need to do something here. */
+}
+
+/*
+ *
+ */
+GLfloat FGAPIENTRY glutGetColor( int color, int component )
+{
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGetColor" );
+ /* We really need to do something here. */
+ return( 0.0f );
+}
+
+/*
+ *
+ */
+void FGAPIENTRY glutCopyColormap( int window )
+{
+ FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutCopyColormap" );
+ /* We really need to do something here. */
+}
+
+/*** END OF FILE ***/
projects / freeglut / blobdiff