--- /dev/null
+
+/* Copyright (c) Mark J. Kilgard, 1994, 1997. */
+
+/* This program is freely distributable without licensing fees
+ and is provided without guarantee or warrantee expressed or
+ implied. This program is -not- in the public domain. */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "glutint.h"
+
+/* CENTRY */
+int GLUTAPIENTRY
+glutExtensionSupported(const char *extension)
+{
+ static const GLubyte *extensions = NULL;
+ const GLubyte *start;
+ GLubyte *where, *terminator;
+
+ /* Extension names should not have spaces. */
+ where = (GLubyte *) strchr(extension, ' ');
+ if (where || *extension == '\0')
+ return 0;
+
+ if (!extensions) {
+ extensions = glGetString(GL_EXTENSIONS);
+ }
+ /* It takes a bit of care to be fool-proof about parsing the
+ OpenGL extensions string. Don't be fooled by sub-strings,
+ etc. */
+ start = extensions;
+ for (;;) {
+ /* If your application crashes in the strstr routine below,
+ you are probably calling glutExtensionSupported without
+ having a current window. Calling glGetString without
+ a current OpenGL context has unpredictable results.
+ Please fix your program. */
+ where = (GLubyte *) strstr((const char *) start, extension);
+ if (!where)
+ break;
+ terminator = where + strlen(extension);
+ if (where == start || *(where - 1) == ' ') {
+ if (*terminator == ' ' || *terminator == '\0') {
+ return 1;
+ }
+ }
+ start = terminator;
+ }
+ return 0;
+}
+
+
+struct name_address_pair {
+ const char *name;
+ const void *address;
+};
+
+static struct name_address_pair glut_functions[] = {
+ { "glutInit", (const void *) glutInit },
+ { "glutInitDisplayMode", (const void *) glutInitDisplayMode },
+ { "glutInitDisplayString", (const void *) glutInitDisplayString },
+ { "glutInitWindowPosition", (const void *) glutInitWindowPosition },
+ { "glutInitWindowSize", (const void *) glutInitWindowSize },
+ { "glutMainLoop", (const void *) glutMainLoop },
+ { "glutCreateWindow", (const void *) glutCreateWindow },
+ { "glutCreateSubWindow", (const void *) glutCreateSubWindow },
+ { "glutDestroyWindow", (const void *) glutDestroyWindow },
+ { "glutPostRedisplay", (const void *) glutPostRedisplay },
+ { "glutPostWindowRedisplay", (const void *) glutPostWindowRedisplay },
+ { "glutSwapBuffers", (const void *) glutSwapBuffers },
+ { "glutGetWindow", (const void *) glutGetWindow },
+ { "glutSetWindow", (const void *) glutSetWindow },
+ { "glutSetWindowTitle", (const void *) glutSetWindowTitle },
+ { "glutSetIconTitle", (const void *) glutSetIconTitle },
+ { "glutPositionWindow", (const void *) glutPositionWindow },
+ { "glutReshapeWindow", (const void *) glutReshapeWindow },
+ { "glutPopWindow", (const void *) glutPopWindow },
+ { "glutPushWindow", (const void *) glutPushWindow },
+ { "glutIconifyWindow", (const void *) glutIconifyWindow },
+ { "glutShowWindow", (const void *) glutShowWindow },
+ { "glutHideWindow", (const void *) glutHideWindow },
+ { "glutFullScreen", (const void *) glutFullScreen },
+ { "glutSetCursor", (const void *) glutSetCursor },
+ { "glutWarpPointer", (const void *) glutWarpPointer },
+ { "glutEstablishOverlay", (const void *) glutEstablishOverlay },
+ { "glutRemoveOverlay", (const void *) glutRemoveOverlay },
+ { "glutUseLayer", (const void *) glutUseLayer },
+ { "glutPostOverlayRedisplay", (const void *) glutPostOverlayRedisplay },
+ { "glutPostWindowOverlayRedisplay", (const void *) glutPostWindowOverlayRedisplay },
+ { "glutShowOverlay", (const void *) glutShowOverlay },
+ { "glutHideOverlay", (const void *) glutHideOverlay },
+ { "glutCreateMenu", (const void *) glutCreateMenu },
+ { "glutDestroyMenu", (const void *) glutDestroyMenu },
+ { "glutGetMenu", (const void *) glutGetMenu },
+ { "glutSetMenu", (const void *) glutSetMenu },
+ { "glutAddMenuEntry", (const void *) glutAddMenuEntry },
+ { "glutAddSubMenu", (const void *) glutAddSubMenu },
+ { "glutChangeToMenuEntry", (const void *) glutChangeToMenuEntry },
+ { "glutChangeToSubMenu", (const void *) glutChangeToSubMenu },
+ { "glutRemoveMenuItem", (const void *) glutRemoveMenuItem },
+ { "glutAttachMenu", (const void *) glutAttachMenu },
+ { "glutDetachMenu", (const void *) glutDetachMenu },
+ { "glutDisplayFunc", (const void *) glutDisplayFunc },
+ { "glutReshapeFunc", (const void *) glutReshapeFunc },
+ { "glutKeyboardFunc", (const void *) glutKeyboardFunc },
+ { "glutMouseFunc", (const void *) glutMouseFunc },
+ { "glutMotionFunc", (const void *) glutMotionFunc },
+ { "glutPassiveMotionFunc", (const void *) glutPassiveMotionFunc },
+ { "glutEntryFunc", (const void *) glutEntryFunc },
+ { "glutVisibilityFunc", (const void *) glutVisibilityFunc },
+ { "glutIdleFunc", (const void *) glutIdleFunc },
+ { "glutTimerFunc", (const void *) glutTimerFunc },
+ { "glutMenuStateFunc", (const void *) glutMenuStateFunc },
+ { "glutSpecialFunc", (const void *) glutSpecialFunc },
+ { "glutSpaceballMotionFunc", (const void *) glutSpaceballMotionFunc },
+ { "glutSpaceballRotateFunc", (const void *) glutSpaceballRotateFunc },
+ { "glutSpaceballButtonFunc", (const void *) glutSpaceballButtonFunc },
+ { "glutButtonBoxFunc", (const void *) glutButtonBoxFunc },
+ { "glutDialsFunc", (const void *) glutDialsFunc },
+ { "glutTabletMotionFunc", (const void *) glutTabletMotionFunc },
+ { "glutTabletButtonFunc", (const void *) glutTabletButtonFunc },
+ { "glutMenuStatusFunc", (const void *) glutMenuStatusFunc },
+ { "glutOverlayDisplayFunc", (const void *) glutOverlayDisplayFunc },
+ { "glutWindowStatusFunc", (const void *) glutWindowStatusFunc },
+// { "glutKeyboardUpFunc", (const void *) glutKeyboardUpFunc },
+// { "glutSpecialUpFunc", (const void *) glutSpecialUpFunc },
+// { "glutJoystickFunc", (const void *) glutJoystickFunc },
+ { "glutSetColor", (const void *) glutSetColor },
+ { "glutGetColor", (const void *) glutGetColor },
+ { "glutCopyColormap", (const void *) glutCopyColormap },
+ { "glutGet", (const void *) glutGet },
+ { "glutDeviceGet", (const void *) glutDeviceGet },
+ { "glutExtensionSupported", (const void *) glutExtensionSupported },
+ { "glutGetModifiers", (const void *) glutGetModifiers },
+ { "glutLayerGet", (const void *) glutLayerGet },
+ { "glutGetProcAddress", (const void *) glutGetProcAddress },
+ { "glutBitmapCharacter", (const void *) glutBitmapCharacter },
+ { "glutBitmapWidth", (const void *) glutBitmapWidth },
+ { "glutStrokeCharacter", (const void *) glutStrokeCharacter },
+ { "glutStrokeWidth", (const void *) glutStrokeWidth },
+ { "glutBitmapLength", (const void *) glutBitmapLength },
+ { "glutStrokeLength", (const void *) glutStrokeLength },
+ { "glutWireSphere", (const void *) glutWireSphere },
+ { "glutSolidSphere", (const void *) glutSolidSphere },
+ { "glutWireCone", (const void *) glutWireCone },
+ { "glutSolidCone", (const void *) glutSolidCone },
+ { "glutWireCube", (const void *) glutWireCube },
+ { "glutSolidCube", (const void *) glutSolidCube },
+ { "glutWireTorus", (const void *) glutWireTorus },
+ { "glutSolidTorus", (const void *) glutSolidTorus },
+ { "glutWireDodecahedron", (const void *) glutWireDodecahedron },
+ { "glutSolidDodecahedron", (const void *) glutSolidDodecahedron },
+ { "glutWireTeapot", (const void *) glutWireTeapot },
+ { "glutSolidTeapot", (const void *) glutSolidTeapot },
+ { "glutWireOctahedron", (const void *) glutWireOctahedron },
+ { "glutSolidOctahedron", (const void *) glutSolidOctahedron },
+ { "glutWireTetrahedron", (const void *) glutWireTetrahedron },
+ { "glutSolidTetrahedron", (const void *) glutSolidTetrahedron },
+ { "glutWireIcosahedron", (const void *) glutWireIcosahedron },
+ { "glutSolidIcosahedron", (const void *) glutSolidIcosahedron },
+ { "glutVideoResizeGet", (const void *) glutVideoResizeGet },
+ { "glutSetupVideoResizing", (const void *) glutSetupVideoResizing },
+ { "glutStopVideoResizing", (const void *) glutStopVideoResizing },
+ { "glutVideoResize", (const void *) glutVideoResize },
+ { "glutVideoPan", (const void *) glutVideoPan },
+ { "glutReportErrors", (const void *) glutReportErrors },
+// { "glutIgnoreKeyRepeat", (const void *) glutIgnoreKeyRepeat },
+// { "glutSetKeyRepeat", (const void *) glutSetKeyRepeat },
+// { "glutForceJoystickFunc", (const void *) glutForceJoystickFunc },
+// { "glutGameModeString", (const void *) glutGameModeString },
+// { "glutEnterGameMode", (const void *) glutEnterGameMode },
+// { "glutLeaveGameMode", (const void *) glutLeaveGameMode },
+// { "glutGameModeGet", (const void *) glutGameModeGet },
+ { NULL, NULL }
+};
+
+
+/* XXX This isn't an official GLUT function, yet */
+void * GLUTAPIENTRY
+glutGetProcAddress(const char *procName)
+{
+ /* Try GLUT functions first */
+ int i;
+ for (i = 0; glut_functions[i].name; i++) {
+ if (strcmp(glut_functions[i].name, procName) == 0)
+ return (void *) glut_functions[i].address;
+ }
+
+ /* Try core GL functions */
+#if defined(_WIN32)
+ return (void *) wglGetProcAddress((LPCSTR) procName);
+#elif defined(GLX_ARB_get_proc_address)
+ return (void *) glXGetProcAddressARB((const GLubyte *) procName);
+#else
+ return NULL;
+#endif
+}
+
+
+/* ENDCENTRY */