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/* 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 GLUTproc address;
};
static struct name_address_pair glut_functions[] = {
{ "glutInit", (const GLUTproc) glutInit },
{ "glutInitDisplayMode", (const GLUTproc) glutInitDisplayMode },
{ "glutInitDisplayString", (const GLUTproc) glutInitDisplayString },
{ "glutInitWindowPosition", (const GLUTproc) glutInitWindowPosition },
{ "glutInitWindowSize", (const GLUTproc) glutInitWindowSize },
{ "glutMainLoop", (const GLUTproc) glutMainLoop },
{ "glutCreateWindow", (const GLUTproc) glutCreateWindow },
{ "glutCreateSubWindow", (const GLUTproc) glutCreateSubWindow },
{ "glutDestroyWindow", (const GLUTproc) glutDestroyWindow },
{ "glutPostRedisplay", (const GLUTproc) glutPostRedisplay },
{ "glutPostWindowRedisplay", (const GLUTproc) glutPostWindowRedisplay },
{ "glutSwapBuffers", (const GLUTproc) glutSwapBuffers },
{ "glutGetWindow", (const GLUTproc) glutGetWindow },
{ "glutSetWindow", (const GLUTproc) glutSetWindow },
{ "glutSetWindowTitle", (const GLUTproc) glutSetWindowTitle },
{ "glutSetIconTitle", (const GLUTproc) glutSetIconTitle },
{ "glutPositionWindow", (const GLUTproc) glutPositionWindow },
{ "glutReshapeWindow", (const GLUTproc) glutReshapeWindow },
{ "glutPopWindow", (const GLUTproc) glutPopWindow },
{ "glutPushWindow", (const GLUTproc) glutPushWindow },
{ "glutIconifyWindow", (const GLUTproc) glutIconifyWindow },
{ "glutShowWindow", (const GLUTproc) glutShowWindow },
{ "glutHideWindow", (const GLUTproc) glutHideWindow },
{ "glutFullScreen", (const GLUTproc) glutFullScreen },
{ "glutSetCursor", (const GLUTproc) glutSetCursor },
{ "glutWarpPointer", (const GLUTproc) glutWarpPointer },
{ "glutEstablishOverlay", (const GLUTproc) glutEstablishOverlay },
{ "glutRemoveOverlay", (const GLUTproc) glutRemoveOverlay },
{ "glutUseLayer", (const GLUTproc) glutUseLayer },
{ "glutPostOverlayRedisplay", (const GLUTproc) glutPostOverlayRedisplay },
{ "glutPostWindowOverlayRedisplay", (const GLUTproc) glutPostWindowOverlayRedisplay },
{ "glutShowOverlay", (const GLUTproc) glutShowOverlay },
{ "glutHideOverlay", (const GLUTproc) glutHideOverlay },
{ "glutCreateMenu", (const GLUTproc) glutCreateMenu },
{ "glutDestroyMenu", (const GLUTproc) glutDestroyMenu },
{ "glutGetMenu", (const GLUTproc) glutGetMenu },
{ "glutSetMenu", (const GLUTproc) glutSetMenu },
{ "glutAddMenuEntry", (const GLUTproc) glutAddMenuEntry },
{ "glutAddSubMenu", (const GLUTproc) glutAddSubMenu },
{ "glutChangeToMenuEntry", (const GLUTproc) glutChangeToMenuEntry },
{ "glutChangeToSubMenu", (const GLUTproc) glutChangeToSubMenu },
{ "glutRemoveMenuItem", (const GLUTproc) glutRemoveMenuItem },
{ "glutAttachMenu", (const GLUTproc) glutAttachMenu },
{ "glutDetachMenu", (const GLUTproc) glutDetachMenu },
{ "glutDisplayFunc", (const GLUTproc) glutDisplayFunc },
{ "glutReshapeFunc", (const GLUTproc) glutReshapeFunc },
{ "glutKeyboardFunc", (const GLUTproc) glutKeyboardFunc },
{ "glutMouseFunc", (const GLUTproc) glutMouseFunc },
{ "glutMotionFunc", (const GLUTproc) glutMotionFunc },
{ "glutPassiveMotionFunc", (const GLUTproc) glutPassiveMotionFunc },
{ "glutEntryFunc", (const GLUTproc) glutEntryFunc },
{ "glutVisibilityFunc", (const GLUTproc) glutVisibilityFunc },
{ "glutIdleFunc", (const GLUTproc) glutIdleFunc },
{ "glutTimerFunc", (const GLUTproc) glutTimerFunc },
{ "glutMenuStateFunc", (const GLUTproc) glutMenuStateFunc },
{ "glutSpecialFunc", (const GLUTproc) glutSpecialFunc },
{ "glutSpaceballMotionFunc", (const GLUTproc) glutSpaceballMotionFunc },
{ "glutSpaceballRotateFunc", (const GLUTproc) glutSpaceballRotateFunc },
{ "glutSpaceballButtonFunc", (const GLUTproc) glutSpaceballButtonFunc },
{ "glutButtonBoxFunc", (const GLUTproc) glutButtonBoxFunc },
{ "glutDialsFunc", (const GLUTproc) glutDialsFunc },
{ "glutTabletMotionFunc", (const GLUTproc) glutTabletMotionFunc },
{ "glutTabletButtonFunc", (const GLUTproc) glutTabletButtonFunc },
{ "glutMenuStatusFunc", (const GLUTproc) glutMenuStatusFunc },
{ "glutOverlayDisplayFunc", (const GLUTproc) glutOverlayDisplayFunc },
{ "glutWindowStatusFunc", (const GLUTproc) glutWindowStatusFunc },
// { "glutKeyboardUpFunc", (const GLUTproc) glutKeyboardUpFunc },
// { "glutSpecialUpFunc", (const GLUTproc) glutSpecialUpFunc },
// { "glutJoystickFunc", (const GLUTproc) glutJoystickFunc },
{ "glutSetColor", (const GLUTproc) glutSetColor },
{ "glutGetColor", (const GLUTproc) glutGetColor },
{ "glutCopyColormap", (const GLUTproc) glutCopyColormap },
{ "glutGet", (const GLUTproc) glutGet },
{ "glutDeviceGet", (const GLUTproc) glutDeviceGet },
{ "glutExtensionSupported", (const GLUTproc) glutExtensionSupported },
{ "glutGetModifiers", (const GLUTproc) glutGetModifiers },
{ "glutLayerGet", (const GLUTproc) glutLayerGet },
{ "glutGetProcAddress", (const GLUTproc) glutGetProcAddress },
{ "glutBitmapCharacter", (const GLUTproc) glutBitmapCharacter },
{ "glutBitmapWidth", (const GLUTproc) glutBitmapWidth },
{ "glutStrokeCharacter", (const GLUTproc) glutStrokeCharacter },
{ "glutStrokeWidth", (const GLUTproc) glutStrokeWidth },
{ "glutBitmapLength", (const GLUTproc) glutBitmapLength },
{ "glutStrokeLength", (const GLUTproc) glutStrokeLength },
{ "glutWireSphere", (const GLUTproc) glutWireSphere },
{ "glutSolidSphere", (const GLUTproc) glutSolidSphere },
{ "glutWireCone", (const GLUTproc) glutWireCone },
{ "glutSolidCone", (const GLUTproc) glutSolidCone },
{ "glutWireCube", (const GLUTproc) glutWireCube },
{ "glutSolidCube", (const GLUTproc) glutSolidCube },
{ "glutWireTorus", (const GLUTproc) glutWireTorus },
{ "glutSolidTorus", (const GLUTproc) glutSolidTorus },
{ "glutWireDodecahedron", (const GLUTproc) glutWireDodecahedron },
{ "glutSolidDodecahedron", (const GLUTproc) glutSolidDodecahedron },
{ "glutWireTeapot", (const GLUTproc) glutWireTeapot },
{ "glutSolidTeapot", (const GLUTproc) glutSolidTeapot },
{ "glutWireOctahedron", (const GLUTproc) glutWireOctahedron },
{ "glutSolidOctahedron", (const GLUTproc) glutSolidOctahedron },
{ "glutWireTetrahedron", (const GLUTproc) glutWireTetrahedron },
{ "glutSolidTetrahedron", (const GLUTproc) glutSolidTetrahedron },
{ "glutWireIcosahedron", (const GLUTproc) glutWireIcosahedron },
{ "glutSolidIcosahedron", (const GLUTproc) glutSolidIcosahedron },
{ "glutVideoResizeGet", (const GLUTproc) glutVideoResizeGet },
{ "glutSetupVideoResizing", (const GLUTproc) glutSetupVideoResizing },
{ "glutStopVideoResizing", (const GLUTproc) glutStopVideoResizing },
{ "glutVideoResize", (const GLUTproc) glutVideoResize },
{ "glutVideoPan", (const GLUTproc) glutVideoPan },
{ "glutReportErrors", (const GLUTproc) glutReportErrors },
// { "glutIgnoreKeyRepeat", (const GLUTproc) glutIgnoreKeyRepeat },
// { "glutSetKeyRepeat", (const GLUTproc) glutSetKeyRepeat },
// { "glutForceJoystickFunc", (const GLUTproc) glutForceJoystickFunc },
// { "glutGameModeString", (const GLUTproc) glutGameModeString },
// { "glutEnterGameMode", (const GLUTproc) glutEnterGameMode },
// { "glutLeaveGameMode", (const GLUTproc) glutLeaveGameMode },
// { "glutGameModeGet", (const GLUTproc) glutGameModeGet },
{ NULL, NULL }
};
/* XXX This isn't an official GLUT function, yet */
GLUTproc 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 glut_functions[i].address;
}
/* Try core GL functions */
#if defined(_WIN32)
return (GLUTProc) wglGetProcAddress((LPCSTR) procName);
#elif defined(GLX_ARB_get_proc_address)
return (GLUTProc) glXGetProcAddressARB((const GLubyte *) procName);
#else
return NULL;
#endif
}
/* ENDCENTRY */
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