Guarantee consistency of names/addresses in glutGetProcAddress by
using a macro. In addition, this avoids any non-constant initializer issues which might be raised when using WinDoze GCCs. The additional code overhead is negligible, at least for x86 (a few instructions per name). git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@621 7f0cb862-5218-0410-a997-914c9d46530a
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@ -1016,3 +1016,8 @@ mouse pointers don't work) on the way:
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**************************************************************************
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(265) Lowering minimum autoconf version required.
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(266) Guarantee consistency of names/addresses in glutGetProcAddress by
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using a macro. In addition, this avoids any non-constant initializer
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issues which might be raised when using WinDoze GCCs. The additional code
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overhead is negligible, at least for x86 (a few instructions per name).
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@ -29,168 +29,170 @@
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#include <GL/freeglut.h>
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#include "freeglut_internal.h"
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struct name_address_pair
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static GLUTproc fghGetProcAddress( const char* procName )
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{
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const char *name;
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GLUTproc address;
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};
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/* optimization: quick initial check */
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if( strncmp( procName, "glut", 4 ) != 0 )
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return NULL;
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static struct name_address_pair glut_functions[] =
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{
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{ "glutInit", (GLUTproc) glutInit },
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{ "glutInitDisplayMode", (GLUTproc) glutInitDisplayMode },
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{ "glutInitDisplayString", (GLUTproc) glutInitDisplayString },
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{ "glutInitWindowPosition", (GLUTproc) glutInitWindowPosition },
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{ "glutInitWindowSize", (GLUTproc) glutInitWindowSize },
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{ "glutMainLoop", (GLUTproc) glutMainLoop },
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{ "glutCreateWindow", (GLUTproc) glutCreateWindow },
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{ "glutCreateSubWindow", (GLUTproc) glutCreateSubWindow },
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{ "glutDestroyWindow", (GLUTproc) glutDestroyWindow },
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{ "glutPostRedisplay", (GLUTproc) glutPostRedisplay },
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{ "glutPostWindowRedisplay", (GLUTproc) glutPostWindowRedisplay },
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{ "glutSwapBuffers", (GLUTproc) glutSwapBuffers },
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{ "glutGetWindow", (GLUTproc) glutGetWindow },
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{ "glutSetWindow", (GLUTproc) glutSetWindow },
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{ "glutSetWindowTitle", (GLUTproc) glutSetWindowTitle },
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{ "glutSetIconTitle", (GLUTproc) glutSetIconTitle },
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{ "glutPositionWindow", (GLUTproc) glutPositionWindow },
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{ "glutReshapeWindow", (GLUTproc) glutReshapeWindow },
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{ "glutPopWindow", (GLUTproc) glutPopWindow },
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{ "glutPushWindow", (GLUTproc) glutPushWindow },
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{ "glutIconifyWindow", (GLUTproc) glutIconifyWindow },
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{ "glutShowWindow", (GLUTproc) glutShowWindow },
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{ "glutHideWindow", (GLUTproc) glutHideWindow },
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{ "glutFullScreen", (GLUTproc) glutFullScreen },
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{ "glutSetCursor", (GLUTproc) glutSetCursor },
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{ "glutWarpPointer", (GLUTproc) glutWarpPointer },
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{ "glutEstablishOverlay", (GLUTproc) glutEstablishOverlay },
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{ "glutRemoveOverlay", (GLUTproc) glutRemoveOverlay },
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{ "glutUseLayer", (GLUTproc) glutUseLayer },
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{ "glutPostOverlayRedisplay", (GLUTproc) glutPostOverlayRedisplay },
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{ "glutPostWindowOverlayRedisplay", (GLUTproc) glutPostWindowOverlayRedisplay },
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{ "glutShowOverlay", (GLUTproc) glutShowOverlay },
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{ "glutHideOverlay", (GLUTproc) glutHideOverlay },
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{ "glutCreateMenu", (GLUTproc) glutCreateMenu },
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{ "glutDestroyMenu", (GLUTproc) glutDestroyMenu },
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{ "glutGetMenu", (GLUTproc) glutGetMenu },
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{ "glutSetMenu", (GLUTproc) glutSetMenu },
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{ "glutAddMenuEntry", (GLUTproc) glutAddMenuEntry },
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{ "glutAddSubMenu", (GLUTproc) glutAddSubMenu },
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{ "glutChangeToMenuEntry", (GLUTproc) glutChangeToMenuEntry },
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{ "glutChangeToSubMenu", (GLUTproc) glutChangeToSubMenu },
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{ "glutRemoveMenuItem", (GLUTproc) glutRemoveMenuItem },
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{ "glutAttachMenu", (GLUTproc) glutAttachMenu },
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{ "glutDetachMenu", (GLUTproc) glutDetachMenu },
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{ "glutDisplayFunc", (GLUTproc) glutDisplayFunc },
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{ "glutReshapeFunc", (GLUTproc) glutReshapeFunc },
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{ "glutKeyboardFunc", (GLUTproc) glutKeyboardFunc },
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{ "glutMouseFunc", (GLUTproc) glutMouseFunc },
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{ "glutMotionFunc", (GLUTproc) glutMotionFunc },
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{ "glutPassiveMotionFunc", (GLUTproc) glutPassiveMotionFunc },
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{ "glutEntryFunc", (GLUTproc) glutEntryFunc },
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{ "glutVisibilityFunc", (GLUTproc) glutVisibilityFunc },
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{ "glutIdleFunc", (GLUTproc) glutIdleFunc },
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{ "glutTimerFunc", (GLUTproc) glutTimerFunc },
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{ "glutMenuStateFunc", (GLUTproc) glutMenuStateFunc },
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{ "glutSpecialFunc", (GLUTproc) glutSpecialFunc },
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{ "glutSpaceballMotionFunc", (GLUTproc) glutSpaceballMotionFunc },
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{ "glutSpaceballRotateFunc", (GLUTproc) glutSpaceballRotateFunc },
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{ "glutSpaceballButtonFunc", (GLUTproc) glutSpaceballButtonFunc },
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{ "glutButtonBoxFunc", (GLUTproc) glutButtonBoxFunc },
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{ "glutDialsFunc", (GLUTproc) glutDialsFunc },
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{ "glutTabletMotionFunc", (GLUTproc) glutTabletMotionFunc },
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{ "glutTabletButtonFunc", (GLUTproc) glutTabletButtonFunc },
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{ "glutMenuStatusFunc", (GLUTproc) glutMenuStatusFunc },
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{ "glutOverlayDisplayFunc", (GLUTproc) glutOverlayDisplayFunc },
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{ "glutWindowStatusFunc", (GLUTproc) glutWindowStatusFunc },
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{ "glutKeyboardUpFunc", (GLUTproc) glutKeyboardUpFunc },
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{ "glutSpecialUpFunc", (GLUTproc) glutSpecialUpFunc },
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#define CHECK_NAME(x) if( strcmp( procName, #x ) == 0) return (GLUTproc)x;
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CHECK_NAME(glutInit);
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CHECK_NAME(glutInitDisplayMode);
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CHECK_NAME(glutInitDisplayString);
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CHECK_NAME(glutInitWindowPosition);
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CHECK_NAME(glutInitWindowSize);
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CHECK_NAME(glutMainLoop);
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CHECK_NAME(glutCreateWindow);
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CHECK_NAME(glutCreateSubWindow);
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CHECK_NAME(glutDestroyWindow);
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CHECK_NAME(glutPostRedisplay);
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CHECK_NAME(glutPostWindowRedisplay);
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CHECK_NAME(glutSwapBuffers);
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CHECK_NAME(glutGetWindow);
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CHECK_NAME(glutSetWindow);
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CHECK_NAME(glutSetWindowTitle);
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CHECK_NAME(glutSetIconTitle);
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CHECK_NAME(glutPositionWindow);
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CHECK_NAME(glutReshapeWindow);
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CHECK_NAME(glutPopWindow);
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CHECK_NAME(glutPushWindow);
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CHECK_NAME(glutIconifyWindow);
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CHECK_NAME(glutShowWindow);
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CHECK_NAME(glutHideWindow);
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CHECK_NAME(glutFullScreen);
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CHECK_NAME(glutSetCursor);
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CHECK_NAME(glutWarpPointer);
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CHECK_NAME(glutEstablishOverlay);
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CHECK_NAME(glutRemoveOverlay);
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CHECK_NAME(glutUseLayer);
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CHECK_NAME(glutPostOverlayRedisplay);
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CHECK_NAME(glutPostWindowOverlayRedisplay);
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CHECK_NAME(glutShowOverlay);
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CHECK_NAME(glutHideOverlay);
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CHECK_NAME(glutCreateMenu);
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CHECK_NAME(glutDestroyMenu);
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CHECK_NAME(glutGetMenu);
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CHECK_NAME(glutSetMenu);
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CHECK_NAME(glutAddMenuEntry);
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CHECK_NAME(glutAddSubMenu);
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CHECK_NAME(glutChangeToMenuEntry);
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CHECK_NAME(glutChangeToSubMenu);
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CHECK_NAME(glutRemoveMenuItem);
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CHECK_NAME(glutAttachMenu);
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CHECK_NAME(glutDetachMenu);
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CHECK_NAME(glutDisplayFunc);
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CHECK_NAME(glutReshapeFunc);
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CHECK_NAME(glutKeyboardFunc);
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CHECK_NAME(glutMouseFunc);
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CHECK_NAME(glutMotionFunc);
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CHECK_NAME(glutPassiveMotionFunc);
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CHECK_NAME(glutEntryFunc);
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CHECK_NAME(glutVisibilityFunc);
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CHECK_NAME(glutIdleFunc);
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CHECK_NAME(glutTimerFunc);
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CHECK_NAME(glutMenuStateFunc);
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CHECK_NAME(glutSpecialFunc);
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CHECK_NAME(glutSpaceballMotionFunc);
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CHECK_NAME(glutSpaceballRotateFunc);
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CHECK_NAME(glutSpaceballButtonFunc);
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CHECK_NAME(glutButtonBoxFunc);
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CHECK_NAME(glutDialsFunc);
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CHECK_NAME(glutTabletMotionFunc);
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CHECK_NAME(glutTabletButtonFunc);
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CHECK_NAME(glutMenuStatusFunc);
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CHECK_NAME(glutOverlayDisplayFunc);
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CHECK_NAME(glutWindowStatusFunc);
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CHECK_NAME(glutKeyboardUpFunc);
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CHECK_NAME(glutSpecialUpFunc);
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#if !TARGET_HOST_WINCE
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{ "glutJoystickFunc", (GLUTproc) glutJoystickFunc },
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CHECK_NAME(glutJoystickFunc);
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#endif /* !TARGET_HOST_WINCE */
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{ "glutSetColor", (GLUTproc) glutSetColor },
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{ "glutGetColor", (GLUTproc) glutGetColor },
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{ "glutCopyColormap", (GLUTproc) glutCopyColormap },
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{ "glutGet", (GLUTproc) glutGet },
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{ "glutDeviceGet", (GLUTproc) glutDeviceGet },
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{ "glutExtensionSupported", (GLUTproc) glutExtensionSupported },
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{ "glutGetModifiers", (GLUTproc) glutGetModifiers },
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{ "glutLayerGet", (GLUTproc) glutLayerGet },
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{ "glutBitmapCharacter", (GLUTproc) glutBitmapCharacter },
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{ "glutBitmapWidth", (GLUTproc) glutBitmapWidth },
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{ "glutStrokeCharacter", (GLUTproc) glutStrokeCharacter },
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{ "glutStrokeWidth", (GLUTproc) glutStrokeWidth },
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{ "glutBitmapLength", (GLUTproc) glutBitmapLength },
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{ "glutStrokeLength", (GLUTproc) glutStrokeLength },
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{ "glutWireSphere", (GLUTproc) glutWireSphere },
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{ "glutSolidSphere", (GLUTproc) glutSolidSphere },
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{ "glutWireCone", (GLUTproc) glutWireCone },
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{ "glutSolidCone", (GLUTproc) glutSolidCone },
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{ "glutWireCube", (GLUTproc) glutWireCube },
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{ "glutSolidCube", (GLUTproc) glutSolidCube },
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{ "glutWireTorus", (GLUTproc) glutWireTorus },
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{ "glutSolidTorus", (GLUTproc) glutSolidTorus },
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{ "glutWireDodecahedron", (GLUTproc) glutWireDodecahedron },
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{ "glutSolidDodecahedron", (GLUTproc) glutSolidDodecahedron },
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{ "glutWireTeapot", (GLUTproc) glutWireTeapot },
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{ "glutSolidTeapot", (GLUTproc) glutSolidTeapot },
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{ "glutWireOctahedron", (GLUTproc) glutWireOctahedron },
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{ "glutSolidOctahedron", (GLUTproc) glutSolidOctahedron },
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{ "glutWireTetrahedron", (GLUTproc) glutWireTetrahedron },
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{ "glutSolidTetrahedron", (GLUTproc) glutSolidTetrahedron },
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{ "glutWireIcosahedron", (GLUTproc) glutWireIcosahedron },
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{ "glutSolidIcosahedron", (GLUTproc) glutSolidIcosahedron },
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{ "glutVideoResizeGet", (GLUTproc) glutVideoResizeGet },
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{ "glutSetupVideoResizing", (GLUTproc) glutSetupVideoResizing },
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{ "glutStopVideoResizing", (GLUTproc) glutStopVideoResizing },
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{ "glutVideoResize", (GLUTproc) glutVideoResize },
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{ "glutVideoPan", (GLUTproc) glutVideoPan },
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{ "glutReportErrors", (GLUTproc) glutReportErrors },
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{ "glutIgnoreKeyRepeat", (GLUTproc) glutIgnoreKeyRepeat },
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{ "glutSetKeyRepeat", (GLUTproc) glutSetKeyRepeat },
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CHECK_NAME(glutSetColor);
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CHECK_NAME(glutGetColor);
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CHECK_NAME(glutCopyColormap);
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CHECK_NAME(glutGet);
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CHECK_NAME(glutDeviceGet);
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CHECK_NAME(glutExtensionSupported);
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CHECK_NAME(glutGetModifiers);
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CHECK_NAME(glutLayerGet);
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CHECK_NAME(glutBitmapCharacter);
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CHECK_NAME(glutBitmapWidth);
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CHECK_NAME(glutStrokeCharacter);
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CHECK_NAME(glutStrokeWidth);
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CHECK_NAME(glutBitmapLength);
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CHECK_NAME(glutStrokeLength);
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CHECK_NAME(glutWireSphere);
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CHECK_NAME(glutSolidSphere);
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CHECK_NAME(glutWireCone);
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CHECK_NAME(glutSolidCone);
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CHECK_NAME(glutWireCube);
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CHECK_NAME(glutSolidCube);
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CHECK_NAME(glutWireTorus);
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CHECK_NAME(glutSolidTorus);
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CHECK_NAME(glutWireDodecahedron);
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CHECK_NAME(glutSolidDodecahedron);
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CHECK_NAME(glutWireTeapot);
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CHECK_NAME(glutSolidTeapot);
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CHECK_NAME(glutWireOctahedron);
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CHECK_NAME(glutSolidOctahedron);
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CHECK_NAME(glutWireTetrahedron);
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CHECK_NAME(glutSolidTetrahedron);
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CHECK_NAME(glutWireIcosahedron);
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CHECK_NAME(glutSolidIcosahedron);
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CHECK_NAME(glutVideoResizeGet);
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CHECK_NAME(glutSetupVideoResizing);
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CHECK_NAME(glutStopVideoResizing);
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CHECK_NAME(glutVideoResize);
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CHECK_NAME(glutVideoPan);
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CHECK_NAME(glutReportErrors);
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CHECK_NAME(glutIgnoreKeyRepeat);
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CHECK_NAME(glutSetKeyRepeat);
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#if !TARGET_HOST_WINCE
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{ "glutForceJoystickFunc", (GLUTproc) glutForceJoystickFunc },
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{ "glutGameModeString", (GLUTproc) glutGameModeString },
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{ "glutEnterGameMode", (GLUTproc) glutEnterGameMode },
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{ "glutLeaveGameMode", (GLUTproc) glutLeaveGameMode },
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{ "glutGameModeGet", (GLUTproc) glutGameModeGet },
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CHECK_NAME(glutForceJoystickFunc);
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CHECK_NAME(glutGameModeString);
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CHECK_NAME(glutEnterGameMode);
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CHECK_NAME(glutLeaveGameMode);
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CHECK_NAME(glutGameModeGet);
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#endif /* !TARGET_HOST_WINCE */
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/* freeglut extensions */
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{ "glutMainLoopEvent", (GLUTproc) glutMainLoopEvent },
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{ "glutLeaveMainLoop", (GLUTproc) glutLeaveMainLoop },
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{ "glutCloseFunc", (GLUTproc) glutCloseFunc },
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{ "glutWMCloseFunc", (GLUTproc) glutWMCloseFunc },
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{ "glutMenuDestroyFunc", (GLUTproc) glutMenuDestroyFunc },
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{ "glutSetOption", (GLUTproc) glutSetOption },
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{ "glutSetWindowData", (GLUTproc) glutSetWindowData },
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{ "glutGetWindowData", (GLUTproc) glutGetWindowData },
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{ "glutSetMenuData", (GLUTproc) glutSetMenuData },
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{ "glutGetMenuData", (GLUTproc) glutGetMenuData },
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{ "glutBitmapHeight", (GLUTproc) glutBitmapHeight },
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{ "glutStrokeHeight", (GLUTproc) glutStrokeHeight },
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{ "glutBitmapString", (GLUTproc) glutBitmapString },
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{ "glutStrokeString", (GLUTproc) glutStrokeString },
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{ "glutWireRhombicDodecahedron", (GLUTproc) glutWireRhombicDodecahedron },
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{ "glutSolidRhombicDodecahedron", (GLUTproc) glutSolidRhombicDodecahedron },
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{ "glutWireSierpinskiSponge", (GLUTproc) glutWireSierpinskiSponge },
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{ "glutSolidSierpinskiSponge", (GLUTproc) glutSolidSierpinskiSponge },
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{ "glutWireCylinder", (GLUTproc) glutWireCylinder },
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{ "glutSolidCylinder", (GLUTproc) glutSolidCylinder },
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{ "glutGetProcAddress", (GLUTproc) glutGetProcAddress },
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{ "glutMouseWheelFunc", (GLUTproc) glutMouseWheelFunc },
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{ NULL, NULL }
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};
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CHECK_NAME(glutMainLoopEvent);
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CHECK_NAME(glutLeaveMainLoop);
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CHECK_NAME(glutCloseFunc);
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CHECK_NAME(glutWMCloseFunc);
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CHECK_NAME(glutMenuDestroyFunc);
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CHECK_NAME(glutSetOption);
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CHECK_NAME(glutSetWindowData);
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CHECK_NAME(glutGetWindowData);
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CHECK_NAME(glutSetMenuData);
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CHECK_NAME(glutGetMenuData);
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CHECK_NAME(glutBitmapHeight);
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CHECK_NAME(glutStrokeHeight);
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CHECK_NAME(glutBitmapString);
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CHECK_NAME(glutStrokeString);
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CHECK_NAME(glutWireRhombicDodecahedron);
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CHECK_NAME(glutSolidRhombicDodecahedron);
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CHECK_NAME(glutWireSierpinskiSponge);
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CHECK_NAME(glutSolidSierpinskiSponge);
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CHECK_NAME(glutWireCylinder);
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CHECK_NAME(glutSolidCylinder);
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CHECK_NAME(glutGetProcAddress);
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CHECK_NAME(glutMouseWheelFunc);
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#undef CHECK_NAME
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return NULL;
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}
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GLUTproc FGAPIENTRY
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glutGetProcAddress( const char *procName )
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{
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/* Try GLUT functions first */
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int i;
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GLUTproc p;
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FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGetProcAddress" );
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for( i = 0; glut_functions[ i ].name; i++ )
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if( strcmp( glut_functions[ i ].name, procName ) == 0)
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return glut_functions[ i ].address;
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/* Try GLUT functions first */
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p = fghGetProcAddress( procName );
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if( p != NULL )
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return p;
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/* Try core GL functions */
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#if TARGET_HOST_WIN32 || TARGET_HOST_WINCE
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Reference in New Issue
Block a user