diff options
Diffstat (limited to 'src/glut/os2/glut_event.cpp')
| -rw-r--r-- | src/glut/os2/glut_event.cpp | 1399 |
1 files changed, 0 insertions, 1399 deletions
diff --git a/src/glut/os2/glut_event.cpp b/src/glut/os2/glut_event.cpp deleted file mode 100644 index c556ef28265..00000000000 --- a/src/glut/os2/glut_event.cpp +++ /dev/null @@ -1,1399 +0,0 @@ -/* glut_event.c */
-/* Copyright (c) Mark J. Kilgard, 1994, 1995, 1996, 1997, 1998. */
-
-/* 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. */
-
-#ifdef __VMS
-#include <GL/vms_x_fix.h>
-#endif
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <errno.h>
-#include <assert.h>
-#include <string.h> /* Some FD_ZERO macros use memset without
- prototyping memset. */
-
-/* Much of the following #ifdef logic to include the proper
- prototypes for the select system call is based on logic
- from the X11R6.3 version of <X11/Xpoll.h>. */
-
-#if !defined(_WIN32)
-# ifdef __sgi
-# include <bstring.h> /* prototype for bzero used by FD_ZERO */
-# endif
-# if (defined(SVR4) || defined(CRAY) || defined(AIXV3)) && !defined(FD_SETSIZE)
-# include <sys/select.h> /* select system call interface */
-# ifdef luna
-# include <sysent.h>
-# endif
-# endif
- /* AIX 4.2 fubar-ed <sys/select.h>, so go to heroic measures to get it */
-# if defined(AIXV4) && !defined(NFDBITS)
-# include <sys/select.h>
-# endif
-#endif /* !_WIN32 */
-
-#include <sys/types.h>
-
-#if defined(__OS2__)
-//??? нафига ?? # include <sys/time.h>
-#elif !defined(_WIN32)
-# if defined(__vms) && ( __VMS_VER < 70000000 )
-# include <sys/time.h>
-# else
-# ifndef __vms
-# include <sys/time.h>
-# endif
-# endif
-# include <unistd.h>
-# include <X11/Xlib.h>
-# include <X11/keysym.h>
-#else
-# ifdef __CYGWIN32__
-# include <sys/time.h>
-# else
-# include <sys/timeb.h>
-# endif
-# ifdef __hpux
- /* XXX Bert Gijsbers <bert@mc.bio.uva.nl> reports that HP-UX
- needs different keysyms for the End, Insert, and Delete keys
- to work on an HP 715. It would be better if HP generated
- standard keysyms for standard keys. */
-# include <X11/HPkeysym.h>
-# endif
-#endif /* !_WIN32 */
-
-#include "glutint.h"
-
-#if defined(__vms) && ( __VMS_VER < 70000000 )
-#include <ssdef.h>
-#include <psldef.h>
-extern int SYS$CLREF(int efn);
-extern int SYS$SETIMR(unsigned int efn, struct timeval6 *timeout, void *ast,
- unsigned int request_id, unsigned int flags);
-extern int SYS$WFLOR(unsigned int efn, unsigned int mask);
-extern int SYS$CANTIM(unsigned int request_id, unsigned int mode);
-#endif /* __vms, VMs 6.2 or earlier */
-
-static GLUTtimer *freeTimerList = NULL;
-
-GLUTidleCB __glutIdleFunc = NULL;
-GLUTtimer *__glutTimerList = NULL;
-#ifdef SUPPORT_FORTRAN
-GLUTtimer *__glutNewTimer;
-#endif
-GLUTwindow *__glutWindowWorkList = NULL;
-GLUTmenu *__glutMappedMenu;
-GLUTmenu *__glutCurrentMenu = NULL;
-
-void (*__glutUpdateInputDeviceMaskFunc) (GLUTwindow *);
-#if !defined(_WIN32) && !defined(__OS2__)
-void (*__glutMenuItemEnterOrLeave)(GLUTmenuItem * item, int num, int type) = NULL;
-void (*__glutFinishMenu)(Window win, int x, int y);
-void (*__glutPaintMenu)(GLUTmenu * menu);
-void (*__glutStartMenu)(GLUTmenu * menu, GLUTwindow * window, int x, int y, int x_win, int y_win);
-GLUTmenu * (*__glutGetMenuByNum)(int menunum);
-GLUTmenuItem * (*__glutGetMenuItem)(GLUTmenu * menu, Window win, int *which);
-GLUTmenu * (*__glutGetMenu)(Window win);
-#endif
-
-Atom __glutMotifHints = None;
-/* Modifier mask of ~0 implies not in core input callback. */
-unsigned int __glutModifierMask = (unsigned int) ~0;
-int __glutWindowDamaged = 0;
-
-void GLUTAPIENTRY
-glutIdleFunc(GLUTidleCB idleFunc)
-{
- __glutIdleFunc = idleFunc;
-}
-
-void GLUTAPIENTRY
-glutTimerFunc(unsigned int interval, GLUTtimerCB timerFunc, int value)
-{
- GLUTtimer *timer, *other;
- GLUTtimer **prevptr;
-#ifdef OLD_VMS
- struct timeval6 now;
-#else
- struct timeval now;
-#endif
-
- if (!timerFunc)
- return;
-
- if (freeTimerList) {
- timer = freeTimerList;
- freeTimerList = timer->next;
- } else {
- timer = (GLUTtimer *) malloc(sizeof(GLUTtimer));
- if (!timer)
- __glutFatalError("out of memory.");
- }
-
- timer->func = timerFunc;
-#if defined(__vms) && ( __VMS_VER < 70000000 )
- /* VMS time is expressed in units of 100 ns */
- timer->timeout.val = interval * TICKS_PER_MILLISECOND;
-#else
- timer->timeout.tv_sec = (int) interval / 1000;
- timer->timeout.tv_usec = (int) (interval % 1000) * 1000;
-#endif
- timer->value = value;
- timer->next = NULL;
- GETTIMEOFDAY(&now);
- ADD_TIME(timer->timeout, timer->timeout, now);
- prevptr = &__glutTimerList;
- other = *prevptr;
- while (other && IS_AFTER(other->timeout, timer->timeout)) {
- prevptr = &other->next;
- other = *prevptr;
- }
- timer->next = other;
-#ifdef SUPPORT_FORTRAN
- __glutNewTimer = timer; /* for Fortran binding! */
-#endif
- *prevptr = timer;
-}
-
-void
-handleTimeouts(void)
-{
-#ifdef OLD_VMS
- struct timeval6 now;
-#else
- struct timeval now;
-#endif
- GLUTtimer *timer;
-
- /* Assumption is that __glutTimerList is already determined
- to be non-NULL. */
- GETTIMEOFDAY(&now);
- while (IS_AT_OR_AFTER(__glutTimerList->timeout, now)) {
- timer = __glutTimerList;
- timer->func(timer->value);
- __glutTimerList = timer->next;
- timer->next = freeTimerList;
- freeTimerList = timer;
- if (!__glutTimerList)
- break;
- }
-}
-
-void
-__glutPutOnWorkList(GLUTwindow * window, int workMask)
-{
- if (window->workMask) {
- /* Already on list; just OR in new workMask. */
- window->workMask |= workMask;
- } else {
- /* Update work mask and add to window work list. */
- window->workMask = workMask;
- /* Assert that if the window does not have a
- workMask already, the window should definitely
- not be the head of the work list. */
- assert(window != __glutWindowWorkList);
- window->prevWorkWin = __glutWindowWorkList;
- __glutWindowWorkList = window;
- }
-}
-
-void
-__glutPostRedisplay(GLUTwindow * window, int layerMask)
-{
- int shown = (layerMask & (GLUT_REDISPLAY_WORK | GLUT_REPAIR_WORK)) ?
- window->shownState : window->overlay->shownState;
-
- /* Post a redisplay if the window is visible (or the
- visibility of the window is unknown, ie. window->visState
- == -1) _and_ the layer is known to be shown. */
- if (window->visState != GLUT_HIDDEN
- && window->visState != GLUT_FULLY_COVERED && shown) {
- __glutPutOnWorkList(window, layerMask);
- }
-}
-
-/* CENTRY */
-void GLUTAPIENTRY
-glutPostRedisplay(void)
-{
- __glutPostRedisplay(__glutCurrentWindow, GLUT_REDISPLAY_WORK);
-}
-
-/* The advantage of this routine is that it saves the cost of a
- glutSetWindow call (entailing an expensive OpenGL context switch),
- particularly useful when multiple windows need redisplays posted at
- the same times. See also glutPostWindowOverlayRedisplay. */
-void GLUTAPIENTRY
-glutPostWindowRedisplay(int win)
-{
- __glutPostRedisplay(__glutWindowList[win - 1], GLUT_REDISPLAY_WORK);
-}
-
-/* ENDCENTRY */
-static GLUTeventParser *eventParserList = NULL;
-
-/* __glutRegisterEventParser allows another module to register
- to intercept X events types not otherwise acted on by the
- GLUT processEventsAndTimeouts routine. The X Input
- extension support code uses an event parser for handling X
- Input extension events. */
-
-void
-__glutRegisterEventParser(GLUTeventParser * parser)
-{
- parser->next = eventParserList;
- eventParserList = parser;
-}
-
-static void
-markWindowHidden(GLUTwindow * window)
-{
- if (GLUT_HIDDEN != window->visState) {
- GLUTwindow *child;
-
- if (window->windowStatus) {
- window->visState = GLUT_HIDDEN;
- __glutSetWindow(window);
- window->windowStatus(GLUT_HIDDEN);
- }
- /* An unmap is only reported on a single window; its
- descendents need to know they are no longer visible. */
- child = window->children;
- while (child) {
- markWindowHidden(child);
- child = child->siblings;
- }
- }
-}
-
-#if !defined(_WIN32) && !defined(__OS2__)
-
-static void
-purgeStaleWindow(Window win)
-{
- GLUTstale **pEntry = &__glutStaleWindowList;
- GLUTstale *entry = __glutStaleWindowList;
-
- /* Tranverse singly-linked stale window list look for the
- window ID. */
- while (entry) {
- if (entry->win == win) {
- /* Found it; delete it. */
- *pEntry = entry->next;
- free(entry);
- return;
- } else {
- pEntry = &entry->next;
- entry = *pEntry;
- }
- }
-}
-
-/* Unlike XNextEvent, if a signal arrives,
- interruptibleXNextEvent will return (with a zero return
- value). This helps GLUT drop out of XNextEvent if a signal
- is delivered. The intent is so that a GLUT program can call
- glutIdleFunc in a signal handler to register an idle func
- and then immediately get dropped into the idle func (after
- returning from the signal handler). The idea is to make
- GLUT's main loop reliably interruptible by signals. */
-static int
-interruptibleXNextEvent(Display * dpy, XEvent * event)
-{
- fd_set fds;
- int rc;
-
- /* Flush X protocol since XPending does not do this
- implicitly. */
- XFlush(__glutDisplay);
- for (;;) {
- if (XPending(__glutDisplay)) {
- XNextEvent(dpy, event);
- return 1;
- }
-#ifndef VMS
- /* the combination ConectionNumber-select is buggy on VMS. Sometimes it
- * fails. This part of the code hangs the program on VMS7.2. But even
- * without it the program seems to run correctly.
- * Note that this is a bug in the VMS/DECWindows run-time-libraries.
- * Compaq engeneering does not want or is not able to make a fix.
- * (last sentence is a quotation from Compaq when I reported the
- * problem January 2000) */
- FD_ZERO(&fds);
- FD_SET(__glutConnectionFD, &fds);
- rc = select(__glutConnectionFD + 1, &fds, NULL, NULL, NULL);
- if (rc < 0) {
- if (errno == EINTR) {
- return 0;
- } else {
- __glutFatalError("select error.");
- }
- }
-#endif
- }
-}
-
-#endif
-
-static void
-processEventsAndTimeouts(void)
-{
- do {
-#if defined(__OS2__)
- QMSG qmsg; /* message from message queue */
- extern HAB hab; /* PM anchor block handle */
-
- if(! WinGetMsg( hab, &qmsg, 0UL, 0UL, 0UL ) )
- exit(0);
- WinDispatchMsg( hab, /* PM anchor block handle */
- &qmsg ); /* pointer to message */
-
-#elif defined(_WIN32)
- MSG event;
-
- if(!GetMessage(&event, NULL, 0, 0)) /* bail if no more messages */
- exit(0);
- TranslateMessage(&event); /* translate virtual-key messages */
- DispatchMessage(&event); /* call the window proc */
- /* see win32_event.c for event (message) processing procedures */
-#else
- static int mappedMenuButton;
- GLUTeventParser *parser;
- XEvent event, ahead;
- GLUTwindow *window;
- GLUTkeyboardCB keyboard;
- GLUTspecialCB special;
- int gotEvent, width, height;
-
- gotEvent = interruptibleXNextEvent(__glutDisplay, &event);
- if (gotEvent) {
- switch (event.type) {
- case MappingNotify:
- XRefreshKeyboardMapping((XMappingEvent *) & event);
- break;
- case ConfigureNotify:
- window = __glutGetWindow(event.xconfigure.window);
- if (window) {
- if (window->win != event.xconfigure.window) {
- /* Ignore ConfigureNotify sent to the overlay
- planes. GLUT could get here because overlays
- select for StructureNotify events to receive
- DestroyNotify. */
- break;
- }
- width = event.xconfigure.width;
- height = event.xconfigure.height;
- if (width != window->width || height != window->height) {
- if (window->overlay) {
- XResizeWindow(__glutDisplay, window->overlay->win, width, height);
- }
- window->width = width;
- window->height = height;
- __glutSetWindow(window);
- /* Do not execute OpenGL out of sequence with
- respect to the XResizeWindow request! */
- glXWaitX();
- window->reshape(width, height);
- window->forceReshape = False;
- /* A reshape should be considered like posting a
- repair; this is necessary for the "Mesa
- glXSwapBuffers to repair damage" hack to operate
- correctly. Without it, there's not an initial
- back buffer render from which to blit from when
- damage happens to the window. */
- __glutPostRedisplay(window, GLUT_REPAIR_WORK);
- }
- }
- break;
- case Expose:
- /* compress expose events */
- while (XEventsQueued(__glutDisplay, QueuedAfterReading)
- > 0) {
- XPeekEvent(__glutDisplay, &ahead);
- if (ahead.type != Expose ||
- ahead.xexpose.window != event.xexpose.window) {
- break;
- }
- XNextEvent(__glutDisplay, &event);
- }
- if (event.xexpose.count == 0) {
- GLUTmenu *menu;
-
- if (__glutMappedMenu &&
- (menu = __glutGetMenu(event.xexpose.window))) {
- __glutPaintMenu(menu);
- } else {
- window = __glutGetWindow(event.xexpose.window);
- if (window) {
- if (window->win == event.xexpose.window) {
- __glutPostRedisplay(window, GLUT_REPAIR_WORK);
- } else if (window->overlay && window->overlay->win == event.xexpose.window) {
- __glutPostRedisplay(window, GLUT_OVERLAY_REPAIR_WORK);
- }
- }
- }
- } else {
- /* there are more exposes to read; wait to redisplay */
- }
- break;
- case ButtonPress:
- case ButtonRelease:
- if (__glutMappedMenu && event.type == ButtonRelease
- && mappedMenuButton == event.xbutton.button) {
- /* Menu is currently popped up and its button is
- released. */
- __glutFinishMenu(event.xbutton.window, event.xbutton.x, event.xbutton.y);
- } else {
- window = __glutGetWindow(event.xbutton.window);
- if (window) {
- GLUTmenu *menu;
- int menuNum;
-
- menuNum = window->menu[event.xbutton.button - 1];
- /* Make sure that __glutGetMenuByNum is only called if there
- really is a menu present. */
- if ((menuNum > 0) && (menu = __glutGetMenuByNum(menuNum))) {
- if (event.type == ButtonPress && !__glutMappedMenu) {
- __glutStartMenu(menu, window,
- event.xbutton.x_root, event.xbutton.y_root,
- event.xbutton.x, event.xbutton.y);
- mappedMenuButton = event.xbutton.button;
- } else {
- /* Ignore a release of a button with a menu
- attatched to it when no menu is popped up,
- or ignore a press when another menu is
- already popped up. */
- }
- } else if (window->mouse) {
- __glutSetWindow(window);
- __glutModifierMask = event.xbutton.state;
- window->mouse(event.xbutton.button - 1,
- event.type == ButtonRelease ?
- GLUT_UP : GLUT_DOWN,
- event.xbutton.x, event.xbutton.y);
- __glutModifierMask = ~0;
- } else {
- /* Stray mouse events. Ignore. */
- }
- } else {
- /* Window might have been destroyed and all the
- events for the window may not yet be received. */
- }
- }
- break;
- case MotionNotify:
- if (!__glutMappedMenu) {
- window = __glutGetWindow(event.xmotion.window);
- if (window) {
- /* If motion function registered _and_ buttons held
- * down, call motion function... */
- if (window->motion && event.xmotion.state &
- (Button1Mask | Button2Mask | Button3Mask)) {
- __glutSetWindow(window);
- window->motion(event.xmotion.x, event.xmotion.y);
- }
- /* If passive motion function registered _and_
- buttons not held down, call passive motion
- function... */
- else if (window->passive &&
- ((event.xmotion.state &
- (Button1Mask | Button2Mask | Button3Mask)) ==
- 0)) {
- __glutSetWindow(window);
- window->passive(event.xmotion.x,
- event.xmotion.y);
- }
- }
- } else {
- /* Motion events are thrown away when a pop up menu
- is active. */
- }
- break;
- case KeyPress:
- case KeyRelease:
- window = __glutGetWindow(event.xkey.window);
- if (!window) {
- break;
- }
- if (event.type == KeyPress) {
- keyboard = window->keyboard;
- } else {
-
- /* If we are ignoring auto repeated keys for this window,
- check if the next event in the X event queue is a KeyPress
- for the exact same key (and at the exact same time) as the
- key being released. The X11 protocol will send auto
- repeated keys as such KeyRelease/KeyPress pairs. */
-
- if (window->ignoreKeyRepeat) {
- if (XEventsQueued(__glutDisplay, QueuedAfterReading)) {
- XPeekEvent(__glutDisplay, &ahead);
- if (ahead.type == KeyPress
- && ahead.xkey.window == event.xkey.window
- && ahead.xkey.keycode == event.xkey.keycode
- && ahead.xkey.time == event.xkey.time) {
- /* Pop off the repeated KeyPress and ignore
- the auto repeated KeyRelease/KeyPress pair. */
- XNextEvent(__glutDisplay, &event);
- break;
- }
- }
- }
- keyboard = window->keyboardUp;
- }
- if (keyboard) {
- char tmp[1];
- int rc;
-
- rc = XLookupString(&event.xkey, tmp, sizeof(tmp),
- NULL, NULL);
- if (rc) {
- __glutSetWindow(window);
- __glutModifierMask = event.xkey.state;
- keyboard(tmp[0],
- event.xkey.x, event.xkey.y);
- __glutModifierMask = ~0;
- break;
- }
- }
- if (event.type == KeyPress) {
- special = window->special;
- } else {
- special = window->specialUp;
- }
- if (special) {
- KeySym ks;
- int key;
-
-/* Introduced in X11R6: (Partial list of) Keypad Functions. Define
- in place in case compiling against an older pre-X11R6
- X11/keysymdef.h file. */
-#ifndef XK_KP_Home
-#define XK_KP_Home 0xFF95
-#endif
-#ifndef XK_KP_Left
-#define XK_KP_Left 0xFF96
-#endif
-#ifndef XK_KP_Up
-#define XK_KP_Up 0xFF97
-#endif
-#ifndef XK_KP_Right
-#define XK_KP_Right 0xFF98
-#endif
-#ifndef XK_KP_Down
-#define XK_KP_Down 0xFF99
-#endif
-#ifndef XK_KP_Prior
-#define XK_KP_Prior 0xFF9A
-#endif
-#ifndef XK_KP_Next
-#define XK_KP_Next 0xFF9B
-#endif
-#ifndef XK_KP_End
-#define XK_KP_End 0xFF9C
-#endif
-#ifndef XK_KP_Insert
-#define XK_KP_Insert 0xFF9E
-#endif
-#ifndef XK_KP_Delete
-#define XK_KP_Delete 0xFF9F
-#endif
-
- ks = XLookupKeysym((XKeyEvent *) & event, 0);
- /* XXX Verbose, but makes no assumptions about keysym
- layout. */
- switch (ks) {
-/* *INDENT-OFF* */
- /* function keys */
- case XK_F1: key = GLUT_KEY_F1; break;
- case XK_F2: key = GLUT_KEY_F2; break;
- case XK_F3: key = GLUT_KEY_F3; break;
- case XK_F4: key = GLUT_KEY_F4; break;
- case XK_F5: key = GLUT_KEY_F5; break;
- case XK_F6: key = GLUT_KEY_F6; break;
- case XK_F7: key = GLUT_KEY_F7; break;
- case XK_F8: key = GLUT_KEY_F8; break;
- case XK_F9: key = GLUT_KEY_F9; break;
- case XK_F10: key = GLUT_KEY_F10; break;
- case XK_F11: key = GLUT_KEY_F11; break;
- case XK_F12: key = GLUT_KEY_F12; break;
- /* directional keys */
- case XK_KP_Left:
- case XK_Left: key = GLUT_KEY_LEFT; break;
- case XK_KP_Up: /* Introduced in X11R6. */
- case XK_Up: key = GLUT_KEY_UP; break;
- case XK_KP_Right: /* Introduced in X11R6. */
- case XK_Right: key = GLUT_KEY_RIGHT; break;
- case XK_KP_Down: /* Introduced in X11R6. */
- case XK_Down: key = GLUT_KEY_DOWN; break;
-/* *INDENT-ON* */
-
- case XK_KP_Prior: /* Introduced in X11R6. */
- case XK_Prior:
- /* XK_Prior same as X11R6's XK_Page_Up */
- key = GLUT_KEY_PAGE_UP;
- break;
- case XK_KP_Next: /* Introduced in X11R6. */
- case XK_Next:
- /* XK_Next same as X11R6's XK_Page_Down */
- key = GLUT_KEY_PAGE_DOWN;
- break;
- case XK_KP_Home: /* Introduced in X11R6. */
- case XK_Home:
- key = GLUT_KEY_HOME;
- break;
-#ifdef __hpux
- case XK_Select:
-#endif
- case XK_KP_End: /* Introduced in X11R6. */
- case XK_End:
- key = GLUT_KEY_END;
- break;
-#ifdef __hpux
- case XK_InsertChar:
-#endif
- case XK_KP_Insert: /* Introduced in X11R6. */
- case XK_Insert:
- key = GLUT_KEY_INSERT;
- break;
-#ifdef __hpux
- case XK_DeleteChar:
-#endif
- case XK_KP_Delete: /* Introduced in X11R6. */
- /* The Delete character is really an ASCII key. */
- __glutSetWindow(window);
- keyboard(127, /* ASCII Delete character. */
- event.xkey.x, event.xkey.y);
- goto skip;
- default:
- goto skip;
- }
- __glutSetWindow(window);
- __glutModifierMask = event.xkey.state;
- special(key, event.xkey.x, event.xkey.y);
- __glutModifierMask = ~0;
- skip:;
- }
- break;
- case EnterNotify:
- case LeaveNotify:
- if (event.xcrossing.mode != NotifyNormal ||
- event.xcrossing.detail == NotifyNonlinearVirtual ||
- event.xcrossing.detail == NotifyVirtual) {
-
- /* Careful to ignore Enter/LeaveNotify events that
- come from the pop-up menu pointer grab and ungrab.
- Also, ignore "virtual" Enter/LeaveNotify events
- since they represent the pointer passing through
- the window hierarchy without actually entering or
- leaving the actual real estate of a window. */
-
- break;
- }
- if (__glutMappedMenu) {
- GLUTmenuItem *item;
- int num;
-
- item = __glutGetMenuItem(__glutMappedMenu,
- event.xcrossing.window, &num);
- if (item) {
- __glutMenuItemEnterOrLeave(item, num, event.type);
- break;
- }
- }
- window = __glutGetWindow(event.xcrossing.window);
- if (window) {
- if (window->entry) {
- if (event.type == EnterNotify) {
-
- /* With overlays established, X can report two
- enter events for both the overlay and normal
- plane window. Do not generate a second enter
- callback if we reported one without an
- intervening leave. */
-
- if (window->entryState != EnterNotify) {
- int num = window->num;
- Window xid = window->win;
-
- window->entryState = EnterNotify;
- __glutSetWindow(window);
- window->entry(GLUT_ENTERED);
-
- if (__glutMappedMenu) {
-
- /* Do not generate any passive motion events
- when menus are in use. */
-
- } else {
-
- /* An EnterNotify event can result in a
- "compound" callback if a passive motion
- callback is also registered. In this case,
- be a little paranoid about the possibility
- the window could have been destroyed in the
- entry callback. */
-
- window = __glutWindowList[num];
- if (window && window->passive && window->win == xid) {
- __glutSetWindow(window);
- window->passive(event.xcrossing.x, event.xcrossing.y);
- }
- }
- }
- } else {
- if (window->entryState != LeaveNotify) {
-
- /* When an overlay is established for a window
- already mapped and with the pointer in it,
- the X server will generate a leave/enter
- event pair as the pointer leaves (without
- moving) from the normal plane X window to
- the newly mapped overlay X window (or vice
- versa). This enter/leave pair should not be
- reported to the GLUT program since the pair
- is a consequence of creating (or destroying)
- the overlay, not an actual leave from the
- GLUT window. */
-
- if (XEventsQueued(__glutDisplay, QueuedAfterReading)) {
- XPeekEvent(__glutDisplay, &ahead);
- if (ahead.type == EnterNotify &&
- __glutGetWindow(ahead.xcrossing.window) == window) {
- XNextEvent(__glutDisplay, &event);
- break;
- }
- }
- window->entryState = LeaveNotify;
- __glutSetWindow(window);
- window->entry(GLUT_LEFT);
- }
- }
- } else if (window->passive) {
- __glutSetWindow(window);
- window->passive(event.xcrossing.x, event.xcrossing.y);
- }
- }
- break;
- case UnmapNotify:
- /* MapNotify events are not needed to maintain
- visibility state since VisibilityNotify events will
- be delivered when a window becomes visible from
- mapping. However, VisibilityNotify events are not
- delivered when a window is unmapped (for the window
- or its children). */
- window = __glutGetWindow(event.xunmap.window);
- if (window) {
- if (window->win != event.xconfigure.window) {
- /* Ignore UnmapNotify sent to the overlay planes.
- GLUT could get here because overlays select for
- StructureNotify events to receive DestroyNotify.
- */
- break;
- }
- markWindowHidden(window);
- }
- break;
- case VisibilityNotify:
- window = __glutGetWindow(event.xvisibility.window);
- if (window) {
- /* VisibilityUnobscured+1 = GLUT_FULLY_RETAINED,
- VisibilityPartiallyObscured+1 =
- GLUT_PARTIALLY_RETAINED, VisibilityFullyObscured+1
- = GLUT_FULLY_COVERED. */
- int visState = event.xvisibility.state + 1;
-
- if (visState != window->visState) {
- if (window->windowStatus) {
- window->visState = visState;
- __glutSetWindow(window);
- window->windowStatus(visState);
- }
- }
- }
- break;
- case ClientMessage:
- if (event.xclient.data.l[0] == __glutWMDeleteWindow)
- exit(0);
- break;
- case DestroyNotify:
- purgeStaleWindow(event.xdestroywindow.window);
- break;
- case CirculateNotify:
- case CreateNotify:
- case GravityNotify:
- case ReparentNotify:
- /* Uninteresting to GLUT (but possible for GLUT to
- receive). */
- break;
- default:
- /* Pass events not directly handled by the GLUT main
- event loop to any event parsers that have been
- registered. In this way, X Input extension events
- are passed to the correct handler without forcing
- all GLUT programs to support X Input event handling.
- */
- parser = eventParserList;
- while (parser) {
- if (parser->func(&event))
- break;
- parser = parser->next;
- }
- break;
- }
- }
-#endif /* _WIN32 */
- if (__glutTimerList) {
- handleTimeouts();
- }
- }
- while (XPending(__glutDisplay));
-}
-
-static void
-waitForSomething(void)
-{
-#if defined(__vms) && ( __VMS_VER < 70000000 )
- static struct timeval6 zerotime =
- {0};
- unsigned int timer_efn;
-#define timer_id 'glut' /* random :-) number */
- unsigned int wait_mask;
-#else
- static struct timeval zerotime =
- {0, 0};
-#if defined(__OS2__)
-
-#elif !defined(_WIN32)
- fd_set fds;
-#endif
-#endif
-#ifdef OLD_VMS
- struct timeval6 now, timeout, waittime;
-#else
- struct timeval now, timeout, waittime;
-#endif
-#if !defined(_WIN32)
- int rc;
-#endif
-
- /* Flush X protocol since XPending does not do this
- implicitly. */
- XFlush(__glutDisplay);
- if (XPending(__glutDisplay)) {
- /* It is possible (but quite rare) that XFlush may have
- needed to wait for a writable X connection file
- descriptor, and in the process, may have had to read off
- X protocol from the file descriptor. If XPending is true,
- this case occured and we should avoid waiting in select
- since X protocol buffered within Xlib is due to be
- processed and potentially no more X protocol is on the
- file descriptor, so we would risk waiting improperly in
- select. */
- goto immediatelyHandleXinput;
- }
-#if defined(__vms) && ( __VMS_VER < 70000000 )
- timeout = __glutTimerList->timeout;
- GETTIMEOFDAY(&now);
- wait_mask = 1 << (__glutConnectionFD & 31);
- if (IS_AFTER(now, timeout)) {
- /* We need an event flag for the timer. */
- /* XXX The `right' way to do this is to use LIB$GET_EF, but
- since it needs to be in the same cluster as the EFN for
- the display, we will have hack it. */
- timer_efn = __glutConnectionFD - 1;
- if ((timer_efn / 32) != (__glutConnectionFD / 32)) {
- timer_efn = __glutConnectionFD + 1;
- }
- rc = SYS$CLREF(timer_efn);
- rc = SYS$SETIMR(timer_efn, &timeout, NULL, timer_id, 0);
- wait_mask |= 1 << (timer_efn & 31);
- } else {
- timer_efn = 0;
- }
- rc = SYS$WFLOR(__glutConnectionFD, wait_mask);
- if (timer_efn != 0 && SYS$CLREF(timer_efn) == SS$_WASCLR) {
- rc = SYS$CANTIM(timer_id, PSL$C_USER);
- }
- /* XXX There does not seem to be checking of "rc" in the code
- above. Can any of the SYS$ routines above fail? */
-#else /* not vms6.2 or lower */
-#if defined(__OS2__)
-
-#elif !defined(_WIN32)
- FD_ZERO(&fds);
- FD_SET(__glutConnectionFD, &fds);
-#endif
- timeout = __glutTimerList->timeout;
- GETTIMEOFDAY(&now);
- if (IS_AFTER(now, timeout)) {
- TIMEDELTA(waittime, timeout, now);
- } else {
- waittime = zerotime;
- }
-
-#if defined(__OS2__)
- DosSleep(0);
-#elif !defined(_WIN32)
- rc = select(__glutConnectionFD + 1, &fds,
- NULL, NULL, &waittime);
- if (rc < 0 && errno != EINTR)
- __glutFatalError("select error.");
-#else
-
- MsgWaitForMultipleObjects(0, NULL, FALSE,
- waittime.tv_sec*1000 + waittime.tv_usec/1000, QS_ALLINPUT);
-
-#endif
-#endif /* not vms6.2 or lower */
- /* Without considering the cause of select unblocking, check
- for pending X events and handle any timeouts (by calling
- processEventsAndTimeouts). We always look for X events
- even if select returned with 0 (indicating a timeout);
- otherwise we risk starving X event processing by continous
- timeouts. */
- if (XPending(__glutDisplay)) {
- immediatelyHandleXinput:
- processEventsAndTimeouts();
- } else {
- if (__glutTimerList)
- handleTimeouts();
- }
-}
-
-static void
-idleWait(void)
-{
- if (XPending(__glutDisplay)) {
- processEventsAndTimeouts();
- } else {
- if (__glutTimerList) {
- handleTimeouts();
- }
- }
- /* Make sure idle func still exists! */
- if (__glutIdleFunc) {
- __glutIdleFunc();
- }
-}
-
-static GLUTwindow **beforeEnd;
-
-static GLUTwindow *
-processWindowWorkList(GLUTwindow * window)
-{
- int workMask;
-
- if (window->prevWorkWin) {
- window->prevWorkWin = processWindowWorkList(window->prevWorkWin);
- } else {
- beforeEnd = &window->prevWorkWin;
- }
-
- /* Capture work mask for work that needs to be done to this
- window, then clear the window's work mask (excepting the
- dummy work bit, see below). Then, process the captured
- work mask. This allows callbacks in the processing the
- captured work mask to set the window's work mask for
- subsequent processing. */
-
- workMask = window->workMask;
- assert((workMask & GLUT_DUMMY_WORK) == 0);
-
- /* Set the dummy work bit, clearing all other bits, to
- indicate that the window is currently on the window work
- list _and_ that the window's work mask is currently being
- processed. This convinces __glutPutOnWorkList that this
- window is on the work list still. */
- window->workMask = GLUT_DUMMY_WORK;
-
- /* Optimization: most of the time, the work to do is a
- redisplay and not these other types of work. Check for
- the following cases as a group to before checking each one
- individually one by one. This saves about 25 MIPS
- instructions in the common redisplay only case. */
- if (workMask & (GLUT_EVENT_MASK_WORK | GLUT_DEVICE_MASK_WORK |
- GLUT_CONFIGURE_WORK | GLUT_COLORMAP_WORK | GLUT_MAP_WORK)) {
-
-#if !defined(_WIN32) && !defined(__OS2__)
- /* Be sure to set event mask BEFORE map window is done. */
- if (workMask & GLUT_EVENT_MASK_WORK) {
- long eventMask;
-
- /* Make sure children are not propogating events this
- window is selecting for. Be sure to do this before
- enabling events on the children's parent. */
- if (window->children) {
- GLUTwindow *child = window->children;
- unsigned long attribMask = CWDontPropagate;
- XSetWindowAttributes wa;
-
- wa.do_not_propagate_mask = window->eventMask & GLUT_DONT_PROPAGATE_FILTER_MASK;
- if (window->eventMask & GLUT_HACK_STOP_PROPAGATE_MASK) {
- wa.event_mask = child->eventMask | (window->eventMask & GLUT_HACK_STOP_PROPAGATE_MASK);
- attribMask |= CWEventMask;
- }
- do {
- XChangeWindowAttributes(__glutDisplay, child->win,
- attribMask, &wa);
- child = child->siblings;
- } while (child);
- }
- eventMask = window->eventMask;
- if (window->parent && window->parent->eventMask & GLUT_HACK_STOP_PROPAGATE_MASK)
- eventMask |= (window->parent->eventMask & GLUT_HACK_STOP_PROPAGATE_MASK);
- XSelectInput(__glutDisplay, window->win, eventMask);
- if (window->overlay)
- XSelectInput(__glutDisplay, window->overlay->win,
- window->eventMask & GLUT_OVERLAY_EVENT_FILTER_MASK);
- }
-#endif /* !_WIN32 */
- /* Be sure to set device mask BEFORE map window is done. */
- if (workMask & GLUT_DEVICE_MASK_WORK) {
- __glutUpdateInputDeviceMaskFunc(window);
- }
- /* Be sure to configure window BEFORE map window is done. */
- if (workMask & GLUT_CONFIGURE_WORK) {
-#if defined(__OS2__)
- RECTL changes;
-
-#elif defined(_WIN32)
- RECT changes;
- POINT point;
- UINT flags = SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOOWNERZORDER
- | SWP_NOSENDCHANGING | SWP_NOSIZE | SWP_NOZORDER;
-
- GetClientRect(window->win, &changes);
-
- /* If this window is a toplevel window, translate the 0,0 client
- coordinate into a screen coordinate for proper placement. */
- if (!window->parent) {
- point.x = 0;
- point.y = 0;
- ClientToScreen(window->win, &point);
- changes.left = point.x;
- changes.top = point.y;
- }
- if (window->desiredConfMask & (CWX | CWY)) {
- changes.left = window->desiredX;
- changes.top = window->desiredY;
- flags &= ~SWP_NOMOVE;
- }
- if (window->desiredConfMask & (CWWidth | CWHeight)) {
- changes.right = changes.left + window->desiredWidth;
- changes.bottom = changes.top + window->desiredHeight;
- flags &= ~SWP_NOSIZE;
- /* XXX If overlay exists, resize the overlay here, ie.
- if (window->overlay) ... */
- }
- if (window->desiredConfMask & CWStackMode) {
- flags &= ~SWP_NOZORDER;
- /* XXX Overlay support might require something special here. */
- }
-
- /* Adjust the window rectangle because Win32 thinks that the x, y,
- width & height are the WHOLE window (including decorations),
- whereas GLUT treats the x, y, width & height as only the CLIENT
- area of the window. Only do this to top level windows
- that are not in game mode (since game mode windows do
- not have any decorations). */
- if (!window->parent && window != __glutGameModeWindow) {
- AdjustWindowRect(&changes,
- WS_OVERLAPPEDWINDOW | WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
- FALSE);
- }
-
- /* Do the repositioning, moving, and push/pop. */
- SetWindowPos(window->win,
- window->desiredStack == Above ? HWND_TOP : HWND_NOTOPMOST,
- changes.left, changes.top,
- changes.right - changes.left, changes.bottom - changes.top,
- flags);
-
- /* Zero out the mask. */
- window->desiredConfMask = 0;
-
- /* This hack causes the window to go back to the right position
- when it is taken out of fullscreen mode. */
- if (workMask & GLUT_FULL_SCREEN_WORK) {
- window->desiredConfMask |= CWX | CWY;
- window->desiredX = point.x;
- window->desiredY = point.y;
- }
-#else /* !_WIN32 */
- XWindowChanges changes;
-
- changes.x = window->desiredX;
- changes.y = window->desiredY;
- if (window->desiredConfMask & (CWWidth | CWHeight)) {
- changes.width = window->desiredWidth;
- changes.height = window->desiredHeight;
- if (window->overlay)
- XResizeWindow(__glutDisplay, window->overlay->win,
- window->desiredWidth, window->desiredHeight);
- if (__glutMotifHints != None) {
- if (workMask & GLUT_FULL_SCREEN_WORK) {
- MotifWmHints hints;
-
- hints.flags = MWM_HINTS_DECORATIONS;
- hints.decorations = 0; /* Absolutely no
- decorations. */
- XChangeProperty(__glutDisplay, window->win,
- __glutMotifHints, __glutMotifHints, 32,
- PropModeReplace, (unsigned char *) &hints, 4);
- if (workMask & GLUT_MAP_WORK) {
- /* Handle case where glutFullScreen is called
- before the first time that the window is
- mapped. Some window managers will randomly or
- interactively position the window the first
- time it is mapped if the window's
- WM_NORMAL_HINTS property does not request an
- explicit position. We don't want any such
- window manager interaction when going
- fullscreen. Overwrite the WM_NORMAL_HINTS
- property installed by glutCreateWindow's
- XSetWMProperties property with one explicitly
- requesting a fullscreen window. */
- XSizeHints hints;
-
- hints.flags = USPosition | USSize;
- hints.x = 0;
- hints.y = 0;
- hints.width = window->desiredWidth;
- hints.height = window->desiredHeight;
- XSetWMNormalHints(__glutDisplay, window->win, &hints);
- }
- } else {
- XDeleteProperty(__glutDisplay, window->win, __glutMotifHints);
- }
- }
- }
- if (window->desiredConfMask & CWStackMode) {
- changes.stack_mode = window->desiredStack;
- /* Do not let glutPushWindow push window beneath the
- underlay. */
- if (window->parent && window->parent->overlay
- && window->desiredStack == Below) {
- changes.stack_mode = Above;
- changes.sibling = window->parent->overlay->win;
- window->desiredConfMask |= CWSibling;
- }
- }
- XConfigureWindow(__glutDisplay, window->win,
- window->desiredConfMask, &changes);
- window->desiredConfMask = 0;
-#endif
- }
-#if !defined(_WIN32) && !defined(__OS2__)
- /* Be sure to establish the colormaps BEFORE map window is
- done. */
- if (workMask & GLUT_COLORMAP_WORK) {
- __glutEstablishColormapsProperty(window);
- }
-#endif
- if (workMask & GLUT_MAP_WORK) {
- switch (window->desiredMapState) {
- case WithdrawnState:
- if (window->parent) {
- XUnmapWindow(__glutDisplay, window->win);
- } else {
- XWithdrawWindow(__glutDisplay, window->win,
- __glutScreen);
- }
- window->shownState = 0;
- break;
- case NormalState:
- XMapWindow(__glutDisplay, window->win);
- window->shownState = 1;
- break;
-#ifdef _WIN32
- case GameModeState: /* Not an Xlib value. */
- ShowWindow(window->win, SW_SHOW);
- window->shownState = 1;
- break;
-#endif
- case IconicState:
- XIconifyWindow(__glutDisplay, window->win, __glutScreen);
- window->shownState = 0;
- break;
- }
- }
- }
- if (workMask & (GLUT_REDISPLAY_WORK | GLUT_OVERLAY_REDISPLAY_WORK | GLUT_REPAIR_WORK | GLUT_OVERLAY_REPAIR_WORK)) {
- if (window->forceReshape) {
- /* Guarantee that before a display callback is generated
- for a window, a reshape callback must be generated. */
- __glutSetWindow(window);
- window->reshape(window->width, window->height);
- window->forceReshape = False;
-
- /* Setting the redisplay bit on the first reshape is
- necessary to make the "Mesa glXSwapBuffers to repair
- damage" hack operate correctly. Without indicating a
- redisplay is necessary, there's not an initial back
- buffer render from which to blit from when damage
- happens to the window. */
- workMask |= GLUT_REDISPLAY_WORK;
- }
- /* The code below is more involved than otherwise necessary
- because it is paranoid about the overlay or entire window
- being removed or destroyed in the course of the callbacks.
- Notice how the global __glutWindowDamaged is used to record
- the layers' damage status. See the code in glutLayerGet for
- how __glutWindowDamaged is used. The point is to not have to
- update the "damaged" field after the callback since the
- window (or overlay) may be destroyed (or removed) when the
- callback returns. */
-
- if (window->overlay && window->overlay->display) {
- int num = window->num;
- Window xid = window->overlay ? window->overlay->win : None;
-
- /* If an overlay display callback is registered, we
- differentiate between a redisplay needed for the
- overlay and/or normal plane. If there is no overlay
- display callback registered, we simply use the
- standard display callback. */
-
- if (workMask & (GLUT_REDISPLAY_WORK | GLUT_REPAIR_WORK)) {
- if (__glutMesaSwapHackSupport) {
- if (window->usedSwapBuffers) {
- if ((workMask & (GLUT_REPAIR_WORK | GLUT_REDISPLAY_WORK)) == GLUT_REPAIR_WORK) {
- SWAP_BUFFERS_WINDOW(window);
- goto skippedDisplayCallback1;
- }
- }
- }
- /* Render to normal plane. */
-#ifdef _WIN32
- window->renderDc = window->hdc;
-#endif
- window->renderWin = window->win;
- window->renderCtx = window->ctx;
- __glutWindowDamaged = (workMask & GLUT_REPAIR_WORK);
- __glutSetWindow(window);
- window->usedSwapBuffers = 0;
- window->display();
- __glutWindowDamaged = 0;
-
- skippedDisplayCallback1:;
- }
- if (workMask & (GLUT_OVERLAY_REDISPLAY_WORK | GLUT_OVERLAY_REPAIR_WORK)) {
- window = __glutWindowList[num];
- if (window && window->overlay &&
- window->overlay->win == xid && window->overlay->display) {
-
- /* Render to overlay. */
-#ifdef _WIN32
- window->renderDc = window->overlay->hdc;
-#endif
- window->renderWin = window->overlay->win;
- window->renderCtx = window->overlay->ctx;
- __glutWindowDamaged = (workMask & GLUT_OVERLAY_REPAIR_WORK);
- __glutSetWindow(window);
- window->overlay->display();
- __glutWindowDamaged = 0;
- } else {
- /* Overlay may have since been destroyed or the
- overlay callback may have been disabled during
- normal display callback. */
- }
- }
- } else {
- if (__glutMesaSwapHackSupport) {
- if (!window->overlay && window->usedSwapBuffers) {
- if ((workMask & (GLUT_REPAIR_WORK | GLUT_REDISPLAY_WORK)) == GLUT_REPAIR_WORK) {
- SWAP_BUFFERS_WINDOW(window);
- goto skippedDisplayCallback2;
- }
- }
- }
- /* Render to normal plane (and possibly overlay). */
- __glutWindowDamaged = (workMask & (GLUT_OVERLAY_REPAIR_WORK | GLUT_REPAIR_WORK));
- __glutSetWindow(window);
- window->usedSwapBuffers = 0;
- window->display();
- __glutWindowDamaged = 0;
-
- skippedDisplayCallback2:;
- }
- }
- /* Combine workMask with window->workMask to determine what
- finish and debug work there is. */
- workMask |= window->workMask;
-
- if (workMask & GLUT_FINISH_WORK) {
- /* Finish work makes sure a glFinish gets done to indirect
- rendering contexts. Indirect contexts tend to have much
- longer latency because lots of OpenGL extension requests
- can queue up in the X protocol stream. __glutSetWindow
- is where the finish works gets queued for indirect
- contexts. */
- __glutSetWindow(window);
- glFinish();
- }
- if (workMask & GLUT_DEBUG_WORK) {
- __glutSetWindow(window);
- glutReportErrors();
- }
- /* Strip out dummy, finish, and debug work bits. */
- window->workMask &= ~(GLUT_DUMMY_WORK | GLUT_FINISH_WORK | GLUT_DEBUG_WORK);
- if (window->workMask) {
- /* Leave on work list. */
- return window;
- } else {
- /* Remove current window from work list. */
- return window->prevWorkWin;
- }
-}
-
-#ifndef _WIN32
-static /* X11 implementations do not need this global. */
-#endif
-void
-__glutProcessWindowWorkLists(void)
-{
- if (__glutWindowWorkList) {
- GLUTwindow *remainder, *work;
-
- work = __glutWindowWorkList;
- __glutWindowWorkList = NULL;
- if (work) {
- remainder = processWindowWorkList(work);
- if (remainder) {
- *beforeEnd = __glutWindowWorkList;
- __glutWindowWorkList = remainder;
- }
- }
- }
-}
-
-/* CENTRY */
-void GLUTAPIENTRY
-glutMainLoop(void)
-{
-#if !defined(_WIN32)
- if (!__glutDisplay)
- __glutFatalUsage("main loop entered with out proper initialization.");
-#endif
- if (!__glutWindowListSize)
- __glutFatalUsage(
- "main loop entered with no windows created.");
- for (;;) {
- __glutProcessWindowWorkLists();
- if (__glutIdleFunc || __glutWindowWorkList) {
- idleWait();
- } else {
- if (__glutTimerList) {
- waitForSomething();
- } else {
- processEventsAndTimeouts();
- }
- }
- }
-}
-/* ENDCENTRY */
|