SDL_x11events.c
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:27k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- Sam Lantinga
- slouken@libsdl.org
- */
- #ifdef SAVE_RCSID
- static char rcsid =
- "@(#) $Id: SDL_x11events.c,v 1.4 2002/04/22 21:38:05 wmay Exp $";
- #endif
- /* Handle the event stream, converting X11 events into SDL events */
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <setjmp.h>
- #include <X11/Xlib.h>
- #include <X11/Xutil.h>
- #include <X11/keysym.h>
- #ifdef __SVR4
- #include <X11/Sunkeysym.h>
- #endif
- #include <sys/types.h>
- #include <sys/time.h>
- #include <unistd.h>
- #include "SDL.h"
- #include "SDL_syswm.h"
- #include "SDL_sysevents.h"
- #include "SDL_sysvideo.h"
- #include "SDL_events_c.h"
- #include "SDL_x11video.h"
- #include "SDL_x11dga_c.h"
- #include "SDL_x11modes_c.h"
- #include "SDL_x11image_c.h"
- #include "SDL_x11gamma_c.h"
- #include "SDL_x11wm_c.h"
- #include "SDL_x11mouse_c.h"
- #include "SDL_x11events_c.h"
- /* Define this if you want to debug X11 events */
- /*#define DEBUG_XEVENTS*/
- /* The translation tables from an X11 keysym to a SDL keysym */
- static SDLKey ODD_keymap[256];
- static SDLKey MISC_keymap[256];
- SDL_keysym *X11_TranslateKey(Display *display, XKeyEvent *xkey, KeyCode kc,
- SDL_keysym *keysym);
- /* Check to see if this is a repeated key.
- (idea shamelessly lifted from GII -- thanks guys! :)
- */
- static int X11_KeyRepeat(Display *display, XEvent *event)
- {
- XEvent peekevent;
- int repeated;
- repeated = 0;
- if ( XPending(display) ) {
- XPeekEvent(display, &peekevent);
- if ( (peekevent.type == KeyPress) &&
- (peekevent.xkey.keycode == event->xkey.keycode) &&
- ((peekevent.xkey.time-event->xkey.time) < 2) ) {
- repeated = 1;
- XNextEvent(display, &peekevent);
- }
- }
- return(repeated);
- }
- /* Note: The X server buffers and accumulates mouse motion events, so
- the motion event generated by the warp may not appear exactly as we
- expect it to. We work around this (and improve performance) by only
- warping the pointer when it reaches the edge, and then wait for it.
- */
- #define MOUSE_FUDGE_FACTOR 8
- static __inline__ int X11_WarpedMotion(_THIS, XEvent *xevent)
- {
- int w, h, i;
- int deltax, deltay;
- int posted;
- w = SDL_VideoSurface->w;
- h = SDL_VideoSurface->h;
- deltax = xevent->xmotion.x - mouse_last.x;
- deltay = xevent->xmotion.y - mouse_last.y;
- #ifdef DEBUG_MOTION
- printf("Warped mouse motion: %d,%dn", deltax, deltay);
- #endif
- mouse_last.x = xevent->xmotion.x;
- mouse_last.y = xevent->xmotion.y;
- posted = SDL_PrivateMouseMotion(0, 1, deltax, deltay);
- if ( (xevent->xmotion.x < MOUSE_FUDGE_FACTOR) ||
- (xevent->xmotion.x > (w-MOUSE_FUDGE_FACTOR)) ||
- (xevent->xmotion.y < MOUSE_FUDGE_FACTOR) ||
- (xevent->xmotion.y > (h-MOUSE_FUDGE_FACTOR)) ) {
- /* Get the events that have accumulated */
- while ( XCheckTypedEvent(SDL_Display, MotionNotify, xevent) ) {
- deltax = xevent->xmotion.x - mouse_last.x;
- deltay = xevent->xmotion.y - mouse_last.y;
- #ifdef DEBUG_MOTION
- printf("Extra mouse motion: %d,%dn", deltax, deltay);
- #endif
- mouse_last.x = xevent->xmotion.x;
- mouse_last.y = xevent->xmotion.y;
- posted += SDL_PrivateMouseMotion(0, 1, deltax, deltay);
- }
- mouse_last.x = w/2;
- mouse_last.y = h/2;
- XWarpPointer(SDL_Display, None, SDL_Window, 0, 0, 0, 0,
- mouse_last.x, mouse_last.y);
- for ( i=0; i<10; ++i ) {
- XMaskEvent(SDL_Display, PointerMotionMask, xevent);
- if ( (xevent->xmotion.x >
- (mouse_last.x-MOUSE_FUDGE_FACTOR)) &&
- (xevent->xmotion.x <
- (mouse_last.x+MOUSE_FUDGE_FACTOR)) &&
- (xevent->xmotion.y >
- (mouse_last.y-MOUSE_FUDGE_FACTOR)) &&
- (xevent->xmotion.y <
- (mouse_last.y+MOUSE_FUDGE_FACTOR)) ) {
- break;
- }
- #ifdef DEBUG_XEVENTS
- printf("Lost mouse motion: %d,%dn", xevent->xmotion.x, xevent->xmotion.y);
- #endif
- }
- #ifdef DEBUG_XEVENTS
- if ( i == 10 ) {
- printf("Warning: didn't detect mouse warp motionn");
- }
- #endif
- }
- return(posted);
- }
- static int X11_DispatchEvent(_THIS)
- {
- int posted;
- XEvent xevent;
- XNextEvent(SDL_Display, &xevent);
- posted = 0;
- switch (xevent.type) {
- /* Gaining mouse coverage? */
- case EnterNotify: {
- #ifdef DEBUG_XEVENTS
- printf("EnterNotify! (%d,%d)n", xevent.xcrossing.x, xevent.xcrossing.y);
- if ( xevent.xcrossing.mode == NotifyGrab )
- printf("Mode: NotifyGrabn");
- if ( xevent.xcrossing.mode == NotifyUngrab )
- printf("Mode: NotifyUngrabn");
- #endif
- if ( (xevent.xcrossing.mode != NotifyGrab) &&
- (xevent.xcrossing.mode != NotifyUngrab) ) {
- if ( this->input_grab == SDL_GRAB_OFF ) {
- posted = SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS);
- } else {
- posted = SDL_PrivateMouseMotion(0, 0,
- xevent.xcrossing.x,
- xevent.xcrossing.y);
- }
- }
- }
- break;
- /* Losing mouse coverage? */
- case LeaveNotify: {
- #ifdef DEBUG_XEVENTS
- printf("LeaveNotify! (%d,%d)n", xevent.xcrossing.x, xevent.xcrossing.y);
- if ( xevent.xcrossing.mode == NotifyGrab )
- printf("Mode: NotifyGrabn");
- if ( xevent.xcrossing.mode == NotifyUngrab )
- printf("Mode: NotifyUngrabn");
- #endif
- if ( (xevent.xcrossing.mode != NotifyGrab) &&
- (xevent.xcrossing.mode != NotifyUngrab) ) {
- if ( this->input_grab == SDL_GRAB_OFF ) {
- posted = SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS);
- } else {
- posted = SDL_PrivateMouseMotion(0, 0,
- xevent.xcrossing.x,
- xevent.xcrossing.y);
- }
- }
- }
- break;
- /* Gaining input focus? */
- case FocusIn: {
- #ifdef DEBUG_XEVENTS
- printf("FocusIn!n");
- #endif
- posted = SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);
- /* Queue entry into fullscreen mode */
- switch_waiting = 0x01 | SDL_FULLSCREEN;
- switch_time = SDL_GetTicks() + 1500;
- }
- break;
- /* Losing input focus? */
- case FocusOut: {
- #ifdef DEBUG_XEVENTS
- printf("FocusOut!n");
- #endif
- posted = SDL_PrivateAppActive(0, SDL_APPINPUTFOCUS);
- /* Queue leaving fullscreen mode */
- switch_waiting = 0x01;
- switch_time = SDL_GetTicks() + 200;
- }
- break;
- /* Generated upon EnterWindow and FocusIn */
- case KeymapNotify: {
- #ifdef DEBUG_XEVENTS
- printf("KeymapNotify!n");
- #endif
- X11_SetKeyboardState(SDL_Display, xevent.xkeymap.key_vector);
- }
- break;
- /* Mouse motion? */
- case MotionNotify: {
- if ( SDL_VideoSurface ) {
- if ( mouse_relative ) {
- if ( using_dga & DGA_MOUSE ) {
- #ifdef DEBUG_MOTION
- printf("DGA motion: %d,%dn", xevent.xmotion.x_root, xevent.xmotion.y_root);
- #endif
- posted = SDL_PrivateMouseMotion(0, 1,
- xevent.xmotion.x_root,
- xevent.xmotion.y_root);
- } else {
- posted = X11_WarpedMotion(this,&xevent);
- }
- } else {
- #ifdef DEBUG_MOTION
- printf("X11 motion: %d,%dn", xevent.xmotion.x, xevent.xmotion.y);
- #endif
- posted = SDL_PrivateMouseMotion(0, 0,
- xevent.xmotion.x,
- xevent.xmotion.y);
- }
- }
- }
- break;
- /* Mouse button press? */
- case ButtonPress: {
- posted = SDL_PrivateMouseButton(SDL_PRESSED,
- xevent.xbutton.button, 0, 0);
- }
- break;
- /* Mouse button release? */
- case ButtonRelease: {
- posted = SDL_PrivateMouseButton(SDL_RELEASED,
- xevent.xbutton.button, 0, 0);
- }
- break;
- /* Key press? */
- case KeyPress: {
- SDL_keysym keysym;
- #ifdef DEBUG_XEVENTS
- printf("KeyPress (X11 keycode = 0x%X)n", xevent.xkey.keycode);
- #endif
- posted = SDL_PrivateKeyboard(SDL_PRESSED,
- X11_TranslateKey(SDL_Display, &xevent.xkey,
- xevent.xkey.keycode,
- &keysym));
- }
- break;
- /* Key release? */
- case KeyRelease: {
- SDL_keysym keysym;
- #ifdef DEBUG_XEVENTS
- printf("KeyRelease (X11 keycode = 0x%X)n", xevent.xkey.keycode);
- #endif
- /* Check to see if this is a repeated key */
- if ( ! X11_KeyRepeat(SDL_Display, &xevent) ) {
- posted = SDL_PrivateKeyboard(SDL_RELEASED,
- X11_TranslateKey(SDL_Display, &xevent.xkey,
- xevent.xkey.keycode,
- &keysym));
- }
- }
- break;
- /* Have we been iconified? */
- case UnmapNotify: {
- #ifdef DEBUG_XEVENTS
- printf("UnmapNotify!n");
- #endif
- /* If we're active, make ourselves inactive */
- if ( SDL_GetAppState() & SDL_APPACTIVE ) {
- /* Swap out the gamma before we go inactive */
- X11_SwapVidModeGamma(this);
- /* Send an internal deactivate event */
- posted = SDL_PrivateAppActive(0,
- SDL_APPACTIVE|SDL_APPINPUTFOCUS);
- }
- }
- break;
- /* Have we been restored? */
- case MapNotify: {
- #ifdef DEBUG_XEVENTS
- printf("MapNotify!n");
- #endif
- /* If we're not active, make ourselves active */
- if ( !(SDL_GetAppState() & SDL_APPACTIVE) ) {
- /* Send an internal activate event */
- posted = SDL_PrivateAppActive(1, SDL_APPACTIVE);
- /* Now that we're active, swap the gamma back */
- X11_SwapVidModeGamma(this);
- }
- if ( SDL_VideoSurface &&
- (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) {
- X11_EnterFullScreen(this);
- } else {
- X11_GrabInputNoLock(this, this->input_grab);
- }
- X11_CheckMouseModeNoLock(this);
- if ( SDL_VideoSurface ) {
- X11_RefreshDisplay(this);
- }
- }
- break;
- /* Have we been resized or moved? */
- case ConfigureNotify: {
- #ifdef DEBUG_XEVENTS
- printf("ConfigureNotify! (resize: %dx%d)n", xevent.xconfigure.width, xevent.xconfigure.height);
- #endif
- if ( SDL_VideoSurface ) {
- if ((xevent.xconfigure.width != SDL_VideoSurface->w) ||
- (xevent.xconfigure.height != SDL_VideoSurface->h)) {
- /* FIXME: Find a better fix for the bug with KDE 1.2 */
- if ( ! ((xevent.xconfigure.width == 32) &&
- (xevent.xconfigure.height == 32)) ) {
- SDL_PrivateResize(xevent.xconfigure.width,
- xevent.xconfigure.height);
- }
- } else {
- /* OpenGL windows need to know about the change */
- if ( SDL_VideoSurface->flags & SDL_OPENGL ) {
- SDL_PrivateExpose();
- }
- }
- }
- }
- break;
- /* Have we been requested to quit (or another client message?) */
- case ClientMessage: {
- if ( (xevent.xclient.format == 32) &&
- (xevent.xclient.data.l[0] == WM_DELETE_WINDOW) )
- {
- posted = SDL_PrivateQuit();
- } else
- if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) {
- SDL_SysWMmsg wmmsg;
- SDL_VERSION(&wmmsg.version);
- wmmsg.subsystem = SDL_SYSWM_X11;
- wmmsg.event.xevent = xevent;
- posted = SDL_PrivateSysWMEvent(&wmmsg);
- }
- }
- break;
- /* Do we need to refresh ourselves? */
- case Expose: {
- #ifdef DEBUG_XEVENTS
- printf("Expose (count = %d)n", xevent.xexpose.count);
- #endif
- if ( SDL_VideoSurface && (xevent.xexpose.count == 0) ) {
- X11_RefreshDisplay(this);
- }
- }
- break;
- default: {
- #ifdef DEBUG_XEVENTS
- printf("Unhandled event %dn", xevent.type);
- #endif
- /* Only post the event if we're watching for it */
- if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) {
- SDL_SysWMmsg wmmsg;
- SDL_VERSION(&wmmsg.version);
- wmmsg.subsystem = SDL_SYSWM_X11;
- wmmsg.event.xevent = xevent;
- posted = SDL_PrivateSysWMEvent(&wmmsg);
- }
- }
- break;
- }
- return(posted);
- }
- /* Ack! XPending() actually performs a blocking read if no events available */
- int X11_Pending(Display *display)
- {
- /* Flush the display connection and look to see if events are queued */
- XFlush(display);
- if ( XEventsQueued(display, QueuedAlready) ) {
- return(1);
- }
- /* More drastic measures are required -- see if X is ready to talk */
- {
- static struct timeval zero_time; /* static == 0 */
- int x11_fd;
- fd_set fdset;
- x11_fd = ConnectionNumber(display);
- FD_ZERO(&fdset);
- FD_SET(x11_fd, &fdset);
- if ( select(x11_fd+1, &fdset, NULL, NULL, &zero_time) == 1 ) {
- return(XPending(display));
- }
- }
- /* Oh well, nothing is ready .. */
- return(0);
- }
- void X11_PumpEvents(_THIS)
- {
- int pending;
- /* Keep processing pending events */
- pending = 0;
- while ( X11_Pending(SDL_Display) ) {
- X11_DispatchEvent(this);
- ++pending;
- }
- if ( switch_waiting ) {
- Uint32 now;
- now = SDL_GetTicks();
- if ( pending || !SDL_VideoSurface ) {
- /* Try again later... */
- if ( switch_waiting & SDL_FULLSCREEN ) {
- switch_time = now + 1500;
- } else {
- switch_time = now + 200;
- }
- } else if ( now >= switch_time ) {
- Uint32 go_fullscreen;
- go_fullscreen = switch_waiting & SDL_FULLSCREEN;
- switch_waiting = 0;
- if ( SDL_VideoSurface->flags & SDL_FULLSCREEN ) {
- if ( go_fullscreen ) {
- X11_EnterFullScreen(this);
- } else {
- X11_LeaveFullScreen(this);
- }
- }
- /* Handle focus in/out when grabbed */
- if ( go_fullscreen ) {
- X11_GrabInputNoLock(this, this->input_grab);
- } else {
- X11_GrabInputNoLock(this, SDL_GRAB_OFF);
- }
- X11_CheckMouseModeNoLock(this);
- }
- }
- }
- void X11_InitKeymap(void)
- {
- int i;
- /* Odd keys used in international keyboards */
- for ( i=0; i<SDL_TABLESIZE(ODD_keymap); ++i )
- ODD_keymap[i] = SDLK_UNKNOWN;
- #ifdef XK_dead_circumflex
- /* These X keysyms have 0xFE as the high byte */
- ODD_keymap[XK_dead_circumflex&0xFF] = SDLK_CARET;
- #endif
- /* Map the miscellaneous keys */
- for ( i=0; i<SDL_TABLESIZE(MISC_keymap); ++i )
- MISC_keymap[i] = SDLK_UNKNOWN;
- /* These X keysyms have 0xFF as the high byte */
- MISC_keymap[XK_BackSpace&0xFF] = SDLK_BACKSPACE;
- MISC_keymap[XK_Tab&0xFF] = SDLK_TAB;
- MISC_keymap[XK_Clear&0xFF] = SDLK_CLEAR;
- MISC_keymap[XK_Return&0xFF] = SDLK_RETURN;
- MISC_keymap[XK_Pause&0xFF] = SDLK_PAUSE;
- MISC_keymap[XK_Escape&0xFF] = SDLK_ESCAPE;
- MISC_keymap[XK_Delete&0xFF] = SDLK_DELETE;
- MISC_keymap[XK_KP_0&0xFF] = SDLK_KP0; /* Keypad 0-9 */
- MISC_keymap[XK_KP_1&0xFF] = SDLK_KP1;
- MISC_keymap[XK_KP_2&0xFF] = SDLK_KP2;
- MISC_keymap[XK_KP_3&0xFF] = SDLK_KP3;
- MISC_keymap[XK_KP_4&0xFF] = SDLK_KP4;
- MISC_keymap[XK_KP_5&0xFF] = SDLK_KP5;
- MISC_keymap[XK_KP_6&0xFF] = SDLK_KP6;
- MISC_keymap[XK_KP_7&0xFF] = SDLK_KP7;
- MISC_keymap[XK_KP_8&0xFF] = SDLK_KP8;
- MISC_keymap[XK_KP_9&0xFF] = SDLK_KP9;
- MISC_keymap[XK_KP_Insert&0xFF] = SDLK_KP0;
- MISC_keymap[XK_KP_End&0xFF] = SDLK_KP1;
- MISC_keymap[XK_KP_Down&0xFF] = SDLK_KP2;
- MISC_keymap[XK_KP_Page_Down&0xFF] = SDLK_KP3;
- MISC_keymap[XK_KP_Left&0xFF] = SDLK_KP4;
- MISC_keymap[XK_KP_Begin&0xFF] = SDLK_KP5;
- MISC_keymap[XK_KP_Right&0xFF] = SDLK_KP6;
- MISC_keymap[XK_KP_Home&0xFF] = SDLK_KP7;
- MISC_keymap[XK_KP_Up&0xFF] = SDLK_KP8;
- MISC_keymap[XK_KP_Page_Up&0xFF] = SDLK_KP9;
- MISC_keymap[XK_KP_Delete&0xFF] = SDLK_KP_PERIOD;
- MISC_keymap[XK_KP_Decimal&0xFF] = SDLK_KP_PERIOD;
- MISC_keymap[XK_KP_Divide&0xFF] = SDLK_KP_DIVIDE;
- MISC_keymap[XK_KP_Multiply&0xFF] = SDLK_KP_MULTIPLY;
- MISC_keymap[XK_KP_Subtract&0xFF] = SDLK_KP_MINUS;
- MISC_keymap[XK_KP_Add&0xFF] = SDLK_KP_PLUS;
- MISC_keymap[XK_KP_Enter&0xFF] = SDLK_KP_ENTER;
- MISC_keymap[XK_KP_Equal&0xFF] = SDLK_KP_EQUALS;
- MISC_keymap[XK_Up&0xFF] = SDLK_UP;
- MISC_keymap[XK_Down&0xFF] = SDLK_DOWN;
- MISC_keymap[XK_Right&0xFF] = SDLK_RIGHT;
- MISC_keymap[XK_Left&0xFF] = SDLK_LEFT;
- MISC_keymap[XK_Insert&0xFF] = SDLK_INSERT;
- MISC_keymap[XK_Home&0xFF] = SDLK_HOME;
- MISC_keymap[XK_End&0xFF] = SDLK_END;
- MISC_keymap[XK_Page_Up&0xFF] = SDLK_PAGEUP;
- MISC_keymap[XK_Page_Down&0xFF] = SDLK_PAGEDOWN;
- MISC_keymap[XK_F1&0xFF] = SDLK_F1;
- MISC_keymap[XK_F2&0xFF] = SDLK_F2;
- MISC_keymap[XK_F3&0xFF] = SDLK_F3;
- MISC_keymap[XK_F4&0xFF] = SDLK_F4;
- MISC_keymap[XK_F5&0xFF] = SDLK_F5;
- MISC_keymap[XK_F6&0xFF] = SDLK_F6;
- MISC_keymap[XK_F7&0xFF] = SDLK_F7;
- MISC_keymap[XK_F8&0xFF] = SDLK_F8;
- MISC_keymap[XK_F9&0xFF] = SDLK_F9;
- MISC_keymap[XK_F10&0xFF] = SDLK_F10;
- MISC_keymap[XK_F11&0xFF] = SDLK_F11;
- MISC_keymap[XK_F12&0xFF] = SDLK_F12;
- MISC_keymap[XK_F13&0xFF] = SDLK_F13;
- MISC_keymap[XK_F14&0xFF] = SDLK_F14;
- MISC_keymap[XK_F15&0xFF] = SDLK_F15;
- MISC_keymap[XK_Num_Lock&0xFF] = SDLK_NUMLOCK;
- MISC_keymap[XK_Caps_Lock&0xFF] = SDLK_CAPSLOCK;
- MISC_keymap[XK_Scroll_Lock&0xFF] = SDLK_SCROLLOCK;
- MISC_keymap[XK_Shift_R&0xFF] = SDLK_RSHIFT;
- MISC_keymap[XK_Shift_L&0xFF] = SDLK_LSHIFT;
- MISC_keymap[XK_Control_R&0xFF] = SDLK_RCTRL;
- MISC_keymap[XK_Control_L&0xFF] = SDLK_LCTRL;
- MISC_keymap[XK_Alt_R&0xFF] = SDLK_RALT;
- MISC_keymap[XK_Alt_L&0xFF] = SDLK_LALT;
- MISC_keymap[XK_Meta_R&0xFF] = SDLK_RMETA;
- MISC_keymap[XK_Meta_L&0xFF] = SDLK_LMETA;
- MISC_keymap[XK_Super_L&0xFF] = SDLK_LSUPER; /* Left "Windows" */
- MISC_keymap[XK_Super_R&0xFF] = SDLK_RSUPER; /* Right "Windows */
- MISC_keymap[XK_Mode_switch&0xFF] = SDLK_MODE; /* "Alt Gr" key */
- MISC_keymap[XK_Multi_key&0xFF] = SDLK_COMPOSE; /* Multi-key compose */
- MISC_keymap[XK_Help&0xFF] = SDLK_HELP;
- MISC_keymap[XK_Print&0xFF] = SDLK_PRINT;
- MISC_keymap[XK_Sys_Req&0xFF] = SDLK_SYSREQ;
- MISC_keymap[XK_Break&0xFF] = SDLK_BREAK;
- MISC_keymap[XK_Menu&0xFF] = SDLK_MENU;
- MISC_keymap[XK_Hyper_R&0xFF] = SDLK_MENU; /* Windows "Menu" key */
- }
- SDL_keysym *X11_TranslateKey(Display *display, XKeyEvent *xkey, KeyCode kc,
- SDL_keysym *keysym)
- {
- KeySym xsym;
- /* Get the raw keyboard scancode */
- keysym->scancode = kc;
- xsym = XKeycodeToKeysym(display, kc, 0);
- #ifdef DEBUG_KEYS
- fprintf(stderr, "Translating key 0x%.4x (%d)n", xsym, kc);
- #endif
- /* Get the translated SDL virtual keysym */
- keysym->sym = SDLK_UNKNOWN;
- if ( xsym ) {
- switch (xsym>>8) {
- case 0x1005FF:
- #ifdef SunXK_F36
- if ( xsym == SunXK_F36 )
- keysym->sym = SDLK_F11;
- #endif
- #ifdef SunXK_F37
- if ( xsym == SunXK_F37 )
- keysym->sym = SDLK_F12;
- #endif
- break;
- case 0x00: /* Latin 1 */
- case 0x01: /* Latin 2 */
- case 0x02: /* Latin 3 */
- case 0x03: /* Latin 4 */
- case 0x04: /* Katakana */
- case 0x05: /* Arabic */
- case 0x06: /* Cyrillic */
- case 0x07: /* Greek */
- case 0x08: /* Technical */
- case 0x0A: /* Publishing */
- case 0x0C: /* Hebrew */
- case 0x0D: /* Thai */
- keysym->sym = (SDLKey)(xsym&0xFF);
- /* Map capital letter syms to lowercase */
- if ((keysym->sym >= 'A')&&(keysym->sym <= 'Z'))
- keysym->sym += ('a'-'A');
- break;
- case 0xFE:
- keysym->sym = ODD_keymap[xsym&0xFF];
- break;
- case 0xFF:
- keysym->sym = MISC_keymap[xsym&0xFF];
- break;
- default:
- fprintf(stderr,
- "X11: Unknown xsym, sym = 0x%04xn",
- (unsigned int)xsym);
- break;
- }
- } else {
- /* X11 doesn't know how to translate the key! */
- switch (kc) {
- /* Caution:
- These keycodes are from the Microsoft Keyboard
- */
- case 115:
- keysym->sym = SDLK_LSUPER;
- break;
- case 116:
- keysym->sym = SDLK_RSUPER;
- break;
- case 117:
- keysym->sym = SDLK_MENU;
- break;
- default:
- /*
- * no point in an error message; happens for
- * several keys when we get a keymap notify
- */
- break;
- }
- }
- keysym->mod = KMOD_NONE;
- /* If UNICODE is on, get the UNICODE value for the key */
- keysym->unicode = 0;
- if ( SDL_TranslateUNICODE && xkey ) {
- static XComposeStatus state;
- /* Until we handle the IM protocol, use XLookupString() */
- unsigned char keybuf[32];
- #define BROKEN_XFREE86_INTERNATIONAL_KBD
- /* This appears to be a magical flag that is used with AltGr on
- international keyboards to signal alternate key translations.
- The flag doesn't show up when in fullscreen mode (?)
- FIXME: Check to see if this code is safe for other servers.
- */
- #ifdef BROKEN_XFREE86_INTERNATIONAL_KBD
- /* Work around what appears to be a bug in XFree86 */
- if ( SDL_GetModState() & KMOD_MODE ) {
- xkey->state |= (1<<13);
- }
- #endif
- /* Look up the translated value for the key event */
- if ( XLookupString(xkey, (char *)keybuf, sizeof(keybuf),
- NULL, &state) ) {
- /*
- * FIXME,: XLookupString() may yield more than one
- * character, so we need a mechanism to allow for
- * this (perhaps generate null keypress events with
- * a unicode value)
- */
- keysym->unicode = keybuf[0];
- }
- }
- return(keysym);
- }
- /* X11 modifier masks for various keys */
- static unsigned meta_l_mask, meta_r_mask, alt_l_mask, alt_r_mask;
- static unsigned num_mask, mode_switch_mask;
- static void get_modifier_masks(Display *display)
- {
- static unsigned got_masks;
- int i, j;
- XModifierKeymap *xmods;
- unsigned n;
- if(got_masks)
- return;
- xmods = XGetModifierMapping(display);
- n = xmods->max_keypermod;
- for(i = 3; i < 8; i++) {
- for(j = 0; j < n; j++) {
- KeyCode kc = xmods->modifiermap[i * n + j];
- KeySym ks = XKeycodeToKeysym(display, kc, 0);
- unsigned mask = 1 << i;
- switch(ks) {
- case XK_Num_Lock:
- num_mask = mask; break;
- case XK_Alt_L:
- alt_l_mask = mask; break;
- case XK_Alt_R:
- alt_r_mask = mask; break;
- case XK_Meta_L:
- meta_l_mask = mask; break;
- case XK_Meta_R:
- meta_r_mask = mask; break;
- case XK_Mode_switch:
- mode_switch_mask = mask; break;
- }
- }
- }
- XFreeModifiermap(xmods);
- got_masks = 1;
- }
- /*
- * This function is semi-official; it is not officially exported and should
- * not be considered part of the SDL API, but may be used by client code
- * that *really* needs it (including legacy code).
- * It is slow, though, and should be avoided if possible.
- *
- * Note that it isn't completely accurate either; in particular, multi-key
- * sequences (dead accents, compose key sequences) will not work since the
- * state has been irrevocably lost.
- */
- Uint16 X11_KeyToUnicode(SDLKey keysym, SDLMod modifiers)
- {
- struct SDL_VideoDevice *this = current_video;
- char keybuf[32];
- int i;
- KeySym xsym = 0;
- XKeyEvent xkey;
- Uint16 unicode;
- if ( !this || !SDL_Display ) {
- return 0;
- }
- memset(&xkey, 0, sizeof(xkey));
- xkey.display = SDL_Display;
- xsym = keysym; /* last resort if not found */
- for (i = 0; i < 256; ++i) {
- if ( MISC_keymap[i] == keysym ) {
- xsym = 0xFF00 | i;
- break;
- } else if ( ODD_keymap[i] == keysym ) {
- xsym = 0xFE00 | i;
- break;
- }
- }
- xkey.keycode = XKeysymToKeycode(xkey.display, xsym);
- get_modifier_masks(SDL_Display);
- if(modifiers & KMOD_SHIFT)
- xkey.state |= ShiftMask;
- if(modifiers & KMOD_CAPS)
- xkey.state |= LockMask;
- if(modifiers & KMOD_CTRL)
- xkey.state |= ControlMask;
- if(modifiers & KMOD_MODE)
- xkey.state |= mode_switch_mask;
- if(modifiers & KMOD_LALT)
- xkey.state |= alt_l_mask;
- if(modifiers & KMOD_RALT)
- xkey.state |= alt_r_mask;
- if(modifiers & KMOD_LMETA)
- xkey.state |= meta_l_mask;
- if(modifiers & KMOD_RMETA)
- xkey.state |= meta_r_mask;
- if(modifiers & KMOD_NUM)
- xkey.state |= num_mask;
- unicode = 0;
- if ( XLookupString(&xkey, keybuf, sizeof(keybuf), NULL, NULL) )
- unicode = (unsigned char)keybuf[0];
- return(unicode);
- }
- /*
- * Called when focus is regained, to read the keyboard state and generate
- * synthetic keypress/release events.
- * key_vec is a bit vector of keycodes (256 bits)
- */
- void X11_SetKeyboardState(Display *display, const char *key_vec)
- {
- char keys_return[32];
- int i, gen_event;
- KeyCode xcode[SDLK_LAST];
- Uint8 new_kstate[SDLK_LAST];
- Uint8 *kstate = SDL_GetKeyState(NULL);
- SDLMod modstate;
- Window junk_window;
- int x, y;
- unsigned int mask;
- /* The first time the window is mapped, we initialize key state */
- if ( ! key_vec ) {
- key_vec = keys_return;
- XQueryKeymap(display, keys_return);
- gen_event = 0;
- } else {
- #if 1 /* We no longer generate key down events, just update state */
- gen_event = 0;
- #else
- gen_event = 1;
- #endif
- }
- /* Get the keyboard modifier state */
- modstate = 0;
- get_modifier_masks(display);
- if ( XQueryPointer(display, DefaultRootWindow(display),
- &junk_window, &junk_window, &x, &y, &x, &y, &mask) ) {
- if ( mask & LockMask ) {
- modstate |= KMOD_CAPS;
- }
- if ( mask & mode_switch_mask ) {
- modstate |= KMOD_MODE;
- }
- if ( mask & num_mask ) {
- modstate |= KMOD_NUM;
- }
- }
- /* Zero the new keyboard state and generate it */
- memset(new_kstate, SDL_RELEASED, sizeof(new_kstate));
- /*
- * An obvious optimisation is to check entire longwords at a time in
- * both loops, but we can't be sure the arrays are aligned so it's not
- * worth the extra complexity
- */
- for(i = 0; i < 32; i++) {
- int j;
- if(!key_vec[i])
- continue;
- for(j = 0; j < 8; j++) {
- if(key_vec[i] & (1 << j)) {
- SDL_keysym sk;
- KeyCode kc = i << 3 | j;
- X11_TranslateKey(display, NULL, kc, &sk);
- new_kstate[sk.sym] = SDL_PRESSED;
- xcode[sk.sym] = kc;
- }
- }
- }
- for(i = SDLK_FIRST+1; i < SDLK_LAST; i++) {
- int state = new_kstate[i];
- if ( state == SDL_PRESSED ) {
- switch (i) {
- case SDLK_LSHIFT:
- modstate |= KMOD_LSHIFT;
- break;
- case SDLK_RSHIFT:
- modstate |= KMOD_RSHIFT;
- break;
- case SDLK_LCTRL:
- modstate |= KMOD_LCTRL;
- break;
- case SDLK_RCTRL:
- modstate |= KMOD_RCTRL;
- break;
- case SDLK_LALT:
- modstate |= KMOD_LALT;
- break;
- case SDLK_RALT:
- modstate |= KMOD_RALT;
- break;
- case SDLK_LMETA:
- modstate |= KMOD_LMETA;
- break;
- case SDLK_RMETA:
- modstate |= KMOD_RMETA;
- break;
- default:
- break;
- }
- }
- if ( kstate[i] == state )
- continue;
- /*
- * Send a fake keyboard event correcting the difference between
- * SDL's keyboard state and the actual. Note that there is no
- * way to find out the scancode for key releases, but since all
- * keys are released when focus is lost only keypresses should
- * be sent here
- */
- if ( gen_event ) {
- SDL_keysym sk;
- memset(&sk, 0, sizeof(sk));
- sk.sym = i;
- sk.scancode = xcode[i]; /* only valid for key press */
- SDL_PrivateKeyboard(state, &sk);
- } else {
- kstate[i] = state;
- }
- }
- /* Hack - set toggle key state */
- if ( modstate & KMOD_CAPS ) {
- kstate[SDLK_CAPSLOCK] = SDL_PRESSED;
- } else {
- kstate[SDLK_CAPSLOCK] = SDL_RELEASED;
- }
- if ( modstate & KMOD_NUM ) {
- kstate[SDLK_NUMLOCK] = SDL_PRESSED;
- } else {
- kstate[SDLK_NUMLOCK] = SDL_RELEASED;
- }
- /* Set the final modifier state */
- SDL_SetModState(modstate);
- }
- void X11_InitOSKeymap(_THIS)
- {
- X11_InitKeymap();
- }