SDL_x11wm.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:11k
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_x11wm.c,v 1.4 2002/04/22 21:38:06 wmay Exp $";
- #endif
- #include <stdlib.h>
- #include <string.h>
- #include <X11/Xlib.h>
- #include <X11/Xutil.h>
- #include "SDL_version.h"
- #include "SDL_error.h"
- #include "SDL_timer.h"
- #include "SDL_video.h"
- #include "SDL_syswm.h"
- #include "SDL_events_c.h"
- #include "SDL_pixels_c.h"
- #include "SDL_x11modes_c.h"
- #include "SDL_x11wm_c.h"
- static Uint8 reverse_byte(Uint8 x)
- {
- x = (x & 0xaa) >> 1 | (x & 0x55) << 1;
- x = (x & 0xcc) >> 2 | (x & 0x33) << 2;
- x = (x & 0xf0) >> 4 | (x & 0x0f) << 4;
- return x;
- }
- void X11_SetIcon(_THIS, SDL_Surface *icon, Uint8 *mask)
- {
- SDL_Surface *sicon;
- XWMHints *wmhints;
- XImage *icon_image;
- Pixmap icon_pixmap;
- Pixmap mask_pixmap;
- Window icon_window = None;
- GC gc;
- XGCValues GCvalues;
- int i, dbpp;
- SDL_Rect bounds;
- Uint8 *LSBmask;
- Visual *dvis;
- char *p;
- int masksize;
- SDL_Lock_EventThread();
- /* The icon must use the default visual, depth and colormap of the
- screen, so it might need a conversion */
- dvis = DefaultVisual(SDL_Display, SDL_Screen);
- dbpp = DefaultDepth(SDL_Display, SDL_Screen);
- for(i = 0; i < this->hidden->nvisuals; i++) {
- if(this->hidden->visuals[i].visual == dvis) {
- dbpp = this->hidden->visuals[i].bpp;
- break;
- }
- }
- /* The Visual struct is supposed to be opaque but we cheat a little */
- sicon = SDL_CreateRGBSurface(SDL_SWSURFACE, icon->w, icon->h,
- dbpp,
- dvis->red_mask, dvis->green_mask,
- dvis->blue_mask, 0);
- if ( sicon == NULL )
- goto done;
- if(dbpp == 8) {
- /* Default visual is 8bit; we need to allocate colours from
- the default colormap */
- SDL_Color want[256], got[256];
- int nwant;
- Colormap dcmap;
- int missing;
- dcmap = DefaultColormap(SDL_Display, SDL_Screen);
- if(icon->format->palette) {
- /* The icon has a palette as well - we just have to
- find those colours */
- nwant = icon->format->palette->ncolors;
- memcpy(want, icon->format->palette->colors,
- nwant * sizeof want[0]);
- } else {
- /* try the standard 6x6x6 cube for lack of better
- ideas */
- int r, g, b, i;
- for(r = i = 0; r < 256; r += 0x33)
- for(g = 0; g < 256; g += 0x33)
- for(b = 0; b < 256; b += 0x33, i++) {
- want[i].r = r;
- want[i].g = g;
- want[i].b = b;
- }
- nwant = 216;
- }
- if(SDL_iconcolors) {
- /* free already allocated colours first */
- unsigned long freelist[512];
- int nfree = 0;
- for(i = 0; i < 256; i++) {
- while(SDL_iconcolors[i]) {
- freelist[nfree++] = i;
- SDL_iconcolors[i]--;
- }
- }
- XFreeColors(GFX_Display, dcmap, freelist, nfree, 0);
- }
- if(!SDL_iconcolors)
- SDL_iconcolors = malloc(256 * sizeof *SDL_iconcolors);
- memset(SDL_iconcolors, 0, 256 * sizeof *SDL_iconcolors);
- /* try to allocate the colours */
- memset(got, 0, sizeof got);
- missing = 0;
- for(i = 0; i < nwant; i++) {
- XColor c;
- c.red = want[i].r << 8;
- c.green = want[i].g << 8;
- c.blue = want[i].b << 8;
- c.flags = DoRed | DoGreen | DoBlue;
- if(XAllocColor(GFX_Display, dcmap, &c)) {
- /* got the colour */
- SDL_iconcolors[c.pixel]++;
- got[c.pixel] = want[i];
- } else {
- missing = 1;
- }
- }
- if(missing) {
- /* Some colours were apparently missing, so we just
- allocate all the rest as well */
- XColor cols[256];
- for(i = 0; i < 256; i++)
- cols[i].pixel = i;
- XQueryColors(GFX_Display, dcmap, cols, 256);
- for(i = 0; i < 256; i++) {
- got[i].r = cols[i].red >> 8;
- got[i].g = cols[i].green >> 8;
- got[i].b = cols[i].blue >> 8;
- if(!SDL_iconcolors[i]) {
- if(XAllocColor(GFX_Display, dcmap,
- cols + i)) {
- SDL_iconcolors[i] = 1;
- } else {
- /* index not available */
- got[i].r = 0;
- got[i].g = 0;
- got[i].b = 0;
- }
- }
- }
- }
- SDL_SetColors(sicon, got, 0, 256);
- }
- bounds.x = 0;
- bounds.y = 0;
- bounds.w = icon->w;
- bounds.h = icon->h;
- if ( SDL_LowerBlit(icon, &bounds, sicon, &bounds) < 0 )
- goto done;
- /* We need the mask as given, except in LSBfirst format instead of
- MSBfirst. Reverse the bits in each byte. */
- masksize = ((sicon->w + 7) >> 3) * sicon->h;
- LSBmask = malloc(masksize);
- if ( LSBmask == NULL ) {
- goto done;
- }
- memset(LSBmask, 0, masksize);
- for(i = 0; i < masksize; i++)
- LSBmask[i] = reverse_byte(mask[i]);
- mask_pixmap = XCreatePixmapFromBitmapData(SDL_Display, WMwindow,
- (char *)LSBmask,
- sicon->w, sicon->h,
- 1L, 0L, 1);
- /* Transfer the image to an X11 pixmap */
- icon_image = XCreateImage(SDL_Display,
- DefaultVisual(SDL_Display, SDL_Screen),
- DefaultDepth(SDL_Display, SDL_Screen),
- ZPixmap, 0, sicon->pixels,
- sicon->w, sicon->h,
- 32, 0);
- icon_image->byte_order = (SDL_BYTEORDER == SDL_BIG_ENDIAN)
- ? MSBFirst : LSBFirst;
- icon_pixmap = XCreatePixmap(SDL_Display, SDL_Root, sicon->w, sicon->h,
- DefaultDepth(SDL_Display, SDL_Screen));
- gc = XCreateGC(SDL_Display, icon_pixmap, 0, &GCvalues);
- XPutImage(SDL_Display, icon_pixmap, gc, icon_image,
- 0, 0, 0, 0, sicon->w, sicon->h);
- XFreeGC(SDL_Display, gc);
- XDestroyImage(icon_image);
- free(LSBmask);
- sicon->pixels = NULL;
- /* Some buggy window managers (some versions of Enlightenment, it
- seems) need an icon window *and* icon pixmap to work properly, while
- it screws up others. The default is only to use a pixmap. */
- p = getenv("SDL_VIDEO_X11_ICONWIN");
- if(p && *p) {
- icon_window = XCreateSimpleWindow(SDL_Display, SDL_Root,
- 0, 0, sicon->w, sicon->h, 0,
- CopyFromParent,
- CopyFromParent);
- XSetWindowBackgroundPixmap(SDL_Display, icon_window,
- icon_pixmap);
- XClearWindow(SDL_Display, icon_window);
- }
- /* Set the window icon to the icon pixmap (and icon window) */
- wmhints = XAllocWMHints();
- wmhints->flags = (IconPixmapHint | IconMaskHint);
- wmhints->icon_pixmap = icon_pixmap;
- wmhints->icon_mask = mask_pixmap;
- if(icon_window != None) {
- wmhints->flags |= IconWindowHint;
- wmhints->icon_window = icon_window;
- }
- XSetWMHints(SDL_Display, WMwindow, wmhints);
- XFree(wmhints);
- XSync(SDL_Display, False);
- done:
- SDL_Unlock_EventThread();
- SDL_FreeSurface(sicon);
- }
- void X11_SetCaption(_THIS, const char *title, const char *icon)
- {
- XTextProperty titleprop, iconprop;
- /* Lock the event thread, in multi-threading environments */
- SDL_Lock_EventThread();
- if ( title != NULL ) {
- XStringListToTextProperty((char **)&title, 1, &titleprop);
- XSetWMName(SDL_Display, WMwindow, &titleprop);
- XFree(titleprop.value);
- }
- if ( icon != NULL ) {
- XStringListToTextProperty((char **)&icon, 1, &iconprop);
- XSetWMIconName(SDL_Display, WMwindow, &iconprop);
- XFree(iconprop.value);
- }
- XSync(SDL_Display, False);
- SDL_Unlock_EventThread();
- }
- /* Iconify the window */
- int X11_IconifyWindow(_THIS)
- {
- int result;
- SDL_Lock_EventThread();
- result = XIconifyWindow(SDL_Display, WMwindow, SDL_Screen);
- XSync(SDL_Display, False);
- SDL_Unlock_EventThread();
- return(result);
- }
- SDL_GrabMode X11_GrabInputNoLock(_THIS, SDL_GrabMode mode)
- {
- int result;
- if ( this->screen == NULL ) {
- return(SDL_GRAB_OFF);
- }
- if ( ! SDL_Window ) {
- return(mode); /* Will be set later on mode switch */
- }
- if ( mode == SDL_GRAB_OFF ) {
- XUngrabPointer(SDL_Display, CurrentTime);
- XUngrabKeyboard(SDL_Display, CurrentTime);
- } else {
- if ( this->screen->flags & SDL_FULLSCREEN ) {
- /* Unbind the mouse from the fullscreen window */
- XUngrabPointer(SDL_Display, CurrentTime);
- }
- /* Try to grab the mouse */
- #if 0 /* We'll wait here until we actually grab, otherwise behavior undefined */
- for ( numtries = 0; numtries < 10; ++numtries ) {
- #else
- while ( 1 ) {
- #endif
- result = XGrabPointer(SDL_Display, SDL_Window, True, 0,
- GrabModeAsync, GrabModeAsync,
- SDL_Window, None, CurrentTime);
- if ( result == GrabSuccess ) {
- break;
- }
- SDL_Delay(100);
- }
- if ( result != GrabSuccess ) {
- /* Uh, oh, what do we do here? */ ;
- }
- /* Now grab the keyboard */
- XGrabKeyboard(SDL_Display, WMwindow, True,
- GrabModeAsync, GrabModeAsync, CurrentTime);
- /* Raise the window if we grab the mouse */
- if ( !(this->screen->flags & SDL_FULLSCREEN) )
- XRaiseWindow(SDL_Display, WMwindow);
- /* Make sure we register input focus */
- SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);
- }
- XSync(SDL_Display, False);
- return(mode);
- }
- SDL_GrabMode X11_GrabInput(_THIS, SDL_GrabMode mode)
- {
- SDL_Lock_EventThread();
- mode = X11_GrabInputNoLock(this, mode);
- SDL_Unlock_EventThread();
- return(mode);
- }
- /* If 'info' is the right version, this function fills it and returns 1.
- Otherwise, in case of a version mismatch, it returns -1.
- */
- static void lock_display(void)
- {
- SDL_Lock_EventThread();
- }
- static void unlock_display(void)
- {
- /* Make sure any X11 transactions are completed */
- SDL_VideoDevice *this = current_video;
- XSync(SDL_Display, False);
- SDL_Unlock_EventThread();
- }
- int X11_GetWMInfo(_THIS, SDL_SysWMinfo *info)
- {
- if ( info->version.major <= SDL_MAJOR_VERSION ) {
- info->subsystem = SDL_SYSWM_X11;
- info->info.x11.display = SDL_Display;
- info->info.x11.window = SDL_Window;
- if ( SDL_VERSIONNUM(info->version.major,
- info->version.minor,
- info->version.patch) >= 1002 ) {
- info->info.x11.fswindow = FSwindow;
- info->info.x11.wmwindow = WMwindow;
- }
- info->info.x11.lock_func = lock_display;
- info->info.x11.unlock_func = unlock_display;
- return(1);
- } else {
- SDL_SetError("Application not compiled with SDL %d.%dn",
- SDL_MAJOR_VERSION, SDL_MINOR_VERSION);
- return(-1);
- }
- }