| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997-2012 Sam Lantinga |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with this library; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| |
| Sam Lantinga |
| slouken@libsdl.org |
| */ |
| #include "SDL_config.h" |
| |
| #include <X11/Xlib.h> |
| #include <X11/Xutil.h> |
| |
| #include "SDL_version.h" |
| #include "SDL_timer.h" |
| #include "SDL_video.h" |
| #include "SDL_syswm.h" |
| #include "../SDL_pixels_c.h" |
| #include "../../events/SDL_events_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; |
| SDL_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 = SDL_malloc(256 * sizeof *SDL_iconcolors); |
| SDL_memset(SDL_iconcolors, 0, 256 * sizeof *SDL_iconcolors); |
| |
| /* try to allocate the colours */ |
| SDL_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 = SDL_malloc(masksize); |
| if ( LSBmask == NULL ) { |
| goto done; |
| } |
| SDL_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); |
| SDL_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 = SDL_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 | InputHint); |
| wmhints->icon_pixmap = icon_pixmap; |
| wmhints->icon_mask = mask_pixmap; |
| wmhints->input = True; |
| 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_SetCaptionNoLock(_THIS, const char *title, const char *icon) |
| { |
| XTextProperty titleprop, iconprop; |
| Status status; |
| |
| #ifdef X_HAVE_UTF8_STRING |
| Atom _NET_WM_NAME = 0; |
| Atom _NET_WM_ICON_NAME = 0; |
| |
| /* Look up some useful Atoms */ |
| if (SDL_X11_HAVE_UTF8) { |
| _NET_WM_NAME = XInternAtom(SDL_Display, "_NET_WM_NAME", False); |
| _NET_WM_ICON_NAME = XInternAtom(SDL_Display, "_NET_WM_ICON_NAME", False); |
| } |
| #endif |
| |
| if ( title != NULL ) { |
| char *title_locale = SDL_iconv_utf8_locale(title); |
| if ( !title_locale ) { |
| SDL_OutOfMemory(); |
| return; |
| } |
| status = XStringListToTextProperty(&title_locale, 1, &titleprop); |
| SDL_free(title_locale); |
| if ( status ) { |
| XSetTextProperty(SDL_Display, WMwindow, &titleprop, XA_WM_NAME); |
| XFree(titleprop.value); |
| } |
| #ifdef X_HAVE_UTF8_STRING |
| if (SDL_X11_HAVE_UTF8) { |
| status = Xutf8TextListToTextProperty(SDL_Display, |
| (char **)&title, 1, XUTF8StringStyle, &titleprop); |
| if ( status == Success ) { |
| XSetTextProperty(SDL_Display, WMwindow, &titleprop, _NET_WM_NAME); |
| XFree(titleprop.value); |
| } |
| } |
| #endif |
| } |
| if ( icon != NULL ) { |
| char *icon_locale = SDL_iconv_utf8_locale(icon); |
| if ( !icon_locale ) { |
| SDL_OutOfMemory(); |
| return; |
| } |
| status = XStringListToTextProperty(&icon_locale, 1, &iconprop); |
| SDL_free(icon_locale); |
| if ( status ) { |
| XSetTextProperty(SDL_Display, WMwindow, &iconprop, XA_WM_ICON_NAME); |
| XFree(iconprop.value); |
| } |
| #ifdef X_HAVE_UTF8_STRING |
| if (SDL_X11_HAVE_UTF8) { |
| status = Xutf8TextListToTextProperty(SDL_Display, |
| (char **)&icon, 1, XUTF8StringStyle, &iconprop); |
| if ( status == Success ) { |
| XSetTextProperty(SDL_Display, WMwindow, &iconprop, _NET_WM_ICON_NAME); |
| XFree(iconprop.value); |
| } |
| } |
| #endif |
| } |
| XSync(SDL_Display, False); |
| } |
| |
| void X11_SetCaption(_THIS, const char *title, const char *icon) |
| { |
| SDL_Lock_EventThread(); |
| X11_SetCaptionNoLock(this, title, icon); |
| 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); |
| } |
| |
| #if 0 |
| #define D(...) printf(__VA_ARGS__) |
| #define E(...) D(__VA_ARGS__) |
| #else |
| #define D(...) ((void)0) |
| #define E(...) ((void)0) |
| #endif |
| |
| static void set_window_pos_nolock(_THIS, int x, int y) |
| { |
| int xNew, yNew; |
| Window child; |
| int xAdjust = X11_wmXAdjust; |
| int yAdjust = X11_wmYAdjust; |
| |
| /* don't do anything in full-screen mode, because the FSwindow is used |
| * instead of the WMwindow, which will make the adjustment go wild |
| */ |
| if (this->screen->flags & SDL_FULLSCREEN) |
| return; |
| |
| /* this code is tricky because some window managers, but not all, |
| * will translate the final window position by a given offset |
| * corresponding to the frame decoration. |
| * |
| * so we first try to move the window, get the position that the |
| * window manager has set, and if they are different, re-position the |
| * window again with an adjustment. |
| * |
| * this causes a slight flicker since the window 'jumps' very |
| * quickly from one position to the other. |
| */ |
| |
| D("%s: move to [%d,%d] adjusted to [%d,%d]\n", __FUNCTION__, |
| x, y, x+xAdjust, y+yAdjust); |
| XMoveWindow(SDL_Display, WMwindow, x + xAdjust, y + yAdjust); |
| XSync(SDL_Display, True); |
| XTranslateCoordinates( SDL_Display, WMwindow, SDL_Root, 0, 0, &xNew, &yNew, &child ); |
| if (xNew != x || yNew != y) { |
| X11_wmXAdjust = xAdjust = x - xNew; |
| X11_wmYAdjust = yAdjust = y - yNew; |
| D("%s: read pos [%d,%d], recomputing adjust=[%d,%d] moving to [%d,%d]\n", |
| __FUNCTION__, xNew, yNew, xAdjust, yAdjust, x+xAdjust, y+yAdjust); |
| XMoveWindow(SDL_Display, WMwindow, x + xAdjust, y + yAdjust ); |
| } |
| XSync(SDL_Display, False); |
| } |
| |
| /* Set window position */ |
| void X11_SetWindowPos(_THIS, int x, int y) |
| { |
| SDL_Lock_EventThread(); |
| set_window_pos_nolock(this, x, y); |
| SDL_Unlock_EventThread(); |
| } |
| |
| /* Get window position */ |
| void X11_GetWindowPos(_THIS, int *px, int *py) |
| { |
| /* in full-screen mode, you can't move the window */ |
| if (this->screen->flags & SDL_FULLSCREEN) { |
| *px = *py = 0; |
| return; |
| } |
| |
| |
| SDL_Lock_EventThread(); |
| { |
| Window child; |
| |
| XTranslateCoordinates( SDL_Display, WMwindow, SDL_Root, 0, 0, px, py, &child ); |
| } |
| SDL_Unlock_EventThread(); |
| } |
| |
| static int |
| is_window_visible(_THIS, int screen_x, int screen_y, int screen_w, int screen_h ) |
| { |
| XWindowAttributes attr; |
| int x, y; |
| Window child; |
| |
| XGetWindowAttributes( SDL_Display, WMwindow, &attr ); |
| XTranslateCoordinates( SDL_Display, WMwindow, SDL_Root, 0, 0, &x, &y, &child ); |
| |
| return ( x >= screen_x && x + attr.width <= screen_x + screen_w && |
| y >= screen_y && y + attr.height <= screen_y + screen_h ); |
| } |
| |
| int X11_IsWindowVisible(_THIS, int recenter) |
| { |
| int result = 0; |
| XWindowAttributes attr; |
| int screen_w, screen_h; |
| |
| SDL_Lock_EventThread(); |
| XGetWindowAttributes( SDL_Display, SDL_Root, &attr ); |
| screen_w = attr.width; |
| screen_h = attr.height; |
| |
| #if SDL_VIDEO_DRIVER_X11_XINERAMA |
| if (use_xinerama) { |
| SDL_NAME(XineramaScreenInfo) *xinerama; |
| int i, screens; |
| |
| xinerama = SDL_NAME(XineramaQueryScreens)(SDL_Display, &screens); |
| for (i = 0; i < screens; i++) { |
| if ( is_window_visible( this, |
| xinerama[i].x_org, xinerama[i].y_org, |
| xinerama[i].width, xinerama[i].height ) ) |
| { |
| result = 1; |
| break; |
| } |
| } |
| |
| if ( !result && recenter ) { |
| set_window_pos_nolock(this, |
| xinerama[0].x_org + (xinerama[0].width - this->screen->w)/2, |
| xinerama[0].y_org + (xinerama[0].height - this->screen->h)/2 ); |
| } |
| XFree(xinerama); |
| goto Exit; |
| } |
| #endif |
| if ( is_window_visible( this, 0, 0, screen_w, screen_h ) ) { |
| result = 1; |
| } |
| |
| if ( !result && recenter ) { |
| set_window_pos_nolock( this, |
| (screen_w - this->screen->w)/2, |
| (screen_h - this->screen->h)/2 ); |
| } |
| #ifdef SDL_VIDEO_DRIVER_X11_XINERAMA |
| Exit: |
| #endif |
| SDL_Unlock_EventThread(); |
| return result; |
| } |
| |
| SDL_GrabMode X11_GrabInputNoLock(_THIS, SDL_GrabMode mode) |
| { |
| int result; |
| |
| if ( this->screen == NULL || SDL_Display == 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 |
| for ( ; ; ) { |
| #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); |
| /* Since we grabbed the pointer, we have mouse focus, too. */ |
| SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS); |
| } |
| 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); |
| } |
| |
| #define MM_PER_INCH 25.4 |
| |
| int |
| X11_GetMonitorDPI(_THIS, int *px_dpi, int *py_dpi) |
| { |
| Display* display = SDL_Display; |
| int screen = XDefaultScreen(display); |
| int xdpi, ydpi; |
| |
| int width = XDisplayWidth(display, screen); |
| int width_mm = XDisplayWidthMM(display, screen); |
| int height = XDisplayHeight(display, screen); |
| int height_mm = XDisplayHeightMM(display, screen); |
| |
| if (width_mm <= 0 || height_mm <= 0) { |
| return -1; |
| } |
| |
| xdpi = (int)(width * MM_PER_INCH / width_mm + 0.5); |
| ydpi = (int)(height * MM_PER_INCH / height_mm + 0.5); |
| |
| if (xdpi < 20 || xdpi > 400 || ydpi < 20 || ydpi > 400) { |
| return -1; |
| } |
| |
| *px_dpi = xdpi; |
| *py_dpi = ydpi; |
| |
| return 0; |
| } |
| |
| int |
| X11_GetMonitorRect(_THIS, SDL_Rect *rect) |
| { |
| Display* display = SDL_Display; |
| int screen = XDefaultScreen(display); |
| |
| rect->x = 0; |
| rect->y = 0; |
| rect->w = XDisplayWidth(display, screen); |
| rect->h = XDisplayHeight(display, screen); |
| |
| return 0; |
| } |
| |
| /* 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(); |
| } |
| |
| #include <stdio.h> |
| 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; |
| } |
| |
| |
| if ( SDL_VERSIONNUM(info->version.major, |
| info->version.minor, |
| info->version.patch) >= 1212 ) { |
| info->info.x11.gfxdisplay = GFX_Display; |
| } |
| |
| 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.%d\n", |
| SDL_MAJOR_VERSION, SDL_MINOR_VERSION); |
| return(-1); |
| } |
| } |