/*

SDL - Simple DirectMedia Layer

Copyright (C) 1997, 1998, 1999, 2000, 2001 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@devolution.com

*/

#ifdef SAVE_RCSID

static char rcsid =

"@(#) $Id$";

#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"

/* This is necessary for working properly with Enlightenment, etc. */

#define USE_ICON_WINDOW

void X11_SetIcon(_THIS, SDL_Surface *icon, Uint8 *mask)

{

SDL_Surface *sicon;

XWMHints *wmhints;

XImage *icon_image;

Pixmap icon_pixmap;

Pixmap mask_pixmap;

#ifdef USE_ICON_WINDOW

Window icon_window;

#endif

GC GC;

XGCValues GCvalues;

int i, b, dbpp;

SDL_Rect bounds;

Uint8 *LSBmask, *color_tried;

Visual *dvis;

/* Lock the event thread, in multi-threading environments */

SDL_Lock_EventThread();

/* The icon must use the default visual, depth and colormap of the

screen, so it might need a conversion */

dbpp = DefaultDepth(SDL_Display, SDL_Screen);

switch(dbpp) {

case 15:

dbpp = 16; break;

case 24:

dbpp = 32; break;

}

dvis = DefaultVisual(SDL_Display, SDL_Screen);

/* 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 we already have allocated colours from the default colormap,

copy them */

if(SDL_Visual == dvis && SDL_XColorMap == SDL_DisplayColormap

&& this->screen->format->palette && sicon->format->palette) {

memcpy(sicon->format->palette->colors,

this->screen->format->palette->colors,

this->screen->format->palette->ncolors * sizeof(SDL_Color));

}

bounds.x = 0;

bounds.y = 0;

bounds.w = icon->w;

bounds.h = icon->h;

if ( SDL_LowerBlit(icon, &bounds, sicon, &bounds) < 0 )

goto done;

/* Lock down the colors used in the colormap */

color_tried = NULL;

if ( sicon->format->BitsPerPixel == 8 ) {

SDL_Palette *palette;

Uint8 *p;

XColor wanted;

palette = sicon->format->palette;

color_tried = malloc(palette->ncolors);

if ( color_tried == NULL ) {

goto done;

}

if ( SDL_iconcolors != NULL ) {

free(SDL_iconcolors);

}

SDL_iconcolors = malloc(palette->ncolors

* sizeof(*SDL_iconcolors));

if ( SDL_iconcolors == NULL ) {

free(color_tried);

goto done;

}

memset(color_tried, 0, palette->ncolors);

memset(SDL_iconcolors, 0,

palette->ncolors * sizeof(*SDL_iconcolors));

p = (Uint8 *)sicon->pixels;

for ( i = sicon->w*sicon->h; i > 0; --i, ++p ) {

if ( ! color_tried[*p] ) {

wanted.pixel = *p;

wanted.red = (palette->colors[*p].r<<8);

wanted.green = (palette->colors[*p].g<<8);

wanted.blue = (palette->colors[*p].b<<8);

wanted.flags = (DoRed|DoGreen|DoBlue);

if (XAllocColor(SDL_Display,

SDL_DisplayColormap, &wanted)) {

++SDL_iconcolors[wanted.pixel];

}

color_tried[*p] = 1;

}

}

}

if ( color_tried != NULL ) {

free(color_tried);

}

/* Translate mask data to LSB order and set the icon mask */

i = (sicon->w/8)*sicon->h;

LSBmask = (Uint8 *)malloc(i);

if ( LSBmask == NULL ) {

goto done;

}

memset(LSBmask, 0, i);

while ( --i >= 0 ) {

for ( b=0; b<8; ++b )

LSBmask[i] |= (((mask[i]>>b)&0x01)<<(7-b));

}

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, (char *)sicon->pixels, sicon->w, sicon->h,

((sicon->format)->BytesPerPixel == 3) ? 32 :

(sicon->format)->BytesPerPixel*8, 0);

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;

#ifdef USE_ICON_WINDOW

/* Create an icon window and set the pixmap as its background */

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);

#endif

/* 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;

#ifdef USE_ICON_WINDOW

wmhints->flags |= IconWindowHint;

wmhints->icon_window = icon_window;

#endif

XSetWMHints(SDL_Display, WMwindow, wmhints);

XFree(wmhints);

XSync(SDL_Display, False);

done:

SDL_Unlock_EventThread();

if ( sicon != NULL ) {

SDL_FreeSurface(sicon);

}

return;

}

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 numtries, 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 ) {

printf("SDL grab OFF\n");

XUngrabPointer(SDL_Display, CurrentTime);

XUngrabKeyboard(SDL_Display, CurrentTime);

} else {

printf("SDL grab ON\n");

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.%d\n",

SDL_MAJOR_VERSION, SDL_MINOR_VERSION);

return(-1);

}

}