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AmigaSDLsrc.lha
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SDL_cgxwm.c
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2000-08-17
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000 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: SDL_x11wm.c,v 1.2.2.10 2000/05/05 17:07:55 hercules Exp $";
#endif
#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_cgxmodes_c.h"
#include "SDL_cgxwm_c.h"
/* This is necessary for working properly with Enlightenment, etc. */
#define USE_ICON_WINDOW
void CGX_SetIcon(_THIS, SDL_Surface *icon, Uint8 *mask)
{
#if 0
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,
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);
}
#endif
return;
}
void CGX_SetCaption(_THIS, const char *title, const char *icon)
{
if(SDL_Window)
SetWindowTitles(SDL_Window,(char *)title,NULL);
}
/* Iconify the window */
int CGX_IconifyWindow(_THIS)
{
#if 0
int result;
SDL_Lock_EventThread();
result = XIconifyWindow(SDL_Display, WMwindow, SDL_Screen);
XSync(SDL_Display, False);
SDL_Unlock_EventThread();
return(result);
#else
return 0;
#endif
}
#if 0
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 ) {
XUngrabPointer(SDL_Display, CurrentTime);
if ( this->screen->flags & SDL_FULLSCREEN ) {
/* Rebind the mouse to the fullscreen window */
for ( numtries = 0; numtries < 10; ++numtries ) {
result = XGrabPointer(SDL_Display, FSwindow,
True, 0,
GrabModeAsync, GrabModeAsync,
FSwindow, None, CurrentTime);
if ( result == AlreadyGrabbed ) {
break;
}
SDL_Delay(100);
}
}
#ifdef GRAB_FULLSCREEN
if ( !(this->screen->flags & SDL_FULLSCREEN) )
#endif
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 */
for ( numtries = 0; numtries < 10; ++numtries ) {
result = XGrabPointer(SDL_Display, SDL_Window, True, 0,
GrabModeAsync, GrabModeAsync,
SDL_Window, None, CurrentTime);
if ( result != AlreadyGrabbed ) {
break;
}
SDL_Delay(100);
}
#ifdef GRAB_FULLSCREEN
if ( !(this->screen->flags & SDL_FULLSCREEN) )
#endif
XGrabKeyboard(SDL_Display, WMwindow, True,
GrabModeAsync, GrabModeAsync, CurrentTime);
}
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();
}
#endif
int CGX_GetWMInfo(_THIS, SDL_SysWMinfo *info)
{
if ( info->version.major <= SDL_MAJOR_VERSION ) {
#if 0
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;
#endif
return(1);
} else {
SDL_SetError("Application not compiled with SDL %d.%d\n",
SDL_MAJOR_VERSION, SDL_MINOR_VERSION);
return(-1);
}
}