109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
/*
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Copyright (C) 1996-2001 Id Software, Inc.
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Copyright (C) 2002-2005 John Fitzgibbons and others
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Copyright (C) 2007-2008 Kristian Duske
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "quakedef.h"
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#if defined(SDL_FRAMEWORK) || defined(NO_SDL_CONFIG)
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#include <SDL/SDL.h>
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#else
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#include "SDL.h"
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#endif
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static const Uint8 bmp_bytes[] =
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{
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#include "qs_bmp.h"
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};
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static Uint8 *PL_CreateIconMask(SDL_Surface *icon)
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{
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int x, y;
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int i;
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Uint8 *topleft_pixel, *current_pixel;
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Uint8 *mask;
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/* Note that this sets all pixels to invisible in the mask. */
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mask = (Uint8 *) calloc(((icon->w + 7) / 8) * icon->h, sizeof(Uint8));
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if (!mask)
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return NULL;
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if (SDL_MUSTLOCK(icon))
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SDL_LockSurface(icon);
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/* The top-left pixel and identical pixels will remain invisible. */
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topleft_pixel = (Uint8 *)icon->pixels;
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for (x = 0; x < icon->w; x++)
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{
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for (y = 0; y < icon->h; y++)
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{
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current_pixel = (Uint8 *)icon->pixels +
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y * icon->pitch +
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x * icon->format->BytesPerPixel;
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for (i = 0; i < icon->format->BytesPerPixel; i++)
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{
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/* If the current pixel is not identical to
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* the top-left pixel, set it to visible in
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* the mask. */
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if (current_pixel[i] != topleft_pixel[i])
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{
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mask[y * ((icon->w + 7) / 8) + x / 8] |= 128 >> x % 8;
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break;
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}
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}
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}
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}
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if (SDL_MUSTLOCK(icon))
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SDL_UnlockSurface(icon);
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return mask;
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}
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void PL_SetWindowIcon (void)
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{
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SDL_RWops *rwop;
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SDL_Surface *icon;
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Uint8 *mask;
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/* SDL_RWFromConstMem() requires SDL >= 1.2.7 */
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rwop = SDL_RWFromConstMem(bmp_bytes, sizeof(bmp_bytes));
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if (rwop == NULL)
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return;
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icon = SDL_LoadBMP_RW(rwop, 1);
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if (icon == NULL)
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return;
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mask = PL_CreateIconMask(icon);
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if (mask != NULL)
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{
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SDL_WM_SetIcon(icon, mask);
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free(mask);
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}
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SDL_FreeSurface(icon);
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}
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void PL_VID_Shutdown (void)
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{
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}
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void PL_ErrorDialog (const char *errorMsg)
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{
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}
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