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Date: 10 Jun 2003 15:30:59 -0400 From: Mike Shal Subject: [SDL] Bug in SDL_wave.c? Hey everyone, I'm not sure if this is a bug in SDL, or if I just have incorrect WAV files. The problem I'm having is loading multiple concatenated WAVs from SDL_LoadWAV_RW. Some WAV files put comments at the end of the file (which may be bad form), and SDL doesn't skip past them when reading from the RWops. So the next WAV I try to load will start at the comment section of the previous WAV, which obviously doesn't work. If anyone else is having this problem, one quick fix you can do is run sox on the bad WAVs, which strips out all of the comment sections. Eg: $ sox sound.wav tmp.wav $ mv -f tmp.wav sound.wav The other fix is to patch SDL_wave.c, which is included with this email. (Assuming I made the patch correctly :). All it does is calculate how much remaining space there is in the WAV file after the data chunk, and does SDL_RWseek to skip it. I don't think it should interfere with anything else, but if someone could check it that would be nice :). If the bug is really with SDL and not with my WAVs, can someone work this into the next version of SDL? Thanks, -Mike Shal
author Sam Lantinga <slouken@libsdl.org>
date Tue, 24 Jan 2006 07:20:18 +0000
parents b8d311d90021
children c9b51268668f
line wrap: on
line source

/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2004 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 =
 "@(#) $Id$";
#endif

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 
 * Default cursor - it happens to be the Mac cursor, but could be anything   */

#define DEFAULT_CWIDTH	16
#define DEFAULT_CHEIGHT	16
#define DEFAULT_CHOTX	0
#define DEFAULT_CHOTY	0

/* Added a real MacOS cursor, at the request of Luc-Olivier de Charrière */
#define USE_MACOS_CURSOR

#ifdef USE_MACOS_CURSOR

static unsigned char default_cdata[] =
{
 0x00,0x00,
 0x40,0x00,
 0x60,0x00,
 0x70,0x00,
 0x78,0x00,
 0x7C,0x00,
 0x7E,0x00,
 0x7F,0x00,
 0x7F,0x80,
 0x7C,0x00,
 0x6C,0x00,
 0x46,0x00,
 0x06,0x00,
 0x03,0x00,
 0x03,0x00,
 0x00,0x00
};
static unsigned char default_cmask[] =
{
 0xC0,0x00,
 0xE0,0x00,
 0xF0,0x00,
 0xF8,0x00,
 0xFC,0x00,
 0xFE,0x00,
 0xFF,0x00,
 0xFF,0x80,
 0xFF,0xC0,
 0xFF,0xE0,
 0xFE,0x00,
 0xEF,0x00,
 0xCF,0x00,
 0x87,0x80,
 0x07,0x80,
 0x03,0x00
};

#else

static unsigned char default_cdata[] =
{
 0x00,0x00,
 0x40,0x00,
 0x60,0x00,
 0x70,0x00,
 0x78,0x00,
 0x7C,0x00,
 0x7E,0x00,
 0x7F,0x00,
 0x7F,0x80,
 0x7C,0x00,
 0x6C,0x00,
 0x46,0x00,
 0x06,0x00,
 0x03,0x00,
 0x03,0x00,
 0x00,0x00
};
static unsigned char default_cmask[] =
{
 0x40,0x00,
 0xE0,0x00,
 0xF0,0x00,
 0xF8,0x00,
 0xFC,0x00,
 0xFE,0x00,
 0xFF,0x00,
 0xFF,0x80,
 0xFF,0xC0,
 0xFF,0x80,
 0xFE,0x00,
 0xEF,0x00,
 0x4F,0x00,
 0x07,0x80,
 0x07,0x80,
 0x03,0x00
};

#endif /* TRUE_MACINTOSH_CURSOR */