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view src/audio/paudio/SDL_paudio.h @ 852:2651b6b43840

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Quartz fix: ut2004 makes a 2D window for the splash screen, which sets the screen surface's pixels field. Then we tear down that video mode and create a GL context, and the Quartz target isn't resetting the pixels field to NULL. When you just create a GL window, the structure is memset'd to zero the first time through, so unless you hit ut2004's codepath, you won't see the bug. :) Without this patch, quitting a windowed ut2003/ut2004 game makes the OS dump a warning about a bogus free() to stderr, but it doesn't actually crash. All we need to do is explicitly initialize the current->pixels field.
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 24 Feb 2004 06:53:22 +0000
parents b8d311d90021
children c9b51268668f
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/*
    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

#ifndef _SDL_paudaudio_h
#define _SDL_paudaudio_h

#include "SDL_sysaudio.h"

/* Hidden "this" pointer for the video functions */
#define _THIS	SDL_AudioDevice *this

struct SDL_PrivateAudioData {
	/* The file descriptor for the audio device */
	int audio_fd;

	/* The parent process id, to detect when application quits */
	pid_t parent;

	/* Raw mixing buffer */
	Uint8 *mixbuf;
	int    mixlen;

	/* Support for audio timing using a timer, in addition to select() */
	float frame_ticks;
	float next_frame;
};
#define FUDGE_TICKS	10	/* The scheduler overhead ticks per frame */

/* Old variable names */
#define audio_fd		(this->hidden->audio_fd)
#define parent			(this->hidden->parent)
#define mixbuf			(this->hidden->mixbuf)
#define mixlen			(this->hidden->mixlen)
#define frame_ticks		(this->hidden->frame_ticks)
#define next_frame		(this->hidden->next_frame)

#endif /* _SDL_paudaudio_h */