view src/thread/pth/SDL_sysmutex.c @ 1138:fcfb783a3ca2

Commercial-OSS-on-Solaris patch... --ryan. Date: Sun, 14 Aug 2005 23:06:40 -0500 From: Shawn Walker <binarycrusader@gmail.com> To: sdl@libsdl.org Subject: [SDL] [PATCH] Audio Detection Bug When using the OSS commercial drivers under Solaris 10, SDL will not properly initialise OSS audio support (dsp) if /dev/sound exists. Under Solaris (as far as I understand) /dev/sound is provided as a means of accessing a BSD style audio device, not the OSS device. SDL assumes that if /dev/sound exists, then it must be running on a Linux 2.4 system and should make the dsp device path /dev/sound/dsp. This is wrong. When using the OSS commercial drivers under Solaris, the dsp device is always referenced as /dev/dsp normally. My proposed fix is to stat the dsp device in /dev/sound to make sure it exists, before assuming /dev/sound/dsp as the audio device: http://icculus.org/~eviltypeguy/SDL_audiodev.patch I'm sure there may be a better way to do it, but the above patch is what worked for me. --=20 Shawn Walker, Software and Systems Analyst binarycrusader@gmail.com - http://binarycrusader.blogspot.com/
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 08 Sep 2005 07:15:44 +0000
parents 1d74ddc90cb2
children 3692456e7b0f
line wrap: on
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/*
 *	GNU pth mutexes
 *
 *	Patrice Mandin
 */

#include <stdio.h>
#include <stdlib.h>
#include <pth.h>

#include "SDL_error.h"
#include "SDL_mutex.h"
#include "SDL_sysmutex_c.h"

/* Create a mutex */
SDL_mutex *SDL_CreateMutex(void)
{
	SDL_mutex *mutex;

	/* Allocate mutex memory */
	mutex = (SDL_mutex *)malloc(sizeof(*mutex));
	if ( mutex ) {
		/* Create the mutex, with initial value signaled */
	    if (!pth_mutex_init(&(mutex->mutexpth_p))) {
			SDL_SetError("Couldn't create mutex");
			free(mutex);
			mutex = NULL;
		}
	} else {
		SDL_OutOfMemory();
	}
	return(mutex);
}

/* Free the mutex */
void SDL_DestroyMutex(SDL_mutex *mutex)
{
	if ( mutex ) {
		free(mutex);
	}
}

/* Lock the mutex */
int SDL_mutexP(SDL_mutex *mutex)
{
	if ( mutex == NULL ) {
		SDL_SetError("Passed a NULL mutex");
		return -1;
	}

	pth_mutex_acquire(&(mutex->mutexpth_p), FALSE, NULL);

	return(0);
}

/* Unlock the mutex */
int SDL_mutexV(SDL_mutex *mutex)
{
	if ( mutex == NULL ) {
		SDL_SetError("Passed a NULL mutex");
		return -1;
	}

    pth_mutex_release(&(mutex->mutexpth_p));

	return(0);
}