Update of /cvsroot/alsa/alsa-oss/oss-redir
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv23254/oss-redir
Added Files:
.cvsignore Makefile.am oss-redir.c oss-redir.h
Log Message:
- moved aoss code to alsa directory
- created oss-redir directory with OSS redirection library
(not finished yet)
--- NEW FILE: .cvsignore ---
Makefile
Makefile.in
.deps
.libs
*.lo
*.la
--- NEW FILE: Makefile.am ---
ossredirincludedir = ${includedir}
ossredirinclude_HEADERS = oss-redir.h
lib_LTLIBRARIES = libossredir.la
libossredir_la_SOURCES = oss-redir.c
libossredir_la_LIBADD = -ldl
libossredir_la_LDFLAGS = -static
--- NEW FILE: oss-redir.c ---
/*
* OSS Redirector
* Copyright (c) by Jaroslav Kysela <[EMAIL PROTECTED]>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#define _GNU_SOURCE
#include "oss-redir.h"
#include <sys/poll.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <dlfcn.h>
#include <errno.h>
#include <linux/soundcard.h>
static int initialized = 0;
static int native_oss = 1;
static char hal[64];
int (*oss_pcm_open)(const char *pathname, int flags, ...);
int (*oss_pcm_close)(int fd);
ssize_t (*oss_pcm_read)(int fd, void *buf, size_t count);
ssize_t (*oss_pcm_write)(int fd, const void *buf, size_t count);
void * (*oss_pcm_mmap)(void *start, size_t length, int prot, int flags, int fd, off_t
offset);
int (*oss_pcm_munmap)(void *start, size_t length);
int (*oss_pcm_ioctl)(int fd, unsigned long int request, ...);
int (*oss_pcm_select_prepare)(int fd, fd_set *readfds, fd_set *writefds);
int (*oss_pcm_select_result)(int fd, fd_set *readfds, fd_set *writefds);
int (*oss_pcm_poll_fds)(int fd);
int (*oss_pcm_poll_prepare)(int fd, struct pollfd *ufds);
int (*oss_pcm_poll_result)(int fd, struct pollfd *ufds);
int (*oss_mixer_open)(const char *pathname, int flags, ...);
int (*oss_mixer_close)(int fd);
int (*oss_mixer_ioctl)(int fd, unsigned long int request, ...);
int native_pcm_select_prepare(int fd, fd_set *readfds, fd_set *writefds)
{
if (fd < 0)
return -EINVAL;
if (readfds)
FD_SET(fd, readfds);
if (writefds)
FD_SET(fd, writefds);
return 0;
}
int native_pcm_select_result(int fd, fd_set *readfds, fd_set *writefds)
{
int result = 0;
if (fd < 0)
return -EINVAL;
if (readfds && FD_ISSET(fd, readfds))
result |= OSS_WAIT_EVENT_READ;
if (writefds && FD_ISSET(fd, writefds))
result |= OSS_WAIT_EVENT_WRITE;
return result;
}
int native_pcm_poll_fds(int fd)
{
if (fd < 0)
return -EINVAL;
return 1;
}
int native_pcm_poll_prepare(int fd, struct pollfd *ufds)
{
if (fd < 0)
return -EINVAL;
ufds->fd = fd;
ufds->events = POLLIN | POLLOUT | POLLERR;
return 0;
}
int native_pcm_poll_result(int fd, struct pollfd *ufds)
{
int result = 0;
if (fd < 0)
return -EINVAL;
if (ufds->events & POLLIN)
result |= OSS_WAIT_EVENT_READ;
if (ufds->events & POLLOUT)
result |= OSS_WAIT_EVENT_WRITE;
return result;
}
static void initialize()
{
char *s = getenv("OSS_REDIRECTOR");
if (s) {
strncpy(hal, s, sizeof(hal));
hal[sizeof(hal)-1] = '\0';
if (!strcmp(hal, "oss"))
native_oss = 1;
} else {
native_oss = 1;
}
if (native_oss) {
oss_pcm_open = open;
oss_pcm_close = close;
oss_pcm_read = read;
oss_pcm_write = write;
oss_pcm_mmap = mmap;
oss_pcm_munmap = munmap;
oss_pcm_ioctl = ioctl;
oss_pcm_select_prepare = native_pcm_select_prepare;
oss_pcm_select_result = native_pcm_select_result;
oss_pcm_poll_fds = native_pcm_poll_fds;
oss_pcm_poll_prepare = native_pcm_poll_prepare;
oss_pcm_poll_result = native_pcm_poll_result;
oss_mixer_open = open;
oss_mixer_close = close;
oss_mixer_ioctl = ioctl;
}
}
static inline void check_initialized(void)
{
if (!initialized)
initialize();
}
--- NEW FILE: oss-redir.h ---
#ifndef __OSS_REDIR_H
/*
* OSS Redirector
* Copyright (c) by Jaroslav Kysela <[EMAIL PROTECTED]>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <sys/select.h>
#include <sys/types.h>
struct pollfd;
#define OSS_WAIT_EVENT_READ (1<<0)
#define OSS_WAIT_EVENT_WRITE (1<<1)
extern int (*oss_pcm_open)(const char *pathname, int flags, ...);
extern int (*oss_pcm_close)(int fd);
extern ssize_t (*oss_pcm_read)(int fd, void *buf, size_t count);
extern ssize_t (*oss_pcm_write)(int fd, const void *buf, size_t count);
extern void * (*oss_pcm_mmap)(void *start, size_t length, int prot, int flags, int fd,
off_t offset);
extern int (*oss_pcm_munmap)(void *start, size_t length);
extern int (*oss_pcm_ioctl)(int fd, unsigned long int request, ...);
extern int (*oss_pcm_select_prepare)(int fd, fd_set *readfds, fd_set *writefds);
extern int (*oss_pcm_select_result)(int fd, fd_set *readfds, fd_set *writefds);
extern int (*oss_pcm_poll_fds)(int fd);
extern int (*oss_pcm_poll_prepare)(int fd, struct pollfd *ufds);
extern int (*oss_pcm_poll_result)(int fd, struct pollfd *ufds);
extern int (*oss_mixer_open)(const char *pathname, int flags, ...);
extern int (*oss_mixer_close)(int fd);
extern int (*oss_mixer_ioctl)(int fd, unsigned long int request, ...);
#endif /* __OSS_REDIR_H */
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