c897ffa619
- Now using macro DEV_register_timer() in all devices and lowlevel modules. - Removed unused timer stuff from the plugin.cc/.h code.
388 lines
9.7 KiB
C++
388 lines
9.7 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2001-2017 The Bochs Project
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library 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. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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/////////////////////////////////////////////////////////////////////////
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// Josef Drexler coded the original version of the lowlevel sound support
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// for Linux using OSS. The current version also supports OSS on FreeBSD.
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// Define BX_PLUGGABLE in files that can be compiled into plugins. For
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// platforms that require a special tag on exported symbols, BX_PLUGGABLE
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// is used to know when we are exporting symbols and when we are importing.
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#define BX_PLUGGABLE
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#include "iodev.h"
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#include "soundlow.h"
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#include "soundmod.h"
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#include "soundoss.h"
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#if BX_HAVE_SOUND_OSS && BX_SUPPORT_SOUNDLOW
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#define LOG_THIS
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#include <errno.h>
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#include <sys/ioctl.h>
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#include <sys/soundcard.h>
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// sound driver plugin entry points
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int CDECL liboss_sound_plugin_init(plugin_t *plugin, plugintype_t type)
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{
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// Nothing here yet
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return 0; // Success
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}
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void CDECL liboss_sound_plugin_fini(void)
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{
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// Nothing here yet
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}
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// bx_soundlow_waveout_oss_c class implementation
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bx_soundlow_waveout_oss_c::bx_soundlow_waveout_oss_c()
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:bx_soundlow_waveout_c()
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{
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waveout_fd = -1;
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}
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bx_soundlow_waveout_oss_c::~bx_soundlow_waveout_oss_c()
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{
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if (waveout_fd != -1) {
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close(waveout_fd);
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waveout_fd = -1;
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}
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}
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int bx_soundlow_waveout_oss_c::openwaveoutput(const char *wavedev)
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{
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if (waveout_fd == -1) {
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waveout_fd = open(wavedev, O_WRONLY);
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if (waveout_fd == -1) {
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return BX_SOUNDLOW_ERR;
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} else {
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BX_INFO(("OSS: opened output device %s", wavedev));
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}
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}
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set_pcm_params(&real_pcm_param);
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pcm_callback_id = register_wave_callback(this, pcm_callback);
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start_resampler_thread();
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start_mixer_thread();
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return BX_SOUNDLOW_OK;
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}
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int bx_soundlow_waveout_oss_c::set_pcm_params(bx_pcm_param_t *param)
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{
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int fmt, ret;
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int frequency = param->samplerate;
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int channels = param->channels;
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int signeddata = param->format & 1;
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BX_DEBUG(("set_pcm_params(): %u, %u, %u, %02x", param->samplerate, param->bits,
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param->channels, param->format));
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if (waveout_fd == -1) {
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return BX_SOUNDLOW_ERR;
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}
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if (param->bits == 16) {
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if (signeddata == 1) {
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fmt = AFMT_S16_LE;
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} else {
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fmt = AFMT_U16_LE;
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}
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} else if (param->bits == 8) {
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if (signeddata == 1) {
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fmt = AFMT_S8;
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} else {
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fmt = AFMT_U8;
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}
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} else {
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return BX_SOUNDLOW_ERR;
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}
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// set frequency etc.
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ret = ioctl(waveout_fd, SNDCTL_DSP_RESET);
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if (ret != 0)
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BX_ERROR(("ioctl(SNDCTL_DSP_RESET): %s", strerror(errno)));
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/*
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ret = ioctl(waveout_fd], SNDCTL_DSP_SETFRAGMENT, &fragment);
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if (ret != 0)
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BX_DEBUG(("ioctl(SNDCTL_DSP_SETFRAGMENT, %d): %s",
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fragment, strerror(errno)));
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*/
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ret = ioctl(waveout_fd, SNDCTL_DSP_SETFMT, &fmt);
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if (ret != 0) { // abort if the format is unknown, to avoid playing noise
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BX_ERROR(("ioctl(SNDCTL_DSP_SETFMT, %d): %s",
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fmt, strerror(errno)));
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return BX_SOUNDLOW_ERR;
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}
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ret = ioctl(waveout_fd, SNDCTL_DSP_CHANNELS, &channels);
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if (ret != 0)
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BX_ERROR(("ioctl(SNDCTL_DSP_CHANNELS, %d): %s",
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channels, strerror(errno)));
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ret = ioctl(waveout_fd, SNDCTL_DSP_SPEED, &frequency);
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if (ret != 0)
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BX_ERROR(("ioctl(SNDCTL_DSP_SPEED, %d): %s",
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frequency, strerror(errno)));
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// ioctl(wave_fd[0], SNDCTL_DSP_GETBLKSIZE, &fragment);
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// BX_DEBUG(("current output block size is %d", fragment));
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return BX_SOUNDLOW_OK;
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}
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int bx_soundlow_waveout_oss_c::output(int length, Bit8u data[])
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{
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int odelay, delay;
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if (waveout_fd == -1) {
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return BX_SOUNDLOW_ERR;
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}
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if (write(waveout_fd, data, length) == length) {
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ioctl(waveout_fd, SNDCTL_DSP_GETODELAY, &odelay);
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delay = odelay * 1000 / (real_pcm_param.samplerate * 4);
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BX_MSLEEP(delay);
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return BX_SOUNDLOW_OK;
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} else {
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return BX_SOUNDLOW_ERR;
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}
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}
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// bx_soundlow_wavein_oss_c class implementation
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bx_soundlow_wavein_oss_c::bx_soundlow_wavein_oss_c()
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:bx_soundlow_wavein_c()
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{
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wavein_fd = -1;
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}
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bx_soundlow_wavein_oss_c::~bx_soundlow_wavein_oss_c()
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{
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if (wavein_fd != -1) {
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close(wavein_fd);
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wavein_fd = -1;
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}
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}
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int bx_soundlow_wavein_oss_c::openwaveinput(const char *wavedev, sound_record_handler_t rh)
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{
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record_handler = rh;
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if (rh != NULL) {
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record_timer_index = DEV_register_timer(this, record_timer_handler, 1, 1, 0, "soundlnx");
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// record timer: inactive, continuous, frequency variable
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}
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if (wavein_fd == -1) {
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wavein_fd = open(wavedev, O_RDONLY);
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if (wavein_fd == -1) {
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return BX_SOUNDLOW_ERR;
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} else {
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BX_INFO(("OSS: opened input device %s", wavedev));
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}
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}
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wavein_param.samplerate = 0;
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return BX_SOUNDLOW_OK;
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}
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int bx_soundlow_wavein_oss_c::startwaverecord(bx_pcm_param_t *param)
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{
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Bit64u timer_val;
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Bit8u shift = 0;
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int fmt, ret;
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int frequency = param->samplerate;
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int channels = param->channels;
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int signeddata = param->format & 1;
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if (record_timer_index != BX_NULL_TIMER_HANDLE) {
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if (param->bits == 16) shift++;
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if (param->channels == 2) shift++;
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record_packet_size = (param->samplerate / 10) << shift; // 0.1 sec
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if (record_packet_size > BX_SOUNDLOW_WAVEPACKETSIZE) {
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record_packet_size = BX_SOUNDLOW_WAVEPACKETSIZE;
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}
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timer_val = (Bit64u)record_packet_size * 1000000 / (param->samplerate << shift);
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bx_pc_system.activate_timer(record_timer_index, (Bit32u)timer_val, 1);
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}
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if (wavein_fd == -1) {
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return BX_SOUNDLOW_ERR;
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} else {
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if (memcmp(param, &wavein_param, sizeof(bx_pcm_param_t)) == 0) {
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return BX_SOUNDLOW_OK; // nothing to do
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}
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wavein_param = *param;
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}
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if (param->bits == 16) {
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if (signeddata == 1) {
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fmt = AFMT_S16_LE;
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} else {
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fmt = AFMT_U16_LE;
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}
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} else if (param->bits == 8) {
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if (signeddata == 1) {
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fmt = AFMT_S8;
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} else {
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fmt = AFMT_U8;
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}
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} else {
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return BX_SOUNDLOW_ERR;
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}
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// set frequency etc.
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ret = ioctl(wavein_fd, SNDCTL_DSP_RESET);
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if (ret != 0)
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BX_ERROR(("ioctl(SNDCTL_DSP_RESET): %s", strerror(errno)));
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ret = ioctl(wavein_fd, SNDCTL_DSP_SETFMT, &fmt);
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if (ret != 0) { // abort if the format is unknown, to avoid playing noise
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BX_ERROR(("ioctl(SNDCTL_DSP_SETFMT, %d): %s",
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fmt, strerror(errno)));
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return BX_SOUNDLOW_ERR;
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}
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ret = ioctl(wavein_fd, SNDCTL_DSP_CHANNELS, &channels);
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if (ret != 0) {
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BX_ERROR(("ioctl(SNDCTL_DSP_CHANNELS, %d): %s",
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channels, strerror(errno)));
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return BX_SOUNDLOW_ERR;
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}
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ret = ioctl(wavein_fd, SNDCTL_DSP_SPEED, &frequency);
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if (ret != 0) {
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BX_ERROR(("ioctl(SNDCTL_DSP_SPEED, %d): %s",
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frequency, strerror(errno)));
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return BX_SOUNDLOW_ERR;
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}
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return BX_SOUNDLOW_OK;
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}
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int bx_soundlow_wavein_oss_c::getwavepacket(int length, Bit8u data[])
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{
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int ret;
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ret = read(wavein_fd, data, length);
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if (ret == length) {
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return BX_SOUNDLOW_OK;
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} else {
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BX_ERROR(("OSS: write error"));
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return BX_SOUNDLOW_ERR;
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}
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}
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int bx_soundlow_wavein_oss_c::stopwaverecord()
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{
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if (record_timer_index != BX_NULL_TIMER_HANDLE) {
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bx_pc_system.deactivate_timer(record_timer_index);
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}
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return BX_SOUNDLOW_OK;
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}
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void bx_soundlow_wavein_oss_c::record_timer_handler(void *this_ptr)
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{
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bx_soundlow_wavein_oss_c *class_ptr = (bx_soundlow_wavein_oss_c *) this_ptr;
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class_ptr->record_timer();
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}
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void bx_soundlow_wavein_oss_c::record_timer(void)
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{
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record_handler(this, record_packet_size);
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}
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// bx_soundlow_midiout_oss_c class implementation
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bx_soundlow_midiout_oss_c::bx_soundlow_midiout_oss_c()
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:bx_soundlow_midiout_c()
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{
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midi = NULL;
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}
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bx_soundlow_midiout_oss_c::~bx_soundlow_midiout_oss_c()
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{
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closemidioutput();
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}
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int bx_soundlow_midiout_oss_c::openmidioutput(const char *mididev)
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{
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if ((mididev == NULL) || (strlen(mididev) < 1))
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return BX_SOUNDLOW_ERR;
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midi = fopen(mididev,"w");
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if (midi == NULL) {
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BX_ERROR(("Couldn't open midi output device %s: %s",
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mididev, strerror(errno)));
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return BX_SOUNDLOW_ERR;
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}
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return BX_SOUNDLOW_OK;
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}
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int bx_soundlow_midiout_oss_c::sendmidicommand(int delta, int command, int length, Bit8u data[])
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{
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UNUSED(delta);
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fputc(command, midi);
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fwrite(data, 1, length, midi);
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fflush(midi); // to start playing immediately
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return BX_SOUNDLOW_OK;
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}
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int bx_soundlow_midiout_oss_c::closemidioutput()
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{
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if (midi != NULL) {
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fclose(midi);
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midi = NULL;
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}
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return BX_SOUNDLOW_OK;
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}
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// bx_sound_oss_c class implementation
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bx_soundlow_waveout_c* bx_sound_oss_c::get_waveout()
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{
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if (waveout == NULL) {
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waveout = new bx_soundlow_waveout_oss_c();
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}
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return waveout;
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}
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bx_soundlow_wavein_c* bx_sound_oss_c::get_wavein()
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{
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if (wavein == NULL) {
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wavein = new bx_soundlow_wavein_oss_c();
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}
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return wavein;
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}
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bx_soundlow_midiout_c* bx_sound_oss_c::get_midiout()
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{
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if (midiout == NULL) {
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midiout = new bx_soundlow_midiout_oss_c();
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}
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return midiout;
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}
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#endif
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