diff options
Diffstat (limited to 'src/output/SolarisOutputPlugin.cxx')
| -rw-r--r-- | src/output/SolarisOutputPlugin.cxx | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/src/output/SolarisOutputPlugin.cxx b/src/output/SolarisOutputPlugin.cxx new file mode 100644 index 000000000..ac8910449 --- /dev/null +++ b/src/output/SolarisOutputPlugin.cxx @@ -0,0 +1,218 @@ +/* + * Copyright (C) 2003-2013 The Music Player Daemon Project + * http://www.musicpd.org + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "config.h" +#include "SolarisOutputPlugin.hxx" +#include "output_api.h" +#include "fd_util.h" + +#include <glib.h> + +#include <sys/stropts.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> + +#ifdef __sun +#include <sys/audio.h> +#else + +/* some fake declarations that allow build this plugin on systems + other than Solaris, just to see if it compiles */ + +#define AUDIO_GETINFO 0 +#define AUDIO_SETINFO 0 +#define AUDIO_ENCODING_LINEAR 0 + +struct audio_info { + struct { + unsigned sample_rate, channels, precision, encoding; + } play; +}; + +#endif + +#undef G_LOG_DOMAIN +#define G_LOG_DOMAIN "solaris_output" + +struct SolarisOutput { + struct audio_output base; + + /* configuration */ + const char *device; + + int fd; + + bool Initialize(const config_param *param, GError **error_r) { + return ao_base_init(&base, &solaris_output_plugin, param, + error_r); + } + + void Deinitialize() { + ao_base_finish(&base); + } +}; + +/** + * The quark used for GError.domain. + */ +static inline GQuark +solaris_output_quark(void) +{ + return g_quark_from_static_string("solaris_output"); +} + +static bool +solaris_output_test_default_device(void) +{ + struct stat st; + + return stat("/dev/audio", &st) == 0 && S_ISCHR(st.st_mode) && + access("/dev/audio", W_OK) == 0; +} + +static struct audio_output * +solaris_output_init(const config_param *param, GError **error_r) +{ + SolarisOutput *so = new SolarisOutput(); + if (!so->Initialize(param, error_r)) { + delete so; + return nullptr; + } + + so->device = config_get_block_string(param, "device", "/dev/audio"); + + return &so->base; +} + +static void +solaris_output_finish(struct audio_output *ao) +{ + SolarisOutput *so = (SolarisOutput *)ao; + + so->Deinitialize(); + delete so; +} + +static bool +solaris_output_open(struct audio_output *ao, struct audio_format *audio_format, + GError **error) +{ + SolarisOutput *so = (SolarisOutput *)ao; + struct audio_info info; + int ret, flags; + + /* support only 16 bit mono/stereo for now; nothing else has + been tested */ + audio_format->format = SAMPLE_FORMAT_S16; + + /* open the device in non-blocking mode */ + + so->fd = open_cloexec(so->device, O_WRONLY|O_NONBLOCK, 0); + if (so->fd < 0) { + g_set_error(error, solaris_output_quark(), errno, + "Failed to open %s: %s", + so->device, g_strerror(errno)); + return false; + } + + /* restore blocking mode */ + + flags = fcntl(so->fd, F_GETFL); + if (flags > 0 && (flags & O_NONBLOCK) != 0) + fcntl(so->fd, F_SETFL, flags & ~O_NONBLOCK); + + /* configure the audio device */ + + ret = ioctl(so->fd, AUDIO_GETINFO, &info); + if (ret < 0) { + g_set_error(error, solaris_output_quark(), errno, + "AUDIO_GETINFO failed: %s", g_strerror(errno)); + close(so->fd); + return false; + } + + info.play.sample_rate = audio_format->sample_rate; + info.play.channels = audio_format->channels; + info.play.precision = 16; + info.play.encoding = AUDIO_ENCODING_LINEAR; + + ret = ioctl(so->fd, AUDIO_SETINFO, &info); + if (ret < 0) { + g_set_error(error, solaris_output_quark(), errno, + "AUDIO_SETINFO failed: %s", g_strerror(errno)); + close(so->fd); + return false; + } + + return true; +} + +static void +solaris_output_close(struct audio_output *ao) +{ + SolarisOutput *so = (SolarisOutput *)ao; + + close(so->fd); +} + +static size_t +solaris_output_play(struct audio_output *ao, const void *chunk, size_t size, + GError **error) +{ + SolarisOutput *so = (SolarisOutput *)ao; + ssize_t nbytes; + + nbytes = write(so->fd, chunk, size); + if (nbytes <= 0) { + g_set_error(error, solaris_output_quark(), errno, + "Write failed: %s", g_strerror(errno)); + return 0; + } + + return nbytes; +} + +static void +solaris_output_cancel(struct audio_output *ao) +{ + SolarisOutput *so = (SolarisOutput *)ao; + + ioctl(so->fd, I_FLUSH); +} + +const struct audio_output_plugin solaris_output_plugin = { + "solaris", + solaris_output_test_default_device, + solaris_output_init, + solaris_output_finish, + nullptr, + nullptr, + solaris_output_open, + solaris_output_close, + nullptr, + nullptr, + solaris_output_play, + nullptr, + solaris_output_cancel, + nullptr, + nullptr, +}; |