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authorMax Kellermann <max@duempel.org>2011-09-17 08:54:50 +0200
committerMax Kellermann <max@duempel.org>2011-09-17 08:54:50 +0200
commit5e22fe488ed7209c6e470e542826da4674e93338 (patch)
tree7fdc279dbf7b5bfde9ff0d23253bf4d7827a7d00 /src/output/openal_plugin.c
parentc666cf1c4494e61286e0e80b6184b4605a4d40d9 (diff)
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output: rename plugin source files
Diffstat (limited to 'src/output/openal_plugin.c')
-rw-r--r--src/output/openal_plugin.c277
1 files changed, 0 insertions, 277 deletions
diff --git a/src/output/openal_plugin.c b/src/output/openal_plugin.c
deleted file mode 100644
index 23641c6c5..000000000
--- a/src/output/openal_plugin.c
+++ /dev/null
@@ -1,277 +0,0 @@
-/*
- * Copyright (C) 2003-2011 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 "output_api.h"
-#include "timer.h"
-
-#include <glib.h>
-
-#ifndef HAVE_OSX
-#include <AL/al.h>
-#include <AL/alc.h>
-#else
-#include <OpenAL/al.h>
-#include <OpenAL/alc.h>
-#endif
-
-#undef G_LOG_DOMAIN
-#define G_LOG_DOMAIN "openal"
-
-/* should be enough for buffer size = 2048 */
-#define NUM_BUFFERS 16
-
-struct openal_data {
- const char *device_name;
- ALCdevice *device;
- ALCcontext *context;
- struct timer *timer;
- ALuint buffers[NUM_BUFFERS];
- int filled;
- ALuint source;
- ALenum format;
- ALuint frequency;
-};
-
-static inline GQuark
-openal_output_quark(void)
-{
- return g_quark_from_static_string("openal_output");
-}
-
-static ALenum
-openal_audio_format(struct audio_format *audio_format)
-{
- switch (audio_format->format) {
- case SAMPLE_FORMAT_S16:
- if (audio_format->channels == 2)
- return AL_FORMAT_STEREO16;
- if (audio_format->channels == 1)
- return AL_FORMAT_MONO16;
- break;
-
- case SAMPLE_FORMAT_S8:
- if (audio_format->channels == 2)
- return AL_FORMAT_STEREO8;
- if (audio_format->channels == 1)
- return AL_FORMAT_MONO8;
- break;
-
- default:
- /* fall back to 16 bit */
- audio_format->format = SAMPLE_FORMAT_S16;
- if (audio_format->channels == 2)
- return AL_FORMAT_STEREO16;
- if (audio_format->channels == 1)
- return AL_FORMAT_MONO16;
- break;
- }
-
- return 0;
-}
-
-static bool
-openal_setup_context(struct openal_data *od,
- GError **error)
-{
- od->device = alcOpenDevice(od->device_name);
-
- if (od->device == NULL) {
- g_set_error(error, openal_output_quark(), 0,
- "Error opening OpenAL device \"%s\"\n",
- od->device_name);
- return false;
- }
-
- od->context = alcCreateContext(od->device, NULL);
-
- if (od->context == NULL) {
- g_set_error(error, openal_output_quark(), 0,
- "Error creating context for \"%s\"\n",
- od->device_name);
- alcCloseDevice(od->device);
- return false;
- }
-
- return true;
-}
-
-static void
-openal_unqueue_buffers(struct openal_data *od)
-{
- ALint num;
- ALuint buffer;
-
- alGetSourcei(od->source, AL_BUFFERS_QUEUED, &num);
-
- while (num--) {
- alSourceUnqueueBuffers(od->source, 1, &buffer);
- }
-}
-
-static void *
-openal_init(G_GNUC_UNUSED const struct audio_format *audio_format,
- const struct config_param *param,
- G_GNUC_UNUSED GError **error)
-{
- const char *device_name = config_get_block_string(param, "device", NULL);
- struct openal_data *od;
-
- if (device_name == NULL) {
- device_name = alcGetString(NULL, ALC_DEFAULT_DEVICE_SPECIFIER);
- }
-
- od = g_new(struct openal_data, 1);
- od->device_name = device_name;
-
- return od;
-}
-
-static void
-openal_finish(void *data)
-{
- struct openal_data *od = data;
-
- g_free(od);
-}
-
-static bool
-openal_open(void *data, struct audio_format *audio_format,
- GError **error)
-{
- struct openal_data *od = data;
-
- od->format = openal_audio_format(audio_format);
-
- if (!od->format) {
- struct audio_format_string s;
- g_set_error(error, openal_output_quark(), 0,
- "Unsupported audio format: %s",
- audio_format_to_string(audio_format, &s));
- return false;
- }
-
- if (!openal_setup_context(od, error)) {
- return false;
- }
-
- alcMakeContextCurrent(od->context);
- alGenBuffers(NUM_BUFFERS, od->buffers);
-
- if (alGetError() != AL_NO_ERROR) {
- g_set_error(error, openal_output_quark(), 0,
- "Failed to generate buffers");
- return false;
- }
-
- alGenSources(1, &od->source);
-
- if (alGetError() != AL_NO_ERROR) {
- g_set_error(error, openal_output_quark(), 0,
- "Failed to generate source");
- alDeleteBuffers(NUM_BUFFERS, od->buffers);
- return false;
- }
-
- od->filled = 0;
- od->timer = timer_new(audio_format);
- od->frequency = audio_format->sample_rate;
-
- return true;
-}
-
-static void
-openal_close(void *data)
-{
- struct openal_data *od = data;
-
- timer_free(od->timer);
- alcMakeContextCurrent(od->context);
- alDeleteSources(1, &od->source);
- alDeleteBuffers(NUM_BUFFERS, od->buffers);
- alcDestroyContext(od->context);
- alcCloseDevice(od->device);
-}
-
-static size_t
-openal_play(void *data, const void *chunk, size_t size,
- G_GNUC_UNUSED GError **error)
-{
- struct openal_data *od = data;
- ALuint buffer;
- ALint num, state;
-
- if (alcGetCurrentContext() != od->context) {
- alcMakeContextCurrent(od->context);
- }
-
- alGetSourcei(od->source, AL_BUFFERS_PROCESSED, &num);
-
- if (od->filled < NUM_BUFFERS) {
- /* fill all buffers */
- buffer = od->buffers[od->filled];
- od->filled++;
- } else {
- /* wait for processed buffer */
- while (num < 1) {
- if (!od->timer->started) {
- timer_start(od->timer);
- } else {
- timer_sync(od->timer);
- }
-
- timer_add(od->timer, size);
-
- alGetSourcei(od->source, AL_BUFFERS_PROCESSED, &num);
- }
-
- alSourceUnqueueBuffers(od->source, 1, &buffer);
- }
-
- alBufferData(buffer, od->format, chunk, size, od->frequency);
- alSourceQueueBuffers(od->source, 1, &buffer);
- alGetSourcei(od->source, AL_SOURCE_STATE, &state);
-
- if (state != AL_PLAYING) {
- alSourcePlay(od->source);
- }
-
- return size;
-}
-
-static void
-openal_cancel(void *data)
-{
- struct openal_data *od = data;
-
- od->filled = 0;
- alcMakeContextCurrent(od->context);
- alSourceStop(od->source);
- openal_unqueue_buffers(od);
-}
-
-const struct audio_output_plugin openal_output_plugin = {
- .name = "openal",
- .init = openal_init,
- .finish = openal_finish,
- .open = openal_open,
- .close = openal_close,
- .play = openal_play,
- .cancel = openal_cancel,
-};