FCL/interim/QEMU: comparison symbian-qemu-0.9.1-12/qemu-symbian-svp/audio/audio

equal deleted inserted replaced

-:ffa851df0825
+:2fb8b9db1c86
+/*
+* QEMU Audio subsystem header
+*
+* Copyright (c) 2005 Vassili Karpov (malc)
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+* THE SOFTWARE.
+*/
+#ifdef DAC
+#define NAME "playback"
+#define HWBUF hw->mix_buf
+#define TYPE out
+#define HW HWVoiceOut
+#define SW SWVoiceOut
+#else
+#define NAME "capture"
+#define TYPE in
+#define HW HWVoiceIn
+#define SW SWVoiceIn
+#define HWBUF hw->conv_buf
+#endif
+static void glue (audio_init_nb_voices_, TYPE) (
+AudioState *s,
+struct audio_driver *drv
+)
+{
+int max_voices = glue (drv->max_voices_, TYPE);
+int voice_size = glue (drv->voice_size_, TYPE);
+if (glue (s->nb_hw_voices_, TYPE) > max_voices) {
+if (!max_voices) {
+#ifdef DAC
+dolog ("Driver `%s' does not support " NAME "\n", drv->name);
+#endif
+}
+else {
+dolog ("Driver `%s' does not support %d " NAME " voices, max %d\n",
+drv->name,
+glue (s->nb_hw_voices_, TYPE),
+max_voices);
+}
+glue (s->nb_hw_voices_, TYPE) = max_voices;
+}
+if (audio_bug (AUDIO_FUNC, !voice_size && max_voices)) {
+dolog ("drv=`%s' voice_size=0 max_voices=%d\n",
+drv->name, max_voices);
+glue (s->nb_hw_voices_, TYPE) = 0;
+}
+if (audio_bug (AUDIO_FUNC, voice_size && !max_voices)) {
+dolog ("drv=`%s' voice_size=%d max_voices=0\n",
+drv->name, voice_size);
+}
+}
+static void glue (audio_pcm_hw_free_resources_, TYPE) (HW *hw)
+{
+if (HWBUF) {
+qemu_free (HWBUF);
+}
+HWBUF = NULL;
+}
+static int glue (audio_pcm_hw_alloc_resources_, TYPE) (HW *hw)
+{
+HWBUF = audio_calloc (AUDIO_FUNC, hw->samples, sizeof (struct st_sample));
+if (!HWBUF) {
+dolog ("Could not allocate " NAME " buffer (%d samples)\n",
+hw->samples);
+return -1;
+}
+return 0;
+}
+static void glue (audio_pcm_sw_free_resources_, TYPE) (SW *sw)
+{
+if (sw->buf) {
+qemu_free (sw->buf);
+}
+if (sw->rate) {
+st_rate_stop (sw->rate);
+}
+sw->buf = NULL;
+sw->rate = NULL;
+}
+static int glue (audio_pcm_sw_alloc_resources_, TYPE) (SW *sw)
+{
+int samples;
+#ifdef DAC
+samples = sw->hw->samples;
+#else
+samples = ((int64_t) sw->hw->samples << 32) / sw->ratio;
+#endif
+sw->buf = audio_calloc (AUDIO_FUNC, samples, sizeof (struct st_sample));
+if (!sw->buf) {
+dolog ("Could not allocate buffer for `%s' (%d samples)\n",
+SW_NAME (sw), samples);
+return -1;
+}
+#ifdef DAC
+sw->rate = st_rate_start (sw->info.freq, sw->hw->info.freq);
+#else
+sw->rate = st_rate_start (sw->hw->info.freq, sw->info.freq);
+#endif
+if (!sw->rate) {
+qemu_free (sw->buf);
+sw->buf = NULL;
+return -1;
+}
+return 0;
+}
+static int glue (audio_pcm_sw_init_, TYPE) (
+SW *sw,
+HW *hw,
+const char *name,
+struct audsettings *as
+)
+{
+int err;
+audio_pcm_init_info (&sw->info, as);
+sw->hw = hw;
+sw->active = 0;
+#ifdef DAC
+sw->ratio = ((int64_t) sw->hw->info.freq << 32) / sw->info.freq;
+sw->total_hw_samples_mixed = 0;
+sw->empty = 1;
+#else
+sw->ratio = ((int64_t) sw->info.freq << 32) / sw->hw->info.freq;
+#endif
+#ifdef DAC
+sw->conv = mixeng_conv
+#else
+sw->clip = mixeng_clip
+#endif
+[sw->info.nchannels == 2]
+[sw->info.sign]
+[sw->info.swap_endianness]
+[audio_bits_to_index (sw->info.bits)];
+sw->name = qemu_strdup (name);
+err = glue (audio_pcm_sw_alloc_resources_, TYPE) (sw);
+if (err) {
+qemu_free (sw->name);
+sw->name = NULL;
+}
+return err;
+}
+static void glue (audio_pcm_sw_fini_, TYPE) (SW *sw)
+{
+glue (audio_pcm_sw_free_resources_, TYPE) (sw);
+if (sw->name) {
+qemu_free (sw->name);
+sw->name = NULL;
+}
+}
+static void glue (audio_pcm_hw_add_sw_, TYPE) (HW *hw, SW *sw)
+{
+LIST_INSERT_HEAD (&hw->sw_head, sw, entries);
+}
+static void glue (audio_pcm_hw_del_sw_, TYPE) (SW *sw)
+{
+LIST_REMOVE (sw, entries);
+}
+static void glue (audio_pcm_hw_gc_, TYPE) (AudioState *s, HW **hwp)
+{
+HW *hw = *hwp;
+if (!hw->sw_head.lh_first) {
+#ifdef DAC
+audio_detach_capture (hw);
+#endif
+LIST_REMOVE (hw, entries);
+glue (s->nb_hw_voices_, TYPE) += 1;
+glue (audio_pcm_hw_free_resources_ ,TYPE) (hw);
+glue (hw->pcm_ops->fini_, TYPE) (hw);
+qemu_free (hw);
+*hwp = NULL;
+}
+}
+static HW *glue (audio_pcm_hw_find_any_, TYPE) (AudioState *s, HW *hw)
+{
+return hw ? hw->entries.le_next : s->glue (hw_head_, TYPE).lh_first;
+}
+static HW *glue (audio_pcm_hw_find_any_enabled_, TYPE) (AudioState *s, HW *hw)
+{
+while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (s, hw))) {
+if (hw->enabled) {
+return hw;
+}
+}
+return NULL;
+}
+static HW *glue (audio_pcm_hw_find_specific_, TYPE) (
+AudioState *s,
+HW *hw,
+struct audsettings *as
+)
+{
+while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (s, hw))) {
+if (audio_pcm_info_eq (&hw->info, as)) {
+return hw;
+}
+}
+return NULL;
+}
+static HW *glue (audio_pcm_hw_add_new_, TYPE) (AudioState *s,
+struct audsettings *as)
+{
+HW *hw;
+struct audio_driver *drv = s->drv;
+if (!glue (s->nb_hw_voices_, TYPE)) {
+return NULL;
+}
+if (audio_bug (AUDIO_FUNC, !drv)) {
+dolog ("No host audio driver\n");
+return NULL;
+}
+if (audio_bug (AUDIO_FUNC, !drv->pcm_ops)) {
+dolog ("Host audio driver without pcm_ops\n");
+return NULL;
+}
+hw = audio_calloc (AUDIO_FUNC, 1, glue (drv->voice_size_, TYPE));
+if (!hw) {
+dolog ("Can not allocate voice `%s' size %d\n",
+drv->name, glue (drv->voice_size_, TYPE));
+return NULL;
+}
+hw->pcm_ops = drv->pcm_ops;
+LIST_INIT (&hw->sw_head);
+#ifdef DAC
+LIST_INIT (&hw->cap_head);
+#endif
+if (glue (hw->pcm_ops->init_, TYPE) (hw, as)) {
+goto err0;
+}
+if (audio_bug (AUDIO_FUNC, hw->samples <= 0)) {
+dolog ("hw->samples=%d\n", hw->samples);
+goto err1;
+}
+#ifdef DAC
+hw->clip = mixeng_clip
+#else
+hw->conv = mixeng_conv
+#endif
+[hw->info.nchannels == 2]
+[hw->info.sign]
+[hw->info.swap_endianness]
+[audio_bits_to_index (hw->info.bits)];
+if (glue (audio_pcm_hw_alloc_resources_, TYPE) (hw)) {
+goto err1;
+}
+LIST_INSERT_HEAD (&s->glue (hw_head_, TYPE), hw, entries);
+glue (s->nb_hw_voices_, TYPE) -= 1;
+#ifdef DAC
+audio_attach_capture (s, hw);
+#endif
+return hw;
+err1:
+glue (hw->pcm_ops->fini_, TYPE) (hw);
+err0:
+qemu_free (hw);
+return NULL;
+}
+static HW *glue (audio_pcm_hw_add_, TYPE) (AudioState *s,
+struct audsettings *as)
+{
+HW *hw;
+if (glue (conf.fixed_, TYPE).enabled && glue (conf.fixed_, TYPE).greedy) {
+hw = glue (audio_pcm_hw_add_new_, TYPE) (s, as);
+if (hw) {
+return hw;
+}
+}
+hw = glue (audio_pcm_hw_find_specific_, TYPE) (s, NULL, as);
+if (hw) {
+return hw;
+}
+hw = glue (audio_pcm_hw_add_new_, TYPE) (s, as);
+if (hw) {
+return hw;
+}
+return glue (audio_pcm_hw_find_any_, TYPE) (s, NULL);
+}
+static SW *glue (audio_pcm_create_voice_pair_, TYPE) (
+AudioState *s,
+const char *sw_name,
+struct audsettings *as
+)
+{
+SW *sw;
+HW *hw;
+struct audsettings hw_as;
+if (glue (conf.fixed_, TYPE).enabled) {
+hw_as = glue (conf.fixed_, TYPE).settings;
+}
+else {
+hw_as = *as;
+}
+sw = audio_calloc (AUDIO_FUNC, 1, sizeof (*sw));
+if (!sw) {
+dolog ("Could not allocate soft voice `%s' (%zu bytes)\n",
+sw_name ? sw_name : "unknown", sizeof (*sw));
+goto err1;
+}
+hw = glue (audio_pcm_hw_add_, TYPE) (s, &hw_as);
+if (!hw) {
+goto err2;
+}
+glue (audio_pcm_hw_add_sw_, TYPE) (hw, sw);
+if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, sw_name, as)) {
+goto err3;
+}
+return sw;
+err3:
+glue (audio_pcm_hw_del_sw_, TYPE) (sw);
+glue (audio_pcm_hw_gc_, TYPE) (s, &hw);
+err2:
+qemu_free (sw);
+err1:
+return NULL;
+}
+static void glue (audio_close_, TYPE) (AudioState *s, SW *sw)
+{
+glue (audio_pcm_sw_fini_, TYPE) (sw);
+glue (audio_pcm_hw_del_sw_, TYPE) (sw);
+glue (audio_pcm_hw_gc_, TYPE) (s, &sw->hw);
+qemu_free (sw);
+}
+void glue (AUD_close_, TYPE) (QEMUSoundCard *card, SW *sw)
+{
+if (sw) {
+if (audio_bug (AUDIO_FUNC, !card || !card->audio)) {
+dolog ("card=%p card->audio=%p\n",
+card, card ? card->audio : NULL);
+return;
+}
+glue (audio_close_, TYPE) (card->audio, sw);
+}
+}
+SW *glue (AUD_open_, TYPE) (
+QEMUSoundCard *card,
+SW *sw,
+const char *name,
+void *callback_opaque ,
+audio_callback_fn_t callback_fn,
+struct audsettings *as
+)
+{
+AudioState *s;
+#ifdef DAC
+int live = 0;
+SW *old_sw = NULL;
+#endif
+ldebug ("open %s, freq %d, nchannels %d, fmt %d\n",
+name, as->freq, as->nchannels, as->fmt);
+if (audio_bug (AUDIO_FUNC,
+!card || !card->audio || !name || !callback_fn || !as)) {
+dolog ("card=%p card->audio=%p name=%p callback_fn=%p as=%p\n",
+card, card ? card->audio : NULL, name, callback_fn, as);
+goto fail;
+}
+s = card->audio;
+if (audio_bug (AUDIO_FUNC, audio_validate_settings (as))) {
+audio_print_settings (as);
+goto fail;
+}
+if (audio_bug (AUDIO_FUNC, !s->drv)) {
+dolog ("Can not open `%s' (no host audio driver)\n", name);
+goto fail;
+}
+if (sw && audio_pcm_info_eq (&sw->info, as)) {
+return sw;
+}
+#ifdef DAC
+if (conf.plive && sw && (!sw->active && !sw->empty)) {
+live = sw->total_hw_samples_mixed;
+#ifdef DEBUG_PLIVE
+dolog ("Replacing voice %s with %d live samples\n", SW_NAME (sw), live);
+dolog ("Old %s freq %d, bits %d, channels %d\n",
+SW_NAME (sw), sw->info.freq, sw->info.bits, sw->info.nchannels);
+dolog ("New %s freq %d, bits %d, channels %d\n",
+name,
+freq,
+(fmt == AUD_FMT_S16 || fmt == AUD_FMT_U16) ? 16 : 8,
+nchannels);
+#endif
+if (live) {
+old_sw = sw;
+old_sw->callback.fn = NULL;
+sw = NULL;
+}
+}
+#endif
+if (!glue (conf.fixed_, TYPE).enabled && sw) {
+glue (AUD_close_, TYPE) (card, sw);
+sw = NULL;
+}
+if (sw) {
+HW *hw = sw->hw;
+if (!hw) {
+dolog ("Internal logic error voice `%s' has no hardware store\n",
+SW_NAME (sw));
+goto fail;
+}
+glue (audio_pcm_sw_fini_, TYPE) (sw);
+if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, name, as)) {
+goto fail;
+}
+}
+else {
+sw = glue (audio_pcm_create_voice_pair_, TYPE) (s, name, as);
+if (!sw) {
+dolog ("Failed to create voice `%s'\n", name);
+return NULL;
+}
+}
+if (sw) {
+sw->vol = nominal_volume;
+sw->callback.fn = callback_fn;
+sw->callback.opaque = callback_opaque;
+#ifdef DAC
+if (live) {
+int mixed =
+(live << old_sw->info.shift)
+* old_sw->info.bytes_per_second
+/ sw->info.bytes_per_second;
+#ifdef DEBUG_PLIVE
+dolog ("Silence will be mixed %d\n", mixed);
+#endif
+sw->total_hw_samples_mixed += mixed;
+}
+#endif
+#ifdef DEBUG_AUDIO
+dolog ("%s\n", name);
+audio_pcm_print_info ("hw", &sw->hw->info);
+audio_pcm_print_info ("sw", &sw->info);
+#endif
+}
+return sw;
+fail:
+glue (AUD_close_, TYPE) (card, sw);
+return NULL;
+}
+int glue (AUD_is_active_, TYPE) (SW *sw)
+{
+return sw ? sw->active : 0;
+}
+void glue (AUD_init_time_stamp_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts)
+{
+if (!sw) {
+return;
+}
+ts->old_ts = sw->hw->ts_helper;
+}
+uint64_t glue (AUD_get_elapsed_usec_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts)
+{
+uint64_t delta, cur_ts, old_ts;
+if (!sw) {
+return 0;
+}
+cur_ts = sw->hw->ts_helper;
+old_ts = ts->old_ts;
+/* dolog ("cur %lld old %lld\n", cur_ts, old_ts); */
+if (cur_ts >= old_ts) {
+delta = cur_ts - old_ts;
+}
+else {
+delta = UINT64_MAX - old_ts + cur_ts;
+}
+if (!delta) {
+return 0;
+}
+return (delta * sw->hw->info.freq) / 1000000;
+}
+#undef TYPE
+#undef HW
+#undef SW
+#undef HWBUF
+#undef NAME