[qemu.git] / audio / audio_template.h

/*
 * 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) (struct audio_driver *drv)
{
    AudioState *s = &glob_audio_state;
    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;

    samples = ((int64_t) sw->hw->samples << 32) / sw->ratio;

    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)
{
    QLIST_INSERT_HEAD (&hw->sw_head, sw, entries);
}

static void glue (audio_pcm_hw_del_sw_, TYPE) (SW *sw)
{
    QLIST_REMOVE (sw, entries);
}

static void glue (audio_pcm_hw_gc_, TYPE) (HW **hwp)
{
    AudioState *s = &glob_audio_state;
    HW *hw = *hwp;

    if (!hw->sw_head.lh_first) {
#ifdef DAC
        audio_detach_capture (hw);
#endif
        QLIST_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) (HW *hw)
{
    AudioState *s = &glob_audio_state;
    return hw ? hw->entries.le_next : glue (s->hw_head_, TYPE).lh_first;
}

static HW *glue (audio_pcm_hw_find_any_enabled_, TYPE) (HW *hw)
{
    while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (hw))) {
        if (hw->enabled) {
            return hw;
        }
    }
    return NULL;
}

static HW *glue (audio_pcm_hw_find_specific_, TYPE) (
    HW *hw,
    struct audsettings *as
    )
{
    while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (hw))) {
        if (audio_pcm_info_eq (&hw->info, as)) {
            return hw;
        }
    }
    return NULL;
}

static HW *glue (audio_pcm_hw_add_new_, TYPE) (struct audsettings *as)
{
    HW *hw;
    AudioState *s = &glob_audio_state;
    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;
    QLIST_INIT (&hw->sw_head);
#ifdef DAC
    QLIST_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;
    }

    QLIST_INSERT_HEAD (&s->glue (hw_head_, TYPE), hw, entries);
    glue (s->nb_hw_voices_, TYPE) -= 1;
#ifdef DAC
    audio_attach_capture (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) (struct audsettings *as)
{
    HW *hw;

    if (glue (conf.fixed_, TYPE).enabled && glue (conf.fixed_, TYPE).greedy) {
        hw = glue (audio_pcm_hw_add_new_, TYPE) (as);
        if (hw) {
            return hw;
        }
    }

    hw = glue (audio_pcm_hw_find_specific_, TYPE) (NULL, as);
    if (hw) {
        return hw;
    }

    hw = glue (audio_pcm_hw_add_new_, TYPE) (as);
    if (hw) {
        return hw;
    }

    return glue (audio_pcm_hw_find_any_, TYPE) (NULL);
}

static SW *glue (audio_pcm_create_voice_pair_, TYPE) (
    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) (&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) (&hw);
err2:
    qemu_free (sw);
err1:
    return NULL;
}

static void glue (audio_close_, TYPE) (SW *sw)
{
    glue (audio_pcm_sw_fini_, TYPE) (sw);
    glue (audio_pcm_hw_del_sw_, TYPE) (sw);
    glue (audio_pcm_hw_gc_, TYPE) (&sw->hw);
    qemu_free (sw);
}

void glue (AUD_close_, TYPE) (QEMUSoundCard *card, SW *sw)
{
    if (sw) {
        if (audio_bug (AUDIO_FUNC, !card)) {
            dolog ("card=%p\n", card);
            return;
        }

        glue (audio_close_, TYPE) (sw);
    }
}

SW *glue (AUD_open_, TYPE) (
    QEMUSoundCard *card,
    SW *sw,
    const char *name,
    void *callback_opaque ,
    audio_callback_fn callback_fn,
    struct audsettings *as
    )
{
    AudioState *s = &glob_audio_state;
#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 || !name || !callback_fn || !as)) {
        dolog ("card=%p name=%p callback_fn=%p as=%p\n",
               card, name, callback_fn, as);
        goto fail;
    }

    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,
               as->freq,
               (as->fmt == AUD_FMT_S16 || as->fmt == AUD_FMT_U16) ? 16 : 8,
               as->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) (name, as);
        if (!sw) {
            dolog ("Failed to create voice `%s'\n", name);
            return NULL;
        }
    }

    sw->card = card;
    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 %" PRId64 " old %" PRId64 "\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 muldiv64 (delta, sw->hw->info.freq, 1000000);
}

#undef TYPE
#undef HW
#undef SW
#undef HWBUF
#undef NAME
Commit	Line	Data
1d14ffa9 FB	1	/*
	2	* QEMU Audio subsystem header
	3	*
	4	* Copyright (c) 2005 Vassili Karpov (malc)
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a copy
	7	* of this software and associated documentation files (the "Software"), to deal
	8	* in the Software without restriction, including without limitation the rights
	9	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	10	* copies of the Software, and to permit persons to whom the Software is
	11	* furnished to do so, subject to the following conditions:
	12	*
	13	* The above copyright notice and this permission notice shall be included in
	14	* all copies or substantial portions of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	22	* THE SOFTWARE.
	23	*/
	24
	25	#ifdef DAC
571ec3d6 FB	26	#define NAME "playback"
571ec3d6 FB	27	#define HWBUF hw->mix_buf
1d14ffa9	28	#define TYPE out
571ec3d6 FB	29	#define HW HWVoiceOut
571ec3d6 FB	30	#define SW SWVoiceOut
1d14ffa9	31	#else
571ec3d6	32	#define NAME "capture"
1d14ffa9	33	#define TYPE in
571ec3d6 FB	34	#define HW HWVoiceIn
	35	#define SW SWVoiceIn
	36	#define HWBUF hw->conv_buf
1d14ffa9 FB	37	#endif
1d14ffa9 FB	38
1a7dafce	39	static void glue (audio_init_nb_voices_, TYPE) (struct audio_driver *drv)
c0fe3827	40	{
1a7dafce	41	AudioState *s = &glob_audio_state;
571ec3d6 FB	42	int max_voices = glue (drv->max_voices_, TYPE);
571ec3d6 FB	43	int voice_size = glue (drv->voice_size_, TYPE);
c0fe3827	44
571ec3d6 FB	45	if (glue (s->nb_hw_voices_, TYPE) > max_voices) {
	46	if (!max_voices) {
	47	#ifdef DAC
	48	dolog ("Driver `%s' does not support " NAME "\n", drv->name);
	49	#endif
	50	}
	51	else {
	52	dolog ("Driver `%s' does not support %d " NAME " voices, max %d\n",
	53	drv->name,
	54	glue (s->nb_hw_voices_, TYPE),
	55	max_voices);
	56	}
	57	glue (s->nb_hw_voices_, TYPE) = max_voices;
c0fe3827 FB	58	}
c0fe3827 FB	59
571ec3d6 FB	60	if (audio_bug (AUDIO_FUNC, !voice_size && max_voices)) {
	61	dolog ("drv=`%s' voice_size=0 max_voices=%d\n",
	62	drv->name, max_voices);
	63	glue (s->nb_hw_voices_, TYPE) = 0;
	64	}
	65
	66	if (audio_bug (AUDIO_FUNC, voice_size && !max_voices)) {
	67	dolog ("drv=`%s' voice_size=%d max_voices=0\n",
	68	drv->name, voice_size);
	69	}
	70	}
	71
	72	static void glue (audio_pcm_hw_free_resources_, TYPE) (HW *hw)
	73	{
	74	if (HWBUF) {
	75	qemu_free (HWBUF);
	76	}
	77
	78	HWBUF = NULL;
	79	}
	80
	81	static int glue (audio_pcm_hw_alloc_resources_, TYPE) (HW *hw)
	82	{
1ea879e5	83	HWBUF = audio_calloc (AUDIO_FUNC, hw->samples, sizeof (struct st_sample));
571ec3d6 FB	84	if (!HWBUF) {
	85	dolog ("Could not allocate " NAME " buffer (%d samples)\n",
	86	hw->samples);
c0fe3827 FB	87	return -1;
	88	}
	89
571ec3d6 FB	90	return 0;
	91	}
	92
	93	static void glue (audio_pcm_sw_free_resources_, TYPE) (SW *sw)
	94	{
	95	if (sw->buf) {
	96	qemu_free (sw->buf);
	97	}
	98
	99	if (sw->rate) {
	100	st_rate_stop (sw->rate);
	101	}
	102
	103	sw->buf = NULL;
	104	sw->rate = NULL;
	105	}
	106
	107	static int glue (audio_pcm_sw_alloc_resources_, TYPE) (SW *sw)
	108	{
	109	int samples;
	110
571ec3d6	111	samples = ((int64_t) sw->hw->samples << 32) / sw->ratio;
c0fe3827	112
1ea879e5	113	sw->buf = audio_calloc (AUDIO_FUNC, samples, sizeof (struct st_sample));
571ec3d6 FB	114	if (!sw->buf) {
	115	dolog ("Could not allocate buffer for `%s' (%d samples)\n",
	116	SW_NAME (sw), samples);
c0fe3827 FB	117	return -1;
	118	}
	119
571ec3d6 FB	120	#ifdef DAC
	121	sw->rate = st_rate_start (sw->info.freq, sw->hw->info.freq);
	122	#else
	123	sw->rate = st_rate_start (sw->hw->info.freq, sw->info.freq);
	124	#endif
	125	if (!sw->rate) {
	126	qemu_free (sw->buf);
	127	sw->buf = NULL;
	128	return -1;
	129	}
c0fe3827 FB	130	return 0;
	131	}
	132
571ec3d6 FB	133	static int glue (audio_pcm_sw_init_, TYPE) (
	134	SW *sw,
	135	HW *hw,
	136	const char *name,
1ea879e5	137	struct audsettings *as
571ec3d6 FB	138	)
	139	{
	140	int err;
	141
d929eba5	142	audio_pcm_init_info (&sw->info, as);
571ec3d6 FB	143	sw->hw = hw;
	144	sw->active = 0;
	145	#ifdef DAC
	146	sw->ratio = ((int64_t) sw->hw->info.freq << 32) / sw->info.freq;
	147	sw->total_hw_samples_mixed = 0;
	148	sw->empty = 1;
	149	#else
	150	sw->ratio = ((int64_t) sw->info.freq << 32) / sw->hw->info.freq;
	151	#endif
	152
	153	#ifdef DAC
	154	sw->conv = mixeng_conv
	155	#else
	156	sw->clip = mixeng_clip
	157	#endif
	158	[sw->info.nchannels == 2]
	159	[sw->info.sign]
d929eba5	160	[sw->info.swap_endianness]
f941aa25	161	[audio_bits_to_index (sw->info.bits)];
571ec3d6 FB	162
	163	sw->name = qemu_strdup (name);
	164	err = glue (audio_pcm_sw_alloc_resources_, TYPE) (sw);
	165	if (err) {
	166	qemu_free (sw->name);
	167	sw->name = NULL;
	168	}
	169	return err;
	170	}
	171
1d14ffa9 FB	172	static void glue (audio_pcm_sw_fini_, TYPE) (SW *sw)
	173	{
	174	glue (audio_pcm_sw_free_resources_, TYPE) (sw);
	175	if (sw->name) {
	176	qemu_free (sw->name);
	177	sw->name = NULL;
	178	}
	179	}
	180
	181	static void glue (audio_pcm_hw_add_sw_, TYPE) (HW hw, SW sw)
	182	{
72cf2d4f	183	QLIST_INSERT_HEAD (&hw->sw_head, sw, entries);
1d14ffa9 FB	184	}
	185
	186	static void glue (audio_pcm_hw_del_sw_, TYPE) (SW *sw)
	187	{
72cf2d4f	188	QLIST_REMOVE (sw, entries);
1d14ffa9 FB	189	}
1d14ffa9 FB	190
1a7dafce	191	static void glue (audio_pcm_hw_gc_, TYPE) (HW **hwp)
1d14ffa9	192	{
1a7dafce	193	AudioState *s = &glob_audio_state;
c0fe3827	194	HW hw = hwp;
1d14ffa9	195
1d14ffa9	196	if (!hw->sw_head.lh_first) {
8ead62cf FB	197	#ifdef DAC
	198	audio_detach_capture (hw);
	199	#endif
72cf2d4f	200	QLIST_REMOVE (hw, entries);
c0fe3827 FB	201	glue (s->nb_hw_voices_, TYPE) += 1;
	202	glue (audio_pcm_hw_free_resources_ ,TYPE) (hw);
	203	glue (hw->pcm_ops->fini_, TYPE) (hw);
	204	qemu_free (hw);
	205	*hwp = NULL;
1d14ffa9 FB	206	}
	207	}
	208
1a7dafce	209	static HW glue (audio_pcm_hw_find_any_, TYPE) (HW hw)
1d14ffa9	210	{
1a7dafce	211	AudioState *s = &glob_audio_state;
1a7dafce	212	return hw ? hw->entries.le_next : glue (s->hw_head_, TYPE).lh_first;
1d14ffa9 FB	213	}
1d14ffa9 FB	214
1a7dafce	215	static HW glue (audio_pcm_hw_find_any_enabled_, TYPE) (HW hw)
1d14ffa9	216	{
1a7dafce	217	while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (hw))) {
c0fe3827	218	if (hw->enabled) {
1d14ffa9 FB	219	return hw;
	220	}
	221	}
	222	return NULL;
	223	}
	224
1d14ffa9 FB	225	static HW *glue (audio_pcm_hw_find_specific_, TYPE) (
1d14ffa9 FB	226	HW *hw,
1ea879e5	227	struct audsettings *as
1d14ffa9 FB	228	)
1d14ffa9 FB	229	{
1a7dafce	230	while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (hw))) {
c0fe3827	231	if (audio_pcm_info_eq (&hw->info, as)) {
1d14ffa9 FB	232	return hw;
	233	}
	234	}
	235	return NULL;
	236	}
	237
1a7dafce	238	static HW glue (audio_pcm_hw_add_new_, TYPE) (struct audsettings as)
1d14ffa9 FB	239	{
1d14ffa9 FB	240	HW *hw;
1a7dafce	241	AudioState *s = &glob_audio_state;
571ec3d6	242	struct audio_driver *drv = s->drv;
1d14ffa9	243
571ec3d6 FB	244	if (!glue (s->nb_hw_voices_, TYPE)) {
	245	return NULL;
	246	}
1d14ffa9	247
571ec3d6 FB	248	if (audio_bug (AUDIO_FUNC, !drv)) {
	249	dolog ("No host audio driver\n");
	250	return NULL;
1d14ffa9 FB	251	}
1d14ffa9 FB	252
571ec3d6 FB	253	if (audio_bug (AUDIO_FUNC, !drv->pcm_ops)) {
	254	dolog ("Host audio driver without pcm_ops\n");
	255	return NULL;
	256	}
	257
	258	hw = audio_calloc (AUDIO_FUNC, 1, glue (drv->voice_size_, TYPE));
	259	if (!hw) {
	260	dolog ("Can not allocate voice `%s' size %d\n",
	261	drv->name, glue (drv->voice_size_, TYPE));
	262	return NULL;
	263	}
	264
	265	hw->pcm_ops = drv->pcm_ops;
72cf2d4f	266	QLIST_INIT (&hw->sw_head);
8ead62cf	267	#ifdef DAC
72cf2d4f	268	QLIST_INIT (&hw->cap_head);
8ead62cf	269	#endif
571ec3d6 FB	270	if (glue (hw->pcm_ops->init_, TYPE) (hw, as)) {
	271	goto err0;
	272	}
	273
	274	if (audio_bug (AUDIO_FUNC, hw->samples <= 0)) {
	275	dolog ("hw->samples=%d\n", hw->samples);
	276	goto err1;
	277	}
	278
	279	#ifdef DAC
	280	hw->clip = mixeng_clip
	281	#else
	282	hw->conv = mixeng_conv
	283	#endif
	284	[hw->info.nchannels == 2]
	285	[hw->info.sign]
d929eba5	286	[hw->info.swap_endianness]
f941aa25	287	[audio_bits_to_index (hw->info.bits)];
571ec3d6 FB	288
	289	if (glue (audio_pcm_hw_alloc_resources_, TYPE) (hw)) {
	290	goto err1;
	291	}
	292
72cf2d4f	293	QLIST_INSERT_HEAD (&s->glue (hw_head_, TYPE), hw, entries);
571ec3d6	294	glue (s->nb_hw_voices_, TYPE) -= 1;
8ead62cf	295	#ifdef DAC
1a7dafce	296	audio_attach_capture (hw);
8ead62cf	297	#endif
571ec3d6 FB	298	return hw;
	299
	300	err1:
	301	glue (hw->pcm_ops->fini_, TYPE) (hw);
	302	err0:
	303	qemu_free (hw);
1d14ffa9 FB	304	return NULL;
	305	}
	306
1a7dafce	307	static HW glue (audio_pcm_hw_add_, TYPE) (struct audsettings as)
1d14ffa9 FB	308	{
	309	HW *hw;
	310
c0fe3827	311	if (glue (conf.fixed_, TYPE).enabled && glue (conf.fixed_, TYPE).greedy) {
1a7dafce	312	hw = glue (audio_pcm_hw_add_new_, TYPE) (as);
1d14ffa9 FB	313	if (hw) {
	314	return hw;
	315	}
	316	}
	317
1a7dafce	318	hw = glue (audio_pcm_hw_find_specific_, TYPE) (NULL, as);
1d14ffa9 FB	319	if (hw) {
	320	return hw;
	321	}
	322
1a7dafce	323	hw = glue (audio_pcm_hw_add_new_, TYPE) (as);
1d14ffa9 FB	324	if (hw) {
	325	return hw;
	326	}
	327
1a7dafce	328	return glue (audio_pcm_hw_find_any_, TYPE) (NULL);
1d14ffa9 FB	329	}
	330
	331	static SW *glue (audio_pcm_create_voice_pair_, TYPE) (
c0fe3827	332	const char *sw_name,
1ea879e5	333	struct audsettings *as
1d14ffa9 FB	334	)
	335	{
	336	SW *sw;
	337	HW *hw;
1ea879e5	338	struct audsettings hw_as;
1d14ffa9	339
c0fe3827 FB	340	if (glue (conf.fixed_, TYPE).enabled) {
	341	hw_as = glue (conf.fixed_, TYPE).settings;
	342	}
	343	else {
	344	hw_as = *as;
1d14ffa9 FB	345	}
1d14ffa9 FB	346
c0fe3827	347	sw = audio_calloc (AUDIO_FUNC, 1, sizeof (*sw));
1d14ffa9	348	if (!sw) {
e7cad338	349	dolog ("Could not allocate soft voice `%s' (%zu bytes)\n",
c0fe3827	350	sw_name ? sw_name : "unknown", sizeof (*sw));
1d14ffa9 FB	351	goto err1;
	352	}
	353
1a7dafce	354	hw = glue (audio_pcm_hw_add_, TYPE) (&hw_as);
1d14ffa9 FB	355	if (!hw) {
	356	goto err2;
	357	}
	358
	359	glue (audio_pcm_hw_add_sw_, TYPE) (hw, sw);
	360
d929eba5	361	if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, sw_name, as)) {
1d14ffa9 FB	362	goto err3;
	363	}
	364
	365	return sw;
	366
	367	err3:
	368	glue (audio_pcm_hw_del_sw_, TYPE) (sw);
1a7dafce	369	glue (audio_pcm_hw_gc_, TYPE) (&hw);
1d14ffa9 FB	370	err2:
	371	qemu_free (sw);
	372	err1:
	373	return NULL;
	374	}
	375
1a7dafce	376	static void glue (audio_close_, TYPE) (SW *sw)
c0fe3827 FB	377	{
	378	glue (audio_pcm_sw_fini_, TYPE) (sw);
	379	glue (audio_pcm_hw_del_sw_, TYPE) (sw);
1a7dafce	380	glue (audio_pcm_hw_gc_, TYPE) (&sw->hw);
c0fe3827 FB	381	qemu_free (sw);
c0fe3827 FB	382	}
571ec3d6	383
c0fe3827	384	void glue (AUD_close_, TYPE) (QEMUSoundCard card, SW sw)
1d14ffa9 FB	385	{
1d14ffa9 FB	386	if (sw) {
1a7dafce	387	if (audio_bug (AUDIO_FUNC, !card)) {
1a7dafce	388	dolog ("card=%p\n", card);
c0fe3827 FB	389	return;
	390	}
	391
1a7dafce	392	glue (audio_close_, TYPE) (sw);
1d14ffa9 FB	393	}
	394	}
	395
	396	SW *glue (AUD_open_, TYPE) (
c0fe3827	397	QEMUSoundCard *card,
1d14ffa9 FB	398	SW *sw,
	399	const char *name,
	400	void *callback_opaque ,
cb4f03e8	401	audio_callback_fn callback_fn,
1ea879e5	402	struct audsettings *as
1d14ffa9 FB	403	)
1d14ffa9 FB	404	{
1a7dafce	405	AudioState *s = &glob_audio_state;
1d14ffa9 FB	406	#ifdef DAC
	407	int live = 0;
	408	SW *old_sw = NULL;
	409	#endif
	410
c0fe3827 FB	411	ldebug ("open %s, freq %d, nchannels %d, fmt %d\n",
	412	name, as->freq, as->nchannels, as->fmt);
	413
1a7dafce	414	if (audio_bug (AUDIO_FUNC, !card \|\| !name \|\| !callback_fn \|\| !as)) {
	415	dolog ("card=%p name=%p callback_fn=%p as=%p\n",
	416	card, name, callback_fn, as);
1d14ffa9 FB	417	goto fail;
	418	}
	419
ec36b695	420	if (audio_bug (AUDIO_FUNC, audio_validate_settings (as))) {
c0fe3827	421	audio_print_settings (as);
1d14ffa9 FB	422	goto fail;
	423	}
	424
c0fe3827 FB	425	if (audio_bug (AUDIO_FUNC, !s->drv)) {
c0fe3827 FB	426	dolog ("Can not open `%s' (no host audio driver)\n", name);
1d14ffa9 FB	427	goto fail;
	428	}
	429
c0fe3827	430	if (sw && audio_pcm_info_eq (&sw->info, as)) {
1d14ffa9 FB	431	return sw;
	432	}
	433
	434	#ifdef DAC
c0fe3827	435	if (conf.plive && sw && (!sw->active && !sw->empty)) {
1d14ffa9 FB	436	live = sw->total_hw_samples_mixed;
	437
	438	#ifdef DEBUG_PLIVE
c0fe3827	439	dolog ("Replacing voice %s with %d live samples\n", SW_NAME (sw), live);
1d14ffa9	440	dolog ("Old %s freq %d, bits %d, channels %d\n",
c0fe3827	441	SW_NAME (sw), sw->info.freq, sw->info.bits, sw->info.nchannels);
1d14ffa9	442	dolog ("New %s freq %d, bits %d, channels %d\n",
c0fe3827	443	name,
a244eb74 JQ	444	as->freq,
	445	(as->fmt == AUD_FMT_S16 \|\| as->fmt == AUD_FMT_U16) ? 16 : 8,
	446	as->nchannels);
1d14ffa9 FB	447	#endif
	448
	449	if (live) {
	450	old_sw = sw;
	451	old_sw->callback.fn = NULL;
	452	sw = NULL;
	453	}
	454	}
	455	#endif
	456
c0fe3827 FB	457	if (!glue (conf.fixed_, TYPE).enabled && sw) {
c0fe3827 FB	458	glue (AUD_close_, TYPE) (card, sw);
1d14ffa9 FB	459	sw = NULL;
	460	}
	461
	462	if (sw) {
	463	HW *hw = sw->hw;
	464
	465	if (!hw) {
c0fe3827 FB	466	dolog ("Internal logic error voice `%s' has no hardware store\n",
c0fe3827 FB	467	SW_NAME (sw));
1d14ffa9 FB	468	goto fail;
	469	}
	470
571ec3d6	471	glue (audio_pcm_sw_fini_, TYPE) (sw);
d929eba5	472	if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, name, as)) {
1d14ffa9 FB	473	goto fail;
	474	}
	475	}
	476	else {
1a7dafce	477	sw = glue (audio_pcm_create_voice_pair_, TYPE) (name, as);
1d14ffa9	478	if (!sw) {
c0fe3827	479	dolog ("Failed to create voice `%s'\n", name);
571ec3d6	480	return NULL;
1d14ffa9 FB	481	}
	482	}
	483
7cbb28ed	484	sw->card = card;
	485	sw->vol = nominal_volume;
	486	sw->callback.fn = callback_fn;
	487	sw->callback.opaque = callback_opaque;
1d14ffa9 FB	488
1d14ffa9 FB	489	#ifdef DAC
7cbb28ed	490	if (live) {
	491	int mixed =
	492	(live << old_sw->info.shift)
	493	* old_sw->info.bytes_per_second
	494	/ sw->info.bytes_per_second;
1d14ffa9 FB	495
1d14ffa9 FB	496	#ifdef DEBUG_PLIVE
7cbb28ed	497	dolog ("Silence will be mixed %d\n", mixed);
1d14ffa9	498	#endif
7cbb28ed	499	sw->total_hw_samples_mixed += mixed;
7cbb28ed	500	}
1d14ffa9 FB	501	#endif
	502
	503	#ifdef DEBUG_AUDIO
7cbb28ed	504	dolog ("%s\n", name);
	505	audio_pcm_print_info ("hw", &sw->hw->info);
	506	audio_pcm_print_info ("sw", &sw->info);
1d14ffa9	507	#endif
1d14ffa9 FB	508
	509	return sw;
	510
	511	fail:
c0fe3827	512	glue (AUD_close_, TYPE) (card, sw);
1d14ffa9 FB	513	return NULL;
	514	}
	515
	516	int glue (AUD_is_active_, TYPE) (SW *sw)
	517	{
	518	return sw ? sw->active : 0;
	519	}
	520
	521	void glue (AUD_init_time_stamp_, TYPE) (SW sw, QEMUAudioTimeStamp ts)
	522	{
	523	if (!sw) {
	524	return;
	525	}
	526
	527	ts->old_ts = sw->hw->ts_helper;
	528	}
	529
c0fe3827	530	uint64_t glue (AUD_get_elapsed_usec_, TYPE) (SW sw, QEMUAudioTimeStamp ts)
1d14ffa9 FB	531	{
	532	uint64_t delta, cur_ts, old_ts;
	533
	534	if (!sw) {
	535	return 0;
	536	}
	537
	538	cur_ts = sw->hw->ts_helper;
	539	old_ts = ts->old_ts;
0bfcd599	540	/* dolog ("cur %" PRId64 " old %" PRId64 "\n", cur_ts, old_ts); */
1d14ffa9 FB	541
	542	if (cur_ts >= old_ts) {
	543	delta = cur_ts - old_ts;
	544	}
	545	else {
	546	delta = UINT64_MAX - old_ts + cur_ts;
	547	}
	548
	549	if (!delta) {
	550	return 0;
	551	}
	552
4f4cc0ef	553	return muldiv64 (delta, sw->hw->info.freq, 1000000);
1d14ffa9 FB	554	}
	555
	556	#undef TYPE
	557	#undef HW
	558	#undef SW
571ec3d6 FB	559	#undef HWBUF
571ec3d6 FB	560	#undef NAME