[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) {
        g_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) {
        g_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) {
        g_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 = g_strdup (name);
    err = glue (audio_pcm_sw_alloc_resources_, TYPE) (sw);
    if (err) {
        g_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) {
        g_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);
        g_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;
    hw->ctl_caps = drv->ctl_caps;

    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:
    g_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:
    g_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);
    g_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

    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;
    }

    ldebug ("open %s, freq %d, nchannels %d, fmt %d\n",
            name, as->freq, as->nchannels, as->fmt);

    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) {
7267c094	75	g_free (HWBUF);
571ec3d6 FB	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) {
7267c094	96	g_free (sw->buf);
571ec3d6 FB	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) {
7267c094	126	g_free (sw->buf);
571ec3d6 FB	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	162
7267c094	163	sw->name = g_strdup (name);
571ec3d6 FB	164	err = glue (audio_pcm_sw_alloc_resources_, TYPE) (sw);
571ec3d6 FB	165	if (err) {
7267c094	166	g_free (sw->name);
571ec3d6 FB	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) {
7267c094	176	g_free (sw->name);
1d14ffa9 FB	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);
7267c094	204	g_free (hw);
c0fe3827	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;
c01b2456 MAL	266	hw->ctl_caps = drv->ctl_caps;
c01b2456 MAL	267
72cf2d4f	268	QLIST_INIT (&hw->sw_head);
8ead62cf	269	#ifdef DAC
72cf2d4f	270	QLIST_INIT (&hw->cap_head);
8ead62cf	271	#endif
571ec3d6 FB	272	if (glue (hw->pcm_ops->init_, TYPE) (hw, as)) {
	273	goto err0;
	274	}
	275
	276	if (audio_bug (AUDIO_FUNC, hw->samples <= 0)) {
	277	dolog ("hw->samples=%d\n", hw->samples);
	278	goto err1;
	279	}
	280
	281	#ifdef DAC
	282	hw->clip = mixeng_clip
	283	#else
	284	hw->conv = mixeng_conv
	285	#endif
	286	[hw->info.nchannels == 2]
	287	[hw->info.sign]
d929eba5	288	[hw->info.swap_endianness]
f941aa25	289	[audio_bits_to_index (hw->info.bits)];
571ec3d6 FB	290
	291	if (glue (audio_pcm_hw_alloc_resources_, TYPE) (hw)) {
	292	goto err1;
	293	}
	294
72cf2d4f	295	QLIST_INSERT_HEAD (&s->glue (hw_head_, TYPE), hw, entries);
571ec3d6	296	glue (s->nb_hw_voices_, TYPE) -= 1;
8ead62cf	297	#ifdef DAC
1a7dafce	298	audio_attach_capture (hw);
8ead62cf	299	#endif
571ec3d6 FB	300	return hw;
	301
	302	err1:
	303	glue (hw->pcm_ops->fini_, TYPE) (hw);
	304	err0:
7267c094	305	g_free (hw);
1d14ffa9 FB	306	return NULL;
	307	}
	308
1a7dafce	309	static HW glue (audio_pcm_hw_add_, TYPE) (struct audsettings as)
1d14ffa9 FB	310	{
	311	HW *hw;
	312
c0fe3827	313	if (glue (conf.fixed_, TYPE).enabled && glue (conf.fixed_, TYPE).greedy) {
1a7dafce	314	hw = glue (audio_pcm_hw_add_new_, TYPE) (as);
1d14ffa9 FB	315	if (hw) {
	316	return hw;
	317	}
	318	}
	319
1a7dafce	320	hw = glue (audio_pcm_hw_find_specific_, TYPE) (NULL, as);
1d14ffa9 FB	321	if (hw) {
	322	return hw;
	323	}
	324
1a7dafce	325	hw = glue (audio_pcm_hw_add_new_, TYPE) (as);
1d14ffa9 FB	326	if (hw) {
	327	return hw;
	328	}
	329
1a7dafce	330	return glue (audio_pcm_hw_find_any_, TYPE) (NULL);
1d14ffa9 FB	331	}
	332
	333	static SW *glue (audio_pcm_create_voice_pair_, TYPE) (
c0fe3827	334	const char *sw_name,
1ea879e5	335	struct audsettings *as
1d14ffa9 FB	336	)
	337	{
	338	SW *sw;
	339	HW *hw;
1ea879e5	340	struct audsettings hw_as;
1d14ffa9	341
c0fe3827 FB	342	if (glue (conf.fixed_, TYPE).enabled) {
	343	hw_as = glue (conf.fixed_, TYPE).settings;
	344	}
	345	else {
	346	hw_as = *as;
1d14ffa9 FB	347	}
1d14ffa9 FB	348
c0fe3827	349	sw = audio_calloc (AUDIO_FUNC, 1, sizeof (*sw));
1d14ffa9	350	if (!sw) {
e7cad338	351	dolog ("Could not allocate soft voice `%s' (%zu bytes)\n",
c0fe3827	352	sw_name ? sw_name : "unknown", sizeof (*sw));
1d14ffa9 FB	353	goto err1;
	354	}
	355
1a7dafce	356	hw = glue (audio_pcm_hw_add_, TYPE) (&hw_as);
1d14ffa9 FB	357	if (!hw) {
	358	goto err2;
	359	}
	360
	361	glue (audio_pcm_hw_add_sw_, TYPE) (hw, sw);
	362
d929eba5	363	if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, sw_name, as)) {
1d14ffa9 FB	364	goto err3;
	365	}
	366
	367	return sw;
	368
	369	err3:
	370	glue (audio_pcm_hw_del_sw_, TYPE) (sw);
1a7dafce	371	glue (audio_pcm_hw_gc_, TYPE) (&hw);
1d14ffa9	372	err2:
7267c094	373	g_free (sw);
1d14ffa9 FB	374	err1:
	375	return NULL;
	376	}
	377
1a7dafce	378	static void glue (audio_close_, TYPE) (SW *sw)
c0fe3827 FB	379	{
	380	glue (audio_pcm_sw_fini_, TYPE) (sw);
	381	glue (audio_pcm_hw_del_sw_, TYPE) (sw);
1a7dafce	382	glue (audio_pcm_hw_gc_, TYPE) (&sw->hw);
7267c094	383	g_free (sw);
c0fe3827	384	}
571ec3d6	385
c0fe3827	386	void glue (AUD_close_, TYPE) (QEMUSoundCard card, SW sw)
1d14ffa9 FB	387	{
1d14ffa9 FB	388	if (sw) {
1a7dafce	389	if (audio_bug (AUDIO_FUNC, !card)) {
1a7dafce	390	dolog ("card=%p\n", card);
c0fe3827 FB	391	return;
	392	}
	393
1a7dafce	394	glue (audio_close_, TYPE) (sw);
1d14ffa9 FB	395	}
	396	}
	397
	398	SW *glue (AUD_open_, TYPE) (
c0fe3827	399	QEMUSoundCard *card,
1d14ffa9 FB	400	SW *sw,
	401	const char *name,
	402	void *callback_opaque ,
cb4f03e8	403	audio_callback_fn callback_fn,
1ea879e5	404	struct audsettings *as
1d14ffa9 FB	405	)
1d14ffa9 FB	406	{
1a7dafce	407	AudioState *s = &glob_audio_state;
1d14ffa9 FB	408	#ifdef DAC
	409	int live = 0;
	410	SW *old_sw = NULL;
	411	#endif
	412
1a7dafce	413	if (audio_bug (AUDIO_FUNC, !card \|\| !name \|\| !callback_fn \|\| !as)) {
	414	dolog ("card=%p name=%p callback_fn=%p as=%p\n",
	415	card, name, callback_fn, as);
1d14ffa9 FB	416	goto fail;
	417	}
	418
93b65997 SW	419	ldebug ("open %s, freq %d, nchannels %d, fmt %d\n",
	420	name, as->freq, as->nchannels, as->fmt);
	421
ec36b695	422	if (audio_bug (AUDIO_FUNC, audio_validate_settings (as))) {
c0fe3827	423	audio_print_settings (as);
1d14ffa9 FB	424	goto fail;
	425	}
	426
c0fe3827 FB	427	if (audio_bug (AUDIO_FUNC, !s->drv)) {
c0fe3827 FB	428	dolog ("Can not open `%s' (no host audio driver)\n", name);
1d14ffa9 FB	429	goto fail;
	430	}
	431
c0fe3827	432	if (sw && audio_pcm_info_eq (&sw->info, as)) {
1d14ffa9 FB	433	return sw;
	434	}
	435
	436	#ifdef DAC
c0fe3827	437	if (conf.plive && sw && (!sw->active && !sw->empty)) {
1d14ffa9 FB	438	live = sw->total_hw_samples_mixed;
	439
	440	#ifdef DEBUG_PLIVE
c0fe3827	441	dolog ("Replacing voice %s with %d live samples\n", SW_NAME (sw), live);
1d14ffa9	442	dolog ("Old %s freq %d, bits %d, channels %d\n",
c0fe3827	443	SW_NAME (sw), sw->info.freq, sw->info.bits, sw->info.nchannels);
1d14ffa9	444	dolog ("New %s freq %d, bits %d, channels %d\n",
c0fe3827	445	name,
a244eb74 JQ	446	as->freq,
	447	(as->fmt == AUD_FMT_S16 \|\| as->fmt == AUD_FMT_U16) ? 16 : 8,
	448	as->nchannels);
1d14ffa9 FB	449	#endif
	450
	451	if (live) {
	452	old_sw = sw;
	453	old_sw->callback.fn = NULL;
	454	sw = NULL;
	455	}
	456	}
	457	#endif
	458
c0fe3827 FB	459	if (!glue (conf.fixed_, TYPE).enabled && sw) {
c0fe3827 FB	460	glue (AUD_close_, TYPE) (card, sw);
1d14ffa9 FB	461	sw = NULL;
	462	}
	463
	464	if (sw) {
	465	HW *hw = sw->hw;
	466
	467	if (!hw) {
c0fe3827 FB	468	dolog ("Internal logic error voice `%s' has no hardware store\n",
c0fe3827 FB	469	SW_NAME (sw));
1d14ffa9 FB	470	goto fail;
	471	}
	472
571ec3d6	473	glue (audio_pcm_sw_fini_, TYPE) (sw);
d929eba5	474	if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, name, as)) {
1d14ffa9 FB	475	goto fail;
	476	}
	477	}
	478	else {
1a7dafce	479	sw = glue (audio_pcm_create_voice_pair_, TYPE) (name, as);
1d14ffa9	480	if (!sw) {
c0fe3827	481	dolog ("Failed to create voice `%s'\n", name);
571ec3d6	482	return NULL;
1d14ffa9 FB	483	}
	484	}
	485
7cbb28ed	486	sw->card = card;
	487	sw->vol = nominal_volume;
	488	sw->callback.fn = callback_fn;
	489	sw->callback.opaque = callback_opaque;
1d14ffa9 FB	490
1d14ffa9 FB	491	#ifdef DAC
7cbb28ed	492	if (live) {
	493	int mixed =
	494	(live << old_sw->info.shift)
	495	* old_sw->info.bytes_per_second
	496	/ sw->info.bytes_per_second;
1d14ffa9 FB	497
1d14ffa9 FB	498	#ifdef DEBUG_PLIVE
7cbb28ed	499	dolog ("Silence will be mixed %d\n", mixed);
1d14ffa9	500	#endif
7cbb28ed	501	sw->total_hw_samples_mixed += mixed;
7cbb28ed	502	}
1d14ffa9 FB	503	#endif
	504
	505	#ifdef DEBUG_AUDIO
7cbb28ed	506	dolog ("%s\n", name);
	507	audio_pcm_print_info ("hw", &sw->hw->info);
	508	audio_pcm_print_info ("sw", &sw->info);
1d14ffa9	509	#endif
1d14ffa9 FB	510
	511	return sw;
	512
	513	fail:
c0fe3827	514	glue (AUD_close_, TYPE) (card, sw);
1d14ffa9 FB	515	return NULL;
	516	}
	517
	518	int glue (AUD_is_active_, TYPE) (SW *sw)
	519	{
	520	return sw ? sw->active : 0;
	521	}
	522
	523	void glue (AUD_init_time_stamp_, TYPE) (SW sw, QEMUAudioTimeStamp ts)
	524	{
	525	if (!sw) {
	526	return;
	527	}
	528
	529	ts->old_ts = sw->hw->ts_helper;
	530	}
	531
c0fe3827	532	uint64_t glue (AUD_get_elapsed_usec_, TYPE) (SW sw, QEMUAudioTimeStamp ts)
1d14ffa9 FB	533	{
	534	uint64_t delta, cur_ts, old_ts;
	535
	536	if (!sw) {
	537	return 0;
	538	}
	539
	540	cur_ts = sw->hw->ts_helper;
	541	old_ts = ts->old_ts;
0bfcd599	542	/* dolog ("cur %" PRId64 " old %" PRId64 "\n", cur_ts, old_ts); */
1d14ffa9 FB	543
	544	if (cur_ts >= old_ts) {
	545	delta = cur_ts - old_ts;
	546	}
	547	else {
	548	delta = UINT64_MAX - old_ts + cur_ts;
	549	}
	550
	551	if (!delta) {
	552	return 0;
	553	}
	554
4f4cc0ef	555	return muldiv64 (delta, sw->hw->info.freq, 1000000);
1d14ffa9 FB	556	}
	557
	558	#undef TYPE
	559	#undef HW
	560	#undef SW
571ec3d6 FB	561	#undef HWBUF
571ec3d6 FB	562	#undef NAME