diff options
Diffstat (limited to 'qemu/audio/spiceaudio.c')
| -rw-r--r-- | qemu/audio/spiceaudio.c | 412 |
1 files changed, 0 insertions, 412 deletions
diff --git a/qemu/audio/spiceaudio.c b/qemu/audio/spiceaudio.c deleted file mode 100644 index dea71d37a..000000000 --- a/qemu/audio/spiceaudio.c +++ /dev/null @@ -1,412 +0,0 @@ -/* - * Copyright (C) 2010 Red Hat, Inc. - * - * maintained by Gerd Hoffmann <kraxel@redhat.com> - * - * 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 or - * (at your option) version 3 of the License. - * - * 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, see <http://www.gnu.org/licenses/>. - */ - -#include "qemu/osdep.h" -#include "hw/hw.h" -#include "qemu/error-report.h" -#include "qemu/timer.h" -#include "ui/qemu-spice.h" - -#define AUDIO_CAP "spice" -#include "audio.h" -#include "audio_int.h" - -#if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3 -#define LINE_OUT_SAMPLES (480 * 4) -#else -#define LINE_OUT_SAMPLES (256 * 4) -#endif - -#if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3 -#define LINE_IN_SAMPLES (480 * 4) -#else -#define LINE_IN_SAMPLES (256 * 4) -#endif - -typedef struct SpiceRateCtl { - int64_t start_ticks; - int64_t bytes_sent; -} SpiceRateCtl; - -typedef struct SpiceVoiceOut { - HWVoiceOut hw; - SpicePlaybackInstance sin; - SpiceRateCtl rate; - int active; - uint32_t *frame; - uint32_t *fpos; - uint32_t fsize; -} SpiceVoiceOut; - -typedef struct SpiceVoiceIn { - HWVoiceIn hw; - SpiceRecordInstance sin; - SpiceRateCtl rate; - int active; - uint32_t samples[LINE_IN_SAMPLES]; -} SpiceVoiceIn; - -static const SpicePlaybackInterface playback_sif = { - .base.type = SPICE_INTERFACE_PLAYBACK, - .base.description = "playback", - .base.major_version = SPICE_INTERFACE_PLAYBACK_MAJOR, - .base.minor_version = SPICE_INTERFACE_PLAYBACK_MINOR, -}; - -static const SpiceRecordInterface record_sif = { - .base.type = SPICE_INTERFACE_RECORD, - .base.description = "record", - .base.major_version = SPICE_INTERFACE_RECORD_MAJOR, - .base.minor_version = SPICE_INTERFACE_RECORD_MINOR, -}; - -static void *spice_audio_init (void) -{ - if (!using_spice) { - return NULL; - } - return &spice_audio_init; -} - -static void spice_audio_fini (void *opaque) -{ - /* nothing */ -} - -static void rate_start (SpiceRateCtl *rate) -{ - memset (rate, 0, sizeof (*rate)); - rate->start_ticks = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); -} - -static int rate_get_samples (struct audio_pcm_info *info, SpiceRateCtl *rate) -{ - int64_t now; - int64_t ticks; - int64_t bytes; - int64_t samples; - - now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); - ticks = now - rate->start_ticks; - bytes = muldiv64(ticks, info->bytes_per_second, NANOSECONDS_PER_SECOND); - samples = (bytes - rate->bytes_sent) >> info->shift; - if (samples < 0 || samples > 65536) { - error_report("Resetting rate control (%" PRId64 " samples)", samples); - rate_start(rate); - samples = 0; - } - rate->bytes_sent += samples << info->shift; - return samples; -} - -/* playback */ - -static int line_out_init(HWVoiceOut *hw, struct audsettings *as, - void *drv_opaque) -{ - SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw); - struct audsettings settings; - -#if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3 - settings.freq = spice_server_get_best_playback_rate(NULL); -#else - settings.freq = SPICE_INTERFACE_PLAYBACK_FREQ; -#endif - settings.nchannels = SPICE_INTERFACE_PLAYBACK_CHAN; - settings.fmt = AUD_FMT_S16; - settings.endianness = AUDIO_HOST_ENDIANNESS; - - audio_pcm_init_info (&hw->info, &settings); - hw->samples = LINE_OUT_SAMPLES; - out->active = 0; - - out->sin.base.sif = &playback_sif.base; - qemu_spice_add_interface (&out->sin.base); -#if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3 - spice_server_set_playback_rate(&out->sin, settings.freq); -#endif - return 0; -} - -static void line_out_fini (HWVoiceOut *hw) -{ - SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw); - - spice_server_remove_interface (&out->sin.base); -} - -static int line_out_run (HWVoiceOut *hw, int live) -{ - SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw); - int rpos, decr; - int samples; - - if (!live) { - return 0; - } - - decr = rate_get_samples (&hw->info, &out->rate); - decr = audio_MIN (live, decr); - - samples = decr; - rpos = hw->rpos; - while (samples) { - int left_till_end_samples = hw->samples - rpos; - int len = audio_MIN (samples, left_till_end_samples); - - if (!out->frame) { - spice_server_playback_get_buffer (&out->sin, &out->frame, &out->fsize); - out->fpos = out->frame; - } - if (out->frame) { - len = audio_MIN (len, out->fsize); - hw->clip (out->fpos, hw->mix_buf + rpos, len); - out->fsize -= len; - out->fpos += len; - if (out->fsize == 0) { - spice_server_playback_put_samples (&out->sin, out->frame); - out->frame = out->fpos = NULL; - } - } - rpos = (rpos + len) % hw->samples; - samples -= len; - } - hw->rpos = rpos; - return decr; -} - -static int line_out_write (SWVoiceOut *sw, void *buf, int len) -{ - return audio_pcm_sw_write (sw, buf, len); -} - -static int line_out_ctl (HWVoiceOut *hw, int cmd, ...) -{ - SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw); - - switch (cmd) { - case VOICE_ENABLE: - if (out->active) { - break; - } - out->active = 1; - rate_start (&out->rate); - spice_server_playback_start (&out->sin); - break; - case VOICE_DISABLE: - if (!out->active) { - break; - } - out->active = 0; - if (out->frame) { - memset (out->fpos, 0, out->fsize << 2); - spice_server_playback_put_samples (&out->sin, out->frame); - out->frame = out->fpos = NULL; - } - spice_server_playback_stop (&out->sin); - break; - case VOICE_VOLUME: - { -#if ((SPICE_INTERFACE_PLAYBACK_MAJOR >= 1) && (SPICE_INTERFACE_PLAYBACK_MINOR >= 2)) - SWVoiceOut *sw; - va_list ap; - uint16_t vol[2]; - - va_start (ap, cmd); - sw = va_arg (ap, SWVoiceOut *); - va_end (ap); - - vol[0] = sw->vol.l / ((1ULL << 16) + 1); - vol[1] = sw->vol.r / ((1ULL << 16) + 1); - spice_server_playback_set_volume (&out->sin, 2, vol); - spice_server_playback_set_mute (&out->sin, sw->vol.mute); -#endif - break; - } - } - - return 0; -} - -/* record */ - -static int line_in_init(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque) -{ - SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw); - struct audsettings settings; - -#if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3 - settings.freq = spice_server_get_best_record_rate(NULL); -#else - settings.freq = SPICE_INTERFACE_RECORD_FREQ; -#endif - settings.nchannels = SPICE_INTERFACE_RECORD_CHAN; - settings.fmt = AUD_FMT_S16; - settings.endianness = AUDIO_HOST_ENDIANNESS; - - audio_pcm_init_info (&hw->info, &settings); - hw->samples = LINE_IN_SAMPLES; - in->active = 0; - - in->sin.base.sif = &record_sif.base; - qemu_spice_add_interface (&in->sin.base); -#if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3 - spice_server_set_record_rate(&in->sin, settings.freq); -#endif - return 0; -} - -static void line_in_fini (HWVoiceIn *hw) -{ - SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw); - - spice_server_remove_interface (&in->sin.base); -} - -static int line_in_run (HWVoiceIn *hw) -{ - SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw); - int num_samples; - int ready; - int len[2]; - uint64_t delta_samp; - const uint32_t *samples; - - if (!(num_samples = hw->samples - audio_pcm_hw_get_live_in (hw))) { - return 0; - } - - delta_samp = rate_get_samples (&hw->info, &in->rate); - num_samples = audio_MIN (num_samples, delta_samp); - - ready = spice_server_record_get_samples (&in->sin, in->samples, num_samples); - samples = in->samples; - if (ready == 0) { - static const uint32_t silence[LINE_IN_SAMPLES]; - samples = silence; - ready = LINE_IN_SAMPLES; - } - - num_samples = audio_MIN (ready, num_samples); - - if (hw->wpos + num_samples > hw->samples) { - len[0] = hw->samples - hw->wpos; - len[1] = num_samples - len[0]; - } else { - len[0] = num_samples; - len[1] = 0; - } - - hw->conv (hw->conv_buf + hw->wpos, samples, len[0]); - - if (len[1]) { - hw->conv (hw->conv_buf, samples + len[0], len[1]); - } - - hw->wpos = (hw->wpos + num_samples) % hw->samples; - - return num_samples; -} - -static int line_in_read (SWVoiceIn *sw, void *buf, int size) -{ - return audio_pcm_sw_read (sw, buf, size); -} - -static int line_in_ctl (HWVoiceIn *hw, int cmd, ...) -{ - SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw); - - switch (cmd) { - case VOICE_ENABLE: - if (in->active) { - break; - } - in->active = 1; - rate_start (&in->rate); - spice_server_record_start (&in->sin); - break; - case VOICE_DISABLE: - if (!in->active) { - break; - } - in->active = 0; - spice_server_record_stop (&in->sin); - break; - case VOICE_VOLUME: - { -#if ((SPICE_INTERFACE_RECORD_MAJOR >= 2) && (SPICE_INTERFACE_RECORD_MINOR >= 2)) - SWVoiceIn *sw; - va_list ap; - uint16_t vol[2]; - - va_start (ap, cmd); - sw = va_arg (ap, SWVoiceIn *); - va_end (ap); - - vol[0] = sw->vol.l / ((1ULL << 16) + 1); - vol[1] = sw->vol.r / ((1ULL << 16) + 1); - spice_server_record_set_volume (&in->sin, 2, vol); - spice_server_record_set_mute (&in->sin, sw->vol.mute); -#endif - break; - } - } - - return 0; -} - -static struct audio_option audio_options[] = { - { /* end of list */ }, -}; - -static struct audio_pcm_ops audio_callbacks = { - .init_out = line_out_init, - .fini_out = line_out_fini, - .run_out = line_out_run, - .write = line_out_write, - .ctl_out = line_out_ctl, - - .init_in = line_in_init, - .fini_in = line_in_fini, - .run_in = line_in_run, - .read = line_in_read, - .ctl_in = line_in_ctl, -}; - -struct audio_driver spice_audio_driver = { - .name = "spice", - .descr = "spice audio driver", - .options = audio_options, - .init = spice_audio_init, - .fini = spice_audio_fini, - .pcm_ops = &audio_callbacks, - .max_voices_out = 1, - .max_voices_in = 1, - .voice_size_out = sizeof (SpiceVoiceOut), - .voice_size_in = sizeof (SpiceVoiceIn), -#if ((SPICE_INTERFACE_PLAYBACK_MAJOR >= 1) && (SPICE_INTERFACE_PLAYBACK_MINOR >= 2)) - .ctl_caps = VOICE_VOLUME_CAP -#endif -}; - -void qemu_spice_audio_init (void) -{ - spice_audio_driver.can_be_default = 1; -} |