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https://github.com/alsa-project/alsa-lib.git
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New hw_params implementation
This commit is contained in:
Abramo Bagnara
parent
2fe1219099
commit
8dd927e97f
28 changed files with 3550 additions and 1899 deletions
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@ -26,6 +26,7 @@
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#include <errno.h>
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#include <math.h>
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#include "pcm_local.h"
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#include "interval.h"
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typedef struct {
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snd_pcm_t *pcm;
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@ -90,83 +91,109 @@ static int snd_pcm_multi_info(snd_pcm_t *pcm, snd_pcm_info_t *info)
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return 0;
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}
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static int snd_pcm_multi_hw_info(snd_pcm_t *pcm, snd_pcm_hw_info_t *info)
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static int snd_pcm_multi_hw_refine(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
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{
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snd_pcm_multi_t *multi = pcm->private;
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unsigned int k;
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snd_pcm_hw_info_t i;
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unsigned int access_mask, saccess_mask;
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snd_pcm_hw_params_t sparams;
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int changed = 0;
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int err = 0;
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if (info->channels_min < multi->channels_count)
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info->channels_min = multi->channels_count;
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if (info->channels_max > multi->channels_count)
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info->channels_max = multi->channels_count;
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if (info->channels_min > info->channels_max)
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return -EINVAL;
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i = *info;
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saccess_mask = ~0;
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int err;
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const mask_t *access_mask = snd_pcm_hw_params_value_mask(params, SND_PCM_HW_PARAM_ACCESS);
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mask_t *saccess_mask = alloca(mask_sizeof());
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if (mask_test(access_mask, SND_PCM_ACCESS_RW_INTERLEAVED) ||
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mask_test(access_mask, SND_PCM_ACCESS_RW_NONINTERLEAVED))
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mask_load(saccess_mask, SND_PCM_ACCBIT_MMAP);
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else {
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mask_none(saccess_mask);
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if (mask_test(access_mask, SND_PCM_ACCESS_MMAP_INTERLEAVED) &&
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multi->slaves_count == 1)
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mask_set(saccess_mask, SND_PCM_ACCESS_MMAP_INTERLEAVED);
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if (mask_test(access_mask, SND_PCM_ACCESS_MMAP_NONINTERLEAVED))
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mask_set(saccess_mask, SND_PCM_ACCESS_MMAP_NONINTERLEAVED);
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if (mask_test(access_mask, SND_PCM_ACCESS_MMAP_COMPLEX)) {
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mask_set(saccess_mask, SND_PCM_ACCESS_MMAP_COMPLEX);
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if (multi->slaves_count > 1)
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mask_set(saccess_mask, SND_PCM_ACCESS_MMAP_INTERLEAVED);
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}
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}
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err = _snd_pcm_hw_params_set(params, 1, SND_PCM_HW_PARAM_CHANNELS,
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multi->channels_count);
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if (err < 0)
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return err;
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changed = 0;
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do {
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for (k = 0; k < multi->slaves_count; ++k) {
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snd_pcm_t *slave = multi->slaves[k].pcm;
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snd_pcm_hw_info_t sinfo = i;
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sinfo.access_mask = SND_PCM_ACCBIT_MMAP;
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sinfo.channels_min = sinfo.channels_max = multi->slaves[k].channels_count;
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err = snd_pcm_hw_info(slave, &sinfo);
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if (err < 0) {
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sinfo.access_mask = info->access_mask;
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sinfo.channels_min = multi->channels_count;
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sinfo.channels_max = multi->channels_count;
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*info = sinfo;
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_snd_pcm_hw_params_any(&sparams);
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_snd_pcm_hw_params_mask(&sparams, 0,
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SND_PCM_HW_PARAM_ACCESS,
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saccess_mask);
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_snd_pcm_hw_params_set(&sparams, 0,
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SND_PCM_HW_PARAM_CHANNELS,
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multi->slaves[k].channels_count);
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err = snd_pcm_hw_refine2(params, &sparams,
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snd_pcm_hw_refine, slave,
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SND_PCM_HW_PARBIT_FORMAT |
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SND_PCM_HW_PARBIT_SUBFORMAT |
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SND_PCM_HW_PARBIT_RATE |
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SND_PCM_HW_PARBIT_FRAGMENT_SIZE |
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SND_PCM_HW_PARBIT_FRAGMENT_LENGTH |
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SND_PCM_HW_PARBIT_BUFFER_SIZE |
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SND_PCM_HW_PARBIT_BUFFER_LENGTH |
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SND_PCM_HW_PARBIT_FRAGMENTS);
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if (err < 0)
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return err;
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}
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if (i.format_mask != sinfo.format_mask ||
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i.subformat_mask != sinfo.subformat_mask ||
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i.rate_min != sinfo.rate_min ||
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i.rate_max != sinfo.rate_max ||
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i.fragment_length_min != sinfo.fragment_length_min ||
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i.fragment_length_max != sinfo.fragment_length_max ||
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i.fragments_min != sinfo.fragments_min ||
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i.fragments_max != sinfo.fragments_max ||
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i.buffer_length_min != sinfo.buffer_length_min ||
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i.buffer_length_max != sinfo.buffer_length_max)
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if (params->hw_cmask)
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changed++;
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saccess_mask &= sinfo.access_mask;
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i = sinfo;
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}
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} while (changed && multi->slaves_count > 1);
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access_mask = info->access_mask;
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*info = i;
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info->access_mask = access_mask;
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if (!(saccess_mask & SND_PCM_ACCBIT_MMAP_INTERLEAVED) ||
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multi->slaves_count > 1)
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info->access_mask &= ~SND_PCM_ACCBIT_MMAP_INTERLEAVED;
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if (!(saccess_mask & SND_PCM_ACCBIT_MMAP_NONINTERLEAVED))
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info->access_mask &= ~SND_PCM_ACCBIT_MMAP_NONINTERLEAVED;
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if (!info->access_mask)
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return -EINVAL;
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info->channels_min = info->channels_max = multi->channels_count;
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return 0;
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}
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static int snd_pcm_multi_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
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{
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snd_pcm_multi_t *multi = pcm->private;
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unsigned int i;
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unsigned int k;
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int err;
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for (i = 0; i < multi->slaves_count; ++i) {
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snd_pcm_t *slave = multi->slaves[i].pcm;
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snd_pcm_hw_info_t sinfo;
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snd_pcm_hw_params_t sparams;
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snd_pcm_hw_params_to_info(params, &sinfo);
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sinfo.access_mask = SND_PCM_ACCBIT_MMAP;
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sinfo.channels_min = sinfo.channels_max = multi->slaves[i].channels_count;
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err = snd_pcm_hw_params_info(slave, &sparams, &sinfo);
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if (err < 0) {
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params->fail_mask = sparams.fail_mask;
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return err;
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const mask_t *access_mask = snd_pcm_hw_params_value_mask(params, SND_PCM_HW_PARAM_ACCESS);
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mask_t *saccess_mask = alloca(mask_sizeof());
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if (mask_test(access_mask, SND_PCM_ACCESS_RW_INTERLEAVED) ||
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mask_test(access_mask, SND_PCM_ACCESS_RW_NONINTERLEAVED))
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mask_load(saccess_mask, SND_PCM_ACCBIT_MMAP);
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else {
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mask_none(saccess_mask);
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if (mask_test(access_mask, SND_PCM_ACCESS_MMAP_INTERLEAVED) &&
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multi->slaves_count == 1)
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mask_set(saccess_mask, SND_PCM_ACCESS_MMAP_INTERLEAVED);
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if (mask_test(access_mask, SND_PCM_ACCESS_MMAP_NONINTERLEAVED))
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mask_set(saccess_mask, SND_PCM_ACCESS_MMAP_NONINTERLEAVED);
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if (mask_test(access_mask, SND_PCM_ACCESS_MMAP_COMPLEX)) {
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mask_set(saccess_mask, SND_PCM_ACCESS_MMAP_COMPLEX);
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if (multi->slaves_count > 1)
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mask_set(saccess_mask, SND_PCM_ACCESS_MMAP_INTERLEAVED);
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}
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}
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for (k = 0; k < multi->slaves_count; ++k) {
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snd_pcm_t *slave = multi->slaves[k].pcm;
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snd_pcm_hw_params_t sparams;
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_snd_pcm_hw_params_any(&sparams);
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_snd_pcm_hw_params_mask(&sparams, 0, SND_PCM_HW_PARAM_ACCESS,
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saccess_mask);
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_snd_pcm_hw_params_set(&sparams, 0, SND_PCM_HW_PARAM_CHANNELS,
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multi->slaves[k].channels_count);
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err = snd_pcm_hw_params2(params, &sparams,
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snd_pcm_hw_params, slave,
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SND_PCM_HW_PARBIT_FORMAT |
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SND_PCM_HW_PARBIT_SUBFORMAT |
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SND_PCM_HW_PARBIT_RATE |
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SND_PCM_HW_PARBIT_FRAGMENT_SIZE |
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SND_PCM_HW_PARBIT_FRAGMENT_LENGTH |
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SND_PCM_HW_PARBIT_BUFFER_SIZE |
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SND_PCM_HW_PARBIT_BUFFER_LENGTH |
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SND_PCM_HW_PARBIT_FRAGMENTS);
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if (err < 0)
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return err;
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err = snd_pcm_areas_silence(slave->running_areas, 0, slave->channels, slave->buffer_size, slave->format);
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if (err < 0)
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return err;
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@ -376,7 +403,7 @@ static void snd_pcm_multi_dump(snd_pcm_t *pcm, FILE *fp)
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snd_pcm_ops_t snd_pcm_multi_ops = {
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close: snd_pcm_multi_close,
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info: snd_pcm_multi_info,
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hw_info: snd_pcm_multi_hw_info,
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hw_refine: snd_pcm_multi_hw_refine,
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hw_params: snd_pcm_multi_hw_params,
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sw_params: snd_pcm_multi_sw_params,
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dig_info: snd_pcm_multi_dig_info,
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