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Major cleaning to hw_params mechanism for plugins

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This commit is contained in:
Abramo Bagnara 2001-01-18 18:20:31 +00:00
parent 1747dc039f
commit 3126678e72
17 changed files with 1259 additions and 1044 deletions
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127
src/pcm/pcm_shm.c
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@ -155,8 +155,61 @@ static int snd_pcm_shm_info(snd_pcm_t *pcm, snd_pcm_info_t * info)
return err;
}
static int _snd_pcm_shm_hw_refine(snd_pcm_t *pcm,
snd_pcm_hw_params_t *params)
static int snd_pcm_shm_hw_refine_cprepare(snd_pcm_t *pcm ATTRIBUTE_UNUSED, snd_pcm_hw_params_t *params ATTRIBUTE_UNUSED)
{
return 0;
}
static int snd_pcm_shm_hw_refine_sprepare(snd_pcm_t *pcm ATTRIBUTE_UNUSED, snd_pcm_hw_params_t *sparams)
{
mask_t *saccess_mask = alloca(mask_sizeof());
mask_load(saccess_mask, SND_PCM_ACCBIT_MMAP);
_snd_pcm_hw_params_any(sparams);
_snd_pcm_hw_param_mask(sparams, SND_PCM_HW_PARAM_ACCESS,
saccess_mask);
return 0;
}
static int snd_pcm_shm_hw_refine_schange(snd_pcm_t *pcm ATTRIBUTE_UNUSED, snd_pcm_hw_params_t *params,
snd_pcm_hw_params_t *sparams)
{
int err;
unsigned int links = ~SND_PCM_HW_PARBIT_ACCESS;
const mask_t *access_mask = snd_pcm_hw_param_value_mask(params, SND_PCM_HW_PARAM_ACCESS);
if (!mask_test(access_mask, SND_PCM_ACCESS_RW_INTERLEAVED) &&
!mask_test(access_mask, SND_PCM_ACCESS_RW_NONINTERLEAVED)) {
err = _snd_pcm_hw_param_mask(sparams, SND_PCM_HW_PARAM_ACCESS,
access_mask);
if (err < 0)
return err;
}
err = _snd_pcm_hw_params_refine(sparams, links, params);
if (err < 0)
return err;
return 0;
}
static int snd_pcm_shm_hw_refine_cchange(snd_pcm_t *pcm ATTRIBUTE_UNUSED, snd_pcm_hw_params_t *params,
snd_pcm_hw_params_t *sparams)
{
int err;
unsigned int links = ~SND_PCM_HW_PARBIT_ACCESS;
mask_t *access_mask = alloca(mask_sizeof());
mask_copy(access_mask, snd_pcm_hw_param_value_mask(sparams, SND_PCM_HW_PARAM_ACCESS));
mask_set(access_mask, SND_PCM_ACCESS_RW_INTERLEAVED);
mask_set(access_mask, SND_PCM_ACCESS_RW_NONINTERLEAVED);
err = _snd_pcm_hw_param_mask(sparams, SND_PCM_HW_PARAM_ACCESS,
access_mask);
if (err < 0)
return err;
err = _snd_pcm_hw_params_refine(params, links, sparams);
if (err < 0)
return err;
return 0;
}
static int snd_pcm_shm_hw_refine_slave(snd_pcm_t *pcm,
snd_pcm_hw_params_t *params)
{
snd_pcm_shm_t *shm = pcm->private;
volatile snd_pcm_shm_ctrl_t *ctrl = shm->ctrl;
@ -168,46 +221,18 @@ static int _snd_pcm_shm_hw_refine(snd_pcm_t *pcm,
return err;
}
/* Accumulate to params->cmask */
/* Reset sparams->cmask */
int snd_pcm_shm_hw_link(snd_pcm_hw_params_t *params,
snd_pcm_hw_params_t *sparams,
snd_pcm_t *slave,
unsigned long links)
{
int err1, err = 0;
err = snd_pcm_hw_params_refine(sparams, links, params);
if (err >= 0) {
unsigned int cmask = sparams->cmask;
err = _snd_pcm_shm_hw_refine(slave, sparams);
sparams->cmask |= cmask;
}
err1 = snd_pcm_hw_params_refine(params, links, sparams);
if (err1 < 0)
err = err1;
sparams->cmask = 0;
return err;
}
static int snd_pcm_shm_hw_refine(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
{
snd_pcm_hw_params_t sparams;
const mask_t *access_mask = snd_pcm_hw_param_value_mask(params, SND_PCM_HW_PARAM_ACCESS);
mask_t *saccess_mask = alloca(mask_sizeof());
mask_load(saccess_mask, SND_PCM_ACCBIT_MMAP);
if (!mask_test(access_mask, SND_PCM_ACCESS_RW_INTERLEAVED) &&
!mask_test(access_mask, SND_PCM_ACCESS_RW_NONINTERLEAVED))
mask_intersect(saccess_mask, access_mask);
_snd_pcm_hw_params_any(&sparams);
_snd_pcm_hw_param_mask(&sparams, SND_PCM_HW_PARAM_ACCESS,
saccess_mask);
return snd_pcm_hw_refine2(params, &sparams,
snd_pcm_shm_hw_link, pcm,
~SND_PCM_HW_PARBIT_ACCESS);
return snd_pcm_hw_refine_slave(pcm, params,
snd_pcm_shm_hw_refine_cprepare,
snd_pcm_shm_hw_refine_cchange,
snd_pcm_shm_hw_refine_sprepare,
snd_pcm_shm_hw_refine_schange,
snd_pcm_shm_hw_refine_slave);
}
static int _snd_pcm_shm_hw_params(snd_pcm_t *pcm,
snd_pcm_hw_params_t *params)
static int snd_pcm_shm_hw_params_slave(snd_pcm_t *pcm,
snd_pcm_hw_params_t *params)
{
snd_pcm_shm_t *shm = pcm->private;
volatile snd_pcm_shm_ctrl_t *ctrl = shm->ctrl;
@ -221,27 +246,11 @@ static int _snd_pcm_shm_hw_params(snd_pcm_t *pcm,
static int snd_pcm_shm_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t * params)
{
snd_pcm_hw_params_t sparams;
unsigned int links = ~SND_PCM_HW_PARBIT_ACCESS;
const mask_t *access_mask = snd_pcm_hw_param_value_mask(params, SND_PCM_HW_PARAM_ACCESS);
mask_t *saccess_mask = alloca(mask_sizeof());
int err;
mask_load(saccess_mask, SND_PCM_ACCBIT_MMAP);
if (!mask_test(access_mask, SND_PCM_ACCESS_RW_INTERLEAVED) &&
!mask_test(access_mask, SND_PCM_ACCESS_RW_NONINTERLEAVED))
mask_intersect(saccess_mask, access_mask);
_snd_pcm_hw_params_any(&sparams);
_snd_pcm_hw_param_mask(&sparams, SND_PCM_HW_PARAM_ACCESS,
saccess_mask);
err = snd_pcm_hw_params_refine(&sparams, links, params);
assert(err >= 0);
err = _snd_pcm_shm_hw_params(pcm, &sparams);
params->cmask = 0;
sparams.cmask = ~0U;
snd_pcm_hw_params_refine(params, links, &sparams);
if (err < 0)
return err;
return 0;
return snd_pcm_hw_params_slave(pcm, params,
snd_pcm_shm_hw_refine_cchange,
snd_pcm_shm_hw_refine_sprepare,
snd_pcm_shm_hw_refine_schange,
snd_pcm_shm_hw_params_slave);
}
static int snd_pcm_shm_sw_params(snd_pcm_t *pcm, snd_pcm_sw_params_t * params)