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Merged pcmplug branch.

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This commit is contained in:
Jaroslav Kysela 2000-09-24 09:57:26 +00:00
parent 40d1ee071d
commit 6962a9d6ce
61 changed files with 7172 additions and 6743 deletions
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156
src/pcm/pcm_local.h
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@ -20,43 +20,49 @@
*/
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/uio.h>
#include <errno.h>
#include "asoundlib.h"
struct snd_pcm_ops {
int (*close)(snd_pcm_t *pcm);
int (*nonblock)(snd_pcm_t *pcm, int nonblock);
int (*info)(snd_pcm_t *pcm, snd_pcm_info_t *info);
int (*params_info)(snd_pcm_t *pcm, snd_pcm_params_info_t *info);
int (*params)(snd_pcm_t *pcm, snd_pcm_params_t *params);
int (*setup)(snd_pcm_t *pcm, snd_pcm_setup_t *setup);
void (*dump)(snd_pcm_t *pcm, FILE *fp);
};
struct snd_pcm_fast_ops {
int (*nonblock)(snd_pcm_t *pcm, int nonblock);
int (*status)(snd_pcm_t *pcm, snd_pcm_status_t *status);
int (*channel_info)(snd_pcm_t *pcm, snd_pcm_channel_info_t *info);
int (*channel_params)(snd_pcm_t *pcm, snd_pcm_channel_params_t *params);
int (*channel_setup)(snd_pcm_t *pcm, snd_pcm_channel_setup_t *setup);
void (*dump)(snd_pcm_t *pcm, FILE *fp);
int (*mmap_status)(snd_pcm_t *pcm);
int (*mmap_control)(snd_pcm_t *pcm);
int (*mmap_data)(snd_pcm_t *pcm);
int (*munmap_status)(snd_pcm_t *pcm);
int (*munmap_control)(snd_pcm_t *pcm);
int (*munmap_data)(snd_pcm_t *pcm);
};
struct snd_pcm_fast_ops {
int (*status)(snd_pcm_t *pcm, snd_pcm_status_t *status);
int (*prepare)(snd_pcm_t *pcm);
int (*go)(snd_pcm_t *pcm);
int (*drain)(snd_pcm_t *pcm);
int (*start)(snd_pcm_t *pcm);
int (*stop)(snd_pcm_t *pcm);
int (*flush)(snd_pcm_t *pcm);
int (*pause)(snd_pcm_t *pcm, int enable);
int (*state)(snd_pcm_t *pcm);
ssize_t (*hw_ptr)(snd_pcm_t *pcm, int update);
int (*delay)(snd_pcm_t *pcm, ssize_t *delayp);
ssize_t (*appl_ptr)(snd_pcm_t *pcm, off_t offset);
ssize_t (*write)(snd_pcm_t *pcm, snd_timestamp_t *tstamp, const void *buffer, size_t size);
ssize_t (*writev)(snd_pcm_t *pcm, snd_timestamp_t *tstamp, const struct iovec *vector, unsigned long count);
ssize_t (*read)(snd_pcm_t *pcm, snd_timestamp_t *tstamp, void *buffer, size_t size);
ssize_t (*readv)(snd_pcm_t *pcm, snd_timestamp_t *tstamp, const struct iovec *vector, unsigned long count);
int (*file_descriptor)(snd_pcm_t *pcm);
int (*channels_mask)(snd_pcm_t *pcm, bitset_t *client_vmask);
int (*mmap_status)(snd_pcm_t *pcm, snd_pcm_mmap_status_t **status);
int (*mmap_control)(snd_pcm_t *pcm, snd_pcm_mmap_control_t **control);
int (*mmap_data)(snd_pcm_t *pcm, void **buffer, size_t bsize);
int (*munmap_status)(snd_pcm_t *pcm, snd_pcm_mmap_status_t *status);
int (*munmap_control)(snd_pcm_t *pcm, snd_pcm_mmap_control_t *control);
int (*munmap_data)(snd_pcm_t *pcm, void *buffer, size_t bsize);
ssize_t (*writei)(snd_pcm_t *pcm, const void *buffer, size_t size);
ssize_t (*writen)(snd_pcm_t *pcm, void **bufs, size_t size);
ssize_t (*readi)(snd_pcm_t *pcm, void *buffer, size_t size);
ssize_t (*readn)(snd_pcm_t *pcm, void **bufs, size_t size);
int (*poll_descriptor)(snd_pcm_t *pcm);
int (*channels_mask)(snd_pcm_t *pcm, bitset_t *cmask);
ssize_t (*avail_update)(snd_pcm_t *pcm);
ssize_t (*mmap_forward)(snd_pcm_t *pcm, size_t size);
};
struct snd_pcm {
@ -65,13 +71,12 @@ struct snd_pcm {
int mode;
int valid_setup;
snd_pcm_setup_t setup;
snd_pcm_channel_area_t *channels;
size_t bits_per_sample;
size_t bits_per_frame;
snd_pcm_mmap_status_t *mmap_status;
snd_pcm_mmap_control_t *mmap_control;
char *mmap_data;
enum { _INTERLEAVED, _NONINTERLEAVED, _COMPLEX } mmap_type;
void *mmap_data;
snd_pcm_channel_area_t *mmap_areas;
struct snd_pcm_ops *ops;
struct snd_pcm_fast_ops *fast_ops;
snd_pcm_t *op_arg;
@ -79,74 +84,67 @@ struct snd_pcm {
void *private;
};
#undef snd_pcm_plug_t
typedef struct snd_pcm_plug {
int close_slave;
snd_pcm_t *handle;
snd_pcm_t *slave;
snd_pcm_plugin_t *first;
snd_pcm_plugin_t *last;
size_t frames_alloc;
} snd_pcm_plug_t;
int snd_pcm_init(snd_pcm_t *pcm);
void snd_pcm_areas_from_buf(snd_pcm_t *pcm, snd_pcm_channel_area_t *areas, void *buf);
void snd_pcm_areas_from_bufs(snd_pcm_t *pcm, snd_pcm_channel_area_t *areas, void **bufs);
unsigned int snd_pcm_plug_formats(unsigned int slave_formats);
int snd_pcm_plug_slave_fmt(int format, snd_pcm_params_info_t *slave_info);
int snd_pcm_plug_slave_rate(unsigned int rate, snd_pcm_params_info_t *slave_info);
int snd_pcm_plug_slave_format(snd_pcm_format_t *format,
snd_pcm_info_t *slave_info,
snd_pcm_params_info_t *slave_params_info,
snd_pcm_format_t *slave_format);
int snd_pcm_plug_format_plugins(snd_pcm_plug_t *plug,
snd_pcm_format_t *format,
snd_pcm_format_t *slave_format);
int snd_pcm_mmap_status(snd_pcm_t *pcm, snd_pcm_mmap_status_t **status);
int snd_pcm_mmap_control(snd_pcm_t *pcm, snd_pcm_mmap_control_t **control);
int snd_pcm_mmap_data(snd_pcm_t *pcm, void **buffer);
int snd_pcm_munmap_status(snd_pcm_t *pcm);
int snd_pcm_munmap_control(snd_pcm_t *pcm);
int snd_pcm_munmap_data(snd_pcm_t *pcm);
int snd_pcm_mmap_ready(snd_pcm_t *pcm);
ssize_t snd_pcm_mmap_appl_ptr(snd_pcm_t *pcm, off_t offset);
void snd_pcm_mmap_appl_forward(snd_pcm_t *pcm, size_t frames);
void snd_pcm_mmap_hw_forward(snd_pcm_t *pcm, size_t frames);
size_t snd_pcm_mmap_hw_offset(snd_pcm_t *pcm);
size_t snd_pcm_mmap_avail(snd_pcm_t *pcm);
size_t snd_pcm_mmap_playback_xfer(snd_pcm_t *pcm, size_t frames);
size_t snd_pcm_mmap_capture_xfer(snd_pcm_t *pcm, size_t frames);
ssize_t snd_pcm_plug_write_transfer(snd_pcm_plug_t *plug, snd_pcm_plugin_channel_t *src_channels, size_t size);
ssize_t snd_pcm_plug_read_transfer(snd_pcm_plug_t *plug, snd_pcm_plugin_channel_t *dst_channels_final, size_t size);
ssize_t snd_pcm_plug_client_channels_iovec(snd_pcm_plug_t *plug,
const struct iovec *vector, unsigned long count,
snd_pcm_plugin_channel_t **channels);
ssize_t snd_pcm_plug_client_channels_buf(snd_pcm_plug_t *plug,
char *buf, size_t count,
snd_pcm_plugin_channel_t **channels);
typedef ssize_t (*snd_pcm_xfer_areas_func_t)(snd_pcm_t *pcm,
snd_pcm_channel_area_t *areas,
size_t offset, size_t size,
size_t *slave_sizep);
int snd_pcm_plug_playback_channels_mask(snd_pcm_plug_t *plug,
bitset_t *client_vmask);
int snd_pcm_plug_capture_channels_mask(snd_pcm_plug_t *plug,
bitset_t *client_vmask);
ssize_t snd_pcm_plugin_client_channels(snd_pcm_plugin_t *plugin,
size_t frames,
snd_pcm_plugin_channel_t **channels);
ssize_t snd_pcm_read_areas(snd_pcm_t *pcm, snd_pcm_channel_area_t *areas,
size_t offset, size_t size,
snd_pcm_xfer_areas_func_t func);
ssize_t snd_pcm_write_areas(snd_pcm_t *pcm, snd_pcm_channel_area_t *areas,
size_t offset, size_t size,
snd_pcm_xfer_areas_func_t func);
ssize_t snd_pcm_read_mmap(snd_pcm_t *pcm, size_t size);
ssize_t snd_pcm_write_mmap(snd_pcm_t *pcm, size_t size);
void *snd_pcm_plug_buf_alloc(snd_pcm_plug_t *plug, size_t size);
void snd_pcm_plug_buf_unlock(snd_pcm_plug_t *pcm, void *ptr);
#define ROUTE_PLUGIN_RESOLUTION 16
int getput_index(int format);
int conv_index(int src_format, int dst_format);
#ifdef PLUGIN_DEBUG
#define pdprintf( args... ) fprintf(stderr, "plugin: " ##args)
#else
#define pdprintf( args... ) { ; }
#endif
static inline size_t snd_pcm_mmap_playback_avail(snd_pcm_t *str)
static inline size_t snd_pcm_mmap_playback_avail(snd_pcm_t *pcm)
{
ssize_t avail;
avail = str->mmap_status->hw_ptr + str->setup.buffer_size - str->mmap_control->appl_ptr;
avail = pcm->mmap_status->hw_ptr + pcm->setup.buffer_size - pcm->mmap_control->appl_ptr;
if (avail < 0)
avail += str->setup.boundary;
avail += pcm->setup.boundary;
return avail;
}
static inline size_t snd_pcm_mmap_capture_avail(snd_pcm_t *str)
static inline size_t snd_pcm_mmap_capture_avail(snd_pcm_t *pcm)
{
ssize_t avail;
avail = str->mmap_status->hw_ptr - str->mmap_control->appl_ptr;
avail = pcm->mmap_status->hw_ptr - pcm->mmap_control->appl_ptr;
if (avail < 0)
avail += str->setup.boundary;
avail += pcm->setup.boundary;
return avail;
}
#define snd_pcm_plug_stream(plug) ((plug)->handle->stream)
static inline void *snd_pcm_channel_area_addr(snd_pcm_channel_area_t *area, size_t offset)
{
size_t bitofs = area->first + area->step * offset;
assert(bitofs % 8 == 0);
return area->addr + bitofs / 8;
}
static inline size_t snd_pcm_channel_area_step(snd_pcm_channel_area_t *area)
{
assert(area->step % 8 == 0);
return area->step / 8;
}