feeder_chain.c File Reference

#include <dev/sound/pcm/sound.h>
#include "feeder_if.h"

Include dependency graph for feeder_chain.c:

Go to the source code of this file.

Data Structures
struct	feeder_chain_state
struct	feeder_chain_desc

Macros
#define	FEEDER_CHAIN_LEAN   0
#define	FEEDER_CHAIN_16   1
#define	FEEDER_CHAIN_32   2
#define	FEEDER_CHAIN_MULTI   3
#define	FEEDER_CHAIN_FULLMULTI   4
#define	FEEDER_CHAIN_LAST   5
#define	FEEDER_CHAIN_DEFAULT   FEEDER_CHAIN_LEAN
#define	FEEDER_BW(c, t)   ((c)->t.matrix->channels * (c)->t.rate)
#define	FEEDRATE_UP(c)   ((c)->target.rate > (c)->current.rate)
#define	FEEDRATE_DOWN(c)   ((c)->target.rate < (c)->current.rate)
#define	FEEDRATE_REQUIRED(c)   (FEEDRATE_UP(c) || FEEDRATE_DOWN(c))
#define	FEEDMATRIX_UP(c)
#define	FEEDMATRIX_DOWN(c)
#define	FEEDMATRIX_REQUIRED(c)
#define	FEEDFORMAT_REQUIRED(c)
#define	FEEDVOLUME_REQUIRED(c)   ((c)->use_volume != 0)
#define	FEEDEQ_VALIDRATE(c, t)   (feeder_eq_validrate((c)->t.rate) != 0)
#define	FEEDEQ_ECONOMY(c)   (FEEDER_BW(c, current) < FEEDER_BW(c, target))
#define	FEEDEQ_REQUIRED(c)
#define	FEEDFORMAT_NE_REQUIRED(c)
#define	VCHAN_PASSTHROUGH(c)
#define	FEEDER_BUILD(t)

Functions
	SND_DECLARE_FILE ("$FreeBSD$")
static int	feeder_build_format (struct pcm_channel *c, struct feeder_chain_desc *cdesc)
static int	feeder_build_formatne (struct pcm_channel *c, struct feeder_chain_desc *cdesc)
static int	feeder_build_rate (struct pcm_channel *c, struct feeder_chain_desc *cdesc)
static int	feeder_build_matrix (struct pcm_channel *c, struct feeder_chain_desc *cdesc)
static int	feeder_build_volume (struct pcm_channel *c, struct feeder_chain_desc *cdesc)
static int	feeder_build_eq (struct pcm_channel *c, struct feeder_chain_desc *cdesc)
static int	feeder_build_root (struct pcm_channel *c, struct feeder_chain_desc *cdesc)
static int	feeder_build_mixer (struct pcm_channel *c, struct feeder_chain_desc *cdesc)
static void	feeder_default_matrix (struct pcmchan_matrix *m, uint32_t fmt, int id)
int	feeder_chain (struct pcm_channel *c)

Variables
static uint32_t	feeder_chain_formats_lean []
static uint32_t	feeder_chain_formats_16 []
static uint32_t	feeder_chain_formats_32 []
static uint32_t	feeder_chain_formats_multi []
static uint32_t	feeder_chain_formats_fullmulti []
static uint32_t *	feeder_chain_formats [FEEDER_CHAIN_LAST]
static int	feeder_chain_mode = FEEDER_CHAIN_DEFAULT

Macro Definition Documentation

FEEDEQ_ECONOMY

#define FEEDEQ_ECONOMY

(

c

)

(FEEDER_BW(c, current) < FEEDER_BW(c, target))

Definition at line 550 of file feeder_chain.c.

FEEDEQ_REQUIRED

#define FEEDEQ_REQUIRED

(

c

)

Value:

                                 ((c)->use_eq != 0 &&                   \
                                 FEEDEQ_VALIDRATE(c, current))

Definition at line 551 of file feeder_chain.c.

FEEDEQ_VALIDRATE

#define FEEDEQ_VALIDRATE	(		c,
			t
	)		(feeder_eq_validrate((c)->t.rate) != 0)

Definition at line 549 of file feeder_chain.c.

FEEDER_BUILD

#define FEEDER_BUILD

(

t

)

Value:

        do {                                            \
        ret = feeder_build_##t(c, &cdesc);                              \
        if (ret != 0)                                                   \
                return (ret);                                           \
        } while (0)

FEEDER_BW

#define FEEDER_BW	(		c,
			t
	)		((c)->t.matrix->channels * (c)->t.rate)

Definition at line 531 of file feeder_chain.c.

FEEDER_CHAIN_16

#define FEEDER_CHAIN_16   1

Definition at line 65 of file feeder_chain.c.

FEEDER_CHAIN_32

#define FEEDER_CHAIN_32   2

Definition at line 66 of file feeder_chain.c.

FEEDER_CHAIN_DEFAULT

#define FEEDER_CHAIN_DEFAULT   FEEDER_CHAIN_LEAN

Definition at line 76 of file feeder_chain.c.

FEEDER_CHAIN_FULLMULTI

#define FEEDER_CHAIN_FULLMULTI   4

Definition at line 68 of file feeder_chain.c.

FEEDER_CHAIN_LAST

#define FEEDER_CHAIN_LAST   5

Definition at line 69 of file feeder_chain.c.

FEEDER_CHAIN_LEAN

#define FEEDER_CHAIN_LEAN   0

Definition at line 64 of file feeder_chain.c.

FEEDER_CHAIN_MULTI

#define FEEDER_CHAIN_MULTI   3

Definition at line 67 of file feeder_chain.c.

FEEDFORMAT_NE_REQUIRED

#define FEEDFORMAT_NE_REQUIRED

(

c

)

Value:

        ((c)->afmt_ne != AFMT_S32_NE &&                                 \
        (((c)->mode == FEEDER_CHAIN_16 &&                               \
        AFMT_ENCODING((c)->current.afmt) != AFMT_S16_NE) ||             \
        ((c)->mode == FEEDER_CHAIN_32 &&                                \
        AFMT_ENCODING((c)->current.afmt) != AFMT_S32_NE) ||             \
        (c)->mode == FEEDER_CHAIN_FULLMULTI ||                          \
        ((c)->mode == FEEDER_CHAIN_MULTI &&                             \
        ((c)->current.afmt & AFMT_8BIT)) ||                             \
        ((c)->mode == FEEDER_CHAIN_LEAN &&                              \
        !((c)->current.afmt & (AFMT_S16_NE | AFMT_S32_NE)))))

Definition at line 554 of file feeder_chain.c.

FEEDFORMAT_REQUIRED

#define FEEDFORMAT_REQUIRED

(

c

)

Value:

                                 (AFMT_ENCODING((c)->current.afmt) !=   \
                                 AFMT_ENCODING((c)->target.afmt))

Definition at line 544 of file feeder_chain.c.

FEEDMATRIX_DOWN

#define FEEDMATRIX_DOWN

(

c

)

Value:

                                 ((c)->target.matrix->channels <                \
                                 (c)->current.matrix->channels)

Definition at line 539 of file feeder_chain.c.

FEEDMATRIX_REQUIRED

#define FEEDMATRIX_REQUIRED

(

c

)

Value:

                                 (FEEDMATRIX_UP(c) ||                   \
                                 FEEDMATRIX_DOWN(c) || (c)->use_matrix != 0)

Definition at line 541 of file feeder_chain.c.

FEEDMATRIX_UP

#define FEEDMATRIX_UP

(

c

)

Value:

                                 ((c)->target.matrix->channels >                \
                                 (c)->current.matrix->channels)

Definition at line 537 of file feeder_chain.c.

FEEDRATE_DOWN

#define FEEDRATE_DOWN

(

c

)

((c)->target.rate < (c)->current.rate)

Definition at line 534 of file feeder_chain.c.

FEEDRATE_REQUIRED

#define FEEDRATE_REQUIRED

(

c

)

(FEEDRATE_UP(c) || FEEDRATE_DOWN(c))

Definition at line 535 of file feeder_chain.c.

FEEDRATE_UP

#define FEEDRATE_UP

(

c

)

((c)->target.rate > (c)->current.rate)

Definition at line 533 of file feeder_chain.c.

FEEDVOLUME_REQUIRED

#define FEEDVOLUME_REQUIRED

(

c

)

((c)->use_volume != 0)

Definition at line 547 of file feeder_chain.c.

VCHAN_PASSTHROUGH

#define VCHAN_PASSTHROUGH

(

c

)

Value:

                                 (((c)->flags & (CHN_F_VIRTUAL |                \
                                 CHN_F_PASSTHROUGH)) ==                 \
                                 (CHN_F_VIRTUAL | CHN_F_PASSTHROUGH))

Function Documentation

feeder_build_eq()

static int feeder_build_eq ( struct pcm_channel *  c, struct feeder_chain_desc *  cdesc  )

static

Definition at line 411 of file feeder_chain.c.

References feeder_chain_state::afmt, c, chn_addfeeder(), feeder_chain_desc::current, desc, feeder_chain_desc::desc, pcm_channel::dev, FEEDEQ_RATE, pcm_channel::feeder, feeder_build_formatne(), FEEDER_EQ, feeder_getclass(), pcm_channel::feederflags, feeder_chain_state::rate, and feeder_chain_desc::use_eq.

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feeder_build_format()

static int feeder_build_format ( struct pcm_channel *  c, struct feeder_chain_desc *  cdesc  )

static

Definition at line 140 of file feeder_chain.c.

References feeder_chain_state::afmt, c, chn_addfeeder(), feeder_chain_desc::current, desc, feeder_chain_desc::desc, pcm_channel::dev, FEEDER_FORMAT, feeder_getclass(), pcm_channel::feederflags, and feeder_chain_desc::target.

Referenced by feeder_build_formatne().

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feeder_build_formatne()

static int feeder_build_formatne ( struct pcm_channel *  c, struct feeder_chain_desc *  cdesc  )

static

Definition at line 181 of file feeder_chain.c.

References feeder_chain_state::afmt, AFMT_ENCODING, feeder_chain_desc::afmt_ne, c, pcmchan_matrix::channels, feeder_chain_desc::current, pcmchan_matrix::ext, feeder_build_format(), feeder_chain_state::matrix, SND_FORMAT, and feeder_chain_desc::target.

Referenced by feeder_build_eq(), feeder_build_matrix(), feeder_build_rate(), and feeder_build_volume().

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feeder_build_matrix()

static int feeder_build_matrix ( struct pcm_channel *  c, struct feeder_chain_desc *  cdesc  )

static

Definition at line 286 of file feeder_chain.c.

References feeder_chain_state::afmt, c, pcmchan_matrix::channels, chn_addfeeder(), feeder_chain_desc::current, desc, feeder_chain_desc::desc, pcm_channel::dev, pcmchan_matrix::ext, pcm_channel::feeder, feeder_build_formatne(), feeder_getclass(), FEEDER_MATRIX, feeder_matrix_setup(), pcm_channel::feederflags, feeder_chain_state::matrix, SND_FORMAT, feeder_chain_desc::target, and feeder_chain_desc::use_matrix.

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feeder_build_mixer()

static int feeder_build_mixer ( struct pcm_channel *  c, struct feeder_chain_desc *  cdesc  )

static

Definition at line 496 of file feeder_chain.c.

References feeder_chain_state::afmt, c, chn_addfeeder(), feeder_chain_desc::current, desc, feeder_chain_desc::desc, pcm_channel::dev, feeder_getclass(), FEEDER_MIXER, and pcm_channel::feederflags.

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feeder_build_rate()

static int feeder_build_rate ( struct pcm_channel *  c, struct feeder_chain_desc *  cdesc  )

static

Definition at line 208 of file feeder_chain.c.

References feeder_chain_state::afmt, c, chn_addfeeder(), feeder_chain_desc::current, desc, feeder_chain_desc::desc, pcm_channel::dev, feeder_chain_desc::dummy, pcm_channel::feeder, feeder_build_formatne(), feeder_getclass(), FEEDER_RATE, pcm_channel::feederflags, FEEDRATE_DST, FEEDRATE_QUALITY, FEEDRATE_SRC, feeder_chain_state::rate, and feeder_chain_desc::target.

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feeder_build_root()

static int feeder_build_root ( struct pcm_channel *  c, struct feeder_chain_desc *  cdesc  )

static

Definition at line 465 of file feeder_chain.c.

References feeder_chain_state::afmt, c, chn_addfeeder(), feeder_chain_desc::current, pcm_feeder::desc, pcm_channel::dev, pcm_channel::feeder, feeder_getclass(), FEEDER_ROOT, pcm_channel::feederflags, pcm_feederdesc::in, and pcm_feederdesc::out.

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feeder_build_volume()

static int feeder_build_volume ( struct pcm_channel *  c, struct feeder_chain_desc *  cdesc  )

static

Definition at line 343 of file feeder_chain.c.

References feeder_chain_state::afmt, c, chn_addfeeder(), feeder_chain_desc::current, desc, feeder_chain_desc::desc, pcm_channel::dev, feeder_chain_desc::dummy, pcm_channel::feeder, feeder_build_formatne(), feeder_getclass(), FEEDER_VOLUME, feeder_volume_apply_matrix(), pcm_channel::feederflags, FEEDVOLUME_BYPASS, FEEDVOLUME_STATE, feeder_chain_state::matrix, and feeder_chain_desc::use_volume.

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feeder_chain()

int feeder_chain

(

struct pcm_channel *

c

)

Definition at line 581 of file feeder_chain.c.

References feeder_chain_state::afmt, AFMT_24BIT, AFMT_32BIT, AFMT_CHANNEL, AFMT_CONVERTIBLE, AFMT_ENCODING, AFMT_EXTCHANNEL, feeder_chain_desc::afmt_ne, AFMT_PASSTHROUGH, pcm_channel::bufhard, pcm_channel::bufsoft, c, pcmchan_caps::caps, pcmchan_matrix::channels, CHN_BITPERFECT, CHN_DIRSTR, CHN_F_HAS_VCHAN, CHN_F_VIRTUAL, chn_getcaps(), CHN_LOCKASSERT, chn_removefeeder(), chn_syncstate(), feeder_chain_desc::current, pcm_channel::dev, pcm_channel::devinfo, pcm_channel::direction, feeder_chain_desc::dummy, feeder_chain_desc::expensive, pcmchan_matrix::ext, FEEDEQ_ECONOMY, FEEDEQ_REQUIRED, FEEDEQ_VALIDRATE, pcm_channel::feeder, FEEDER_BUILD, FEEDER_CHAIN_16, FEEDER_CHAIN_32, FEEDER_CHAIN_DEFAULT, feeder_chain_formats, FEEDER_CHAIN_FULLMULTI, FEEDER_CHAIN_LEAN, feeder_chain_mode, FEEDER_CHAIN_MULTI, feeder_default_matrix(), feeder_matrix_compare(), feeder_matrix_format_map(), pcm_channel::feederflags, FEEDFORMAT_NE_REQUIRED, FEEDFORMAT_REQUIRED, FEEDMATRIX_DOWN, FEEDMATRIX_REQUIRED, FEEDMATRIX_UP, FEEDRATE_DOWN, FEEDRATE_REQUIRED, FEEDRATE_UP, FEEDVOLUME_REQUIRED, pcm_channel::flags, snddev_info::flags, pcmchan_caps::fmtlist, format, pcm_channel::format, pcmchan_matrix::id, pcm_channel::matrix, feeder_chain_state::matrix, pcm_channel::matrix_scratch, pcm_channel::methods, mixer, feeder_chain_desc::mode, feeder_chain_desc::origin, pcm_channel::parentchannel, pcm_channel::parentsnddev, PCMDIR_PLAY, PCMDIR_REC, rate, feeder_chain_state::rate, SD_F_EQ, SD_F_EQ_PC, SD_F_SOFTPCMVOL, SD_F_VPC, SND_CHN_MATRIX_PCMCHANNEL, SND_CHN_MATRIX_UNKNOWN, snd_fmtbest(), snd_fmtvalid(), SND_FORMAT, sndbuf_getspd(), sndbuf_setfmt(), sndbuf_setspd(), pcm_channel::speed, feeder_chain_desc::target, feeder_chain_desc::use_eq, feeder_chain_desc::use_matrix, feeder_chain_desc::use_volume, and VCHAN_PASSTHROUGH.

Referenced by chn_setparam(), and vchan_sync().

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feeder_default_matrix()

static void feeder_default_matrix ( struct pcmchan_matrix *  m, uint32_t  fmt, int  id  )

static

Definition at line 567 of file feeder_chain.c.

References AFMT_CHANNEL, AFMT_EXTCHANNEL, pcmchan_matrix::channels, pcmchan_matrix::ext, fmt, id, pcmchan_matrix::id, m, pcmchan_matrix::offset, and SND_CHN_T_MAX.

Referenced by feeder_chain().

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SND_DECLARE_FILE()

SND_DECLARE_FILE

(

"$FreeBSD$"

)

Variable Documentation

feeder_chain_formats

uint32_t* feeder_chain_formats[FEEDER_CHAIN_LAST]

static

Initial value:

= {
        [FEEDER_CHAIN_LEAN]      = feeder_chain_formats_lean,
        [FEEDER_CHAIN_16]        = feeder_chain_formats_16,
        [FEEDER_CHAIN_32]        = feeder_chain_formats_32,
        [FEEDER_CHAIN_MULTI]     = feeder_chain_formats_multi,
        [FEEDER_CHAIN_FULLMULTI] = feeder_chain_formats_fullmulti
}

Definition at line 119 of file feeder_chain.c.

Referenced by feeder_chain().

feeder_chain_formats_16

uint32_t feeder_chain_formats_16[]

static

Initial value:

= {
        AFMT_S16_NE,
        0
}

Definition at line 91 of file feeder_chain.c.

feeder_chain_formats_32

uint32_t feeder_chain_formats_32[]

static

Initial value:

= {
        AFMT_S32_NE,
        0
}

Definition at line 97 of file feeder_chain.c.

feeder_chain_formats_fullmulti

uint32_t feeder_chain_formats_fullmulti[]

static

Initial value:

= {
        AFMT_S8, AFMT_U8,
        AFMT_S16_LE, AFMT_S16_BE, AFMT_U16_LE, AFMT_U16_BE,
        AFMT_S24_LE, AFMT_S24_BE, AFMT_U24_LE, AFMT_U24_BE,
        AFMT_S32_LE, AFMT_S32_BE, AFMT_U32_LE, AFMT_U32_BE,
        0
}

Definition at line 111 of file feeder_chain.c.

feeder_chain_formats_lean

uint32_t feeder_chain_formats_lean[]

static

Initial value:

= {
        AFMT_S16_NE, AFMT_S32_NE,
        0
}

Definition at line 85 of file feeder_chain.c.

feeder_chain_formats_multi

uint32_t feeder_chain_formats_multi[]

static

Initial value:

= {
        AFMT_S16_LE, AFMT_S16_BE, AFMT_U16_LE, AFMT_U16_BE,
        AFMT_S24_LE, AFMT_S24_BE, AFMT_U24_LE, AFMT_U24_BE,
        AFMT_S32_LE, AFMT_S32_BE, AFMT_U32_LE, AFMT_U32_BE,
        0
}

Definition at line 103 of file feeder_chain.c.

feeder_chain_mode

int feeder_chain_mode = FEEDER_CHAIN_DEFAULT

static

Definition at line 127 of file feeder_chain.c.

Referenced by feeder_chain().