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

Include dependency graph for feeder_mixer.c:

Go to the source code of this file.

Data Structures
struct	feed_mixer_info

Macros
#define	SND_USE_FXDIV

#define	SND_FEEDER_MULTIFORMAT 1

#define	FEEDMIXER_DECLARE(SIGN, BIT, ENDIAN)

#define	FEEDMIXER_ENTRY(SIGN, BIT, ENDIAN)

#define	FEEDMIXER_TAB_SIZE

#define	FEEDMIXER_DATA(i, c)

#define	FEEDMIXER_INFOIDX(d) ((uint32_t)((uintptr_t)(d) >> 7) & 0x1f)

#define	FEEDMIXER_CHANNELS(d) ((uint32_t)((uintptr_t)(d)) & 0x7f)

Typedefs
typedef void(*	feed_mixer_t) (uint8_t , uint8_t , uint32_t)

Functions
	SND_DECLARE_FILE ("$FreeBSD$")

static int	feed_mixer_init (struct pcm_feeder *f)

static int	feed_mixer_set (struct pcm_feeder *f, int what, int value)

static __inline int	feed_mixer_rec (struct pcm_channel *c)

static int	feed_mixer_feed (struct pcm_feeder f, struct pcm_channel c, uint8_t b, uint32_t count, void source)

	FEEDER_DECLARE (feeder_mixer, NULL)

Variables
static struct feed_mixer_info	feed_mixer_info_tab []

static struct pcm_feederdesc	feeder_mixer_desc []

static kobj_method_t	feeder_mixer_methods []

Macro Definition Documentation

◆ FEEDMIXER_CHANNELS

#define FEEDMIXER_CHANNELS ( d ) ((uint32_t)((uintptr_t)(d)) & 0x7f)

Definition at line 139 of file feeder_mixer.c.

◆ FEEDMIXER_DATA

#define FEEDMIXER_DATA	(	i,
		c
	)

Value:

                                 ((void *)                              \
                                 ((uintptr_t)((((i) & 0x1f) << 7) |     \
                                 ((c) & 0x7f))))

Definition at line 135 of file feeder_mixer.c.

◆ FEEDMIXER_DECLARE

#define FEEDMIXER_DECLARE	(	SIGN,
		BIT,
		ENDIAN
	)

Value:

static void                                                             \
feed_mixer_##SIGN##BIT##ENDIAN(uint8_t *src, uint8_t *dst,              \
    uint32_t count)                                                     \
{                                                                       \
        intpcm##BIT##_t z;                                              \
        intpcm_t x, y;                                                  \
                                                                        \
        src += count;                                                   \
        dst += count;                                                   \
                                                                        \
        do {                                                            \
                src -= PCM_##BIT##_BPS;                                 \
                dst -= PCM_##BIT##_BPS;                                 \
                count -= PCM_##BIT##_BPS;                               \
                x = PCM_READ_##SIGN##BIT##_##ENDIAN(src);               \
                y = PCM_READ_##SIGN##BIT##_##ENDIAN(dst);               \
                z = INTPCM##BIT##_T(x) + y;                             \
                x = PCM_CLAMP_##SIGN##BIT(z);                           \
                _PCM_WRITE_##SIGN##BIT##_##ENDIAN(dst, x);              \
        } while (count != 0);                                           \
}

Definition at line 49 of file feeder_mixer.c.

◆ FEEDMIXER_ENTRY

#define FEEDMIXER_ENTRY	(	SIGN,
		BIT,
		ENDIAN
	)

Value:

        {                                                               \
                AFMT_##SIGN##BIT##_##ENDIAN, PCM_##BIT##_BPS,           \
                feed_mixer_##SIGN##BIT##ENDIAN                          \
        }

Definition at line 99 of file feeder_mixer.c.

◆ FEEDMIXER_INFOIDX

#define FEEDMIXER_INFOIDX ( d ) ((uint32_t)((uintptr_t)(d) >> 7) & 0x1f)

Definition at line 138 of file feeder_mixer.c.

◆ FEEDMIXER_TAB_SIZE

#define FEEDMIXER_TAB_SIZE

Value:

                                 ((int32_t)                             \
                                 (sizeof(feed_mixer_info_tab) /         \
                                  sizeof(feed_mixer_info_tab[0])))

Definition at line 131 of file feeder_mixer.c.

◆ SND_FEEDER_MULTIFORMAT

#define SND_FEEDER_MULTIFORMAT 1

Definition at line 45 of file feeder_mixer.c.

◆ SND_USE_FXDIV

#define SND_USE_FXDIV

Definition at line 38 of file feeder_mixer.c.

Typedef Documentation

◆ feed_mixer_t

typedef void(* feed_mixer_t) (uint8_t *, uint8_t *, uint32_t)

Definition at line 47 of file feeder_mixer.c.

Function Documentation

◆ feed_mixer_feed()

static int feed_mixer_feed	(	struct pcm_feeder *	f,
		struct pcm_channel *	c,
		uint8_t *	b,
		uint32_t	count,
		void *	source
	)

static

Definition at line 282 of file feeder_mixer.c.

References AFMT_PASSTHROUGH, b, feed_mixer_info::bps, pcm_channel::bufsoft, c, pcm_channel::children, CHN_F_CLOSING, CHN_F_DIRTY, CHN_F_EXCLUSIVE, CHN_F_MMAP, CHN_FOREACH, CHN_LOCK, CHN_STOPPED, CHN_UNLOCK, count, pcm_feeder::data, pcm_feeder::desc, pcm_channel::direction, feed_mixer_info_tab, feed_mixer_rec(), pcm_channel::feedcount, pcm_channel::feeder, FEEDMIXER_CHANNELS, FEEDMIXER_INFOIDX, pcm_channel::flags, pcm_channel::format, feed_mixer_info::mix, pcm_feederdesc::out, PCMDIR_REC, sndbuf_acquire(), sndbuf_getbuf(), sndbuf_getfree(), sndbuf_getsize(), sndbuf_zerodata(), source, src, vchan_sync(), and VCHAN_SYNC_REQUIRED.

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◆ feed_mixer_init()

static int feed_mixer_init ( struct pcm_feeder * f )

static

Definition at line 142 of file feeder_mixer.c.

References AFMT_CHANNEL, AFMT_ENCODING, pcm_feeder::data, pcm_feeder::desc, feed_mixer_info_tab, FEEDMIXER_DATA, FEEDMIXER_TAB_SIZE, feed_mixer_info::format, pcm_feederdesc::in, and pcm_feederdesc::out.

◆ feed_mixer_rec()

static __inline int feed_mixer_rec ( struct pcm_channel * c )

static

Definition at line 180 of file feeder_mixer.c.

References b, pcm_channel::bufhard, pcm_channel::bufsoft, pcm_channel::busy, c, CHN_F_DIRTY, CHN_F_MMAP, CHN_FOREACH, CHN_LOCK, CHN_STOPPED, CHN_UNLOCK, pcm_channel::feeder, pcm_channel::flags, snd_dbuf::rl, snd_dbuf::rp, sndbuf_acquire(), sndbuf_dispose(), sndbuf_getalign(), sndbuf_getfree(), sndbuf_getready(), sndbuf_getsize(), pcm_feeder::source, snd_dbuf::tmpbuf, vchan_sync(), VCHAN_SYNC_REQUIRED, and pcm_channel::xruns.

Referenced by feed_mixer_feed().

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◆ feed_mixer_set()

static int feed_mixer_set	(	struct pcm_feeder *	f,
		int	what,
		int	value
	)

static

Definition at line 162 of file feeder_mixer.c.

References pcm_feeder::data, FEEDMIXER_CHANNELS, FEEDMIXER_DATA, FEEDMIXER_INFOIDX, SND_CHN_MAX, value, and what.

◆ FEEDER_DECLARE()

FEEDER_DECLARE	(	feeder_mixer	,
		NULL
	)

◆ SND_DECLARE_FILE()

SND_DECLARE_FILE ( "$FreeBSD$" )

Variable Documentation

◆ feed_mixer_info_tab

struct feed_mixer_info feed_mixer_info_tab[]

static

Initial value:

= {
        FEEDMIXER_ENTRY(S,  8, NE),
 
        FEEDMIXER_ENTRY(S, 16, LE),
        FEEDMIXER_ENTRY(S, 32, LE),
 
 
        FEEDMIXER_ENTRY(S, 16, BE),
        FEEDMIXER_ENTRY(S, 32, BE),
 
 
        FEEDMIXER_ENTRY(S, 24, LE),
        FEEDMIXER_ENTRY(S, 24, BE),
        FEEDMIXER_ENTRY(U,  8, NE),
        FEEDMIXER_ENTRY(U, 16, LE),
        FEEDMIXER_ENTRY(U, 24, LE),
        FEEDMIXER_ENTRY(U, 32, LE),
        FEEDMIXER_ENTRY(U, 16, BE),
        FEEDMIXER_ENTRY(U, 24, BE),
        FEEDMIXER_ENTRY(U, 32, BE),
 
        {    AFMT_AC3, PCM_16_BPS, NULL },
        { AFMT_MU_LAW,  PCM_8_BPS, feed_mixer_U8NE },   
        {  AFMT_A_LAW,  PCM_8_BPS, feed_mixer_U8NE }    
}

Definition at line 105 of file feeder_mixer.c.

Referenced by feed_mixer_feed(), and feed_mixer_init().

◆ feeder_mixer_desc

struct pcm_feederdesc feeder_mixer_desc[]

static

Initial value:

= {
        { FEEDER_MIXER, 0, 0, 0, 0 },
        { 0, 0, 0, 0, 0 }
}

Definition at line 392 of file feeder_mixer.c.

◆ feeder_mixer_methods

kobj_method_t feeder_mixer_methods[]

static

Initial value:

= {
        KOBJMETHOD(feeder_init,         feed_mixer_init),
        KOBJMETHOD(feeder_set,          feed_mixer_set),
        KOBJMETHOD(feeder_feed,         feed_mixer_feed),
        KOBJMETHOD_END
}

Definition at line 397 of file feeder_mixer.c.

Data Structures

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ FEEDMIXER_CHANNELS

◆ FEEDMIXER_DATA

◆ FEEDMIXER_DECLARE

◆ FEEDMIXER_ENTRY

◆ FEEDMIXER_INFOIDX

◆ FEEDMIXER_TAB_SIZE

◆ SND_FEEDER_MULTIFORMAT

◆ SND_USE_FXDIV

Typedef Documentation

◆ feed_mixer_t

Function Documentation

◆ feed_mixer_feed()

◆ feed_mixer_init()

◆ feed_mixer_rec()

◆ feed_mixer_set()

◆ FEEDER_DECLARE()

◆ SND_DECLARE_FILE()

Variable Documentation

◆ feed_mixer_info_tab

◆ feeder_mixer_desc

◆ feeder_mixer_methods