optimize.c File Reference

#include "mpg123lib_intern.h"
#include "debug.h"

Include dependency graph for optimize.c:

Go to the source code of this file.

Macros
#define	I_AM_OPTIMIZE
#define	cpu_flags   nothing
#define	cpu_i586(s)   1
#define	cpu_fpu(s)   1
#define	cpu_mmx(s)   1
#define	cpu_3dnow(s)   1
#define	cpu_3dnowext(s)   1
#define	cpu_sse(s)   1
#define	cpu_sse2(s)   1
#define	cpu_sse3(s)   1
#define	cpu_avx(s)   1
#define	cpu_neon(s)   1
#define	IF8(synth)   synth,
#define	IFREAL(synth)   synth,
#define	IF32(synth)   synth
#define	OUT_SYNTHS(synth_16, synth_8, synth_real, synth_32)   { synth_16, IF8(synth_8) IFREAL(synth_real) IF32(synth_32) }

Functions
static int	synth_stereo_wrap (real *bandPtr_l, real *bandPtr_r, mpg123_handle *fr)
enum optdec	defdec (void)
enum optcla	decclass (const enum optdec type)
static int	find_synth (func_synth synth, const func_synth synths[r_limit][f_limit])
static int	find_dectype (mpg123_handle *fr)
int	set_synth_functions (mpg123_handle *fr)
int	frame_cpu_opt (mpg123_handle *fr, const char *cpu)
enum optdec	dectype (const char *decoder)
void	check_decoders (void)
const char *attribute_align_arg	mpg123_current_decoder (mpg123_handle *mh)
const char attribute_align_arg **	mpg123_decoders (void)
const char attribute_align_arg **	mpg123_supported_decoders (void)

Variables
static const struct synth_s	synth_base
static const char *	mpg123_decoder_list []

Macro Definition Documentation

cpu_3dnow

#define cpu_3dnow

(

s

)

1

Definition at line 25 of file optimize.c.

cpu_3dnowext

#define cpu_3dnowext

(

s

)

1

Definition at line 26 of file optimize.c.

cpu_avx

#define cpu_avx

(

s

)

1

Definition at line 30 of file optimize.c.

cpu_flags

#define cpu_flags   nothing

Definition at line 21 of file optimize.c.

cpu_fpu

#define cpu_fpu

(

s

)

1

Definition at line 23 of file optimize.c.

cpu_i586

#define cpu_i586

(

s

)

1

Definition at line 22 of file optimize.c.

cpu_mmx

#define cpu_mmx

(

s

)

1

Definition at line 24 of file optimize.c.

cpu_neon

#define cpu_neon

(

s

)

1

Definition at line 31 of file optimize.c.

cpu_sse

#define cpu_sse

(

s

)

1

Definition at line 27 of file optimize.c.

cpu_sse2

#define cpu_sse2

(

s

)

1

Definition at line 28 of file optimize.c.

cpu_sse3

#define cpu_sse3

(

s

)

1

Definition at line 29 of file optimize.c.

I_AM_OPTIMIZE

#define I_AM_OPTIMIZE

Definition at line 11 of file optimize.c.

IF32

#define IF32

(

synth

)

synth

Definition at line 51 of file optimize.c.

IF8

#define IF8

(

synth

)

synth,

Definition at line 37 of file optimize.c.

IFREAL

#define IFREAL

(

synth

)

synth,

Definition at line 45 of file optimize.c.

OUT_SYNTHS

#define OUT_SYNTHS	(		synth_16,
			synth_8,
			synth_real,
			synth_32
	)		{ synth_16, IF8(synth_8) IFREAL(synth_real) IF32(synth_32) }

Definition at line 64 of file optimize.c.

Function Documentation

check_decoders()

void check_decoders

(

void

)

Definition at line 1084 of file optimize.c.

{
#ifndef OPT_MULTI
    /* In non-multi mode, only the full list (one entry) is used. */
    return;
#else
    const char **d = mpg123_supported_decoder_list;
#if (defined OPT_X86) || (defined OPT_X86_64) || (defined OPT_NEON) || (defined OPT_NEON64)
    getcpuflags(&cpu_flags);
#endif
#ifdef OPT_X86
    if(cpu_i586(cpu_flags))
    {
        /* not yet: if(cpu_sse2(cpu_flags)) printf(" SSE2");
        if(cpu_sse3(cpu_flags)) printf(" SSE3"); */
#ifdef OPT_SSE
        if(cpu_sse(cpu_flags)) *(d++) = dn_sse;
#endif
#ifdef OPT_SSE_VINTAGE
        if(cpu_sse(cpu_flags)) *(d++) = dn_sse_vintage;
#endif
#ifdef OPT_3DNOWEXT
        if(cpu_3dnowext(cpu_flags)) *(d++) = dn_dreidnowext;
#endif
#ifdef OPT_3DNOWEXT_VINTAGE
        if(cpu_3dnowext(cpu_flags)) *(d++) = dn_dreidnowext_vintage;
#endif
#ifdef OPT_3DNOW
        if(cpu_3dnow(cpu_flags)) *(d++) = dn_dreidnow;
#endif
#ifdef OPT_3DNOW_VINTAGE
        if(cpu_3dnow(cpu_flags)) *(d++) = dn_dreidnow_vintage;
#endif
#ifdef OPT_MMX
        if(cpu_mmx(cpu_flags)) *(d++) = dn_mmx;
#endif
#ifdef OPT_I586
        *(d++) = dn_ifuenf;
#endif
#ifdef OPT_I586_DITHER
        *(d++) = dn_ifuenf_dither;
#endif
    }
#endif
/* just assume that the i486 built is run on a i486 cpu... */
#ifdef OPT_I486
    *(d++) = dn_ivier;
#endif
#ifdef OPT_ALTIVEC
    *(d++) = dn_altivec;
#endif
/* every supported x86 can do i386, any cpu can do generic */
#ifdef OPT_I386
    *(d++) = dn_idrei;
#endif
#ifdef OPT_AVX
    if(cpu_avx(cpu_flags)) *(d++) = dn_avx;
#endif
#ifdef OPT_X86_64
    *(d++) = dn_x86_64;
#endif
#ifdef OPT_ARM
    *(d++) = dn_arm;
#endif
#ifdef OPT_NEON
    if(cpu_neon(cpu_flags)) *(d++) = dn_neon;
#endif
#ifdef OPT_NEON64
    if(cpu_neon(cpu_flags)) *(d++) = dn_neon64;
#endif
#ifdef OPT_GENERIC
    *(d++) = dn_generic;
#endif
#ifdef OPT_GENERIC_DITHER
    *(d++) = dn_generic_dither;
#endif
#endif /* ndef OPT_MULTI */
}

decclass()

enum optcla decclass

(

const enum optdec

type

)

Definition at line 141 of file optimize.c.

{
    return
    (
           type == mmx
        || type == sse
        || type == sse_vintage
        || type == dreidnowext
        || type == dreidnowext_vintage
        || type == x86_64
        || type == neon
        || type == neon64
        || type == avx
    ) ? mmxsse : normal;
}

dectype()

enum optdec dectype

(

const char *

decoder

)

Definition at line 940 of file optimize.c.

{
    enum optdec dt;
    if(   (decoder == NULL)
       || (decoder[0] == 0) )
    return autodec;
 
    for(dt=autodec; dt<nodec; ++dt)
    if(!strcasecmp(decoder, decname[dt])) return dt;
 
    return nodec; /* If we found nothing... */
}

defdec()

enum optdec defdec

(

void

)

Definition at line 139 of file optimize.c.

{ return defopt; }

find_dectype()

static int find_dectype ( mpg123_handle *  fr )

static

Definition at line 190 of file optimize.c.

{
    enum optdec type = nodec;
    /* Direct and indirect usage, 1to1 stereo decoding.
       Concentrating on the plain stereo synth should be fine, mono stuff is derived. */
    func_synth basic_synth = fr->synth;
#ifndef NO_8BIT
#ifndef NO_16BIT
    if(basic_synth == synth_1to1_8bit_wrap)
    basic_synth = fr->synths.plain[r_1to1][f_16]; /* That is what's really below the surface. */
#endif
#endif
 
    if(FALSE) ; /* Just to initialize the else if ladder. */
#ifndef NO_16BIT
#if defined(OPT_3DNOWEXT) || defined(OPT_3DNOWEXT_VINTAGE)
    else if(basic_synth == synth_1to1_3dnowext)
    {
        type = dreidnowext;
#       ifdef OPT_3DNOWEXT_VINTAGE
#       ifdef OPT_MULTI
        if(fr->cpu_opts.the_dct36 == dct36_3dnowext)
#       endif
        type = dreidnowext_vintage;
#       endif
    }
#endif
#if defined(OPT_SSE) || defined(OPT_SSE_VINTAGE)
    else if(basic_synth == synth_1to1_sse)
    {
        type = sse_or_vintage(fr);
    }
#endif
#if defined(OPT_3DNOW) || defined(OPT_3DNOW_VINTAGE)
    else if(basic_synth == synth_1to1_3dnow)
    {
        type = dreidnow;
#       ifdef OPT_3DNOW_VINTAGE
#       ifdef OPT_MULTI
        if(fr->cpu_opts.the_dct36 == dct36_3dnow)
#       endif
        type = dreidnow_vintage;
#       endif
    }
#endif
#ifdef OPT_MMX
    else if(basic_synth == synth_1to1_mmx) type = mmx;
#endif
#ifdef OPT_I586_DITHER
    else if(basic_synth == synth_1to1_i586_dither) type = ifuenf_dither;
#endif
#ifdef OPT_I586
    else if(basic_synth == synth_1to1_i586) type = ifuenf;
#endif
#ifdef OPT_ALTIVEC
    else if(basic_synth == synth_1to1_altivec) type = altivec;
#endif
#ifdef OPT_X86_64
    else if(basic_synth == synth_1to1_x86_64) type = x86_64;
#endif
#ifdef OPT_AVX
    else if(basic_synth == synth_1to1_avx) type = avx;
#endif
#ifdef OPT_ARM
    else if(basic_synth == synth_1to1_arm) type = arm;
#endif
#ifdef OPT_NEON
    else if(basic_synth == synth_1to1_neon) type = neon;
#endif
#ifdef OPT_NEON64
    else if(basic_synth == synth_1to1_neon64) type = neon64;
#endif
#ifdef OPT_GENERIC_DITHER
    else if(basic_synth == synth_1to1_dither) type = generic_dither;
#endif
#ifdef OPT_DITHER /* either i586 or generic! */
#ifndef NO_DOWNSAMPLE
    else if
    (
           basic_synth == synth_2to1_dither
        || basic_synth == synth_4to1_dither
    ) type = generic_dither;
#endif
#endif
#endif /* 16bit */
 
#ifndef NO_SYNTH32
 
#ifndef NO_REAL
#if defined(OPT_SSE) || defined(OPT_SSE_VINTAGE)
    else if(basic_synth == synth_1to1_real_sse)
    {
        type = sse_or_vintage(fr);
    }
#endif
#ifdef OPT_X86_64
    else if(basic_synth == synth_1to1_real_x86_64) type = x86_64;
#endif
#ifdef OPT_AVX
    else if(basic_synth == synth_1to1_real_avx) type = avx;
#endif
#ifdef OPT_ALTIVEC
    else if(basic_synth == synth_1to1_real_altivec) type = altivec;
#endif
#ifdef OPT_NEON
    else if(basic_synth == synth_1to1_real_neon) type = neon;
#endif
#ifdef OPT_NEON64
    else if(basic_synth == synth_1to1_real_neon64) type = neon64;
#endif
 
#endif /* real */
 
#ifndef NO_32BIT
#if defined(OPT_SSE) || defined(OPT_SSE_VINTAGE)
    else if(basic_synth == synth_1to1_s32_sse)
    {
        type = sse_or_vintage(fr);
    }
#endif
#ifdef OPT_X86_64
    else if(basic_synth == synth_1to1_s32_x86_64) type = x86_64;
#endif
#ifdef OPT_AVX
    else if(basic_synth == synth_1to1_s32_avx) type = avx;
#endif
#ifdef OPT_ALTIVEC
    else if(basic_synth == synth_1to1_s32_altivec) type = altivec;
#endif
#ifdef OPT_NEON
    else if(basic_synth == synth_1to1_s32_neon) type = neon;
#endif
#ifdef OPT_NEON64
    else if(basic_synth == synth_1to1_s32_neon64) type = neon64;
#endif
#endif /* 32bit */
 
#endif /* any 32 bit synth */
 
#ifdef OPT_X86
    else if(find_synth(basic_synth, plain_i386))
    type = idrei;
#endif
 
    else if(find_synth(basic_synth, synth_base.plain))
    type = generic;
 
 
 
#ifdef OPT_I486
    /* i486 is special ... the specific code is in use for 16bit 1to1 stereo
       otherwise we have i386 active... but still, the distinction doesn't matter*/
    type = ivier;
#endif
 
    if(type != nodec)
    {
        fr->cpu_opts.type = type;
        fr->cpu_opts.class = decclass(type);
 
        debug3("determined active decoder type %i (%s) of class %i", type, decname[type], fr->cpu_opts.class);
        return MPG123_OK;
    }
    else
    {
        if(NOQUIET) error("Unable to determine active decoder type -- this is SERIOUS b0rkage!");
 
        fr->err = MPG123_BAD_DECODER_SETUP;
        return MPG123_ERR;
    }
}

Referenced by set_synth_functions().

find_synth()

static int find_synth ( func_synth  synth, const func_synth  synths[r_limit][f_limit]  )

static

Definition at line 157 of file optimize.c.

{
    enum synth_resample ri;
    enum synth_format   fi;
    for(ri=0; ri<r_limit; ++ri)
    for(fi=0; fi<f_limit; ++fi)
    if(synth == synths[ri][fi])
    return TRUE;
 
    return FALSE;
}

Referenced by find_dectype().

frame_cpu_opt()

int frame_cpu_opt	(	mpg123_handle *	fr,
		const char *	cpu
	)

Definition at line 496 of file optimize.c.

{
    const char* chosen = ""; /* the chosen decoder opt as string */
    enum optdec want_dec = nodec;
    int done = 0;
    int auto_choose = 0;
#ifdef OPT_DITHER
    int dithered = FALSE; /* If some dithered decoder is chosen. */
#endif
 
    want_dec = dectype(cpu);
    auto_choose = want_dec == autodec;
    /* Fill whole array of synth functions with generic code first. */
    fr->synths = synth_base;
 
#ifndef OPT_MULTI
    {
        if(!auto_choose && want_dec != defopt)
        {
            if(NOQUIET) error2("you wanted decoder type %i, I only have %i", want_dec, defopt);
        }
        auto_choose = TRUE; /* There will be only one choice anyway. */
    }
#endif
 
    fr->cpu_opts.type = nodec;
#ifdef OPT_MULTI
#ifndef NO_LAYER3
#if (defined OPT_3DNOW_VINTAGE || defined OPT_3DNOWEXT_VINTAGE || defined OPT_SSE || defined OPT_X86_64 || defined OPT_AVX || defined OPT_NEON || defined OPT_NEON64)
    fr->cpu_opts.the_dct36 = dct36;
#endif
#endif
#endif
    /* covers any i386+ cpu; they actually differ only in the synth_1to1 function, mostly... */
#ifdef OPT_X86
    if(cpu_i586(cpu_flags))
    {
#       ifdef OPT_MULTI
        debug2("standard flags: 0x%08x\textended flags: 0x%08x", cpu_flags.std, cpu_flags.ext);
#       endif
#       ifdef OPT_SSE
        if(   !done && (auto_choose || want_dec == sse)
           && cpu_sse(cpu_flags) && cpu_mmx(cpu_flags) )
        {
            chosen = dn_sse;
            fr->cpu_opts.type = sse;
#ifdef OPT_MULTI
#           ifndef NO_LAYER3
            /* if(cpu_fast_sse(cpu_flags)) */ fr->cpu_opts.the_dct36 = dct36_sse;
#           endif
#endif
#           ifndef NO_16BIT
            fr->synths.plain[r_1to1][f_16] = synth_1to1_sse;
#           ifdef ACCURATE_ROUNDING
            fr->synths.stereo[r_1to1][f_16] = synth_1to1_stereo_sse;
#           endif
#           endif
#           ifndef NO_REAL
            fr->synths.plain[r_1to1][f_real] = synth_1to1_real_sse;
            fr->synths.stereo[r_1to1][f_real] = synth_1to1_real_stereo_sse;
#           endif
#           ifndef NO_32BIT
            fr->synths.plain[r_1to1][f_32] = synth_1to1_s32_sse;
            fr->synths.stereo[r_1to1][f_32] = synth_1to1_s32_stereo_sse;
#           endif
            done = 1;
        }
#       endif
#       ifdef OPT_SSE_VINTAGE
        if(   !done && (auto_choose || want_dec == sse_vintage)
           && cpu_sse(cpu_flags) && cpu_mmx(cpu_flags) )
        {
            chosen = dn_sse_vintage;
            fr->cpu_opts.type = sse_vintage;
#           ifndef NO_16BIT
            fr->synths.plain[r_1to1][f_16] = synth_1to1_sse;
#           ifdef ACCURATE_ROUNDING
            fr->synths.stereo[r_1to1][f_16] = synth_1to1_stereo_sse;
#           endif
#           endif
#           ifndef NO_REAL
            fr->synths.plain[r_1to1][f_real] = synth_1to1_real_sse;
            fr->synths.stereo[r_1to1][f_real] = synth_1to1_real_stereo_sse;
#           endif
#           ifndef NO_32BIT
            fr->synths.plain[r_1to1][f_32] = synth_1to1_s32_sse;
            fr->synths.stereo[r_1to1][f_32] = synth_1to1_s32_stereo_sse;
#           endif
            done = 1;
        }
#       endif
#       ifdef OPT_3DNOWEXT
        if(   !done && (auto_choose || want_dec == dreidnowext)
           && cpu_3dnow(cpu_flags)
           && cpu_3dnowext(cpu_flags)
           && cpu_mmx(cpu_flags) )
        {
            chosen = dn_dreidnowext;
            fr->cpu_opts.type = dreidnowext;
#           ifndef NO_16BIT
            fr->synths.plain[r_1to1][f_16] = synth_1to1_3dnowext;
#           endif
            done = 1;
        }
#       endif
#       ifdef OPT_3DNOWEXT_VINTAGE
        if(   !done && (auto_choose || want_dec == dreidnowext_vintage)
           && cpu_3dnow(cpu_flags)
           && cpu_3dnowext(cpu_flags)
           && cpu_mmx(cpu_flags) )
        {
            chosen = dn_dreidnowext_vintage;
            fr->cpu_opts.type = dreidnowext_vintage;
#ifdef OPT_MULTI
#           ifndef NO_LAYER3
            fr->cpu_opts.the_dct36 = dct36_3dnowext;
#           endif
#endif
#           ifndef NO_16BIT
            fr->synths.plain[r_1to1][f_16] = synth_1to1_3dnowext;
#           endif
            done = 1;
        }
#       endif
#       ifdef OPT_3DNOW
        if(    !done && (auto_choose || want_dec == dreidnow)
            && cpu_3dnow(cpu_flags) && cpu_mmx(cpu_flags) )
        {
            chosen = dn_dreidnow;
            fr->cpu_opts.type = dreidnow;
#           ifndef NO_16BIT
            fr->synths.plain[r_1to1][f_16] = synth_1to1_3dnow;
#           endif
            done = 1;
        }
#       endif
#       ifdef OPT_3DNOW_VINTAGE
        if(    !done && (auto_choose || want_dec == dreidnow_vintage)
            && cpu_3dnow(cpu_flags) && cpu_mmx(cpu_flags) )
        {
            chosen = dn_dreidnow_vintage;
            fr->cpu_opts.type = dreidnow_vintage;
#ifdef OPT_MULTI
#           ifndef NO_LAYER3
            fr->cpu_opts.the_dct36 = dct36_3dnow;
#           endif
#endif
#           ifndef NO_16BIT
            fr->synths.plain[r_1to1][f_16] = synth_1to1_3dnow;
#           endif
            done = 1;
        }
#       endif
        #ifdef OPT_MMX
        if(   !done && (auto_choose || want_dec == mmx)
           && cpu_mmx(cpu_flags) )
        {
            chosen = dn_mmx;
            fr->cpu_opts.type = mmx;
#           ifndef NO_16BIT
            fr->synths.plain[r_1to1][f_16] = synth_1to1_mmx;
#           endif
            done = 1;
        }
        #endif
        #ifdef OPT_I586
        if(!done && (auto_choose || want_dec == ifuenf))
        {
            chosen = "i586/pentium";
            fr->cpu_opts.type = ifuenf;
#           ifndef NO_16BIT
            fr->synths.plain[r_1to1][f_16] = synth_1to1_i586;
#           endif
            done = 1;
        }
        #endif
        #ifdef OPT_I586_DITHER
        if(!done && (auto_choose || want_dec == ifuenf_dither))
        {
            chosen = "dithered i586/pentium";
            fr->cpu_opts.type = ifuenf_dither;
            dithered = TRUE;
#           ifndef NO_16BIT
            fr->synths.plain[r_1to1][f_16] = synth_1to1_i586_dither;
#           ifndef NO_DOWNSAMPLE
            fr->synths.plain[r_2to1][f_16] = synth_2to1_dither;
            fr->synths.plain[r_4to1][f_16] = synth_4to1_dither;
#           endif
#           endif
            done = 1;
        }
        #endif
    }
    #ifdef OPT_I486
    /* That won't cooperate in multi opt mode - forcing i486 in layer3.c
       But still... here it is... maybe for real use in future. */
    if(!done && (auto_choose || want_dec == ivier))
    {
        chosen = dn_ivier;
        fr->cpu_opts.type = ivier;
        done = 1;
    }
    #endif
    #ifdef OPT_I386
    if(!done && (auto_choose || want_dec == idrei))
    {
        chosen = dn_idrei;
        fr->cpu_opts.type = idrei;
        done = 1;
    }
    #endif
 
    if(done)
    {
        /*
            We have chosen some x86 decoder... fillup some i386 stuff.
            There is an open question about using dithered synth_1to1 for 8bit wrappers.
            For quality it won't make sense, but wrapped i586_dither wrapped may still be faster...
        */
        enum synth_resample ri;
        enum synth_format   fi;
#       ifndef NO_8BIT
#       ifndef NO_16BIT /* possibility to use a 16->8 wrapper... */
        if(fr->synths.plain[r_1to1][f_16] != synth_base.plain[r_1to1][f_16])
        {
            fr->synths.plain[r_1to1][f_8] = synth_1to1_8bit_wrap;
            fr->synths.mono[r_1to1][f_8] = synth_1to1_8bit_wrap_mono;
            fr->synths.mono2stereo[r_1to1][f_8] = synth_1to1_8bit_wrap_m2s;
        }
#       endif
#       endif
        for(ri=0; ri<r_limit; ++ri)
        for(fi=0; fi<f_limit; ++fi)
        {
            if(fr->synths.plain[ri][fi] == synth_base.plain[ri][fi])
            fr->synths.plain[ri][fi] = plain_i386[ri][fi];
        }
    }
 
#endif /* OPT_X86 */
 
#ifdef OPT_AVX
    if(!done && (auto_choose || want_dec == avx) && cpu_avx(cpu_flags))
    {
        chosen = "x86-64 (AVX)";
        fr->cpu_opts.type = avx;
#ifdef OPT_MULTI
#       ifndef NO_LAYER3
        fr->cpu_opts.the_dct36 = dct36_avx;
#       endif
#endif
#       ifndef NO_16BIT
        fr->synths.plain[r_1to1][f_16] = synth_1to1_avx;
        fr->synths.stereo[r_1to1][f_16] = synth_1to1_stereo_avx;
#       endif
#       ifndef NO_REAL
        fr->synths.plain[r_1to1][f_real] = synth_1to1_real_avx;
        fr->synths.stereo[r_1to1][f_real] = synth_1to1_fltst_avx;
#       endif
#       ifndef NO_32BIT
        fr->synths.plain[r_1to1][f_32] = synth_1to1_s32_avx;
        fr->synths.stereo[r_1to1][f_32] = synth_1to1_s32_stereo_avx;
#       endif
        done = 1;
    }
#endif
 
#ifdef OPT_X86_64
    if(!done && (auto_choose || want_dec == x86_64))
    {
        chosen = "x86-64 (SSE)";
        fr->cpu_opts.type = x86_64;
#ifdef OPT_MULTI
#       ifndef NO_LAYER3
        fr->cpu_opts.the_dct36 = dct36_x86_64;
#       endif
#endif
#       ifndef NO_16BIT
        fr->synths.plain[r_1to1][f_16] = synth_1to1_x86_64;
        fr->synths.stereo[r_1to1][f_16] = synth_1to1_stereo_x86_64;
#       endif
#       ifndef NO_REAL
        fr->synths.plain[r_1to1][f_real] = synth_1to1_real_x86_64;
        fr->synths.stereo[r_1to1][f_real] = synth_1to1_real_stereo_x86_64;
#       endif
#       ifndef NO_32BIT
        fr->synths.plain[r_1to1][f_32] = synth_1to1_s32_x86_64;
        fr->synths.stereo[r_1to1][f_32] = synth_1to1_s32_stereo_x86_64;
#       endif
        done = 1;
    }
#endif
 
#   ifdef OPT_ALTIVEC
    if(!done && (auto_choose || want_dec == altivec))
    {
        chosen = dn_altivec;
        fr->cpu_opts.type = altivec;
#       ifndef NO_16BIT
        fr->synths.plain[r_1to1][f_16] = synth_1to1_altivec;
        fr->synths.stereo[r_1to1][f_16] = synth_1to1_stereo_altivec;
#       endif
#       ifndef NO_REAL
        fr->synths.plain[r_1to1][f_real] = synth_1to1_real_altivec;
        fr->synths.stereo[r_1to1][f_real] = synth_1to1_fltst_altivec;
#       endif
#       ifndef NO_32BIT
        fr->synths.plain[r_1to1][f_32] = synth_1to1_s32_altivec;
        fr->synths.stereo[r_1to1][f_32] = synth_1to1_s32_stereo_altivec;
#       endif
        done = 1;
    }
#   endif
 
#   ifdef OPT_NEON
    if(!done && (auto_choose || want_dec == neon) && cpu_neon(cpu_flags))
    {
        chosen = dn_neon;
        fr->cpu_opts.type = neon;
#ifdef OPT_MULTI
#       ifndef NO_LAYER3
        fr->cpu_opts.the_dct36 = dct36_neon;
#       endif
#endif
#       ifndef NO_16BIT
        fr->synths.plain[r_1to1][f_16] = synth_1to1_neon;
        fr->synths.stereo[r_1to1][f_16] = synth_1to1_stereo_neon;
#       endif
#       ifndef NO_REAL
        fr->synths.plain[r_1to1][f_real] = synth_1to1_real_neon;
        fr->synths.stereo[r_1to1][f_real] = synth_1to1_real_stereo_neon;
#       endif
#       ifndef NO_32BIT
        fr->synths.plain[r_1to1][f_32] = synth_1to1_s32_neon;
        fr->synths.stereo[r_1to1][f_32] = synth_1to1_s32_stereo_neon;
#       endif
        done = 1;
    }
#   endif
 
#   ifdef OPT_ARM
    if(!done && (auto_choose || want_dec == arm))
    {
        chosen = dn_arm;
        fr->cpu_opts.type = arm;
#       ifndef NO_16BIT
        fr->synths.plain[r_1to1][f_16] = synth_1to1_arm;
#       endif
        done = 1;
    }
#   endif
 
#   ifdef OPT_NEON64
    if(!done && (auto_choose || want_dec == neon64) && cpu_neon(cpu_flags))
    {
        chosen = dn_neon64;
        fr->cpu_opts.type = neon64;
#ifdef OPT_MULTI
#       ifndef NO_LAYER3
        fr->cpu_opts.the_dct36 = dct36_neon64;
#       endif
#endif
#       ifndef NO_16BIT
        fr->synths.plain[r_1to1][f_16] = synth_1to1_neon64;
        fr->synths.stereo[r_1to1][f_16] = synth_1to1_stereo_neon64;
#       endif
#       ifndef NO_REAL
        fr->synths.plain[r_1to1][f_real] = synth_1to1_real_neon64;
        fr->synths.stereo[r_1to1][f_real] = synth_1to1_fltst_neon64;
#       endif
#       ifndef NO_32BIT
        fr->synths.plain[r_1to1][f_32] = synth_1to1_s32_neon64;
        fr->synths.stereo[r_1to1][f_32] = synth_1to1_s32st_neon64;
#       endif
        done = 1;
    }
#   endif
 
#   ifdef OPT_GENERIC
    if(!done && (auto_choose || want_dec == generic))
    {
        chosen = dn_generic;
        fr->cpu_opts.type = generic;
        done = 1;
    }
#   endif
 
#ifdef OPT_GENERIC_DITHER
    if(!done && (auto_choose || want_dec == generic_dither))
    {
        chosen = "dithered generic";
        fr->cpu_opts.type = generic_dither;
        dithered = TRUE;
#       ifndef NO_16BIT
        fr->synths.plain[r_1to1][f_16] = synth_1to1_dither;
#       ifndef NO_DOWNSAMPLE
        fr->synths.plain[r_2to1][f_16] = synth_2to1_dither;
        fr->synths.plain[r_4to1][f_16] = synth_4to1_dither;
#       endif
#       endif
        done = 1;
    }
#endif
 
    fr->cpu_opts.class = decclass(fr->cpu_opts.type);
 
#   ifndef NO_8BIT
#   ifndef NO_16BIT /* possibility to use a 16->8 wrapper... */
    /* Last chance to use some optimized routine via generic wrappers (for 8bit). */
    if(     fr->cpu_opts.type != ifuenf_dither
         && fr->cpu_opts.type != generic_dither
         && fr->synths.plain[r_1to1][f_16] != synth_base.plain[r_1to1][f_16] )
    {
        fr->synths.plain[r_1to1][f_8] = synth_1to1_8bit_wrap;
        fr->synths.mono[r_1to1][f_8] = synth_1to1_8bit_wrap_mono;
        fr->synths.mono2stereo[r_1to1][f_8] = synth_1to1_8bit_wrap_m2s;
    }
#   endif
#   endif
 
#ifdef OPT_DITHER
    if(done && dithered)
    {
        /* run-time dither noise table generation */
        if(!frame_dither_init(fr))
        {
            if(NOQUIET) error("Dither noise setup failed!");
            return 0;
        }
    }
#endif
 
    if(done)
    {
        if(VERBOSE) fprintf(stderr, "Decoder: %s\n", chosen);
        return 1;
    }
    else
    {
        if(NOQUIET) error("Could not set optimization!");
        return 0;
    }
}

set_synth_functions()

int set_synth_functions

(

mpg123_handle *

fr

)

Definition at line 363 of file optimize.c.

{
    enum synth_resample resample = r_none;
    enum synth_format basic_format = f_none; /* Default is always 16bit, or whatever. */
 
    /* Select the basic output format, different from 16bit: 8bit, real. */
    if(FALSE){}
#ifndef NO_16BIT
    else if(fr->af.dec_enc & MPG123_ENC_16)
    basic_format = f_16;
#endif
#ifndef NO_8BIT
    else if(fr->af.dec_enc & MPG123_ENC_8)
    basic_format = f_8;
#endif
#ifndef NO_REAL
    else if(fr->af.dec_enc & MPG123_ENC_FLOAT)
    basic_format = f_real;
#endif
#ifndef NO_32BIT
    /* 24 bit integer means decoding to 32 bit first. */
    else if(fr->af.dec_enc & MPG123_ENC_32 || fr->af.dec_enc & MPG123_ENC_24)
    basic_format = f_32;
#endif
 
    /* Make sure the chosen format is compiled into this lib. */
    if(basic_format == f_none)
    {
        if(NOQUIET) error("set_synth_functions: This output format is disabled in this build!");
 
        return -1;
    }
 
    /* Be explicit about downsampling variant. */
    switch(fr->down_sample)
    {
        case 0: resample = r_1to1; break;
#ifndef NO_DOWNSAMPLE
        case 1: resample = r_2to1; break;
        case 2: resample = r_4to1; break;
#endif
#ifndef NO_NTOM
        case 3: resample = r_ntom; break;
#endif
    }
 
    if(resample == r_none)
    {
        if(NOQUIET) error("set_synth_functions: This resampling mode is not supported in this build!");
 
        return -1;
    }
 
    debug2("selecting synth: resample=%i format=%i", resample, basic_format);
    /* Finally selecting the synth functions for stereo / mono. */
    fr->synth = fr->synths.plain[resample][basic_format];
    fr->synth_stereo = fr->synths.stereo[resample][basic_format];
    fr->synth_mono = fr->af.channels==2
        ? fr->synths.mono2stereo[resample][basic_format] /* Mono MPEG file decoded to stereo. */
        : fr->synths.mono[resample][basic_format];       /* Mono MPEG file decoded to mono. */
 
    if(find_dectype(fr) != MPG123_OK) /* Actually determine the currently active decoder breed. */
    {
        fr->err = MPG123_BAD_DECODER_SETUP;
        return MPG123_ERR;
    }
 
    if(frame_buffers(fr) != 0)
    {
        fr->err = MPG123_NO_BUFFERS;
        if(NOQUIET) error("Failed to set up decoder buffers!");
 
        return MPG123_ERR;
    }
 
#ifndef NO_8BIT
    if(basic_format == f_8)
    {
        if(make_conv16to8_table(fr) != 0)
        {
            if(NOQUIET) error("Failed to set up conv16to8 table!");
            /* it's a bit more work to get proper error propagation up */
            return -1;
        }
    }
#endif
 
#ifdef OPT_MMXORSSE
    /* Special treatment for MMX, SSE and 3DNowExt stuff.
       The real-decoding SSE for x86-64 uses normal tables! */
    if(fr->cpu_opts.class == mmxsse
#   ifndef NO_REAL
       && basic_format != f_real
#   endif
#   ifndef NO_32BIT
       && basic_format != f_32
#   endif
#   ifdef ACCURATE_ROUNDING
       && fr->cpu_opts.type != sse
       && fr->cpu_opts.type != sse_vintage
       && fr->cpu_opts.type != x86_64
       && fr->cpu_opts.type != neon
       && fr->cpu_opts.type != neon64
       && fr->cpu_opts.type != avx
#   endif
      )
    {
#ifndef NO_LAYER3
        init_layer3_stuff(fr, init_layer3_gainpow2_mmx);
#endif
#ifndef NO_LAYER12
        init_layer12_stuff(fr, init_layer12_table_mmx);
#endif
        fr->make_decode_tables = make_decode_tables_mmx;
    }
    else
#endif
    {
#ifndef NO_LAYER3
        init_layer3_stuff(fr, init_layer3_gainpow2);
#endif
#ifndef NO_LAYER12
        init_layer12_stuff(fr, init_layer12_table);
#endif
        fr->make_decode_tables = make_decode_tables;
    }
 
    /* We allocated the table buffers just now, so (re)create the tables. */
    fr->make_decode_tables(fr);
 
    return 0;
}

synth_stereo_wrap()

static int synth_stereo_wrap ( real *  bandPtr_l, real *  bandPtr_r, mpg123_handle *  fr  )

static

Definition at line 71 of file optimize.c.

{
    int clip;
    clip  = (fr->synth)(bandPtr_l, 0, fr, 0);
    clip += (fr->synth)(bandPtr_r, 1, fr, 1);
    return clip;
}

Variable Documentation

mpg123_decoder_list

const char* mpg123_decoder_list[]

static

Definition at line 1022 of file optimize.c.

Referenced by mpg123_decoders(), and mpg123_supported_decoders().

synth_base

const struct synth_s synth_base

static

Definition at line 79 of file optimize.c.

Referenced by find_dectype(), and frame_cpu_opt().