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634 lines
16 KiB
C
634 lines
16 KiB
C
/*
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synth.c: The functions for synthesizing samples, at the end of decoding.
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copyright 1995-2008 by the mpg123 project - free software under the terms of the LGPL 2.1
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see COPYING and AUTHORS files in distribution or http://mpg123.org
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initially written by Michael Hipp, heavily dissected and rearranged by Thomas Orgis
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*/
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#include "mpg123lib_intern.h"
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#include "sample.h"
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#include "debug.h"
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/*
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Part 1: All synth functions that produce signed short.
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That is:
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- synth_1to1 with cpu-specific variants (synth_1to1_i386, synth_1to1_i586 ...)
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- synth_1to1_mono and synth_1to1_mono2stereo; which use fr->synths.plain[r_1to1][f_16].
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Nearly every decoder variant has it's own synth_1to1, while the mono conversion is shared.
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*/
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#define SAMPLE_T short
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#define WRITE_SAMPLE(samples,sum,clip) WRITE_SHORT_SAMPLE(samples,sum,clip)
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/* Part 1a: All straight 1to1 decoding functions */
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#define BLOCK 0x40 /* One decoding block is 64 samples. */
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#define SYNTH_NAME synth_1to1
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#include "synth.h"
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#undef SYNTH_NAME
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/* Mono-related synths; they wrap over _some_ synth_1to1. */
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#define SYNTH_NAME fr->synths.plain[r_1to1][f_16]
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#define MONO_NAME synth_1to1_mono
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#define MONO2STEREO_NAME synth_1to1_mono2stereo
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#include "synth_mono.h"
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#undef SYNTH_NAME
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#undef MONO_NAME
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#undef MONO2STEREO_NAME
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/* Now we have possibly some special synth_1to1 ...
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... they produce signed short; the mono functions defined above work on the special synths, too. */
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#ifdef OPT_GENERIC_DITHER
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#define SYNTH_NAME synth_1to1_dither
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/* We need the accurate sample writing... */
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#undef WRITE_SAMPLE
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#define WRITE_SAMPLE(samples,sum,clip) WRITE_SHORT_SAMPLE_ACCURATE(samples,sum,clip)
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#define USE_DITHER
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#include "synth.h"
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#undef USE_DITHER
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#undef SYNTH_NAME
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#undef WRITE_SAMPLE
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#define WRITE_SAMPLE(samples,sum,clip) WRITE_SHORT_SAMPLE(samples,sum,clip)
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#endif
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#ifdef OPT_X86
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/* The i386-specific C code, here as short variant, later 8bit and float. */
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#define NO_AUTOINCREMENT
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#define SYNTH_NAME synth_1to1_i386
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#include "synth.h"
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#undef SYNTH_NAME
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/* i386 uses the normal mono functions. */
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#undef NO_AUTOINCREMENT
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#endif
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#undef BLOCK /* Following functions are so special that they don't need this. */
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#ifdef OPT_I586
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/* This is defined in assembler. */
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int synth_1to1_i586_asm(real *bandPtr, int channel, unsigned char *out, unsigned char *buffs, int *bo, real *decwin);
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/* This is just a hull to use the mpg123 handle. */
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int synth_1to1_i586(real *bandPtr, int channel, mpg123_handle *fr, int final)
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{
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int ret;
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if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer);
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ret = synth_1to1_i586_asm(bandPtr, channel, fr->buffer.data+fr->buffer.fill, fr->rawbuffs, &fr->bo, fr->decwin);
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if(final) fr->buffer.fill += 128;
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return ret;
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}
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#endif
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#ifdef OPT_I586_DITHER
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/* This is defined in assembler. */
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int synth_1to1_i586_asm_dither(real *bandPtr, int channel, unsigned char *out, unsigned char *buffs, int *bo, real *decwin, float *dithernoise);
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/* This is just a hull to use the mpg123 handle. */
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int synth_1to1_i586_dither(real *bandPtr, int channel, mpg123_handle *fr, int final)
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{
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int ret;
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int bo_dither[2]; /* Temporary workaround? Could expand the asm code. */
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if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer);
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/* Applying this hack, to change the asm only bit by bit (adding dithernoise pointer). */
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bo_dither[0] = fr->bo;
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bo_dither[1] = fr->ditherindex;
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ret = synth_1to1_i586_asm_dither(bandPtr, channel, fr->buffer.data+fr->buffer.fill, fr->rawbuffs, bo_dither, fr->decwin, fr->dithernoise);
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fr->bo = bo_dither[0];
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fr->ditherindex = bo_dither[1];
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if(final) fr->buffer.fill += 128;
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return ret;
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}
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#endif
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#ifdef OPT_3DNOW
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/* Those are defined in assembler. */
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void do_equalizer_3dnow(real *bandPtr,int channel, real equalizer[2][32]);
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int synth_1to1_3dnow_asm(real *bandPtr, int channel, unsigned char *out, unsigned char *buffs, int *bo, real *decwin);
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/* This is just a hull to use the mpg123 handle. */
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int synth_1to1_3dnow(real *bandPtr, int channel, mpg123_handle *fr, int final)
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{
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int ret;
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if(fr->have_eq_settings) do_equalizer_3dnow(bandPtr,channel,fr->equalizer);
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/* this is in asm, can be dither or not */
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/* uh, is this return from pointer correct? */
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ret = (int) synth_1to1_3dnow_asm(bandPtr, channel, fr->buffer.data+fr->buffer.fill, fr->rawbuffs, &fr->bo, fr->decwin);
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if(final) fr->buffer.fill += 128;
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return ret;
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}
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#endif
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#ifdef OPT_MMX
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/* This is defined in assembler. */
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int synth_1to1_MMX(real *bandPtr, int channel, short *out, short *buffs, int *bo, float *decwins);
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/* This is just a hull to use the mpg123 handle. */
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int synth_1to1_mmx(real *bandPtr, int channel, mpg123_handle *fr, int final)
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{
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if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer);
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/* in asm */
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synth_1to1_MMX(bandPtr, channel, (short*) (fr->buffer.data+fr->buffer.fill), (short *) fr->rawbuffs, &fr->bo, fr->decwins);
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if(final) fr->buffer.fill += 128;
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return 0;
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}
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#endif
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#ifdef OPT_SSE
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#ifdef ACCURATE_ROUNDING
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/* This is defined in assembler. */
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int synth_1to1_sse_accurate_asm(real *window, real *b0, short *samples, int bo1);
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int synth_1to1_stereo_sse_accurate_asm(real *window, real *b0l, real *b0r, short *samples, int bo1);
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void dct64_real_sse(real *out0, real *out1, real *samples);
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/* This is just a hull to use the mpg123 handle. */
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int synth_1to1_sse(real *bandPtr,int channel, mpg123_handle *fr, int final)
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{
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short *samples = (short *) (fr->buffer.data+fr->buffer.fill);
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real *b0, **buf;
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int clip;
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int bo1;
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if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer);
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if(!channel)
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{
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fr->bo--;
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fr->bo &= 0xf;
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buf = fr->real_buffs[0];
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}
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else
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{
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samples++;
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buf = fr->real_buffs[1];
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}
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if(fr->bo & 0x1)
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{
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b0 = buf[0];
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bo1 = fr->bo;
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dct64_real_sse(buf[1]+((fr->bo+1)&0xf),buf[0]+fr->bo,bandPtr);
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}
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else
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{
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b0 = buf[1];
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bo1 = fr->bo+1;
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dct64_real_sse(buf[0]+fr->bo,buf[1]+fr->bo+1,bandPtr);
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}
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clip = synth_1to1_sse_accurate_asm(fr->decwin, b0, samples, bo1);
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if(final) fr->buffer.fill += 128;
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return clip;
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}
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int synth_1to1_stereo_sse(real *bandPtr_l, real *bandPtr_r, mpg123_handle *fr)
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{
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short *samples = (short *) (fr->buffer.data+fr->buffer.fill);
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real *b0l, *b0r, **bufl, **bufr;
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int bo1;
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int clip;
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if(fr->have_eq_settings)
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{
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do_equalizer(bandPtr_l,0,fr->equalizer);
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do_equalizer(bandPtr_r,1,fr->equalizer);
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}
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fr->bo--;
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fr->bo &= 0xf;
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bufl = fr->real_buffs[0];
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bufr = fr->real_buffs[1];
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if(fr->bo & 0x1)
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{
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b0l = bufl[0];
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b0r = bufr[0];
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bo1 = fr->bo;
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dct64_real_sse(bufl[1]+((fr->bo+1)&0xf),bufl[0]+fr->bo,bandPtr_l);
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dct64_real_sse(bufr[1]+((fr->bo+1)&0xf),bufr[0]+fr->bo,bandPtr_r);
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}
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else
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{
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b0l = bufl[1];
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b0r = bufr[1];
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bo1 = fr->bo+1;
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dct64_real_sse(bufl[0]+fr->bo,bufl[1]+fr->bo+1,bandPtr_l);
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dct64_real_sse(bufr[0]+fr->bo,bufr[1]+fr->bo+1,bandPtr_r);
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}
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clip = synth_1to1_stereo_sse_accurate_asm(fr->decwin, b0l, b0r, samples, bo1);
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fr->buffer.fill += 128;
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return clip;
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}
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#else
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/* This is defined in assembler. */
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void synth_1to1_sse_asm(real *bandPtr, int channel, short *samples, short *buffs, int *bo, real *decwin);
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/* This is just a hull to use the mpg123 handle. */
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int synth_1to1_sse(real *bandPtr, int channel, mpg123_handle *fr, int final)
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{
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if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer);
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synth_1to1_sse_asm(bandPtr, channel, (short*) (fr->buffer.data+fr->buffer.fill), (short *) fr->rawbuffs, &fr->bo, fr->decwins);
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if(final) fr->buffer.fill += 128;
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return 0;
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}
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#endif
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#endif
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#ifdef OPT_3DNOWEXT
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/* This is defined in assembler. */
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void synth_1to1_3dnowext_asm(real *bandPtr, int channel, short *samples, short *buffs, int *bo, real *decwin);
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/* This is just a hull to use the mpg123 handle. */
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int synth_1to1_3dnowext(real *bandPtr, int channel, mpg123_handle *fr, int final)
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{
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if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer);
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synth_1to1_3dnowext_asm(bandPtr, channel, (short*) (fr->buffer.data+fr->buffer.fill), (short *) fr->rawbuffs, &fr->bo, fr->decwins);
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if(final) fr->buffer.fill += 128;
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return 0;
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}
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#endif
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#ifdef OPT_X86_64
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#ifdef ACCURATE_ROUNDING
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/* Assembler routines. */
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int synth_1to1_x86_64_accurate_asm(real *window, real *b0, short *samples, int bo1);
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int synth_1to1_stereo_x86_64_accurate_asm(real *window, real *b0l, real *b0r, short *samples, int bo1);
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void dct64_real_x86_64(real *out0, real *out1, real *samples);
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/* Hull for C mpg123 API */
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int synth_1to1_x86_64(real *bandPtr,int channel, mpg123_handle *fr, int final)
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{
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short *samples = (short *) (fr->buffer.data+fr->buffer.fill);
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real *b0, **buf;
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int bo1;
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int clip;
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if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer);
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if(!channel)
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{
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fr->bo--;
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fr->bo &= 0xf;
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buf = fr->real_buffs[0];
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}
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else
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{
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samples++;
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buf = fr->real_buffs[1];
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}
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if(fr->bo & 0x1)
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{
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b0 = buf[0];
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bo1 = fr->bo;
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dct64_real_x86_64(buf[1]+((fr->bo+1)&0xf),buf[0]+fr->bo,bandPtr);
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}
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else
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{
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b0 = buf[1];
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bo1 = fr->bo+1;
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dct64_real_x86_64(buf[0]+fr->bo,buf[1]+fr->bo+1,bandPtr);
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}
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clip = synth_1to1_x86_64_accurate_asm(fr->decwin, b0, samples, bo1);
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if(final) fr->buffer.fill += 128;
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return clip;
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}
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int synth_1to1_stereo_x86_64(real *bandPtr_l, real *bandPtr_r, mpg123_handle *fr)
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{
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short *samples = (short *) (fr->buffer.data+fr->buffer.fill);
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real *b0l, *b0r, **bufl, **bufr;
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int bo1;
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int clip;
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if(fr->have_eq_settings)
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{
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do_equalizer(bandPtr_l,0,fr->equalizer);
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do_equalizer(bandPtr_r,1,fr->equalizer);
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}
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fr->bo--;
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fr->bo &= 0xf;
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bufl = fr->real_buffs[0];
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bufr = fr->real_buffs[1];
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if(fr->bo & 0x1)
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{
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b0l = bufl[0];
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b0r = bufr[0];
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bo1 = fr->bo;
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dct64_real_x86_64(bufl[1]+((fr->bo+1)&0xf),bufl[0]+fr->bo,bandPtr_l);
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dct64_real_x86_64(bufr[1]+((fr->bo+1)&0xf),bufr[0]+fr->bo,bandPtr_r);
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}
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else
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{
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b0l = bufl[1];
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b0r = bufr[1];
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bo1 = fr->bo+1;
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dct64_real_x86_64(bufl[0]+fr->bo,bufl[1]+fr->bo+1,bandPtr_l);
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dct64_real_x86_64(bufr[0]+fr->bo,bufr[1]+fr->bo+1,bandPtr_r);
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}
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clip = synth_1to1_stereo_x86_64_accurate_asm(fr->decwin, b0l, b0r, samples, bo1);
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fr->buffer.fill += 128;
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return clip;
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}
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#else
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/* This is defined in assembler. */
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int synth_1to1_x86_64_asm(short *window, short *b0, short *samples, int bo1);
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int synth_1to1_stereo_x86_64_asm(short *window, short *b0l, short *b0r, short *samples, int bo1);
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void dct64_x86_64(short *out0, short *out1, real *samples);
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/* This is just a hull to use the mpg123 handle. */
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int synth_1to1_x86_64(real *bandPtr,int channel, mpg123_handle *fr, int final)
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{
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short *samples = (short *) (fr->buffer.data+fr->buffer.fill);
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short *b0, **buf;
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int clip;
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int bo1;
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if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer);
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if(!channel)
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{
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fr->bo--;
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fr->bo &= 0xf;
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buf = fr->short_buffs[0];
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}
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else
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{
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samples++;
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buf = fr->short_buffs[1];
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}
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if(fr->bo & 0x1)
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{
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b0 = buf[0];
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bo1 = fr->bo;
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dct64_x86_64(buf[1]+((fr->bo+1)&0xf),buf[0]+fr->bo,bandPtr);
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}
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else
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{
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b0 = buf[1];
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bo1 = fr->bo+1;
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dct64_x86_64(buf[0]+fr->bo,buf[1]+fr->bo+1,bandPtr);
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}
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clip = synth_1to1_x86_64_asm((short *)fr->decwins, b0, samples, bo1);
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if(final) fr->buffer.fill += 128;
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return clip;
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}
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int synth_1to1_stereo_x86_64(real *bandPtr_l,real *bandPtr_r, mpg123_handle *fr)
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{
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short *samples = (short *) (fr->buffer.data+fr->buffer.fill);
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short *b0l, *b0r, **bufl, **bufr;
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int clip;
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int bo1;
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if(fr->have_eq_settings)
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{
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do_equalizer(bandPtr_l,0,fr->equalizer);
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do_equalizer(bandPtr_r,1,fr->equalizer);
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}
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fr->bo--;
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fr->bo &= 0xf;
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bufl = fr->short_buffs[0];
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bufr = fr->short_buffs[1];
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if(fr->bo & 0x1)
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{
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b0l = bufl[0];
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b0r = bufr[0];
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bo1 = fr->bo;
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dct64_x86_64(bufl[1]+((fr->bo+1)&0xf),bufl[0]+fr->bo,bandPtr_l);
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dct64_x86_64(bufr[1]+((fr->bo+1)&0xf),bufr[0]+fr->bo,bandPtr_r);
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}
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else
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{
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b0l = bufl[1];
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b0r = bufr[1];
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bo1 = fr->bo+1;
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dct64_x86_64(bufl[0]+fr->bo,bufl[1]+fr->bo+1,bandPtr_l);
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dct64_x86_64(bufr[0]+fr->bo,bufr[1]+fr->bo+1,bandPtr_r);
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}
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clip = synth_1to1_stereo_x86_64_asm((short *)fr->decwins, b0l, b0r, samples, bo1);
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fr->buffer.fill += 128;
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return clip;
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}
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#endif
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#endif
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#ifdef OPT_ARM
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#ifdef ACCURATE_ROUNDING
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/* Assembler routines. */
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int synth_1to1_arm_accurate_asm(real *window, real *b0, short *samples, int bo1);
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/* Hull for C mpg123 API */
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int synth_1to1_arm(real *bandPtr,int channel, mpg123_handle *fr, int final)
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|
{
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short *samples = (short *) (fr->buffer.data+fr->buffer.fill);
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|
|
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real *b0, **buf;
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int bo1;
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int clip;
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|
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if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer);
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|
|
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if(!channel)
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{
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fr->bo--;
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fr->bo &= 0xf;
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buf = fr->real_buffs[0];
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|
}
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else
|
|
{
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|
samples++;
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|
buf = fr->real_buffs[1];
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}
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|
|
|
if(fr->bo & 0x1)
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|
{
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|
b0 = buf[0];
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bo1 = fr->bo;
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dct64(buf[1]+((fr->bo+1)&0xf),buf[0]+fr->bo,bandPtr);
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}
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else
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{
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b0 = buf[1];
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bo1 = fr->bo+1;
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dct64(buf[0]+fr->bo,buf[1]+fr->bo+1,bandPtr);
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}
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|
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clip = synth_1to1_arm_accurate_asm(fr->decwin, b0, samples, bo1);
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|
|
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if(final) fr->buffer.fill += 128;
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|
|
|
return clip;
|
|
}
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#else
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/* Assembler routines. */
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int synth_1to1_arm_asm(real *window, real *b0, short *samples, int bo1);
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/* Hull for C mpg123 API */
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|
int synth_1to1_arm(real *bandPtr,int channel, mpg123_handle *fr, int final)
|
|
{
|
|
short *samples = (short *) (fr->buffer.data+fr->buffer.fill);
|
|
|
|
real *b0, **buf;
|
|
int bo1;
|
|
int clip;
|
|
|
|
if(fr->have_eq_settings) do_equalizer(bandPtr,channel,fr->equalizer);
|
|
|
|
if(!channel)
|
|
{
|
|
fr->bo--;
|
|
fr->bo &= 0xf;
|
|
buf = fr->real_buffs[0];
|
|
}
|
|
else
|
|
{
|
|
samples++;
|
|
buf = fr->real_buffs[1];
|
|
}
|
|
|
|
if(fr->bo & 0x1)
|
|
{
|
|
b0 = buf[0];
|
|
bo1 = fr->bo;
|
|
dct64(buf[1]+((fr->bo+1)&0xf),buf[0]+fr->bo,bandPtr);
|
|
}
|
|
else
|
|
{
|
|
b0 = buf[1];
|
|
bo1 = fr->bo+1;
|
|
dct64(buf[0]+fr->bo,buf[1]+fr->bo+1,bandPtr);
|
|
}
|
|
|
|
clip = synth_1to1_arm_asm(fr->decwin, b0, samples, bo1);
|
|
|
|
if(final) fr->buffer.fill += 128;
|
|
|
|
return clip;
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef NO_DOWNSAMPLE
|
|
|
|
/*
|
|
Part 1b: 2to1 synth.
|
|
Only generic and i386 functions this time.
|
|
*/
|
|
#define BLOCK 0x20 /* One decoding block is 32 samples. */
|
|
|
|
#define SYNTH_NAME synth_2to1
|
|
#include "synth.h"
|
|
#undef SYNTH_NAME
|
|
|
|
#ifdef OPT_DITHER /* Used for generic_dither and as fallback for i586_dither. */
|
|
#define SYNTH_NAME synth_2to1_dither
|
|
#define USE_DITHER
|
|
#include "synth.h"
|
|
#undef USE_DITHER
|
|
#undef SYNTH_NAME
|
|
#endif
|
|
|
|
#define SYNTH_NAME fr->synths.plain[r_2to1][f_16]
|
|
#define MONO_NAME synth_2to1_mono
|
|
#define MONO2STEREO_NAME synth_2to1_mono2stereo
|
|
#include "synth_mono.h"
|
|
#undef SYNTH_NAME
|
|
#undef MONO_NAME
|
|
#undef MONO2STEREO_NAME
|
|
|
|
#ifdef OPT_X86
|
|
#define NO_AUTOINCREMENT
|
|
#define SYNTH_NAME synth_2to1_i386
|
|
#include "synth.h"
|
|
#undef SYNTH_NAME
|
|
/* i386 uses the normal mono functions. */
|
|
#undef NO_AUTOINCREMENT
|
|
#endif
|
|
|
|
#undef BLOCK
|
|
|
|
/*
|
|
Part 1c: 4to1 synth.
|
|
Same procedure as above...
|
|
*/
|
|
#define BLOCK 0x10 /* One decoding block is 16 samples. */
|
|
|
|
#define SYNTH_NAME synth_4to1
|
|
#include "synth.h"
|
|
#undef SYNTH_NAME
|
|
|
|
#ifdef OPT_DITHER
|
|
#define SYNTH_NAME synth_4to1_dither
|
|
#define USE_DITHER
|
|
#include "synth.h"
|
|
#undef USE_DITHER
|
|
#undef SYNTH_NAME
|
|
#endif
|
|
|
|
#define SYNTH_NAME fr->synths.plain[r_4to1][f_16] /* This is just for the _i386 one... gotta check if it is really useful... */
|
|
#define MONO_NAME synth_4to1_mono
|
|
#define MONO2STEREO_NAME synth_4to1_mono2stereo
|
|
#include "synth_mono.h"
|
|
#undef SYNTH_NAME
|
|
#undef MONO_NAME
|
|
#undef MONO2STEREO_NAME
|
|
|
|
#ifdef OPT_X86
|
|
#define NO_AUTOINCREMENT
|
|
#define SYNTH_NAME synth_4to1_i386
|
|
#include "synth.h"
|
|
#undef SYNTH_NAME
|
|
/* i386 uses the normal mono functions. */
|
|
#undef NO_AUTOINCREMENT
|
|
#endif
|
|
|
|
#undef BLOCK
|
|
|
|
#endif /* NO_DOWNSAMPLE */
|
|
|
|
#ifndef NO_NTOM
|
|
/*
|
|
Part 1d: ntom synth.
|
|
Same procedure as above... Just no extra play anymore, straight synth that uses the plain dct64.
|
|
*/
|
|
|
|
/* These are all in one header, there's no flexibility to gain. */
|
|
#define SYNTH_NAME synth_ntom
|
|
#define MONO_NAME synth_ntom_mono
|
|
#define MONO2STEREO_NAME synth_ntom_mono2stereo
|
|
#include "synth_ntom.h"
|
|
#undef SYNTH_NAME
|
|
#undef MONO_NAME
|
|
#undef MONO2STEREO_NAME
|
|
|
|
#endif
|
|
|
|
/* Done with short output. */
|
|
#undef SAMPLE_T
|
|
#undef WRITE_SAMPLE
|