hedgewars: misc/libtremor/tremor/res012.c@767d3c4153a1 (annotated)

5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	1	/********************************************************************
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	2	* *
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	3	* THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE. *
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	4	* *
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	5	* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	6	* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	7	* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	8	* *
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	9	* THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2003 *
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	10	* BY THE Xiph.Org FOUNDATION http://www.xiph.org/ *
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	11	* *
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	12	********************************************************************
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	13
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	14	function: residue backend 0, 1 and 2 implementation
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	15
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	16	********************************************************************/
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	17
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	18	#include <stdlib.h>
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	19	#include <string.h>
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	20	#include <math.h>
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	21	#include "ogg.h"
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	22	#include "ivorbiscodec.h"
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	23	#include "codec_internal.h"
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	24	#include "codebook.h"
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	25	#include "misc.h"
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	26	#include "os.h"
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	27
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	28	void res_clear_info(vorbis_info_residue *info){
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	29	if(info){
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	30	if(info->stagemasks)_ogg_free(info->stagemasks);
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	31	if(info->stagebooks)_ogg_free(info->stagebooks);
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	32	memset(info,0,sizeof(*info));
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	33	}
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	34	}
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	35
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	36	static int ilog(unsigned int v){
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	37	int ret=0;
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	38	while(v){
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	39	ret++;
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	40	v>>=1;
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	41	}
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	42	return(ret);
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	43	}
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	44
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	45	/* vorbis_info is for range checking */
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	46	int res_unpack(vorbis_info_residue *info,
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	47	vorbis_info vi,oggpack_buffer opb){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	48	int j,k;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	49	codec_setup_info ci=(codec_setup_info )vi->codec_setup;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	50	memset(info,0,sizeof(*info));
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	51
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	52	info->type=oggpack_read(opb,16);
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	53	if(info->type>2 \|\| info->type<0)goto errout;
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	54	info->begin=oggpack_read(opb,24);
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	55	info->end=oggpack_read(opb,24);
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	56	info->grouping=oggpack_read(opb,24)+1;
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	57	info->partitions=oggpack_read(opb,6)+1;
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	58	info->groupbook=oggpack_read(opb,8);
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	59	if(info->groupbook>=ci->books)goto errout;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	60
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	61	info->stagemasks=_ogg_malloc(info->partitionssizeof(info->stagemasks));
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	62	info->stagebooks=_ogg_malloc(info->partitions8sizeof(*info->stagebooks));
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	63
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	64	for(j=0;j<info->partitions;j++){
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	65	int cascade=oggpack_read(opb,3);
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	66	if(oggpack_read(opb,1))
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	67	cascade\|=(oggpack_read(opb,5)<<3);
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	68	info->stagemasks[j]=cascade;
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	69	}
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	70
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	71	for(j=0;j<info->partitions;j++){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	72	for(k=0;k<8;k++){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	73	if((info->stagemasks[j]>>k)&1){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	74	unsigned char book=oggpack_read(opb,8);
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	75	if(book>=ci->books)goto errout;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	76	info->stagebooks[j*8+k]=book;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	77	if(k+1>info->stages)info->stages=k+1;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	78	}else
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	79	info->stagebooks[j*8+k]=0xff;
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	80	}
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	81	}
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	82
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	83	if(oggpack_eop(opb))goto errout;
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	84
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	85	return 0;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	86	errout:
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	87	res_clear_info(info);
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	88	return 1;
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	89	}
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	90
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	91	int res_inverse(vorbis_dsp_state vd,vorbis_info_residue info,
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	92	ogg_int32_t *in,int nonzero,int ch){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	93
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	94	int i,j,k,s,used=0;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	95	codec_setup_info ci=(codec_setup_info )vd->vi->codec_setup;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	96	codebook *phrasebook=ci->book_param+info->groupbook;
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	97	int samples_per_partition=info->grouping;
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	98	int partitions_per_word=phrasebook->dim;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	99	int pcmend=ci->blocksizes[vd->W];
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	100
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	101	if(info->type<2){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	102	int max=pcmend>>1;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	103	int end=(info->end<max?info->end:max);
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	104	int n=end-info->begin;
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	105
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	106	if(n>0){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	107	int partvals=n/samples_per_partition;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	108	int partwords=(partvals+partitions_per_word-1)/partitions_per_word;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	109
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	110	for(i=0;i<ch;i++)
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	111	if(nonzero[i])
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	112	in[used++]=in[i];
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	113	ch=used;
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	114
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	115	if(used){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	116
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	117	char partword=(char )alloca(chsizeof(partword));
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	118	for(j=0;j<ch;j++)
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	119	partword[j]=(char )alloca(partwordspartitions_per_word*
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	120	sizeof(*partword[j]));
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	121
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	122	for(s=0;s<info->stages;s++){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	123
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	124	for(i=0;i<partvals;){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	125	if(s==0){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	126	/* fetch the partition word for each channel */
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	127
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	128	partword[0][i+partitions_per_word-1]=1;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	129	for(k=partitions_per_word-2;k>=0;k--)
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	130	partword[0][i+k]=partword[0][i+k+1]*info->partitions;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	131
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	132	for(j=1;j<ch;j++)
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	133	for(k=partitions_per_word-1;k>=0;k--)
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	134	partword[j][i+k]=partword[j-1][i+k];
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	135
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	136	for(j=0;j<ch;j++){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	137	int temp=vorbis_book_decode(phrasebook,&vd->opb);
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	138	if(oggpack_eop(&vd->opb))goto eopbreak;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	139
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	140	/* this can be done quickly in assembly due to the quotient
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	141	always being at most six bits */
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	142	for(k=0;k<partitions_per_word;k++){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	143	ogg_uint32_t div=partword[j][i+k];
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	144	partword[j][i+k]=temp/div;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	145	temp-=partword[j][i+k]*div;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	146	}
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	147
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	148	}
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	149	}
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	150
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	151	/* now we decode residual values for the partitions */
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	152	for(k=0;k<partitions_per_word && i<partvals;k++,i++)
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	153	for(j=0;j<ch;j++){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	154	long offset=info->begin+i*samples_per_partition;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	155	if(info->stagemasks[partword[j][i]]&(1<<s)){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	156	codebook *stagebook=ci->book_param+
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	157	info->stagebooks[(partword[j][i]<<3)+s];
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	158	if(info->type){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	159	if(vorbis_book_decodev_add(stagebook,in[j]+offset,&vd->opb,
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	160	samples_per_partition,-8)==-1)
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	161	goto eopbreak;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	162	}else{
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	163	if(vorbis_book_decodevs_add(stagebook,in[j]+offset,&vd->opb,
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	164	samples_per_partition,-8)==-1)
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	165	goto eopbreak;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	166	}
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	167	}
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	168	}
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	169	}
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	170	}
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	171	}
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	172	}
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	173	}else{
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	174	int max=(pcmend*ch)>>1;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	175	int end=(info->end<max?info->end:max);
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	176	int n=end-info->begin;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	177
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	178	if(n>0){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	179	int partvals=n/samples_per_partition;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	180	int partwords=(partvals+partitions_per_word-1)/partitions_per_word;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	181
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	182	char *partword=
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	183	(char )alloca(partwordspartitions_per_wordsizeof(partword));
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	184	int beginoff=info->begin/ch;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	185
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	186	for(i=0;i<ch;i++)if(nonzero[i])break;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	187	if(i==ch)return(0); /* no nonzero vectors */
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	188
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	189	samples_per_partition/=ch;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	190
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	191	for(s=0;s<info->stages;s++){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	192	for(i=0;i<partvals;){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	193
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	194	if(s==0){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	195	int temp;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	196	partword[i+partitions_per_word-1]=1;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	197	for(k=partitions_per_word-2;k>=0;k--)
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	198	partword[i+k]=partword[i+k+1]*info->partitions;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	199
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	200	/* fetch the partition word */
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	201	temp=vorbis_book_decode(phrasebook,&vd->opb);
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	202	if(temp==-1)goto eopbreak;
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	203
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	204	/* this can be done quickly in assembly due to the quotient
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	205	always being at most six bits */
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	206	for(k=0;k<partitions_per_word;k++){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	207	ogg_uint32_t div=partword[i+k];
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	208	partword[i+k]=temp/div;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	209	temp-=partword[i+k]*div;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	210	}
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	211	}
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	212
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	213	/* now we decode residual values for the partitions */
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	214	for(k=0;k<partitions_per_word && i<partvals;k++,i++){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	215	if(info->stagemasks[partword[i]]&(1<<s)){
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	216	codebook *stagebook=ci->book_param+
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	217	info->stagebooks[(partword[i]<<3)+s];
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	218	if(vorbis_book_decodevv_add(stagebook,in,
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	219	i*samples_per_partition+beginoff,ch,
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	220	&vd->opb,
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	221	samples_per_partition,-8)==-1)
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	222	goto eopbreak;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	223	}
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	224	}
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	225	}
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	226	}
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	227	}
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	228	}
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	229	errout:
f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	230	eopbreak:
7697 767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	231
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	232	return 0;
767d3c4153a1 switch the Tremor implementation from the Cocos2D one to the lowmem-no-byte branch and let's see what happens koda parents: 6045 diff changeset	233	}
5170 f7e49eff3708 add libTremor sources (integer-only libvorbis implementation) to repo and ios project koda parents: diff changeset	234

author	koda
	Fri, 21 Sep 2012 00:50:04 +0200
changeset 7697	767d3c4153a1
parent 6045	9a7cc0f29430
child 7849	a12155461b34
permissions	-rw-r--r--