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/*
std synth implementation
Copyright (C) 2001 Martin Vogt
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published by
the Free Software Foundation.
For more information look at the file COPYRIGHT in this package
*/
#include "synthesis.h"
#include "dct64.cpp"
#include <iostream>
using namespace std;
inline void Synthesis::computebuffer_Std(REAL *fraction,
REAL buffer[2][CALCBUFFERSIZE]) {
REAL *out1,*out2;
out1=buffer[currentcalcbuffer]+calcbufferoffset;
out2=buffer[currentcalcbuffer^1]+calcbufferoffset;
dct64(out1,out2,fraction);
}
#define SAVE putraw(r);
#define OS r=*vp * *dp++
#define XX vp+=15;r+=*vp * *dp++
#define OP r+=*--vp * *dp++
inline void Synthesis::generatesingle_Std(void) {
int i;
register REAL r, *vp;
register const REAL *dp;
i=32;
dp=filter;
vp=calcbuffer[LS][currentcalcbuffer]+calcbufferoffset;
// actual_v+actual_write_pos;
switch (calcbufferoffset)
{
case 0:for(;i;i--,vp+=15){
OS;XX;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 1:for(;i;i--,vp+=15){
OS;OP;XX;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 2:for(;i;i--,vp+=15){
OS;OP;OP;XX;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 3:for(;i;i--,vp+=15){
OS;OP;OP;OP;XX;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 4:for(;i;i--,vp+=15){
OS;OP;OP;OP;OP;XX;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 5:for(;i;i--,vp+=15){
OS;OP;OP;OP;OP;OP;XX;OP;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 6:for(;i;i--,vp+=15){
OS;OP;OP;OP;OP;OP;OP;XX;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 7:for(;i;i--,vp+=15){
OS;OP;OP;OP;OP;OP;OP;OP;XX;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 8:for(;i;i--,vp+=15){
OS;OP;OP;OP;OP;OP;OP;OP;OP;XX;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 9:for(;i;i--,vp+=15){
OS;OP;OP;OP;OP;OP;OP;OP;OP;OP;XX;OP;OP;OP;OP;OP;
SAVE;}break;
case 10:for(;i;i--,vp+=15){
OS;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;XX;OP;OP;OP;OP;
SAVE;}break;
case 11:for(;i;i--,vp+=15){
OS;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;XX;OP;OP;OP;
SAVE;}break;
case 12:for(;i;i--,vp+=15){
OS;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;XX;OP;OP;
SAVE;}break;
case 13:for(;i;i--,vp+=15){
OS;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;XX;OP;
SAVE;}break;
case 14:for(;i;i--,vp+=15){
OS;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;XX;
SAVE;}break;
case 15:for(;i;i--,vp+=31){
OS;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
}
}
#undef OS
#undef XX
#undef OP
#undef SAVE
#define SAVE putraw(r1); putraw(r2);
#define OS r1=*vp1 * *dp; \
r2=*vp2 * *dp++
#define XX vp1+=15;r1+=*vp1 * *dp; \
vp2+=15;r2+=*vp2 * *dp++
#define OP r1+=*--vp1 * *dp; \
r2+=*--vp2 * *dp++
/*
inline void Synthesis::generate_old(void)
{
int i;
REAL r1,r2;
register REAL *vp1,*vp2;
register const REAL *dp;
dp=filter;
vp1=calcbuffer[LS][currentcalcbuffer]+calcbufferoffset;
vp2=calcbuffer[RS][currentcalcbuffer]+calcbufferoffset;
// actual_v+actual_write_pos;
i=32;
switch (calcbufferoffset)
{
case 0:for(;i;i--,vp1+=15,vp2+=15){
OS;XX;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 1:for(;i;i--,vp1+=15,vp2+=15){
OS;OP;XX;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 2:for(;i;i--,vp1+=15,vp2+=15){
OS;OP;OP;XX;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 3:for(;i;i--,vp1+=15,vp2+=15){
OS;OP;OP;OP;XX;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 4:for(;i;i--,vp1+=15,vp2+=15){
OS;OP;OP;OP;OP;XX;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 5:for(;i;i--,vp1+=15,vp2+=15){
OS;OP;OP;OP;OP;OP;XX;OP;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 6:for(;i;i--,vp1+=15,vp2+=15){
OS;OP;OP;OP;OP;OP;OP;XX;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 7:for(;i;i--,vp1+=15,vp2+=15){
OS;OP;OP;OP;OP;OP;OP;OP;XX;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 8:for(;i;i--,vp1+=15,vp2+=15){
OS;OP;OP;OP;OP;OP;OP;OP;OP;XX;OP;OP;OP;OP;OP;OP;
SAVE;}break;
case 9:for(;i;i--,vp1+=15,vp2+=15){
OS;OP;OP;OP;OP;OP;OP;OP;OP;OP;XX;OP;OP;OP;OP;OP;
SAVE;}break;
case 10:for(;i;i--,vp1+=15,vp2+=15){
OS;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;XX;OP;OP;OP;OP;
SAVE;}break;
case 11:for(;i;i--,vp1+=15,vp2+=15){
OS;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;XX;OP;OP;OP;
SAVE;}break;
case 12:for(;i;i--,vp1+=15,vp2+=15){
OS;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;XX;OP;OP;
SAVE;}break;
case 13:for(;i;i--,vp1+=15,vp2+=15){
OS;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;XX;OP;
SAVE;}break;
case 14:for(;i;i--,vp1+=15,vp2+=15){
OS;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;XX;
SAVE;}break;
case 15:for(;i;i--,vp1+=31,vp2+=31){
OS;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;OP;
SAVE;}break;
}
}
*/
#undef OS
#undef XX
#undef OP
#undef SAVE
#include "op.h"
#define SAVE putraw(r1); putraw(r2);
inline void Synthesis::generate_Std(void)
{
int i;
REAL r1,r2;
register REAL *vp1;
register const REAL *dp;
dp=filter;
vp1=calcbuffer[LS][currentcalcbuffer]+calcbufferoffset;
// we calculate cp2 from vp1 because they are both
// in the same array. code was:
// register REAL* vp2
//vp2=calcbuffer[RS][currentcalcbuffer]+calcbufferoffset;
i=32;
switch (calcbufferoffset)
{
case 0:for(;i;i--,OP_END_1(15,14)){
OS;XX1;XX2;OP14;
SAVE;}break;
case 1:for(;i;i--,OP_END_1(15,13)){
OS;OP;OP_END_2(1);XX2;OP13;
SAVE;}break;
case 2:for(;i;i--,OP_END_1(15,12)){
OS;OP2;OP_END_2(2);XX2;OP12;
SAVE;}break;
case 3:for(;i;i--,OP_END_1(15,11)){
OS;OP3;OP_END_2(3);XX2;OP11;
SAVE;}break;
case 4:for(;i;i--,OP_END_1(15,10)){
OS;OP4;OP_END_2(4);XX2;OP10;
SAVE;}break;
case 5:for(;i;i--,OP_END_1(15,9)){
OS;OP5;OP_END_2(5);XX2;OP9;
SAVE;}break;
case 6:for(;i;i--,OP_END_1(15,8)){
OS;OP6;OP_END_2(6);XX2;OP8;
SAVE;}break;
case 7:for(;i;i--,OP_END_1(15,7)){
OS;OP7;OP_END_2(7);XX2;OP7;
SAVE;}break;
case 8:for(;i;i--,OP_END_1(15,6)){
OS;OP8;OP_END_2(8);XX2;OP6;
SAVE;}break;
case 9:for(;i;i--,OP_END_1(15,5)){
OS;OP9;OP_END_2(9);XX2;OP5;
SAVE;}break;
case 10:for(;i;i--,OP_END_1(15,4)){
OS;OP10;OP_END_2(10);XX2;OP4;
SAVE;}break;
case 11:for(;i;i--,OP_END_1(15,3)){
OS;OP11;OP_END_2(11);XX2;OP3;
SAVE;}break;
case 12:for(;i;i--,OP_END_1(15,2)){
OS;OP12;OP_END_2(12);XX2;OP2;
SAVE;}break;
case 13:for(;i;i--,OP_END_1(15,1)){
OS;OP13;OP_END_2(13);XX2;OP;
SAVE;}break;
case 14:for(;i;i--,vp1+=15){
OS;OP14;OP_END_2(14);XX2;
SAVE;}break;
case 15:for(;i;i--,OP_END_1(31,15)){
OS;OP15;
SAVE;}break;
}
}
#undef OP_END_1
#undef OP_END_2
#undef OP
#undef OP1
#undef OP2
#undef OP3
#undef OP4
#undef OP5
#undef OP6
#undef OP7
#undef OP8
#undef OP9
#undef OP10
#undef OP11
#undef OP12
#undef OP13
#undef OP14
#undef OP15
#undef OS
#undef XX1
#undef XX2
#undef SCHEDULE
#undef SCHEDULE1
#undef SCHEDULE2
#undef SAVE
void Synthesis::synth_Std(int lOutputStereo,REAL *fractionL,REAL *fractionR) {
switch(lOutputStereo) {
case true:
computebuffer_Std(fractionL,calcbuffer[LS]);
computebuffer_Std(fractionR,calcbuffer[RS]);
generate_Std();
nextOffset();
break;
case false:
computebuffer_Std(fractionL,calcbuffer[LS]);
generatesingle_Std();
nextOffset();
break;
default:
cout << "unknown lOutputStereo in Synthesis::synth_Std"<<endl;
exit(0);
}
}
void Synthesis::synthMP3_Std(int lOutputStereo,
REAL hout [2][SSLIMIT][SBLIMIT]) {
int ss;
switch(lOutputStereo) {
case true:
for(ss=0;ss<SSLIMIT;ss++) {
computebuffer_Std(hout[LS][ss],calcbuffer[LS]);
computebuffer_Std(hout[RS][ss],calcbuffer[RS]);
generate_Std();
nextOffset();
}
break;
case false:
for(ss=0;ss<SSLIMIT;ss++) {
computebuffer_Std(hout[LS][ss],calcbuffer[LS]);
generatesingle_Std();
nextOffset();
}
break;
default:
cout << "unknown lOutputStereo in Synthesis::synth_Std"<<endl;
exit(0);
}
}
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