The first commit
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Banjo Kazooie
188
src/core1/done/audio/n_drvrNew.c
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188
src/core1/done/audio/n_drvrNew.c
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#include <ultra64.h>
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#include "functions.h"
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#include "variables.h"
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#include "n_synth.h"
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/*
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* WARNING: THE FOLLOWING CONSTANT MUST BE KEPT IN SYNC
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* WITH SCALING IN MICROCODE!!!
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*/
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#define SCALE 16384
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/*
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* the following arrays contain default parameters for
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* a few hopefully useful effects.
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*/
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#define ms *(((s32)((f32)44.1))&~0x7)
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s32 SMALLROOM_PARAMS_N[26] = {
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/* sections length */
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3, 100 ms,
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/* chorus chorus filter
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input output fbcoef ffcoef gain rate depth coef */
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0, 54 ms, 9830, -9830, 0, 0, 0, 0,
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19 ms, 38 ms, 3276, -3276, 0x3fff, 0, 0, 0,
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0, 60 ms, 5000, 0, 0, 0, 0, 0x5000
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};
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s32 BIGROOM_PARAMS_N[34] = {
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/* sections length */
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4, 100 ms,
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/* chorus chorus filter
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input output fbcoef ffcoef gain rate depth coef */
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0, 66 ms, 9830, -9830, 0, 0, 0, 0,
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22 ms, 54 ms, 3276, -3276, 0x3fff, 0, 0, 0,
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66 ms, 91 ms, 3276, -3276, 0x3fff, 0, 0, 0,
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0, 94 ms, 8000, 0, 0, 0, 0, 0x5000
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};
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s32 ECHO_PARAMS_N[10] = {
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/* sections length */
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1, 200 ms,
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/* chorus chorus filter
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input output fbcoef ffcoef gain rate depth coef */
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0, 179 ms, 12000, 0, 0x7fff, 0, 0, 0
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};
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s32 CHORUS_PARAMS_N[10] = {
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/* sections length */
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1, 20 ms,
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/* chorus chorus filter
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input output fbcoef ffcoef gain rate depth coef */
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0, 5 ms, 0x4000, 0, 0x7fff, 7600, 700, 0
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};
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s32 FLANGE_PARAMS_N[10] = {
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/* sections length */
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1, 20 ms,
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/* chorus chorus filter
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input output fbcoef ffcoef gain rate depth coef */
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0, 5 ms, 0, 0x5fff, 0x7fff, 380, 500, 0
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};
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s32 NULL_PARAMS_N[10] = {
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0, 0,
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0, 0, 0, 0, 0, 0, 0, 0
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};
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void n_alFxNew(ALFx **fx_ar, ALSynConfig *c, ALHeap *hp)
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{
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u16 i, j, k;
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s32 *param = 0;
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ALDelay *d;
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ALFx *r;
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*fx_ar = r = (ALFx *)alHeapAlloc(hp, 1, sizeof(ALFx));
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switch (c->fxType) {
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case AL_FX_SMALLROOM: param = SMALLROOM_PARAMS_N; break;
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case AL_FX_BIGROOM: param = BIGROOM_PARAMS_N; break;
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case AL_FX_ECHO: param = ECHO_PARAMS_N; break;
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case AL_FX_CHORUS: param = CHORUS_PARAMS_N; break;
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case AL_FX_FLANGE: param = FLANGE_PARAMS_N; break;
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case AL_FX_CUSTOM: param = c->params; break;
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default: param = NULL_PARAMS_N; break;
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}
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j = 0;
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r->section_count = param[j++];
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r->length = param[j++];
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r->delay = alHeapAlloc(hp, r->section_count, sizeof(ALDelay));
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r->base = alHeapAlloc(hp, r->length, sizeof(s16));
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r->input = r->base;
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for ( k=0; k < r->length; k++)
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r->base[k] = 0;
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for ( i=0; i<r->section_count; i++ ){
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d = &r->delay[i];
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d->input = param[j++];
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d->output = param[j++];
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d->fbcoef = param[j++];
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d->ffcoef = param[j++];
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d->gain = param[j++];
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if (param[j]) {
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#define RANGE 2.0
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/* d->rsinc = ((f32) param[j++])/0xffffff; */
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d->rsinc = ((((f32)param[j++])/1000) * RANGE)/c->outputRate;
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/*
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* the following constant is derived from:
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*
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* ratio = 2^(cents/1200)
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*
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* and therefore for hundredths of a cent
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* x
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* ln(ratio) = ---------------
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* (120,000)/ln(2)
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* where
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* 120,000/ln(2) = 173123.40...
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*/
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#define CONVERT 173123.404906676
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#define LENGTH (d->output - d->input)
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d->rsgain = (((f32) param[j++])/CONVERT) * LENGTH;
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d->rsval = 1.0;
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d->rsdelta = 0.0;
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d->rs = alHeapAlloc(hp, 1, sizeof(ALResampler));
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d->rs->state = alHeapAlloc(hp, 1, sizeof(RESAMPLE_STATE));
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d->rs->delta = 0.0;
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d->rs->first = 1;
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} else {
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d->rs = 0;
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j++;
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j++;
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}
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if (param[j]) {
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d->lp = alHeapAlloc(hp, 1, sizeof(ALLowPass));
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d->lp->fstate = alHeapAlloc(hp, 1, sizeof(POLEF_STATE));
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d->lp->fc = param[j++];
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_init_lpfilter(d->lp);
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} else {
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d->lp = 0;
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j++;
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}
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}
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}
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void alN_PVoiceNew(N_PVoice *mv, ALDMANew dmaNew, ALHeap *hp)
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{
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mv->dc_state = alHeapAlloc(hp, 1, sizeof(ADPCM_STATE));
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mv->dc_lstate = alHeapAlloc(hp, 1, sizeof(ADPCM_STATE));
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mv->dc_dma = dmaNew(&mv->dc_dmaState);
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mv->dc_lastsam = 0;
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mv->dc_first = 1;
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mv->dc_memin = 0;
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mv->rs_state = alHeapAlloc(hp, 1, sizeof(RESAMPLE_STATE));
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mv->rs_delta = 0.0;
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mv->rs_first = 1;
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mv->rs_ratio = 1.0;
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mv->rs_upitch = 0;
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mv->em_state = alHeapAlloc(hp, 1, sizeof(ENVMIX_STATE));
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mv->em_first = 1;
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mv->em_motion = AL_STOPPED;
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mv->em_volume = 1;
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mv->em_ltgt = 1;
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mv->em_rtgt = 1;
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mv->em_cvolL = 1;
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mv->em_cvolR = 1;
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mv->em_dryamt = 0;
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mv->em_wetamt = 0;
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mv->em_lratm = 1;
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mv->em_lratl = 0;
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mv->em_lratm = 1;
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mv->em_lratl = 0;
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mv->em_delta = 0;
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mv->em_segEnd = 0;
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mv->em_pan = 0;
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mv->em_ctrlList = 0;
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mv->em_ctrlTail = 0;
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}
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