otomatalabs/furnace
8
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

ESFM: optimize osc buf

Browse source
This commit is contained in:
tildearrow 2025-03-03 01:45:42 -05:00
parent cf4807b5d0
commit b3b50bdb66
4 changed files with 68 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

24
src/engine/dispatch.h
View file

@ -427,18 +427,20 @@ struct DivSamplePos {
constexpr size_t OSCBUF_PREC=(sizeof(size_t)>=8)?16:16;
constexpr size_t OSCBUF_MASK=(UINTMAX_C(1)<<OSCBUF_PREC)-1;
#define putSampleIKnowWhatIAmDoing(_ob,_pos,_val) \
_ob->data[_pos]=_val;
// the actual output of all DivDispatchOscBuffer instanced runs at 65536Hz.
struct DivDispatchOscBuffer {
size_t rate;
size_t rateMul;
unsigned int needle;
unsigned short readNeedle;
unsigned short followNeedle;
unsigned short lastSample;
//unsigned short lastSample;
bool follow;
short data[65536];
inline void putSample(size_t pos, short val) {
inline void putSample(const size_t pos, const short val) {
unsigned short realPos=((needle+pos*rateMul)>>OSCBUF_PREC);
if (val==-1) {
data[realPos]=0xfffe;
@ -447,6 +449,16 @@ struct DivDispatchOscBuffer {
//lastSample=val;
data[realPos]=val;
}
/*
inline void putSampleIKnowWhatIAmDoing(const unsigned short pos, const short val) {
//unsigned short realPos=((needle+pos*rateMul)>>OSCBUF_PREC);
if (val==-1) {
data[pos]=0xfffe;
return;
}
//lastSample=val;
data[pos]=val;
}*/
inline void begin(unsigned short len) {
size_t calc=(len*rateMul);
unsigned short start=needle>>16;
@ -473,8 +485,7 @@ struct DivDispatchOscBuffer {
memset(data,-1,65536*sizeof(short));
needle=0;
readNeedle=0;
followNeedle=0;
lastSample=0;
//lastSample=0;
}
void setRate(unsigned int r) {
double rateMulD=65536.0/(double)r;
@ -487,8 +498,7 @@ struct DivDispatchOscBuffer {
rateMul(UINTMAX_C(1)<<OSCBUF_PREC),
needle(0),
readNeedle(0),
followNeedle(0),
lastSample(0),
//lastSample(0),
follow(true) {
memset(data,-1,65536*sizeof(short));
}