print_n_panic/Microtransactions64
0
0
Fork 0
mirror of https://github.com/Print-and-Panic/Microtransactions64.git synced 2026-01-21 10:17:19 -08:00
Code Issues Packages Projects Releases Wiki Activity

More optimization

Browse Source
This commit is contained in:
gheskett
2021-08-03 21:29:06 -05:00
parent 4b51444250
commit 15f29f3814
1 changed files with 20 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
src/audio/synthesis.c
View File

@@ -126,24 +126,20 @@ inline s16 reverb_sample_left(s32 inSample) {
s32 j = 0;
u8 k = 0;
s32 outTmp = 0;
s32 tmpCarryover = 0;
s32 tmpCarryover = ((tmpBuf[NUM_ALLPASS-1] * gReverbRevIndex) / 256) + inSample;
for (i = 0; i < NUM_ALLPASS; ++i, ++j) {
for (; i < NUM_ALLPASS; ++i, ++j) {
tmpBuf[i] = delayBufs[0][i][allpassIdx[0][i]];
if (j == 2) {
j -= 3;
j = -1;
outTmp += (tmpBuf[i] * reverbMults[0][k++]) / 256;
delayBufs[0][i][allpassIdx[0][i]] = tmpCarryover;
if (i != NUM_ALLPASS - 1)
tmpCarryover = (tmpBuf[i] * gReverbRevIndex) / 256;
}
else {
if (i == 0)
tmpCarryover = ((tmpBuf[NUM_ALLPASS-1] * gReverbRevIndex) / 256) + inSample;
delayBufs[0][i][allpassIdx[0][i]] = (tmpBuf[i] * (-gReverbGainIndex) / 256) + tmpCarryover;
delayBufs[0][i][allpassIdx[0][i]] = (tmpBuf[i] * (-gReverbGainIndex)) / 256 + tmpCarryover;
tmpCarryover = (delayBufs[0][i][allpassIdx[0][i]] * gReverbGainIndex) / 256 + tmpBuf[i];
}
@@ -159,22 +155,19 @@ inline s16 reverb_sample_right(s32 inSample) {
s32 j = 0;
u8 k = 0;
s32 outTmp = 0;
s32 tmpCarryover = 0;
s32 tmpCarryover = ((tmpBuf[NUM_ALLPASS-1] * gReverbRevIndex) / 256);
for (i = 0; i < NUM_ALLPASS; ++i, ++j) {
for (; i < NUM_ALLPASS; ++i, ++j) {
tmpBuf[i] = delayBufs[1][i][allpassIdx[1][i]];
if (j == 2) {
j -= 3;
j = -1;
outTmp += (tmpBuf[i] * reverbMults[1][k++]) / 256;
delayBufs[1][i][allpassIdx[1][i]] = tmpCarryover;
if (i != NUM_ALLPASS - 1)
tmpCarryover = (tmpBuf[i] * gReverbRevIndex) / 256;
}
else {
if (i == 0)
tmpCarryover = ((tmpBuf[NUM_ALLPASS-1] * gReverbRevIndex) / 256);
delayBufs[1][i][allpassIdx[1][i]] = (tmpBuf[i] * (-gReverbGainIndex)) / 256 + tmpCarryover;
if (i == 6)
@@ -297,10 +290,10 @@ void prepare_reverb_ring_buffer(s32 chunkLen, u32 updateIndex) {
}
}
#ifdef BETTER_REVERB
if (consoleBetterReverb) {
else if (consoleBetterReverb) {
item = &gSynthesisReverb.items[gSynthesisReverb.curFrame][updateIndex];
osInvalDCache(item->toDownsampleLeft, DEFAULT_LEN_2CH);
if (gReverbDownsampleRate != 1) {
osInvalDCache(item->toDownsampleLeft, DEFAULT_LEN_2CH);
for (srcPos = 0, dstPos = item->startPos; dstPos < item->lengthA / 2 + item->startPos;
srcPos += gReverbDownsampleRate, dstPos++) {
gSynthesisReverb.ringBuffer.left[dstPos] = reverb_sample_left(item->toDownsampleLeft[srcPos]);
@@ -311,6 +304,17 @@ void prepare_reverb_ring_buffer(s32 chunkLen, u32 updateIndex) {
gSynthesisReverb.ringBuffer.right[dstPos] = reverb_sample_right(item->toDownsampleRight[srcPos]);
}
}
else { // Too slow for practical use?
for (srcPos = 0, dstPos = item->startPos; dstPos < item->lengthA / 2 + item->startPos;
srcPos += gReverbDownsampleRate, dstPos++) {
gSynthesisReverb.ringBuffer.left[dstPos] = reverb_sample_left(gSynthesisReverb.ringBuffer.left[dstPos]);
gSynthesisReverb.ringBuffer.right[dstPos] = reverb_sample_right(gSynthesisReverb.ringBuffer.right[dstPos]);
}
for (dstPos = 0; dstPos < item->lengthB / 2; srcPos += gReverbDownsampleRate, dstPos++) {
gSynthesisReverb.ringBuffer.left[dstPos] = reverb_sample_left(gSynthesisReverb.ringBuffer.left[dstPos]);
gSynthesisReverb.ringBuffer.right[dstPos] = reverb_sample_right(gSynthesisReverb.ringBuffer.right[dstPos]);
}
}
}
#endif
item = &gSynthesisReverb.items[gSynthesisReverb.curFrame][updateIndex];