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SNES: more more more work

This commit is contained in:
tildearrow 2022-09-25 02:00:46 -05:00
parent ffa0181704
commit 023bdf2f9a
3 changed files with 6 additions and 6 deletions
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7
src/engine/brrUtils.c
View File

@ -56,15 +56,16 @@ long brrEncode(short* buf, unsigned char* out, long len, long loopStart) {
range=0;
for (int j=0; j<16; j++) {
short s=buf[j];
short s=buf[j]-(buf[j]>>13);
if (s<0) s=-s;
while (range<12 && s>((8<<range)-1)) range++;
}
next[0]=(range<<4)|(filter<<2)|((i+16>=len)?1:0);
next[0]=(range<<4)|(filter<<2)|((i+16>=len)?((loopStart>=0)?3:1):0);
switch (filter) {
case 0:
for (int j=0; j<16; j++) {
o0=buf[j]>>range;
short s=buf[j]-(buf[j]>>13);
o0=s>>range;
if (o0>7) o0=7;
if (o0<-8) o0=-8;
if (range>=12) if (o0<-7) o0=-7;

2
src/engine/brrUtils.h
View File

@ -32,7 +32,7 @@ extern "C" {
* @param buf input data.
* @param out output buffer. shall be at least 9*(len/16) shorts in size.
* @param len input length (should be a multiple of 16. if it isn't, the output will be padded).
* @param loopStart beginning of loop area (may be 0 for no loop). this is used to ensure the respective block has no filter in order to loop properly.
* @param loopStart beginning of loop area (may be -1 for no loop). this is used to ensure the respective block has no filter in order to loop properly.
* @return number of written samples.
*/
long brrEncode(short* buf, unsigned char* out, long len, long loopStart);

3
src/engine/sample.cpp
View File

@ -911,8 +911,7 @@ void DivSample::render() {
}
if (depth!=DIV_SAMPLE_DEPTH_BRR) { // BRR
if (!initInternal(DIV_SAMPLE_DEPTH_BRR,samples)) return;
// TODO: loop point
brrEncode(data16,dataBRR,(samples+15)&(~15),0);
brrEncode(data16,dataBRR,(samples+15)&(~15),loop?loopStart:-1);
}
if (depth!=DIV_SAMPLE_DEPTH_VOX) { // VOX
if (!initInternal(DIV_SAMPLE_DEPTH_VOX,samples)) return;