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SMS: add TI PSG volume table

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tildearrow 2022-05-26 23:19:27 -05:00
parent 33dc18bac2
commit 905aa1b1a1
3 changed files with 24 additions and 8 deletions
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22
extern/Nuked-PSG/ympsg.c vendored
View file

@ -8,6 +8,10 @@ const float ympsg_vol[17] = {
1.0, 0.772, 0.622, 0.485, 0.382, 0.29, 0.229, 0.174, 0.132, 0.096, 0.072, 0.051, 0.034, 0.019, 0.009, 0.0, -1.059
};
const float tipsg_vol[17] = {
1.0, 0.794, 0.631, 0.501, 0.398, 0.316, 0.251, 0.2, 0.158, 0.126, 0.1, 0.079, 0.063, 0.05, 0.04, 0.0, -1.059
};
static void YMPSG_WriteLatch(ympsg_t *chip)
{
uint8_t data = chip->data;
@ -260,6 +264,10 @@ void YMPSG_Init(ympsg_t *chip, uint8_t real_sn)
YMPSG_SetIC(chip, 1);
chip->noise_tap2 = real_sn ? 13 : 15;
chip->noise_size = real_sn ? 16383 : 32767;
for (i = 0; i < 17; i++)
{
chip->vol_table[i]=real_sn?tipsg_vol[i]:ympsg_vol[i];
}
for (i = 0; i < 16; i++)
{
YMPSG_Clock(chip);
@ -314,22 +322,22 @@ float YMPSG_GetOutput(ympsg_t *chip)
YMPSG_UpdateSample(chip);
if (chip->test & 1)
{
sample += ympsg_vol[chip->volume_out[chip->test >> 1]];
sample += ympsg_vol[16] * 3.f;
sample += chip->vol_table[chip->volume_out[chip->test >> 1]];
sample += chip->vol_table[16] * 3.f;
}
else if (!chip->mute)
{
sample += ympsg_vol[chip->volume_out[0]];
sample += ympsg_vol[chip->volume_out[1]];
sample += ympsg_vol[chip->volume_out[2]];
sample += ympsg_vol[chip->volume_out[3]];
sample += chip->vol_table[chip->volume_out[0]];
sample += chip->vol_table[chip->volume_out[1]];
sample += chip->vol_table[chip->volume_out[2]];
sample += chip->vol_table[chip->volume_out[3]];
}
else
{
for (i = 0; i < 4; i++)
{
if (!((chip->mute>>i) & 1))
sample += ympsg_vol[chip->volume_out[i]];
sample += chip->vol_table[chip->volume_out[i]];
}
}
return sample;

4
extern/Nuked-PSG/ympsg.h vendored
View file

@ -58,6 +58,10 @@ typedef struct {
uint64_t writebuf_lasttime;
ympsg_writebuf writebuf[YMPSG_WRITEBUF_SIZE];
//
float vol_table[17];
uint8_t mute;
} ympsg_t;

6
src/engine/platform/sms.cpp
View file

@ -42,6 +42,7 @@ const char* DivPlatformSMS::getEffectName(unsigned char effect) {
}
void DivPlatformSMS::acquire_nuked(short* bufL, short* bufR, size_t start, size_t len) {
int o=0;
for (size_t h=start; h<start+len; h++) {
if (!writes.empty()) {
unsigned char w=writes.front();
@ -64,7 +65,10 @@ void DivPlatformSMS::acquire_nuked(short* bufL, short* bufR, size_t start, size_
YMPSG_Clock(&sn_nuked);
YMPSG_Clock(&sn_nuked);
YMPSG_Clock(&sn_nuked);
bufL[h]=YMPSG_GetOutput(&sn_nuked)*8192.0;
o=YMPSG_GetOutput(&sn_nuked)*8192.0;
if (o<-32768) o=-32768;
if (o>32767) o=32767;
bufL[h]=o;
/*
for (int i=0; i<4; i++) {
if (isMuted[i]) {