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version 1.3, 2003/12/08 00:55:33
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version 1.7, 2005/05/13 05:47:25
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Line 6
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Line 6
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| ADPCMCFG adpcmcfg; |
ADPCMCFG adpcmcfg; |
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| void adpcm_initialize(UINT rate) { |
void adpcm_initialize(UINT rate) { |
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| adpcmcfg.rate = rate; |
adpcmcfg.rate = rate; |
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Line 20 void adpcm_setvol(UINT vol) {
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Line 19 void adpcm_setvol(UINT vol) {
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| void adpcm_reset(ADPCM ad) { |
void adpcm_reset(ADPCM ad) { |
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| ZeroMemory(ad, sizeof(_ADPCM)); |
ZeroMemory(ad, sizeof(_ADPCM)); |
| ad->mask = 0; // (BYTE)~0x1c; |
ad->mask = 0; // (UINT8)~0x1c; |
| ad->delta = 128; |
ad->delta = 127; |
| STOREINTELWORD(ad->reg.stop, 0x0002); |
STOREINTELWORD(ad->reg.stop, 0x0002); |
| STOREINTELWORD(ad->reg.limit, 0xffff); |
STOREINTELWORD(ad->reg.limit, 0xffff); |
| ad->stop = 0x000060; |
ad->stop = 0x000060; |
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Line 46 void adpcm_update(ADPCM ad) {
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Line 45 void adpcm_update(ADPCM ad) {
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| ad->level = (ad->reg.level * adpcmcfg.vol) >> 4; |
ad->level = (ad->reg.level * adpcmcfg.vol) >> 4; |
| } |
} |
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| void adpcm_setreg(ADPCM ad, REG8 reg, REG8 value) { |
void adpcm_setreg(ADPCM ad, UINT reg, REG8 value) { |
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| UINT32 addr; |
UINT32 addr; |
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| ((BYTE *)(&ad->reg))[reg] = value; |
sound_sync(); |
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((UINT8 *)(&ad->reg))[reg] = value; |
| switch(reg) { |
switch(reg) { |
| case 0x00: // control1 |
case 0x00: // control1 |
| if ((value & 0x80) && (!ad->play)) { |
if ((value & 0x80) && (!ad->play)) { |
| ad->play = 0x20; |
ad->play = 0x20; |
| ad->pos = ad->start; |
ad->pos = ad->start; |
| ad->samp = 0; |
ad->samp = 0; |
| ad->delta = 128; |
ad->delta = 127; |
| ad->remain = 0; |
ad->remain = 0; |
| } |
} |
| if (value & 1) { |
if (value & 1) { |
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