static int DrvFrame()
{
if (DrvReset) {
DrvDoReset();
}
m6502Open(0);
m6502Run(4000000 / 60);
m6502SetIRQ(M6502_IRQ);
m6502Close();
if (pBurnSoundOut) {
int nSample;
int nSegmentLength = nBurnSoundLen;
short* pSoundBuf = pBurnSoundOut;
if (nSegmentLength) {
AY8910Update(0, &pAY8910Buffer[0], nSegmentLength);
for (int n = 0; n < nSegmentLength; n++) {
nSample = pAY8910Buffer[0][n];
nSample += pAY8910Buffer[1][n];
nSample += pAY8910Buffer[2][n];
nSample /= 4;
if (nSample < -32768) {
nSample = -32768;
} else {
if (nSample > 32767) {
nSample = 32767;
}
}
pSoundBuf[(n << 1) + 0] = nSample;
pSoundBuf[(n << 1) + 1] = nSample;
}
}
}
if (pBurnDraw) {
DrvDraw();
}
return 0;
}
static void AY8910Render(INT32 nSegmentLength)
{
#if defined FBA_DEBUG
if (!DebugSnd_YM2610Initted) bprintf(PRINT_ERROR, _T("BurnYM2610 AY8910Render called without init\n"));
#endif
if (nAY8910Position >= nSegmentLength) {
return;
}
nSegmentLength -= nAY8910Position;
pYM2610Buffer[2] = pBuffer + 2 * 4096 + 4 + nAY8910Position;
pYM2610Buffer[3] = pBuffer + 3 * 4096 + 4 + nAY8910Position;
pYM2610Buffer[4] = pBuffer + 4 * 4096 + 4 + nAY8910Position;
AY8910Update(0, &pYM2610Buffer[2], nSegmentLength);
nAY8910Position += nSegmentLength;
}
void AY8910Render(INT16** buffer, INT16* dest, INT32 length, INT32 bAddSignal)
{
#if defined FBA_DEBUG
#ifdef __GNUC__
if (!DebugSnd_AY8910Initted) bprintf(PRINT_ERROR, _T("AY8910Render called without init\n"));
if (num >= 7) bprintf(PRINT_ERROR, _T("AY8910Render called with invalid number of chips %i (max is 6)\n"), num);
#endif
#endif
INT32 i;
INT16 *buf0 = buffer[0];
INT16 *buf1 = buffer[1];
INT16 *buf2 = buffer[2];
INT16 *buf3, *buf4, *buf5, *buf6, *buf7, *buf8, *buf9, *buf10, *buf11, *buf12, *buf13, *buf14, *buf15, *buf16, *buf17;
INT32 n;
for (i = 0; i < num; i++) {
AY8910Update(i, buffer + (i * 3), length);
}
if (num >= 2) {
buf3 = buffer[3];
buf4 = buffer[4];
buf5 = buffer[5];
}
if (num >= 3) {
buf6 = buffer[6];
buf7 = buffer[7];
buf8 = buffer[8];
}
if (num >= 4) {
buf9 = buffer[9];
buf10 = buffer[10];
buf11 = buffer[11];
}
if (num >= 5) {
buf12 = buffer[12];
buf13 = buffer[13];
buf14 = buffer[14];
}
if (num >= 6) {
buf15 = buffer[15];
buf16 = buffer[16];
buf17 = buffer[17];
}
for (n = 0; n < length; n++) {
INT32 nLeftSample = 0, nRightSample = 0;
AY8910_ADD_SOUND(BURN_SND_AY8910_ROUTE_1, buf0)
AY8910_ADD_SOUND(BURN_SND_AY8910_ROUTE_2, buf1)
AY8910_ADD_SOUND(BURN_SND_AY8910_ROUTE_3, buf2)
if (num >= 2) {
AY8910_ADD_SOUND(3 + BURN_SND_AY8910_ROUTE_1, buf3)
AY8910_ADD_SOUND(3 + BURN_SND_AY8910_ROUTE_2, buf4)
AY8910_ADD_SOUND(3 + BURN_SND_AY8910_ROUTE_3, buf5)
}
if (num >= 3) {
AY8910_ADD_SOUND(6 + BURN_SND_AY8910_ROUTE_1, buf6)
AY8910_ADD_SOUND(6 + BURN_SND_AY8910_ROUTE_2, buf7)
AY8910_ADD_SOUND(6 + BURN_SND_AY8910_ROUTE_3, buf8)
}
if (num >= 4) {
AY8910_ADD_SOUND(9 + BURN_SND_AY8910_ROUTE_1, buf9)
AY8910_ADD_SOUND(9 + BURN_SND_AY8910_ROUTE_2, buf10)
AY8910_ADD_SOUND(9 + BURN_SND_AY8910_ROUTE_3, buf11)
}
if (num >= 5) {
AY8910_ADD_SOUND(12 + BURN_SND_AY8910_ROUTE_1, buf12)
AY8910_ADD_SOUND(12 + BURN_SND_AY8910_ROUTE_2, buf13)
AY8910_ADD_SOUND(12 + BURN_SND_AY8910_ROUTE_3, buf14)
}
if (num >= 6) {
AY8910_ADD_SOUND(15 + BURN_SND_AY8910_ROUTE_1, buf15)
AY8910_ADD_SOUND(15 + BURN_SND_AY8910_ROUTE_2, buf16)
AY8910_ADD_SOUND(15 + BURN_SND_AY8910_ROUTE_3, buf17)
}
nLeftSample = BURN_SND_CLIP(nLeftSample);
nRightSample = BURN_SND_CLIP(nRightSample);
if (bAddSignal) {
dest[(n << 1) + 0] += nLeftSample;
dest[(n << 1) + 1] += nRightSample;
} else {
dest[(n << 1) + 0] = nLeftSample;
dest[(n << 1) + 1] = nRightSample;
}
}
}
