void sn764xx_stream_update(void *_info, stream_sample_t **outputs, int samples)
{
sn764xx_state* info = (sn764xx_state*)_info;
switch(info->EMU_CORE)
{
case EC_MAME:
SN76496Update(info->chip, outputs, samples);
break;
#ifdef ENABLE_ALL_CORES
case EC_MAXIM:
SN76489_Update((SN76489_Context*)info->chip, outputs, samples);
break;
#endif
}
}
void sn764xx_stream_update(UINT8 ChipID, stream_sample_t **outputs, int samples)
{
sn764xx_state *info = &SN764xxData[ChipID];
switch(EMU_CORE)
{
case EC_MAME:
SN76496Update(info->chip, outputs, samples);
break;
#ifdef ENABLE_ALL_CORES
case EC_MAXIM:
SN76489_Update((SN76489_Context*)info->chip, outputs, samples);
break;
#endif
}
}
/* Run the virtual console emulation for one frame */
void sms_frame(int skip_render)
{
/* Take care of hard resets */
if(input.system & INPUT_HARD_RESET)
{
system_reset();
}
/* Debounce pause key */
if(input.system & INPUT_PAUSE)
{
if(!sms.paused)
{
sms.paused = 1;
z80_set_nmi_line(ASSERT_LINE);
z80_set_nmi_line(CLEAR_LINE);
}
}
else
{
sms.paused = 0;
}
if(snd.log) snd.callback(0x00);
for(vdp.line = 0; vdp.line < 262; vdp.line += 1)
{
/* Handle VDP line events */
vdp_run();
/* Draw the current frame */
if(!skip_render) render_line(vdp.line);
/* Run the Z80 for a line */
z80_execute(227);
}
/* Update the emulated sound stream */
if(snd.enabled)
{
int count;
SN76496Update(0, snd.psg_buffer, snd.bufsize, sms.psg_mask);
if(sms.use_fm)
{
int i;
for(i = 0; i < snd.bufsize; i++)
{
snd.fm_buffer[i] = OPLL_calc(opll);
}
}
for(count = 0; count < snd.bufsize; count += 1)
{
signed short left = 0;
signed short right = 0;
left = right = snd.fm_buffer[count];
left += snd.psg_buffer[0][count];
right += snd.psg_buffer[1][count];
snd.buffer[0][count] = left;
snd.buffer[1][count] = right;
}
}
}
/* Run the virtual console emulation for one frame */
void system_frame(int skip_render)
{
static int iline_table[] = {0xC0, 0xE0, 0xF0};
int lpf = (sms.display == DISPLAY_NTSC) ? 262 : 313;
int iline, z80cnt = 0;;
INT32 nSoundBufferPos = 0;
/* Debounce pause key */
if(input.system & INPUT_PAUSE)
{
if(!sms.paused)
{
sms.paused = 1;
ZetNmi();
}
}
else
{
sms.paused = 0;
}
ZetNewFrame();
text_counter = 0;
/* End of frame, parse sprites for line 0 on line 261 (VCount=$FF) */
if(vdp.mode <= 7)
parse_line(0);
for(vdp.line = 0; vdp.line < lpf;)
{
iline = iline_table[vdp.extended];
z80cnt = 0;
if(!skip_render)
{
render_line(vdp.line);
}
if(vdp.line <= iline)
{
vdp.left -= 1;
if(vdp.left == -1)
{
vdp.left = vdp.reg[0x0A];
vdp.hint_pending = 1;
if(vdp.reg[0x00] & 0x10)
{
if (!(ZetTotalCycles() % CYCLES_PER_LINE)) {
ZetRun(1);
z80cnt++;
}
ZetSetIRQLine(0, CPU_IRQSTATUS_ACK);
}
}
}
else
{
vdp.left = vdp.reg[0x0A];
}
ZetRun(228 - z80cnt);
if(vdp.line == iline)
{
vdp.status |= 0x80;
vdp.vint_pending = 1;
if(vdp.reg[0x01] & 0x20)
{
ZetSetIRQLine(0, CPU_IRQSTATUS_ACK);
}
}
// Render Sound Segment
if (pBurnSoundOut) {
INT32 nSegmentLength = nBurnSoundLen / lpf;
INT16* pSoundBuf = pBurnSoundOut + (nSoundBufferPos << 1);
SN76496Update(0, pSoundBuf, nSegmentLength);
nSoundBufferPos += nSegmentLength;
}
++vdp.line;
if(vdp.mode <= 7)
parse_line(vdp.line);
}
// Make sure the buffer is entirely filled.
if (pBurnSoundOut) {
INT32 nSegmentLength = nBurnSoundLen - nSoundBufferPos;
INT16* pSoundBuf = pBurnSoundOut + (nSoundBufferPos << 1);
if (nSegmentLength) {
SN76496Update(0, pSoundBuf, nSegmentLength);
}
}
}
