static bool isthreadedvsync (void)
{
return isvsync_chipset () <= -2 || isvsync_rtg () < 0;
}
static bool event_check_vsync(void)
{
/* Keep only CPU emulation running while waiting for sync point. */
if (is_syncline == -1) {
if (!isvsync_chipset()) {
events_reset_syncline();
return false;
}
// wait for vblank
audio_finish_pull();
int done = vsync_isdone(NULL);
if (done == -2) {
// if no vsync thread
int vp = target_get_display_scanline(-1);
if (vp < is_syncline_end)
done = 1;
else if (vp > is_syncline_end)
is_syncline_end = vp;
}
if (!done) {
#ifdef WITH_PPC
if (ppc_state) {
uae_ppc_execute_quick();
}
#endif
if (currprefs.cachesize)
pissoff = pissoff_value;
else
pissoff = pissoff_nojit_value;
return true;
}
vsync_clear();
vsync_event_done();
} else if (is_syncline == -2) {
if (!isvsync_chipset()) {
events_reset_syncline();
return false;
}
// wait for vblank or early vblank
audio_finish_pull();
int done = vsync_isdone(NULL);
if (done == -2)
done = 0;
int vp = target_get_display_scanline(-1);
if (vp < 0 || vp >= is_syncline_end)
done = 1;
if (!done) {
#ifdef WITH_PPC
if (ppc_state) {
uae_ppc_execute_quick();
}
#endif
if (currprefs.cachesize)
pissoff = pissoff_value;
else
pissoff = pissoff_nojit_value;
return true;
}
vsync_clear();
vsync_event_done();
} else if (is_syncline == -3) {
if (!isvsync_chipset()) {
events_reset_syncline();
return false;
}
// not vblank
audio_finish_pull();
int vp = target_get_display_scanline(-1);
if (vp <= 0) {
#ifdef WITH_PPC
if (ppc_state) {
uae_ppc_execute_quick();
}
#endif
if (currprefs.cachesize)
pissoff = pissoff_value;
else
pissoff = pissoff_nojit_value;
return true;
}
vsync_clear();
vsync_event_done();
} else if (is_syncline > 0) {
if (!isvsync_chipset()) {
events_reset_syncline();
return false;
}
audio_finish_pull();
// wait for specific scanline
int vp = target_get_display_scanline(-1);
if (vp < 0 || is_syncline > vp) {
#ifdef WITH_PPC
if (ppc_state) {
uae_ppc_execute_check();
}
#endif
if (currprefs.cachesize)
pissoff = pissoff_value;
else
pissoff = pissoff_nojit_value;
return true;
}
vsync_event_done();
}
else if (is_syncline <= -100) {
if (!isvsync_chipset()) {
events_reset_syncline();
return false;
}
audio_finish_pull();
// wait for specific scanline
int vp = target_get_display_scanline(-1);
if (vp < 0 || vp >= (-(is_syncline + 100))) {
#ifdef WITH_PPC
if (ppc_state) {
uae_ppc_execute_check();
}
#endif
if (currprefs.cachesize)
pissoff = pissoff_value;
else
pissoff = pissoff_nojit_value;
return true;
}
vsync_event_done();
} else if (is_syncline == -10) {
// wait is_syncline_end
if (event_wait) {
int rpt = read_processor_time();
int v = rpt - is_syncline_end;
if (v < 0) {
#ifdef WITH_PPC
if (ppc_state) {
uae_ppc_execute_check();
}
#endif
if (currprefs.cachesize)
pissoff = pissoff_value;
else
pissoff = pissoff_nojit_value;
return true;
}
}
events_reset_syncline();
} else if (is_syncline < -10) {
// wait is_syncline_end/vsyncmintime
if (event_wait) {
int rpt = read_processor_time();
int v = rpt - vsyncmintime;
int v2 = rpt - is_syncline_end;
if (v > vsynctimebase || v < -vsynctimebase) {
v = 0;
}
if (v < 0 && v2 < 0) {
#ifdef WITH_PPC
if (ppc_state) {
if (is_syncline == -11) {
uae_ppc_execute_check();
} else {
uae_ppc_execute_quick();
}
}
#endif
if (currprefs.cachesize)
pissoff = pissoff_value;
else
pissoff = pissoff_nojit_value;
return true;
}
}
events_reset_syncline();
}
return false;
}
