GPGX_EX void gpgx_advance(void)
{
if (system_hw == SYSTEM_MCD)
system_frame_scd(0);
else if ((system_hw & SYSTEM_PBC) == SYSTEM_MD)
system_frame_gen(0);
else
system_frame_sms(0);
if (bitmap.viewport.changed & 1)
{
bitmap.viewport.changed &= ~1;
update_viewport();
}
nsamples = audio_update(soundbuffer);
}
static void run_emulation(void)
{
int sync;
/* main emulation loop */
while (1)
{
/* emulated system */
if (system_hw == SYSTEM_MCD)
{
/* 16-bit hardware + CD */
while (!ConfigRequested)
{
/* render frame */
system_frame_scd(0);
/* audio/video sync */
sync = NO_SYNC;
while (sync != (SYNC_VIDEO | SYNC_AUDIO))
{
/* update video */
sync |= gx_video_Update();
/* update audio */
sync |= gx_audio_Update();
}
/* check interlaced mode change */
if (bitmap.viewport.changed & 4)
{
/* VSYNC "original" mode */
if (!config.render && config.vsync && (gc_pal == vdp_pal))
{
/* framerate has changed, reinitialize audio timings */
audio_init(SAMPLERATE_48KHZ, get_framerate());
}
/* clear flag */
bitmap.viewport.changed &= ~4;
}
}
}
else if ((system_hw & SYSTEM_PBC) == SYSTEM_MD)
{
/* 16-bit hardware */
while (!ConfigRequested)
{
/* render frame */
system_frame_gen(0);
/* audio/video sync */
sync = NO_SYNC;
while (sync != (SYNC_VIDEO | SYNC_AUDIO))
{
/* update video */
sync |= gx_video_Update();
/* update audio */
sync |= gx_audio_Update();
}
/* check interlaced mode change */
if (bitmap.viewport.changed & 4)
{
/* VSYNC "original" mode */
if (!config.render && config.vsync && (gc_pal == vdp_pal))
{
/* framerate has changed, reinitialize audio timings */
audio_init(SAMPLERATE_48KHZ, get_framerate());
}
/* clear flag */
bitmap.viewport.changed &= ~4;
}
}
}
else
{
/* 8-bit hardware */
while (!ConfigRequested)
{
/* render frame */
system_frame_sms(0);
/* audio/video sync */
sync = NO_SYNC;
while (sync != (SYNC_VIDEO | SYNC_AUDIO))
{
/* update video */
sync |= gx_video_Update();
/* update audio */
sync |= gx_audio_Update();
}
/* check interlaced mode change (PBC mode only) */
if (bitmap.viewport.changed & 4)
{
/* "original" mode */
if (!config.render && config.vsync && (gc_pal == vdp_pal))
{
/* framerate has changed, reinitialize audio timings */
audio_init(SAMPLERATE_48KHZ, get_framerate());
}
/* clear flag */
bitmap.viewport.changed &= ~4;
}
}
}
/* stop video & audio */
gx_audio_Stop();
gx_video_Stop();
#ifdef LOG_TIMING
if (system_hw)
{
FILE *f;
char filename[64];
memset(filename, 0, 64);
strcpy(filename,"timings-");
if (!config.vsync || (config.tv_mode == !vdp_pal))
{
strcat(filename,"no_");
}
else
{
if (gc_pal)
{
strcat(filename,"50hz_");
}
else
{
strcat(filename,"60hz_");
}
}
strcat(filename,"vsync-");
if (vdp_pal)
{
strcat(filename,"pal-");
}
else
{
strcat(filename,"ntsc-");
}
if (config.render == 2)
{
strcat(filename,"prog.txt");
}
else
{
if (!config.render && !interlaced)
{
strcat(filename,"no_");
}
strcat(filename,"int.txt");
}
f = fopen(filename,"a");
if (f != NULL)
{
int i;
u32 min,max;
double total = 0;
double nsamples = 0;
if (delta_time[LOGSIZE - 1] != 0)
{
frame_cnt = LOGSIZE;
}
min = max = delta_time[0];
for (i=0; i<frame_cnt; i++)
{
fprintf(f,"%d ns - %d samples (%5.8f samples/sec)\n", delta_time[i], delta_samp[i], 1000000000.0*(double)delta_samp[i]/(double)delta_time[i]/4.0);
total += delta_time[i];
nsamples += delta_samp[i] / 4.0;
if (min > delta_time[i]) min = delta_time[i];
if (max < delta_time[i]) max = delta_time[i];
}
fprintf(f,"\n");
fprintf(f,"min = %d ns\n", min);
fprintf(f,"max = %d ns\n", max);
fprintf(f,"avg = %8.5f ns (%5.8f samples/sec, %5.8f samples/frame)\n\n\n", total/(double)i, nsamples/total*1000000000.0, nsamples/(double)i);
fclose(f);
}
}
memset(delta_time,0,LOGSIZE);
memset(delta_samp,0,LOGSIZE);
frame_cnt = prevtime = 0;
#endif
/* show menu */
ConfigRequested = 0;
mainmenu();
/* restart video & audio */
gx_video_Start();
gx_audio_Start();
}
}
