/* Wait for correct synchronization */
INLINE void update_timing (void)
{
static unsigned long prev=0;
unsigned long curr=gp2x_timer_read_real();
unsigned long interval=(((unsigned long)((frameskip+1)*1000)) * gp2x_timer_read_scale())/((unsigned long)(gp2x_fps));
/* now wait until it's time to update the screen */
if ((curr-prev)<interval) {
/* Auto-Frameskip -> frameskip-- */
if (gp2x_frameskip_auto && frameskip>0)
frameskip--;
if (gp2x_vsync!=-1) {
while ((curr - prev) < interval) {
curr = gp2x_timer_read_real();
}
}
} else if ((curr-prev)>(interval)) {
/* Auto-Frameskip -> frameskip++ */
if (gp2x_frameskip_auto && frameskip<gp2x_frameskip)
frameskip++;
}
prev = gp2x_timer_read_real();
if (gp2x_vsync==1)
gp2x_video_wait_vsync(); /* Wait VSync */
}
/* Update the display. */
void osd_update_display(void)
{
#if defined(GP2X) || defined(PSP)
/* Update Timing */
update_timing();
#endif
#ifdef PSP
/* Wait VSync */
if (gp2x_vsync==1)
gp2x_video_wait_vsync();
#endif
/* Manage the palette */
if (dirtypalette)
update_palette();
/* Update Display */
p_update_display();
#ifdef GP2X
/* Show FPS Counter */
if (gp2x_showfps)
frame_counter();
#endif
#ifdef GP2X
/* Double Buffer Video Flip */
if (gp2x_double_buffer)
gp2x_video_flip();
#endif
}
static void vid_reset_mode(void)
{
int gp2x_mode = 16;
int renderer = get_renderer();
PicoOpt &= ~POPT_ALT_RENDERER;
emu_scan_begin = NULL;
emu_scan_end = NULL;
switch (renderer) {
case RT_16BIT:
PicoDrawSetOutFormat(PDF_RGB555, 0);
PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
break;
case RT_8BIT_ACC:
PicoDrawSetOutFormat(PDF_8BIT, 0);
PicoDrawSetOutBuf(g_screen_ptr, g_screen_width);
gp2x_mode = 8;
break;
case RT_8BIT_FAST:
PicoOpt |= POPT_ALT_RENDERER;
PicoDrawSetOutFormat(PDF_NONE, 0);
vidcpyM2 = vidcpy_m2;
gp2x_mode = 8;
break;
default:
printf("bad renderer\n");
break;
}
if (PicoAHW & PAHW_32X) {
// Wiz 16bit is an exception, uses line rendering due to rotation mess
if (renderer == RT_16BIT && (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX)) {
PicoDrawSetOutFormat(PDF_RGB555, 1);
}
else {
PicoDrawSetOutFormat(PDF_NONE, 0);
}
PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
gp2x_mode = 16;
}
if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) {
if ((PicoAHW & PAHW_32X) || renderer == RT_16BIT) {
emu_scan_begin = EmuScanBegin16_rot;
emu_scan_end = EmuScanEnd16_rot;
}
else if (renderer == RT_8BIT_ACC) {
emu_scan_begin = EmuScanBegin8_rot;
emu_scan_end = EmuScanEnd8_rot;
}
else if (renderer == RT_8BIT_FAST)
vidcpyM2 = vidcpy_m2_rot;
}
PicoDrawSetCallbacks(emu_scan_begin, emu_scan_end);
if (is_16bit_mode())
osd_text = (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) ? osd_text16_rot : emu_osd_text16;
else
osd_text = (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) ? osd_text8_rot : osd_text8;
gp2x_video_wait_vsync();
if (!is_16bit_mode()) {
// setup pal for 8-bit modes
localPal[0xc0] = 0x0000c000; // MCD LEDs
localPal[0xd0] = 0x00c00000;
localPal[0xe0] = 0x00000000; // reserved pixels for OSD
localPal[0xf0] = 0x00ffffff;
gp2x_video_setpalette(localPal, 0x100);
gp2x_memset_all_buffers(0, 0xe0, 320*240);
}
else
gp2x_memset_all_buffers(0, 0, 320*240*2);
if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX)
gp2x_mode = -gp2x_mode;
gp2x_video_changemode(gp2x_mode, Pico.m.pal);
Pico.m.dirtyPal = 1;
PicoOpt &= ~POPT_EN_SOFTSCALE;
if (currentConfig.scaling == EOPT_SCALE_SW)
PicoOpt |= POPT_EN_SOFTSCALE;
// palette converters for 8bit modes
make_local_pal = (PicoAHW & PAHW_SMS) ? make_local_pal_sms : make_local_pal_md;
}
void plat_video_wait_vsync(void)
{
gp2x_video_wait_vsync();
}