void do_keypad()
{
int bVert = !options.rotate && (BurnDrvGetFlags() & BDF_ORIENTATION_VERTICAL);
FBA_KEYPAD[0] = 0;
FBA_KEYPAD[1] = 0;
FBA_KEYPAD[2] = 0;
FBA_KEYPAD[3] = 0;
ServiceRequest = 0;
P1P2Start = 0;
sdl_input_read(false);
for (int it = 0; it < autofire_count; it++) {
if (autofire_state[it].state == 0 && (keypc & autofire_state[it].keypc)) {
autofire_state[it].state = 1;
}
if (autofire_state[it].state != 0 && !(keypc & autofire_state[it].keypc)) {
autofire_state[it].state = 0;
}
}
sdl_input_read(true);
// process redefinable keypresses
if (keypad & KEYPAD_UP) FBA_KEYPAD[0] |= bVert ? KEYPAD_LEFT : KEYPAD_UP;
if (keypad & KEYPAD_DOWN) FBA_KEYPAD[0] |= bVert ? KEYPAD_RIGHT : KEYPAD_DOWN;
if (keypad & KEYPAD_LEFT) FBA_KEYPAD[0] |= bVert ? KEYPAD_DOWN : KEYPAD_LEFT;
if (keypad & KEYPAD_RIGHT) FBA_KEYPAD[0] |= bVert ? KEYPAD_UP : KEYPAD_RIGHT;
if (keypad & KEYPAD_COIN) FBA_KEYPAD[0] |= KEYPAD_COIN;
if (keypad & KEYPAD_START) FBA_KEYPAD[0] |= KEYPAD_START;
if (keypad & KEYPAD_FIRE1) FBA_KEYPAD[0] |= KEYPAD_FIRE1; // A
if (keypad & KEYPAD_FIRE2) FBA_KEYPAD[0] |= KEYPAD_FIRE2; // B
if (keypad & KEYPAD_FIRE3) FBA_KEYPAD[0] |= KEYPAD_FIRE3; // X
if (keypad & KEYPAD_FIRE4) FBA_KEYPAD[0] |= KEYPAD_FIRE4; // Y
if (keypad & KEYPAD_FIRE5) FBA_KEYPAD[0] |= KEYPAD_FIRE5; // L
if (keypad & KEYPAD_FIRE6) FBA_KEYPAD[0] |= KEYPAD_FIRE6; // R
// process non-redefinable keypresses
if (keypc & BUTTON_QT) {
GameLooping = false;
keypc = keypad = 0;
}
if (keypc & BUTTON_MENU) {
keypc = keypad = 0;
SndPause(1);
gui_Run();
SndPause(0);
}
if (keypc & BUTTON_PAUSE) {
bPauseOn = !bPauseOn;
SndPause(bPauseOn);
keypc &= ~BUTTON_PAUSE;
}
if(!bPauseOn) { // savestate fails inside pause
if (keypc & BUTTON_QSAVE) {
StatedSave(nSavestateSlot);
keypc &= ~BUTTON_QSAVE;
}
if (keypc & BUTTON_QLOAD) {
StatedLoad(nSavestateSlot);
keypc &= ~BUTTON_QLOAD;
bPauseOn = 0;
}
}
if ((keypc & BUTTON_SL) && (keypc & BUTTON_SR)) {
if (keypc & BUTTON_Y) {
ChangeFrameskip();
keypc &= ~BUTTON_Y;
} else if (keypc & BUTTON_B && !bPauseOn) {
StatedSave(nSavestateSlot);
keypc &= ~BUTTON_B;
} else if (keypc & BUTTON_A && !bPauseOn) {
StatedLoad(nSavestateSlot);
keypc &= ~BUTTON_A;
bPauseOn = 0;
} else if (keypc & BUTTON_START) {
keypc = keypad = 0;
SndPause(1);
gui_Run();
SndPause(0);
} else if (keypc & BUTTON_SELECT) ServiceRequest = 1;
}
else if ((keypc & BUTTON_START) && (keypc & BUTTON_SELECT)) P1P2Start = 1;
}
int main()
{
static char load_filename[512];
char *romname = NULL;
float audioStart; // this is a float to count the half sample per frame needed ho have precise timing
u32 audioTarget, audioEnd;
srvInit();
aptInit();
hidInit();
APT_CheckNew3DS(&isN3DS);
if(isN3DS)
osSetSpeedupEnable(true);
get_config_path();
sprintf(savename, "%s/Handy3ds.cfg", config_base_path); // using savename char buffer to save memory
do_config(savename);
handy_3ds_video_init();
sprintf(bios_path_and_name, "%s/%s", config_bios_path, "lynxboot.img");
// Call filebrowser
if(gui_LoadFile(load_filename)!= -1) {
romname = (char *)&load_filename;
do {
hidScanInput();
} while (hidKeysHeld());
} else {
handy_3ds_quit();
}
// Primary initalise of Handy - should be called AFTER _Init() but BEFORE handy_3ds_video_setup()
handy_3ds_core_init(romname);
// Initialise Handy 3ds video
handy_3ds_video_setup(1, 0, 0, 32, LynxScale, 0, 0);
// Initialise Handy 3ds audio
printf("\nInitialising 3DS Audio... ");
gAudioEnabled = handy_3ds_audio_init();
printf("[DONE]\n");
// Setup of Handy Core video
handy_3ds_video_reinit(32);
printf("Starting Lynx Emulation...\n");
bool touched = false;
audioStart = gAudioBufferPointer; // both should be 0 at this point
// initialize timers
u64 tickcurr, syncticknext,synctickres;
u64 fpsticknext,fpstickres;
int frameSyncPeriod;
if(isN3DS)
frameSyncPeriod = 1;
else
frameSyncPeriod = 12;
fpstickres= TICKS_PER_SEC;
synctickres = TICKS_PER_FRAME * frameSyncPeriod; // on o3ds the sync is every 12 frame, i.e. 5 times every sec
tickcurr=svcGetSystemTick();
fpsticknext = tickcurr + fpstickres;
syncticknext = tickcurr + synctickres;
int fpscnt = 0, synccnt = 0;
gThrottleMaxPercentage = isN3DS?100:50; // !! TO DO: check if 50 is the best value.
while(!emulation)
{
// Initialise Handy button events
int OldKeyMask, KeyMask = mpLynx->GetButtonData();
OldKeyMask = KeyMask;
// Getting events for keyboard and/or joypad handling
hidScanInput();
if (hidKeysHeld() & KEY_TOUCH) {
touched = true;
} else {
if (touched) {
handy_3ds_audio_pause();
gui_Run();
KeyMask = 0;
touched = false;
// audioStart = gAudioBufferPointer;
do {
hidScanInput();
} while (hidKeysHeld());
gThrottleMaxPercentage = isN3DS?100:50; // !! Loading a savestate overrides this value, so we force it again exiting menu
fpscnt = 0;
synccnt = 0;
tickcurr=svcGetSystemTick();
fpsticknext = tickcurr + fpstickres;
syncticknext = tickcurr + synctickres;
} else {
touched = false;
}
}
KeyMask = handy_3ds_on_key_down(hidKeysHeld(), KeyMask);
// Check if there are handling events and then update the Handy button events.
if (OldKeyMask != KeyMask)
mpLynx->SetButtonData(KeyMask);
// Update TimerCount
gTimerCount++;
while( handy_3ds_update() )
{
//!!
hidScanInput();
u32 held = hidKeysHeld();
if (held & KEY_SELECT) {
// handy_3ds_video_quit();
// handy_3ds_audio_quit();
// exit(EXIT_SUCCESS); //break;
touched = true; // enter menu
}
//!!
if(!gSystemHalt)
{
if (!handy_3ds_audio_getstate()) {
audioStart=0.0; // reset counter
gAudioBufferPointer = 0; // reset buffer. really not needed since we set it to 0 in handy_3ds_audio_pause().
}
// increase sound samples counter - 367,5 samples per frame at 60 fps
audioEnd = (int)(audioStart + 367.5) % HANDY_AUDIO_BUFFER_SIZE;
// filling 1 half of the buffer, roughly enough for slow frames on o3DS without risk of buffer head to reach the tail during the 10 frames before resync.
audioTarget = (int)(audioStart + HANDY_AUDIO_BUFFER_SIZE/2.1) % HANDY_AUDIO_BUFFER_SIZE;
if (audioTarget>audioStart)
while (gAudioBufferPointer<audioTarget) mpLynx->Update();
else
while ((gAudioBufferPointer>audioStart)||(gAudioBufferPointer<audioTarget)) mpLynx->Update();
if(Handy_cfg_Throttle && Handy_cfg_Sound && gAudioEnabled) {
if (handy_3ds_audio_getstate())
handy_3ds_audio_callback(audioStart, (int)(audioTarget-audioStart));
else
handy_3ds_audio_start(22050, audioStart);
}
audioStart = audioEnd;
}
else
{
printf("gSystemHalt : %ld\n", gSystemHalt);
gTimerCount++;
}
system_checkPolls();
}
// Timing
fpscnt++;
synccnt++;
if (Handy_cfg_Throttle) {
if (synccnt==frameSyncPeriod){
svcSleepThread((syncticknext - svcGetSystemTick()) / TICKS_PER_NSEC);
}
}
tickcurr=svcGetSystemTick();
if (tickcurr >= syncticknext) {
syncticknext += synctickres;
synccnt = 0;
}
if (tickcurr >= fpsticknext) {
fpsticknext += fpstickres;
fps_counter = fpscnt;
fpscnt = 0;
}
} // while(!emulation)
osSetSpeedupEnable(true);
return 0;
}
