MCPcopy Create free account
hub / github.com/TASEmulators/fceux / emu_speedmode

Function emu_speedmode

src/lua-engine.cpp:430–456  ·  view source on GitHub ↗

emu.speedmode(string mode) Takes control of the emulation speed of the system. Normal is normal speed (60fps, 50 for PAL), nothrottle disables speed control but renders every frame, turbo renders only a few frames in order to speed up emulation, maximum renders no frames TODO: better enforcement, done in the same way as basicbot...

Source from the content-addressed store, hash-verified

428// maximum renders no frames
429// TODO: better enforcement, done in the same way as basicbot...
430static int emu_speedmode(lua_State *L) {
431 const char *mode = luaL_checkstring(L,1);
432
433 if (strcasecmp(mode, "normal")==0) {
434 speedmode = SPEED_NORMAL;
435 } else if (strcasecmp(mode, "nothrottle")==0) {
436 speedmode = SPEED_NOTHROTTLE;
437 } else if (strcasecmp(mode, "turbo")==0) {
438 speedmode = SPEED_TURBO;
439 } else if (strcasecmp(mode, "maximum")==0) {
440 speedmode = SPEED_MAXIMUM;
441 } else
442 luaL_error(L, "Invalid mode %s to emu.speedmode",mode);
443
444 //printf("new speed mode: %d\n", speedmode);
445 if (speedmode == SPEED_NORMAL)
446 {
447 FCEUD_SetEmulationSpeed(EMUSPEED_NORMAL);
448 FCEUD_TurboOff();
449 }
450 else if (speedmode == SPEED_TURBO) //adelikat: Making turbo actually use turbo.
451 FCEUD_TurboOn(); //Turbo and max speed are two different results. Turbo employs frame skipping and sound bypassing if mute turbo option is enabled.
452 //This makes it faster but with frame skipping. Therefore, maximum is still a useful feature, in case the user is recording an avi or making screenshots (or something else that needs all frames)
453 else
454 FCEUD_SetEmulationSpeed(EMUSPEED_FASTEST); //TODO: Make nothrottle turn off throttle, or remove the option
455 return 0;
456}
457
458// emu.poweron()
459//

Callers

nothing calls this directly

Calls 4

luaL_errorFunction · 0.85
FCEUD_SetEmulationSpeedFunction · 0.50
FCEUD_TurboOffFunction · 0.50
FCEUD_TurboOnFunction · 0.50

Tested by

no test coverage detected