static int luaCB_set_tv96_direct( lua_State* L )
{
shooting_set_tv96_direct(luaL_checknumber( L, 1 ), SET_LATER);
return 0;
}
void shooting_set_autoiso(int iso_mode)
{
short max_iso;
if (iso_mode<=0)
shooting_recalc_conf_autoiso_values();
switch (iso_mode)
{
case -1: // ISO HI
//max_iso = conf.autoiso_max_iso_hi*10;
max_iso = conf.autoiso_max_iso_hi_real;
break;
case 0: // ISO AUTO
//max_iso = conf.autoiso_max_iso_auto*10;
max_iso = conf.autoiso_max_iso_auto_real;
break;
default:
return;
}
// TODO also long shutter ?
if (camera_info.state.mode_shooting==MODE_M || camera_info.state.mode_shooting==MODE_TV || camera_info.state.mode_shooting==MODE_STITCH)
return; //Only operate outside of M and Tv
int ev_overexp = 0;
if (conf.overexp_ev_enum)
{
// No shoot_histogram exist here because no future shot exist yet :)
int total = live_histogram_read_y(live_histogram_proc);
// step 32 is 1/3ev for tv96
if (live_histogram_get_range(total,255-conf.autoiso2_over,255) >= conf.overexp_threshold)
ev_overexp = conf.overexp_ev_enum << 5;
}
float current_shutter = shooting_get_shutter_speed_from_tv96(shooting_get_tv96());
short current_iso = shooting_get_iso_real();
short min_shutter = shutter1_values[conf.autoiso_shutter_enum];
if (min_shutter == 0)
{
short IS_factor = (shooting_get_is_mode()<=1)?conf.autoiso_is_factor:1;
min_shutter = get_focal_length(lens_get_zoom_point())*conf.autoiso_user_factor / (IS_factor*1000);
//min_shutter is NOT 1/Xs but optimized for the calculation.
if (shutter2_values[conf.autoiso2_shutter_enum])
shooting_calc_autoiso_coef( min_shutter );
}
short target_iso = current_iso * min_shutter * current_shutter;
short min_iso = conf.autoiso_min_iso_real;
if (target_iso > max_iso)
{
ev_overexp=0;
// AutoISO2 if
// it is turned on (C2!=0.0)
// and it has valid iso2/shutter2 ( C2<0)
// and non-IsoHI mode
if ( !iso_mode && conf.autoiso2_coef < 0.0 )
{
target_iso = (max_iso - min_shutter*conf.autoiso2_coef) / ( 1.0 - conf.autoiso2_coef / (current_shutter * current_iso) );
if ( target_iso > conf.autoiso2_max_iso_auto_real )
target_iso = conf.autoiso2_max_iso_auto_real;
}
else
{
target_iso = max_iso;
}
}
else if (target_iso < min_iso)
{
target_iso = min_iso;
}
float target_shutter = current_shutter * current_iso / target_iso;
if (target_shutter > 0)
shooting_set_tv96_direct(shooting_get_tv96_from_shutter_speed(target_shutter) + ev_overexp, SET_NOW);
shooting_set_iso_real(target_iso, SET_NOW);
}
