/** Fix negative slopes by adjusting light output around a level */
private void fixNegativeSlopes(int n_lvl) {
int output = table[n_lvl].output;
for (int i = 0; i < table.length; i++) {
BrightnessLevel lvl = table[i];
if (i < n_lvl && lvl.output > output) lvl.output = output;
if (i > n_lvl && lvl.output < output) lvl.output = output;
}
}
/** Adjust a brightness table with DMS_BRIGHT_LOW feedback */
private void feedbackLow(int photo, int output) {
int light = 0; // highest light output so far
for (BrightnessLevel lvl : table) {
light = Math.max(lvl.output, light);
if (lvl.pc_down <= photo && photo <= lvl.pc_up) light = Math.max(light, output + ADJ_OUTPUT);
lvl.output = Math.min(light, MAX_OUTPUT);
}
}
/** Adjust a brightness table with DMS_BRIGHT_HIGH feedback */
private void feedbackHigh(int photo, int output) {
int light = MAX_OUTPUT; // lowest light output so far
for (int i = table.length - 1; i >= 0; i--) {
BrightnessLevel lvl = table[i];
light = Math.min(lvl.output, light);
if (lvl.pc_down <= photo && photo <= lvl.pc_up) light = Math.min(light, output - ADJ_OUTPUT);
lvl.output = Math.max(light, 0);
}
}
/** Adjust a brightness table with DMS_BRIGHT_GOOD feedback */
private void feedbackGood(int photo, int output) {
final int max_photo = getMaxPhotocell();
for (int i = 0; i < table.length; i++) {
BrightnessLevel lvl = table[i];
if (lvl.pc_down <= photo && photo <= lvl.pc_up) {
int prev = 0;
int next = max_photo;
if (i > 0) prev = table[i - 1].pc_up;
if (i < table.length - 1) next = table[i + 1].pc_down;
if (prev < photo && photo < next) {
lvl.output = output;
fixNegativeSlopes(i);
}
}
}
}