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Pi Firmware: Skipped second phase of Mode 7 Cal if ref is zero errors 

Change-Id: I4503762747a27976e8e476d2c07d1fe877ffdd4e
dev2
David Banks 2018-06-07 11:24:43 +01:00
rodzic 591de2d9f2
commit e9ab567231
1 zmienionych plików z 31 dodań i 28 usunięć
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59
src/rgb_to_hdmi.c
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@ -537,37 +537,40 @@ void calibrate_sampling(int mode7, int elk, int chars_per_line) {
}
init_sampling_point_register(sp_mode7, sp_default);
log_info("Calibration in progress: mode 7: %d %d %d %d %d %d",
sp_mode7[0], sp_mode7[1], sp_mode7[2], sp_mode7[3], sp_mode7[4], sp_mode7[5]);
// If the metric is non zero, there is scope for further optimiation
int ref = min_metric;
log_debug("ref = %d", ref);
for (i = 0; i <= 5; i++) {
int left = INT_MAX;
int right = INT_MAX;
if (sp_mode7[i] > 0) {
sp_mode7[i]--;
init_sampling_point_register(sp_mode7, sp_default);
left = diff_N_frames(i, NUM_CAL_FRAMES, mode7, elk, chars_per_line);
sp_mode7[i]++;
}
if (sp_mode7[i] < 7) {
sp_mode7[i]++;
init_sampling_point_register(sp_mode7, sp_default);
right = diff_N_frames(i, NUM_CAL_FRAMES, mode7, elk, chars_per_line);
sp_mode7[i]--;
}
if (left < right && left < ref) {
sp_mode7[i]--;
ref = left;
log_debug("nudged %d left, metric = %d", i, ref);
} else if (right < left && right < ref) {
sp_mode7[i]++;
ref = right;
log_debug("nudged %d right, metric = %d", i, ref);
if (ref > 0) {
log_info("Optimizing calibration: mode 7: %d %d %d %d %d %d",
sp_mode7[0], sp_mode7[1], sp_mode7[2], sp_mode7[3], sp_mode7[4], sp_mode7[5]);
log_debug("ref = %d", ref);
for (i = 0; i <= 5; i++) {
int left = INT_MAX;
int right = INT_MAX;
if (sp_mode7[i] > 0) {
sp_mode7[i]--;
init_sampling_point_register(sp_mode7, sp_default);
left = diff_N_frames(i, NUM_CAL_FRAMES, mode7, elk, chars_per_line);
sp_mode7[i]++;
}
if (sp_mode7[i] < 7) {
sp_mode7[i]++;
init_sampling_point_register(sp_mode7, sp_default);
right = diff_N_frames(i, NUM_CAL_FRAMES, mode7, elk, chars_per_line);
sp_mode7[i]--;
}
if (left < right && left < ref) {
sp_mode7[i]--;
ref = left;
log_debug("nudged %d left, metric = %d", i, ref);
} else if (right < left && right < ref) {
sp_mode7[i]++;
ref = right;
log_debug("nudged %d right, metric = %d", i, ref);
}
}
init_sampling_point_register(sp_mode7, sp_default);
}
init_sampling_point_register(sp_mode7, sp_default);
log_info("Calibration complete: mode 7: %d %d %d %d %d %d",
sp_mode7[0], sp_mode7[1], sp_mode7[2], sp_mode7[3], sp_mode7[4], sp_mode7[5]);
} else {