Allow overscan setting in resolutions

hoglet67 · Jan 13, 2021 · f29faee · f29faee
1 parent 8ae7bd4
commit f29faee
Show file tree

Hide file tree

Showing 3 changed files with 54 additions and 0 deletions.
diff --git a/src/osd.c b/src/osd.c
@@ -5260,6 +5260,42 @@ void osd_init() {
 
    int cbytes = file_load("/config.txt", config_buffer, MAX_CONFIG_BUFFER_SIZE);
 
+   if (cbytes) {
+      prop = get_prop_no_space(config_buffer, "overscan_left");
+   }
+   if (!prop || !cbytes) {
+      prop = "0";
+   }
+   log_info("overscan_left: %s", prop);
+   int l = atoi(prop);
+   if (cbytes) {
+      prop = get_prop_no_space(config_buffer, "overscan_right");
+   }
+   if (!prop || !cbytes) {
+      prop = "0";
+   }
+   log_info("overscan_right: %s", prop);
+   int r = atoi(prop);
+
+   if (cbytes) {
+      prop = get_prop_no_space(config_buffer, "overscan_top");
+   }
+   if (!prop || !cbytes) {
+      prop = "0";
+   }
+   log_info("overscan_top: %s", prop);
+   int t = atoi(prop);
+   if (cbytes) {
+      prop = get_prop_no_space(config_buffer, "overscan_bottom");
+   }
+   if (!prop || !cbytes) {
+      prop = "0";
+   }
+   log_info("overscan_bottom: %s", prop);
+   int b = atoi(prop);
+
+   set_config_overscan(l, r, t, b);
+
    if (cbytes) {
       prop = get_prop_no_space(config_buffer, "hdmi_drive");
    }

diff --git a/src/rgb_to_hdmi.c b/src/rgb_to_hdmi.c
@@ -242,6 +242,10 @@ static int vlock_limited = 0;
 static int current_display_buffer = 0;
 static int h_overscan = 0;
 static int v_overscan = 0;
+static int config_overscan_left = 0;
+static int config_overscan_right = 0;
+static int config_overscan_top = 0;
+static int config_overscan_bottom = 0;
 static int cpuspeed = 1000;
 static int cpld_fail_state = CPLD_NORMAL;
 static int helper_flag = 0;
@@ -435,6 +439,12 @@ static int last_height = -1;
 
    int top_overscan = adj_v_overscan >> 1;
    int bottom_overscan = top_overscan + (adj_v_overscan & 1);
+
+
+   left_overscan += config_overscan_left;
+   right_overscan += config_overscan_right;
+   top_overscan += config_overscan_top;
+   bottom_overscan += config_overscan_bottom;
 
    log_info("Overscan L=%d, R=%d, T=%d, B=%d",left_overscan, right_overscan, top_overscan, bottom_overscan);
 
@@ -2253,6 +2263,13 @@ int get_current_display_buffer() {
    }
 }
 
+void set_config_overscan(int l, int r, int t, int b) {
+   config_overscan_left = l;
+   config_overscan_right = r;
+   config_overscan_top = t;
+   config_overscan_bottom = b;
+}
+
 void set_profile(int val) {
    log_info("Setting profile to %d", val);
    profile = val;

diff --git a/src/rgb_to_hdmi.h b/src/rgb_to_hdmi.h
@@ -2,6 +2,7 @@
 #define RGB_TO_HDMI_H
 
 // Property setters/getters
+void set_config_overscan(int l, int r, int t, int b);
 void set_profile(int value);
 int  get_profile();
 void set_subprofile(int value);