feat(underglow): Convert HSB changes to absolute.

* Public type for HSB led color.
* New API for calculating "next" HSB based on current
  state.
* Update behavior to convert the increment/decrement
  commands to absolute command as well.

1 files changed, 50 insertions, 4 deletions

diff --git a/app/src/behaviors/behavior_rgb_underglow.c b/app/src/behaviors/behavior_rgb_underglow.c
index fe33e04..79592ca 100644
--- a/app/src/behaviors/behavior_rgb_underglow.c
+++ b/app/src/behaviors/behavior_rgb_underglow.c
@@ -33,12 +33,57 @@ on_keymap_binding_convert_central_state_dependent_params(struct zmk_behavior_bin
         }
 
         binding->param1 = state ? RGB_OFF_CMD : RGB_ON_CMD;
-        LOG_DBG("RGB relative toggle convert to absolute %s", state ? "OFF" : "ON");
-        return 0;
+        break;
+    }
+    case RGB_BRI_CMD: {
+        struct zmk_led_hsb color = zmk_rgb_underglow_calc_brt(1);
+
+        binding->param1 = RGB_COLOR_HSB_CMD;
+        binding->param2 = RGB_COLOR_HSB_VAL(color.h, color.s, color.b);
+        break;
+    }
+    case RGB_BRD_CMD: {
+        struct zmk_led_hsb color = zmk_rgb_underglow_calc_brt(-1);
+
+        binding->param1 = RGB_COLOR_HSB_CMD;
+        binding->param2 = RGB_COLOR_HSB_VAL(color.h, color.s, color.b);
+        break;
+    }
+    case RGB_HUI_CMD: {
+        struct zmk_led_hsb color = zmk_rgb_underglow_calc_hue(1);
+
+        binding->param1 = RGB_COLOR_HSB_CMD;
+        binding->param2 = RGB_COLOR_HSB_VAL(color.h, color.s, color.b);
+        break;
+    }
+    case RGB_HUD_CMD: {
+        struct zmk_led_hsb color = zmk_rgb_underglow_calc_hue(-1);
+
+        binding->param1 = RGB_COLOR_HSB_CMD;
+        binding->param2 = RGB_COLOR_HSB_VAL(color.h, color.s, color.b);
+        break;
+    }
+    case RGB_SAI_CMD: {
+        struct zmk_led_hsb color = zmk_rgb_underglow_calc_sat(1);
+
+        binding->param1 = RGB_COLOR_HSB_CMD;
+        binding->param2 = RGB_COLOR_HSB_VAL(color.h, color.s, color.b);
+        break;
+    }
+    case RGB_SAD_CMD: {
+        struct zmk_led_hsb color = zmk_rgb_underglow_calc_sat(-1);
+
+        binding->param1 = RGB_COLOR_HSB_CMD;
+        binding->param2 = RGB_COLOR_HSB_VAL(color.h, color.s, color.b);
+        break;
     }
     default:
         return 0;
     }
+
+    LOG_DBG("RGB relative convert to absolute (%d/%d)", binding->param1, binding->param2);
+
+    return 0;
 };
 
 static int on_keymap_binding_pressed(struct zmk_behavior_binding *binding,
@@ -71,8 +116,9 @@ static int on_keymap_binding_pressed(struct zmk_behavior_binding *binding,
     case RGB_EFR_CMD:
         return zmk_rgb_underglow_cycle_effect(-1);
     case RGB_COLOR_HSB_CMD:
-        return zmk_rgb_underglow_set_hsb((binding->param2 >> 16) & 0xFFFF,
-                                         (binding->param2 >> 8) & 0xFF, binding->param2 & 0xFF);
+        return zmk_rgb_underglow_set_hsb((struct zmk_led_hsb){.h = (binding->param2 >> 16) & 0xFFFF,
+                                                              .s = (binding->param2 >> 8) & 0xFF,
+                                                              .b = binding->param2 & 0xFF});
     }
 
     return -ENOTSUP;