Added flower blooming on RGB Matrix effect (qmk#21948)

docs/feature_rgb_matrix.md

@@ -645,6 +645,7 @@ enum rgb_matrix_effects {
     RGB_MATRIX_DUAL_BEACON,         // Full gradient spinning around center of keyboard
     RGB_MATRIX_RAINBOW_BEACON,      // Full tighter gradient spinning around center of keyboard
     RGB_MATRIX_RAINBOW_PINWHEELS,   // Full dual gradients spinning two halfs of keyboard
+    RGB_MATRIX_FLOWER_BLOOMING,     // Full tighter gradient of first half scrolling left to right and second half scrolling right to left
     RGB_MATRIX_RAINDROPS,           // Randomly changes a single key's hue
     RGB_MATRIX_JELLYBEAN_RAINDROPS, // Randomly changes a single key's hue and saturation
     RGB_MATRIX_HUE_BREATHING,       // Hue shifts up a slight ammount at the same time, then shifts back
@@ -697,6 +698,7 @@ You can enable a single effect by defining `ENABLE_[EFFECT_NAME]` in your `confi
 |`#define ENABLE_RGB_MATRIX_DUAL_BEACON`               |Enables `RGB_MATRIX_DUAL_BEACON`              |
 |`#define ENABLE_RGB_MATRIX_RAINBOW_BEACON`            |Enables `RGB_MATRIX_RAINBOW_BEACON`           |
 |`#define ENABLE_RGB_MATRIX_RAINBOW_PINWHEELS`         |Enables `RGB_MATRIX_RAINBOW_PINWHEELS`        |
+|`#define ENABLE_RGB_MATRIX_FLOWER_BLOOMING`           |Enables `RGB_MATRIX_FLOWER_BLOOMING`          |
 |`#define ENABLE_RGB_MATRIX_RAINDROPS`                 |Enables `RGB_MATRIX_RAINDROPS`                |
 |`#define ENABLE_RGB_MATRIX_JELLYBEAN_RAINDROPS`       |Enables `RGB_MATRIX_JELLYBEAN_RAINDROPS`      |
 |`#define ENABLE_RGB_MATRIX_HUE_BREATHING`             |Enables `RGB_MATRIX_HUE_BREATHING`            |

docs/squeezing_avr.md

@@ -168,6 +168,7 @@ For RGB Matrix, these need to be explicitly enabled as well. To disable any that
 #undef ENABLE_RGB_MATRIX_DUAL_BEACON
 #undef ENABLE_RGB_MATRIX_RAINBOW_BEACON
 #undef ENABLE_RGB_MATRIX_RAINBOW_PINWHEELS
+#undef ENABLE_RGB_MATRIX_FLOWER_BLOOMING
 #undef ENABLE_RGB_MATRIX_RAINDROPS
 #undef ENABLE_RGB_MATRIX_JELLYBEAN_RAINDROPS
 #undef ENABLE_RGB_MATRIX_HUE_BREATHING

quantum/rgb_matrix/animations/flower_blooming_anim.h

@@ -0,0 +1,53 @@
+/* Copyright 2023 HorrorTroll <https://github.com/HorrorTroll>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef ENABLE_RGB_MATRIX_FLOWER_BLOOMING
+RGB_MATRIX_EFFECT(FLOWER_BLOOMING)
+#    ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
+
+typedef HSV (*flower_blooming_f)(HSV hsv, uint8_t i, uint8_t time);
+
+bool effect_runner_bloom(effect_params_t* params, flower_blooming_f effect_func) {
+    RGB_MATRIX_USE_LIMITS(led_min, led_max);
+
+    uint8_t time = scale16by8(g_rgb_timer, qadd8(rgb_matrix_config.speed / 10, 1));
+    for (uint8_t i = led_min; i < led_max; i++) {
+        RGB_MATRIX_TEST_LED_FLAGS();
+        if (g_led_config.point[i].y > k_rgb_matrix_center.y) {
+            RGB bgr = rgb_matrix_hsv_to_rgb(effect_func(rgb_matrix_config.hsv, i, time));
+            rgb_matrix_set_color(i, bgr.b, bgr.g, bgr.r);
+        } else {
+            RGB rgb = rgb_matrix_hsv_to_rgb(effect_func(rgb_matrix_config.hsv, i, time));
+            rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+        }
+    }
+    return rgb_matrix_check_finished_leds(led_max);
+}
+
+static HSV FLOWER_BLOOMING_math(HSV hsv, uint8_t i, uint8_t time) {
+    if (g_led_config.point[i].y > k_rgb_matrix_center.y)
+        hsv.h = g_led_config.point[i].x * 3 - g_led_config.point[i].y * 3 + time;
+    else
+        hsv.h = g_led_config.point[i].x * 3 - g_led_config.point[i].y * 3 - time;
+    return hsv;
+}
+
+bool FLOWER_BLOOMING(effect_params_t* params) {
+    return effect_runner_bloom(params, &FLOWER_BLOOMING_math);
+}
+
+#    endif // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
+#endif     // ENABLE_RGB_MATRIX_FLOWER_BLOOMING

quantum/rgb_matrix/animations/rgb_matrix_effects.inc

@@ -21,6 +21,7 @@
 #include "dual_beacon_anim.h"
 #include "rainbow_beacon_anim.h"
 #include "rainbow_pinwheels_anim.h"
+#include "flower_blooming_anim.h"
 #include "raindrops_anim.h"
 #include "jellybean_raindrops_anim.h"
 #include "hue_breathing_anim.h"