1 files changed, 75 insertions, 0 deletions
diff --git a/quantum/rgb_matrix_animations/typing_heatmap_anim.h b/quantum/rgb_matrix_animations/typing_heatmap_anim.h
new file mode 100644
index 0000000000..aade53fccc
--- /dev/null
+++ b/quantum/rgb_matrix_animations/typing_heatmap_anim.h
@@ -0,0 +1,75 @@
+#pragma once
+#if defined(RGB_MATRIX_FRAMEBUFFER_EFFECTS) && !defined(DISABLE_RGB_MATRIX_TYPING_HEATMAP)
+
+extern rgb_config_t rgb_matrix_config;
+extern uint8_t rgb_frame_buffer[MATRIX_ROWS][MATRIX_COLS];
+
+void process_rgb_matrix_typing_heatmap(keyrecord_t *record) {
+    uint8_t row = record->event.key.row;
+    uint8_t col = record->event.key.col;
+    uint8_t m_row = row - 1;
+    uint8_t p_row = row + 1;
+    uint8_t m_col = col - 1;
+    uint8_t p_col = col + 1;
+
+    if (m_col < col)
+      rgb_frame_buffer[row][m_col] = qadd8(rgb_frame_buffer[row][m_col], 16);
+    rgb_frame_buffer[row][col] = qadd8(rgb_frame_buffer[row][col], 32);
+    if (p_col < MATRIX_COLS)
+      rgb_frame_buffer[row][p_col] = qadd8(rgb_frame_buffer[row][p_col], 16);
+
+    if (p_row < MATRIX_ROWS) {
+      if (m_col < col)
+        rgb_frame_buffer[p_row][m_col] = qadd8(rgb_frame_buffer[p_row][m_col], 13);
+      rgb_frame_buffer[p_row][col] = qadd8(rgb_frame_buffer[p_row][col], 16);
+      if (p_col < MATRIX_COLS)
+        rgb_frame_buffer[p_row][p_col] = qadd8(rgb_frame_buffer[p_row][p_col], 13);
+    }
+
+    if (m_row < row) {
+      if (m_col < col)
+        rgb_frame_buffer[m_row][m_col] = qadd8(rgb_frame_buffer[m_row][m_col], 13);
+      rgb_frame_buffer[m_row][col] = qadd8(rgb_frame_buffer[m_row][col], 16);
+      if (p_col < MATRIX_COLS)
+        rgb_frame_buffer[m_row][p_col] = qadd8(rgb_frame_buffer[m_row][p_col], 13);
+    }
+}
+
+bool rgb_matrix_typing_heatmap(effect_params_t* params) {
+  // Modified version of RGB_MATRIX_USE_LIMITS to work off of matrix row / col size
+  uint8_t led_min = RGB_MATRIX_LED_PROCESS_LIMIT * params->iter;
+  uint8_t led_max = led_min + RGB_MATRIX_LED_PROCESS_LIMIT;
+  if (led_max > sizeof(rgb_frame_buffer))
+    led_max = sizeof(rgb_frame_buffer);
+
+  if (params->init) {
+    rgb_matrix_set_color_all(0, 0, 0);
+    memset(rgb_frame_buffer, 0, sizeof rgb_frame_buffer);
+  }
+
+  // Render heatmap & decrease
+  for (int i = led_min; i < led_max; i++) {
+    uint8_t row = i % MATRIX_ROWS;
+    uint8_t col = i / MATRIX_ROWS;
+    uint8_t val = rgb_frame_buffer[row][col];
+
+    // set the pixel colour
+    uint8_t led[LED_HITS_TO_REMEMBER];
+    uint8_t led_count = rgb_matrix_map_row_column_to_led(row, col, led);
+    for (uint8_t j = 0; j < led_count; ++j)
+    {
+      if (!HAS_ANY_FLAGS(g_led_config.flags[led[j]], params->flags))
+        continue;
+
+      HSV hsv = { 170 - qsub8(val, 85), rgb_matrix_config.sat, scale8((qadd8(170, val) - 170) * 3, rgb_matrix_config.val) };
+      RGB rgb = hsv_to_rgb(hsv);
+      rgb_matrix_set_color(led[j], rgb.r, rgb.g, rgb.b);
+    }
+
+    rgb_frame_buffer[row][col] = qsub8(val, 1);
+  }
+
+  return led_max < sizeof(rgb_frame_buffer);
+}
+
+#endif // defined(RGB_MATRIX_FRAMEBUFFER_EFFECTS) && !defined(DISABLE_RGB_MATRIX_TYPING_HEATMAP)