perf: Enable 512KB LVGL image cache on PSRAM and move modified lvgl to local components

2026-07-09 22:27:55 -04:00
parent df93252281
commit c4ec7ead55
3999 changed files with 813776 additions and 0 deletions
@@ -0,0 +1,91 @@
+/**
+ * @file lv_utils.h
+ *
+ */
+
+#ifndef LV_UTILS_H
+#define LV_UTILS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+
+#include "lv_types.h"
+#include "../draw/lv_draw_buf.h"
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+/** Searches base[0] to base[n - 1] for an item that matches *key.
+ *
+ * @note The function cmp must return negative if it's first
+ *  argument (the search key) is less that it's second (a table entry),
+ *  zero if equal, and positive if greater.
+ *
+ * @note Items in the array must be in ascending order.
+ *
+ * @param key    Pointer to item being searched for
+ * @param base   Pointer to first element to search
+ * @param n      Number of elements
+ * @param size   Size of each element
+ * @param cmp    Pointer to comparison function (see unicode_list_compare()
+ *                 as a comparison function example)
+ *
+ * @return a pointer to a matching item, or NULL if none exists.
+ */
+void * lv_utils_bsearch(const void * key, const void * base, size_t n, size_t size,
+                        int (*cmp)(const void * pRef, const void * pElement));
+
+/**
+ * Save a draw buf to a file
+ * @param draw_buf  pointer to a draw buffer
+ * @param path      path to the file to save
+ * @return          LV_RESULT_OK: success; LV_RESULT_INVALID: error
+ */
+lv_result_t lv_draw_buf_save_to_file(const lv_draw_buf_t * draw_buf, const char * path);
+
+/**
+ * Reverse the order of the bytes in a 32-bit value.
+ * @param x     a 32-bit value.
+ * @return      the value `x` with reversed byte-order.
+ */
+static inline uint32_t lv_swap_bytes_32(uint32_t x)
+{
+    return (x << 24)
+           | ((x & 0x0000ff00U) <<  8)
+           | ((x & 0x00ff0000U) >>  8)
+           | (x >> 24);
+}
+
+/**
+ * Reverse the order of the bytes in a 16-bit value.
+ * @param x     a 16-bit value.
+ * @return      the value `x` with reversed byte-order.
+ */
+static inline uint16_t lv_swap_bytes_16(uint16_t x)
+{
+    return (x << 8) | (x >> 8);
+}
+
+/**********************
+ *      MACROS
+ **********************/
+
+#ifdef __cplusplus
+} /*extern "C"*/
+#endif
+
+#endif