Transition to hekate bdk layout

bdk/libs/lvgl/lv_misc/lv_math.h

@@ -0,0 +1,73 @@
+/**
+ * @file math_base.h
+ *
+ */
+
+#ifndef LV_MATH_H
+#define LV_MATH_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include <stdint.h>
+
+/*********************
+ *      DEFINES
+ *********************/
+#define LV_MATH_MIN(a,b) ((a) < (b) ? (a) : (b))
+#define LV_MATH_MAX(a,b) ((a) > (b) ? (a) : (b))
+#define LV_MATH_ABS(x) ((x) > 0 ? (x) : (-(x)))
+
+#define LV_TRIGO_SIN_MAX    32767
+#define LV_TRIGO_SHIFT      15      /* >> LV_TRIGO_SHIFT to normalize*/
+
+#define LV_BEZIER_VAL_MAX       1024    /*Max time in Bezier functions (not [0..1] to use integers) */
+#define LV_BEZIER_VAL_SHIFT     10      /*log2(LV_BEZIER_VAL_MAX): used to normalize up scaled values*/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+/**
+ * Convert a number to string
+ * @param num a number
+ * @param buf pointer to a `char` buffer. The result will be stored here (max 10 elements)
+ * @return same as `buf` (just for convenience)
+ */
+char * lv_math_num_to_str(int32_t num, char * buf);
+
+/**
+ * Return with sinus of an angle
+ * @param angle
+ * @return sinus of 'angle'. sin(-90) = -32767, sin(90) = 32767
+ */
+int16_t lv_trigo_sin(int16_t angle);
+
+/**
+ * Calculate a value of a Cubic Bezier function.
+ * @param t time in range of [0..LV_BEZIER_VAL_MAX]
+ * @param u0 start values in range of [0..LV_BEZIER_VAL_MAX]
+ * @param u1 control value 1 values in range of [0..LV_BEZIER_VAL_MAX]
+ * @param u2 control value 2 in range of [0..LV_BEZIER_VAL_MAX]
+ * @param u3 end values in range of [0..LV_BEZIER_VAL_MAX]
+ * @return the value calculated from the given parameters in range of [0..LV_BEZIER_VAL_MAX]
+ */
+int32_t lv_bezier3(uint32_t t, int32_t u0, int32_t u1, int32_t u2, int32_t u3);
+
+/**********************
+ *      MACROS
+ **********************/
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif