From dd27c3530432ea0b09f01e604bf577f31d8ef841 Mon Sep 17 00:00:00 2001 From: jacqueline Date: Thu, 1 Jun 2023 15:41:47 +1000 Subject: convert lvgl from submodule to a plain old directory --- lib/lvgl | 1 - lib/lvgl/src/misc/lv_math.h | 143 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 143 insertions(+), 1 deletion(-) delete mode 160000 lib/lvgl create mode 100644 lib/lvgl/src/misc/lv_math.h (limited to 'lib/lvgl/src/misc/lv_math.h') diff --git a/lib/lvgl b/lib/lvgl deleted file mode 160000 index 0732400e..00000000 --- a/lib/lvgl +++ /dev/null @@ -1 +0,0 @@ -Subproject commit 0732400e7b564dd0e7dc4a924619d8e19c5b23a0 diff --git a/lib/lvgl/src/misc/lv_math.h b/lib/lvgl/src/misc/lv_math.h new file mode 100644 index 00000000..4b2860a9 --- /dev/null +++ b/lib/lvgl/src/misc/lv_math.h @@ -0,0 +1,143 @@ +/** + * @file lv_math.h + * + */ + +#ifndef LV_MATH_H +#define LV_MATH_H + +#ifdef __cplusplus +extern "C" { +#endif + +/********************* + * INCLUDES + *********************/ +#include "../lv_conf_internal.h" +#include + +/********************* + * DEFINES + *********************/ +#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 + **********************/ + +typedef struct { + uint16_t i; + uint16_t f; +} lv_sqrt_res_t; + +/********************** + * GLOBAL PROTOTYPES + **********************/ + +//! @cond Doxygen_Suppress +/** + * Return with sinus of an angle + * @param angle + * @return sinus of 'angle'. sin(-90) = -32767, sin(90) = 32767 + */ +LV_ATTRIBUTE_FAST_MEM int16_t lv_trigo_sin(int16_t angle); + +static inline LV_ATTRIBUTE_FAST_MEM int16_t lv_trigo_cos(int16_t angle) +{ + return lv_trigo_sin(angle + 90); +} + +//! @endcond + +/** + * 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] + */ +uint32_t lv_bezier3(uint32_t t, uint32_t u0, uint32_t u1, uint32_t u2, uint32_t u3); + +/** + * Calculate the atan2 of a vector. + * @param x + * @param y + * @return the angle in degree calculated from the given parameters in range of [0..360] + */ +uint16_t lv_atan2(int x, int y); + +//! @cond Doxygen_Suppress + +/** + * Get the square root of a number + * @param x integer which square root should be calculated + * @param q store the result here. q->i: integer part, q->f: fractional part in 1/256 unit + * @param mask optional to skip some iterations if the magnitude of the root is known. + * Set to 0x8000 by default. + * If root < 16: mask = 0x80 + * If root < 256: mask = 0x800 + * Else: mask = 0x8000 + */ +LV_ATTRIBUTE_FAST_MEM void lv_sqrt(uint32_t x, lv_sqrt_res_t * q, uint32_t mask); + +//! @endcond + +/** + * Calculate the integer exponents. + * @param base + * @param power + * @return base raised to the power exponent + */ +int64_t lv_pow(int64_t base, int8_t exp); + +/** + * Get the mapped of a number given an input and output range + * @param x integer which mapped value should be calculated + * @param min_in min input range + * @param max_in max input range + * @param min_out max output range + * @param max_out max output range + * @return the mapped number + */ +int32_t lv_map(int32_t x, int32_t min_in, int32_t max_in, int32_t min_out, int32_t max_out); + +/** + * Get a pseudo random number in the given range + * @param min the minimum value + * @param max the maximum value + * @return return the random number. min <= return_value <= max + */ +uint32_t lv_rand(uint32_t min, uint32_t max); + +/********************** + * MACROS + **********************/ +#define LV_MIN(a, b) ((a) < (b) ? (a) : (b)) +#define LV_MIN3(a, b, c) (LV_MIN(LV_MIN(a,b), c)) +#define LV_MIN4(a, b, c, d) (LV_MIN(LV_MIN(a,b), LV_MIN(c,d))) + +#define LV_MAX(a, b) ((a) > (b) ? (a) : (b)) +#define LV_MAX3(a, b, c) (LV_MAX(LV_MAX(a,b), c)) +#define LV_MAX4(a, b, c, d) (LV_MAX(LV_MAX(a,b), LV_MAX(c,d))) + +#define LV_CLAMP(min, val, max) (LV_MAX(min, (LV_MIN(val, max)))) + +#define LV_ABS(x) ((x) > 0 ? (x) : (-(x))) +#define LV_UDIV255(x) (((x) * 0x8081U) >> 0x17) + +#define LV_IS_SIGNED(t) (((t)(-1)) < ((t)0)) +#define LV_UMAX_OF(t) (((0x1ULL << ((sizeof(t) * 8ULL) - 1ULL)) - 1ULL) | (0xFULL << ((sizeof(t) * 8ULL) - 4ULL))) +#define LV_SMAX_OF(t) (((0x1ULL << ((sizeof(t) * 8ULL) - 1ULL)) - 1ULL) | (0x7ULL << ((sizeof(t) * 8ULL) - 4ULL))) +#define LV_MAX_OF(t) ((unsigned long)(LV_IS_SIGNED(t) ? LV_SMAX_OF(t) : LV_UMAX_OF(t))) + +#ifdef __cplusplus +} /*extern "C"*/ +#endif + +#endif -- cgit v1.2.3