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/**
* @file lv_draw_sw_mask_private.h
*
*/
#ifndef LV_DRAW_SW_MASK_PRIVATE_H
#define LV_DRAW_SW_MASK_PRIVATE_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "lv_draw_sw_mask.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
typedef struct {
uint8_t * buf;
lv_opa_t * cir_opa; /**< Opacity of values on the circumference of an 1/4 circle */
uint16_t * x_start_on_y; /**< The x coordinate of the circle for each y value */
uint16_t * opa_start_on_y; /**< The index of `cir_opa` for each y value */
int32_t life; /**< How many times the entry way used */
uint32_t used_cnt; /**< Like a semaphore to count the referencing masks */
int32_t radius; /**< The radius of the entry */
} lv_draw_sw_mask_radius_circle_dsc_t;
struct lv_draw_sw_mask_common_dsc_t {
lv_draw_sw_mask_xcb_t cb;
lv_draw_sw_mask_type_t type;
};
struct lv_draw_sw_mask_line_param_t {
/** The first element must be the common descriptor */
lv_draw_sw_mask_common_dsc_t dsc;
struct {
/*First point*/
lv_point_t p1;
/*Second point*/
lv_point_t p2;
/*Which side to keep?*/
lv_draw_sw_mask_line_side_t side : 2;
} cfg;
/** A point of the line */
lv_point_t origo;
/** X / (1024*Y) steepness (X is 0..1023 range). What is the change of X in 1024 Y? */
int32_t xy_steep;
/** Y / (1024*X) steepness (Y is 0..1023 range). What is the change of Y in 1024 X? */
int32_t yx_steep;
/** Helper which stores yx_steep for flat lines and xy_steep for steep (non flat) lines */
int32_t steep;
/** Steepness in 1 px in 0..255 range. Used only by flat lines. */
int32_t spx;
/** 1: It's a flat line? (Near to horizontal) */
uint8_t flat : 1;
/** Invert the mask. The default is: Keep the left part.
*It is used to select left/right/top/bottom */
uint8_t inv: 1;
};
struct lv_draw_sw_mask_angle_param_t {
/** The first element must be the common descriptor */
lv_draw_sw_mask_common_dsc_t dsc;
struct {
lv_point_t vertex_p;
int32_t start_angle;
int32_t end_angle;
} cfg;
lv_draw_sw_mask_line_param_t start_line;
lv_draw_sw_mask_line_param_t end_line;
uint16_t delta_deg;
};
struct lv_draw_sw_mask_radius_param_t {
/** The first element must be the common descriptor */
lv_draw_sw_mask_common_dsc_t dsc;
struct {
lv_area_t rect;
int32_t radius;
/** Invert the mask. 0: Keep the pixels inside. */
uint8_t outer: 1;
} cfg;
lv_draw_sw_mask_radius_circle_dsc_t * circle;
};
struct lv_draw_sw_mask_fade_param_t {
/** The first element must be the common descriptor */
lv_draw_sw_mask_common_dsc_t dsc;
struct {
lv_area_t coords;
int32_t y_top;
int32_t y_bottom;
lv_opa_t opa_top;
lv_opa_t opa_bottom;
} cfg;
};
struct lv_draw_sw_mask_map_param_t {
/** The first element must be the common descriptor */
lv_draw_sw_mask_common_dsc_t dsc;
struct {
lv_area_t coords;
const lv_opa_t * map;
} cfg;
};
typedef lv_draw_sw_mask_radius_circle_dsc_t lv_draw_sw_mask_radius_circle_dsc_arr_t[LV_DRAW_SW_CIRCLE_CACHE_SIZE];
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Called by LVGL the rendering of a screen is ready to clean up
* the temporal (cache) data of the masks
*/
void lv_draw_sw_mask_cleanup(void);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_DRAW_SW_MASK_PRIVATE_H*/
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