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ad lv_draw_mask_map

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This commit is contained in:
Gabor Kiss-Vamosi 2019-09-10 07:02:33 +02:00
parent d0bc387c14
commit a296e50650
2 changed files with 48 additions and 1 deletions
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39
src/lv_draw/lv_draw_mask.c
View File

@ -711,12 +711,49 @@ lv_draw_mask_res_t lv_draw_mask_fade(lv_opa_t * mask_buf, lv_coord_t abs_x, lv_c
}
return LV_DRAW_MASK_RES_FULL_COVER;
}
void lv_draw_mask_map_init(lv_draw_mask_param_t * param, lv_area_t * coords, const lv_opa_t * map)
{
lv_draw_mask_map_param_t * p = &param->fade;
lv_area_copy(&p->coords, coords);
p->map = map;
}
lv_draw_mask_res_t lv_draw_mask_map(lv_opa_t * mask_buf, lv_coord_t abs_x, lv_coord_t abs_y, lv_coord_t len, lv_draw_mask_param_t * param)
{
lv_draw_mask_map_param_t * p = &param->map;
/*Handle out of the mask cases*/
if(abs_y < p->coords.y1) return LV_DRAW_MASK_RES_FULL_COVER;
if(abs_y > p->coords.y2) return LV_DRAW_MASK_RES_FULL_COVER;
if(abs_x + len < p->coords.x1) return LV_DRAW_MASK_RES_FULL_COVER;
if(abs_x > p->coords.x2) return LV_DRAW_MASK_RES_FULL_COVER;
/*Got to the current row in the map*/
const lv_opa_t * map_tmp = p->map;
map_tmp += (abs_y - p->coords.y1) * lv_area_get_width(&p-> coords);
if(abs_x + len > p->coords.x2) len -= abs_x + len - p->coords.x2 - 1;
if(abs_x < p->coords.x1) {
lv_coord_t x_ofs = 0;
x_ofs = p->coords.x1 - abs_x;
len -= x_ofs;
mask_buf += x_ofs;
} else {
map_tmp += (abs_x - p->coords.x1);
}
lv_coord_t i;
for(i = 0; i < len; i++) {
mask_buf[i] = mask_mix(mask_buf[i], map_tmp[i]);
}
return LV_DRAW_MASK_RES_CHANGED;
}
/**********************

10
src/lv_draw/lv_draw_mask.h
View File

@ -98,11 +98,18 @@ typedef struct {
}lv_draw_mask_fade_param_t;
typedef struct {
lv_area_t coords;
const lv_opa_t * map;
}lv_draw_mask_map_param_t;
typedef union {
lv_draw_mask_line_param_t line;
lv_draw_mask_radius_param_t radius;
lv_draw_mask_angle_param_t angle;
lv_draw_mask_fade_param_t fade;
lv_draw_mask_map_param_t map;
}lv_draw_mask_param_t;
typedef lv_draw_mask_res_t (*lv_draw_mask_cb_t)(lv_opa_t * mask_buf, lv_coord_t abs_x, lv_coord_t abs_y, lv_coord_t len, lv_draw_mask_param_t * p);
@ -133,6 +140,9 @@ lv_draw_mask_res_t lv_draw_mask_angle(lv_opa_t * mask_buf, lv_coord_t abs_x, lv_
void lv_draw_mask_fade_init(lv_draw_mask_param_t * param, lv_area_t * rect, lv_opa_t opa_top, lv_coord_t y_top, lv_opa_t opa_bottom, lv_coord_t y_bottom);
lv_draw_mask_res_t lv_draw_mask_fade(lv_opa_t * mask_buf, lv_coord_t abs_x, lv_coord_t abs_y, lv_coord_t len, lv_draw_mask_param_t * param);
void lv_draw_mask_map_init(lv_draw_mask_param_t * param, lv_area_t * coords, const lv_opa_t * map);
lv_draw_mask_res_t lv_draw_mask_map(lv_opa_t * mask_buf, lv_coord_t abs_x, lv_coord_t abs_y, lv_coord_t len, lv_draw_mask_param_t * param);
/**********************
* MACROS
**********************/