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/**
* @file lv_draw_mask.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_draw_private.h"
#include "lv_draw_mask_private.h"
#include "../core/lv_refr.h"
#include "../misc/lv_math.h"
#include "../misc/lv_types.h"
#include "../stdlib/lv_string.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void LV_ATTRIBUTE_FAST_MEM lv_draw_mask_rect_dsc_init(lv_draw_mask_rect_dsc_t * dsc)
{
lv_memzero(dsc, sizeof(lv_draw_mask_rect_dsc_t));
}
lv_draw_mask_rect_dsc_t * lv_draw_task_get_mask_rect_dsc(lv_draw_task_t * task)
{
return task->type == LV_DRAW_TASK_TYPE_MASK_RECTANGLE ? (lv_draw_mask_rect_dsc_t *)task->draw_dsc : NULL;
}
void LV_ATTRIBUTE_FAST_MEM lv_draw_mask_rect(lv_layer_t * layer, const lv_draw_mask_rect_dsc_t * dsc)
{
if(!lv_color_format_has_alpha(layer->color_format)) {
LV_LOG_WARN("Only layers with alpha channel can be masked");
return;
}
LV_PROFILER_BEGIN;
lv_draw_task_t * t = lv_draw_add_task(layer, &layer->buf_area);
t->draw_dsc = lv_malloc(sizeof(*dsc));
lv_memcpy(t->draw_dsc, dsc, sizeof(*dsc));
t->type = LV_DRAW_TASK_TYPE_MASK_RECTANGLE;
lv_draw_dsc_base_t * base_dsc = t->draw_dsc;
base_dsc->layer = layer;
if(base_dsc->obj && lv_obj_has_flag(base_dsc->obj, LV_OBJ_FLAG_SEND_DRAW_TASK_EVENTS)) {
/*Disable sending LV_EVENT_DRAW_TASK_ADDED first to avoid triggering recursive
*event calls due draw task adds in the event*/
lv_obj_remove_flag(base_dsc->obj, LV_OBJ_FLAG_SEND_DRAW_TASK_EVENTS);
lv_obj_send_event(dsc->base.obj, LV_EVENT_DRAW_TASK_ADDED, t);
lv_obj_add_flag(base_dsc->obj, LV_OBJ_FLAG_SEND_DRAW_TASK_EVENTS);
}
lv_draw_finalize_task_creation(layer, t);
LV_PROFILER_END;
}
/**********************
* STATIC FUNCTIONS
**********************/
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