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