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perf(snapshot): render from the top object when taking snapshot. (#8424)

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Signed-off-by: yushuailong1 <yushuailong1@xiaomi.com>
This commit is contained in:
yushuailong
2025-06-18 17:48:59 +08:00
committed by GitHub
parent a8840a263f
commit 478b413779
3 changed files with 59 additions and 47 deletions
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src/core/lv_refr.c
+43 -43
View File
@@ -44,7 +44,6 @@ static void refr_invalid_areas(void);
static void refr_sync_areas(void);
static void refr_area(const lv_area_t * area_p, int32_t y_offset);
static void refr_configured_layer(lv_layer_t * layer);
static lv_obj_t * lv_refr_get_top_obj(const lv_area_t * area_p, lv_obj_t * obj);
static void refr_obj_and_children(lv_layer_t * layer, lv_obj_t * top_obj);
static void refr_obj(lv_layer_t * layer, lv_obj_t * obj);
static uint32_t get_max_row(lv_display_t * disp, int32_t area_w, int32_t area_h);
@@ -432,6 +431,49 @@ refr_finish:
LV_PROFILER_REFR_END;
}
/**
* Search the most top object which fully covers an area
* @param area_p pointer to an area
* @param obj the first object to start the searching (typically a screen)
* @return
*/
lv_obj_t * lv_refr_get_top_obj(const lv_area_t * area_p, lv_obj_t * obj)
{
lv_obj_t * found_p = NULL;
if(lv_area_is_in(area_p, &obj->coords, 0) == false) return NULL;
if(lv_obj_has_flag(obj, LV_OBJ_FLAG_HIDDEN)) return NULL;
if(lv_obj_get_layer_type(obj) != LV_LAYER_TYPE_NONE) return NULL;
if(lv_obj_get_style_opa(obj, LV_PART_MAIN) < LV_OPA_MAX) return NULL;
/*If this object is fully cover the draw area then check the children too*/
lv_cover_check_info_t info;
info.res = LV_COVER_RES_COVER;
info.area = area_p;
lv_obj_send_event(obj, LV_EVENT_COVER_CHECK, &info);
if(info.res == LV_COVER_RES_MASKED) return NULL;
int32_t i;
int32_t child_cnt = lv_obj_get_child_count(obj);
for(i = child_cnt - 1; i >= 0; i--) {
lv_obj_t * child = obj->spec_attr->children[i];
found_p = lv_refr_get_top_obj(area_p, child);
/*If a children is ok then break*/
if(found_p != NULL) {
break;
}
}
/*If no better children use this object*/
if(found_p == NULL && info.res == LV_COVER_RES_COVER) {
found_p = obj;
}
return found_p;
}
/**********************
* STATIC FUNCTIONS
**********************/
@@ -902,48 +944,6 @@ static void refr_configured_layer(lv_layer_t * layer)
LV_PROFILER_REFR_END;
}
/**
* Search the most top object which fully covers an area
* @param area_p pointer to an area
* @param obj the first object to start the searching (typically a screen)
* @return
*/
static lv_obj_t * lv_refr_get_top_obj(const lv_area_t * area_p, lv_obj_t * obj)
{
lv_obj_t * found_p = NULL;
if(lv_area_is_in(area_p, &obj->coords, 0) == false) return NULL;
if(lv_obj_has_flag(obj, LV_OBJ_FLAG_HIDDEN)) return NULL;
if(lv_obj_get_layer_type(obj) != LV_LAYER_TYPE_NONE) return NULL;
if(lv_obj_get_style_opa(obj, LV_PART_MAIN) < LV_OPA_MAX) return NULL;
/*If this object is fully cover the draw area then check the children too*/
lv_cover_check_info_t info;
info.res = LV_COVER_RES_COVER;
info.area = area_p;
lv_obj_send_event(obj, LV_EVENT_COVER_CHECK, &info);
if(info.res == LV_COVER_RES_MASKED) return NULL;
int32_t i;
int32_t child_cnt = lv_obj_get_child_count(obj);
for(i = child_cnt - 1; i >= 0; i--) {
lv_obj_t * child = obj->spec_attr->children[i];
found_p = lv_refr_get_top_obj(area_p, child);
/*If a children is ok then break*/
if(found_p != NULL) {
break;
}
}
/*If no better children use this object*/
if(found_p == NULL && info.res == LV_COVER_RES_COVER) {
found_p = obj;
}
return found_p;
}
/**
* Make the refreshing from an object. Draw all its children and the youngers too.
* @param top_p pointer to an objects. Start the drawing from it.
src/core/lv_refr_private.h
+8
View File
@@ -58,6 +58,14 @@ lv_display_t * lv_refr_get_disp_refreshing(void);
*/
void lv_refr_set_disp_refreshing(lv_display_t * disp);
/**
* Search the most top object which fully covers an area
* @param area_p pointer to an area
* @param obj the first object to start the searching (typically a screen)
* @return
*/
lv_obj_t * lv_refr_get_top_obj(const lv_area_t * area_p, lv_obj_t * obj);
/**********************
* MACROS
**********************/
src/others/snapshot/lv_snapshot.c
+8 -4
View File
@@ -98,9 +98,6 @@ lv_result_t lv_snapshot_take_to_draw_buf(lv_obj_t * obj, lv_color_format_t cf, l
res = lv_snapshot_reshape_draw_buf(obj, draw_buf);
if(res != LV_RESULT_OK) return res;
/* clear draw buffer*/
lv_draw_buf_clear(draw_buf, NULL);
lv_area_t snapshot_area;
int32_t w = draw_buf->header.w;
int32_t h = draw_buf->header.h;
@@ -108,6 +105,13 @@ lv_result_t lv_snapshot_take_to_draw_buf(lv_obj_t * obj, lv_color_format_t cf, l
lv_obj_get_coords(obj, &snapshot_area);
lv_area_increase(&snapshot_area, ext_size, ext_size);
lv_obj_t * top_obj = lv_refr_get_top_obj(&snapshot_area, obj);
if(top_obj == NULL) {
/* Clear draw buffer when no top object*/
lv_draw_buf_clear(draw_buf, NULL);
top_obj = obj;
}
lv_layer_t layer;
lv_layer_init(&layer);
@@ -126,7 +130,7 @@ lv_result_t lv_snapshot_take_to_draw_buf(lv_obj_t * obj, lv_color_format_t cf, l
disp_new->layer_head = &layer;
lv_refr_set_disp_refreshing(disp_new);
lv_obj_redraw(&layer, obj);
lv_obj_redraw(&layer, top_obj);
while(layer.draw_task_head) {
lv_draw_dispatch_wait_for_request();