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fix(gif): fix the memory release error and optimize the number of cycles (#3884)

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yuqingli05 2023-01-03 15:31:21 +08:00 committed by GitHub
parent 83c384f6f7
commit 7fe3c48315
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 30 additions and 16 deletions
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28
src/libs/gif/gifdec.c
View File

@ -160,6 +160,7 @@ static gd_GIF * gif_open(gd_GIF * gif_base)
#endif
}
gif->anim_start = f_gif_seek(gif, 0, LV_FS_SEEK_CUR);
gif->loop_count = -1;
goto ok;
fail:
f_gif_close(gif_base);
@ -240,6 +241,7 @@ read_application_ext(gd_GIF * gif)
{
char app_id[8];
char app_auth_code[3];
uint16_t loop_count;
/* Discard block size (always 0x0B). */
f_gif_seek(gif, 1, LV_FS_SEEK_CUR);
@ -250,7 +252,15 @@ read_application_ext(gd_GIF * gif)
if(!strncmp(app_id, "NETSCAPE", sizeof(app_id))) {
/* Discard block size (0x03) and constant byte (0x01). */
f_gif_seek(gif, 2, LV_FS_SEEK_CUR);
gif->loop_count = read_num(gif);
loop_count = read_num(gif);
if(gif->loop_count < 0) {
if(loop_count == 0) {
gif->loop_count = 0;
}
else{
gif->loop_count = loop_count + 1;
}
}
/* Skip block terminator. */
f_gif_seek(gif, 1, LV_FS_SEEK_CUR);
}
@ -576,10 +586,17 @@ gd_get_frame(gd_GIF * gif)
dispose(gif);
f_gif_read(gif, &sep, 1);
while(sep != ',') {
if(sep == ';')
return 0;
if(sep == '!')
while (sep != ',') {
if (sep == ';') {
f_gif_seek(gif, gif->anim_start, LV_FS_SEEK_SET);
if(gif->loop_count == 1 || gif->loop_count < 0) {
return 0;
}
else if(gif->loop_count > 1) {
gif->loop_count--;
}
}
else if (sep == '!')
read_ext(gif);
else return -1;
f_gif_read(gif, &sep, 1);
@ -607,6 +624,7 @@ gd_render_frame(gd_GIF * gif, uint8_t * buffer)
void
gd_rewind(gd_GIF * gif)
{
gif->loop_count = -1;
f_gif_seek(gif, gif->anim_start, LV_FS_SEEK_SET);
}

2
src/libs/gif/gifdec.h
View File

@ -29,7 +29,7 @@ typedef struct gd_GIF {
int32_t anim_start;
uint16_t width, height;
uint16_t depth;
uint16_t loop_count;
int32_t loop_count;
gd_GCE gce;
gd_Palette * palette;
gd_Palette lct, gct;

16
src/libs/gif/lv_gif.c
View File

@ -113,6 +113,7 @@ static void lv_gif_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
lv_gif_t * gifobj = (lv_gif_t *) obj;
gifobj->gif = NULL;
gifobj->timer = lv_timer_create(next_frame_task_cb, 10, obj);
lv_timer_pause(gifobj->timer);
}
@ -122,7 +123,8 @@ static void lv_gif_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
LV_UNUSED(class_p);
lv_gif_t * gifobj = (lv_gif_t *) obj;
lv_img_cache_invalidate_src(&gifobj->imgdsc);
gd_close_gif(gifobj->gif);
if(gifobj->gif )
gd_close_gif(gifobj->gif);
lv_timer_del(gifobj->timer);
}
@ -138,15 +140,9 @@ static void next_frame_task_cb(lv_timer_t * t)
int has_next = gd_get_frame(gifobj->gif);
if(has_next == 0) {
/*It was the last repeat*/
if(gifobj->gif->loop_count <= 1) {
lv_res_t res = lv_event_send(obj, LV_EVENT_READY, NULL);
lv_timer_pause(t);
if(res != LV_FS_RES_OK) return;
}
else {
if(gifobj->gif->loop_count > 1) gifobj->gif->loop_count--;
gd_rewind(gifobj->gif);
}
lv_res_t res = lv_event_send(obj, LV_EVENT_READY, NULL);
lv_timer_pause(t);
if(res != LV_FS_RES_OK) return;
}
gd_render_frame(gifobj->gif, (uint8_t *)gifobj->imgdsc.data);