linuxOS_AP05/buildroot/package/rockchip/lvgl/0004-gif-add-cache.patch

From 2b6616cd1d873260978722be2bfc3975e809a793 Mon Sep 17 00:00:00 2001
From: Jinkun Hong <jinkun.hong@rock-chips.com>
Date: Mon, 6 Jun 2022 09:46:49 +0800
Subject: [PATCH 4/6] gif add cache

Signed-off-by: Jinkun Hong <jinkun.hong@rock-chips.com>
---
 src/extra/libs/gif/lv_gif.c | 79 ++++++++++++++++++++++++++++++++++++++++++++-
 src/extra/libs/gif/lv_gif.h | 10 ++++++
 2 files changed, 88 insertions(+), 1 deletion(-)

diff --git a/src/extra/libs/gif/lv_gif.c b/src/extra/libs/gif/lv_gif.c
index 4cb2955..a2eaaf9 100644
--- a/src/extra/libs/gif/lv_gif.c
+++ b/src/extra/libs/gif/lv_gif.c
@@ -65,6 +65,17 @@ void lv_gif_set_src(lv_obj_t * obj, const void * src)
         gd_close_gif(gifobj->gif);
         gifobj->gif = NULL;
         gifobj->imgdsc.data = NULL;
+#if LV_GIF_CACHE
+        while (gifobj->canvas_list) {
+            lv_gif_canvas_t *next = gifobj->canvas_list->next;
+            if (gifobj->canvas_list->data)
+                free(gifobj->canvas_list->data);
+            free(gifobj->canvas_list);
+            gifobj->canvas_list = next;
+        }
+        gifobj->canvas_list = NULL;
+        gifobj->canvas_cur = NULL;
+#endif
     }
 
     if(lv_img_src_get_type(src) == LV_IMG_SRC_VARIABLE) {
@@ -86,6 +97,52 @@ void lv_gif_set_src(lv_obj_t * obj, const void * src)
     gifobj->imgdsc.header.w = gifobj->gif->width;
     gifobj->last_call = lv_tick_get();
 
+#if LV_GIF_CACHE
+    int data_len;
+    int i = 0;
+    lv_gif_canvas_t *canvas_tmp;
+    lv_gif_canvas_t *canvas = malloc(sizeof(lv_gif_canvas_t));
+    gifobj->canvas_list = canvas;
+    gifobj->canvas_cur = canvas;
+#if LV_COLOR_DEPTH == 32
+    data_len = gifobj->gif->height * gifobj->gif->width * 4;
+#elif LV_COLOR_DEPTH == 16
+    data_len = gifobj->gif->height * gifobj->gif->width * 2;
+#else
+    data_len = gifobj->gif->height * gifobj->gif->width;
+#endif
+    canvas->data = malloc(data_len);
+    memcpy(canvas->data, gifobj->gif->canvas, data_len);
+    canvas->next = NULL;
+    gifobj->imgdsc.data = canvas->data;
+    while (1) {
+        int has_next = gd_get_frame(gifobj->gif);
+        if(has_next == 0) {
+            if(gifobj->gif->loop_count > 1)  gifobj->gif->loop_count--;
+            gd_rewind(gifobj->gif);
+            break;
+        }
+        gd_render_frame(gifobj->gif, (uint8_t *)gifobj->gif->canvas);
+        canvas_tmp = malloc(sizeof(lv_gif_canvas_t));
+        canvas_tmp->next = NULL;
+        canvas->next = canvas_tmp;
+        canvas = canvas_tmp;
+        canvas->data = malloc(data_len);
+        memcpy(canvas->data, gifobj->gif->canvas, data_len);
+    }
+    canvas_tmp = gifobj->canvas_list;
+    for (i = 0; i < 2 && canvas_tmp; i++) {
+        int has_next = gd_get_frame(gifobj->gif);
+        if(has_next == 0) {
+            if(gifobj->gif->loop_count > 1)  gifobj->gif->loop_count--;
+            gd_rewind(gifobj->gif);
+            break;
+        }
+        gd_render_frame(gifobj->gif, (uint8_t *)gifobj->gif->canvas);
+        memcpy(canvas_tmp->data, gifobj->gif->canvas, data_len);
+        canvas_tmp = canvas_tmp->next;
+    }
+#endif
     lv_img_set_src(obj, &gifobj->imgdsc);
 
     lv_timer_resume(gifobj->timer);
@@ -121,6 +178,17 @@ static void lv_gif_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
     lv_gif_t * gifobj = (lv_gif_t *) obj;
     lv_img_cache_invalidate_src(&gifobj->imgdsc);
     gd_close_gif(gifobj->gif);
+#if LV_GIF_CACHE
+    while (gifobj->canvas_list) {
+        lv_gif_canvas_t *next = gifobj->canvas_list->next;
+        if (gifobj->canvas_list->data)
+            free(gifobj->canvas_list->data);
+        free(gifobj->canvas_list);
+        gifobj->canvas_list = next;
+    }
+    gifobj->canvas_list = NULL;
+    gifobj->canvas_cur = NULL;
+#endif
     lv_timer_del(gifobj->timer);
 }
 
@@ -133,6 +201,15 @@ static void next_frame_task_cb(lv_timer_t * t)
 
     gifobj->last_call = lv_tick_get();
 
+#if LV_GIF_CACHE
+    if (gifobj->canvas_cur->next) {
+        gifobj->canvas_cur = gifobj->canvas_cur->next;
+    } else {
+        gifobj->canvas_cur = gifobj->canvas_list;
+    }
+    if (gifobj->canvas_cur)
+        gifobj->imgdsc.data = gifobj->canvas_cur->data;
+#else
     int has_next = gd_get_frame(gifobj->gif);
     if(has_next == 0) {
         /*It was the last repeat*/
@@ -147,7 +224,7 @@ static void next_frame_task_cb(lv_timer_t * t)
     }
 
     gd_render_frame(gifobj->gif, (uint8_t *)gifobj->imgdsc.data);
-
+#endif
     lv_img_cache_invalidate_src(lv_img_get_src(obj));
     lv_obj_invalidate(obj);
 }
diff --git a/src/extra/libs/gif/lv_gif.h b/src/extra/libs/gif/lv_gif.h
index d8c93db..1ea6564 100644
--- a/src/extra/libs/gif/lv_gif.h
+++ b/src/extra/libs/gif/lv_gif.h
@@ -26,6 +26,12 @@ extern "C" {
 /**********************
  *      TYPEDEFS
  **********************/
+#if LV_GIF_CACHE
+typedef struct lv_gif_canvas {
+    uint8_t *data;
+    struct lv_gif_canvas *next;
+} lv_gif_canvas_t;
+#endif
 
 typedef struct {
     lv_img_t img;
@@ -33,6 +39,10 @@ typedef struct {
     lv_timer_t * timer;
     lv_img_dsc_t imgdsc;
     uint32_t last_call;
+#if LV_GIF_CACHE
+    lv_gif_canvas_t *canvas_list;
+    lv_gif_canvas_t *canvas_cur;
+#endif
 } lv_gif_t;
 
 extern const lv_obj_class_t lv_gif_class;
-- 
2.7.4