From: Michal Szczecinski <m.szczecinsk@partner.samsung.com>
Date: Wed, 30 Oct 2024 14:10:24 +0000 (+0100)
Subject: evas: support 9-patch files with grayscale defined borders
X-Git-Tag: accepted/tizen/unified/20241108.105431^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fheads%2Faccepted%2Ftizen_unified;p=platform%2Fupstream%2Fefl.git

evas: support 9-patch files with grayscale defined borders

Fixed 9-patch images support. In some files used in Tizen we noticed
black or grayscale defined 9-patch borders. This patch fixed issue with
loading them.

Change-Id: I1becf164cee8705201a3d03ab93b8fc5ce644798
---

diff --git a/src/modules/evas/image_loaders/webp/evas_image_load_webp.c b/src/modules/evas/image_loaders/webp/evas_image_load_webp.c
index d1478d3..bb1551d 100644
--- a/src/modules/evas/image_loaders/webp/evas_image_load_webp.c
+++ b/src/modules/evas/image_loaders/webp/evas_image_load_webp.c
@@ -180,12 +180,15 @@ _evas_image_webp_update_y_content(Eina_Rectangle *r, int index)
         r->h = index - r->y;
      }
 }
-//TIZEN_ONLY(20240215): Support 9-patch files with non-black borders
+//TIZEN_ONLY(20241030): evas: support 9-patch files with grayscale defined borders
 static inline Eina_Bool
-_is_color(DATA32 *ptr)
+_is_grayscale(DATA32 *ptr)
 {
-   if (*ptr == 0) return EINA_FALSE;
-   return EINA_TRUE;
+    uint8_t r = (*ptr >> 16) & 0xFF;
+    uint8_t g = (*ptr >> 8) & 0xFF;
+    uint8_t b = (*ptr) & 0xFF;
+    uint8_t a = (*ptr >> 24) & 0xFF;
+    return (r == g) && (g == b) && (a == 0xFF);
 }
 
 static Eina_Bool
@@ -420,9 +423,9 @@ evas_image_load_file_head_with_data_webp(void *loader_data,
         for (i = 1; i < image_w - 1;
              i++, src_ptr1++, src_ptr2++)
           {
-             //TIZEN_ONLY(20240215): Support 9-patch files with non-black borders
-             Eina_Bool bp1 = _is_color(src_ptr1);
-             Eina_Bool bp2 = _is_color(src_ptr2);
+             //TIZEN_ONLY(20241030): evas: support 9-patch files with grayscale defined borders
+             Eina_Bool bp1 = _is_grayscale(src_ptr1);
+             Eina_Bool bp2 = _is_grayscale(src_ptr2);
 
              // Updating horizontal area where content can be located
              if (bp2)
@@ -468,9 +471,9 @@ evas_image_load_file_head_with_data_webp(void *loader_data,
         for (i = 1; i < image_h - 1;
              i++, src_ptr1 += image_w, src_ptr2 += image_w)
           {
-             //TIZEN_ONLY(20240215): Support 9-patch files with non-black borders
-             Eina_Bool bp1 = _is_color(src_ptr1);
-             Eina_Bool bp2 = _is_color(src_ptr2);
+             //TIZEN_ONLY(20241030): evas: support 9-patch files with grayscale defined borders
+             Eina_Bool bp1 = _is_grayscale(src_ptr1);
+             Eina_Bool bp2 = _is_grayscale(src_ptr2);
 
              // Updating vertical area where content can be located
              if (bp2)