imlib2: use giflib instead of soon to be deprecated libungif

Add three upstream patch to support giflib version 5.1

Also rename the previous patches to match the order of the commits in
the upstream master branch.

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/imlib2/0001-GIF-loader-Fix-for-libgif-version-5.patch

@@ -0,0 +1,43 @@
+From 17bf7bf95da6ed5b522205c321efcf838c48b13d Mon Sep 17 00:00:00 2001
+From: Kim Woelders <kim@woelders.dk>
+Date: Sun, 4 Aug 2013 08:05:27 +0200
+Subject: [PATCH 1/5] GIF loader: Fix for libgif version 5.
+
+---
+ src/modules/loaders/loader_gif.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git a/src/modules/loaders/loader_gif.c b/src/modules/loaders/loader_gif.c
+index 23b8fd0..d1c2ae2 100644
+--- a/src/modules/loaders/loader_gif.c
++++ b/src/modules/loaders/loader_gif.c
+@@ -29,6 +29,7 @@ load(ImlibImage * im, ImlibProgressFunction progress, char progress_granularity,
+    /* already data in this image - dont load it again */
+    if (im->data)
+       return 0;
++
+ #ifndef __EMX__
+    fd = open(im->real_file, O_RDONLY);
+ #else
+@@ -36,12 +37,18 @@ load(ImlibImage * im, ImlibProgressFunction progress, char progress_granularity,
+ #endif
+    if (fd < 0)
+       return 0;
++
++#if GIFLIB_MAJOR >= 5
++   gif = DGifOpenFileHandle(fd, NULL);
++#else
+    gif = DGifOpenFileHandle(fd);
++#endif
+    if (!gif)
+      {
+         close(fd);
+         return 0;
+      }
++
+    do
+      {
+         if (DGifGetRecordType(gif, &rec) == GIF_ERROR)
+-- 
+2.3.1
+

package/imlib2/0002-GIF-loader-Simplify-error-handling.patch

@@ -0,0 +1,175 @@
+From 908a179726d010963f4fe1b57fb5f7bf590d7d64 Mon Sep 17 00:00:00 2001
+From: Kim Woelders <kim@woelders.dk>
+Date: Tue, 31 Dec 2013 18:13:45 +0100
+Subject: [PATCH 2/5] GIF loader: Simplify error handling.
+
+Also:
+- Fix memory leak when image data allocation fails.
+- Some aux data arrays may as well be const.
+---
+ src/modules/loaders/loader_gif.c | 80 ++++++++++++++++------------------------
+ 1 file changed, 32 insertions(+), 48 deletions(-)
+
+diff --git a/src/modules/loaders/loader_gif.c b/src/modules/loaders/loader_gif.c
+index d1c2ae2..a39c860 100644
+--- a/src/modules/loaders/loader_gif.c
++++ b/src/modules/loaders/loader_gif.c
+@@ -8,6 +8,9 @@ char
+ load(ImlibImage * im, ImlibProgressFunction progress, char progress_granularity,
+      char immediate_load)
+ {
++   static const int    intoffset[] = { 0, 4, 2, 1 };
++   static const int    intjump[] = { 8, 8, 4, 2 };
++   int                 rc;
+    DATA32             *ptr;
+    GifFileType        *gif;
+    GifRowType         *rows;
+@@ -16,8 +19,6 @@ load(ImlibImage * im, ImlibProgressFunction progress, char progress_granularity,
+    int                 i, j, done, bg, r, g, b, w = 0, h = 0;
+    float               per = 0.0, per_inc;
+    int                 last_per = 0, last_y = 0;
+-   int                 intoffset[] = { 0, 4, 2, 1 };
+-   int                 intjump[] = { 8, 8, 4, 2 };
+    int                 transp;
+    int                 fd;
+ 
+@@ -49,6 +50,8 @@ load(ImlibImage * im, ImlibProgressFunction progress, char progress_granularity,
+         return 0;
+      }
+ 
++   rc = 0;                      /* Failure */
++
+    do
+      {
+         if (DGifGetRecordType(gif, &rec) == GIF_ERROR)
+@@ -66,37 +69,19 @@ load(ImlibImage * im, ImlibProgressFunction progress, char progress_granularity,
+              w = gif->Image.Width;
+              h = gif->Image.Height;
+              if (!IMAGE_DIMENSIONS_OK(w, h))
+-               {
+-                  DGifCloseFile(gif);
+-                  return 0;
+-               }
+-             rows = malloc(h * sizeof(GifRowType *));
++                goto quit2;
++
++             rows = calloc(h, sizeof(GifRowType *));
+              if (!rows)
+-               {
+-                  DGifCloseFile(gif);
+-                  return 0;
+-               }
+-             for (i = 0; i < h; i++)
+-               {
+-                  rows[i] = NULL;
+-               }
++                goto quit2;
++
+              for (i = 0; i < h; i++)
+                {
+                   rows[i] = malloc(w * sizeof(GifPixelType));
+                   if (!rows[i])
+-                    {
+-                       DGifCloseFile(gif);
+-                       for (i = 0; i < h; i++)
+-                         {
+-                            if (rows[i])
+-                              {
+-                                 free(rows[i]);
+-                              }
+-                         }
+-                       free(rows);
+-                       return 0;
+-                    }
++                     goto quit;
+                }
++
+              if (gif->Image.Interlace)
+                {
+                   for (i = 0; i < 4; i++)
+@@ -135,6 +120,7 @@ load(ImlibImage * im, ImlibProgressFunction progress, char progress_granularity,
+           }
+      }
+    while (rec != TERMINATE_RECORD_TYPE);
++
+    if (transp >= 0)
+      {
+         SET_FLAG(im->flags, F_HAS_ALPHA);
+@@ -143,6 +129,7 @@ load(ImlibImage * im, ImlibProgressFunction progress, char progress_granularity,
+      {
+         UNSET_FLAG(im->flags, F_HAS_ALPHA);
+      }
++
+    /* set the format string member to the lower-case full extension */
+    /* name for the format - so example names would be: */
+    /* "png", "jpeg", "tiff", "ppm", "pgm", "pbm", "gif", "xpm" ... */
+@@ -150,17 +137,15 @@ load(ImlibImage * im, ImlibProgressFunction progress, char progress_granularity,
+    im->h = h;
+    if (!im->format)
+       im->format = strdup("gif");
++
+    if (im->loader || immediate_load || progress)
+      {
+         bg = gif->SBackGroundColor;
+         cmap = (gif->Image.ColorMap ? gif->Image.ColorMap : gif->SColorMap);
+         im->data = (DATA32 *) malloc(sizeof(DATA32) * w * h);
+         if (!im->data)
+-          {
+-             DGifCloseFile(gif);
+-             free(rows);
+-             return 0;
+-          }
++           goto quit;
++
+         ptr = im->data;
+         per_inc = 100.0 / (((float)w) * h);
+         for (i = 0; i < h; i++)
+@@ -188,30 +173,29 @@ load(ImlibImage * im, ImlibProgressFunction progress, char progress_granularity,
+                        last_per = (int)per;
+                        if (!(progress(im, (int)per, 0, last_y, w, i)))
+                          {
+-                            DGifCloseFile(gif);
+-                            for (i = 0; i < h; i++)
+-                              {
+-                                 free(rows[i]);
+-                              }
+-                            free(rows);
+-                            return 2;
++                            rc = 2;
++                            goto quit;
+                          }
+                        last_y = i;
+                     }
+                }
+           }
++
++        if (progress)
++           progress(im, 100, 0, last_y, w, h);
+      }
+-   if (progress)
+-     {
+-        progress(im, 100, 0, last_y, w, h);
+-     }
+-   DGifCloseFile(gif);
++
++   rc = 1;                      /* Success */
++
++ quit:
+    for (i = 0; i < h; i++)
+-     {
+-        free(rows[i]);
+-     }
++      free(rows[i]);
+    free(rows);
+-   return 1;
++
++ quit2:
++   DGifCloseFile(gif);
++
++   return rc;
+ }
+ 
+ void
+-- 
+2.3.1
+

package/imlib2/0001-fix-X_DISPLAY_MISSING-redefined-warnings-when-X-is-d.patch → package/imlib2/0003-fix-X_DISPLAY_MISSING-redefined-warnings-when-X-is-d.patch

@@ -1,7 +1,7 @@
-From 49e3034ab714c9f05a6c0a04cf85ecbdb65c02d5 Mon Sep 17 00:00:00 2001
+From aaf62d4c605726e6c5f6869bd6834eca03c50d9c Mon Sep 17 00:00:00 2001
 From: Mike Frysinger <vapier@gentoo.org>
 Date: Mon, 28 Jul 2014 22:59:35 -0400
-Subject: [PATCH 1/2] fix X_DISPLAY_MISSING redefined warnings when X is
+Subject: [PATCH 3/5] fix X_DISPLAY_MISSING redefined warnings when X is
  disabled
 
 This is set up in config.h by configure, so avoid defining it again.

package/imlib2/0002-do-not-link-with-X-libs-when-X-is-disabled.patch → package/imlib2/0004-do-not-link-with-X-libs-when-X-is-disabled.patch

@@ -1,7 +1,7 @@
-From f5caf5432609938794d7a72afe059cfcfccd38bf Mon Sep 17 00:00:00 2001
+From c7f6ae523bbe165e50c44c21744f56f6f4b575c5 Mon Sep 17 00:00:00 2001
 From: Mike Frysinger <vapier@gentoo.org>
 Date: Mon, 28 Jul 2014 23:01:23 -0400
-Subject: [PATCH 2/2] do not link with X libs when X is disabled
+Subject: [PATCH 4/5] do not link with X libs when X is disabled
 
 URL: https://bugs.gentoo.org/517670
 ---

package/imlib2/0005-GIF-loader-Fix-for-libgif-version-5.1.patch

@@ -0,0 +1,44 @@
+From 8531957235f8702f8bdafac31059812d66e95c23 Mon Sep 17 00:00:00 2001
+From: Heiko Becker <heirecka@exherbo.org>
+Date: Mon, 13 Oct 2014 17:41:25 +0200
+Subject: [PATCH 5/5] GIF loader: Fix for libgif version 5.1
+
+Summary:
+From giflib-5.1.0's NEWS:
+"A small change to the API: DGifClose() and EGifClose() now take a
+pointer-to-int second argument (like the corresponding openers)
+where a diagnostic code will be deposited when they return
+GIF_ERROR."
+
+Test Plan:
+I've built imlib2 against giflib-4.2.3 and 5.1.0 and opened a few
+gif files with feh.
+
+Reviewers: kwo
+
+Reviewed By: kwo
+
+Differential Revision: https://phab.enlightenment.org/D1529
+---
+ src/modules/loaders/loader_gif.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/src/modules/loaders/loader_gif.c b/src/modules/loaders/loader_gif.c
+index a39c860..c53f62c 100644
+--- a/src/modules/loaders/loader_gif.c
++++ b/src/modules/loaders/loader_gif.c
+@@ -193,7 +193,11 @@ load(ImlibImage * im, ImlibProgressFunction progress, char progress_granularity,
+    free(rows);
+ 
+  quit2:
++#if GIFLIB_MAJOR > 5 || (GIFLIB_MAJOR == 5 && GIFLIB_MINOR >= 1)
++   DGifCloseFile(gif, NULL);
++#else
+    DGifCloseFile(gif);
++#endif
+ 
+    return rc;
+ }
+-- 
+2.3.1
+

package/imlib2/Config.in

@@ -23,7 +23,7 @@ config BR2_PACKAGE_IMLIB2_PNG
 
 config BR2_PACKAGE_IMLIB2_GIF
 	bool "GIF support"
-	select BR2_PACKAGE_LIBUNGIF
+	select BR2_PACKAGE_GIFLIB
 
 config BR2_PACKAGE_IMLIB2_TIFF
 	bool "TIFF support"

package/imlib2/imlib2.mk

@@ -39,7 +39,7 @@ endif
 
 ifeq ($(BR2_PACKAGE_IMLIB2_GIF),y)
 	IMLIB2_CONF_OPTS += --with-gif
-	IMLIB2_DEPENDENCIES += libungif
+	IMLIB2_DEPENDENCIES += giflib
 else
 	IMLIB2_CONF_OPTS += --without-gif
 endif