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commit f3606ef766bcec86789316a05949f1e67a51e7c1
Author: Barry Fishman <barry_fishman@acm.org>
Date: Wed Oct 9 20:37:44 2013 -0400
Handle giflib 5 changes (tiny change)
* configure.ac: Update for giflib 5.
* src/image.c (GIFLIB_MAJOR): Ensure it's defined.
(DGifOpen, DGifOpenFileName): Handle giflib 5 syntax. (Bug#15531)
commit be316ede5fffb724852ee225489e70778d240bb0
Author: Paul Eggert <eggert@cs.ucla.edu>
Date: Tue Jan 7 13:14:32 2014 -0800
Fix misdisplay of interlaced GIFs with libgif5.
* image.c (gif_load): libgif5 deinterlaces for us, so don't do
it again.
Fixes: debbugs:16372
--- a/configure.ac
+++ b/configure.ac
@@ -2674,8 +2674,9 @@
|| test "${HAVE_W32}" = "yes"; then
AC_CHECK_HEADER(gif_lib.h,
# EGifPutExtensionLast only exists from version libungif-4.1.0b1.
-# Earlier versions can crash Emacs.
- [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
+# Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
+ [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
+ [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
if test "$HAVE_GIF" = yes; then
LIBGIF=-lgif
--- a/src/image.c
+++ b/src/image.c
@@ -7095,14 +7095,25 @@
#endif /* HAVE_NTGUI */
+#ifndef GIFLIB_MAJOR
+#define GIFLIB_MAJOR 0
+#endif
+#ifndef GIFLIB_MINOR
+#define GIFLIB_MINOR 0
+#endif
#ifdef WINDOWSNT
/* GIF library details. */
DEF_IMGLIB_FN (int, DGifCloseFile, (GifFileType *));
DEF_IMGLIB_FN (int, DGifSlurp, (GifFileType *));
+#if GIFLIB_MAJOR < 5
DEF_IMGLIB_FN (GifFileType *, DGifOpen, (void *, InputFunc));
DEF_IMGLIB_FN (GifFileType *, DGifOpenFileName, (const char *));
+#else
+DEF_IMGLIB_FN (GifFileType *, DGifOpen, (void *, InputFunc, int *));
+DEF_IMGLIB_FN (GifFileType *, DGifOpenFileName, (const char *, int *));
+#endif
static bool
init_gif_functions (void)
@@ -7192,7 +7203,11 @@
}
/* Open the GIF file. */
+#if GIFLIB_MAJOR < 5
gif = fn_DGifOpenFileName (SSDATA (file));
+#else
+ gif = fn_DGifOpenFileName (SSDATA (file), NULL);
+#endif
if (gif == NULL)
{
image_error ("Cannot open `%s'", file, Qnil);
@@ -7213,7 +7228,11 @@
memsrc.len = SBYTES (specified_data);
memsrc.index = 0;
+#if GIFLIB_MAJOR < 5
gif = fn_DGifOpen (&memsrc, gif_read_from_memory);
+#else
+ gif = fn_DGifOpen (&memsrc, gif_read_from_memory, NULL);
+#endif
if (!gif)
{
image_error ("Cannot open memory source `%s'", img->spec, Qnil);
@@ -7225,7 +7244,11 @@
if (!check_image_size (f, gif->SWidth, gif->SHeight))
{
image_error ("Invalid image size (see `max-image-size')", Qnil, Qnil);
+#if GIFLIB_MAJOR < 5 || (GIFLIB_MAJOR == 5 && GIFLIB_MINOR == 0)
fn_DGifCloseFile (gif);
+#else
+ fn_DGifCloseFile (gif, NULL);
+#endif
return 0;
}
@@ -7234,7 +7257,11 @@
if (rc == GIF_ERROR || gif->ImageCount <= 0)
{
image_error ("Error reading `%s'", img->spec, Qnil);
+#if GIFLIB_MAJOR < 5 || (GIFLIB_MAJOR == 5 && GIFLIB_MINOR == 0)
fn_DGifCloseFile (gif);
+#else
+ fn_DGifCloseFile (gif, NULL);
+#endif
return 0;
}
@@ -7246,7 +7273,11 @@
{
image_error ("Invalid image number `%s' in image `%s'",
image_number, img->spec);
+#if GIFLIB_MAJOR < 5 || (GIFLIB_MAJOR == 5 && GIFLIB_MINOR == 0)
fn_DGifCloseFile (gif);
+#else
+ fn_DGifCloseFile (gif, NULL);
+#endif
return 0;
}
}
@@ -7264,14 +7295,22 @@
if (!check_image_size (f, width, height))
{
image_error ("Invalid image size (see `max-image-size')", Qnil, Qnil);
+#if GIFLIB_MAJOR < 5 || (GIFLIB_MAJOR == 5 && GIFLIB_MINOR == 0)
fn_DGifCloseFile (gif);
+#else
+ fn_DGifCloseFile (gif, NULL);
+#endif
return 0;
}
/* Create the X image and pixmap. */
if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap))
{
+#if GIFLIB_MAJOR < 5 || (GIFLIB_MAJOR == 5 && GIFLIB_MINOR == 0)
fn_DGifCloseFile (gif);
+#else
+ fn_DGifCloseFile (gif, NULL);
+#endif
return 0;
}
@@ -7370,7 +7409,7 @@
}
/* Apply the pixel values. */
- if (gif->SavedImages[j].ImageDesc.Interlace)
+ if (GIFLIB_MAJOR < 5 && gif->SavedImages[j].ImageDesc.Interlace)
{
int row, pass;
@@ -7447,7 +7486,11 @@
Fcons (make_number (gif->ImageCount),
img->lisp_data));
+#if GIFLIB_MAJOR < 5 || (GIFLIB_MAJOR == 5 && GIFLIB_MINOR == 0)
fn_DGifCloseFile (gif);
+#else
+ fn_DGifCloseFile (gif, NULL);
+#endif
/* Maybe fill in the background field while we have ximg handy. */
if (NILP (image_spec_value (img->spec, QCbackground, NULL)))
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