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(current_gif_memory_src): New variable.

Browse source 
(gif_load): Record the address of the current memory source
in current_gif_memory_src.
(gif_read_from_memory): Use current_gif_memory_src.
This commit is contained in:
Gerd Moellmann 2000-01-04 21:22:24 +00:00
parent f45dd0f411
commit f036834aeb
1 changed files with 7 additions and 2 deletions
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9
src/xfns.c
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@ -9155,7 +9155,6 @@ static struct image_type gif_type =
NULL
};
/* Return non-zero if OBJECT is a valid GIF image specification. */
static int
@ -9185,13 +9184,18 @@ typedef struct
}
gif_memory_source;
/* Make the current memory source available to gif_read_from_memory.
It's done this way because not all versions of libungif support
a UserData field in the GifFileType structure. */
static gif_memory_source *current_gif_memory_src;
static int
gif_read_from_memory (file, buf, len)
GifFileType *file;
GifByteType *buf;
int len;
{
gif_memory_source *src = (gif_memory_source *) file->UserData;
gif_memory_source *src = current_gif_memory_src;
if (len > src->len - src->index)
return -1;
@ -9250,6 +9254,7 @@ gif_load (f, img)
else
{
/* Read from memory! */
current_gif_memory_src = &memsrc;
memsrc.bytes = XSTRING (specified_data)->data;
memsrc.len = STRING_BYTES (XSTRING (specified_data));
memsrc.index = 0;