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load_image: always print a message on failure if filename is not empty

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It was rather inconsistent before. This may help users figure out why
backgrounds and icons don't show up. A better api where the error can
be queried might be nice, but this seems sufficient for current Weston use.

[Pekka Paalanen: removed one stray space.]

Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This commit is contained in:
Bill Spitzak 2014-08-19 18:13:10 -07:00 committed by Pekka Paalanen
parent 3011493e9b
commit 28371f7d55
1 changed files with 13 additions and 3 deletions
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16
shared/image-loader.c
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@ -23,6 +23,7 @@
#include "config.h"
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
@ -374,12 +375,18 @@ load_image(const char *filename)
FILE *fp;
unsigned int i;
fp = fopen(filename, "rb");
if (fp == NULL)
if (!filename || !*filename)
return NULL;
fp = fopen(filename, "rb");
if (!fp) {
fprintf(stderr, "%s: %s\n", filename, strerror(errno));
return NULL;
}
if (fread(header, sizeof header, 1, fp) != 1) {
fclose(fp);
fprintf(stderr, "%s: unable to read file header\n", filename);
return NULL;
}
@ -395,10 +402,13 @@ load_image(const char *filename)
fclose(fp);
if (i == ARRAY_LENGTH(loaders)) {
fprintf(stderr, "unrecognized file header for %s: "
fprintf(stderr, "%s: unrecognized file header "
"0x%02x 0x%02x 0x%02x 0x%02x\n",
filename, header[0], header[1], header[2], header[3]);
image = NULL;
} else if (!image) {
/* load probably printed something, but just in case */
fprintf(stderr, "%s: error reading image\n", filename);
}
return image;