mewin/libpng
1
0
Fork 0
mirror of https://git.code.sf.net/p/libpng/code.git synced 2025-07-10 18:04:09 +02:00
Code Issues Projects Releases Wiki Activity

[libng16] Added checksum-icc.c to contrib/libtests

Browse Source
This commit is contained in:
John Bowler 2012-03-22 07:36:13 -05:00 committed by Glenn Randers-Pehrson
parent f7677a348e
commit 51d1e2be1b
3 changed files with 94 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
ANNOUNCE
View File

@ -1,5 +1,5 @@
Libpng 1.6.0beta20 - March 21, 2012 Libpng 1.6.0beta20 - March 22, 2012
This is not intended to be a public release. It will be replaced This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version. within a few weeks by a public version or by another test version.
@ -339,10 +339,11 @@ Version 1.6.0beta19 [March 18,2012]
Avoid the double gamma correction warning in the simplified API. Avoid the double gamma correction warning in the simplified API.
This allows the --strict option to pass in the pngstest checks This allows the --strict option to pass in the pngstest checks
Version 1.6.0beta20 [March 21, 2012] Version 1.6.0beta20 [March 22, 2012]
Changed chunk handler warnings into benign errors, incrementally load iCCP Changed chunk handler warnings into benign errors, incrementally load iCCP
Recognize known sRGB ICC profiles while reading and handle them as if the Recognize known sRGB ICC profiles while reading and handle them as if the
sRGB chunk had appeared instead. sRGB chunk had appeared instead.
Added checksum-icc.c to contrib/libtests
Send comments/corrections/commendations to png-mng-implement at lists.sf.net Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit (subscription required; visit

3
CHANGES
View File

@ -4090,10 +4090,11 @@ Version 1.6.0beta19 [March 18, 2012]
Avoid the double gamma correction warning in the simplified API. Avoid the double gamma correction warning in the simplified API.
This allows the --strict option to pass in the pngstest checks This allows the --strict option to pass in the pngstest checks
Version 1.6.0beta20 [March 21, 2012] Version 1.6.0beta20 [March 22, 2012]
Changed chunk handler warnings into benign errors, incrementally load iCCP Changed chunk handler warnings into benign errors, incrementally load iCCP
Recognize known sRGB ICC profiles while reading and handle them as if the Recognize known sRGB ICC profiles while reading and handle them as if the
sRGB chunk had appeared instead. sRGB chunk had appeared instead.
Added checksum-icc.c to contrib/libtests
Send comments/corrections/commendations to png-mng-implement at lists.sf.net Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit (subscription required; visit

89
contrib/libtests/checksum-icc.c Normal file
View File

@ -0,0 +1,89 @@
/* checksum-icc.c
*
* Copyright (c) 2012 John Cunningham Bowler
*
* Last changed in libpng 1.6.0 [(PENDING RELEASE)]
*
* This code is released under the libpng license.
* For conditions of distribution and use, see the disclaimer
* and license in png.h
*
* Generate crc32 and adler32 checksums of the given input files, used to
* generate check-codes for use when matching ICC profiles within libpng.
*/
#include <stdio.h>
#include <zlib.h>
static int
read_one_file(FILE *ip, const char *name)
{
uLong length = 0;
uLong a32 = adler32(0, NULL, 0);
uLong c32 = crc32(0, NULL, 0);
for (;;)
{
int ch = getc(ip);
Byte b;
if (ch == EOF) break;
b = (Byte)ch;
++length;
a32 = adler32(a32, &b, 1);
c32 = crc32(c32, &b, 1);
}
if (ferror(ip))
return 0;
/* Success */
printf("{ 0x%8.8lx, 0x%8.8lx, %lu, \"%s\" },\n", (unsigned long)a32,
(unsigned long)c32, (unsigned long)length, name);
return 1;
}
int main(int argc, char **argv)
{
int err = 0;
printf("= { /* adler32 crc32 length name */\n");
if (argc > 1)
{
int i;
for (i=1; i<argc; ++i)
{
FILE *ip = fopen(argv[i], "rb");
if (ip == NULL || !read_one_file(ip, argv[i]))
{
err = 1;
perror(argv[i]);
fprintf(stderr, "%s: read error\n", argv[i]);
printf(" { 0, 0, 0, /* ERROR: */, \"%s\" },\n", argv[i]);
}
(void)fclose(ip);
}
}
else
{
if (!read_one_file(stdin, "-"))
{
err = 1;
perror("stdin");
fprintf(stderr, "stdin: read error\n");
printf(" { 0, 0, 0, /* ERROR: */, \"-\" },\n");
}
}
printf("};\n");
return err;
}