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update libpng

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update libpng, the repo now requires a vcpkg setup for integrating but skipping the install step should allow it to work for windows an linux, mac might need more
This commit is contained in:
marauder2k7 2025-12-31 20:11:14 +00:00
parent c593d860a0
commit 5d644b4ffb
300 changed files with 25573 additions and 17698 deletions
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28
Engine/lib/lpng/contrib/examples/iccfrompng.c
View file

@ -26,8 +26,9 @@
#include <png.h>
#if defined(PNG_READ_SUPPORTED) && defined(PNG_STDIO_SUPPORTED) && \
defined (PNG_iCCP_SUPPORTED)
#if !defined(PNG_iCCP_SUPPORTED) || !defined(PNG_READ_SUPPORTED)
#error This program requires libpng supporting the iCCP chunk and the read API
#endif
static int verbose = 1;
@ -36,7 +37,8 @@ static png_byte no_profile[] = "no profile";
static png_bytep
extract(FILE *fp, png_uint_32 *proflen)
{
png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,0,0,0);
png_structp png_ptr =
png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
png_infop info_ptr = NULL;
png_bytep result = NULL;
@ -69,7 +71,7 @@ extract(FILE *fp, png_uint_32 *proflen)
png_bytep profile;
if (png_get_iCCP(png_ptr, info_ptr, &name, &compression_type, &profile,
proflen) & PNG_INFO_iCCP)
proflen) & PNG_INFO_iCCP)
{
result = malloc(*proflen);
if (result != NULL)
@ -80,7 +82,7 @@ extract(FILE *fp, png_uint_32 *proflen)
}
else
result = no_profile;
result = no_profile;
}
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
@ -107,7 +109,7 @@ extract_one_file(const char *filename)
const char *ep = strrchr(filename, '.');
if (ep != NULL)
len = ep-filename;
len = ep - filename;
else
len = strlen(filename);
@ -119,14 +121,14 @@ extract_one_file(const char *filename)
FILE *of;
memcpy(output, filename, len);
strcpy(output+len, ".icc");
strcpy(output + len, ".icc");
of = fopen(output, "wb");
if (of != NULL)
{
if (fwrite(profile, proflen, 1, of) == 1 &&
fflush(of) == 0 &&
fclose(of) == 0)
fflush(of) == 0 &&
fclose(of) == 0)
{
if (verbose)
printf("%s -> %s\n", filename, output);
@ -155,12 +157,15 @@ extract_one_file(const char *filename)
}
else if (verbose && profile == no_profile)
printf("%s has no profile\n", filename);
printf("%s has no profile\n", filename);
}
else
fprintf(stderr, "%s: could not open file\n", filename);
if (fp != NULL)
fclose(fp);
return result;
}
@ -170,7 +175,7 @@ main(int argc, char **argv)
int i;
int extracted = 0;
for (i=1; i<argc; ++i)
for (i = 1; i < argc; ++i)
{
if (strcmp(argv[i], "-q") == 0)
verbose = 0;
@ -182,4 +187,3 @@ main(int argc, char **argv)
/* Exit code is true if any extract succeeds */
return extracted == 0;
}
#endif /* READ && STDIO && iCCP */