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[libpng10] Imported from libpng-1.0.48.tar

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This commit is contained in:
Glenn Randers-Pehrson
2009-08-13 06:12:26 -05:00
parent 1e73a532f5
commit e058ce14ea
53 changed files with 2138 additions and 3591 deletions
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17
pngwutil.c
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@@ -1,7 +1,7 @@
/* pngwutil.c - utilities to write a PNG file
*
* Last changed in libpng 1.2.37 [June 4, 2009]
* Last changed in libpng 1.2.39 [August 13, 2009]
* Copyright (c) 1998-2009 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -788,6 +788,14 @@ png_write_iCCP(png_structp png_ptr, png_charp name, int compression_type,
((*( (png_bytep)profile + 2))<< 8) |
((*( (png_bytep)profile + 3)) );
if (embedded_profile_len < 0)
{
png_warning(png_ptr,
"Embedded profile length in iCCP chunk is negative");
png_free(png_ptr, new_name);
return;
}
if (profile_len < embedded_profile_len)
{
png_warning(png_ptr,
@@ -2119,9 +2127,12 @@ png_write_find_filter(png_structp png_ptr, png_row_infop row_info)
png_uint_32 mins, bpp;
png_byte filter_to_do = png_ptr->do_filter;
png_uint_32 row_bytes = row_info->rowbytes;
#if defined(PNG_WRITE_WEIGHTED_FILTER_SUPPORTED)
#ifdef PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
int num_p_filters = (int)png_ptr->num_prev_filters;
#endif
#endif
png_debug(1, "in png_write_find_filter");
png_debug(1, "in png_write_find_filter");
/* Find out how many bytes offset each pixel is */