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[libpng10] Imported from libpng-1.0.21rc1.tar

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This commit is contained in:
Glenn Randers-Pehrson
2006-11-07 20:08:18 -06:00
parent fba872492b
commit 6fbb54d253
48 changed files with 195 additions and 1147 deletions
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21
pngwutil.c
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@@ -1,7 +1,7 @@
/* pngwutil.c - utilities to write a PNG file
*
* Last changed in libpng 1.2.11 June 4, 2006
* Last changed in libpng 1.2.13 July 20, 2006
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2006 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -728,6 +728,7 @@ png_write_iCCP(png_structp png_ptr, png_charp name, int compression_type,
png_size_t name_len;
png_charp new_name;
compression_state comp;
int embedded_profile_len = 0;
png_debug(1, "in png_write_iCCP\n");
@@ -750,6 +751,24 @@ png_write_iCCP(png_structp png_ptr, png_charp name, int compression_type,
if (profile == NULL)
profile_len = 0;
if (profile_len > 3)
embedded_profile_len = ((*(profile ))<<24) | ((*(profile+1))<<16) |
((*(profile+2))<< 8) | ((*(profile+3)) );
if (profile_len < embedded_profile_len)
{
png_warning(png_ptr,
"Embedded profile length too large in iCCP chunk");
return;
}
if (profile_len > embedded_profile_len)
{
png_warning(png_ptr,
"Truncating profile to actual length in iCCP chunk");
profile_len = embedded_profile_len;
}
if (profile_len)
profile_len = png_text_compress(png_ptr, profile, (png_size_t)profile_len,
PNG_COMPRESSION_TYPE_BASE, &comp);