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Imported from libpng-1.2.30rc06.tar

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This commit is contained in:
Glenn Randers-Pehrson
2008-07-29 19:08:32 -05:00
parent 84d5d968a6
commit d9b4c01719
62 changed files with 152 additions and 166 deletions
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12
pngpread.c
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@@ -1,7 +1,7 @@
/* pngpread.c - read a png file in push mode
*
* Last changed in libpng 1.2.30 [July 25, 2008]
* Last changed in libpng 1.2.30 [July 30, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -212,6 +212,7 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
png_ptr->push_length = png_get_uint_31(png_ptr, chunk_length);
png_reset_crc(png_ptr);
png_crc_read(png_ptr, png_ptr->chunk_name, 4);
png_check_chunk_name(png_ptr, png_ptr->chunk_name);
png_ptr->mode |= PNG_HAVE_CHUNK_HEADER;
}
@@ -221,10 +222,10 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
if (!png_memcmp(png_ptr->chunk_name, png_IHDR, 4))
{
if (png_ptr->push_length != 13)
png_error(png_ptr, "Invalid IHDR length");
if (png_ptr->push_length + 4 > png_ptr->buffer_size)
{
if (png_ptr->push_length != 13)
png_error(png_ptr, "Invalid IHDR length");
png_push_save_buffer(png_ptr);
return;
}
@@ -598,6 +599,7 @@ png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length)
}
}
void /* PRIVATE */
png_push_save_buffer(png_structp png_ptr)
{
@@ -1463,10 +1465,6 @@ png_push_handle_unknown(png_structp png_ptr, png_infop info_ptr, png_uint_32
length)
{
png_uint_32 skip = 0;
#if 0
/* Redundant? */
png_check_chunk_name(png_ptr, png_ptr->chunk_name);
#endif
if (!(png_ptr->chunk_name[0] & 0x20))
{