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GIL: fixed a endian-ness related bug in PNG IO routines

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[SVN r38705]
This commit is contained in:
Hailin Jin
2007-08-15 22:21:06 +00:00
parent a2ddafd181
commit fd70ef69e7
1 changed files with 5 additions and 1 deletions
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6
include/boost/gil/extension/io/png_io_private.hpp
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@@ -16,7 +16,7 @@
/// \brief Internal support for reading and writing PNG files
/// \author Hailin Jin and Lubomir Bourdev \n
/// Adobe Systems Incorporated
/// \date 2005-2007 \n Last updated September 24, 2006
/// \date 2005-2007 \n Last updated August 14, 2007
#include <algorithm>
#include <vector>
@@ -162,6 +162,8 @@ protected:
png_init_io(_png_ptr, get());
png_set_sig_bytes(_png_ptr,PNG_BYTES_TO_CHECK);
png_read_info(_png_ptr, _info_ptr);
if (little_endian() && png_get_bit_depth(_png_ptr,_info_ptr)>8)
png_set_swap(_png_ptr);
}
public:
png_reader(FILE* file ) : file_mgr(file) { init(); }
@@ -337,6 +339,8 @@ public:
PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT,PNG_FILTER_TYPE_DEFAULT);
png_write_info(_png_ptr,_info_ptr);
if (little_endian() && png_get_bit_depth(_png_ptr,_info_ptr)>8)
png_set_swap(_png_ptr);
std::vector<pixel<typename channel_type<View>::type,
layout<typename color_space_type<View>::type> > > row(view.width());
for(int y=0;y<view.height();++y) {