Imported from libpng-1.2.8beta4.tar
diff --git a/pngwutil.c b/pngwutil.c
index 04abe88..d4beac2 100644
--- a/pngwutil.c
+++ b/pngwutil.c
@@ -1,7 +1,7 @@
/* pngwutil.c - utilities to write a PNG file
*
- * libpng version 1.2.8beta3 - November 3, 2004
+ * libpng version 1.2.8beta4 - November 13, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2004 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -357,9 +357,9 @@
png_write_chunk_data(png_ptr, png_ptr->zbuf,
png_ptr->zbuf_size - png_ptr->zstream.avail_out);
- /* reset zlib for another zTXt/iTXt or the image data */
+ /* reset zlib for another zTXt/iTXt or image data */
deflateReset(&png_ptr->zstream);
-
+ png_ptr->zstream.data_type = Z_BINARY;
}
#endif
@@ -523,6 +523,9 @@
png_ptr->zlib_mem_level, png_ptr->zlib_strategy);
png_ptr->zstream.next_out = png_ptr->zbuf;
png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size;
+ /* libpng is not interested in zstream.data_type */
+ /* set it to a predefined value, to avoid its evaluation inside zlib */
+ png_ptr->zstream.data_type = Z_BINARY;
png_ptr->mode = PNG_HAVE_IHDR;
}
@@ -1871,6 +1874,7 @@
}
deflateReset(&png_ptr->zstream);
+ png_ptr->zstream.data_type = Z_BINARY;
}
#if defined(PNG_WRITE_INTERLACING_SUPPORTED)