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Imported from libpng-1.0.1e.tar

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This commit is contained in:
Glenn Randers-Pehrson
1998-06-06 15:31:35 -05:00
parent 8686fff347
commit f7d1a17033
33 changed files with 782 additions and 258 deletions
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12
pngrio.c
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@@ -1,12 +1,11 @@
/* pngrio.c - functions for data input
*
* libpng 1.0.1d
* libpng 1.0.1e - June 6, 1998
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson
* May 21, 1998
*
* This file provides a location for all input. Users who need
* special handling are expected to write a function that has the same
@@ -136,7 +135,14 @@ png_set_read_fn(png_structp png_ptr, png_voidp io_ptr,
#endif
/* It is an error to write to a read device */
png_ptr->write_data_fn = NULL;
if (png_ptr->write_data_fn != NULL)
{
png_ptr->write_data_fn = NULL;
png_warning(png_ptr,
"It's an error to set both read_data_fn and write_data_fn in the ");
png_warning(png_ptr,
"same structure. Resetting write_data_fn to NULL.");
}
#if defined(PNG_WRITE_FLUSH_SUPPORTED)
png_ptr->output_flush_fn = NULL;