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Imported from libpng-1.2.2beta5.tar

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This commit is contained in:
Glenn Randers-Pehrson
2002-03-25 18:49:08 -06:00
parent 377657d1d6
commit 73d57cb97b
59 changed files with 336 additions and 302 deletions
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10
pngpread.c
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@@ -1,7 +1,7 @@
/* pngpread.c - read a png file in push mode
*
* libpng 1.2.2beta4 - March 8, 2002
* libpng 1.2.2beta5 - March 26, 2002
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -240,6 +240,12 @@ png_push_read_chunk(png_structp png_ptr, png_infop info_ptr)
* header chunks, and we can start reading the image (or if this
* is called after the image has been read - we have an error).
*/
if (!(png_ptr->mode & PNG_HAVE_IHDR))
png_error(png_ptr, "Missing IHDR before IDAT");
else if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE &&
!(png_ptr->mode & PNG_HAVE_PLTE))
png_error(png_ptr, "Missing PLTE before IDAT");
if (png_ptr->mode & PNG_HAVE_IDAT)
{
if (png_ptr->push_length == 0)
@@ -1491,7 +1497,7 @@ png_set_progressive_read_fn(png_structp png_ptr, png_voidp progressive_ptr,
png_ptr->row_fn = row_fn;
png_ptr->end_fn = end_fn;
png_set_read_fn(png_ptr, progressive_ptr, png_push_fill_buffer);
png_set_read_fn(png_ptr, progressive_ptr, (png_rw_ptr)png_push_fill_buffer);
}
png_voidp PNGAPI