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[libpng14] Removed a redundant test from png_set_IHDR().

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Glenn Randers-Pehrson
2013-06-04 15:01:38 -05:00
parent 07f9f0b469
commit 648f543b0c
3 changed files with 7 additions and 14 deletions
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13
pngset.c
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@@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct
*
* Last changed in libpng 1.4.13 [January 22, 2013]
* Last changed in libpng 1.4.13 [June 4, 2013]
* Copyright (c) 1998-2013 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -250,16 +250,7 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr,
info_ptr->channels++;
info_ptr->pixel_depth = (png_byte)(info_ptr->channels * info_ptr->bit_depth);
/* Check for potential overflow */
if (width > (PNG_UINT_32_MAX
>> 3) /* 8-byte RGBA pixels */
- 64 /* bigrowbuf hack */
- 1 /* filter byte */
- 7*8 /* rounding of width to multiple of 8 pixels */
- 8) /* extra max_pixel_depth pad */
info_ptr->rowbytes = 0;
else
info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, width);
info_ptr->rowbytes = PNG_ROWBYTES(info_ptr->pixel_depth, width);
}
#ifdef PNG_oFFs_SUPPORTED