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Imported from libpng-1.0.4-pre1.tar

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This commit is contained in:
Glenn Randers-Pehrson
1999-09-17 12:27:26 -05:00
parent 87544ac62b
commit 4393a9ad6b
56 changed files with 5798 additions and 1904 deletions
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17
pngset.c
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@@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct
*
* libpng 1.0.3 - January 14, 1999
* libpng 1.0.4 - September 17, 1999
* 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
@@ -107,7 +107,7 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr,
/* check for overflow */
rowbytes_per_pixel = (info_ptr->pixel_depth + 7) >> 3;
if (( width > (png_uint_32)2147483647L/rowbytes_per_pixel))
if (( width > PNG_MAX_UINT/rowbytes_per_pixel))
{
png_warning(png_ptr,
"Width too large to process image data; rowbytes will overflow.");
@@ -344,7 +344,8 @@ void
png_set_tIME(png_structp png_ptr, png_infop info_ptr, png_timep mod_time)
{
png_debug1(1, "in %s storage function\n", "tIME");
if (png_ptr == NULL || info_ptr == NULL)
if (png_ptr == NULL || info_ptr == NULL ||
(png_ptr->flags & PNG_FLAG_WROTE_tIME))
return;
png_memcpy(&(info_ptr->mod_time), mod_time, sizeof (png_time));
@@ -378,3 +379,13 @@ png_set_tRNS(png_structp png_ptr, png_infop info_ptr,
}
#endif
#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED)
void
png_permit_empty_plte (png_structp png_ptr, int empty_plte_permitted)
{
png_debug1(1, "in png_permit_empty_plte\n", "");
if (png_ptr == NULL)
return;
png_ptr->empty_plte_permitted=(png_byte)empty_plte_permitted;
}
#endif