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Imported from libpng-1.2.7beta2.tar

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Glenn Randers-Pehrson
2004-08-28 23:30:07 -05:00
parent a4981d4ded
commit 67864af957
56 changed files with 356 additions and 251 deletions
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14
pngtrans.c
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@@ -1,7 +1,7 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
*
* libpng 1.2.7beta1 - August 26, 2004
* libpng 1.2.7beta2 - August 29, 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)
@@ -118,6 +118,18 @@ png_set_filler(png_structp png_ptr, png_uint_32 filler, int filler_loc)
png_ptr->usr_channels = 2;
}
}
#if !defined(PNG_1_0_X)
/* Added to libpng-1.2.7 */
void PNGAPI
png_set_add_alpha(png_structp png_ptr, png_uint_32 filler, int filler_loc)
{
png_debug(1, "in png_set_add_alpha\n");
png_set_filler(png_ptr, filler, filler_loc);
png_ptr->transformations |= PNG_ADD_ALPHA;
}
#endif
#endif
#if defined(PNG_READ_SWAP_ALPHA_SUPPORTED) || \