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Imported from libpng-0.99d.tar

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Glenn Randers-Pehrson
1998-02-08 20:56:40 -06:00
parent 0f881d62b3
commit a357b99113
24 changed files with 3267 additions and 1198 deletions
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13
pngrtran.c
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@@ -1,12 +1,12 @@
/* pngrtran.c - transforms the data in a row for PNG readers
*
* libpng 0.99c
* libpng 0.99d
* 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
* February 7, 1998
* February 8, 1998
*
* This file contains functions optionally called by an application
* in order to tell libpng how to handle data when reading a PNG.
@@ -1913,24 +1913,21 @@ png_correct_palette(png_structp png_ptr, png_colorp palette,
{
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
{
int i;
png_color back;
back.red = (png_byte)png_ptr->background.red;
back.green = (png_byte)png_ptr->background.green;
back.blue = (png_byte)png_ptr->background.blue;
for (i = 0; i < num_palette; i++)
for (i = 0; i < (int)png_ptr->num_trans && i < num_palette; i++)
{
if (i >= (int)png_ptr->num_trans ||
png_ptr->trans[i] == 0)
if (png_ptr->trans[i] == 0)
{
palette[i].red = back.red;
palette[i].green = back.green;
palette[i].blue = back.blue;
}
else if (i < (int)png_ptr->num_trans ||
png_ptr->trans[i] != 0xff)
else if (png_ptr->trans[i] != 0xff)
{
png_composite(palette[i].red, png_ptr->palette[i].red,
png_ptr->trans[i], back.red);