mewin/libpng
1
0
Fork 0
mirror of https://git.code.sf.net/p/libpng/code.git synced 2025-07-10 18:04:09 +02:00
Code Issues Projects Releases Wiki Activity

Imported from libpng-1.4.0beta24.tar

Browse Source
This commit is contained in:
Glenn Randers-Pehrson
2008-07-25 08:51:18 -05:00
parent 72b633026b
commit 895a9c97e2
60 changed files with 262 additions and 219 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
pngrtran.c
View File

@@ -1,7 +1,7 @@
/* pngrtran.c - transforms the data in a row for PNG readers
*
* Last changed in libpng 1.4.0 [July 22, 2008]
* Last changed in libpng 1.4.0 [July 25, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -274,7 +274,7 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
}
}
png_free(png_ptr, png_ptr->dither_sort);
png_ptr->dither_sort=NULL;
png_ptr->dither_sort = NULL;
}
else
{
@@ -292,7 +292,7 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
png_dsortp t;
png_dsortpp hash;
t=NULL;
t = NULL;
/* initialize palette index arrays */
png_ptr->index_to_palette = (png_bytep)png_malloc(png_ptr,
@@ -436,8 +436,8 @@ png_set_dither(png_structp png_ptr, png_colorp palette,
png_free(png_ptr, hash);
png_free(png_ptr, png_ptr->palette_to_index);
png_free(png_ptr, png_ptr->index_to_palette);
png_ptr->palette_to_index=NULL;
png_ptr->index_to_palette=NULL;
png_ptr->palette_to_index = NULL;
png_ptr->index_to_palette = NULL;
}
num_palette = maximum_colors;
}
@@ -2198,10 +2198,9 @@ png_do_gray_to_rgb(png_row_infop row_info, png_bytep row)
/* reduce RGB files to grayscale, with or without alpha
* using the equation given in Poynton's ColorFAQ at
* <http://www.inforamp.net/~poynton/> (THIS LINK IS DEAD June 2008)
* Copyright (c) 1998-01-04 Charles Poynton poynton at inforamp.net
* New links:
* New link:
* <http://www.poynton.com/notes/colour_and_gamma/>
* Copyright (c) 2006-11-28 Charles Poynton poynton at poynton.com
* Charles Poynton poynton at poynton.com
*
* Y = 0.212671 * R + 0.715160 * G + 0.072169 * B
*