Imported from libpng-1.0.0.tar

CHANGES

@@ -271,8 +271,3 @@ version 1.00 [March 7, 1998]
 version 1.0.0 [March 8, 1998]
    Changed name from 1.00 to 1.0.0 (Adam Costello)
    Added smakefile.ppc (with SCOPTIONS.ppc) for Amiga PPC (Andreas Kleinert)
-version 1.0.1 [March 9, 1998]
-   Fixed three bugs in pngrtran.c to make gamma+background handling consistent
-   (Greg Roelofs)
-   Changed format of the PNG_LIBPNG_VER integer to xyyyzzzz instead of xyz
-   for major, minor, and bugfix releases.  This is 10000001L. (Adam Costello)

INSTALL

@@ -1,5 +1,5 @@
 
-Installing libpng version 1.0.1 March 9, 1998
+Installing libpng version 1.0.0 March 8, 1998
 
 Before installing libpng, you must first install zlib.  zlib
 can usually be found wherever you got libpng.  zlib can be
@@ -10,7 +10,7 @@ zlib.h and zconf.h include files that correspond to the
 version of zlib that's installed.
 
 You can rename the directories that you downloaded (they
-might be called "libpng-1.0.1 or "lpng100" and "zlib-1.1.1"
+might be called "libpng-1.0.0 or "lpng100" and "zlib-1.1.1"
 or "zlib111") so that you have directories called "zlib" and "libpng".
 
 Your directory structure should look like this:

README

@@ -1,4 +1,4 @@
-README for libpng 1.0.1 (shared library 2.1)
+README for libpng 1.0.0 (shared library 2.1)
 See the note about version numbers near the top of png.h
 
 See INSTALL for instructions on how to install libpng.

libpng.3

@@ -1,4 +1,4 @@
-.TH LIBPNG 3 "March 9, 1998"
+.TH LIBPNG 3 "March 8, 1998"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library
 .SH SYNOPSIS
@@ -396,7 +396,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.0.1 March 9, 1998
+ libpng version 1.0.0 March 8, 1998
  Updated and distributed by Glenn Randers-Pehrson
  <randeg@alumni.rpi.edu>
  Copyright (c) 1998, Glenn Randers-Pehrson
@@ -2301,13 +2301,13 @@ the first widely used release:
                         [should have been 2.0.95]
  0.96  ("1.0 beta 6")      0.96      0.96
                         [should have been 2.0.96]
- 0.97b ("1.00.97 beta 7")  1.00.97   1.0.1
+ 0.97b ("1.00.97 beta 7")  1.00.97   1.0.0
                          [should have been 2.0.97]
  0.97c                     0.97      2.0.97
  0.98                      0.98      2.0.98
  0.99                      0.99      2.0.99
  0.99a-m                   0.99      2.0.99
- 1.0.1                     1.00      2.1.0
+ 1.0.0                     1.00      2.1.0
 
 Henceforth the source version will match the shared-library minor
 and patch numbers; the shared-library major version number will be
@@ -2365,7 +2365,7 @@ possible without all of you.
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
   
-Libpng version 1.0.1 (March 9, 1998):
+Libpng version 1.0.0 (March 8, 1998):
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (randeg@alumni.rpi.edu).
 

libpng.txt

@@ -1,6 +1,6 @@
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.0.1 March 9, 1998
+ libpng version 1.0.0 March 8, 1998
  Updated and distributed by Glenn Randers-Pehrson
  <randeg@alumni.rpi.edu>
  Copyright (c) 1998, Glenn Randers-Pehrson

libpngpf.3

@@ -1,4 +1,4 @@
-.TH LIBPNGPF 3 "March 9, 1998"
+.TH LIBPNGPF 3 "March 8, 1998"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library
 (private functions)

png.5

@@ -1,4 +1,4 @@
-.TH PNG 5 "March 9, 1998"
+.TH PNG 5 "March 8, 1998"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION

png.c

@@ -1,12 +1,12 @@
 
 /* png.c - location for general purpose libpng functions
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  */
 
 #define PNG_INTERNAL
@@ -16,7 +16,7 @@
 /* Version information for C files.  This had better match the version
  * string defined in png.h.
  */
-char png_libpng_ver[6] = "1.0.1";
+char png_libpng_ver[6] = "1.0.0";
 
 /* Place to hold the signature string for a PNG file. */
 png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10};

png.h

@@ -1,12 +1,12 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * For conditions of distribution and use, see the COPYRIGHT NOTICE below.
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
  * Copyright (c) 1998 Glenn Randers-Pehrson
- * March 9, 1998
+ * March 8, 1998
  *
  * Note about libpng version numbers:
  *
@@ -23,12 +23,12 @@
  *      0.90  ("1.0 beta 4")      0.90      0.90  [should have been 2.0.90]
  *      0.95  ("1.0 beta 5")      0.95      0.95  [should have been 2.0.95]
  *      0.96  ("1.0 beta 6")      0.96      0.96  [should have been 2.0.96]
- *      0.97b ("1.00.97 beta 7")  1.00.97   1.0.1 [should have been 2.0.97]
+ *      0.97b ("1.00.97 beta 7")  1.00.97   1.0.0 [should have been 2.0.97]
  *      0.97c                     0.97      2.0.97
  *      0.98                      0.98      2.0.98
  *      0.99                      0.99      2.0.99
  *      0.99a-m                   0.99      2.0.99
- *      1.0.1                     1.00      2.1.0
+ *      1.0.0                     1.00      2.1.0
  *
  *    Henceforth the source version will match the shared-library minor
  *    and patch numbers; the shared-library major version number will be
@@ -112,13 +112,12 @@ extern "C" {
  */
 
 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.0.1"
+#define PNG_LIBPNG_VER_STRING "1.0.0"
 
 /* careful here.  At one time, I wanted to use 082, but that would be octal.
- * We must not include leading blanks.
- * Versions 0.7 through 1.0.0 were in the range 0 to 100 here.  From
- * version 1.0.1 it's   xxxyyyzzzzL, where x=major, y=minor, z-bugfix*/
-#define PNG_LIBPNG_VER    10000001L
+ * Version 1.0.0 will be 100 here, etc.
+ */
+#define PNG_LIBPNG_VER  100
 
 /* variables declared in png.c - only it needs to define PNG_NO_EXTERN */
 #if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN)
@@ -1484,11 +1483,11 @@ extern PNG_EXPORT(void,png_set_tRNS) PNGARG((png_structp png_ptr,
 #define PNG_GAMMA              0x2000
 #define PNG_GRAY_TO_RGB        0x4000
 #define PNG_FILLER             0x8000
-#define PNG_PACKSWAP          0x1.0.1L
+#define PNG_PACKSWAP          0x10000L
 #define PNG_SWAP_ALPHA        0x20000L
 #define PNG_STRIP_ALPHA       0x40000L
 #define PNG_INVERT_ALPHA      0x80000L
-#define PNG_USER_TRANSFORM   0x1.0.10L
+#define PNG_USER_TRANSFORM   0x100000L
 
 /* flags for png_create_struct */
 #define PNG_STRUCT_PNG   0x0001
@@ -1517,7 +1516,7 @@ extern PNG_EXPORT(void,png_set_tRNS) PNGARG((png_structp png_ptr,
 #define PNG_FLAG_FREE_TRANS               0x2000
 #define PNG_FLAG_FREE_HIST                0x4000
 #define PNG_FLAG_HAVE_CHUNK_HEADER        0x8000L
-#define PNG_FLAG_WROTE_tIME              0x1.0.1L
+#define PNG_FLAG_WROTE_tIME              0x10000L
 
 #define PNG_FLAG_CRC_ANCILLARY_MASK (PNG_FLAG_CRC_ANCILLARY_USE | \
                                      PNG_FLAG_CRC_ANCILLARY_NOWARN)

pngconf.h

@@ -1,12 +1,12 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  */
 
 /* Any machine specific code is near the front of this file, so if you

pngerror.c

@@ -1,12 +1,12 @@
 
 /* pngerror.c - stub functions for i/o and memory allocation
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  *
  * This file provides a location for all error handling.  Users which
  * need special error handling are expected to write replacement functions

pngget.c

@@ -1,12 +1,12 @@
 
 /* pngget.c - retrieval of values from info struct
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  */
 
 #define PNG_INTERNAL
@@ -259,14 +259,14 @@ float
 png_get_x_offset_inches(png_structp png_ptr, png_infop info_ptr)
 {
    return ((float)png_get_x_offset_microns(png_ptr, info_ptr)
-     *.03937/1.0.100. +.5)
+     *.03937/1000000. +.5)
 }
 
 float
 png_get_y_offset_inches(png_structp png_ptr, png_infop info_ptr)
 {
    return ((float)png_get_y_offset_microns(png_ptr, info_ptr)
-     *.03937/1.0.100. +.5)
+     *.03937/1000000. +.5)
 }
 
 #if defined(PNG_READ_pHYs_SUPPORTED)

pngmem.c

@@ -1,12 +1,12 @@
 
 /* pngmem.c - stub functions for memory allocation
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  *
  * This file provides a location for all memory allocation.  Users which
  * need special memory handling are expected to modify the code in this file

pngpread.c

@@ -1,12 +1,12 @@
 
 /* pngpread.c - read a png file in push mode
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  */
 
 #define PNG_INTERNAL

pngread.c

@@ -1,12 +1,12 @@
 
 /* pngread.c - read a PNG file
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  *
  * This file contains routines that an application calls directly to
  * read a PNG file or stream.

pngrio.c

@@ -1,12 +1,12 @@
 
 /* pngrio.c - functions for data input
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  *
  * This file provides a location for all input.  Users which need
  * special handling are expected to write a function which has the same

pngrtran.c

@@ -1,12 +1,12 @@
 
 /* pngrtran.c - transforms the data in a row for PNG readers
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  *
  * This file contains functions optionally called by an application 
  * in order to tell libpng how to handle data when reading a PNG.
@@ -665,8 +665,7 @@ png_init_read_transformations(png_structp png_ptr)
         if (png_ptr->transformations & PNG_INVERT_ALPHA)
         {
 #if defined(PNG_READ_EXPAND_SUPPORTED)
-           /* GRR BUG #1:  was (png_ptr->transformations & !PNG_EXPAND) */
-           if (!(png_ptr->transformations & PNG_EXPAND))
+           if (png_ptr->transformations & !PNG_EXPAND)
 #endif
            {
            /* invert the alpha channel (in tRNS) unless the pixels are 
@@ -713,44 +712,12 @@ png_init_read_transformations(png_structp png_ptr)
             }
             else
             {
-               double g, gs;
+               double g;
 
-/*
-               GRR BUG #3:  inconsistent with handling of full RGBA below
-               g = 1.0 / png_ptr->background_gamma;
-               gs = 1.0 / (png_ptr->background_gamma * png_ptr->screen_gamma);
- */
-               switch (png_ptr->background_gamma_type)
-               {
-                  case PNG_BACKGROUND_GAMMA_SCREEN:
-                     g = (png_ptr->screen_gamma);
-                     gs = 1.0;
-                     break;
-                  case PNG_BACKGROUND_GAMMA_FILE:
-                     g = 1.0 / (png_ptr->gamma);
-                     gs = 1.0 / (png_ptr->gamma * png_ptr->screen_gamma);
-                     break;
-                  case PNG_BACKGROUND_GAMMA_UNIQUE:
-                     g = 1.0 / (png_ptr->background_gamma);
-                     gs = 1.0 / (png_ptr->background_gamma *
-                                 png_ptr->screen_gamma);
-                     break;
-                  default:
-                     g = 1.0;    /* back_1 */
-                     gs = 1.0;   /* back */
-               }
+               g = 1.0 / (png_ptr->background_gamma * png_ptr->screen_gamma);
 
-               if (
-/*
-                   GRR BUG #2:  This creates self-inconsistent images--fully
-                     transparent and fully opaque look fine, but translucent
-                     pixels are wrong (too bright if XV's code can be trusted).
-                     Commenting it out makes an internally self-consistent
-                     image, but still not consistent with RGBA version of same
-                     thing (again, too bright in XV).
-                   png_ptr->background_gamma_type==PNG_BACKGROUND_GAMMA_SCREEN||
- */
-                   fabs(gs - 1.0) < PNG_GAMMA_THRESHOLD)
+               if (png_ptr->background_gamma_type==PNG_BACKGROUND_GAMMA_SCREEN||
+                   fabs(g - 1.0) < PNG_GAMMA_THRESHOLD)
                {
                   back.red = (png_byte)png_ptr->background.red;
                   back.green = (png_byte)png_ptr->background.green;
@@ -758,20 +725,28 @@ png_init_read_transformations(png_structp png_ptr)
                }
                else
                {
-                  back.red = (png_byte)(pow(
-                     (double)png_ptr->background.red/255, gs) * 255.0 + .5);
-                  back.green = (png_byte)(pow(
-                     (double)png_ptr->background.green/255, gs) * 255.0 + .5);
-                  back.blue = (png_byte)(pow(
-                     (double)png_ptr->background.blue/255, gs) * 255.0 + .5);
+                  back.red =
+                     (png_byte)(pow((double)png_ptr->background.red/255, g) *
+                      255.0 + 0.5);
+                  back.green =
+                     (png_byte)(pow((double)png_ptr->background.green/255, g) *
+                      255.0 + 0.5);
+                  back.blue =
+                     (png_byte)(pow((double)png_ptr->background.blue/255, g) *
+                      255.0 + 0.5);
                }
 
-               back_1.red = (png_byte)(pow(
-                  (double)png_ptr->background.red/255, g) * 255.0 + .5);
-               back_1.green = (png_byte)(pow(
-                  (double)png_ptr->background.green/255, g) * 255.0 + .5);
-               back_1.blue = (png_byte)(pow(
-                  (double)png_ptr->background.blue/255, g) * 255.0 + .5);
+               g = 1.0 / png_ptr->background_gamma;
+
+               back_1.red =
+                  (png_byte)(pow((double)png_ptr->background.red/255, g) *
+                   255.0 + 0.5);
+               back_1.green =
+                  (png_byte)(pow((double)png_ptr->background.green/255, g) *
+                   255.0 + 0.5);
+               back_1.blue =
+                  (png_byte)(pow((double)png_ptr->background.blue/255, g) *
+                   255.0 + 0.5);
             }
 
             for (i = 0; i < num_palette; i++)

pngrutil.c

@@ -1,12 +1,12 @@
 
 /* pngrutil.c - utilities to read a PNG file
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  *
  * This file contains routines which are only called from within
  * libpng itself during the course of reading an image.
@@ -436,7 +436,7 @@ png_handle_gAMA(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
       }
 #endif /* PNG_READ_sRGB_SUPPORTED */
 
-   file_gamma = (float)igamma / (float)1.0.10.0;
+   file_gamma = (float)igamma / (float)100000.0;
 #ifdef PNG_READ_GAMMA_SUPPORTED
    png_ptr->gamma = file_gamma;
 #endif
@@ -549,11 +549,11 @@ png_handle_cHRM(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
 
    png_crc_read(png_ptr, buf, 4);
    val = png_get_uint_32(buf);
-   white_x = (float)val / (float)1.0.10.0;
+   white_x = (float)val / (float)100000.0;
 
    png_crc_read(png_ptr, buf, 4);
    val = png_get_uint_32(buf);
-   white_y = (float)val / (float)1.0.10.0;
+   white_y = (float)val / (float)100000.0;
 
    if (white_x < 0 || white_x > 0.8 || white_y < 0 || white_y > 0.8 ||
        white_x + white_y > 1.0)
@@ -565,11 +565,11 @@ png_handle_cHRM(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
 
    png_crc_read(png_ptr, buf, 4);
    val = png_get_uint_32(buf);
-   red_x = (float)val / (float)1.0.10.0;
+   red_x = (float)val / (float)100000.0;
 
    png_crc_read(png_ptr, buf, 4);
    val = png_get_uint_32(buf);
-   red_y = (float)val / (float)1.0.10.0;
+   red_y = (float)val / (float)100000.0;
 
    if (red_x < 0 || red_x > 0.8 || red_y < 0 || red_y > 0.8 ||
        red_x + red_y > 1.0)
@@ -581,11 +581,11 @@ png_handle_cHRM(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
 
    png_crc_read(png_ptr, buf, 4);
    val = png_get_uint_32(buf);
-   green_x = (float)val / (float)1.0.10.0;
+   green_x = (float)val / (float)100000.0;
 
    png_crc_read(png_ptr, buf, 4);
    val = png_get_uint_32(buf);
-   green_y = (float)val / (float)1.0.10.0;
+   green_y = (float)val / (float)100000.0;
 
    if (green_x < 0 || green_x > 0.8 || green_y < 0 || green_y > 0.8 ||
        green_x + green_y > 1.0)
@@ -597,11 +597,11 @@ png_handle_cHRM(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
 
    png_crc_read(png_ptr, buf, 4);
    val = png_get_uint_32(buf);
-   blue_x = (float)val / (float)1.0.10.0;
+   blue_x = (float)val / (float)100000.0;
 
    png_crc_read(png_ptr, buf, 4);
    val = png_get_uint_32(buf);
-   blue_y = (float)val / (float)1.0.10.0;
+   blue_y = (float)val / (float)100000.0;
 
    if (blue_x < (float)0 || blue_x > (float)0.8 || blue_y < (float)0 ||
        blue_y > (float)0.8 || blue_x + blue_y > (float)1.0)
@@ -694,7 +694,7 @@ png_handle_sRGB(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
 
 #if defined(PNG_READ_gAMA_SUPPORTED) && defined(PNG_READ_GAMMA_SUPPORTED)
    if ((info_ptr->valid & PNG_INFO_gAMA))
-      if((png_uint_32)(png_ptr->gamma*(float)1.0.10.+.5) != (png_uint_32)45000L)
+      if((png_uint_32)(png_ptr->gamma*(float)100000.+.5) != (png_uint_32)45000L)
       {
          png_warning(png_ptr,
            "Ignoring incorrect gAMA value when sRGB is also present");

pngset.c

@@ -1,12 +1,12 @@
 
 /* pngset.c - storage of image information into info struct
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  *
  * The functions here are used during reads to store data from the file
  * into the info struct, and during writes to store application data

pngtest.c

@@ -1,12 +1,12 @@
 
 /* pngtest.c - a simple test program to test libpng
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  *
  * This program reads in a PNG image, writes it out again, and then
  * compares the two files.  If the files are identical, this shows that

pngtrans.c

@@ -1,12 +1,12 @@
 
 /* pngtrans.c - transforms the data in a row (used by both readers and writers)
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  */
 
 #define PNG_INTERNAL

pngwio.c

@@ -1,12 +1,12 @@
 
 /* pngwio.c - functions for data output
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  *
  * This file provides a location for all output.  Users which need
  * special handling are expected to write functions which have the same

pngwrite.c

@@ -1,12 +1,12 @@
    
 /* pngwrite.c - general routines to write a PNG file
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  */
 
 /* get internal access to png.h */

pngwtran.c

@@ -1,12 +1,12 @@
 
 /* pngwtran.c - transforms the data in a row for PNG writers
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  */
 
 #define PNG_INTERNAL

pngwutil.c

@@ -1,12 +1,12 @@
 
 /* pngwutil.c - utilities to write a PNG file
  *
- * libpng 1.0.1
+ * libpng 1.0.0
  * 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
- * March 9, 1998
+ * March 8, 1998
  */
 
 #define PNG_INTERNAL
@@ -340,8 +340,8 @@ png_write_gAMA(png_structp png_ptr, double file_gamma)
    png_byte buf[4];
 
    png_debug(1, "in png_write_gAMA\n");
-   /* file_gamma is saved in 1/1.0.100ths */
-   igamma = (png_uint_32)(file_gamma * 1.0.10.0 + 0.5);
+   /* file_gamma is saved in 1/100,000ths */
+   igamma = (png_uint_32)(file_gamma * 100000.0 + 0.5);
    png_save_uint_32(buf, igamma);
    png_write_chunk(png_ptr, png_gAMA, buf, (png_size_t)4);
 }
@@ -426,16 +426,16 @@ png_write_cHRM(png_structp png_ptr, double white_x, double white_y,
    png_byte buf[32];
 
    png_debug(1, "in png_write_cHRM\n");
-   /* each value is saved int 1/1.0.100ths */
+   /* each value is saved int 1/100,000ths */
    if (white_x < 0 || white_x > 0.8 || white_y < 0 || white_y > 0.8 ||
        white_x + white_y > 1.0)
    {
       png_warning(png_ptr, "Invalid cHRM white point specified");
       return;
    }
-   itemp = (png_uint_32)(white_x * 1.0.10.0 + 0.5);
+   itemp = (png_uint_32)(white_x * 100000.0 + 0.5);
    png_save_uint_32(buf, itemp);
-   itemp = (png_uint_32)(white_y * 1.0.10.0 + 0.5);
+   itemp = (png_uint_32)(white_y * 100000.0 + 0.5);
    png_save_uint_32(buf + 4, itemp);
 
    if (red_x < 0 || red_x > 0.8 || red_y < 0 || red_y > 0.8 ||
@@ -444,9 +444,9 @@ png_write_cHRM(png_structp png_ptr, double white_x, double white_y,
       png_warning(png_ptr, "Invalid cHRM red point specified");
       return;
    }
-   itemp = (png_uint_32)(red_x * 1.0.10.0 + 0.5);
+   itemp = (png_uint_32)(red_x * 100000.0 + 0.5);
    png_save_uint_32(buf + 8, itemp);
-   itemp = (png_uint_32)(red_y * 1.0.10.0 + 0.5);
+   itemp = (png_uint_32)(red_y * 100000.0 + 0.5);
    png_save_uint_32(buf + 12, itemp);
 
    if (green_x < 0 || green_x > 0.8 || green_y < 0 || green_y > 0.8 ||
@@ -455,9 +455,9 @@ png_write_cHRM(png_structp png_ptr, double white_x, double white_y,
       png_warning(png_ptr, "Invalid cHRM green point specified");
       return;
    }
-   itemp = (png_uint_32)(green_x * 1.0.10.0 + 0.5);
+   itemp = (png_uint_32)(green_x * 100000.0 + 0.5);
    png_save_uint_32(buf + 16, itemp);
-   itemp = (png_uint_32)(green_y * 1.0.10.0 + 0.5);
+   itemp = (png_uint_32)(green_y * 100000.0 + 0.5);
    png_save_uint_32(buf + 20, itemp);
 
    if (blue_x < 0 || blue_x > 0.8 || blue_y < 0 || blue_y > 0.8 ||
@@ -466,9 +466,9 @@ png_write_cHRM(png_structp png_ptr, double white_x, double white_y,
       png_warning(png_ptr, "Invalid cHRM blue point specified");
       return;
    }
-   itemp = (png_uint_32)(blue_x * 1.0.10.0 + 0.5);
+   itemp = (png_uint_32)(blue_x * 100000.0 + 0.5);
    png_save_uint_32(buf + 24, itemp);
-   itemp = (png_uint_32)(blue_y * 1.0.10.0 + 0.5);
+   itemp = (png_uint_32)(blue_y * 100000.0 + 0.5);
    png_save_uint_32(buf + 28, itemp);
 
    png_write_chunk(png_ptr, png_cHRM, buf, (png_size_t)32);