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-rw-r--r--libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/README153
-rw-r--r--libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/makefile.std65
-rw-r--r--libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/makefile.tc338
-rw-r--r--libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/makevms.com92
-rw-r--r--libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/png2pnm.bat41
-rw-r--r--libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/png2pnm.c430
-rwxr-xr-xlibraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/png2pnm.sh42
-rw-r--r--libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pngminus.bat4
-rwxr-xr-xlibraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pngminus.sh5
-rw-r--r--libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pnm2png.bat41
-rw-r--r--libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pnm2png.c533
-rwxr-xr-xlibraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pnm2png.sh42
12 files changed, 1486 insertions, 0 deletions
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/README b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/README
new file mode 100644
index 0000000..b0516ec
--- /dev/null
+++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/README
@@ -0,0 +1,153 @@
1PngMinus
2--------
3(copyright Willem van Schaik, 1999)
4
5
6License
7-------
8
9Permission to use, copy, modify, and distribute this software and
10its documentation for any purpose and without fee is hereby granted,
11provided that the above copyright notice appear in all copies and
12that both that copyright notice and this permission notice appear in
13supporting documentation. This software is provided "as is" without
14express or implied warranty.
15
16
17Some history
18------------
19Soon after the creation of PNG in 1995, the need was felt for a set of
20pnmtopng / pngtopnm utilities. Independantly Alexander Lehmann and I
21(Willem van Schaik) started such a project. Luckily we discovered this
22and merged the two together into pnmtopng.tar.gz, which is available
23from a/o ftp://ftp.simplesystems.org/pub/libpng/png/.
24
25These two utilities have many, many options and make use of most of the
26features of PNG, like gamma, alpha, sbit, text-chunks, etc. This makes
27the utilities quite complex and by now not anymore very maintainable.
28When we wrote these programs, libpng was still in an early stage.
29Therefore, lots of the functionality that we put in our software can now
30be done using transform-functions in libpng.
31
32Finally, to compile these programs, you need to have installed and
33compiled three libraries: libpng, zlib and netpbm. Especially the latter
34makes the whole setup a bit bulky. But that's unavoidable given the many
35features of pnmtopng.
36
37
38What now
39--------
40At this moment libpng is in a very stable state and can do much of the
41work done in pnmtopng. Also, pnmtopng needs to be upgraded to the new
42interface of libpng. Hence, it is time for a rewrite from the ground up
43of pnmtopng and pngtopnm. This will happen in the near future (stay
44tuned). The new package will get a different name to distinguish it from
45the old one: PngPlus.
46
47To experiment a bit with the new interface of libpng, I started off with
48a small prototype that contains only the basic functionality. It doesn't
49have any of the options to read or write special chunks and it will do
50no gamma correction. But this makes it also a simple program that is
51quite easy to understand and can serve well as a template for other
52software developments. (By now there are of course a couple of programs,
53like Greg Roelofs' rpng/wpng, that can be used just as good.)
54
55
56Can and can not
57---------------
58As this is the small brother of the future PngPlus, I called this fellow
59PngMinus. Because I started this development in good-old Turbo-C, I
60avoided the use the netpbm library, which requires DOS extenders. Again,
61another reason to call it PngMinus (minus netpbm :-). So, part of the
62program are some elementary routines to read / write pgm- and ppm-files.
63It does not read b&w pbm-files.
64
65The downside of this approach is that you can not use them on images
66that require blocks of memory bigger than 64k (the DOS version). For
67larger images you will get an out-of-memory error.
68
69As said before, PngMinus doesn't correct for gamma. When reading
70png-files you can do this just as well by piping the output of png2pnm
71to pnmgamma, one of the standard PbmPlus tools. This same scenario will
72most probably also be followed in the full-blown future PngPlus, with
73the addition of course of the possibility to create gamma-chunks when
74writing png-files.
75
76On the other hand it supports alpha-channels. When reading a png-image
77you can write the alpha-channel into a pgm-file. And when creating an
78RGB+A png-image, you just combine a ppm-file with a corresponding
79pgm-file containing the alpha-channel. When reading, transparency chunks
80are converted into an alpha-channel and from there on treated the same
81way.
82
83Finally you can opt for writing ascii or binary pgm- and ppm-files. When
84the bit-depth is 16, the format will always be ascii.
85
86
87Using it
88--------
89To distinguish them from pnmtopng and PngPlus, the utilities are named
90png2pnm and pnm2png (2 instead of to). The input- and output-files can
91be given as parameters or through redirection. Therefore the programs
92can be part of a pipe.
93
94To list the options type "png2pnm -h" or "pnm2png -h".
95
96
97Just like Scandinavian furniture
98--------------------------------
99You have to put it together yourself. I did test the software under
100MS-DOS with Turbo-C 3.0 and under RedHat Linux 4.2 with gcc. In both
101cases I used libpng-1.0.4 and zlib-1.1.3. Later versions should be OK,
102however some older libpng versions have a bug in pngmem.c when using
103Turbo-C 3.0 (see below).
104
105You can build it using one of the two makefiles (make -f makefile.###)
106or use the batch/script files pngminus.bat / pngminus.sh. This assumes
107that you have built the libraries in ../libpng and ../zlib. Using Linux,
108make sure that you have built libpng with makefile.std and not
109makefile.linux (also called .lnx in earlier versions of libpng). The
110latter creates a .so shared-library, while the PngMinus makefile assumes
111a normal .a static library.
112
113If you create a ../pngsuite directory and then store the basn####.png
114files from PngSuite (http://www.schaik.com/pngsuite/) in there, you can
115test in one go the proper functioning of PngMinus, see png2pnm.bat and
116pnm2png.bat (or the .sh versions).
117
118
119Warranty
120-------
121Please, remember that this was just a small experiment to learn a few
122things. It will have many unforeseen features <vbg>. Who said bugs? Use
123it when you are in need for something simple or when you want to start
124developing your own stuff.
125
126
127The Turbo bug
128-------------
129** pngmem.old
130 hptr = (png_byte huge *)((long)(hptr) & 0xfffffff0L);
131 hptr += 16L;
132** pngmem.c
133 hptr = (png_byte huge *)((long)(hptr) & 0xfffffff0L);
134 hptr = hptr + 16L;
135**
136
137** pngmem.old
138 png_ptr->offset_table_ptr[i] = (png_bytep)hptr;
139 hptr += (png_uint_32)65536L;
140** pngmem.c
141 png_ptr->offset_table_ptr[i] = (png_bytep)hptr;
142 hptr = hptr + 65536L;
143**
144
145
146The end
147-------
148Willem van Schaik
149mailto:willem@schaik.com
150http://www.schaik.com/png/
151-------
152Oct 1999
153
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/makefile.std b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/makefile.std
new file mode 100644
index 0000000..a121032
--- /dev/null
+++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/makefile.std
@@ -0,0 +1,65 @@
1# Makefile for PngMinus (png2pnm and pnm2png)
2# Linux / Unix
3
4#CC=cc
5CC=gcc
6LD=$(CC)
7
8RM=rm -f
9
10#PNGPATH = /usr/local
11#PNGINC = -I$(PNGPATH)/include/libpng15
12#PNGLIB = -L$(PNGPATH)/lib -lpng15
13#PNGLIBS = $(PNGPATH)/lib/libpng15.a
14PNGINC = -I../..
15PNGLIB = -L../.. -lpng
16PNGLIBS = ../../libpng.a
17
18#ZPATH = /usr/local
19#ZINC = -I$(ZPATH)/include
20#ZLIB = -L$(ZPATH)/lib -lz
21#ZLIBS = $(ZPATH)/lib/libz.a
22ZINC = -I../../../zlib
23ZLIB = -L../../../zlib -lz
24ZLIBS = ../../../zlib/libz.a
25
26CFLAGS=$(PNGINC) $(ZINC)
27LDLIBS=$(PNGLIB) $(ZLIB)
28LDLIBSS=$(PNGLIBS) $(ZLIBS)
29C=.c
30O=.o
31L=.a
32E=
33
34# dependencies
35
36#all: png2pnm$(E) pnm2png$(E)
37all: png2pnm$(E) pnm2png$(E) png2pnm-static$(E) pnm2png-static$(E)
38
39png2pnm$(O): png2pnm$(C)
40 $(CC) -c $(CFLAGS) png2pnm$(C)
41
42png2pnm$(E): png2pnm$(O)
43 $(LD) $(LDFLAGS) -o png2pnm$(E) png2pnm$(O) $(LDLIBS) -lm
44
45png2pnm-static$(E): png2pnm$(O)
46 $(LD) $(LDFLAGS) -o png2pnm-static$(E) png2pnm$(O) $(LDLIBSS) -lm
47
48pnm2png$(O): pnm2png$(C)
49 $(CC) -c $(CFLAGS) pnm2png$(C)
50
51pnm2png$(E): pnm2png$(O)
52 $(LD) $(LDFLAGS) -o pnm2png$(E) pnm2png$(O) $(LDLIBS) -lm
53
54pnm2png-static$(E): pnm2png$(O)
55 $(LD) $(LDFLAGS) -o pnm2png-static$(E) pnm2png$(O) $(LDLIBSS) -lm
56
57clean:
58 $(RM) png2pnm$(O)
59 $(RM) pnm2png$(O)
60 $(RM) png2pnm$(E)
61 $(RM) pnm2png$(E)
62 $(RM) png2pnm-static$(E)
63 $(RM) pnm2png-static$(E)
64
65# End of makefile for png2pnm / pnm2png
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/makefile.tc3 b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/makefile.tc3
new file mode 100644
index 0000000..01062cc
--- /dev/null
+++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/makefile.tc3
@@ -0,0 +1,38 @@
1# Makefile for PngMinus (png2pnm and pnm2png)
2# TurboC++ 3.0
3
4CC=tcc -Ic:\tc3\inc
5LD=tcc -Lc:\tc3\lib
6LB=tlib
7RM=del
8CP=copy
9MODEL=l
10CCFLAGS=-O -m$(MODEL) -I..\libpng -I..\zlib
11LDFLAGS=-m$(MODEL) -L..\libpng -L..\zlib
12C=.c
13O=.obj
14L=.lib
15E=.exe
16
17# dependencies
18
19all: png2pnm$(E) pnm2png$(E)
20
21png2pnm$(O): png2pnm$(C)
22 $(CC) -c $(CCFLAGS) png2pnm$(C)
23
24png2pnm$(E): png2pnm$(O)
25 $(LD) $(LDFLAGS) png2pnm$(O) libpng$(L) zlib$(L)
26
27pnm2png$(O): pnm2png$(C)
28 $(CC) -c $(CCFLAGS) pnm2png$(C)
29
30pnm2png$(E): pnm2png$(O)
31 $(LD) $(LDFLAGS) pnm2png$(O) libpng$(L) zlib$(L)
32
33clean:
34 $(RM) *$(O)
35 $(RM) *$(E)
36
37# End of makefile for png2pnm / pnm2png
38
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/makevms.com b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/makevms.com
new file mode 100644
index 0000000..96c3147
--- /dev/null
+++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/makevms.com
@@ -0,0 +1,92 @@
1$!------------------------------------------------------------------------------
2$! make Contrib programs of libpng under OpenVMS
3$!
4$!
5$! Look for the compiler used
6$!
7$ zlibsrc = "[---.zlib]"
8$ ccopt="/include=(''zlibsrc',[--])"
9$ if f$getsyi("HW_MODEL").ge.1024
10$ then
11$ ccopt = "/prefix=all"+ccopt
12$ comp = "__decc__=1"
13$ if f$trnlnm("SYS").eqs."" then define sys sys$library:
14$ else
15$ if f$search("SYS$SYSTEM:DECC$COMPILER.EXE").eqs.""
16$ then
17$ if f$trnlnm("SYS").eqs."" then define sys sys$library:
18$ if f$search("SYS$SYSTEM:VAXC.EXE").eqs.""
19$ then
20$ comp = "__gcc__=1"
21$ CC :== GCC
22$ else
23$ comp = "__vaxc__=1"
24$ endif
25$ else
26$ if f$trnlnm("SYS").eqs."" then define sys decc$library_include:
27$ ccopt = "/decc/prefix=all"+ccopt
28$ comp = "__decc__=1"
29$ endif
30$ endif
31$ open/write lopt lib.opt
32$ write lopt "[--]libpng.olb/lib"
33$ write lopt "''zlibsrc'libz.olb/lib"
34$ close lopt
35$ open/write xopt x11.opt
36$ write xopt "sys$library:decw$xlibshr.exe/share"
37$ close xopt
38$ write sys$output "Compiling PNG contrib programs ..."
39$ write sys$output "Building pnm2png..."
40$ CALL MAKE pnm2png.OBJ "cc ''CCOPT' pnm2png" -
41 pnm2png.c
42$ call make pnm2png.exe -
43 "LINK pnm2png,lib.opt/opt" -
44 pnm2png.obj
45$ write sys$output "Building png2pnm..."
46$ CALL MAKE png2pnm.OBJ "cc ''CCOPT' png2pnm" -
47 png2pnm.c
48$ call make png2pnm.exe -
49 "LINK png2pnm,lib.opt/opt" -
50 png2pnm.obj
51$ exit
52$!
53$!
54$MAKE: SUBROUTINE !SUBROUTINE TO CHECK DEPENDENCIES
55$ V = 'F$Verify(0)
56$! P1 = What we are trying to make
57$! P2 = Command to make it
58$! P3 - P8 What it depends on
59$
60$ If F$Search(P1) .Eqs. "" Then Goto Makeit
61$ Time = F$CvTime(F$File(P1,"RDT"))
62$arg=3
63$Loop:
64$ Argument = P'arg
65$ If Argument .Eqs. "" Then Goto Exit
66$ El=0
67$Loop2:
68$ File = F$Element(El," ",Argument)
69$ If File .Eqs. " " Then Goto Endl
70$ AFile = ""
71$Loop3:
72$ OFile = AFile
73$ AFile = F$Search(File)
74$ If AFile .Eqs. "" .Or. AFile .Eqs. OFile Then Goto NextEl
75$ If F$CvTime(F$File(AFile,"RDT")) .Ges. Time Then Goto Makeit
76$ Goto Loop3
77$NextEL:
78$ El = El + 1
79$ Goto Loop2
80$EndL:
81$ arg=arg+1
82$ If arg .Le. 8 Then Goto Loop
83$ Goto Exit
84$
85$Makeit:
86$ VV=F$VERIFY(0)
87$ write sys$output P2
88$ 'P2
89$ VV='F$Verify(VV)
90$Exit:
91$ If V Then Set Verify
92$ENDSUBROUTINE
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/png2pnm.bat b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/png2pnm.bat
new file mode 100644
index 0000000..85abe3c
--- /dev/null
+++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/png2pnm.bat
@@ -0,0 +1,41 @@
1REM -- grayscale
2png2pnm.exe -noraw ..\pngsuite\basn0g01.png basn0g01.pgm
3png2pnm.exe -noraw ..\pngsuite\basn0g02.png basn0g02.pgm
4png2pnm.exe -noraw ..\pngsuite\basn0g04.png basn0g04.pgm
5png2pnm.exe -noraw ..\pngsuite\basn0g08.png basn0g08.pgm
6png2pnm.exe -noraw ..\pngsuite\basn0g16.png basn0g16.pgm
7REM -- full-color
8png2pnm.exe -noraw ..\pngsuite\basn2c08.png basn2c08.ppm
9png2pnm.exe -noraw ..\pngsuite\basn2c16.png basn2c16.ppm
10REM -- palletted
11png2pnm.exe -noraw ..\pngsuite\basn3p01.png basn3p01.ppm
12png2pnm.exe -noraw ..\pngsuite\basn3p02.png basn3p02.ppm
13png2pnm.exe -noraw ..\pngsuite\basn3p04.png basn3p04.ppm
14png2pnm.exe -noraw ..\pngsuite\basn3p08.png basn3p08.ppm
15REM -- gray with alpha-channel
16png2pnm.exe -noraw ..\pngsuite\basn4a08.png basn4a08.pgm
17png2pnm.exe -noraw ..\pngsuite\basn4a16.png basn4a16.pgm
18REM -- color with alpha-channel
19png2pnm.exe -noraw -alpha basn6a08.pgm ..\pngsuite\basn6a08.png basn6a08.ppm
20png2pnm.exe -noraw -alpha basn6a16.pgm ..\pngsuite\basn6a16.png basn6a16.ppm
21REM -- grayscale
22png2pnm.exe -raw ..\pngsuite\basn0g01.png rawn0g01.pgm
23png2pnm.exe -raw ..\pngsuite\basn0g02.png rawn0g02.pgm
24png2pnm.exe -raw ..\pngsuite\basn0g04.png rawn0g04.pgm
25png2pnm.exe -raw ..\pngsuite\basn0g08.png rawn0g08.pgm
26png2pnm.exe -raw ..\pngsuite\basn0g16.png rawn0g16.pgm
27REM -- full-color
28png2pnm.exe -raw ..\pngsuite\basn2c08.png rawn2c08.ppm
29png2pnm.exe -raw ..\pngsuite\basn2c16.png rawn2c16.ppm
30REM -- palletted
31png2pnm.exe -raw ..\pngsuite\basn3p01.png rawn3p01.ppm
32png2pnm.exe -raw ..\pngsuite\basn3p02.png rawn3p02.ppm
33png2pnm.exe -raw ..\pngsuite\basn3p04.png rawn3p04.ppm
34png2pnm.exe -raw ..\pngsuite\basn3p08.png rawn3p08.ppm
35REM -- gray with alpha-channel
36png2pnm.exe -raw ..\pngsuite\basn4a08.png rawn4a08.pgm
37png2pnm.exe -raw ..\pngsuite\basn4a16.png rawn4a16.pgm
38REM -- color with alpha-channel
39png2pnm.exe -noraw -alpha rawn6a08.pgm ..\pngsuite\basn6a08.png rawn6a08.ppm
40png2pnm.exe -noraw -alpha rawn6a16.pgm ..\pngsuite\basn6a16.png rawn6a16.ppm
41
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/png2pnm.c b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/png2pnm.c
new file mode 100644
index 0000000..ef28d90
--- /dev/null
+++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/png2pnm.c
@@ -0,0 +1,430 @@
1/*
2 * png2pnm.c --- conversion from PNG-file to PGM/PPM-file
3 * copyright (C) 1999 by Willem van Schaik <willem@schaik.com>
4 *
5 * version 1.0 - 1999.10.15 - First version.
6 *
7 * Permission to use, copy, modify, and distribute this software and
8 * its documentation for any purpose and without fee is hereby granted,
9 * provided that the above copyright notice appear in all copies and
10 * that both that copyright notice and this permission notice appear in
11 * supporting documentation. This software is provided "as is" without
12 * express or implied warranty.
13 */
14
15#include <stdio.h>
16#include <stdlib.h>
17#ifdef __TURBOC__
18#include <mem.h>
19#include <fcntl.h>
20#endif
21
22#ifndef BOOL
23#define BOOL unsigned char
24#endif
25#ifndef TRUE
26#define TRUE (BOOL) 1
27#endif
28#ifndef FALSE
29#define FALSE (BOOL) 0
30#endif
31
32#ifdef __TURBOC__
33#define STDIN 0
34#define STDOUT 1
35#define STDERR 2
36#endif
37
38/* to make png2pnm verbose so we can find problems (needs to be before png.h) */
39#ifndef PNG_DEBUG
40#define PNG_DEBUG 0
41#endif
42
43#include "png.h"
44
45/* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */
46#ifndef png_jmpbuf
47# define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
48#endif
49
50/* function prototypes */
51
52int main (int argc, char *argv[]);
53void usage ();
54BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL alpha);
55
56/*
57 * main
58 */
59
60int main(int argc, char *argv[])
61{
62 FILE *fp_rd = stdin;
63 FILE *fp_wr = stdout;
64 FILE *fp_al = NULL;
65 BOOL raw = TRUE;
66 BOOL alpha = FALSE;
67 int argi;
68
69 for (argi = 1; argi < argc; argi++)
70 {
71 if (argv[argi][0] == '-')
72 {
73 switch (argv[argi][1])
74 {
75 case 'n':
76 raw = FALSE;
77 break;
78 case 'r':
79 raw = TRUE;
80 break;
81 case 'a':
82 alpha = TRUE;
83 argi++;
84 if ((fp_al = fopen (argv[argi], "wb")) == NULL)
85 {
86 fprintf (stderr, "PNM2PNG\n");
87 fprintf (stderr, "Error: can not create alpha-channel file %s\n", argv[argi]);
88 exit (1);
89 }
90 break;
91 case 'h':
92 case '?':
93 usage();
94 exit(0);
95 break;
96 default:
97 fprintf (stderr, "PNG2PNM\n");
98 fprintf (stderr, "Error: unknown option %s\n", argv[argi]);
99 usage();
100 exit(1);
101 break;
102 } /* end switch */
103 }
104 else if (fp_rd == stdin)
105 {
106 if ((fp_rd = fopen (argv[argi], "rb")) == NULL)
107 {
108 fprintf (stderr, "PNG2PNM\n");
109 fprintf (stderr, "Error: file %s does not exist\n", argv[argi]);
110 exit (1);
111 }
112 }
113 else if (fp_wr == stdout)
114 {
115 if ((fp_wr = fopen (argv[argi], "wb")) == NULL)
116 {
117 fprintf (stderr, "PNG2PNM\n");
118 fprintf (stderr, "Error: can not create file %s\n", argv[argi]);
119 exit (1);
120 }
121 }
122 else
123 {
124 fprintf (stderr, "PNG2PNM\n");
125 fprintf (stderr, "Error: too many parameters\n");
126 usage();
127 exit(1);
128 }
129 } /* end for */
130
131#ifdef __TURBOC__
132 /* set stdin/stdout if required to binary */
133 if (fp_rd == stdin)
134 {
135 setmode (STDIN, O_BINARY);
136 }
137 if ((raw) && (fp_wr == stdout))
138 {
139 setmode (STDOUT, O_BINARY);
140 }
141#endif
142
143 /* call the conversion program itself */
144 if (png2pnm (fp_rd, fp_wr, fp_al, raw, alpha) == FALSE)
145 {
146 fprintf (stderr, "PNG2PNM\n");
147 fprintf (stderr, "Error: unsuccessful conversion of PNG-image\n");
148 exit(1);
149 }
150
151 /* close input file */
152 fclose (fp_rd);
153 /* close output file */
154 fclose (fp_wr);
155 /* close alpha file */
156 if (alpha)
157 fclose (fp_al);
158
159 return 0;
160}
161
162/*
163 * usage
164 */
165
166void usage()
167{
168 fprintf (stderr, "PNG2PNM\n");
169 fprintf (stderr, " by Willem van Schaik, 1999\n");
170#ifdef __TURBOC__
171 fprintf (stderr, " for Turbo-C and Borland-C compilers\n");
172#else
173 fprintf (stderr, " for Linux (and Unix) compilers\n");
174#endif
175 fprintf (stderr, "Usage: png2pnm [options] <file>.png [<file>.pnm]\n");
176 fprintf (stderr, " or: ... | png2pnm [options]\n");
177 fprintf (stderr, "Options:\n");
178 fprintf (stderr, " -r[aw] write pnm-file in binary format (P4/P5/P6) (default)\n");
179 fprintf (stderr, " -n[oraw] write pnm-file in ascii format (P1/P2/P3)\n");
180 fprintf (stderr, " -a[lpha] <file>.pgm write PNG alpha channel as pgm-file\n");
181 fprintf (stderr, " -h | -? print this help-information\n");
182}
183
184/*
185 * png2pnm
186 */
187
188BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL alpha)
189{
190 png_struct *png_ptr = NULL;
191 png_info *info_ptr = NULL;
192 png_byte buf[8];
193 png_byte *png_pixels = NULL;
194 png_byte **row_pointers = NULL;
195 png_byte *pix_ptr = NULL;
196 png_uint_32 row_bytes;
197
198 png_uint_32 width;
199 png_uint_32 height;
200 int bit_depth;
201 int channels;
202 int color_type;
203 int alpha_present;
204 int row, col;
205 int ret;
206 int i;
207 long dep_16;
208
209 /* read and check signature in PNG file */
210 ret = fread (buf, 1, 8, png_file);
211 if (ret != 8)
212 return FALSE;
213
214 ret = png_sig_cmp (buf, 0, 8);
215 if (ret)
216 return FALSE;
217
218 /* create png and info structures */
219
220 png_ptr = png_create_read_struct (PNG_LIBPNG_VER_STRING,
221 NULL, NULL, NULL);
222 if (!png_ptr)
223 return FALSE; /* out of memory */
224
225 info_ptr = png_create_info_struct (png_ptr);
226 if (!info_ptr)
227 {
228 png_destroy_read_struct (&png_ptr, NULL, NULL);
229 return FALSE; /* out of memory */
230 }
231
232 if (setjmp (png_jmpbuf(png_ptr)))
233 {
234 png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
235 return FALSE;
236 }
237
238 /* set up the input control for C streams */
239 png_init_io (png_ptr, png_file);
240 png_set_sig_bytes (png_ptr, 8); /* we already read the 8 signature bytes */
241
242 /* read the file information */
243 png_read_info (png_ptr, info_ptr);
244
245 /* get size and bit-depth of the PNG-image */
246 png_get_IHDR (png_ptr, info_ptr,
247 &width, &height, &bit_depth, &color_type,
248 NULL, NULL, NULL);
249
250 /* set-up the transformations */
251
252 /* transform paletted images into full-color rgb */
253 if (color_type == PNG_COLOR_TYPE_PALETTE)
254 png_set_expand (png_ptr);
255 /* expand images to bit-depth 8 (only applicable for grayscale images) */
256 if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
257 png_set_expand (png_ptr);
258 /* transform transparency maps into full alpha-channel */
259 if (png_get_valid (png_ptr, info_ptr, PNG_INFO_tRNS))
260 png_set_expand (png_ptr);
261
262#ifdef NJET
263 /* downgrade 16-bit images to 8 bit */
264 if (bit_depth == 16)
265 png_set_strip_16 (png_ptr);
266 /* transform grayscale images into full-color */
267 if (color_type == PNG_COLOR_TYPE_GRAY ||
268 color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
269 png_set_gray_to_rgb (png_ptr);
270 /* only if file has a file gamma, we do a correction */
271 if (png_get_gAMA (png_ptr, info_ptr, &file_gamma))
272 png_set_gamma (png_ptr, (double) 2.2, file_gamma);
273#endif
274
275 /* all transformations have been registered; now update info_ptr data,
276 * get rowbytes and channels, and allocate image memory */
277
278 png_read_update_info (png_ptr, info_ptr);
279
280 /* get the new color-type and bit-depth (after expansion/stripping) */
281 png_get_IHDR (png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
282 NULL, NULL, NULL);
283
284 /* check for 16-bit files */
285 if (bit_depth == 16)
286 {
287 raw = FALSE;
288#ifdef __TURBOC__
289 pnm_file->flags &= ~((unsigned) _F_BIN);
290#endif
291 }
292
293 /* calculate new number of channels and store alpha-presence */
294 if (color_type == PNG_COLOR_TYPE_GRAY)
295 channels = 1;
296 else if (color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
297 channels = 2;
298 else if (color_type == PNG_COLOR_TYPE_RGB)
299 channels = 3;
300 else if (color_type == PNG_COLOR_TYPE_RGB_ALPHA)
301 channels = 4;
302 else
303 channels = 0; /* should never happen */
304 alpha_present = (channels - 1) % 2;
305
306 /* check if alpha is expected to be present in file */
307 if (alpha && !alpha_present)
308 {
309 fprintf (stderr, "PNG2PNM\n");
310 fprintf (stderr, "Error: PNG-file doesn't contain alpha channel\n");
311 exit (1);
312 }
313
314 /* row_bytes is the width x number of channels x (bit-depth / 8) */
315 row_bytes = png_get_rowbytes (png_ptr, info_ptr);
316
317 if ((png_pixels = (png_byte *) malloc (row_bytes * height * sizeof (png_byte))) == NULL) {
318 png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
319 return FALSE;
320 }
321
322 if ((row_pointers = (png_byte **) malloc (height * sizeof (png_bytep))) == NULL)
323 {
324 png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
325 free (png_pixels);
326 png_pixels = NULL;
327 return FALSE;
328 }
329
330 /* set the individual row_pointers to point at the correct offsets */
331 for (i = 0; i < (height); i++)
332 row_pointers[i] = png_pixels + i * row_bytes;
333
334 /* now we can go ahead and just read the whole image */
335 png_read_image (png_ptr, row_pointers);
336
337 /* read rest of file, and get additional chunks in info_ptr - REQUIRED */
338 png_read_end (png_ptr, info_ptr);
339
340 /* clean up after the read, and free any memory allocated - REQUIRED */
341 png_destroy_read_struct (&png_ptr, &info_ptr, (png_infopp) NULL);
342
343 /* write header of PNM file */
344
345 if ((color_type == PNG_COLOR_TYPE_GRAY) ||
346 (color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
347 {
348 fprintf (pnm_file, "%s\n", (raw) ? "P5" : "P2");
349 fprintf (pnm_file, "%d %d\n", (int) width, (int) height);
350 fprintf (pnm_file, "%ld\n", ((1L << (int) bit_depth) - 1L));
351 }
352 else if ((color_type == PNG_COLOR_TYPE_RGB) ||
353 (color_type == PNG_COLOR_TYPE_RGB_ALPHA))
354 {
355 fprintf (pnm_file, "%s\n", (raw) ? "P6" : "P3");
356 fprintf (pnm_file, "%d %d\n", (int) width, (int) height);
357 fprintf (pnm_file, "%ld\n", ((1L << (int) bit_depth) - 1L));
358 }
359
360 /* write header of PGM file with alpha channel */
361
362 if ((alpha) &&
363 ((color_type == PNG_COLOR_TYPE_GRAY_ALPHA) ||
364 (color_type == PNG_COLOR_TYPE_RGB_ALPHA)))
365 {
366 fprintf (alpha_file, "%s\n", (raw) ? "P5" : "P2");
367 fprintf (alpha_file, "%d %d\n", (int) width, (int) height);
368 fprintf (alpha_file, "%ld\n", ((1L << (int) bit_depth) - 1L));
369 }
370
371 /* write data to PNM file */
372 pix_ptr = png_pixels;
373
374 for (row = 0; row < height; row++)
375 {
376 for (col = 0; col < width; col++)
377 {
378 for (i = 0; i < (channels - alpha_present); i++)
379 {
380 if (raw)
381 fputc ((int) *pix_ptr++ , pnm_file);
382 else
383 if (bit_depth == 16){
384 dep_16 = (long) *pix_ptr++;
385 fprintf (pnm_file, "%ld ", (dep_16 << 8) + ((long) *pix_ptr++));
386 }
387 else
388 fprintf (pnm_file, "%ld ", (long) *pix_ptr++);
389 }
390 if (alpha_present)
391 {
392 if (!alpha)
393 {
394 pix_ptr++; /* alpha */
395 if (bit_depth == 16)
396 pix_ptr++;
397 }
398 else /* output alpha-channel as pgm file */
399 {
400 if (raw)
401 fputc ((int) *pix_ptr++ , alpha_file);
402 else
403 if (bit_depth == 16){
404 dep_16 = (long) *pix_ptr++;
405 fprintf (alpha_file, "%ld ", (dep_16 << 8) + (long) *pix_ptr++);
406 }
407 else
408 fprintf (alpha_file, "%ld ", (long) *pix_ptr++);
409 }
410 } /* if alpha_present */
411
412 if (!raw)
413 if (col % 4 == 3)
414 fprintf (pnm_file, "\n");
415 } /* end for col */
416
417 if (!raw)
418 if (col % 4 != 0)
419 fprintf (pnm_file, "\n");
420 } /* end for row */
421
422 if (row_pointers != (unsigned char**) NULL)
423 free (row_pointers);
424 if (png_pixels != (unsigned char*) NULL)
425 free (png_pixels);
426
427 return TRUE;
428
429} /* end of source */
430
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/png2pnm.sh b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/png2pnm.sh
new file mode 100755
index 0000000..ee39664
--- /dev/null
+++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/png2pnm.sh
@@ -0,0 +1,42 @@
1#!/bin/sh
2# -- grayscale
3./png2pnm -noraw ../pngsuite/basn0g01.png basn0g01.pgm
4./png2pnm -noraw ../pngsuite/basn0g02.png basn0g02.pgm
5./png2pnm -noraw ../pngsuite/basn0g04.png basn0g04.pgm
6./png2pnm -noraw ../pngsuite/basn0g08.png basn0g08.pgm
7./png2pnm -noraw ../pngsuite/basn0g16.png basn0g16.pgm
8# -- full-color
9./png2pnm -noraw ../pngsuite/basn2c08.png basn2c08.ppm
10./png2pnm -noraw ../pngsuite/basn2c16.png basn2c16.ppm
11# -- palletted
12./png2pnm -noraw ../pngsuite/basn3p01.png basn3p01.ppm
13./png2pnm -noraw ../pngsuite/basn3p02.png basn3p02.ppm
14./png2pnm -noraw ../pngsuite/basn3p04.png basn3p04.ppm
15./png2pnm -noraw ../pngsuite/basn3p08.png basn3p08.ppm
16# -- gray with alpha-channel
17./png2pnm -noraw ../pngsuite/basn4a08.png basn4a08.pgm
18./png2pnm -noraw ../pngsuite/basn4a16.png basn4a16.pgm
19# -- color with alpha-channel
20./png2pnm -noraw -alpha basn6a08.pgm ../pngsuite/basn6a08.png basn6a08.ppm
21./png2pnm -noraw -alpha basn6a16.pgm ../pngsuite/basn6a16.png basn6a16.ppm
22# -- grayscale
23./png2pnm -raw ../pngsuite/basn0g01.png rawn0g01.pgm
24./png2pnm -raw ../pngsuite/basn0g02.png rawn0g02.pgm
25./png2pnm -raw ../pngsuite/basn0g04.png rawn0g04.pgm
26./png2pnm -raw ../pngsuite/basn0g08.png rawn0g08.pgm
27./png2pnm -raw ../pngsuite/basn0g16.png rawn0g16.pgm
28# -- full-color
29./png2pnm -raw ../pngsuite/basn2c08.png rawn2c08.ppm
30./png2pnm -raw ../pngsuite/basn2c16.png rawn2c16.ppm
31# -- palletted
32./png2pnm -raw ../pngsuite/basn3p01.png rawn3p01.ppm
33./png2pnm -raw ../pngsuite/basn3p02.png rawn3p02.ppm
34./png2pnm -raw ../pngsuite/basn3p04.png rawn3p04.ppm
35./png2pnm -raw ../pngsuite/basn3p08.png rawn3p08.ppm
36# -- gray with alpha-channel
37./png2pnm -raw ../pngsuite/basn4a08.png rawn4a08.pgm
38./png2pnm -raw ../pngsuite/basn4a16.png rawn4a16.pgm
39# -- color with alpha-channel
40./png2pnm -noraw -alpha rawn6a08.pgm ../pngsuite/basn6a08.png rawn6a08.ppm
41./png2pnm -noraw -alpha rawn6a16.pgm ../pngsuite/basn6a16.png rawn6a16.ppm
42
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pngminus.bat b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pngminus.bat
new file mode 100644
index 0000000..5f8d2d4
--- /dev/null
+++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pngminus.bat
@@ -0,0 +1,4 @@
1make -f makefile.tc3
2call png2pnm.bat
3call pnm2png.bat
4
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pngminus.sh b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pngminus.sh
new file mode 100755
index 0000000..adcef55
--- /dev/null
+++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pngminus.sh
@@ -0,0 +1,5 @@
1#!/bin/sh
2make -f makefile.std
3sh png2pnm.sh
4sh pnm2png.sh
5
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pnm2png.bat b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pnm2png.bat
new file mode 100644
index 0000000..5b9977a
--- /dev/null
+++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pnm2png.bat
@@ -0,0 +1,41 @@
1REM -- grayscale
2pnm2png.exe basn0g01.pgm basn0g01.png
3pnm2png.exe basn0g02.pgm basn0g02.png
4pnm2png.exe basn0g04.pgm basn0g04.png
5pnm2png.exe basn0g08.pgm basn0g08.png
6pnm2png.exe basn0g16.pgm basn0g16.png
7REM -- full-color
8pnm2png.exe basn2c08.ppm basn2c08.png
9pnm2png.exe basn2c16.ppm basn2c16.png
10REM -- palletted
11pnm2png.exe basn3p01.ppm basn3p01.png
12pnm2png.exe basn3p02.ppm basn3p02.png
13pnm2png.exe basn3p04.ppm basn3p04.png
14pnm2png.exe basn3p08.ppm basn3p08.png
15REM -- gray with alpha-channel
16pnm2png.exe -alpha basn6a08.pgm basn4a08.pgm basn4a08.png
17pnm2png.exe -alpha basn6a16.pgm basn4a16.pgm basn4a16.png
18REM -- color with alpha-channel
19pnm2png.exe -alpha basn6a08.pgm basn6a08.ppm basn6a08.png
20pnm2png.exe -alpha basn6a16.pgm basn6a16.ppm basn6a16.png
21REM -- grayscale
22pnm2png.exe rawn0g01.pgm rawn0g01.png
23pnm2png.exe rawn0g02.pgm rawn0g02.png
24pnm2png.exe rawn0g04.pgm rawn0g04.png
25pnm2png.exe rawn0g08.pgm rawn0g08.png
26pnm2png.exe rawn0g16.pgm rawn0g16.png
27REM -- full-color
28pnm2png.exe rawn2c08.ppm rawn2c08.png
29pnm2png.exe rawn2c16.ppm rawn2c16.png
30REM -- palletted
31pnm2png.exe rawn3p01.ppm rawn3p01.png
32pnm2png.exe rawn3p02.ppm rawn3p02.png
33pnm2png.exe rawn3p04.ppm rawn3p04.png
34pnm2png.exe rawn3p08.ppm rawn3p08.png
35REM -- gray with alpha-channel
36pnm2png.exe -alpha rawn6a08.pgm rawn4a08.pgm rawn4a08.png
37pnm2png.exe -alpha rawn6a16.pgm rawn4a16.pgm rawn4a16.png
38REM -- color with alpha-channel
39pnm2png.exe -alpha rawn6a08.pgm rawn6a08.ppm rawn6a08.png
40pnm2png.exe -alpha rawn6a16.pgm rawn6a16.ppm rawn6a16.png
41
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pnm2png.c b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pnm2png.c
new file mode 100644
index 0000000..2f321cc
--- /dev/null
+++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pnm2png.c
@@ -0,0 +1,533 @@
1/*
2 * pnm2png.c --- conversion from PBM/PGM/PPM-file to PNG-file
3 * copyright (C) 1999 by Willem van Schaik <willem@schaik.com>
4 *
5 * version 1.0 - 1999.10.15 - First version.
6 *
7 * Permission to use, copy, modify, and distribute this software and
8 * its documentation for any purpose and without fee is hereby granted,
9 * provided that the above copyright notice appear in all copies and
10 * that both that copyright notice and this permission notice appear in
11 * supporting documentation. This software is provided "as is" without
12 * express or implied warranty.
13 */
14
15#include <stdio.h>
16#include <stdlib.h>
17#ifdef __TURBOC__
18#include <mem.h>
19#include <fcntl.h>
20#endif
21
22#ifndef BOOL
23#define BOOL unsigned char
24#endif
25#ifndef TRUE
26#define TRUE (BOOL) 1
27#endif
28#ifndef FALSE
29#define FALSE (BOOL) 0
30#endif
31
32#define STDIN 0
33#define STDOUT 1
34#define STDERR 2
35
36/* to make pnm2png verbose so we can find problems (needs to be before png.h) */
37#ifndef PNG_DEBUG
38#define PNG_DEBUG 0
39#endif
40
41#include "png.h"
42
43/* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */
44#ifndef png_jmpbuf
45# define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
46#endif
47
48/* function prototypes */
49
50int main (int argc, char *argv[]);
51void usage ();
52BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file, BOOL interlace, BOOL alpha);
53void get_token(FILE *pnm_file, char *token);
54png_uint_32 get_data (FILE *pnm_file, int depth);
55png_uint_32 get_value (FILE *pnm_file, int depth);
56
57/*
58 * main
59 */
60
61int main(int argc, char *argv[])
62{
63 FILE *fp_rd = stdin;
64 FILE *fp_al = NULL;
65 FILE *fp_wr = stdout;
66 BOOL interlace = FALSE;
67 BOOL alpha = FALSE;
68 int argi;
69
70 for (argi = 1; argi < argc; argi++)
71 {
72 if (argv[argi][0] == '-')
73 {
74 switch (argv[argi][1])
75 {
76 case 'i':
77 interlace = TRUE;
78 break;
79 case 'a':
80 alpha = TRUE;
81 argi++;
82 if ((fp_al = fopen (argv[argi], "rb")) == NULL)
83 {
84 fprintf (stderr, "PNM2PNG\n");
85 fprintf (stderr, "Error: alpha-channel file %s does not exist\n",
86 argv[argi]);
87 exit (1);
88 }
89 break;
90 case 'h':
91 case '?':
92 usage();
93 exit(0);
94 break;
95 default:
96 fprintf (stderr, "PNM2PNG\n");
97 fprintf (stderr, "Error: unknown option %s\n", argv[argi]);
98 usage();
99 exit(1);
100 break;
101 } /* end switch */
102 }
103 else if (fp_rd == stdin)
104 {
105 if ((fp_rd = fopen (argv[argi], "rb")) == NULL)
106 {
107 fprintf (stderr, "PNM2PNG\n");
108 fprintf (stderr, "Error: file %s does not exist\n", argv[argi]);
109 exit (1);
110 }
111 }
112 else if (fp_wr == stdout)
113 {
114 if ((fp_wr = fopen (argv[argi], "wb")) == NULL)
115 {
116 fprintf (stderr, "PNM2PNG\n");
117 fprintf (stderr, "Error: can not create PNG-file %s\n", argv[argi]);
118 exit (1);
119 }
120 }
121 else
122 {
123 fprintf (stderr, "PNM2PNG\n");
124 fprintf (stderr, "Error: too many parameters\n");
125 usage();
126 exit (1);
127 }
128 } /* end for */
129
130#ifdef __TURBOC__
131 /* set stdin/stdout to binary, we're reading the PNM always! in binary format */
132 if (fp_rd == stdin)
133 {
134 setmode (STDIN, O_BINARY);
135 }
136 if (fp_wr == stdout)
137 {
138 setmode (STDOUT, O_BINARY);
139 }
140#endif
141
142 /* call the conversion program itself */
143 if (pnm2png (fp_rd, fp_wr, fp_al, interlace, alpha) == FALSE)
144 {
145 fprintf (stderr, "PNM2PNG\n");
146 fprintf (stderr, "Error: unsuccessful converting to PNG-image\n");
147 exit (1);
148 }
149
150 /* close input file */
151 fclose (fp_rd);
152 /* close output file */
153 fclose (fp_wr);
154 /* close alpha file */
155 if (alpha)
156 fclose (fp_al);
157
158 return 0;
159}
160
161/*
162 * usage
163 */
164
165void usage()
166{
167 fprintf (stderr, "PNM2PNG\n");
168 fprintf (stderr, " by Willem van Schaik, 1999\n");
169#ifdef __TURBOC__
170 fprintf (stderr, " for Turbo-C and Borland-C compilers\n");
171#else
172 fprintf (stderr, " for Linux (and Unix) compilers\n");
173#endif
174 fprintf (stderr, "Usage: pnm2png [options] <file>.<pnm> [<file>.png]\n");
175 fprintf (stderr, " or: ... | pnm2png [options]\n");
176 fprintf (stderr, "Options:\n");
177 fprintf (stderr, " -i[nterlace] write png-file with interlacing on\n");
178 fprintf (stderr, " -a[lpha] <file>.pgm read PNG alpha channel as pgm-file\n");
179 fprintf (stderr, " -h | -? print this help-information\n");
180}
181
182/*
183 * pnm2png
184 */
185
186BOOL pnm2png (FILE *pnm_file, FILE *png_file, FILE *alpha_file, BOOL interlace, BOOL alpha)
187{
188 png_struct *png_ptr = NULL;
189 png_info *info_ptr = NULL;
190 png_byte *png_pixels = NULL;
191 png_byte **row_pointers = NULL;
192 png_byte *pix_ptr = NULL;
193 png_uint_32 row_bytes;
194
195 char type_token[16];
196 char width_token[16];
197 char height_token[16];
198 char maxval_token[16];
199 int color_type;
200 png_uint_32 width, alpha_width;
201 png_uint_32 height, alpha_height;
202 png_uint_32 maxval;
203 int bit_depth = 0;
204 int channels;
205 int alpha_depth = 0;
206 int alpha_present;
207 int row, col;
208 BOOL raw, alpha_raw = FALSE;
209 png_uint_32 tmp16;
210 int i;
211
212 /* read header of PNM file */
213
214 get_token(pnm_file, type_token);
215 if (type_token[0] != 'P')
216 {
217 return FALSE;
218 }
219 else if ((type_token[1] == '1') || (type_token[1] == '4'))
220 {
221 raw = (type_token[1] == '4');
222 color_type = PNG_COLOR_TYPE_GRAY;
223 bit_depth = 1;
224 }
225 else if ((type_token[1] == '2') || (type_token[1] == '5'))
226 {
227 raw = (type_token[1] == '5');
228 color_type = PNG_COLOR_TYPE_GRAY;
229 get_token(pnm_file, width_token);
230 sscanf (width_token, "%lu", &width);
231 get_token(pnm_file, height_token);
232 sscanf (height_token, "%lu", &height);
233 get_token(pnm_file, maxval_token);
234 sscanf (maxval_token, "%lu", &maxval);
235 if (maxval <= 1)
236 bit_depth = 1;
237 else if (maxval <= 3)
238 bit_depth = 2;
239 else if (maxval <= 15)
240 bit_depth = 4;
241 else if (maxval <= 255)
242 bit_depth = 8;
243 else /* if (maxval <= 65535) */
244 bit_depth = 16;
245 }
246 else if ((type_token[1] == '3') || (type_token[1] == '6'))
247 {
248 raw = (type_token[1] == '6');
249 color_type = PNG_COLOR_TYPE_RGB;
250 get_token(pnm_file, width_token);
251 sscanf (width_token, "%lu", &width);
252 get_token(pnm_file, height_token);
253 sscanf (height_token, "%lu", &height);
254 get_token(pnm_file, maxval_token);
255 sscanf (maxval_token, "%lu", &maxval);
256 if (maxval <= 1)
257 bit_depth = 1;
258 else if (maxval <= 3)
259 bit_depth = 2;
260 else if (maxval <= 15)
261 bit_depth = 4;
262 else if (maxval <= 255)
263 bit_depth = 8;
264 else /* if (maxval <= 65535) */
265 bit_depth = 16;
266 }
267 else
268 {
269 return FALSE;
270 }
271
272 /* read header of PGM file with alpha channel */
273
274 if (alpha)
275 {
276 if (color_type == PNG_COLOR_TYPE_GRAY)
277 color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
278 if (color_type == PNG_COLOR_TYPE_RGB)
279 color_type = PNG_COLOR_TYPE_RGB_ALPHA;
280
281 get_token(alpha_file, type_token);
282 if (type_token[0] != 'P')
283 {
284 return FALSE;
285 }
286 else if ((type_token[1] == '2') || (type_token[1] == '5'))
287 {
288 alpha_raw = (type_token[1] == '5');
289 get_token(alpha_file, width_token);
290 sscanf (width_token, "%lu", &alpha_width);
291 if (alpha_width != width)
292 return FALSE;
293 get_token(alpha_file, height_token);
294 sscanf (height_token, "%lu", &alpha_height);
295 if (alpha_height != height)
296 return FALSE;
297 get_token(alpha_file, maxval_token);
298 sscanf (maxval_token, "%lu", &maxval);
299 if (maxval <= 1)
300 alpha_depth = 1;
301 else if (maxval <= 3)
302 alpha_depth = 2;
303 else if (maxval <= 15)
304 alpha_depth = 4;
305 else if (maxval <= 255)
306 alpha_depth = 8;
307 else /* if (maxval <= 65535) */
308 alpha_depth = 16;
309 if (alpha_depth != bit_depth)
310 return FALSE;
311 }
312 else
313 {
314 return FALSE;
315 }
316 } /* end if alpha */
317
318 /* calculate the number of channels and store alpha-presence */
319 if (color_type == PNG_COLOR_TYPE_GRAY)
320 channels = 1;
321 else if (color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
322 channels = 2;
323 else if (color_type == PNG_COLOR_TYPE_RGB)
324 channels = 3;
325 else if (color_type == PNG_COLOR_TYPE_RGB_ALPHA)
326 channels = 4;
327 else
328 channels = 0; /* should not happen */
329
330 alpha_present = (channels - 1) % 2;
331
332 /* row_bytes is the width x number of channels x (bit-depth / 8) */
333 row_bytes = width * channels * ((bit_depth <= 8) ? 1 : 2);
334
335 if ((png_pixels = (png_byte *) malloc (row_bytes * height * sizeof (png_byte))) == NULL)
336 return FALSE;
337
338 /* read data from PNM file */
339 pix_ptr = png_pixels;
340
341 for (row = 0; row < height; row++)
342 {
343 for (col = 0; col < width; col++)
344 {
345 for (i = 0; i < (channels - alpha_present); i++)
346 {
347 if (raw)
348 *pix_ptr++ = get_data (pnm_file, bit_depth);
349 else
350 if (bit_depth <= 8)
351 *pix_ptr++ = get_value (pnm_file, bit_depth);
352 else
353 {
354 tmp16 = get_value (pnm_file, bit_depth);
355 *pix_ptr = (png_byte) ((tmp16 >> 8) & 0xFF);
356 pix_ptr++;
357 *pix_ptr = (png_byte) (tmp16 & 0xFF);
358 pix_ptr++;
359 }
360 }
361
362 if (alpha) /* read alpha-channel from pgm file */
363 {
364 if (alpha_raw)
365 *pix_ptr++ = get_data (alpha_file, alpha_depth);
366 else
367 if (alpha_depth <= 8)
368 *pix_ptr++ = get_value (alpha_file, bit_depth);
369 else
370 {
371 tmp16 = get_value (alpha_file, bit_depth);
372 *pix_ptr++ = (png_byte) ((tmp16 >> 8) & 0xFF);
373 *pix_ptr++ = (png_byte) (tmp16 & 0xFF);
374 }
375 } /* if alpha */
376
377 } /* end for col */
378 } /* end for row */
379
380 /* prepare the standard PNG structures */
381 png_ptr = png_create_write_struct (PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
382 if (!png_ptr)
383 {
384 return FALSE;
385 }
386 info_ptr = png_create_info_struct (png_ptr);
387 if (!info_ptr)
388 {
389 png_destroy_write_struct (&png_ptr, (png_infopp) NULL);
390 return FALSE;
391 }
392
393 /* setjmp() must be called in every function that calls a PNG-reading libpng function */
394 if (setjmp (png_jmpbuf(png_ptr)))
395 {
396 png_destroy_write_struct (&png_ptr, (png_infopp) NULL);
397 return FALSE;
398 }
399
400 /* initialize the png structure */
401 png_init_io (png_ptr, png_file);
402
403 /* we're going to write more or less the same PNG as the input file */
404 png_set_IHDR (png_ptr, info_ptr, width, height, bit_depth, color_type,
405 (!interlace) ? PNG_INTERLACE_NONE : PNG_INTERLACE_ADAM7,
406 PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
407
408 /* write the file header information */
409 png_write_info (png_ptr, info_ptr);
410
411 /* if needed we will allocate memory for an new array of row-pointers */
412 if (row_pointers == (unsigned char**) NULL)
413 {
414 if ((row_pointers = (png_byte **) malloc (height * sizeof (png_bytep))) == NULL)
415 {
416 png_destroy_write_struct (&png_ptr, (png_infopp) NULL);
417 return FALSE;
418 }
419 }
420
421 /* set the individual row_pointers to point at the correct offsets */
422 for (i = 0; i < (height); i++)
423 row_pointers[i] = png_pixels + i * row_bytes;
424
425 /* write out the entire image data in one call */
426 png_write_image (png_ptr, row_pointers);
427
428 /* write the additional chuncks to the PNG file (not really needed) */
429 png_write_end (png_ptr, info_ptr);
430
431 /* clean up after the write, and free any memory allocated */
432 png_destroy_write_struct (&png_ptr, (png_infopp) NULL);
433
434 if (row_pointers != (unsigned char**) NULL)
435 free (row_pointers);
436 if (png_pixels != (unsigned char*) NULL)
437 free (png_pixels);
438
439 return TRUE;
440} /* end of pnm2png */
441
442/*
443 * get_token() - gets the first string after whitespace
444 */
445
446void get_token(FILE *pnm_file, char *token)
447{
448 int i = 0;
449
450 /* remove white-space */
451 do
452 {
453 token[i] = (unsigned char) fgetc (pnm_file);
454 }
455 while ((token[i] == '\n') || (token[i] == '\r') || (token[i] == ' '));
456
457 /* read string */
458 do
459 {
460 i++;
461 token[i] = (unsigned char) fgetc (pnm_file);
462 }
463 while ((token[i] != '\n') && (token[i] != '\r') && (token[i] != ' '));
464
465 token[i] = '\0';
466
467 return;
468}
469
470/*
471 * get_data() - takes first byte and converts into next pixel value,
472 * taking as much bits as defined by bit-depth and
473 * using the bit-depth to fill up a byte (0Ah -> AAh)
474 */
475
476png_uint_32 get_data (FILE *pnm_file, int depth)
477{
478 static int bits_left = 0;
479 static int old_value = 0;
480 static int mask = 0;
481 int i;
482 png_uint_32 ret_value;
483
484 if (mask == 0)
485 for (i = 0; i < depth; i++)
486 mask = (mask >> 1) | 0x80;
487
488 if (bits_left <= 0)
489 {
490 old_value = fgetc (pnm_file);
491 bits_left = 8;
492 }
493
494 ret_value = old_value & mask;
495 for (i = 1; i < (8 / depth); i++)
496 ret_value = ret_value || (ret_value >> depth);
497
498 old_value = (old_value << depth) & 0xFF;
499 bits_left -= depth;
500
501 return ret_value;
502}
503
504/*
505 * get_value() - takes first (numeric) string and converts into number,
506 * using the bit-depth to fill up a byte (0Ah -> AAh)
507 */
508
509png_uint_32 get_value (FILE *pnm_file, int depth)
510{
511 static png_uint_32 mask = 0;
512 png_byte token[16];
513 png_uint_32 ret_value;
514 int i = 0;
515
516 if (mask == 0)
517 for (i = 0; i < depth; i++)
518 mask = (mask << 1) | 0x01;
519
520 get_token (pnm_file, (char *) token);
521 sscanf ((const char *) token, "%lu", &ret_value);
522
523 ret_value &= mask;
524
525 if (depth < 8)
526 for (i = 0; i < (8 / depth); i++)
527 ret_value = (ret_value << depth) || ret_value;
528
529 return ret_value;
530}
531
532/* end of source */
533
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pnm2png.sh b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pnm2png.sh
new file mode 100755
index 0000000..975f047
--- /dev/null
+++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/contrib/pngminus/pnm2png.sh
@@ -0,0 +1,42 @@
1#!/bin/sh
2# -- grayscale
3./pnm2png basn0g01.pgm basn0g01.png
4./pnm2png basn0g02.pgm basn0g02.png
5./pnm2png basn0g04.pgm basn0g04.png
6./pnm2png basn0g08.pgm basn0g08.png
7./pnm2png basn0g16.pgm basn0g16.png
8# -- full-color
9./pnm2png basn2c08.ppm basn2c08.png
10./pnm2png basn2c16.ppm basn2c16.png
11# -- palletted
12./pnm2png basn3p01.ppm basn3p01.png
13./pnm2png basn3p02.ppm basn3p02.png
14./pnm2png basn3p04.ppm basn3p04.png
15./pnm2png basn3p08.ppm basn3p08.png
16# -- gray with alpha-channel
17./pnm2png -alpha basn6a08.pgm basn4a08.pgm basn4a08.png
18./pnm2png -alpha basn6a16.pgm basn4a16.pgm basn4a16.png
19# -- color with alpha-channel
20./pnm2png -alpha basn6a08.pgm basn6a08.ppm basn6a08.png
21./pnm2png -alpha basn6a16.pgm basn6a16.ppm basn6a16.png
22# -- grayscale
23./pnm2png rawn0g01.pgm rawn0g01.png
24./pnm2png rawn0g02.pgm rawn0g02.png
25./pnm2png rawn0g04.pgm rawn0g04.png
26./pnm2png rawn0g08.pgm rawn0g08.png
27./pnm2png rawn0g16.pgm rawn0g16.png
28# -- full-color
29./pnm2png rawn2c08.ppm rawn2c08.png
30./pnm2png rawn2c16.ppm rawn2c16.png
31# -- palletted
32./pnm2png rawn3p01.ppm rawn3p01.png
33./pnm2png rawn3p02.ppm rawn3p02.png
34./pnm2png rawn3p04.ppm rawn3p04.png
35./pnm2png rawn3p08.ppm rawn3p08.png
36# -- gray with alpha-channel
37./pnm2png -alpha rawn6a08.pgm rawn4a08.pgm rawn4a08.png
38./pnm2png -alpha rawn6a16.pgm rawn4a16.pgm rawn4a16.png
39# -- color with alpha-channel
40./pnm2png -alpha rawn6a08.pgm rawn6a08.ppm rawn6a08.png
41./pnm2png -alpha rawn6a16.pgm rawn6a16.ppm rawn6a16.png
42
generated by cgit v1.1 at 2024-08-02 14:57:48 +0000