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Imported from libpng-1.0.9beta2.tar

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This commit is contained in:
Glenn Randers-Pehrson
2000-11-18 18:19:14 -06:00
parent fbbb5ecb52
commit f5ed0e130c
70 changed files with 1269 additions and 1711 deletions
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102
contrib/gregbook/Makefile.sgi
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@@ -1,102 +0,0 @@
# Sample makefile for rpng-x / rpng2-x / wpng for SGI using cc and make.
# Greg Roelofs
# Last modified: 16 January 1000
#
# The programs built by this makefile are described in the book,
# "PNG: The Definitive Guide," by Greg Roelofs (O'Reilly and
# Associates, 1999). Go buy a copy, eh? Buy some for friends
# and family, too. (Not that this is a blatant plug or anything.)
#
# Invoke this makefile from a shell prompt in the usual way; for example:
#
# make -f Makefile.sgi
#
# This makefile assumes libpng and zlib have already been built or downloaded
# and are both installed in /usr/local/{include,lib} (as indicated by the
# PNG* and Z* macros below). Edit as appropriate--choose only ONE each of
# the PNGINC, PNGLIB, ZINC and ZLIB lines.
#
# This makefile builds dynamically linked executables (against libpng and zlib,
# that is), but that can be changed by uncommenting the appropriate PNGLIB and
# ZLIB lines.
# macros --------------------------------------------------------------------
PNGINC = -I/usr/local/include
PNGLIB = -L/usr/local/lib -lpng # dynamically linked against libpng
#PNGLIB = /usr/local/lib/libpng.a # statically linked against libpng
# or:
#PNGINC = -I../..
#PNGLIB = -L../.. -lpng
#PNGLIB = ../../libpng.a
ZINC = -I/usr/local/include
ZLIB = -L/usr/local/lib -lz # dynamically linked against zlib
#ZLIB = /usr/local/lib/libz.a # statically linked against zlib
#ZINC = -I../zlib
#ZLIB = -L../zlib -lz
#ZLIB = ../../../zlib/libz.a
XINC = -I/usr/include/X11 # old-style, stock X distributions
XLIB = -L/usr/lib/X11 -lX11
#XINC = -I/usr/openwin/include # Sun workstations (OpenWindows)
#XLIB = -L/usr/openwin/lib -lX11
#XINC = -I/usr/X11R6/include # new X distributions (XFree86, etc.)
#XLIB = -L/usr/X11R6/lib -lX11
INCS = $(PNGINC) $(ZINC) $(XINC)
RLIBS = $(PNGLIB) $(ZLIB) $(XLIB) -lm
WLIBS = $(PNGLIB) $(ZLIB)
CC = cc
LD = cc
RM = rm -f
CFLAGS = -O -fullwarn $(INCS)
LDFLAGS =
O = .o
E =
RPNG = rpng-x
RPNG2 = rpng2-x
WPNG = wpng
ROBJS = $(RPNG)$(O) readpng$(O)
ROBJS2 = $(RPNG2)$(O) readpng2$(O)
WOBJS = $(WPNG)$(O) writepng$(O)
EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
# implicit make rules -------------------------------------------------------
.c$(O):
$(CC) -c $(CFLAGS) $<
# dependencies --------------------------------------------------------------
all: $(EXES)
$(RPNG)$(E): $(ROBJS)
$(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBS)
$(RPNG2)$(E): $(ROBJS2)
$(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBS)
$(WPNG)$(E): $(WOBJS)
$(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBS)
$(RPNG)$(O): $(RPNG).c readpng.h
$(RPNG2)$(O): $(RPNG2).c readpng2.h
$(WPNG)$(O): $(WPNG).c writepng.h
readpng$(O): readpng.c readpng.h
readpng2$(O): readpng2.c readpng2.h
writepng$(O): writepng.c writepng.h
# maintenance ---------------------------------------------------------------
clean:
$(RM) $(EXES) $(ROBJS) $(ROBJS2) $(WOBJS)

4
contrib/gregbook/readpng2.c
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@@ -4,7 +4,7 @@
---------------------------------------------------------------------------
Copyright (c) 1998-2001 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2000 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
@@ -51,7 +51,6 @@ void readpng2_version_info(void)
{
fprintf(stderr, " Compiled with libpng %s; using libpng %s.\n",
PNG_LIBPNG_VER_STRING, png_libpng_ver);
fprintf(stderr, " Compiled with zlib %s; using zlib %s.\n",
ZLIB_VERSION, zlib_version);
}
@@ -111,6 +110,7 @@ int readpng2_init(mainprog_info *mainprog_ptr)
png_set_progressive_read_fn(png_ptr, mainprog_ptr,
readpng2_info_callback, readpng2_row_callback, readpng2_end_callback);
/* make sure we save our pointers for use in readpng2_decode_data() */
mainprog_ptr->png_ptr = png_ptr;

7
contrib/gregbook/readpng2.h
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@@ -4,7 +4,7 @@
---------------------------------------------------------------------------
Copyright (c) 1998-2001 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2000 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
@@ -66,11 +66,6 @@ typedef struct _mainprog_info {
int rowbytes;
int channels;
int need_bgcolor;
#if (defined(__i386__) || defined(_M_IX86))
int nommxfilters;
int nommxcombine;
int nommxinterlace;
#endif
int done;
uch bg_red;
uch bg_green;

60
contrib/gregbook/rpng2-win.c
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@@ -11,6 +11,7 @@
Meulen for the "diamond" and "radial waves" patterns, respectively.
to do:
- stdout/stderr don't work! need message window (maybe scrollable?)
- handle quoted command-line args (especially filenames with spaces)
- finish resizable checkerboard-gradient (sizes 4-128?)
- use %.1023s to simplify truncation of title-bar string?
@@ -24,12 +25,10 @@
- 1.03: modified to allow abbreviated options
- 1.04: removed bogus extra argument from usage fprintf() [Glenn R-P?];
fixed command-line parsing bug
- 1.10: enabled "message window" (console), thanks to David Geldreich
- 1.20: added runtime MMX-enabling/disabling and new -mmx* options
---------------------------------------------------------------------------
Copyright (c) 1998-2001 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2000 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
@@ -56,7 +55,7 @@
#define PROGNAME "rpng2-win"
#define LONGNAME "Progressive PNG Viewer for Windows"
#define VERSION "1.20 of 4 January 2001"
#define VERSION "1.04 of 19 March 2000"
#include <stdio.h>
#include <stdlib.h>
@@ -65,7 +64,6 @@
#include <time.h>
#include <math.h> /* only for PvdM background code */
#include <windows.h>
#include <conio.h> /* only for _getch() */
/* all for PvdM background code: */
#ifndef PI
@@ -241,16 +239,6 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
memset(&rpng2_info, 0, sizeof(mainprog_info));
/* Next reenable console output, which normally goes to the bit bucket
* for windowed apps. Closing the console window will terminate the
* app. Thanks to David.Geldreich@realviz.com for supplying the magical
* incantation. */
AllocConsole();
freopen("CONOUT$", "a", stderr);
freopen("CONOUT$", "a", stdout);
/* Set the default value for our display-system exponent, i.e., the
* product of the CRT exponent and the exponent corresponding to
* the frame-buffer's lookup table (LUT), if any. This is not an
@@ -366,14 +354,6 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
}
} else if (!strncmp(*argv, "-timing", 2)) {
timing = TRUE;
#if (defined(__i386__) || defined(_M_IX86))
} else if (!strncmp(*argv, "-nommxfilters", 7)) {
rpng2_info.nommxfilters = TRUE;
} else if (!strncmp(*argv, "-nommxcombine", 7)) {
rpng2_info.nommxcombine = TRUE;
} else if (!strncmp(*argv, "-nommxinterlace", 7)) {
rpng2_info.nommxinterlace = TRUE;
#endif
} else {
if (**argv != '-') {
filename = *argv;
@@ -421,47 +401,25 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
/* usage screen */
if (error) {
int ch;
fprintf(stderr, "\n%s %s: %s\n\n", PROGNAME, VERSION, appname);
fprintf(stderr, "\n%s %s: %s\n", PROGNAME, VERSION, appname);
readpng2_version_info();
fprintf(stderr, "\n"
"Usage: %s [-gamma exp] [-bgcolor bg | -bgpat pat] [-timing]\n"
#if (defined(__i386__) || defined(_M_IX86))
" %*s [-nommxfilters] [-nommxcombine] [-nommxinterlace]\n"
#endif
" %*s file.png\n\n"
"Usage: %s [-gamma exp] [-bgcolor bg | -bgpat pat] [-timing]"
" file.png\n\n"
" exp \ttransfer-function exponent (``gamma'') of the display\n"
"\t\t system in floating-point format (e.g., ``%.1f''); equal\n"
"\t\t to the product of the lookup-table exponent (varies)\n"
"\t\t and the CRT exponent (usually 2.2); must be positive\n"
" bg \tdesired background color in 7-character hex RGB format\n"
"\t\t (e.g., ``#ff7700'' for orange: same as HTML colors);\n"
"\t\t used with transparent images; overrides -bgpat option\n"
"\t\t used with transparent images; overrides -bgpat\n"
" pat \tdesired background pattern number (1-%d); used with\n"
"\t\t transparent images; overrides -bgcolor option\n"
"\t\t transparent images; overrides -bgcolor\n"
" -timing\tenables delay for every block read, to simulate modem\n"
"\t\t download of image (~36 Kbps)\n"
#if (defined(__i386__) || defined(_M_IX86))
" -nommx*\tdisable optimized MMX routines for decoding row filters,\n"
"\t\t combining rows, and expanding interlacing, respectively\n"
#endif
"\nPress Q, Esc or mouse button 1 after image is displayed to quit.\n"
"Press Q or Esc to quit this usage screen.\n"
"\n", PROGNAME,
#if (defined(__i386__) || defined(_M_IX86))
strlen(PROGNAME), " ",
#endif
strlen(PROGNAME), " ", default_display_exponent, num_bgpat);
do
ch = _getch();
while (ch != 'q' && ch != 'Q' && ch != 0x1B);
"\n", PROGNAME, default_display_exponent, num_bgpat);
exit(1);
} else {
fprintf(stderr, "\n%s %s: %s\n", PROGNAME, VERSION, appname);
fprintf(stderr,
"\n [console window: closing this window will terminate %s]\n\n",
PROGNAME);
}

29
contrib/gregbook/rpng2-x.c
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@@ -25,11 +25,10 @@
- 1.10: added support for non-default visuals; fixed X pixel-conversion
- 1.11: added -usleep option for demos; fixed command-line parsing bug
- 1.12: added -pause option for demos and testing
- 1.20: added runtime MMX-enabling/disabling and new -mmx* options
---------------------------------------------------------------------------
Copyright (c) 1998-2001 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2000 Greg Roelofs. All rights reserved.
This software is provided "as is," without warranty of any kind,
express or implied. In no event shall the author or contributors
@@ -56,7 +55,7 @@
#define PROGNAME "rpng2-x"
#define LONGNAME "Progressive PNG Viewer for X"
#define VERSION "1.20 of 4 January 2001"
#define VERSION "1.12 of 19 March 2000"
#include <stdio.h>
#include <stdlib.h>
@@ -360,14 +359,6 @@ int main(int argc, char **argv)
pause_after_pass = TRUE;
} else if (!strncmp(*argv, "-timing", 2)) {
timing = TRUE;
#if (defined(__i386__) || defined(_M_IX86))
} else if (!strncmp(*argv, "-nommxfilters", 7)) {
rpng2_info.nommxfilters = TRUE;
} else if (!strncmp(*argv, "-nommxcombine", 7)) {
rpng2_info.nommxcombine = TRUE;
} else if (!strncmp(*argv, "-nommxinterlace", 7)) {
rpng2_info.nommxinterlace = TRUE;
#endif
} else {
if (**argv != '-') {
filename = *argv;
@@ -423,13 +414,10 @@ int main(int argc, char **argv)
/* usage screen */
if (error) {
fprintf(stderr, "\n%s %s: %s\n\n", PROGNAME, VERSION, appname);
fprintf(stderr, "\n%s %s: %s\n", PROGNAME, VERSION, appname);
readpng2_version_info();
fprintf(stderr, "\n"
"Usage: %s [-display xdpy] [-gamma exp] [-bgcolor bg | -bgpat pat]\n"
#if (defined(__i386__) || defined(_M_IX86))
" %*s [-nommxfilters] [-nommxcombine] [-nommxinterlace]\n"
#endif
" %*s [-usleep dur | -timing] [-pause] file.png\n\n"
" xdpy\tname of the target X display (e.g., ``hostname:0'')\n"
" exp \ttransfer-function exponent (``gamma'') of the display\n"
@@ -441,10 +429,6 @@ int main(int argc, char **argv)
"\t\t used with transparent images; overrides -bgpat\n"
" pat \tdesired background pattern number (1-%d); used with\n"
"\t\t transparent images; overrides -bgcolor\n"
#if (defined(__i386__) || defined(_M_IX86))
" -nommx*\tdisable optimized MMX routines for decoding row filters,\n"
"\t\t combining rows, and expanding interlacing, respectively\n"
#endif
" dur \tduration in microseconds to wait after displaying each\n"
"\t\t row (for demo purposes)\n"
" -timing\tenables delay for every block read, to simulate modem\n"
@@ -452,11 +436,8 @@ int main(int argc, char **argv)
" -pause\tpauses after displaying each pass until key pressed\n"
"\nPress Q, Esc or mouse button 1 (within image window, after image\n"
"is displayed) to quit.\n"
"\n", PROGNAME,
#if (defined(__i386__) || defined(_M_IX86))
strlen(PROGNAME), " ",
#endif
strlen(PROGNAME), " ", default_display_exponent, num_bgpat);
"\n", PROGNAME, strlen(PROGNAME), " ", default_display_exponent,
num_bgpat);
exit(1);
}