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Imported from libpng-1.2.26beta03.tar

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This commit is contained in:
Glenn Randers-Pehrson
2008-03-16 17:23:05 -05:00
parent c13f8f10e6
commit 3236beddf8
57 changed files with 380 additions and 272 deletions
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56
contrib/gregbook/rpng-x.c
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@@ -25,10 +25,11 @@
- 1.13: fixed XFreeGC() crash bug (thanks to Patrick Welche)
- 1.14: added support for X resources (thanks to Gerhard Niklasch)
- 2.00: dual-licensed (added GNU GPL)
- 2.01: fixed improper display of usage screen on PNG error(s)
---------------------------------------------------------------------------
Copyright (c) 1998-2007 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2008 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
@@ -79,7 +80,7 @@
#define PROGNAME "rpng-x"
#define LONGNAME "Simple PNG Viewer for X"
#define VERSION "2.00 of 2 June 2007"
#define VERSION "2.01 of 16 March 2008"
#define RESNAME "rpng" /* our X resource application name */
#define RESCLASS "Rpng" /* our X resource class name */
@@ -265,9 +266,33 @@ int main(int argc, char **argv)
}
}
if (!filename) {
if (!filename)
++error;
} else if (!(infile = fopen(filename, "rb"))) {
/* print usage screen if any errors up to this point */
if (error) {
fprintf(stderr, "\n%s %s: %s\n", PROGNAME, VERSION, appname);
readpng_version_info();
fprintf(stderr, "\n"
"Usage: %s [-display xdpy] [-gamma exp] [-bgcolor bg] file.png\n"
" xdpy\tname of the target X display (e.g., ``hostname:0'')\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\n"
"\nPress Q, Esc or mouse button 1 (within image window, after image\n"
"is displayed) to quit.\n"
"\n", PROGNAME, default_display_exponent);
exit(1);
}
if (!(infile = fopen(filename, "rb"))) {
fprintf(stderr, PROGNAME ": can't open PNG file [%s]\n", filename);
++error;
} else {
@@ -280,8 +305,7 @@ int main(int argc, char **argv)
break;
case 2:
fprintf(stderr, PROGNAME
": [%s] has bad IHDR (libpng longjmp)\n",
filename);
": [%s] has bad IHDR (libpng longjmp)\n", filename);
break;
case 4:
fprintf(stderr, PROGNAME ": insufficient memory\n");
@@ -306,25 +330,9 @@ int main(int argc, char **argv)
}
/* usage screen */
if (error) {
fprintf(stderr, "\n%s %s: %s\n", PROGNAME, VERSION, appname);
readpng_version_info();
fprintf(stderr, "\n"
"Usage: %s [-display xdpy] [-gamma exp] [-bgcolor bg] file.png\n"
" xdpy\tname of the target X display (e.g., ``hostname:0'')\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\n"
"\nPress Q, Esc or mouse button 1 (within image window, after image\n"
"is displayed) to quit.\n"
"\n", PROGNAME, default_display_exponent);
exit(1);
fprintf(stderr, PROGNAME ": aborting.\n");
exit(2);
}