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[master] Revised contrib/gregbook to work under cygwin/mingw.

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This commit is contained in:
Glenn Randers-Pehrson 2010-08-11 06:50:11 -05:00
parent 4dd011f6d0
commit 155889b318
6 changed files with 100 additions and 8 deletions
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1
ANNOUNCE
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@ -56,6 +56,7 @@ version 1.4.4beta05 [August 6, 2010]
version 1.4.4beta06 [August 11, 2010]
Don't try to use version-script with cygwin/mingw.
Revised contrib/gregbook to work under cygwin/mingw.
Send comments/corrections/commendations to glennrp at users.sourceforge.net
or to png-mng-implement at lists.sf.net (subscription required; visit

1
CHANGES
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@ -2640,6 +2640,7 @@ version 1.4.4beta05 [August 6, 2010]
version 1.4.4beta06 [August 11, 2010]
Don't try to use version-script with cygwin/mingw.
Revised contrib/gregbook to work under cygwin/mingw.
Send comments/corrections/commendations to glennrp at users.sourceforge.net
or to png-mng-implement at lists.sf.net (subscription required; visit

2
contrib/gregbook/README
View File

@ -165,7 +165,7 @@ RUNNING THE PROGRAMS: (VERY) BRIEF INTRO
rpng is a simple PNG viewer that can display transparent PNGs with a
specified background color; for example,
rpng -bgcolor #ff0000 toucan.png
rpng -bgcolor \#ff0000 toucan.png
would display the image with a red background. rpng2 is a progressive
viewer that simulates a web browser in some respects; it can display

2
contrib/gregbook/readpng2.c
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@ -138,7 +138,7 @@ int readpng2_init(mainprog_info *mainprog_ptr)
* version recognizes more chunks, add them to this list. If a
* future version of readpng2.c recognizes more chunks, delete them
* from this list. */
static const png_byte chunks_to_ignore[] = {
static /* const */ png_byte chunks_to_ignore[] = {
99, 72, 82, 77, '\0', /* cHRM */
104, 73, 83, 84, '\0', /* hIST */
105, 67, 67, 80, '\0', /* iCCP */

48
contrib/gregbook/rpng-win.c
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@ -85,7 +85,33 @@
#include <string.h>
#include <time.h>
#include <windows.h>
#ifdef __CYGWIN__
/* getch replacement. Turns out, we don't really need this,
* but leave it here if we ever enable any of the uses of
* _getch in the main code
*/
#include <unistd.h>
#include <termio.h>
#include <sys/ioctl.h>
int repl_getch( void )
{
char ch;
int fd = fileno(stdin);
struct termio old_tty, new_tty;
ioctl(fd, TCGETA, &old_tty);
new_tty = old_tty;
new_tty.c_lflag &= ~(ICANON | ECHO | ISIG);
ioctl(fd, TCSETA, &new_tty);
fread(&ch, 1, sizeof(ch), stdin);
ioctl(fd, TCSETA, &old_tty);
return ch;
}
#define _getch repl_getch
#else
#include <conio.h> /* only for _getch() */
#endif
/* #define DEBUG : this enables the Trace() macros */
@ -153,7 +179,7 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
filename = (char *)NULL;
#ifndef __CYGWIN__
/* First 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
@ -162,6 +188,7 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
AllocConsole();
freopen("CONOUT$", "a", stderr);
freopen("CONOUT$", "a", stdout);
#endif
/* Next set the default value for our display-system exponent, i.e.,
@ -279,7 +306,9 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
/* print usage screen if any errors up to this point */
if (error) {
#ifndef __CYGWIN__
int ch;
#endif
fprintf(stderr, "\n%s %s: %s\n\n", PROGNAME, VERSION, appname);
readpng_version_info();
@ -293,11 +322,15 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
"\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 after image is displayed to quit.\n"
#ifndef __CYGWIN__
"Press Q or Esc to quit this usage screen.\n"
#endif
"\n", PROGNAME, default_display_exponent);
#ifndef __CYGWIN__
do
ch = _getch();
while (ch != 'q' && ch != 'Q' && ch != 0x1B);
#endif
exit(1);
}
@ -333,18 +366,24 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
if (error) {
#ifndef __CYGWIN__
int ch;
#endif
fprintf(stderr, PROGNAME ": aborting.\n");
#ifndef __CYGWIN__
do
ch = _getch();
while (ch != 'q' && ch != 'Q' && ch != 0x1B);
#endif
exit(2);
} else {
fprintf(stderr, "\n%s %s: %s\n", PROGNAME, VERSION, appname);
#ifndef __CYGWIN__
fprintf(stderr,
"\n [console window: closing this window will terminate %s]\n\n",
PROGNAME);
#endif
}
@ -417,7 +456,12 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
/* wait for the user to tell us when to quit */
printf(
"Done. Press Q, Esc or mouse button 1 (within image window) to quit.\n");
#ifndef __CYGWIN__
"Done. Press Q, Esc or mouse button 1 (within image window) to quit.\n"
#else
"Done. Press mouse button 1 (within image window) to quit.\n"
#endif
);
fflush(stdout);
while (GetMessage(&msg, NULL, 0, 0)) {

54
contrib/gregbook/rpng2-win.c
View File

@ -96,7 +96,33 @@
#include <time.h>
#include <math.h> /* only for PvdM background code */
#include <windows.h>
#ifdef __CYGWIN__
/* getch replacement. Turns out, we don't really need this,
* but leave it here if we ever enable any of the uses of
* _getch in the main code
*/
#include <unistd.h>
#include <termio.h>
#include <sys/ioctl.h>
int repl_getch( void )
{
char ch;
int fd = fileno(stdin);
struct termio old_tty, new_tty;
ioctl(fd, TCGETA, &old_tty);
new_tty = old_tty;
new_tty.c_lflag &= ~(ICANON | ECHO | ISIG);
ioctl(fd, TCSETA, &new_tty);
fread(&ch, 1, sizeof(ch), stdin);
ioctl(fd, TCSETA, &old_tty);
return ch;
}
#define _getch repl_getch
#else
#include <conio.h> /* only for _getch() */
#endif
/* all for PvdM background code: */
#ifndef PI
@ -270,7 +296,7 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
filename = (char *)NULL;
memset(&rpng2_info, 0, sizeof(mainprog_info));
#ifndef __CYGWIN__
/* 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
@ -279,7 +305,7 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
AllocConsole();
freopen("CONOUT$", "a", stderr);
freopen("CONOUT$", "a", stdout);
#endif
/* Set the default value for our display-system exponent, i.e., the
* product of the CRT exponent and the exponent corresponding to
@ -413,7 +439,9 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
/* print usage screen if any errors up to this point */
if (error) {
#ifndef __CYGWIN__
int ch;
#endif
fprintf(stderr, "\n%s %s: %s\n\n", PROGNAME, VERSION, appname);
readpng2_version_info();
@ -432,16 +460,23 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
" -timing\tenables delay for every block read, to simulate modem\n"
"\t\t download of image (~36 Kbps)\n"
"\nPress Q, Esc or mouse button 1 after image is displayed to quit.\n"
#ifndef __CYGWIN__
"Press Q or Esc to quit this usage screen. ",
#else
,
#endif
PROGNAME,
#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__))
#if (defined(__i386__) || defined(_M_IX86) || defined(__x86_64__)) && \
!(defined(__CYGWIN__) || defined(__MINGW32__))
(int)strlen(PROGNAME), " ",
#endif
(int)strlen(PROGNAME), " ", default_display_exponent, num_bgpat);
fflush(stderr);
#ifndef __CYGWIN__
do
ch = _getch();
while (ch != 'q' && ch != 'Q' && ch != 0x1B);
#endif
exit(1);
}
@ -478,18 +513,24 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
if (error) {
#ifndef __CYGWIN__
int ch;
#endif
fprintf(stderr, PROGNAME ": aborting.\n");
#ifndef __CYGWIN__
do
ch = _getch();
while (ch != 'q' && ch != 'Q' && ch != 0x1B);
#endif
exit(2);
} else {
fprintf(stderr, "\n%s %s: %s\n", PROGNAME, VERSION, appname);
#ifndef __CYGWIN__
fprintf(stderr,
"\n [console window: closing this window will terminate %s]\n\n",
PROGNAME);
#endif
fflush(stderr);
}
@ -1132,7 +1173,12 @@ static void rpng2_win_finish_display()
rpng2_info.state = kDone;
printf(
"Done. Press Q, Esc or mouse button 1 (within image window) to quit.\n");
#ifndef __CYGWIN__
"Done. Press Q, Esc or mouse button 1 (within image window) to quit.\n"
#else
"Done. Press mouse button 1 (within image window) to quit.\n"
#endif
);
fflush(stdout);
}