New package: xzoom-0.3

closes #5650
This commit is contained in:
Daniel Santana 2018-12-10 13:13:53 -02:00 committed by maxice8
parent 46d78d9072
commit ca29d6e157
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3 changed files with 682 additions and 0 deletions

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@ -0,0 +1,11 @@
This program is distributed with no warranty.
Source files for this program may be distributed freely.
Modifications to this file are okay as long as:
a. This copyright notice and comment are preserved and
left at the top of the file.
b. The man page is fixed to reflect the change.
c. The author of this change adds his name and change
description to the list of changes below.
Executable files may be distributed with sources, or with
exact location where the source code can be obtained.

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@ -0,0 +1,647 @@
--- xzoom-0.3.orig/Imakefile
+++ xzoom-0.3/Imakefile
@@ -15,11 +15,11 @@
DEFINES = -DFRAME -DXSHM
-LOCAL_LIBRARIES = -lXext -lX11
+LOCAL_LIBRARIES = -lXext -lX11 -lXt
NAME = xzoom
-BINDIR = /usr/local/bin
-MANPATH = /usr/local/man
+BINDIR = /usr/bin
+MANPATH = /usr/share/man
SimpleProgramTarget($(NAME))
--- xzoom-0.3.orig/scale.h
+++ xzoom-0.3/scale.h
@@ -0,0 +1,102 @@
+/* scale image from SRC to DST - parameterized by type T */
+
+/* get pixel address of point (x,y) in image t */
+#define getP(t,x,y) \
+ (T *) (&ximage[t]->data[(ximage[t]->xoffset+(x))*sizeof(T) + \
+ (y)*ximage[t]->bytes_per_line])
+
+{
+ int i, j, k;
+
+ /* copy scaled lines from SRC to DST */
+ j = flipxy ? width[SRC] - 1 : height[SRC] - 1;
+ do {
+ T *p1;
+ T *p2;
+ int p2step;
+ T *p1_save;
+
+ /* p1 point to begining of scanline j*magy in DST */
+ p1 = getP(DST,0,j*magy);
+ p1_save = p1;
+ /* p2 point to begining of scanline j in SRC */
+ /* if flipy then line height[SRC]-1-j */
+ p2 = getP(SRC,0,flipy ? (height[SRC]-1-j) : j);
+
+ if (flipxy)
+ {
+ p2 = getP(SRC,flipy ? j : (width[SRC]-1-j),0);
+ p2step = ximage[SRC]->bytes_per_line / sizeof(T);
+
+ if (flipx)
+ {
+ p2 += p2step * (height[SRC]-1);
+ p2step = -p2step;
+ }
+
+ i = height[SRC];
+ do {
+ T c = *p2; p2 += p2step;
+ k = magx; do *p1++ = c; while (--k > 0);
+ } while (--i > 0);
+ }
+ else if (flipx)
+ {
+ p2 += width[SRC];
+ i = width[SRC];
+ do {
+ T c = *--p2;
+ k = magx; do *p1++ = c; while (--k > 0);
+ } while (--i > 0);
+ }
+ else
+ {
+ i = width[SRC];
+ do {
+ T c = *p2++;
+ k = magx; do *p1++ = c; while (--k > 0);
+ } while (--i > 0);
+ }
+
+ /* draw vertical grid */
+ if (gridy && magx >= 2)
+ {
+ p1 = p1_save - 1;
+ i = magx;
+ k = flipxy ? height[SRC] : width[SRC];
+ do {
+ p1 += i;
+ *p1 ^= ~((T)0);
+ } while (--k > 0);
+ }
+
+ /* duplicate that line as needed */
+ if (magy > 1)
+ {
+ /* p1 point to begining of scanline j*magy in DST */
+ p1 = p1_save;
+ /* p2 points to begining of next line */
+ p2 = p1;
+ p2step = ximage[DST]->bytes_per_line / sizeof(T);
+
+ i = width[DST] * sizeof(T);
+ k = magy - 1;
+ do {
+ p2 += p2step;
+ memcpy(p2, p1, i);
+ } while (--k > 0);
+
+ /* draw horizontal grid */
+ if (gridx && magy >= 2)
+ {
+ k = width[DST];
+ do {
+ *p2++ ^= ~((T)0);
+ } while (--k > 0);
+ }
+ }
+ } while (--j >= 0);
+}
+
+#undef getP
+
--- xzoom-0.3.orig/xzoom.c
+++ xzoom-0.3/xzoom.c
@@ -12,13 +12,22 @@
exact location where the source code can be obtained.
Changelist:
-Author Description
------- -----------
-Itai Nahshon Version 0.1, Nov. 21 1995
-Itai Nahshon Version 0.2, Apr. 17 1996
- include <sys/types.h>
- Use memmove() instead of memcopy()
- Optional macro to replace call to usleep().
+Author Description
+------ -----------
+Itai Nahshon Version 0.1, Nov. 21 1995
+Itai Nahshon Version 0.2, Apr. 17 1996
+ include <sys/types.h>
+ Use memmove() instead of memcopy()
+ Optional macro to replace call to usleep().
+Markus F.X.J. Oberhumer Version 0.4, Feb. 18 1998
+ split into 2 files (scale.h)
+ added support for 15, 16, 24 and 32 bpp displays
+ added a grid (press key 'g')
+ optimized scaling routines
+ use memcpy() instead of memmove() ;-)
+ some other minor changes/fixes
+tony mancill 2002/02/13 <tmancill@debian.org>
+ hacked in support for WM_DELETE_WINDOW
*/
#include <stdio.h>
@@ -48,6 +57,9 @@
Display *dpy;
Screen *scr;
Window win;
+Atom wm_delete_window;
+Atom wm_protocols;
+Status status;
GC gc;
#ifdef FRAME
@@ -87,8 +99,12 @@
int xzoom_flag = False; /* next mag change only to magx */
int yzoom_flag = False; /* next mag change only to magy */
+int gridx = False;
+int gridy = False;
+
int width[2] = { 0, WIDTH };
int height[2] = { 0, HEIGHT };
+unsigned depth = 0;
#ifdef XSHM
XShmSegmentInfo shminfo[2]; /* Segment info. */
@@ -106,6 +122,7 @@
void
timeout_func(int signum) {
set_title = True;
+ signum = signum; /* UNUSED */
}
#ifdef FRAME
@@ -116,9 +133,6 @@
void
allocate_images(void) {
int i;
-#ifndef XSHM
- char *data;
-#endif
for(i = 0; i < 2; i++) {
@@ -137,7 +151,7 @@
shminfo[i].shmid = shmget(IPC_PRIVATE,
(unsigned int)(ximage[i]->bytes_per_line * ximage[i]->height),
IPC_CREAT | 0777);
-
+
if(shminfo[i].shmid < 0) {
perror("shmget");
exit(-1);
@@ -163,20 +177,21 @@
shmctl(shminfo[i].shmid, IPC_RMID, 0);
#else
- data = malloc(width[i] * height[i]);
+ char *data;
+ data = malloc(BitmapUnit(dpy) / 8 * width[i] * height[i]);
ximage[i] = XCreateImage(dpy,
DefaultVisualOfScreen(scr),
DefaultDepthOfScreen(scr),
ZPixmap, 0, data,
- width[i], height[i], 8, width[i]);
+ width[i], height[i], 32, 0);
if(ximage[i] == NULL) {
perror("XCreateImage");
exit(-1);
}
-#endif XSHM
+#endif /* XSHM */
}
created_images = True;
}
@@ -185,6 +200,9 @@
destroy_images(void) {
int i;
+ if (!created_images)
+ return;
+
for(i = 0; i < 2; i++) {
#ifdef XSHM
XShmDetach(dpy, &shminfo[i]); /* ask X11 to detach shared segment */
@@ -195,6 +213,8 @@
ximage[i]->data = NULL; /* remove refrence to that address */
XDestroyImage(ximage[i]); /* and destroy image */
}
+
+ created_images = False;
}
void
@@ -230,8 +250,7 @@
void
resize(int new_width, int new_height) {
- if(created_images)
- destroy_images(); /* we can get rid of these */
+ destroy_images(); /* we can get rid of these */
/* find new dimensions for source */
@@ -244,9 +263,13 @@
height[SRC] = (new_height+magy-1) / magy;
}
+ if(width[SRC] < 1)
+ width[SRC] = 1;
if(width[SRC] > WidthOfScreen(scr))
width[SRC] = WidthOfScreen(scr);
+ if(height[SRC] < 1)
+ height[SRC] = 1;
if(height[SRC] > HeightOfScreen(scr))
height[SRC] = HeightOfScreen(scr);
@@ -270,12 +293,34 @@
height[DST] = new_height;
}
+
+void scale8(void)
+{
+#define T unsigned char
+#include "scale.h"
+#undef T
+}
+
+
+void scale16(void)
+{
+#define T unsigned short
+#include "scale.h"
+#undef T
+}
+
+
+void scale32(void)
+{
+#define T unsigned int
+#include "scale.h"
+#undef T
+}
+
+
int
main(int argc, char **argv) {
XSetWindowAttributes xswa;
- int i, j, k;
- char c;
- char *p1, *p2;
XEvent event;
int buttonpressed = False;
int unmapped = True;
@@ -286,8 +331,9 @@
int source_geom_mask = NoValue,
dest_geom_mask = NoValue,
copy_from_src_mask;
- int xpos = 0, ypos = 0;
+ int xpos = 0, ypos = 0;
+ atexit(destroy_images);
progname = strrchr(argv[0], '/');
if(progname)
++progname;
@@ -312,7 +358,7 @@
if(magx <= 0)
Usage();
-
+
magy = argc > 1 ? atoi(argv[1]) : -1;
@@ -340,7 +386,7 @@
flipxy = True;
continue;
}
-
+
if(!strcmp(argv[0], "-source")) {
++argv; --argc;
@@ -438,23 +484,24 @@
scr = DefaultScreenOfDisplay(dpy);
- if(DefaultDepthOfScreen(scr) != 8) {
- fprintf(stderr, "%s: can work only with 8 bits/pixel\n", progname);
+ depth = DefaultDepthOfScreen(scr);
+ if (depth < 8) {
+ fprintf(stderr, "%s: need at least 8 bits/pixel\n", progname);
exit(1);
}
if(source_geom_mask & XNegative)
xgrab += WidthOfScreen(scr);
-
+
if(source_geom_mask & YNegative)
ygrab += HeightOfScreen(scr);
if(dest_geom_mask & XNegative)
xpos += WidthOfScreen(scr);
-
+
if(source_geom_mask & YNegative)
ypos += HeightOfScreen(scr);
-
+
/* printf("=%dx%d+%d+%d\n", width[DST], height[DST], xpos, ypos); */
xswa.event_mask = ButtonPressMask|ButtonReleaseMask|ButtonMotionMask;
@@ -463,24 +510,33 @@
xswa.background_pixel = BlackPixelOfScreen(scr);
win = XCreateWindow(dpy, RootWindowOfScreen(scr),
- xpos, ypos, width[DST], height[DST], 0,
+ xpos, ypos, width[DST], height[DST], 0,
DefaultDepthOfScreen(scr), InputOutput,
DefaultVisualOfScreen(scr),
CWEventMask | CWBackPixel, &xswa);
- XChangeProperty(dpy, win, XA_WM_ICON_NAME, XA_STRING, 8,
+ XChangeProperty(dpy, win, XA_WM_ICON_NAME, XA_STRING, 8,
PropModeReplace,
(unsigned char *)progname, strlen(progname));
/*
- XChangeProperty(dpy, win, XA_WM_NAME, XA_STRING, 8,
+ XChangeProperty(dpy, win, XA_WM_NAME, XA_STRING, 8,
PropModeReplace,
(unsigned char *)progname, strlen(progname));
*/
+
+ /*** 20020213
+ code added by <tmancill@debian.org> to handle
+ window manager "close" event
+ ***/
+ wm_delete_window = XInternAtom (dpy, "WM_DELETE_WINDOW", False);
+ wm_protocols = XInternAtom(dpy, "WM_PROTOCOLS", False);
+ status = XSetWMProtocols(dpy, win, &wm_delete_window, 1);
+
set_title = True;
- XMapWindow(dpy, win);
+ status = XMapWindow(dpy, win);
gcv.plane_mask = AllPlanes;
gcv.subwindow_mode = IncludeInferiors;
@@ -512,7 +568,7 @@
{
static char bitmap_data[] = { 0 };
static XColor col = { 0 };
- Pixmap curs = XCreatePixmapFromBitmapData(dpy,
+ Pixmap curs = XCreatePixmapFromBitmapData(dpy,
RootWindowOfScreen(scr), bitmap_data, 1, 1, 0, 0, 1);
when_button = XCreatePixmapCursor(dpy, curs, curs, &col, &col, 0, 0);
@@ -526,11 +582,22 @@
for(;;) {
+ /*****
+ old event loop updated to support WM messages
while(unmapped?
(XWindowEvent(dpy, win, (long)-1, &event), 1):
XCheckWindowEvent(dpy, win, (long)-1, &event)) {
-
+ ******/
+
+ while(XPending(dpy)) {
+ XNextEvent(dpy, &event);
switch(event.type) {
+ case ClientMessage:
+ if ((event.xclient.message_type == wm_protocols) &&
+ (event.xclient.data.l[0] == wm_delete_window)) {
+ exit(0);
+ }
+ break;
case ConfigureNotify:
if(event.xconfigure.width != width[DST] ||
event.xconfigure.height != height[DST]) {
@@ -567,6 +634,7 @@
case '+':
case '=':
+ case XK_KP_Add:
if(!yzoom_flag) ++magx;
if(!xzoom_flag) ++magy;
xzoom_flag = yzoom_flag = False;
@@ -575,6 +643,7 @@
break;
case '-':
+ case XK_KP_Subtract:
if(!yzoom_flag) --magx;
if(!xzoom_flag) --magy;
xzoom_flag = yzoom_flag = False;
@@ -585,6 +654,7 @@
break;
case XK_Left:
+ case XK_KP_Left:
if(flipxy)
if(flipx)
ygrab += scroll;
@@ -598,6 +668,7 @@
break;
case XK_Right:
+ case XK_KP_Right:
if(flipxy)
if(flipx)
ygrab -= scroll;
@@ -611,6 +682,7 @@
break;
case XK_Up:
+ case XK_KP_Up:
if(flipxy)
if(flipy)
xgrab -= scroll;
@@ -624,6 +696,7 @@
break;
case XK_Down:
+ case XK_KP_Down:
if(flipxy)
if(flipy)
xgrab += scroll;
@@ -666,12 +739,17 @@
xzoom_flag = False;
break;
+ case 'g':
+ gridx = !gridx;
+ gridy = !gridy;
+ break;
+
case 'd':
if(++delay_index >= NDELAYS)
delay_index = 0;
delay = delays[delay_index];
sprintf(title, "delay = %d ms", delay/1000);
- XChangeProperty(dpy, win, XA_WM_NAME, XA_STRING, 8,
+ XChangeProperty(dpy, win, XA_WM_NAME, XA_STRING, 8,
PropModeReplace,
(unsigned char *)title, strlen(title));
signal(SIGALRM, timeout_func);
@@ -717,6 +795,7 @@
#endif
}
break;
+
}
/* trying XShmGetImage when part of the rect is
@@ -736,6 +815,7 @@
if(ygrab > HeightOfScreen(scr)-height[SRC])
ygrab = HeightOfScreen(scr)-height[SRC];
+
}
#ifdef XSHM
@@ -753,63 +833,12 @@
}
#endif
- /* copy scaled lines from src to dst */
- for(j = flipxy?width[SRC]:height[SRC]; --j >= 0; ) {
- /* p1 point to begining of scanline j*magy in DST */
- p1 = &ximage[DST]->data[ximage[DST]->xoffset +
- j*magy*ximage[DST]->bytes_per_line ];
- /* p2 point to begining of scanline j in SRC */
- /* if flipy then line height[SRC]-1-j */
- p2 = &ximage[SRC]->data[ximage[SRC]->xoffset +
- (flipy?(height[SRC]-1-j):j)*ximage[SRC]->bytes_per_line ];
-
- if(flipxy) {
- int p2step = ximage[SRC]->bytes_per_line;
- p2 = &ximage[SRC]->data[ximage[SRC]->xoffset + (flipy?j:(width[SRC]-1-j))];
-
- if(flipx) {
- p2 += p2step * (height[SRC]-1);
- p2step = -p2step;
- }
-
- for(i = height[SRC]; --i >= 0;) {
- c = *p1++ = *p2;
- p2 += p2step;
- for(k = magx; --k > 0; )
- *p1++ = c;
- }
- }
- else if(flipx) {
- p2 += width[SRC];
- for(i = width[SRC]; --i >= 0;) {
- c = *p1++ = *--p2;
- for(k = magx; --k > 0; )
- *p1++ = c;
- }
- }
- else {
- for(i = width[SRC]; --i >= 0;) {
- c = *p1++ = *p2++;
- for(k = magx; --k > 0; )
- *p1++ = c;
- }
- }
-
- /* p1 point to begining of scanline j*magy in DST */
- p1 = &ximage[DST]->data[ximage[DST]->xoffset +
- j*magy*ximage[DST]->bytes_per_line ];
- /* p2 points to begining of next line */
- p2 = p1 + ximage[DST]->bytes_per_line;
- /* duplicate that line as needed */
- for(k = magy; --k > 0; ) {
-#ifdef BCOPY
- bcopy(p1, p2, width[DST]);
-#else
- memmove(p2, p1, width[DST]);
-#endif
- p2 += ximage[DST]->bytes_per_line;
- }
- }
+ if (depth == 8)
+ scale8();
+ else if (depth <= 8*sizeof(short))
+ scale16();
+ else if (depth <= 8*sizeof(int))
+ scale32();
#ifdef XSHM
XShmPutImage(dpy, win, gc, ximage[DST], 0, 0, 0, 0, width[DST], height[DST], False);
@@ -825,7 +854,7 @@
flipx?"-":"", magx,
flipxy?" <=>":";",
flipy?"-":"", magy);
- XChangeProperty(dpy, win, XA_WM_NAME, XA_STRING, 8,
+ XChangeProperty(dpy, win, XA_WM_NAME, XA_STRING, 8,
PropModeReplace,
(unsigned char *)title, strlen(title));
set_title = False;
--- xzoom-0.3.orig/xzoom.man
+++ xzoom-0.3/xzoom.man
@@ -1,9 +1,9 @@
.\" xzoom.man
.\" Copyright Itai Nahshon
.\"
-.TH XZOOM 1X
+.TH XZOOM 1x
.SH NAME
-xzoom \-
+xzoom \- magnify part of the screen, with fast updates
.SH SYNOPSIS
.B xzoom
[ \-display \fIdisplayname\fP ] [ \-mag \fImag\fP [ \fImag\fP ] ]
@@ -18,7 +18,7 @@
.TP 5
.B \-mag \fImag\fP [ \fImag\fP ]
What magnification to use. If two number arguments are supplied the
-first is used for X magniications and the second is used for Y magnification.
+first is used for X magnifications and the second is used for Y magnification.
Magnification should be greater than 0.
.TP 5
.B \-x
@@ -85,6 +85,9 @@
sets the delay between frame updates.
Built-in delays are 200, 100, 50, 10 and 0 ms.
.TP 5
+.B g
+toggle grid on and off.
+.TP 5
.B Mouse buttons
To set the location of the magnified are click the left mouse
button inside xzoom's window and then move it (keep the button
@@ -147,11 +150,6 @@
display is not on the local host.
.LP 5
\(dg
-The Ximage data is accessed directly, in a way which may
-not be portable. Xzoom will not run with display depth other
-than 8 bits per pixel.
-.LP 5
-\(dg
Xzoom is given with no warranty. It was tested only under
Linux with Xfree86 release 3.1.2 (X11R6).
.LP 5

24
srcpkgs/xzoom/template Normal file
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@ -0,0 +1,24 @@
# Template file for 'xzoom'
pkgname=xzoom
version=0.3
revision=1
hostmakedepends="imake"
makedepends="libXt-devel libXext-devel"
short_desc="Magnify part of X display, with real-time updates"
maintainer="Daniel Santana <daniel@santana.tech>"
license="Custom"
homepage="http://sunsite.unc.edu/pub/linux/libs/X/"
distfiles="http://webdiis.unizar.es/pub/unix/X11/${pkgname}-${version}.tgz"
checksum=b26bfd692d3e1d30e8d524d4018fc3f0fe847983a2778a4a2496784bfc2df44b
patch_args="-Np1"
do_build() {
CC=cc xmkmf
sed -i "s@-O2@$CFLAGS@" ./Makefile
make CC=$CC CDEBUGFLAGS="${CFLAGS}" EXTRA_LDOPTIONS="${LDFLAGS}"
}
do_install() {
make MANSUFFIX=1 DESTDIR=${DESTDIR} install install.man
vlicense ${FILESDIR}/COPYING
}