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freebsd-ports/x11/xzoom/files/patch-ac
Yukihiro Nakai 044fe0d8a2 Fix and updates from KATO Tsuguru. 
Submitted by:		"KATO Tsuguru" <tkato@prontomail.ne.jp>
2000-01-22 11:46:45 +00:00

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--- xzoom.c.orig Wed May 29 18:40:51 1996
+++ xzoom.c Sat Jan 15 00:00:00 2000
@@ -12,13 +12,20 @@
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
*/
#include <stdio.h>
@@ -87,8 +94,12 @@
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 +117,7 @@
void
timeout_func(int signum) {
set_title = True;
+ signum = signum; /* UNUSED */
}
#ifdef FRAME
@@ -116,9 +128,6 @@
void
allocate_images(void) {
int i;
-#ifndef XSHM
- char *data;
-#endif
for(i = 0; i < 2; i++) {
@@ -137,7 +146,7 @@
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 +172,21 @@
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 +195,9 @@
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 +208,8 @@
ximage[i]->data = NULL; /* remove refrence to that address */
XDestroyImage(ximage[i]); /* and destroy image */
}
+
+ created_images = False;
}
void
@@ -230,8 +245,7 @@
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 +258,13 @@
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 +288,34 @@
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 +326,9 @@
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 +353,7 @@
if(magx <= 0)
Usage();
-
+
magy = argc > 1 ? atoi(argv[1]) : -1;
@@ -340,7 +381,7 @@
flipxy = True;
continue;
}
-
+
if(!strcmp(argv[0], "-source")) {
++argv; --argc;
@@ -438,23 +479,24 @@
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;
@@ -463,17 +505,17 @@
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));
*/
@@ -512,7 +554,7 @@
{
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);
@@ -567,6 +609,7 @@
case '+':
case '=':
+ case XK_KP_Add:
if(!yzoom_flag) ++magx;
if(!xzoom_flag) ++magy;
xzoom_flag = yzoom_flag = False;
@@ -575,6 +618,7 @@
break;
case '-':
+ case XK_KP_Subtract:
if(!yzoom_flag) --magx;
if(!xzoom_flag) --magy;
xzoom_flag = yzoom_flag = False;
@@ -585,6 +629,7 @@
break;
case XK_Left:
+ case XK_KP_Left:
if(flipxy)
if(flipx)
ygrab += scroll;
@@ -598,6 +643,7 @@
break;
case XK_Right:
+ case XK_KP_Right:
if(flipxy)
if(flipx)
ygrab -= scroll;
@@ -611,6 +657,7 @@
break;
case XK_Up:
+ case XK_KP_Up:
if(flipxy)
if(flipy)
xgrab -= scroll;
@@ -624,6 +671,7 @@
break;
case XK_Down:
+ case XK_KP_Down:
if(flipxy)
if(flipy)
xgrab += scroll;
@@ -666,12 +714,17 @@
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 +770,7 @@
#endif
}
break;
+
}
/* trying XShmGetImage when part of the rect is
@@ -736,6 +790,7 @@
if(ygrab > HeightOfScreen(scr)-height[SRC])
ygrab = HeightOfScreen(scr)-height[SRC];
+
}
#ifdef XSHM
@@ -753,63 +808,12 @@
}
#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 +829,7 @@
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;
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