/*
- */
+ * Interaction with the YPP client via X11
+ */
+/*
+ * This is part of ypp-sc-tools, a set of third-party tools for assisting
+ * players of Yohoho Puzzle Pirates.
+ *
+ * Copyright (C) 2009 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Yohoho and Puzzle Pirates are probably trademarks of Three Rings and
+ * are used without permission. This program is not endorsed or
+ * sponsored by Three Rings.
+ */
+
+/*
+ * Only this file #includes the X11 headers, as they're quite
+ * pollutant of the namespace.
+ */
#include "structure.h"
DEBUG_DEFINE_DEBUGF(pages)
+#define xassert(what) \
+ ((what) ? (void)0 : \
+ fatal("X11 operation unexpectedly failed." \
+ " %s:%d: %s\n", __FILE__,__LINE__,#what))
+
static KeyCode keycode(KeySym sym) {
return XKeysymToKeycode(disp,sym);
}
void screenshot_startup(void) {
- int r;
progress("starting...");
- disp= XOpenDisplay(0); eassert(disp);
- r= gettimeofday(&tv_startup,0); eassert(!r);
+ disp= XOpenDisplay(0);
+ if (!disp) fatal("Unable to open X11 display.");
+ sysassert(! gettimeofday(&tv_startup,0) );
}
/*---------- pager ----------*/
static double timestamp(void) {
struct timeval tv;
- int r;
- r= gettimeofday(&tv,0); eassert(!r);
+ sysassert(! gettimeofday(&tv,0) );
double t= (tv.tv_sec - tv_startup.tv_sec) +
(tv.tv_usec - tv_startup.tv_usec) * 1e-6;
debugf("PAGING %f\n",t);
return t;
}
static void delay(double need_sleep) {
- int r;
debugf("PAGING delay %f\n",need_sleep);
- r= usleep(need_sleep * 1e6); eassert(!r);
+ sysassert(! usleep(need_sleep * 1e6) );
}
static void sync_after_input(void) {
- int r;
- r= XSync(disp, False); eassert(r);
+ xassert( XSync(disp, False) );
last_input= timestamp();
}
static void translate_coords_toroot(int wx, int wy, int *rx, int *ry) {
- int r;
Window dummy;
- r= XTranslateCoordinates(disp, id,attr.root, wx,wy, rx,ry, &dummy);
- eassert(r);
+ xassert( XTranslateCoordinates(disp, id,attr.root, wx,wy, rx,ry, &dummy) );
}
static void check_client_window_all_on_screen(void) {
- int r;
- int rxpos, rypos;
+ Rect onroot;
unsigned rwidth, rheight;
Window dummy;
unsigned bd, depth;
+ int rxpos, rypos;
- r= XGetGeometry(disp,attr.root, &dummy, &rxpos,&rypos,
- &rwidth, &rheight,
- &bd,&depth);
+ xassert( XGetGeometry(disp,attr.root, &dummy, &rxpos,&rypos,
+ &rwidth, &rheight,
+ &bd,&depth) );
- translate_coords_toroot(0,0, &rxpos,&rypos);
- eassert(rxpos>=0 && rypos>=0);
-
- translate_coords_toroot(wwidth-1,wheight-1, &rxpos,&rypos);
- eassert(rxpos<rwidth && rypos<rheight);
+ translate_coords_toroot(0,0, &onroot.tl.x,&onroot.tl.y);
+ translate_coords_toroot(wwidth-1,wheight-1, &onroot.br.x,&onroot.br.y);
+ if (!(onroot.tl.x >= 0 &&
+ onroot.tl.y >= 0 &&
+ onroot.br.x < rwidth &&
+ onroot.br.y < rheight))
+ fatal("YPP client window is not entirely on the screen.");
}
static void check_not_disturbed(void) {
switch (ev.type) {
case VisibilityNotify:
- eassert(ev.xvisibility.state == VisibilityUnobscured);
+ if (ev.xvisibility.state != VisibilityUnobscured)
+ fatal("YPP client window has become obscured.");
break;
case ConfigureNotify:
check_client_window_all_on_screen();
break;
case FocusOut:
- eassert(!"focus left YPP client window");
+ fatal("Focus left YPP client window.");
break;
case FocusIn:
warning("focus entered YPP client window ?!");
break;
default:
- eassert(!"unexpected X11 event");
+ fatal("Received unexpected X11 event (type code %d)!", ev.type);
}
}
}
va_start(al,fmt);
Snapshot *last=0;
- int r;
/* waits longer if we're going to return an image identical to previously
* if previously==0, all images are considered identical to it */
last_input, previously);
char *doing;
- r= vasprintf(&doing,fmt,al); eassert(r>=0);
+ sysassert( vasprintf(&doing,fmt,al) >=0);
progress("%s",doing);
}
static void raise_and_get_details(void) {
- int r;
int evbase,errbase,majver,minver;
int wxpos, wypos;
unsigned bd,depth;
debugf("PAGING raise_and_get_details\n");
- r= XTestQueryExtension(disp, &evbase,&errbase,&majver,&minver);
- eassert(r==True);
+ int xtest= XTestQueryExtension(disp, &evbase,&errbase,&majver,&minver);
+ if (!xtest) fatal("X server does not support the XTEST extension.");
- r= XRaiseWindow(disp, id); eassert(r);
+ xassert( XRaiseWindow(disp, id) );
/* in case VisibilityNotify triggers right away before we have had a
* change to raise; to avoid falsely detecting lowering in that case */
- r= XSelectInput(disp, id,
- StructureNotifyMask|
- VisibilityChangeMask
- ); eassert(r);
+ xassert( XSelectInput(disp, id,
+ StructureNotifyMask|
+ VisibilityChangeMask
+ ) );
- r= XRaiseWindow(disp, id); eassert(r);
+ xassert( XRaiseWindow(disp, id) );
/* in case the window was lowered between our Raise and our SelectInput;
* to avoid failing to detect that lowering */
- r= XGetWindowAttributes(disp, id, &attr); eassert(r);
- r= XGetGeometry(disp,id, &attr.root,
- &wxpos,&wypos, &wwidth,&wheight,
- &bd,&depth);
+ xassert( XGetWindowAttributes(disp, id, &attr) );
+ xassert( XGetGeometry(disp,id, &attr.root,
+ &wxpos,&wypos, &wwidth,&wheight,
+ &bd,&depth) );
- eassert(wwidth >= 320 && wheight >= 320);
+ if (!(wwidth >= 320 && wheight >= 320))
+ fatal("YPP client window is implausibly small?");
check_client_window_all_on_screen();
}
static void set_focus(void) {
- int r;
int screen= XScreenNumberOfScreen(attr.screen);
progress("taking control of YPP client window...");
sync_after_input();
delay(0.5);
- r= XSelectInput(disp, id,
- StructureNotifyMask|
- VisibilityChangeMask|
- FocusChangeMask
- ); eassert(r);
+ xassert( XSelectInput(disp, id,
+ StructureNotifyMask|
+ VisibilityChangeMask|
+ FocusChangeMask
+ ) );
translate_coords_toroot(10,10, &xpos,&ypos);
XTestFakeMotionEvent(disp,screen, xpos,ypos, 0);
}
});
- eassert(!fflush(screenshots_file));
+ sysassert(!ferror(screenshots_file));
+ sysassert(!fflush(screenshots_file));
return im;
}
for (;;) {
debugf("paging page %d\n",npages);
- eassert(npages < MAX_PAGES);
+ if (!(npages < MAX_PAGES))
+ fatal("Paging down seems to generate too many pages - max is %d.",
+ MAX_PAGES);
+
page_images[npages]= convert_page(current);
free_snapshot(&last); last=current; current=0;
void find_yppclient_window(void) {
Window root, gotroot, gotparent;
- int screen, r;
+ int screen;
int nfound=0;
if (id) return;
#define S(x) (sizeof((x))-1)
Atom wm_name= XInternAtom(disp,"WM_NAME",True);
- eassert(wm_name != None);
+ xassert(wm_name != None);
for (screen=0; screen<ScreenCount(disp); screen++) {
debugfind("FINDYPP screen %d\n", screen);
unsigned int nchildren1;
Window *children1=0;
- r= XQueryTree(disp,root,
+ xassert( XQueryTree(disp,root,
&gotroot,&gotparent,
- &children1,&nchildren1);
- eassert(r);
+ &children1,&nchildren1) );
debugfind("FINDYPP screen %d nchildren1=%d\n", screen, nchildren1);
int i;
unsigned int nchildren2;
Window *children2=0;
- r= XQueryTree(disp,w1,
- &gotroot,&gotparent,
- &children2,&nchildren2);
- eassert(r);
+ xassert( XQueryTree(disp,w1,
+ &gotroot,&gotparent,
+ &children2,&nchildren2) );
debugfind("FINDYPP screen %d c1[%2d]=0x%08lx nchildren2=%d\n",
screen, i, (unsigned long)w1, nchildren2);
unsigned long len, gotbytesafter;
char *title;
unsigned char *gottitle=0;
- r= XGetWindowProperty(disp,w2, wm_name,0,512, False,
- AnyPropertyType,&gottype, &gotfmt, &len,
- &gotbytesafter, &gottitle);
- eassert(!r);
+ xassert( !XGetWindowProperty(disp,w2, wm_name,0,512, False,
+ AnyPropertyType,&gottype, &gotfmt, &len,
+ &gotbytesafter, &gottitle) );
title= (char*)gottitle;
if (DEBUGP(findypp)) {
REQUIRE( !memcmp(spc1, onthe, S(onthe)) );
#define ASSIGN(what, start, end) do { \
- r= asprintf(&what, "%.*s", end - start, start); eassert(r>0); \
+ sysassert( asprintf(&what, "%.*s", (end)-(start), start) >0 ); \
}while(0)
- ASSIGN(ocean, title + S(prefix), spc1);
- ASSIGN(pirate, spc1 + S(onthe), (title + len) - S(suffix));
+ ASSIGN(pirate, title + S(prefix), spc1);
+ ASSIGN(ocean, spc1 + S(onthe), (title + len) - S(suffix));
debugfind(" YES!\n");
id= w2;
nfound++;
- progress_log("found YPP client window (0x%lx): %s on the %s ocean.",
- (unsigned long)id, pirate, ocean);
+ progress_log("found YPP client (0x%lx):"
+ " %s ocean - %s.",
+ (unsigned long)id, ocean, pirate);
}
if (children2) XFree(children2);
}
if (children1) XFree(children1);
}
- eassert(nfound==1);
+ if (nfound>1)
+ fatal("Found several YPP clients."
+ " Close one, or specify the windowid with --window-id.\n");
+ if (nfound<1)
+ fatal("Did not find YPP client."
+ " Use --window-id and/or report this as a fault.\n");
}