/* $OpenBSD: xtsscale.c,v 1.16 2010/12/06 06:49:47 jasper Exp $ */ /* * Copyright (c) 2007 Robert Nagy * Copyright (c) 2009 Matthieu Herrb * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBSD * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * Copyright 1996 by Frederic Lepied, France. * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the name of the authors not be used in * advertising or publicity pertaining to distribution of the software without * specific, written prior permission. The authors make no * representations about the suitability of this software for any purpose. It * is provided "as is" without express or implied warranty. * * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. * */ #include #include #include #include #include #include #include #include #include #include #include #include #define FONT_NAME "mono" #define FONT_SIZE 14 #define Background "white" #define TouchCross "black" #define PromptText "black" #define Error "red" #define INVALID_EVENT_TYPE -1 static int motion_type = INVALID_EVENT_TYPE; static int button_press_type = INVALID_EVENT_TYPE; static int button_release_type = INVALID_EVENT_TYPE; static int proximity_in_type = INVALID_EVENT_TYPE; static int proximity_out_type = INVALID_EVENT_TYPE; int has_xrandr = False; int has_xrandr_1_2 = False; int has_xrandr_1_3 = False; int has_xinerama = False; Atom prop_calibration, prop_swap; /* where the calibration points are placed */ #define SCREEN_DIVIDE 16 #define SCREEN_MAX 0x800 #define M_POINT (SCREEN_MAX/SCREEN_DIVIDE) int MARK_POINT[] = {M_POINT, SCREEN_MAX - 1 - M_POINT}; int touched = 0; char *deviceName; Display *display; int screen; Window root; Window win; XftFont *font; XftColor cross, errorColor, promptColor, bg; XftDraw *draw; unsigned int xpos, ypos, width, height; /* window size */ char *progname; Bool interrupted = False; Bool verbose = False; int cx[5], cy[5]; int x[5], y[5]; extern char * __progname; struct { int minx, maxx, miny, maxy, swapxy, resx, resy; } calib, old_calib; Bool old_swap; static char *prompt_message[] = { "TOUCH SCREEN CALIBRATION", "Press on the cross hairs please...", "Use the ESC key to cancel.", NULL }; static char *error_message[] = { "Not accurate enough.", "Try again...", NULL }; void cleanup_exit(XDevice *device) { long values[4]; values[0] = old_calib.minx; values[1] = old_calib.maxx; values[2] = old_calib.miny; values[3] = old_calib.maxy; XChangeDeviceProperty(display, device, prop_calibration, XA_INTEGER, 32, PropModeReplace, (unsigned char *)values, 4); XChangeDeviceProperty(display, device, prop_swap, XA_INTEGER, 8, PropModeReplace, (unsigned char *)&old_swap, 1); XCloseDevice(display, device); XUngrabServer(display); XUngrabKeyboard(display, CurrentTime); XCloseDisplay(display); exit(1); } void render_init(void) { font = XftFontOpen(display, screen, XFT_FAMILY, XftTypeString, FONT_NAME, XFT_SIZE, XftTypeInteger, FONT_SIZE, NULL); if (!XftColorAllocName(display, XDefaultVisual(display, screen), DefaultColormap(display, screen), TouchCross, &cross)) { fprintf(stderr, "Cannot get color"); exit(2); } if (!XftColorAllocName(display, XDefaultVisual(display, screen), DefaultColormap(display, screen), PromptText, &promptColor)) { fprintf(stderr, "Cannot get color"); exit(2); } if (!XftColorAllocName(display, XDefaultVisual(display, screen), DefaultColormap(display, screen), Background, &bg)) { fprintf(stderr, "Cannot get bg color"); exit(2); } if (!XftColorAllocName(display, XDefaultVisual(display, screen), DefaultColormap(display, screen), Error, &errorColor)) { fprintf(stderr, "Cannot get color"); exit(2); } draw = XftDrawCreate(display, win, DefaultVisual(display, screen), DefaultColormap(display, screen)); } void draw_point(int x, int y, int width, int size, XftColor *color) { XPointDouble p[4]; p[0].x = x - size; p[0].y = y - 1; p[1].x = x - size; p[1].y = y + 1; p[2].x = x + size; p[2].y = y + 1; p[3].x = x + size; p[3].y = y - 1; XRenderCompositeDoublePoly(display, PictOpOver, XftDrawSrcPicture(draw, color), XftDrawPicture(draw), XRenderFindStandardFormat(display, PictStandardA8), 0, 0, 0, 0, p, 4, 0); p[0].x = x - 1; p[0].y = y - size; p[1].x = x + 1; p[1].y = y - size; p[2].x = x + 1; p[2].y = y + size; p[3].x = x - 1; p[3].y = y + size; XRenderCompositeDoublePoly(display, PictOpOver, XftDrawSrcPicture(draw, color), XftDrawPicture(draw), XRenderFindStandardFormat(display, PictStandardA8), 0, 0, 0, 0, p, 4, 0); } void draw_text(char **message, XftColor *color) { int len; int i, x, y; XGlyphInfo extents; i = 0; y = height / 3; while (message[i] != NULL) { len = strlen(message[i]); XftTextExtents8(display, font, message[i], len, &extents); x = (width - extents.width)/2; XftDrawString8(draw, color, font, x, y, message[i], len); y += extents.height * 1.5; i++; } } void draw_graphics(int i, int j, int n) { draw_text(prompt_message, &promptColor); if (n == 2) { cx[n] = width / 2; cy[n] = height / 2; } else { cx[n] = (MARK_POINT[i] * width) / SCREEN_MAX; cy[n] = (MARK_POINT[j] * height) / SCREEN_MAX; } draw_point(cx[n], cy[n], width / 200, width / 64, &cross); } Cursor create_empty_cursor(void) { char nothing[] = {0}; XColor nullcolor; Pixmap src = XCreateBitmapFromData(display, root, nothing, 1, 1); Pixmap msk = XCreateBitmapFromData(display, root, nothing, 1, 1); Cursor mcyursor = XCreatePixmapCursor(display, src, msk, &nullcolor, &nullcolor, 0, 0); XFreePixmap(display, src); XFreePixmap(display, msk); return mcyursor; } XDeviceInfo* find_device_info(char *name) { XDeviceInfo *devices; XDeviceInfo *found = NULL; int i, max_id; int num_devices, num_found; Bool is_id = True; XID id = (XID)-1; const char *errstr; devices = XListInputDevices(display, &num_devices); max_id = 0; for (i = 0; i < num_devices; i++) if (devices[i].id > max_id) max_id = devices[i].id; if (name != NULL) { for(i = 0; i < strlen(name); i++) { if (!isdigit(name[i])) { is_id = False; break; } } if (is_id) { id = strtonum(name, 0, max_id, &errstr); if (errstr != NULL) { fprintf(stderr, "Invalid device id %s: %s\n", name, errstr); exit(1); } } } num_found = 0; for(i = 0; i < num_devices; i++) { if (devices[i].use != IsXExtensionPointer) continue; if (name == NULL) { found = &devices[i]; num_found++; continue; } if ((!is_id && strcmp(devices[i].name, name) == 0) || (is_id && devices[i].id == id)) { found = &devices[i]; num_found++; } } if (num_found > 1) { fprintf(stderr, "Error: found multiple matching devices.\n" "To ensure the correct one is selected, please use " "the device ID instead.\n"); return NULL; } return found; } static int register_events(XDeviceInfo *info, XDevice *device, Bool handle_proximity) { int number = 0; /* number of events registered */ XEventClass event_list[7]; int i; unsigned long screen; XInputClassInfo *ip; screen = DefaultScreen(display); if (device->num_classes > 0) { for (ip = device->classes, i=0; inum_classes; ip++, i++) { switch (ip->input_class) { case ButtonClass: DeviceButtonPress(device, button_press_type, event_list[number]); number++; DeviceButtonRelease(device, button_release_type, event_list[number]); number++; break; case ValuatorClass: DeviceMotionNotify(device, motion_type, event_list[number]); number++; if (handle_proximity) { ProximityIn(device, proximity_in_type, event_list[number]); number++; ProximityOut(device, proximity_out_type, event_list[number]); number++; } break; default: fprintf(stderr, "Found unknown device class %d\n", ip->input_class); break; } } if (XSelectExtensionEvent(display, root, event_list, number)) { fprintf(stderr, "Error selecting extended events\n"); return 0; } } return number; } static Bool get_events(int i) { XEvent Event; XDeviceMotionEvent *motion = (XDeviceMotionEvent *) &Event; int j, a; char c; x[i] = y[i] = -1; while (1) { XNextEvent(display, &Event); if (Event.type == motion_type) { for (j = 0; j < motion->axes_count; j++) { a = motion->first_axis + j; switch (a) { case 0: x[i] = motion->axis_data[j]; break; case 1: y[i] = motion->axis_data[j]; break; default: fprintf(stderr, "Unknown axis %d\n", a); } } } else if (Event.type == button_release_type) { if (x[i] != -1 && y[i] != -1) break; } else if (Event.type == KeyPress) { a = XLookupString(&Event.xkey, &c, 1, NULL, NULL); if ((a == 1) && ((c == 'q') || (c == 'Q') || (c == '\03') || (c == '\033'))) { interrupted++; return False; } } } if (verbose) printf("x[%d] = %d y[%d] = %d\n", i, x[i], i, y[i]); return True; } int uncalibrate(XDevice *device) { Atom type; int format; unsigned long nitems, nbytes; long values[4] = { 0, 32767, 0, 32767 }; /* uncalibrated */ Bool swap = 0; unsigned char *retval; /* Save old values */ XGetDeviceProperty(display, device, prop_calibration, 0, 4, False, XA_INTEGER, &type, &format, &nitems, &nbytes, &retval); if (type != XA_INTEGER) { fprintf(stderr, "Device property \"%s\": invalid type %s\n", WS_PROP_CALIBRATION, XGetAtomName(display, type)); return -1; } if (nitems != 4 && nitems != 0) { fprintf(stderr, "Device property \"%s\": " "invalid number of items %ld\n", WS_PROP_CALIBRATION, nitems); return -1; } old_calib.minx = *(long *)retval; old_calib.maxx = *((long *)retval + 1); old_calib.miny = *((long *)retval + 2); old_calib.maxy = *((long *)retval + 3); XFree(retval); XGetDeviceProperty(display, device, prop_swap, 0, 1, False, XA_INTEGER, &type, &format, &nitems, &nbytes, &retval); old_swap = *(Bool *)retval; XFree(retval); /* Force uncalibrated state */ XChangeDeviceProperty(display, device, prop_calibration, XA_INTEGER, 32, PropModeReplace, (unsigned char *)values, 4); XChangeDeviceProperty(display, device, prop_swap, XA_INTEGER, 8, PropModeReplace, (unsigned char *)&swap, 1); return 0; } void get_xrandr_config(Display *dpy, Window root, char *name, int *x, int *y, int *width, int *height) { XRRScreenResources *res; XRROutputInfo *output_info; XRRCrtcInfo *crtc_info; int o, found = 0; res = XRRGetScreenResources(dpy, root); for (o = 0; o < res->noutput; o++) { output_info = XRRGetOutputInfo (dpy, res, res->outputs[o]); if (!output_info) { fprintf(stderr, "could not get output 0x%lx information\n", res->outputs[o]); exit(2); } if (output_info->crtc != 0) { crtc_info = XRRGetCrtcInfo(dpy, res, output_info->crtc); if (!crtc_info) { fprintf(stderr, "%s: could not get crtc 0x%lx " "information\n", __progname, output_info->crtc); exit(2); } printf("%s: %dx%d+%d+%d\n", output_info->name, crtc_info->width, crtc_info->height, crtc_info->x, crtc_info->y); if (!strcmp(output_info->name, name)) { *x = crtc_info->x; *y = crtc_info->y; *width = crtc_info->width; *height = crtc_info->height; found = 1; } } } if (!found) { fprintf(stderr, "%s: output %s not found\n", __progname, name); exit(2); } } void __dead usage(void) { fprintf(stderr, "usage: xtsscale [-D display][-d device][-o output]\n"); exit(2); } int main(int argc, char *argv[], char *env[]) { char *display_name = NULL; char *device_name = NULL; char *output_name = NULL; XSetWindowAttributes xswa; int i = 0; double a, a1, a2, b, b1, b2, xerr, yerr; int xi_opcode, event, error; XExtensionVersion *version; XDeviceInfo *info; XDevice *device; long calib_data[4]; unsigned char swap; int ch; /* Crosshair placement */ int cpx[] = { 0, 0, 1, 1, 1 }; int cpy[] = { 0, 1, 0, 0, 1 }; while ((ch = getopt(argc, argv, "D:d:o:v")) != -1) { switch (ch) { case 'D': display_name = optarg; break; case 'd': device_name = optarg; break; case 'o': output_name = optarg; break; case 'v': verbose = True; break; default: usage(); /* NOTREACHED */ } } argc -= optind; argv += optind; if (argc != 0) usage(); /* connect to X server */ if ((display = XOpenDisplay(display_name)) == NULL) { fprintf(stderr, "%s: cannot connect to X server %s\n", argv[0], XDisplayName(display_name)); exit(1); } screen = DefaultScreen(display); root = RootWindow(display, screen); /* get screen size from display structure macro */ xpos = 0; ypos = 0; width = DisplayWidth(display, screen); height = DisplayHeight(display, screen); if (XRRQueryExtension(display, &event, &error)) { int major, minor; if (XRRQueryVersion(display, &major, &minor) != True) { fprintf(stderr, "Error querying XRandR version"); } else { printf("XRandR extension version %d.%d present\n", major, minor); has_xrandr = True; if (major > 1 || (major == 1 && minor >=2)) has_xrandr_1_2 = True; if (major > 1 || (major == 1 && minor >=3)) has_xrandr_1_3 = True; } } if (output_name != NULL) { if (has_xrandr_1_2) { get_xrandr_config(display, root, output_name, &xpos, &ypos, &width, &height); } else { fprintf(stderr, "%s: can not specify an output " "whithout XRandr 1.2 or later", __progname); exit(2); } } if (!XQueryExtension(display, INAME, &xi_opcode, &event, &error)) { fprintf(stderr, "%s: X Input extension not available.\n", argv[0]); exit(1); } version = XGetExtensionVersion(display, INAME); if (version == NULL || version == (XExtensionVersion *)NoSuchExtension) { fprintf(stderr, "Cannot query X Input version.\n"); exit(1); } XFree(version); info = find_device_info(device_name); if (info == NULL) { fprintf(stderr, "Unable to find the %s device\n", device_name ? device_name : "default"); exit(1); } prop_calibration = XInternAtom(display, WS_PROP_CALIBRATION, True); if (prop_calibration == None) { fprintf(stderr, "Unable to find the \"%s\" device property.\n" "There are probably no calibrable devices " "on this system.\n", WS_PROP_CALIBRATION); exit(1); } prop_swap = XInternAtom(display, WS_PROP_SWAP_AXES, True); if (prop_swap == None) { fprintf(stderr, "Unable to find the \"%s\" device property\n", WS_PROP_SWAP_AXES); exit(1); } /* setup window attributes */ xswa.override_redirect = True; xswa.background_pixel = BlackPixel(display, screen); xswa.event_mask = ExposureMask | KeyPressMask; xswa.cursor = create_empty_cursor(); win = XCreateWindow(display, RootWindow(display, screen), xpos, ypos, width, height, 0, CopyFromParent, InputOutput, CopyFromParent, CWOverrideRedirect | CWBackPixel | CWEventMask | CWCursor, &xswa); render_init(); XMapWindow(display, win); XGrabKeyboard(display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime); XGrabServer(display); XClearWindow(display, win); device = XOpenDevice(display, info->id); if (!device) { fprintf(stderr, "Unable to open the X input device \"%s\"\n", info->name); return 0; } if (!register_events(info, device, 0)) exit(1); uncalibrate(device); calib: XftDrawRect(draw, &bg, 0, 0, width, height); for (i = 0; i < 5; i++) { draw_graphics(cpx[i], cpy[i], i); XFlush(display); if (!get_events(i)) break; XftDrawRect(draw, &bg, 0, 0, width, height); } if (interrupted) cleanup_exit(device); /* Check if X and Y should be swapped */ if (fabs(x[0] - x[1]) > fabs(y[0] - y[1])) { calib.swapxy = 1; for (i = 0; i < 5; i++) { int t = x[i]; x[i] = y[i]; y[i] = t; } } /* get touch pad resolution to screen resolution ratio */ a1 = (double) (x[4] - x[0]) / (double) (cx[4] - cx[0]); a2 = (double) (x[3] - x[1]) / (double) (cx[3] - cx[1]); /* get the minimum pad position on the X-axis */ b1 = x[0] - a1 * cx[0]; b2 = x[1] - a2 * cx[1]; /* use the average ratio and average minimum position */ a = (a1 + a2) / 2.0; b = (b1 + b2) / 2.0; xerr = a * width / 2 + b - x[2]; if (fabs(xerr) > fabs(a * width * .01)) { fprintf(stderr, "Calibration problem: X axis error (%.2f) too high, try again\n", fabs(xerr)); goto err; } calib.minx = (int) (b + 0.5); calib.maxx = (int) (a * width + b + 0.5); /* get touch pad resolution to screen resolution ratio */ a1 = (double) (y[4] - y[0]) / (double) (cy[4] - cy[0]); a2 = (double) (y[3] - y[1]) / (double) (cy[3] - cy[1]); /* get the minimum pad position on the Y-axis */ b1 = y[0] - a1 * cy[0]; b2 = y[1] - a2 * cy[1]; /* use the average ratio and average minimum position */ a = (a1 + a2) / 2.0; b = (b1 + b2) / 2.0; yerr = a * height / 2 + b - y[2]; if (fabs(yerr) > fabs(a * height * 0.01)) { fprintf(stderr, "Calibration problem: Y axis error (%.2f) too high, try again\n", fabs(yerr)); goto err; } calib.miny = (int) (b + 0.5); calib.maxy = (int) (a * height + b + 0.5); XFlush(display); calib.resx = width; calib.resy = height; /* Send new values to the X server */ calib_data[0] = calib.minx; calib_data[1] = calib.maxx; calib_data[2] = calib.miny; calib_data[3] = calib.maxy; XChangeDeviceProperty(display, device, prop_calibration, XA_INTEGER, 32, PropModeReplace, (unsigned char *)calib_data, 4); swap = calib.swapxy; XChangeDeviceProperty(display, device, prop_swap, XA_INTEGER, 8, PropModeReplace, (unsigned char *)&swap, 1); XCloseDevice(display, device); XCloseDisplay(display); /* And print them for storage in wsconsctl.conf */ printf("mouse.scale=%d,%d,%d,%d,%d,%d,%d\n", calib.minx, calib.maxx, calib.miny, calib.maxy, calib.swapxy, calib.resx, calib.resy); return 0; err: draw_text(error_message, &errorColor); XFlush(display); sleep(2); goto calib; }