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Diffstat (limited to 'panels/wacom/calibrator/main.c')
| -rw-r--r-- | panels/wacom/calibrator/main.c | 421 |
1 files changed, 421 insertions, 0 deletions
diff --git a/panels/wacom/calibrator/main.c b/panels/wacom/calibrator/main.c new file mode 100644 index 0000000..71421c7 --- /dev/null +++ b/panels/wacom/calibrator/main.c @@ -0,0 +1,421 @@ +/* + * Copyright (c) 2009 Tias Guns + * Copyright (c) 2009 Soren Hauberg + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "config.h" + +#include <stdlib.h> +#include <ctype.h> +#include <string.h> +#include <dirent.h> +#include <glib/gi18n.h> + +#include <X11/extensions/XInput.h> + +#include "calibrator-gui.h" +#include "calibrator.h" + +static GMainLoop *mainloop = NULL; + +/** + * find a calibratable touchscreen device (using XInput) + * + * if pre_device is NULL, the last calibratable device is selected. + * retuns number of devices found, + * the data of the device is returned in the last 3 function parameters + */ +static int find_device(const char* pre_device, gboolean verbose, gboolean list_devices, + XID* device_id, const char** device_name, XYinfo* device_axis) +{ + gboolean pre_device_is_id = TRUE; + int found = 0; + + Display* display = XOpenDisplay(NULL); + if (display == NULL) { + fprintf(stderr, "Unable to connect to X server\n"); + exit(1); + } + + int xi_opcode, event, error; + if (!XQueryExtension(display, "XInputExtension", &xi_opcode, &event, &error)) { + fprintf(stderr, "X Input extension not available.\n"); + exit(1); + } + + /* verbose, get Xi version */ + if (verbose) { + XExtensionVersion *version = XGetExtensionVersion(display, INAME); + + if (version && (version != (XExtensionVersion*) NoSuchExtension)) { + printf("DEBUG: %s version is %i.%i\n", + INAME, version->major_version, version->minor_version); + XFree(version); + } + } + + if (pre_device != NULL) { + /* check whether the pre_device is an ID (only digits) */ + int len = strlen(pre_device); + int loop; + for (loop=0; loop<len; loop++) { + if (!isdigit(pre_device[loop])) { + pre_device_is_id = FALSE; + break; + } + } + } + + + if (verbose) + printf("DEBUG: Skipping virtual master devices and devices without axis valuators.\n"); + int ndevices; + XDeviceInfoPtr list, slist; + slist=list=(XDeviceInfoPtr) XListInputDevices (display, &ndevices); + int i; + for (i=0; i<ndevices; i++, list++) + { + if (list->use == IsXKeyboard || list->use == IsXPointer) /* virtual master device */ + continue; + + /* if we are looking for a specific device */ + if (pre_device != NULL) { + if ((pre_device_is_id && list->id == (XID) atoi(pre_device)) || + (!pre_device_is_id && strcmp(list->name, pre_device) == 0)) { + /* OK, fall through */ + } else { + /* skip, not this device */ + continue; + } + } + + XAnyClassPtr any = (XAnyClassPtr) (list->inputclassinfo); + int j; + for (j=0; j<list->num_classes; j++) + { + + if (any->class == ValuatorClass) + { + XValuatorInfoPtr V = (XValuatorInfoPtr) any; + XAxisInfoPtr ax = (XAxisInfoPtr) V->axes; + + if (V->mode != Absolute) { + if (verbose) + printf("DEBUG: Skipping device '%s' id=%i, does not report Absolute events.\n", + list->name, (int)list->id); + } else if (V->num_axes < 2 || + (ax[0].min_value == -1 && ax[0].max_value == -1) || + (ax[1].min_value == -1 && ax[1].max_value == -1)) { + if (verbose) + printf("DEBUG: Skipping device '%s' id=%i, does not have two calibratable axes.\n", + list->name, (int)list->id); + } else { + /* a calibratable device (has 2 axis valuators) */ + found++; + *device_id = list->id; + *device_name = g_strdup(list->name); + device_axis->x_min = ax[0].min_value; + device_axis->x_max = ax[0].max_value; + device_axis->y_min = ax[1].min_value; + device_axis->y_max = ax[1].max_value; + + if (list_devices) + printf("Device \"%s\" id=%i\n", *device_name, (int)*device_id); + } + + } + + /* + * Increment 'any' to point to the next item in the linked + * list. The length is in bytes, so 'any' must be cast to + * a character pointer before being incremented. + */ + any = (XAnyClassPtr) ((char *) any + any->length); + } + + } + XFreeDeviceList(slist); + XCloseDisplay(display); + + return found; +} + +static void usage(char* cmd, unsigned thr_misclick) +{ + fprintf(stderr, "Usage: %s [-h|--help] [-v|--verbose] [--list] [--device <device name or id>] [--precalib <minx> <maxx> <miny> <maxy>] [--misclick <nr of pixels>] [--output-type <auto|xorg.conf.d|hal|xinput>] [--fake]\n", cmd); + fprintf(stderr, "\t-h, --help: print this help message\n"); + fprintf(stderr, "\t-v, --verbose: print debug messages during the process\n"); + fprintf(stderr, "\t--list: list calibratable input devices and quit\n"); + fprintf(stderr, "\t--device <device name or id>: select a specific device to calibrate\n"); + fprintf(stderr, "\t--precalib: manually provide the current calibration setting (eg. the values in xorg.conf)\n"); + fprintf(stderr, "\t--misclick: set the misclick threshold (0=off, default: %i pixels)\n", + thr_misclick); + fprintf(stderr, "\t--fake: emulate a fake device (for testing purposes)\n"); +} + +static struct Calib* CalibratorXorgPrint(const char* const device_name0, const XYinfo *axis0, const gboolean verbose0, const int thr_misclick, const int thr_doubleclick) +{ + struct Calib* c = (struct Calib*)calloc(1, sizeof(struct Calib)); + c->threshold_misclick = thr_misclick; + c->threshold_doubleclick = thr_doubleclick; + + printf("Calibrating standard Xorg driver \"%s\"\n", device_name0); + printf("\tcurrent calibration values: min_x=%lf, max_x=%lf and min_y=%lf, max_y=%lf\n", + axis0->x_min, axis0->x_max, axis0->y_min, axis0->y_max); + printf("\tIf these values are estimated wrong, either supply it manually with the --precalib option, or run the 'get_precalib.sh' script to automatically get it (through HAL).\n"); + + return c; +} + +static struct Calib* main_common(int argc, char** argv) +{ + gboolean verbose = FALSE; + gboolean list_devices = FALSE; + gboolean fake = FALSE; + gboolean precalib = FALSE; + XYinfo pre_axis = {-1, -1, -1, -1}; + const char* pre_device = NULL; + unsigned thr_misclick = 15; + unsigned thr_doubleclick = 7; + + /* parse input */ + if (argc > 1) { + int i; + for (i=1; i!=argc; i++) { + /* Display help ? */ + if (strcmp("-h", argv[i]) == 0 || + strcmp("--help", argv[i]) == 0) { + fprintf(stderr, "xinput_calibrator, v%s\n\n", "0.0.0"); + usage(argv[0], thr_misclick); + exit(0); + } else + + /* Verbose output ? */ + if (strcmp("-v", argv[i]) == 0 || + strcmp("--verbose", argv[i]) == 0) { + verbose = TRUE; + } else + + /* Just list devices ? */ + if (strcmp("--list", argv[i]) == 0) { + list_devices = TRUE; + } else + + /* Select specific device ? */ + if (strcmp("--device", argv[i]) == 0) { + if (argc > i+1) + pre_device = argv[++i]; + else { + fprintf(stderr, "Error: --device needs a device name or id as argument; use --list to list the calibratable input devices.\n\n"); + usage(argv[0], thr_misclick); + exit(1); + } + } else + + /* Get pre-calibration ? */ + if (strcmp("--precalib", argv[i]) == 0) { + precalib = TRUE; + if (argc > i+1) + pre_axis.x_min = atoi(argv[++i]); + if (argc > i+1) + pre_axis.x_max = atoi(argv[++i]); + if (argc > i+1) + pre_axis.y_min = atoi(argv[++i]); + if (argc > i+1) + pre_axis.y_max = atoi(argv[++i]); + } else + + /* Get mis-click threshold ? */ + if (strcmp("--misclick", argv[i]) == 0) { + if (argc > i+1) + thr_misclick = atoi(argv[++i]); + else { + fprintf(stderr, "Error: --misclick needs a number (the pixel threshold) as argument. Set to 0 to disable mis-click detection.\n\n"); + usage(argv[0], thr_misclick); + exit(1); + } + } else + + /* Fake calibratable device ? */ + if (strcmp("--fake", argv[i]) == 0) { + fake = TRUE; + } + + /* unknown option */ + else { + fprintf(stderr, "Unknown option: %s\n\n", argv[i]); + usage(argv[0], thr_misclick); + exit(0); + } + } + } + + + /* Choose the device to calibrate */ + XID device_id = (XID) -1; + const char* device_name = NULL; + XYinfo device_axis = {-1, -1, -1, -1}; + if (fake) { + /* Fake a calibratable device */ + device_name = "Fake_device"; + device_axis.x_min=0; + device_axis.x_max=1000; + device_axis.y_min=0; + device_axis.y_max=1000; + + if (verbose) { + printf("DEBUG: Faking device: %s\n", device_name); + } + } else { + /* Find the right device */ + int nr_found = find_device(pre_device, verbose, list_devices, &device_id, &device_name, &device_axis); + + if (list_devices) { + /* printed the list in find_device */ + if (nr_found == 0) + printf("No calibratable devices found.\n"); + exit(0); + } + + if (nr_found == 0) { + if (pre_device == NULL) + fprintf (stderr, "Error: No calibratable devices found.\n"); + else + fprintf (stderr, "Error: Device \"%s\" not found; use --list to list the calibratable input devices.\n", pre_device); + exit(1); + + } else if (nr_found > 1) { + printf ("Warning: multiple calibratable devices found, calibrating last one (%s)\n\tuse --device to select another one.\n", device_name); + } + + if (verbose) { + printf("DEBUG: Selected device: %s\n", device_name); + } + } + + /* override min/max XY from command line ? */ + if (precalib) { + if (pre_axis.x_min != -1) + device_axis.x_min = pre_axis.x_min; + if (pre_axis.x_max != -1) + device_axis.x_max = pre_axis.x_max; + if (pre_axis.y_min != -1) + device_axis.y_min = pre_axis.y_min; + if (pre_axis.y_max != -1) + device_axis.y_max = pre_axis.y_max; + + if (verbose) { + printf("DEBUG: Setting precalibration: %lf, %lf, %lf, %lf\n", + device_axis.x_min, device_axis.x_max, + device_axis.y_min, device_axis.y_max); + } + } + + /* lastly, presume a standard Xorg driver (evtouch, mutouch, ...) */ + return CalibratorXorgPrint(device_name, &device_axis, + verbose, thr_misclick, thr_doubleclick); +} + +static gboolean output_xorgconfd(const XYinfo new_axis, int swap_xy, int new_swap_xy) +{ + const char* sysfs_name = "!!Name_Of_TouchScreen!!"; + + /* xorg.conf.d snippet */ + printf(" copy the snippet below into '/etc/X11/xorg.conf.d/99-calibration.conf'\n"); + printf("Section \"InputClass\"\n"); + printf(" Identifier \"calibration\"\n"); + printf(" MatchProduct \"%s\"\n", sysfs_name); + printf(" Option \"MinX\" \"%lf\"\n", new_axis.x_min); + printf(" Option \"MaxX\" \"%lf\"\n", new_axis.x_max); + printf(" Option \"MinY\" \"%lf\"\n", new_axis.y_min); + printf(" Option \"MaxY\" \"%lf\"\n", new_axis.y_max); + if (swap_xy != 0) + printf(" Option \"SwapXY\" \"%d\" # unless it was already set to 1\n", new_swap_xy); + printf("EndSection\n"); + + return TRUE; +} + +static gboolean finish_data(const XYinfo new_axis, int swap_xy) +{ + gboolean success = TRUE; + + /* we suppose the previous 'swap_xy' value was 0 */ + /* (unfortunately there is no way to verify this (yet)) */ + int new_swap_xy = swap_xy; + + printf("\n\n--> Making the calibration permanent <--\n"); + success &= output_xorgconfd(new_axis, swap_xy, new_swap_xy); + + return success; +} + +static void +calibration_finished_cb (CcCalibArea *area, + gpointer user_data) +{ + gboolean success; + XYinfo axis; + gboolean swap_xy; + + success = cc_calib_area_finish (area); + if (success) + { + cc_calib_area_get_axis (area, &axis, &swap_xy); + success = finish_data (axis, swap_xy); + } + else + fprintf(stderr, "Error: unable to apply or save configuration values\n"); + + g_main_loop_quit (mainloop); +} + +int main(int argc, char** argv) +{ + + struct Calib* calibrator = main_common(argc, argv); + CcCalibArea *calib_area; + + bindtextdomain (GETTEXT_PACKAGE, GNOMELOCALEDIR); + bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); + textdomain (GETTEXT_PACKAGE); + + gtk_init (); + + g_setenv ("G_MESSAGES_DEBUG", "all", TRUE); + + calib_area = cc_calib_area_new (NULL, + NULL, /* monitor */ + NULL, /* NULL to accept input from any device */ + calibration_finished_cb, + NULL, + calibrator->threshold_doubleclick, + calibrator->threshold_misclick); + + mainloop = g_main_loop_new (NULL, FALSE); + g_main_loop_run (mainloop); + + cc_calib_area_free (calib_area); + + free(calibrator); + + return 0; +} |