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/* Real Xorg driver -> XI2 -> YASL queue -> the portable example -> CPU pixels. */
#define main tablet_example_main
#include "../../examples/tablet.c"
#undef main
#include <yasl/native.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/extensions/XInput2.h>
#include <assert.h>
#include <errno.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include "inputtest-protocol.h"
static void send_all(int fd, const void *message, size_t n)
{
const char *p = message;
while (n) {
ssize_t sent = write(fd, p, n);
if (sent < 0 && errno == EINTR) continue;
assert(sent > 0);
p += sent;
n -= (size_t)sent;
}
}
static void receive_all(int fd, void *message, size_t n)
{
char *p = message;
while (n) {
ssize_t got = read(fd, p, n);
if (got < 0 && errno == EINTR) continue;
assert(got > 0);
p += got;
n -= (size_t)got;
}
}
static int connect_tool(const char *path)
{
int fd = socket(AF_UNIX, SOCK_STREAM, 0);
assert(fd >= 0);
struct sockaddr_un address = {.sun_family = AF_UNIX};
assert(strlen(path) < sizeof(address.sun_path));
strcpy(address.sun_path, path);
assert(connect(fd, (struct sockaddr *)&address, sizeof(address)) == 0);
xf86ITEventClientVersion version = {{sizeof(version), XF86IT_EVENT_CLIENT_VERSION}, 1, 1};
send_all(fd, &version, sizeof(version));
xf86ITResponseServerVersion response;
receive_all(fd, &response, sizeof(response));
assert(response.header.type == XF86IT_RESPONSE_SERVER_VERSION);
assert(response.header.length == sizeof(response) && response.major == 1 && response.minor >= 1);
return fd;
}
static void pump(int fd, struct yasl_display *display, struct yasl_surface *surface, struct app *app)
{
xf86ITEventWaitForSync sync = {{sizeof(sync), XF86IT_EVENT_WAIT_FOR_SYNC}};
send_all(fd, &sync, sizeof(sync));
xf86ITResponseHeader response;
receive_all(fd, &response, sizeof(response));
assert(response.type == XF86IT_RESPONSE_SYNC_FINISHED && response.length == sizeof(response));
/* The driver acknowledgment guarantees input processing has finished.
* Round-trip on YASL's X connection before draining its event queue. */
XSync(yasl_display_get_native_handle(display), False);
assert(yasl_display_dispatch(display, 0) == 0);
struct yasl_input_event event;
while (yasl_surface_input_poll(surface, &event)) {
input(app, &event);
yasl_surface_schedule_redraw(surface);
}
yasl_display_flush(display);
assert(!app->failed);
}
static uint32_t canvas_pixel(struct app *app, int x, int y)
{
return app->canvas[(size_t)y * app->geometry.size.x + x];
}
static void set_eraser_property(Display *display)
{
int count = 0;
XIDeviceInfo *devices = XIQueryDevice(display, XIAllDevices, &count);
assert(devices);
bool found = false;
for (int i = 0; i < count; i++) {
/* The name deliberately doesn't contain "eraser": exercise the
* driver's tool property, independently of the name fallback. */
if (strcmp(devices[i].name, "YASL Test Reverse Tool")) continue;
Atom property = XInternAtom(display, "Wacom Tool Type", False);
uint32_t eraser = (uint32_t)XInternAtom(display, "ERASER", False);
XIChangeProperty(display, devices[i].deviceid, property, XA_ATOM, 32,
PropModeReplace, (unsigned char *)&eraser, 1);
found = true;
}
XIFreeDeviceInfo(devices);
assert(found);
XSync(display, False);
}
int main(int argc, char **argv)
{
assert(argc == 3); /* pen socket, eraser socket */
struct app app = {.running = true, .tablet_supported = true, .backend = YASL_BACKEND_X11};
struct yasl_display_spec ds = {.backend = YASL_BACKEND_X11};
struct yasl_display *display = yasl_display_open(NULL, &ds);
assert(display && (yasl_display_caps(display) & YASL_CAP_TABLET));
struct yasl_surface_spec ss = {.title = "YASL native pressure test", .size = {500, 400}};
struct yasl_surface *surface = yasl_surface_create_toplevel(display, &ss);
assert(surface);
struct yasl_surface_cbs cbs = {.draw = draw, .configure = configure};
yasl_surface_set_callbacks(surface, &cbs, &app);
yasl_surface_schedule_redraw(surface);
Display *x = yasl_display_get_native_handle(display);
Window window = (Window)(uintptr_t)yasl_surface_get_native_handle(surface);
XMoveWindow(x, window, 0, 0);
XSetInputFocus(x, window, RevertToParent, CurrentTime);
XSync(x, False);
assert(yasl_display_dispatch(display, 0) == 0);
yasl_display_flush(display);
set_eraser_property(x);
int pen_fd = connect_tool(argv[1]), eraser_fd = connect_tool(argv[2]);
xf86ITEventMotion motion = {.header = {sizeof(motion), XF86IT_EVENT_MOTION}, .is_absolute = 1};
motion.valuators.mask[0] = (1 << 0) | (1 << 1) | (1 << 4);
motion.valuators.valuators[0] = 150.0 * 65535 / (DisplayWidth(x, DefaultScreen(x)) - 1);
motion.valuators.valuators[1] = 200.0 * 65535 / (DisplayHeight(x, DefaultScreen(x)) - 1);
xf86ITEventProximity proximity = {.header = {sizeof(proximity), XF86IT_EVENT_PROXIMITY},
.is_prox_in = 1, .valuators = motion.valuators};
send_all(pen_fd, &proximity, sizeof(proximity));
send_all(pen_fd, &motion, sizeof(motion));
pump(pen_fd, display, surface, &app);
assert(app.visible && !app.down && app.pointer.device == YASL_PTR_DEV_PEN);
assert(app.pointer.pos.x == 150 && app.pointer.pos.y == 200);
assert(canvas_pixel(&app, 150, 200) == PAPER);
xf86ITEventButton button = {.header = {sizeof(button), XF86IT_EVENT_BUTTON},
.is_absolute = 1, .button = 1, .is_press = 1, .valuators = motion.valuators};
button.valuators.valuators[4] = 250; /* Driver pressure range is 0..1000. */
send_all(pen_fd, &button, sizeof(button));
pump(pen_fd, display, surface, &app);
assert(app.down && app.pointer.pen.pressure == 16384);
assert(canvas_pixel(&app, 150, 200) == INK && canvas_pixel(&app, 170, 200) == PAPER);
motion.valuators.mask[0] = 1 << 4; /* No position change. */
motion.valuators.valuators[4] = 1000;
send_all(pen_fd, &motion, sizeof(motion));
pump(pen_fd, display, surface, &app);
assert(app.down && app.pointer.pen.pressure == 65535);
assert(canvas_pixel(&app, 170, 200) == INK);
/* Check the actual window's pixels too, after the example presents. */
XImage *image = XGetImage(x, window, 170, 200, 1, 1, AllPlanes, ZPixmap);
assert(image && (XGetPixel(image, 0, 0) & 0xffffff) == (INK & 0xffffff));
XDestroyImage(image);
button.is_press = 0;
button.valuators.mask[0] = 0; /* Release omits all valuators. */
send_all(pen_fd, &button, sizeof(button));
pump(pen_fd, display, surface, &app);
assert(!app.down && !app.pointer.pen.pressure);
send_all(eraser_fd, &proximity, sizeof(proximity));
button.is_press = 1;
button.valuators = proximity.valuators;
button.valuators.valuators[4] = 1000;
send_all(eraser_fd, &button, sizeof(button));
pump(eraser_fd, display, surface, &app);
assert(app.down && app.pointer.device == YASL_PTR_DEV_ERASER && app.pointer.pen.pressure == 65535);
assert(canvas_pixel(&app, 150, 200) == PAPER && canvas_pixel(&app, 170, 200) == PAPER);
button.is_press = 0;
send_all(eraser_fd, &button, sizeof(button));
pump(eraser_fd, display, surface, &app);
assert(!app.down && !app.pointer.pen.pressure);
close(pen_fd);
close(eraser_fd);
free(app.canvas);
yasl_surface_destroy(surface);
yasl_display_close(display);
puts("Native Xorg pen pressure, stationary pressure, release, and eraser drawing passed.");
return 0;
}
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