3d5d9476e3
The main idea is to make libweston users use the form #include <libweston/libweston.h> instead of the plain #include <compositor.h> which is prone to name conflicts. This is reflected both in the installed files, and the internal header search paths so that Weston would use the exact same form as an external project using libweston would. The public headers are moved under a new top-level directory include/ to make them clearly stand out as special (public API). Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
717 lines
20 KiB
C
717 lines
20 KiB
C
/*
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* Copyright 2017-2018 Collabora, Ltd.
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* Copyright 2017-2018 General Electric Company
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "config.h"
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#include <string.h>
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#include <wayland-server.h>
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#include "shared/helpers.h"
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#include "shared/string-helpers.h"
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#include "shared/zalloc.h"
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#include "shared/timespec-util.h"
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#include <libweston/libweston.h>
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#include "weston-touch-calibration-server-protocol.h"
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struct weston_touch_calibrator {
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struct wl_resource *resource;
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struct weston_compositor *compositor;
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struct weston_surface *surface;
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struct wl_listener surface_destroy_listener;
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struct wl_listener surface_commit_listener;
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struct weston_touch_device *device;
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struct wl_listener device_destroy_listener;
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struct weston_output *output;
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struct wl_listener output_destroy_listener;
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struct weston_view *view;
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/** The calibration procedure has been cancelled. */
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bool calibration_cancelled;
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/** The current touch sequence has been cancelled. */
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bool touch_cancelled;
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};
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static struct weston_touch_calibrator *
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calibrator_from_device(struct weston_touch_device *device)
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{
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return device->aggregate->seat->compositor->touch_calibrator;
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}
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static uint32_t
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wire_uint_from_double(double c)
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{
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assert(c >= 0.0);
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assert(c <= 1.0);
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return round(c * 0xffffffff);
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}
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static bool
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normalized_is_valid(const struct weston_point2d_device_normalized *p)
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{
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return p->x >= 0.0 && p->x <= 1.0 &&
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p->y >= 0.0 && p->y <= 1.0;
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}
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WL_EXPORT void
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notify_touch_calibrator(struct weston_touch_device *device,
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const struct timespec *time, int32_t slot,
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const struct weston_point2d_device_normalized *norm,
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int touch_type)
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{
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struct weston_touch_calibrator *calibrator;
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struct wl_resource *res;
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uint32_t msecs;
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uint32_t x = 0;
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uint32_t y = 0;
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calibrator = calibrator_from_device(device);
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if (!calibrator)
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return;
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res = calibrator->resource;
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/* Ignore any touch events coming from another device */
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if (device != calibrator->device) {
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if (touch_type == WL_TOUCH_DOWN)
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weston_touch_calibrator_send_invalid_touch(res);
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return;
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}
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/* Ignore all events if we have sent 'cancel' event until all
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* touches (on the seat) are up.
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*/
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if (calibrator->touch_cancelled) {
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if (calibrator->device->aggregate->num_tp == 0) {
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assert(touch_type == WL_TOUCH_UP);
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calibrator->touch_cancelled = false;
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}
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return;
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}
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msecs = timespec_to_msec(time);
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if (touch_type != WL_TOUCH_UP) {
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if (normalized_is_valid(norm)) {
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x = wire_uint_from_double(norm->x);
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y = wire_uint_from_double(norm->y);
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} else {
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/* Coordinates are out of bounds */
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if (touch_type == WL_TOUCH_MOTION) {
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weston_touch_calibrator_send_cancel(res);
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calibrator->touch_cancelled = true;
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}
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weston_touch_calibrator_send_invalid_touch(res);
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return;
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}
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}
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switch (touch_type) {
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case WL_TOUCH_UP:
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weston_touch_calibrator_send_up(res, msecs, slot);
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break;
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case WL_TOUCH_DOWN:
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weston_touch_calibrator_send_down(res, msecs, slot, x, y);
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break;
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case WL_TOUCH_MOTION:
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weston_touch_calibrator_send_motion(res, msecs, slot, x, y);
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break;
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default:
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return;
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}
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}
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WL_EXPORT void
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notify_touch_calibrator_frame(struct weston_touch_device *device)
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{
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struct weston_touch_calibrator *calibrator;
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calibrator = calibrator_from_device(device);
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if (!calibrator)
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return;
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weston_touch_calibrator_send_frame(calibrator->resource);
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}
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WL_EXPORT void
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notify_touch_calibrator_cancel(struct weston_touch_device *device)
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{
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struct weston_touch_calibrator *calibrator;
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calibrator = calibrator_from_device(device);
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if (!calibrator)
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return;
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weston_touch_calibrator_send_cancel(calibrator->resource);
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}
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static void
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map_calibrator(struct weston_touch_calibrator *calibrator)
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{
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struct weston_compositor *c = calibrator->compositor;
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struct weston_touch_device *device = calibrator->device;
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static const struct weston_touch_device_matrix identity = {
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.m = { 1, 0, 0, 0, 1, 0}
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};
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assert(!calibrator->view);
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assert(calibrator->output);
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assert(calibrator->surface);
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assert(calibrator->surface->resource);
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calibrator->view = weston_view_create(calibrator->surface);
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if (!calibrator->view) {
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wl_resource_post_no_memory(calibrator->surface->resource);
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return;
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}
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weston_layer_entry_insert(&c->calibrator_layer.view_list,
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&calibrator->view->layer_link);
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weston_view_set_position(calibrator->view,
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calibrator->output->x,
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calibrator->output->y);
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calibrator->view->output = calibrator->surface->output;
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calibrator->view->is_mapped = true;
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calibrator->surface->output = calibrator->output;
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calibrator->surface->is_mapped = true;
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weston_output_schedule_repaint(calibrator->output);
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device->ops->get_calibration(device, &device->saved_calibration);
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device->ops->set_calibration(device, &identity);
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}
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static void
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unmap_calibrator(struct weston_touch_calibrator *calibrator)
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{
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struct weston_touch_device *device = calibrator->device;
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wl_list_remove(&calibrator->surface_commit_listener.link);
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wl_list_init(&calibrator->surface_commit_listener.link);
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if (!calibrator->view)
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return;
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weston_view_destroy(calibrator->view);
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calibrator->view = NULL;
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weston_surface_unmap(calibrator->surface);
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/* Reload saved calibration */
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if (device)
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device->ops->set_calibration(device,
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&device->saved_calibration);
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}
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void
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touch_calibrator_mode_changed(struct weston_compositor *compositor)
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{
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struct weston_touch_calibrator *calibrator;
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calibrator = compositor->touch_calibrator;
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if (!calibrator)
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return;
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if (calibrator->calibration_cancelled)
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return;
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if (compositor->touch_mode == WESTON_TOUCH_MODE_CALIB)
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map_calibrator(calibrator);
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}
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static void
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touch_calibrator_surface_committed(struct wl_listener *listener, void *data)
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{
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struct weston_touch_calibrator *calibrator =
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container_of(listener, struct weston_touch_calibrator,
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surface_commit_listener);
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struct weston_surface *surface = calibrator->surface;
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wl_list_remove(&calibrator->surface_commit_listener.link);
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wl_list_init(&calibrator->surface_commit_listener.link);
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if (surface->width != calibrator->output->width ||
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surface->height != calibrator->output->height) {
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wl_resource_post_error(calibrator->resource,
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WESTON_TOUCH_CALIBRATOR_ERROR_BAD_SIZE,
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"calibrator surface size does not match");
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return;
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}
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weston_compositor_set_touch_mode_calib(calibrator->compositor);
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/* results in call to touch_calibrator_mode_changed() */
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}
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static void
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touch_calibrator_convert(struct wl_client *client,
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struct wl_resource *resource,
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int32_t x,
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int32_t y,
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uint32_t coordinate_id)
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{
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struct weston_touch_calibrator *calibrator;
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struct wl_resource *coordinate_resource;
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struct weston_output *output;
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struct weston_surface *surface;
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uint32_t version;
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struct weston_vector p = { { 0.0, 0.0, 0.0, 1.0 } };
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struct weston_point2d_device_normalized norm;
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version = wl_resource_get_version(resource);
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calibrator = wl_resource_get_user_data(resource);
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surface = calibrator->surface;
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output = calibrator->output;
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coordinate_resource =
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wl_resource_create(client, &weston_touch_coordinate_interface,
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version, coordinate_id);
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if (!coordinate_resource) {
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wl_client_post_no_memory(client);
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return;
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}
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if (calibrator->calibration_cancelled) {
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weston_touch_coordinate_send_result(coordinate_resource, 0, 0);
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wl_resource_destroy(coordinate_resource);
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return;
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}
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if (!surface || !surface->is_mapped) {
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wl_resource_post_error(resource,
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WESTON_TOUCH_CALIBRATOR_ERROR_NOT_MAPPED,
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"calibrator surface is not mapped");
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return;
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}
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assert(calibrator->view);
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assert(output);
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if (x < 0 || y < 0 || x >= surface->width || y >= surface->height) {
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wl_resource_post_error(resource,
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WESTON_TOUCH_CALIBRATOR_ERROR_BAD_COORDINATES,
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"convert(%d, %d) input is out of bounds",
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x, y);
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return;
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}
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/* Convert from surface-local coordinates into global, from global
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* into output-raw, do perspective division and normalize.
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*/
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weston_view_to_global_float(calibrator->view, x, y, &p.f[0], &p.f[1]);
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weston_matrix_transform(&output->matrix, &p);
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norm.x = p.f[0] / (p.f[3] * output->current_mode->width);
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norm.y = p.f[1] / (p.f[3] * output->current_mode->height);
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if (!normalized_is_valid(&norm)) {
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wl_resource_post_error(resource,
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WESTON_TOUCH_CALIBRATOR_ERROR_BAD_COORDINATES,
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"convert(%d, %d) output is out of bounds",
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x, y);
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return;
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}
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weston_touch_coordinate_send_result(coordinate_resource,
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wire_uint_from_double(norm.x),
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wire_uint_from_double(norm.y));
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wl_resource_destroy(coordinate_resource);
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}
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static void
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destroy_touch_calibrator(struct wl_resource *resource)
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{
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struct weston_touch_calibrator *calibrator;
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calibrator = wl_resource_get_user_data(resource);
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calibrator->compositor->touch_calibrator = NULL;
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weston_compositor_set_touch_mode_normal(calibrator->compositor);
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if (calibrator->surface) {
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unmap_calibrator(calibrator);
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weston_surface_set_role(calibrator->surface, NULL,
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calibrator->surface->resource, 0);
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wl_list_remove(&calibrator->surface_destroy_listener.link);
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wl_list_remove(&calibrator->surface_commit_listener.link);
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}
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if (calibrator->device)
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wl_list_remove(&calibrator->device_destroy_listener.link);
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if (calibrator->output)
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wl_list_remove(&calibrator->output_destroy_listener.link);
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free(calibrator);
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}
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static void
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touch_calibrator_destroy(struct wl_client *client,
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struct wl_resource *resource)
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{
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wl_resource_destroy(resource);
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}
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static const struct weston_touch_calibrator_interface
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touch_calibrator_implementation = {
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touch_calibrator_destroy,
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touch_calibrator_convert
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};
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static void
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touch_calibrator_cancel_calibration(struct weston_touch_calibrator *calibrator)
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{
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weston_touch_calibrator_send_cancel_calibration(calibrator->resource);
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calibrator->calibration_cancelled = true;
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if (calibrator->surface)
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unmap_calibrator(calibrator);
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}
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static void
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touch_calibrator_output_destroyed(struct wl_listener *listener, void *data)
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{
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struct weston_touch_calibrator *calibrator =
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container_of(listener, struct weston_touch_calibrator,
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output_destroy_listener);
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assert(calibrator->output == data);
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calibrator->output = NULL;
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touch_calibrator_cancel_calibration(calibrator);
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}
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static void
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touch_calibrator_device_destroyed(struct wl_listener *listener, void *data)
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{
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struct weston_touch_calibrator *calibrator =
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container_of(listener, struct weston_touch_calibrator,
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device_destroy_listener);
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assert(calibrator->device == data);
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calibrator->device = NULL;
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touch_calibrator_cancel_calibration(calibrator);
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}
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static void
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touch_calibrator_surface_destroyed(struct wl_listener *listener, void *data)
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{
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struct weston_touch_calibrator *calibrator =
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container_of(listener, struct weston_touch_calibrator,
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surface_destroy_listener);
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assert(calibrator->surface->resource == data);
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unmap_calibrator(calibrator);
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calibrator->surface = NULL;
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}
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static void
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touch_calibration_destroy(struct wl_client *client,
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struct wl_resource *resource)
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{
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wl_resource_destroy(resource);
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}
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static struct weston_touch_device *
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weston_compositor_find_touch_device_by_syspath(
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struct weston_compositor *compositor,
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const char *syspath)
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{
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struct weston_seat *seat;
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struct weston_touch *touch;
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struct weston_touch_device *device;
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if (!syspath)
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return NULL;
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wl_list_for_each(seat, &compositor->seat_list, link) {
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touch = weston_seat_get_touch(seat);
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if (!touch)
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continue;
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wl_list_for_each(device, &touch->device_list, link) {
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if (strcmp(device->syspath, syspath) == 0)
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return device;
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}
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}
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return NULL;
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}
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static void
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touch_calibration_create_calibrator(
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struct wl_client *client,
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struct wl_resource *touch_calibration_resource,
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struct wl_resource *surface_resource,
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const char *syspath,
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uint32_t calibrator_id)
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{
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struct weston_compositor *compositor;
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struct weston_touch_calibrator *calibrator;
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struct weston_touch_device *device;
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struct weston_output *output = NULL;
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struct weston_surface *surface;
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uint32_t version;
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int ret;
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version = wl_resource_get_version(touch_calibration_resource);
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compositor = wl_resource_get_user_data(touch_calibration_resource);
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if (compositor->touch_calibrator != NULL) {
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wl_resource_post_error(touch_calibration_resource,
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WESTON_TOUCH_CALIBRATION_ERROR_ALREADY_EXISTS,
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"a calibrator has already been created");
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return;
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}
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calibrator = zalloc(sizeof *calibrator);
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if (!calibrator) {
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wl_client_post_no_memory(client);
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return;
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}
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calibrator->compositor = compositor;
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calibrator->resource = wl_resource_create(client,
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&weston_touch_calibrator_interface,
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version, calibrator_id);
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if (!calibrator->resource) {
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wl_client_post_no_memory(client);
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goto err_dealloc;
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}
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surface = wl_resource_get_user_data(surface_resource);
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assert(surface);
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ret = weston_surface_set_role(surface, "weston_touch_calibrator",
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touch_calibration_resource,
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WESTON_TOUCH_CALIBRATION_ERROR_INVALID_SURFACE);
|
|
if (ret < 0)
|
|
goto err_destroy_resource;
|
|
|
|
calibrator->surface_destroy_listener.notify =
|
|
touch_calibrator_surface_destroyed;
|
|
wl_resource_add_destroy_listener(surface->resource,
|
|
&calibrator->surface_destroy_listener);
|
|
calibrator->surface = surface;
|
|
|
|
calibrator->surface_commit_listener.notify =
|
|
touch_calibrator_surface_committed;
|
|
wl_signal_add(&surface->commit_signal,
|
|
&calibrator->surface_commit_listener);
|
|
|
|
device = weston_compositor_find_touch_device_by_syspath(compositor,
|
|
syspath);
|
|
if (device) {
|
|
output = device->ops->get_output(device);
|
|
if (weston_touch_device_can_calibrate(device) && output)
|
|
calibrator->device = device;
|
|
}
|
|
|
|
if (!calibrator->device) {
|
|
wl_resource_post_error(touch_calibration_resource,
|
|
WESTON_TOUCH_CALIBRATION_ERROR_INVALID_DEVICE,
|
|
"the given touch device '%s' is not valid",
|
|
syspath ?: "");
|
|
goto err_unlink_surface;
|
|
}
|
|
|
|
calibrator->device_destroy_listener.notify =
|
|
touch_calibrator_device_destroyed;
|
|
wl_signal_add(&calibrator->device->destroy_signal,
|
|
&calibrator->device_destroy_listener);
|
|
|
|
wl_resource_set_implementation(calibrator->resource,
|
|
&touch_calibrator_implementation,
|
|
calibrator, destroy_touch_calibrator);
|
|
|
|
assert(output);
|
|
calibrator->output_destroy_listener.notify =
|
|
touch_calibrator_output_destroyed;
|
|
wl_signal_add(&output->destroy_signal,
|
|
&calibrator->output_destroy_listener);
|
|
calibrator->output = output;
|
|
|
|
weston_touch_calibrator_send_configure(calibrator->resource,
|
|
output->width,
|
|
output->height);
|
|
|
|
compositor->touch_calibrator = calibrator;
|
|
|
|
return;
|
|
|
|
err_unlink_surface:
|
|
wl_list_remove(&calibrator->surface_commit_listener.link);
|
|
wl_list_remove(&calibrator->surface_destroy_listener.link);
|
|
|
|
err_destroy_resource:
|
|
wl_resource_destroy(calibrator->resource);
|
|
|
|
err_dealloc:
|
|
free(calibrator);
|
|
}
|
|
|
|
static void
|
|
touch_calibration_save(struct wl_client *client,
|
|
struct wl_resource *touch_calibration_resource,
|
|
const char *device_name,
|
|
struct wl_array *matrix_data)
|
|
{
|
|
struct weston_touch_device *device;
|
|
struct weston_compositor *compositor;
|
|
struct weston_touch_device_matrix calibration;
|
|
struct weston_touch_calibrator *calibrator;
|
|
int i = 0;
|
|
float *c;
|
|
|
|
compositor = wl_resource_get_user_data(touch_calibration_resource);
|
|
|
|
device = weston_compositor_find_touch_device_by_syspath(compositor,
|
|
device_name);
|
|
if (!device || !weston_touch_device_can_calibrate(device)) {
|
|
wl_resource_post_error(touch_calibration_resource,
|
|
WESTON_TOUCH_CALIBRATION_ERROR_INVALID_DEVICE,
|
|
"the given device is not valid");
|
|
return;
|
|
}
|
|
|
|
wl_array_for_each(c, matrix_data) {
|
|
calibration.m[i++] = *c;
|
|
}
|
|
|
|
/* If calibration can't be saved, don't set it as current */
|
|
if (compositor->touch_calibration_save &&
|
|
compositor->touch_calibration_save(compositor, device,
|
|
&calibration) < 0)
|
|
return;
|
|
|
|
/* If calibrator is still mapped, the compositor will use
|
|
* saved_calibration when going back to normal touch handling.
|
|
* Continuing calibrating after save request is undefined. */
|
|
calibrator = compositor->touch_calibrator;
|
|
if (calibrator &&
|
|
calibrator->surface &&
|
|
weston_surface_is_mapped(calibrator->surface))
|
|
device->saved_calibration = calibration;
|
|
else
|
|
device->ops->set_calibration(device, &calibration);
|
|
}
|
|
|
|
static const struct weston_touch_calibration_interface
|
|
touch_calibration_implementation = {
|
|
touch_calibration_destroy,
|
|
touch_calibration_create_calibrator,
|
|
touch_calibration_save
|
|
};
|
|
|
|
static void
|
|
bind_touch_calibration(struct wl_client *client,
|
|
void *data, uint32_t version, uint32_t id)
|
|
{
|
|
struct weston_compositor *compositor = data;
|
|
struct wl_resource *resource;
|
|
struct weston_touch_device *device;
|
|
struct weston_seat *seat;
|
|
struct weston_touch *touch;
|
|
const char *name;
|
|
|
|
resource = wl_resource_create(client,
|
|
&weston_touch_calibration_interface,
|
|
version, id);
|
|
if (resource == NULL) {
|
|
wl_client_post_no_memory(client);
|
|
return;
|
|
}
|
|
|
|
wl_resource_set_implementation(resource,
|
|
&touch_calibration_implementation,
|
|
compositor, NULL);
|
|
|
|
wl_list_for_each(seat, &compositor->seat_list, link) {
|
|
touch = weston_seat_get_touch(seat);
|
|
if (!touch)
|
|
continue;
|
|
|
|
wl_list_for_each(device, &touch->device_list, link) {
|
|
if (!weston_touch_device_can_calibrate(device))
|
|
continue;
|
|
|
|
name = device->ops->get_calibration_head_name(device);
|
|
if (!name)
|
|
continue;
|
|
|
|
weston_touch_calibration_send_touch_device(resource,
|
|
device->syspath, name);
|
|
}
|
|
}
|
|
}
|
|
|
|
/** Advertise touch_calibration support
|
|
*
|
|
* \param compositor The compositor to init for.
|
|
* \param save The callback function for saving a new calibration, or NULL.
|
|
* \return Zero on success, -1 on failure or if already enabled.
|
|
*
|
|
* Calling this initializes the weston_touch_calibration protocol support,
|
|
* so that the interface will be advertised to clients. It is recommended
|
|
* to use some mechanism, e.g. wl_display_set_global_filter(), to restrict
|
|
* access to the interface.
|
|
*
|
|
* There is no way to disable this once enabled.
|
|
*
|
|
* If the save callback is NULL, a new calibration provided by a client will
|
|
* always be accepted. If the save callback is not NULL, it must return
|
|
* success for the new calibration to be accepted.
|
|
*/
|
|
WL_EXPORT int
|
|
weston_compositor_enable_touch_calibrator(struct weston_compositor *compositor,
|
|
weston_touch_calibration_save_func save)
|
|
{
|
|
if (compositor->touch_calibration)
|
|
return -1;
|
|
|
|
compositor->touch_calibration = wl_global_create(compositor->wl_display,
|
|
&weston_touch_calibration_interface, 1,
|
|
compositor, bind_touch_calibration);
|
|
if (!compositor->touch_calibration)
|
|
return -1;
|
|
|
|
compositor->touch_calibration_save = save;
|
|
weston_layer_init(&compositor->calibrator_layer, compositor);
|
|
|
|
/* needs to be stacked above everything except lock screen and cursor,
|
|
* otherwise the position value is arbitrary */
|
|
weston_layer_set_position(&compositor->calibrator_layer,
|
|
WESTON_LAYER_POSITION_TOP_UI + 120);
|
|
|
|
return 0;
|
|
}
|