mirror of
https://gitlab.freedesktop.org/wayland/weston
synced 2024-09-06 18:05:39 +00:00
![Jussi Kukkonen](/assets/img/avatar_default.png)
Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com> Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
590 lines
13 KiB
C
590 lines
13 KiB
C
/*
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* Copyright © 2011 Benjamin Franzke
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* Copyright © 2010, 2013 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "config.h"
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <stdbool.h>
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#include <assert.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <signal.h>
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#include <time.h>
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#include <sys/poll.h>
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#include <float.h>
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#include <math.h>
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#include <wayland-client.h>
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#include "shared/os-compatibility.h"
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#include "shared/xalloc.h"
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#include "shared/zalloc.h"
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struct device {
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enum { KEYBOARD, POINTER } type;
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int start_time;
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int end_time;
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struct wl_list link;
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union {
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struct wl_keyboard *keyboard;
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struct wl_pointer *pointer;
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} p;
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};
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struct display {
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struct wl_display *display;
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struct wl_registry *registry;
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struct wl_compositor *compositor;
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struct wl_shell *shell;
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struct wl_seat *seat;
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struct wl_shm *shm;
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uint32_t formats;
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struct wl_list devices;
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};
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struct window {
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struct display *display;
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int width, height;
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struct wl_surface *surface;
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struct wl_shell_surface *shell_surface;
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};
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static void
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buffer_release(void *data, struct wl_buffer *buffer)
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{
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wl_buffer_destroy(buffer);
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}
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static const struct wl_buffer_listener buffer_listener = {
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buffer_release
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};
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static int
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attach_buffer(struct window *window, int width, int height)
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{
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struct wl_shm_pool *pool;
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struct wl_buffer *buffer;
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int fd, size, stride;
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stride = width * 4;
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size = stride * height;
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fd = os_create_anonymous_file(size);
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if (fd < 0) {
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fprintf(stderr, "creating a buffer file for %d B failed: %m\n",
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size);
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return -1;
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}
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pool = wl_shm_create_pool(window->display->shm, fd, size);
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buffer = wl_shm_pool_create_buffer(pool, 0,
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width, height,
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stride,
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WL_SHM_FORMAT_XRGB8888);
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wl_surface_attach(window->surface, buffer, 0, 0);
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wl_buffer_add_listener(buffer, &buffer_listener, buffer);
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wl_shm_pool_destroy(pool);
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close(fd);
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return 0;
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}
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static void
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handle_ping(void *data, struct wl_shell_surface *shell_surface,
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uint32_t serial)
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{
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wl_shell_surface_pong(shell_surface, serial);
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}
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static void
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handle_configure(void *data, struct wl_shell_surface *shell_surface,
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uint32_t edges, int32_t width, int32_t height)
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{
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}
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static void
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handle_popup_done(void *data, struct wl_shell_surface *shell_surface)
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{
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}
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static const struct wl_shell_surface_listener shell_surface_listener = {
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handle_ping,
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handle_configure,
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handle_popup_done
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};
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static struct window *
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create_window(struct display *display, int width, int height)
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{
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struct window *window;
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window = xzalloc(sizeof *window);
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window->display = display;
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window->width = width;
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window->height = height;
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window->surface = wl_compositor_create_surface(display->compositor);
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window->shell_surface = wl_shell_get_shell_surface(display->shell,
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window->surface);
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if (window->shell_surface)
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wl_shell_surface_add_listener(window->shell_surface,
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&shell_surface_listener, window);
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wl_shell_surface_set_title(window->shell_surface, "simple-shm");
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wl_shell_surface_set_toplevel(window->shell_surface);
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wl_surface_damage(window->surface, 0, 0, width, height);
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attach_buffer(window, width, height);
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wl_surface_commit(window->surface);
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return window;
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}
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static void
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destroy_window(struct window *window)
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{
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wl_shell_surface_destroy(window->shell_surface);
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wl_surface_destroy(window->surface);
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free(window);
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}
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static void
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shm_format(void *data, struct wl_shm *wl_shm, uint32_t format)
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{
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struct display *d = data;
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d->formats |= (1 << format);
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}
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struct wl_shm_listener shm_listener = {
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shm_format
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};
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static void
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registry_handle_global(void *data, struct wl_registry *registry,
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uint32_t id, const char *interface, uint32_t version)
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{
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struct display *d = data;
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if (strcmp(interface, "wl_compositor") == 0) {
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d->compositor =
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wl_registry_bind(registry,
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id, &wl_compositor_interface, 1);
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} else if (strcmp(interface, "wl_shell") == 0) {
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d->shell = wl_registry_bind(registry,
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id, &wl_shell_interface, 1);
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} else if (strcmp(interface, "wl_shm") == 0) {
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d->shm = wl_registry_bind(registry,
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id, &wl_shm_interface, 1);
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wl_shm_add_listener(d->shm, &shm_listener, d);
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} else if (strcmp(interface, "wl_seat") == 0 &&
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d->seat == NULL) {
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d->seat = wl_registry_bind(registry,
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id, &wl_seat_interface, 3);
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}
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}
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static void
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registry_handle_global_remove(void *data, struct wl_registry *registry,
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uint32_t name)
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{
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}
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static const struct wl_registry_listener registry_listener = {
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registry_handle_global,
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registry_handle_global_remove
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};
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static struct display *
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create_display(void)
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{
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struct display *display;
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display = xzalloc(sizeof *display);
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display->display = wl_display_connect(NULL);
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assert(display->display);
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display->formats = 0;
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display->registry = wl_display_get_registry(display->display);
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wl_registry_add_listener(display->registry,
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®istry_listener, display);
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wl_display_roundtrip(display->display);
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if (display->shm == NULL) {
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fprintf(stderr, "No wl_shm global\n");
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exit(1);
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}
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wl_display_roundtrip(display->display);
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if (!(display->formats & (1 << WL_SHM_FORMAT_XRGB8888))) {
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fprintf(stderr, "WL_SHM_FORMAT_XRGB32 not available\n");
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exit(1);
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}
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wl_list_init(&display->devices);
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return display;
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}
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static void
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pointer_handle_enter(void *data, struct wl_pointer *pointer,
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uint32_t serial, struct wl_surface *surface,
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wl_fixed_t sx_w, wl_fixed_t sy_w)
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{
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}
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static void
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pointer_handle_leave(void *data, struct wl_pointer *pointer,
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uint32_t serial, struct wl_surface *surface)
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{
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}
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static void
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pointer_handle_motion(void *data, struct wl_pointer *pointer,
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uint32_t time, wl_fixed_t sx_w, wl_fixed_t sy_w)
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{
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}
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static void
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pointer_handle_button(void *data, struct wl_pointer *pointer, uint32_t serial,
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uint32_t time, uint32_t button, uint32_t state_w)
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{
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}
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static void
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pointer_handle_axis(void *data, struct wl_pointer *pointer,
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uint32_t time, uint32_t axis, wl_fixed_t value)
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{
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}
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static const struct wl_pointer_listener pointer_listener = {
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pointer_handle_enter,
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pointer_handle_leave,
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pointer_handle_motion,
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pointer_handle_button,
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pointer_handle_axis,
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};
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static void
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keyboard_handle_keymap(void *data, struct wl_keyboard *keyboard,
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uint32_t format, int fd, uint32_t size)
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{
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}
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static void
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keyboard_handle_enter(void *data, struct wl_keyboard *keyboard,
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uint32_t serial, struct wl_surface *surface,
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struct wl_array *keys)
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{
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}
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static void
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keyboard_handle_leave(void *data, struct wl_keyboard *keyboard,
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uint32_t serial, struct wl_surface *surface)
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{
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}
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static void
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keyboard_handle_key(void *data, struct wl_keyboard *keyboard,
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uint32_t serial, uint32_t time, uint32_t key,
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uint32_t state_w)
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{
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}
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static void
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keyboard_handle_modifiers(void *data, struct wl_keyboard *keyboard,
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uint32_t serial, uint32_t mods_depressed,
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uint32_t mods_latched, uint32_t mods_locked,
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uint32_t group)
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{
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}
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static const struct wl_keyboard_listener keyboard_listener = {
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keyboard_handle_keymap,
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keyboard_handle_enter,
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keyboard_handle_leave,
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keyboard_handle_key,
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keyboard_handle_modifiers,
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};
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static void
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start_device(struct display *display, struct device *device)
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{
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if (display->seat == NULL)
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return;
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switch (device->type) {
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case KEYBOARD:
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if (device->p.keyboard == NULL) {
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device->p.keyboard =
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wl_seat_get_keyboard(display->seat);
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wl_keyboard_add_listener(device->p.keyboard,
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&keyboard_listener,
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NULL);
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}
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break;
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case POINTER:
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if (device->p.pointer == NULL) {
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device->p.pointer =
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wl_seat_get_pointer(display->seat);
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wl_pointer_add_listener(device->p.pointer,
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&pointer_listener,
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NULL);
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}
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break;
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}
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}
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static void
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destroy_device(struct device *device)
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{
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switch (device->type) {
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case KEYBOARD:
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if (device->p.keyboard)
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wl_keyboard_release(device->p.keyboard);
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break;
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case POINTER:
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if (device->p.pointer)
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wl_pointer_release(device->p.pointer);
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break;
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}
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wl_list_remove(&device->link);
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free(device);
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}
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static void
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destroy_devices(struct display *display)
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{
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struct device *device, *tmp;
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wl_list_for_each_safe(device, tmp, &display->devices, link)
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destroy_device(device);
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}
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static void
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destroy_display(struct display *display)
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{
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destroy_devices(display);
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if (display->shm)
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wl_shm_destroy(display->shm);
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if (display->shell)
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wl_shell_destroy(display->shell);
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if (display->seat)
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wl_seat_destroy(display->seat);
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if (display->compositor)
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wl_compositor_destroy(display->compositor);
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wl_registry_destroy(display->registry);
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wl_display_flush(display->display);
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wl_display_disconnect(display->display);
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free(display);
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}
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static int running = 1;
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static void
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signal_int(int signum)
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{
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running = 0;
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}
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static int
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create_device(struct display *display, const char *time_desc, int type)
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{
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int start_time;
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int end_time = -1;
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char *tail;
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struct device *device;
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if (time_desc == NULL) {
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fprintf(stderr, "missing time description\n");
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return -1;
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}
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errno = 0;
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start_time = strtoul(time_desc, &tail, 10);
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if (errno || tail == time_desc)
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goto error;
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if (*tail == ':') {
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time_desc = tail + 1;
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end_time = strtoul(time_desc, &tail, 10);
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if (errno || tail == time_desc || *tail != '\0')
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goto error;
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} else if (*tail != '\0') {
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goto error;
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}
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device = xzalloc(sizeof *device);
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device->type = type;
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device->start_time = start_time;
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device->end_time = end_time;
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wl_list_insert(&display->devices, &device->link);
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return 0;
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error:
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fprintf(stderr, "invalid time description\n");
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return -1;
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}
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static struct timespec begin_time;
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static void
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reset_timer(void)
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{
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clock_gettime(CLOCK_MONOTONIC, &begin_time);
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}
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static double
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read_timer(void)
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{
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struct timespec t;
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clock_gettime(CLOCK_MONOTONIC, &t);
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return (double)(t.tv_sec - begin_time.tv_sec) +
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1e-9 * (t.tv_nsec - begin_time.tv_nsec);
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}
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static void
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main_loop(struct display *display)
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{
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reset_timer();
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while (running) {
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struct device *device, *tmp;
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struct pollfd fds[1];
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double sleep_time = DBL_MAX;
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double now;
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if (wl_display_dispatch_pending(display->display) == -1)
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break;
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if (wl_display_flush(display->display) == -1)
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break;
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now = read_timer();
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wl_list_for_each(device, &display->devices, link) {
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double next_time = device->start_time - now;
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if (next_time < 0.0) {
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sleep_time = 0.0;
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break;
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} else if (next_time < sleep_time) {
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sleep_time = next_time;
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}
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next_time = device->end_time - now;
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if (next_time < 0.0) {
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sleep_time = 0.0;
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break;
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} else if (next_time < sleep_time) {
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sleep_time = next_time;
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}
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}
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fds[0].fd = wl_display_get_fd(display->display);
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fds[0].events = POLLIN;
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fds[0].revents = 0;
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poll(fds,
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sizeof fds / sizeof fds[0],
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sleep_time == DBL_MAX ? -1 : ceil(sleep_time * 1000.0));
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if (fds[0].revents &&
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wl_display_dispatch(display->display) == -1)
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break;
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now = read_timer();
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wl_list_for_each_safe(device, tmp, &display->devices, link) {
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if (device->start_time <= now)
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start_device(display, device);
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if (device->end_time >= 0 && device->end_time <= now)
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destroy_device(device);
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}
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}
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}
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int
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main(int argc, char **argv)
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{
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struct sigaction sigint;
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struct display *display;
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struct window *window;
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int i;
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display = create_display();
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window = create_window(display, 250, 250);
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for (i = 1; i < argc; i++) {
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if (!strncmp(argv[i], "-p", 2)) {
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char *arg;
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if (argv[i][2]) {
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arg = argv[i] + 2;
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} else {
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arg = argv[i + 1];
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i++;
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}
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if (create_device(display, arg, POINTER) == -1)
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return 1;
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} else if (!strncmp(argv[i], "-k", 2)) {
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char *arg;
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if (argv[i][2]) {
|
|
arg = argv[i] + 2;
|
|
} else {
|
|
arg = argv[i + 1];
|
|
i++;
|
|
}
|
|
if (create_device(display, arg, KEYBOARD) == -1)
|
|
return 1;
|
|
} else {
|
|
fprintf(stderr, "unknown argument %s\n", argv[i]);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
sigint.sa_handler = signal_int;
|
|
sigemptyset(&sigint.sa_mask);
|
|
sigint.sa_flags = SA_RESETHAND;
|
|
sigaction(SIGINT, &sigint, NULL);
|
|
|
|
main_loop(display);
|
|
|
|
fprintf(stderr, "multi-resource exiting\n");
|
|
destroy_window(window);
|
|
destroy_display(display);
|
|
|
|
return 0;
|
|
}
|