Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2011 Benjamin Franzke |
| 3 | * Copyright © 2010 Intel Corporation |
| 4 | * |
| 5 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 6 | * documentation for any purpose is hereby granted without fee, provided that |
| 7 | * the above copyright notice appear in all copies and that both that copyright |
| 8 | * notice and this permission notice appear in supporting documentation, and |
| 9 | * that the name of the copyright holders not be used in advertising or |
| 10 | * publicity pertaining to distribution of the software without specific, |
| 11 | * written prior permission. The copyright holders make no representations |
| 12 | * about the suitability of this software for any purpose. It is provided "as |
| 13 | * is" without express or implied warranty. |
| 14 | * |
| 15 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 16 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 17 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 18 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 19 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 20 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| 21 | * OF THIS SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | #include <stdio.h> |
| 25 | #include <stdlib.h> |
| 26 | #include <string.h> |
| 27 | #include <stdbool.h> |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 28 | #include <assert.h> |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 29 | #include <unistd.h> |
| 30 | #include <sys/mman.h> |
Pekka Paalanen | 88e60fc | 2011-12-13 12:09:09 +0200 | [diff] [blame^] | 31 | #include <signal.h> |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 32 | |
| 33 | #include <wayland-client.h> |
| 34 | #include <wayland-egl.h> |
| 35 | |
| 36 | struct display { |
| 37 | struct wl_display *display; |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 38 | struct wl_compositor *compositor; |
| 39 | struct wl_shell *shell; |
| 40 | struct wl_shm *shm; |
Kristian Høgsberg | a3cdf59 | 2011-11-17 10:27:17 -0500 | [diff] [blame] | 41 | uint32_t formats; |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 42 | uint32_t mask; |
| 43 | }; |
| 44 | |
| 45 | struct window { |
| 46 | struct display *display; |
| 47 | int width, height; |
| 48 | struct wl_surface *surface; |
Pekka Paalanen | 9d1613e | 2011-11-25 12:09:16 +0200 | [diff] [blame] | 49 | struct wl_shell_surface *shell_surface; |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 50 | struct wl_buffer *buffer; |
| 51 | void *data; |
| 52 | }; |
| 53 | |
| 54 | static struct wl_buffer * |
| 55 | create_shm_buffer(struct display *display, |
Kristian Høgsberg | f389cac | 2011-08-31 16:21:38 -0400 | [diff] [blame] | 56 | int width, int height, uint32_t format, void **data_out) |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 57 | { |
| 58 | char filename[] = "/tmp/wayland-shm-XXXXXX"; |
| 59 | struct wl_buffer *buffer; |
| 60 | int fd, size, stride; |
| 61 | void *data; |
| 62 | |
| 63 | fd = mkstemp(filename); |
| 64 | if (fd < 0) { |
| 65 | fprintf(stderr, "open %s failed: %m\n", filename); |
| 66 | return NULL; |
| 67 | } |
| 68 | stride = width * 4; |
| 69 | size = stride * height; |
| 70 | if (ftruncate(fd, size) < 0) { |
| 71 | fprintf(stderr, "ftruncate failed: %m\n"); |
| 72 | close(fd); |
| 73 | return NULL; |
| 74 | } |
| 75 | |
| 76 | data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); |
| 77 | unlink(filename); |
| 78 | |
| 79 | if (data == MAP_FAILED) { |
| 80 | fprintf(stderr, "mmap failed: %m\n"); |
| 81 | close(fd); |
| 82 | return NULL; |
| 83 | } |
| 84 | |
| 85 | buffer = wl_shm_create_buffer(display->shm, fd, |
Kristian Høgsberg | f389cac | 2011-08-31 16:21:38 -0400 | [diff] [blame] | 86 | width, height, stride, format); |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 87 | |
| 88 | close(fd); |
| 89 | |
| 90 | *data_out = data; |
| 91 | |
| 92 | return buffer; |
| 93 | } |
| 94 | |
| 95 | static struct window * |
| 96 | create_window(struct display *display, int width, int height) |
| 97 | { |
| 98 | struct window *window; |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 99 | |
| 100 | window = malloc(sizeof *window); |
| 101 | window->display = display; |
| 102 | window->width = width; |
| 103 | window->height = height; |
| 104 | window->surface = wl_compositor_create_surface(display->compositor); |
Pekka Paalanen | 9d1613e | 2011-11-25 12:09:16 +0200 | [diff] [blame] | 105 | window->shell_surface = wl_shell_get_shell_surface(display->shell, |
| 106 | window->surface); |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 107 | window->buffer = create_shm_buffer(display, |
| 108 | width, height, |
Kristian Høgsberg | f389cac | 2011-08-31 16:21:38 -0400 | [diff] [blame] | 109 | WL_SHM_FORMAT_XRGB32, |
| 110 | &window->data); |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 111 | |
Pekka Paalanen | 9d1613e | 2011-11-25 12:09:16 +0200 | [diff] [blame] | 112 | wl_shell_surface_set_toplevel(window->shell_surface); |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 113 | |
| 114 | return window; |
| 115 | } |
| 116 | |
Kristian Høgsberg | 3341820 | 2011-08-16 23:01:28 -0400 | [diff] [blame] | 117 | static const struct wl_callback_listener frame_listener; |
| 118 | |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 119 | static void |
Kristian Høgsberg | 3341820 | 2011-08-16 23:01:28 -0400 | [diff] [blame] | 120 | redraw(void *data, struct wl_callback *callback, uint32_t time) |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 121 | { |
| 122 | struct window *window = data; |
| 123 | uint32_t *p; |
| 124 | int i, end, offset; |
| 125 | |
| 126 | p = window->data; |
| 127 | end = window->width * window->height; |
| 128 | offset = time >> 4; |
| 129 | for (i = 0; i < end; i++) |
| 130 | p[i] = (i + offset) * 0x0080401; |
| 131 | wl_buffer_damage(window->buffer, 0, 0, window->width, window->height); |
| 132 | |
| 133 | wl_surface_attach(window->surface, window->buffer, 0, 0); |
| 134 | wl_surface_damage(window->surface, |
| 135 | 0, 0, window->width, window->height); |
| 136 | |
Kristian Høgsberg | 3341820 | 2011-08-16 23:01:28 -0400 | [diff] [blame] | 137 | if (callback) |
| 138 | wl_callback_destroy(callback); |
| 139 | |
| 140 | callback = wl_surface_frame(window->surface); |
| 141 | wl_callback_add_listener(callback, &frame_listener, window); |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 142 | } |
| 143 | |
Kristian Høgsberg | 3341820 | 2011-08-16 23:01:28 -0400 | [diff] [blame] | 144 | static const struct wl_callback_listener frame_listener = { |
| 145 | redraw |
| 146 | }; |
| 147 | |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 148 | static void |
Kristian Høgsberg | a3cdf59 | 2011-11-17 10:27:17 -0500 | [diff] [blame] | 149 | shm_format(void *data, struct wl_shm *wl_shm, uint32_t format) |
| 150 | { |
| 151 | struct display *d = data; |
| 152 | |
| 153 | d->formats |= (1 << format); |
| 154 | } |
| 155 | |
| 156 | struct wl_shm_listener shm_listenter = { |
| 157 | shm_format |
| 158 | }; |
| 159 | |
| 160 | static void |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 161 | display_handle_global(struct wl_display *display, uint32_t id, |
| 162 | const char *interface, uint32_t version, void *data) |
| 163 | { |
| 164 | struct display *d = data; |
| 165 | |
| 166 | if (strcmp(interface, "wl_compositor") == 0) { |
Kristian Høgsberg | f790c79 | 2011-08-19 14:41:57 -0400 | [diff] [blame] | 167 | d->compositor = |
| 168 | wl_display_bind(display, id, &wl_compositor_interface); |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 169 | } else if (strcmp(interface, "wl_shell") == 0) { |
Kristian Høgsberg | f790c79 | 2011-08-19 14:41:57 -0400 | [diff] [blame] | 170 | d->shell = wl_display_bind(display, id, &wl_shell_interface); |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 171 | } else if (strcmp(interface, "wl_shm") == 0) { |
Kristian Høgsberg | f790c79 | 2011-08-19 14:41:57 -0400 | [diff] [blame] | 172 | d->shm = wl_display_bind(display, id, &wl_shm_interface); |
Kristian Høgsberg | a3cdf59 | 2011-11-17 10:27:17 -0500 | [diff] [blame] | 173 | wl_shm_add_listener(d->shm, &shm_listenter, d); |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 174 | } |
| 175 | } |
| 176 | |
| 177 | static int |
| 178 | event_mask_update(uint32_t mask, void *data) |
| 179 | { |
| 180 | struct display *d = data; |
| 181 | |
| 182 | d->mask = mask; |
| 183 | |
| 184 | return 0; |
| 185 | } |
| 186 | |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 187 | static struct display * |
| 188 | create_display(void) |
| 189 | { |
| 190 | struct display *display; |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 191 | |
| 192 | display = malloc(sizeof *display); |
| 193 | display->display = wl_display_connect(NULL); |
Tiago Vignatti | 79caa75 | 2011-07-21 16:35:38 +0300 | [diff] [blame] | 194 | assert(display->display); |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 195 | |
Kristian Høgsberg | a3cdf59 | 2011-11-17 10:27:17 -0500 | [diff] [blame] | 196 | display->formats = 0; |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 197 | wl_display_add_global_listener(display->display, |
| 198 | display_handle_global, display); |
| 199 | wl_display_iterate(display->display, WL_DISPLAY_READABLE); |
Kristian Høgsberg | a3cdf59 | 2011-11-17 10:27:17 -0500 | [diff] [blame] | 200 | wl_display_roundtrip(display->display); |
| 201 | |
| 202 | if (!(display->formats & (1 << WL_SHM_FORMAT_XRGB32))) { |
| 203 | fprintf(stderr, "WL_SHM_FORMAT_XRGB32 not available\n"); |
| 204 | exit(1); |
| 205 | } |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 206 | |
| 207 | wl_display_get_fd(display->display, event_mask_update, display); |
| 208 | |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 209 | return display; |
| 210 | } |
| 211 | |
Pekka Paalanen | 88e60fc | 2011-12-13 12:09:09 +0200 | [diff] [blame^] | 212 | static int running = 1; |
| 213 | |
| 214 | static void |
| 215 | signal_int(int signum) |
| 216 | { |
| 217 | running = 0; |
| 218 | } |
| 219 | |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 220 | int |
| 221 | main(int argc, char **argv) |
| 222 | { |
Pekka Paalanen | 88e60fc | 2011-12-13 12:09:09 +0200 | [diff] [blame^] | 223 | struct sigaction sigint; |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 224 | struct display *display; |
| 225 | struct window *window; |
| 226 | |
| 227 | display = create_display(); |
| 228 | window = create_window(display, 250, 250); |
| 229 | |
Pekka Paalanen | 88e60fc | 2011-12-13 12:09:09 +0200 | [diff] [blame^] | 230 | sigint.sa_handler = signal_int; |
| 231 | sigemptyset(&sigint.sa_mask); |
| 232 | sigint.sa_flags = SA_RESETHAND; |
| 233 | sigaction(SIGINT, &sigint, NULL); |
| 234 | |
Kristian Høgsberg | 3341820 | 2011-08-16 23:01:28 -0400 | [diff] [blame] | 235 | redraw(window, NULL, 0); |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 236 | |
Pekka Paalanen | 88e60fc | 2011-12-13 12:09:09 +0200 | [diff] [blame^] | 237 | while (running) |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 238 | wl_display_iterate(display->display, display->mask); |
| 239 | |
Pekka Paalanen | 88e60fc | 2011-12-13 12:09:09 +0200 | [diff] [blame^] | 240 | fprintf(stderr, "simple-shm exiting\n"); |
| 241 | |
Kristian Høgsberg | 97ba2e6 | 2011-07-06 11:58:45 -0400 | [diff] [blame] | 242 | return 0; |
| 243 | } |