blob: 65c0eae4816444ad10594885bf218c2d0ffe4d71 [file] [log] [blame]
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -04001/*
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 Høgsberg97ba2e62011-07-06 11:58:45 -040028#include <assert.h>
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -040029#include <unistd.h>
30#include <sys/mman.h>
Pekka Paalanen88e60fc2011-12-13 12:09:09 +020031#include <signal.h>
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -040032
33#include <wayland-client.h>
34#include <wayland-egl.h>
35
36struct display {
37 struct wl_display *display;
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -040038 struct wl_compositor *compositor;
39 struct wl_shell *shell;
40 struct wl_shm *shm;
Kristian Høgsberga3cdf592011-11-17 10:27:17 -050041 uint32_t formats;
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -040042 uint32_t mask;
43};
44
45struct window {
46 struct display *display;
47 int width, height;
48 struct wl_surface *surface;
Pekka Paalanen9d1613e2011-11-25 12:09:16 +020049 struct wl_shell_surface *shell_surface;
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -040050 struct wl_buffer *buffer;
Pekka Paalanenc4cd62a2011-12-13 13:48:24 +020051 void *shm_data;
52 struct wl_callback *callback;
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -040053};
54
55static struct wl_buffer *
56create_shm_buffer(struct display *display,
Kristian Høgsbergf389cac2011-08-31 16:21:38 -040057 int width, int height, uint32_t format, void **data_out)
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -040058{
59 char filename[] = "/tmp/wayland-shm-XXXXXX";
Kristian Høgsberg16626282012-04-03 11:21:27 -040060 struct wl_shm_pool *pool;
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -040061 struct wl_buffer *buffer;
62 int fd, size, stride;
63 void *data;
64
65 fd = mkstemp(filename);
66 if (fd < 0) {
67 fprintf(stderr, "open %s failed: %m\n", filename);
68 return NULL;
69 }
70 stride = width * 4;
71 size = stride * height;
72 if (ftruncate(fd, size) < 0) {
73 fprintf(stderr, "ftruncate failed: %m\n");
74 close(fd);
75 return NULL;
76 }
77
78 data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
79 unlink(filename);
80
81 if (data == MAP_FAILED) {
82 fprintf(stderr, "mmap failed: %m\n");
83 close(fd);
84 return NULL;
85 }
86
Kristian Høgsberg16626282012-04-03 11:21:27 -040087 pool = wl_shm_create_pool(display->shm, fd, size);
88 buffer = wl_shm_pool_create_buffer(pool, 0,
89 width, height, stride, format);
90 wl_shm_pool_destroy(pool);
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -040091 close(fd);
92
93 *data_out = data;
94
95 return buffer;
96}
97
98static struct window *
99create_window(struct display *display, int width, int height)
100{
101 struct window *window;
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400102
103 window = malloc(sizeof *window);
Pekka Paalanenc4cd62a2011-12-13 13:48:24 +0200104 window->callback = NULL;
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400105 window->display = display;
106 window->width = width;
107 window->height = height;
108 window->surface = wl_compositor_create_surface(display->compositor);
Pekka Paalanen9d1613e2011-11-25 12:09:16 +0200109 window->shell_surface = wl_shell_get_shell_surface(display->shell,
110 window->surface);
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400111 window->buffer = create_shm_buffer(display,
112 width, height,
Kristian Høgsberg8e81df42012-01-11 14:24:46 -0500113 WL_SHM_FORMAT_XRGB8888,
Pekka Paalanenc4cd62a2011-12-13 13:48:24 +0200114 &window->shm_data);
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400115
Pekka Paalanen9d1613e2011-11-25 12:09:16 +0200116 wl_shell_surface_set_toplevel(window->shell_surface);
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400117
118 return window;
119}
120
Pekka Paalanenc4cd62a2011-12-13 13:48:24 +0200121static void
122destroy_window(struct window *window)
123{
124 if (window->callback)
125 wl_callback_destroy(window->callback);
126
127 wl_buffer_destroy(window->buffer);
128 wl_shell_surface_destroy(window->shell_surface);
129 wl_surface_destroy(window->surface);
130 free(window);
131}
132
Pekka Paalanen313bd842012-04-26 15:14:50 +0300133static void
134paint_pixels(void *image, int width, int height, uint32_t time)
135{
136 const int halfh = height / 2;
137 const int halfw = width / 2;
138 int ir, or;
139 uint32_t *pixel = image;
140 int y;
141
142 /* squared radii thresholds */
143 or = (halfw < halfh ? halfw : halfh) - 8;
144 ir = or - 32;
145 or *= or;
146 ir *= ir;
147
148 for (y = 0; y < height; y++) {
149 int x;
150 int y2 = (y - halfh) * (y - halfh);
151
152 for (x = 0; x < width; x++) {
153 uint32_t v;
154
155 /* squared distance from center */
156 int r2 = (x - halfw) * (x - halfw) + y2;
157
158 if (r2 < ir)
159 v = (r2 / 32 + time / 64) * 0x0080401;
160 else if (r2 < or)
161 v = (y + time / 32) * 0x0080401;
162 else
163 v = (x + time / 16) * 0x0080401;
164 v &= 0x00ffffff;
165
166 /* cross if compositor uses X from XRGB as alpha */
167 if (abs(x - y) > 6 && abs(x + y - height) > 6)
168 v |= 0xff000000;
169
170 *pixel++ = v;
171 }
172 }
173}
174
Kristian Høgsberg33418202011-08-16 23:01:28 -0400175static const struct wl_callback_listener frame_listener;
176
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400177static void
Kristian Høgsberg33418202011-08-16 23:01:28 -0400178redraw(void *data, struct wl_callback *callback, uint32_t time)
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400179{
180 struct window *window = data;
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400181
Pekka Paalanen313bd842012-04-26 15:14:50 +0300182 paint_pixels(window->shm_data, window->width, window->height, time);
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400183 wl_surface_attach(window->surface, window->buffer, 0, 0);
184 wl_surface_damage(window->surface,
185 0, 0, window->width, window->height);
186
Kristian Høgsberg33418202011-08-16 23:01:28 -0400187 if (callback)
188 wl_callback_destroy(callback);
189
Pekka Paalanenc4cd62a2011-12-13 13:48:24 +0200190 window->callback = wl_surface_frame(window->surface);
191 wl_callback_add_listener(window->callback, &frame_listener, window);
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400192}
193
Kristian Høgsberg33418202011-08-16 23:01:28 -0400194static const struct wl_callback_listener frame_listener = {
195 redraw
196};
197
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400198static void
Kristian Høgsberga3cdf592011-11-17 10:27:17 -0500199shm_format(void *data, struct wl_shm *wl_shm, uint32_t format)
200{
201 struct display *d = data;
202
203 d->formats |= (1 << format);
204}
205
206struct wl_shm_listener shm_listenter = {
207 shm_format
208};
209
210static void
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400211display_handle_global(struct wl_display *display, uint32_t id,
212 const char *interface, uint32_t version, void *data)
213{
214 struct display *d = data;
215
216 if (strcmp(interface, "wl_compositor") == 0) {
Kristian Høgsbergf790c792011-08-19 14:41:57 -0400217 d->compositor =
218 wl_display_bind(display, id, &wl_compositor_interface);
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400219 } else if (strcmp(interface, "wl_shell") == 0) {
Kristian Høgsbergf790c792011-08-19 14:41:57 -0400220 d->shell = wl_display_bind(display, id, &wl_shell_interface);
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400221 } else if (strcmp(interface, "wl_shm") == 0) {
Kristian Høgsbergf790c792011-08-19 14:41:57 -0400222 d->shm = wl_display_bind(display, id, &wl_shm_interface);
Kristian Høgsberga3cdf592011-11-17 10:27:17 -0500223 wl_shm_add_listener(d->shm, &shm_listenter, d);
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400224 }
225}
226
227static int
228event_mask_update(uint32_t mask, void *data)
229{
230 struct display *d = data;
231
232 d->mask = mask;
233
234 return 0;
235}
236
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400237static struct display *
238create_display(void)
239{
240 struct display *display;
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400241
242 display = malloc(sizeof *display);
243 display->display = wl_display_connect(NULL);
Tiago Vignatti79caa752011-07-21 16:35:38 +0300244 assert(display->display);
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400245
Kristian Høgsberga3cdf592011-11-17 10:27:17 -0500246 display->formats = 0;
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400247 wl_display_add_global_listener(display->display,
248 display_handle_global, display);
249 wl_display_iterate(display->display, WL_DISPLAY_READABLE);
Kristian Høgsberga3cdf592011-11-17 10:27:17 -0500250 wl_display_roundtrip(display->display);
251
Kristian Høgsberg8e81df42012-01-11 14:24:46 -0500252 if (!(display->formats & (1 << WL_SHM_FORMAT_XRGB8888))) {
Kristian Høgsberga3cdf592011-11-17 10:27:17 -0500253 fprintf(stderr, "WL_SHM_FORMAT_XRGB32 not available\n");
254 exit(1);
255 }
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400256
257 wl_display_get_fd(display->display, event_mask_update, display);
258
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400259 return display;
260}
261
Pekka Paalanenc4cd62a2011-12-13 13:48:24 +0200262static void
263destroy_display(struct display *display)
264{
265 if (display->shm)
266 wl_shm_destroy(display->shm);
267
268 if (display->shell)
269 wl_shell_destroy(display->shell);
270
271 if (display->compositor)
272 wl_compositor_destroy(display->compositor);
273
Pekka Paalanenfb850c42011-12-15 10:07:52 +0200274 wl_display_flush(display->display);
Kristian Høgsbergfcfc83f2012-02-28 14:29:19 -0500275 wl_display_disconnect(display->display);
Pekka Paalanenc4cd62a2011-12-13 13:48:24 +0200276 free(display);
277}
278
Pekka Paalanen88e60fc2011-12-13 12:09:09 +0200279static int running = 1;
280
281static void
282signal_int(int signum)
283{
284 running = 0;
285}
286
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400287int
288main(int argc, char **argv)
289{
Pekka Paalanen88e60fc2011-12-13 12:09:09 +0200290 struct sigaction sigint;
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400291 struct display *display;
292 struct window *window;
293
294 display = create_display();
295 window = create_window(display, 250, 250);
296
Pekka Paalanen88e60fc2011-12-13 12:09:09 +0200297 sigint.sa_handler = signal_int;
298 sigemptyset(&sigint.sa_mask);
299 sigint.sa_flags = SA_RESETHAND;
300 sigaction(SIGINT, &sigint, NULL);
301
Kristian Høgsberg33418202011-08-16 23:01:28 -0400302 redraw(window, NULL, 0);
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400303
Pekka Paalanen88e60fc2011-12-13 12:09:09 +0200304 while (running)
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400305 wl_display_iterate(display->display, display->mask);
306
Pekka Paalanen88e60fc2011-12-13 12:09:09 +0200307 fprintf(stderr, "simple-shm exiting\n");
Pekka Paalanenc4cd62a2011-12-13 13:48:24 +0200308 destroy_window(window);
309 destroy_display(display);
Pekka Paalanen88e60fc2011-12-13 12:09:09 +0200310
Kristian Høgsberg97ba2e62011-07-06 11:58:45 -0400311 return 0;
312}