2 * Copyright © 2010-2011 Benjamin Franzke
4 * Permission to use, copy, modify, distribute, and sell this software and
5 * its documentation for any purpose is hereby granted without fee, provided
6 * that the above copyright notice appear in all copies and that both that
7 * copyright notice and this permission notice appear in supporting
8 * documentation, and that the name of the copyright holders not be used in
9 * advertising or publicity pertaining to distribution of the software
10 * without specific, written prior permission. The copyright holders make
11 * no representations about the suitability of this software for any
12 * purpose. It is provided "as is" without express or implied warranty.
14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
15 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
16 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
17 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
18 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
19 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
20 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
35 #include <wayland-client.h>
36 #include <wayland-egl.h>
38 #include <GLES2/gl2.h>
39 #include <GLES2/gl2ext.h>
41 #include <EGL/eglext.h>
43 #include "compositor.h"
45 struct wayland_compositor {
46 struct weston_compositor base;
49 struct wl_display *display;
50 struct wl_compositor *compositor;
51 struct wl_shell *shell;
52 struct wl_output *output;
55 int32_t x, y, width, height;
58 struct wl_event_source *wl_source;
62 struct wl_list input_list;
65 struct wayland_output {
66 struct weston_output base;
69 struct wl_surface *surface;
70 struct wl_shell_surface *shell_surface;
71 struct wl_egl_window *egl_window;
73 EGLSurface egl_surface;
74 struct weston_mode mode;
77 struct wayland_input {
78 struct wayland_compositor *compositor;
79 struct wl_input_device *input_device;
84 wayland_input_create(struct wayland_compositor *c)
86 struct weston_input_device *input;
88 input = malloc(sizeof *input);
92 memset(input, 0, sizeof *input);
93 weston_input_device_init(input, &c->base);
95 c->base.input_device = &input->input_device;
101 wayland_compositor_init_egl(struct wayland_compositor *c)
105 const char *extensions;
106 EGLint config_attribs[] = {
107 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
113 EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
116 static const EGLint context_attribs[] = {
117 EGL_CONTEXT_CLIENT_VERSION, 2,
121 c->base.display = eglGetDisplay(c->parent.display);
122 if (c->base.display == NULL) {
123 fprintf(stderr, "failed to create display\n");
127 if (!eglInitialize(c->base.display, &major, &minor)) {
128 fprintf(stderr, "failed to initialize display\n");
132 extensions = eglQueryString(c->base.display, EGL_EXTENSIONS);
133 if (!strstr(extensions, "EGL_KHR_surfaceless_gles2")) {
134 fprintf(stderr, "EGL_KHR_surfaceless_gles2 not available\n");
138 if (!eglBindAPI(EGL_OPENGL_ES_API)) {
139 fprintf(stderr, "failed to bind EGL_OPENGL_ES_API\n");
142 if (!eglChooseConfig(c->base.display, config_attribs,
143 &c->base.config, 1, &n) || n == 0) {
144 fprintf(stderr, "failed to choose config: %d\n", n);
148 c->base.context = eglCreateContext(c->base.display, c->base.config,
149 EGL_NO_CONTEXT, context_attribs);
150 if (c->base.context == NULL) {
151 fprintf(stderr, "failed to create context\n");
155 if (!eglMakeCurrent(c->base.display, EGL_NO_SURFACE,
156 EGL_NO_SURFACE, c->base.context)) {
157 fprintf(stderr, "failed to make context current\n");
165 wayland_output_prepare_render(struct weston_output *output_base)
167 struct wayland_output *output = (struct wayland_output *) output_base;
168 struct weston_compositor *ec = output->base.compositor;
170 if (!eglMakeCurrent(ec->display, output->egl_surface,
171 output->egl_surface, ec->context)) {
172 fprintf(stderr, "failed to make current\n");
180 frame_done(void *data, struct wl_callback *wl_callback, uint32_t time)
182 struct weston_output *output = data;
184 weston_output_finish_frame(output, time);
187 static const struct wl_callback_listener frame_listener = {
192 wayland_output_present(struct weston_output *output_base)
194 struct wayland_output *output = (struct wayland_output *) output_base;
195 struct wayland_compositor *c =
196 (struct wayland_compositor *) output->base.compositor;
197 struct wl_callback *callback;
199 if (wayland_output_prepare_render(&output->base))
202 eglSwapBuffers(c->base.display, output->egl_surface);
203 callback = wl_surface_frame(output->parent.surface);
204 wl_callback_add_listener(callback, &frame_listener, output);
210 wayland_output_prepare_scanout_surface(struct weston_output *output_base,
211 struct weston_surface *es)
217 wayland_output_set_cursor(struct weston_output *output_base,
218 struct weston_input_device *input)
224 wayland_output_destroy(struct weston_output *output_base)
226 struct wayland_output *output = (struct wayland_output *) output_base;
227 struct weston_compositor *ec = output->base.compositor;
229 eglDestroySurface(ec->display, output->egl_surface);
230 wl_egl_window_destroy(output->parent.egl_window);
237 wayland_compositor_create_output(struct wayland_compositor *c,
238 int width, int height)
240 struct wayland_output *output;
242 output = malloc(sizeof *output);
245 memset(output, 0, sizeof *output);
248 WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED;
249 output->mode.width = width;
250 output->mode.height = height;
251 output->mode.refresh = 60;
252 wl_list_init(&output->base.mode_list);
253 wl_list_insert(&output->base.mode_list, &output->mode.link);
255 output->base.current = &output->mode;
256 weston_output_init(&output->base, &c->base, 0, 0, width, height,
259 output->parent.surface =
260 wl_compositor_create_surface(c->parent.compositor);
261 wl_surface_set_user_data(output->parent.surface, output);
263 output->parent.egl_window =
264 wl_egl_window_create(output->parent.surface, width, height);
265 if (!output->parent.egl_window) {
266 fprintf(stderr, "failure to create wl_egl_window\n");
270 output->egl_surface =
271 eglCreateWindowSurface(c->base.display, c->base.config,
272 output->parent.egl_window, NULL);
273 if (!output->egl_surface) {
274 fprintf(stderr, "failed to create window surface\n");
278 if (!eglMakeCurrent(c->base.display, output->egl_surface,
279 output->egl_surface, c->base.context)) {
280 fprintf(stderr, "failed to make surface current\n");
281 goto cleanup_surface;
285 output->parent.shell_surface =
286 wl_shell_get_shell_surface(c->parent.shell,
287 output->parent.surface);
288 /* FIXME: add shell_surface listener for resizing */
289 wl_shell_surface_set_toplevel(output->parent.shell_surface);
291 glClearColor(0, 0, 0, 0.5);
293 output->base.prepare_render = wayland_output_prepare_render;
294 output->base.present = wayland_output_present;
295 output->base.prepare_scanout_surface =
296 wayland_output_prepare_scanout_surface;
297 output->base.set_hardware_cursor = wayland_output_set_cursor;
298 output->base.destroy = wayland_output_destroy;
300 wl_list_insert(c->base.output_list.prev, &output->base.link);
305 eglDestroySurface(c->base.display, output->egl_surface);
307 wl_egl_window_destroy(output->parent.egl_window);
309 /* FIXME: cleanup weston_output */
315 /* Events received from the wayland-server this compositor is client of: */
317 /* parent output interface */
319 display_handle_geometry(void *data,
320 struct wl_output *wl_output,
329 struct wayland_compositor *c = data;
331 c->parent.screen_allocation.x = x;
332 c->parent.screen_allocation.y = y;
336 display_handle_mode(void *data,
337 struct wl_output *wl_output,
343 struct wayland_compositor *c = data;
345 c->parent.screen_allocation.width = width;
346 c->parent.screen_allocation.height = height;
349 static const struct wl_output_listener output_listener = {
350 display_handle_geometry,
354 /* parent input interface */
356 input_handle_motion(void *data, struct wl_input_device *input_device,
358 int32_t x, int32_t y, int32_t sx, int32_t sy)
360 struct wayland_input *input = data;
361 struct wayland_compositor *c = input->compositor;
363 notify_motion(c->base.input_device, time, sx, sy);
367 input_handle_button(void *data,
368 struct wl_input_device *input_device,
369 uint32_t time, uint32_t button, uint32_t state)
371 struct wayland_input *input = data;
372 struct wayland_compositor *c = input->compositor;
374 notify_button(c->base.input_device, time, button, state);
378 input_handle_key(void *data, struct wl_input_device *input_device,
379 uint32_t time, uint32_t key, uint32_t state)
381 struct wayland_input *input = data;
382 struct wayland_compositor *c = input->compositor;
384 notify_key(c->base.input_device, time, key, state);
388 input_handle_pointer_focus(void *data,
389 struct wl_input_device *input_device,
390 uint32_t time, struct wl_surface *surface,
391 int32_t x, int32_t y, int32_t sx, int32_t sy)
393 struct wayland_input *input = data;
394 struct wayland_output *output;
395 struct wayland_compositor *c = input->compositor;
398 output = wl_surface_get_user_data(surface);
399 notify_pointer_focus(c->base.input_device,
400 time, &output->base, sx, sy);
402 notify_pointer_focus(c->base.input_device, time, NULL, 0, 0);
407 input_handle_keyboard_focus(void *data,
408 struct wl_input_device *input_device,
410 struct wl_surface *surface,
411 struct wl_array *keys)
413 struct wayland_input *input = data;
414 struct wayland_compositor *c = input->compositor;
415 struct wayland_output *output;
418 output = wl_surface_get_user_data(surface);
419 notify_keyboard_focus(c->base.input_device,
420 time, &output->base, keys);
422 notify_keyboard_focus(c->base.input_device, time, NULL, NULL);
426 static const struct wl_input_device_listener input_device_listener = {
430 input_handle_pointer_focus,
431 input_handle_keyboard_focus,
435 display_add_input(struct wayland_compositor *c, uint32_t id)
437 struct wayland_input *input;
439 input = malloc(sizeof *input);
443 memset(input, 0, sizeof *input);
445 input->compositor = c;
446 input->input_device = wl_display_bind(c->parent.display,
447 id, &wl_input_device_interface);
448 wl_list_insert(c->input_list.prev, &input->link);
450 wl_input_device_add_listener(input->input_device,
451 &input_device_listener, input);
452 wl_input_device_set_user_data(input->input_device, input);
456 display_handle_global(struct wl_display *display, uint32_t id,
457 const char *interface, uint32_t version, void *data)
459 struct wayland_compositor *c = data;
461 if (strcmp(interface, "wl_compositor") == 0) {
462 c->parent.compositor =
463 wl_display_bind(display, id, &wl_compositor_interface);
464 } else if (strcmp(interface, "wl_output") == 0) {
466 wl_display_bind(display, id, &wl_output_interface);
467 wl_output_add_listener(c->parent.output, &output_listener, c);
468 } else if (strcmp(interface, "wl_input_device") == 0) {
469 display_add_input(c, id);
470 } else if (strcmp(interface, "wl_shell") == 0) {
472 wl_display_bind(display, id, &wl_shell_interface);
477 update_event_mask(uint32_t mask, void *data)
479 struct wayland_compositor *c = data;
481 c->parent.event_mask = mask;
482 if (c->parent.wl_source)
483 wl_event_source_fd_update(c->parent.wl_source, mask);
489 wayland_compositor_handle_event(int fd, uint32_t mask, void *data)
491 struct wayland_compositor *c = data;
493 if (mask & WL_EVENT_READABLE)
494 wl_display_iterate(c->parent.display, WL_DISPLAY_READABLE);
495 if (mask & WL_EVENT_WRITABLE)
496 wl_display_iterate(c->parent.display, WL_DISPLAY_WRITABLE);
502 wayland_destroy(struct weston_compositor *ec)
504 weston_compositor_shutdown(ec);
509 static struct weston_compositor *
510 wayland_compositor_create(struct wl_display *display, int width, int height)
512 struct wayland_compositor *c;
513 struct wl_event_loop *loop;
516 c = malloc(sizeof *c);
520 memset(c, 0, sizeof *c);
522 c->parent.display = wl_display_connect(NULL);
524 if (c->parent.display == NULL) {
525 fprintf(stderr, "failed to create display: %m\n");
529 wl_list_init(&c->input_list);
530 wl_display_add_global_listener(c->parent.display,
531 display_handle_global, c);
533 wl_display_iterate(c->parent.display, WL_DISPLAY_READABLE);
535 c->base.wl_display = display;
536 if (wayland_compositor_init_egl(c) < 0)
539 c->base.destroy = wayland_destroy;
541 /* Can't init base class until we have a current egl context */
542 if (weston_compositor_init(&c->base, display) < 0)
545 if (wayland_compositor_create_output(c, width, height) < 0)
548 if (wayland_input_create(c) < 0)
551 loop = wl_display_get_event_loop(c->base.wl_display);
553 fd = wl_display_get_fd(c->parent.display, update_event_mask, c);
554 c->parent.wl_source =
555 wl_event_loop_add_fd(loop, fd, c->parent.event_mask,
556 wayland_compositor_handle_event, c);
557 if (c->parent.wl_source == NULL)
563 struct weston_compositor *
564 backend_init(struct wl_display *display, char *options);
566 WL_EXPORT struct weston_compositor *
567 backend_init(struct wl_display *display, char *options)
569 int width = 1024, height = 640, i;
572 static char * const tokens[] = { "width", "height", NULL };
575 while (i = getsubopt(&p, tokens, &value), i != -1) {
578 width = strtol(value, NULL, 0);
581 height = strtol(value, NULL, 0);
586 return wayland_compositor_create(display, width, height);