1 /*
2 * Copyright © 2011 Benjamin Franzke
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24 #include "config.h"
25
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include <string.h>
29 #include <stdbool.h>
30 #include <math.h>
31 #include <assert.h>
32 #include <signal.h>
33
34 #include <linux/input.h>
35
36 #include <wayland-client.h>
37 #include <wayland-egl.h>
38 #include <wayland-cursor.h>
39
40 #include <GLES2/gl2.h>
41 #include <EGL/egl.h>
42 #include <EGL/eglext.h>
43
44 #include "xdg-shell-client-protocol.h"
45 #include <sys/types.h>
46 #include <unistd.h>
47 #include "protocol/ivi-application-client-protocol.h"
48 #define IVI_SURFACE_ID 9000
49
50 #include "shared/platform.h"
51
52 #ifndef EGL_EXT_swap_buffers_with_damage
53 #define EGL_EXT_swap_buffers_with_damage 1
54 typedef EGLBoolean (EGLAPIENTRYP PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC)(EGLDisplay dpy, EGLSurface surface, EGLint *rects, EGLint n_rects);
55 #endif
56
57 #ifndef EGL_EXT_buffer_age
58 #define EGL_EXT_buffer_age 1
59 #define EGL_BUFFER_AGE_EXT 0x313D
60 #endif
61
62 struct window;
63 struct seat;
64
65 struct display {
66 struct wl_display *display;
67 struct wl_registry *registry;
68 struct wl_compositor *compositor;
69 struct xdg_shell *shell;
70 struct wl_seat *seat;
71 struct wl_pointer *pointer;
72 struct wl_touch *touch;
73 struct wl_keyboard *keyboard;
74 struct wl_shm *shm;
75 struct wl_cursor_theme *cursor_theme;
76 struct wl_cursor *default_cursor;
77 struct wl_surface *cursor_surface;
78 struct {
79 EGLDisplay dpy;
80 EGLContext ctx;
81 EGLConfig conf;
82 } egl;
83 struct window *window;
84 struct ivi_application *ivi_application;
85
86 PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC swap_buffers_with_damage;
87 };
88
89 struct geometry {
90 int width, height;
91 };
92
93 struct window {
94 struct display *display;
95 struct geometry geometry, window_size;
96 struct {
97 GLuint rotation_uniform;
98 GLuint pos;
99 GLuint col;
100 } gl;
101
102 uint32_t benchmark_time, frames;
103 struct wl_egl_window *native;
104 struct wl_surface *surface;
105 struct xdg_surface *xdg_surface;
106 struct ivi_surface *ivi_surface;
107 EGLSurface egl_surface;
108 struct wl_callback *callback;
109 int fullscreen, opaque, buffer_size, frame_sync;
110 };
111
112 static const char *vert_shader_text =
113 "uniform mat4 rotation;\n"
114 "attribute vec4 pos;\n"
115 "attribute vec4 color;\n"
116 "varying vec4 v_color;\n"
117 "void main() {\n"
118 " gl_Position = rotation * pos;\n"
119 " v_color = color;\n"
120 "}\n";
121
122 static const char *frag_shader_text =
123 "precision mediump float;\n"
124 "varying vec4 v_color;\n"
125 "void main() {\n"
126 " gl_FragColor = v_color;\n"
127 "}\n";
128
129 static int running = 1;
130
131 static void
init_egl(struct display * display,struct window * window)132 init_egl(struct display *display, struct window *window)
133 {
134 static const EGLint context_attribs[] = {
135 EGL_CONTEXT_CLIENT_VERSION, 2,
136 EGL_NONE
137 };
138 const char *extensions;
139
140 EGLint config_attribs[] = {
141 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
142 EGL_RED_SIZE, 1,
143 EGL_GREEN_SIZE, 1,
144 EGL_BLUE_SIZE, 1,
145 EGL_ALPHA_SIZE, 1,
146 EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
147 EGL_NONE
148 };
149
150 EGLint major, minor, n, count, i, size;
151 EGLConfig *configs;
152 EGLBoolean ret;
153
154 if (window->opaque || window->buffer_size == 16)
155 config_attribs[9] = 0;
156
157 display->egl.dpy =
158 weston_platform_get_egl_display(EGL_PLATFORM_WAYLAND_KHR,
159 display->display, NULL);
160 assert(display->egl.dpy);
161
162 ret = eglInitialize(display->egl.dpy, &major, &minor);
163 assert(ret == EGL_TRUE);
164 ret = eglBindAPI(EGL_OPENGL_ES_API);
165 assert(ret == EGL_TRUE);
166
167 if (!eglGetConfigs(display->egl.dpy, NULL, 0, &count) || count < 1)
168 assert(0);
169
170 configs = calloc(count, sizeof *configs);
171 assert(configs);
172
173 ret = eglChooseConfig(display->egl.dpy, config_attribs,
174 configs, count, &n);
175 assert(ret && n >= 1);
176
177 for (i = 0; i < n; i++) {
178 eglGetConfigAttrib(display->egl.dpy,
179 configs[i], EGL_BUFFER_SIZE, &size);
180 if (window->buffer_size == size) {
181 display->egl.conf = configs[i];
182 break;
183 }
184 }
185 free(configs);
186 if (display->egl.conf == NULL) {
187 fprintf(stderr, "did not find config with buffer size %d\n",
188 window->buffer_size);
189 exit(EXIT_FAILURE);
190 }
191
192 display->egl.ctx = eglCreateContext(display->egl.dpy,
193 display->egl.conf,
194 EGL_NO_CONTEXT, context_attribs);
195 assert(display->egl.ctx);
196
197 display->swap_buffers_with_damage = NULL;
198 extensions = eglQueryString(display->egl.dpy, EGL_EXTENSIONS);
199 if (extensions &&
200 strstr(extensions, "EGL_EXT_swap_buffers_with_damage") &&
201 strstr(extensions, "EGL_EXT_buffer_age"))
202 display->swap_buffers_with_damage =
203 (PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC)
204 eglGetProcAddress("eglSwapBuffersWithDamageEXT");
205
206 if (display->swap_buffers_with_damage)
207 printf("has EGL_EXT_buffer_age and EGL_EXT_swap_buffers_with_damage\n");
208
209 }
210
211 static void
fini_egl(struct display * display)212 fini_egl(struct display *display)
213 {
214 eglTerminate(display->egl.dpy);
215 eglReleaseThread();
216 }
217
218 static GLuint
create_shader(struct window * window,const char * source,GLenum shader_type)219 create_shader(struct window *window, const char *source, GLenum shader_type)
220 {
221 GLuint shader;
222 GLint status;
223
224 shader = glCreateShader(shader_type);
225 assert(shader != 0);
226
227 glShaderSource(shader, 1, (const char **) &source, NULL);
228 glCompileShader(shader);
229
230 glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
231 if (!status) {
232 char log[1000];
233 GLsizei len;
234 glGetShaderInfoLog(shader, 1000, &len, log);
235 fprintf(stderr, "Error: compiling %s: %*s\n",
236 shader_type == GL_VERTEX_SHADER ? "vertex" : "fragment",
237 len, log);
238 exit(1);
239 }
240
241 return shader;
242 }
243
244 static void
init_gl(struct window * window)245 init_gl(struct window *window)
246 {
247 GLuint frag, vert;
248 GLuint program;
249 GLint status;
250
251 frag = create_shader(window, frag_shader_text, GL_FRAGMENT_SHADER);
252 vert = create_shader(window, vert_shader_text, GL_VERTEX_SHADER);
253
254 program = glCreateProgram();
255 glAttachShader(program, frag);
256 glAttachShader(program, vert);
257 glLinkProgram(program);
258
259 glGetProgramiv(program, GL_LINK_STATUS, &status);
260 if (!status) {
261 char log[1000];
262 GLsizei len;
263 glGetProgramInfoLog(program, 1000, &len, log);
264 fprintf(stderr, "Error: linking:\n%*s\n", len, log);
265 exit(1);
266 }
267
268 glUseProgram(program);
269
270 window->gl.pos = 0;
271 window->gl.col = 1;
272
273 glBindAttribLocation(program, window->gl.pos, "pos");
274 glBindAttribLocation(program, window->gl.col, "color");
275 glLinkProgram(program);
276
277 window->gl.rotation_uniform =
278 glGetUniformLocation(program, "rotation");
279 }
280
281 static void
handle_surface_configure(void * data,struct xdg_surface * surface,int32_t width,int32_t height,struct wl_array * states,uint32_t serial)282 handle_surface_configure(void *data, struct xdg_surface *surface,
283 int32_t width, int32_t height,
284 struct wl_array *states, uint32_t serial)
285 {
286 struct window *window = data;
287 uint32_t *p;
288
289 window->fullscreen = 0;
290 wl_array_for_each(p, states) {
291 uint32_t state = *p;
292 switch (state) {
293 case XDG_SURFACE_STATE_FULLSCREEN:
294 window->fullscreen = 1;
295 break;
296 }
297 }
298
299 if (width > 0 && height > 0) {
300 if (!window->fullscreen) {
301 window->window_size.width = width;
302 window->window_size.height = height;
303 }
304 window->geometry.width = width;
305 window->geometry.height = height;
306 } else if (!window->fullscreen) {
307 window->geometry = window->window_size;
308 }
309
310 if (window->native)
311 wl_egl_window_resize(window->native,
312 window->geometry.width,
313 window->geometry.height, 0, 0);
314
315 xdg_surface_ack_configure(surface, serial);
316 }
317
318 static void
handle_surface_delete(void * data,struct xdg_surface * xdg_surface)319 handle_surface_delete(void *data, struct xdg_surface *xdg_surface)
320 {
321 running = 0;
322 }
323
324 static const struct xdg_surface_listener xdg_surface_listener = {
325 handle_surface_configure,
326 handle_surface_delete,
327 };
328
329 static void
handle_ivi_surface_configure(void * data,struct ivi_surface * ivi_surface,int32_t width,int32_t height)330 handle_ivi_surface_configure(void *data, struct ivi_surface *ivi_surface,
331 int32_t width, int32_t height)
332 {
333 struct window *window = data;
334
335 wl_egl_window_resize(window->native, width, height, 0, 0);
336
337 window->geometry.width = width;
338 window->geometry.height = height;
339
340 if (!window->fullscreen)
341 window->window_size = window->geometry;
342 }
343
344 static const struct ivi_surface_listener ivi_surface_listener = {
345 handle_ivi_surface_configure,
346 };
347
348 static void
create_xdg_surface(struct window * window,struct display * display)349 create_xdg_surface(struct window *window, struct display *display)
350 {
351 window->xdg_surface = xdg_shell_get_xdg_surface(display->shell,
352 window->surface);
353
354 xdg_surface_add_listener(window->xdg_surface,
355 &xdg_surface_listener, window);
356
357 xdg_surface_set_title(window->xdg_surface, "simple-egl");
358 }
359
360 static void
create_ivi_surface(struct window * window,struct display * display)361 create_ivi_surface(struct window *window, struct display *display)
362 {
363 uint32_t id_ivisurf = IVI_SURFACE_ID + (uint32_t)getpid();
364 window->ivi_surface =
365 ivi_application_surface_create(display->ivi_application,
366 id_ivisurf, window->surface);
367
368 if (window->ivi_surface == NULL) {
369 fprintf(stderr, "Failed to create ivi_client_surface\n");
370 abort();
371 }
372
373 ivi_surface_add_listener(window->ivi_surface,
374 &ivi_surface_listener, window);
375 }
376
377 static void
create_surface(struct window * window)378 create_surface(struct window *window)
379 {
380 struct display *display = window->display;
381 EGLBoolean ret;
382
383 window->surface = wl_compositor_create_surface(display->compositor);
384
385 window->native =
386 wl_egl_window_create(window->surface,
387 window->geometry.width,
388 window->geometry.height);
389 window->egl_surface =
390 weston_platform_create_egl_surface(display->egl.dpy,
391 display->egl.conf,
392 window->native, NULL);
393
394
395 if (display->shell) {
396 create_xdg_surface(window, display);
397 } else if (display->ivi_application ) {
398 create_ivi_surface(window, display);
399 } else {
400 assert(0);
401 }
402
403 ret = eglMakeCurrent(window->display->egl.dpy, window->egl_surface,
404 window->egl_surface, window->display->egl.ctx);
405 assert(ret == EGL_TRUE);
406
407 if (!window->frame_sync)
408 eglSwapInterval(display->egl.dpy, 0);
409
410 if (!display->shell)
411 return;
412
413 if (window->fullscreen)
414 xdg_surface_set_fullscreen(window->xdg_surface, NULL);
415 }
416
417 static void
destroy_surface(struct window * window)418 destroy_surface(struct window *window)
419 {
420 /* Required, otherwise segfault in egl_dri2.c: dri2_make_current()
421 * on eglReleaseThread(). */
422 eglMakeCurrent(window->display->egl.dpy, EGL_NO_SURFACE, EGL_NO_SURFACE,
423 EGL_NO_CONTEXT);
424
425 eglDestroySurface(window->display->egl.dpy, window->egl_surface);
426 wl_egl_window_destroy(window->native);
427
428 if (window->xdg_surface)
429 xdg_surface_destroy(window->xdg_surface);
430 if (window->display->ivi_application)
431 ivi_surface_destroy(window->ivi_surface);
432 wl_surface_destroy(window->surface);
433
434 if (window->callback)
435 wl_callback_destroy(window->callback);
436 }
437
438 static void
redraw(void * data,struct wl_callback * callback,uint32_t time)439 redraw(void *data, struct wl_callback *callback, uint32_t time)
440 {
441 struct window *window = data;
442 struct display *display = window->display;
443 static const GLfloat verts[3][2] = {
444 { -0.5, -0.5 },
445 { 0.5, -0.5 },
446 { 0, 0.5 }
447 };
448 static const GLfloat colors[3][3] = {
449 { 1, 0, 0 },
450 { 0, 1, 0 },
451 { 0, 0, 1 }
452 };
453 GLfloat angle;
454 GLfloat rotation[4][4] = {
455 { 1, 0, 0, 0 },
456 { 0, 1, 0, 0 },
457 { 0, 0, 1, 0 },
458 { 0, 0, 0, 1 }
459 };
460 static const uint32_t speed_div = 5, benchmark_interval = 5;
461 struct wl_region *region;
462 EGLint rect[4];
463 EGLint buffer_age = 0;
464 struct timeval tv;
465
466 assert(window->callback == callback);
467 window->callback = NULL;
468
469 if (callback)
470 wl_callback_destroy(callback);
471
472 gettimeofday(&tv, NULL);
473 time = tv.tv_sec * 1000 + tv.tv_usec / 1000;
474 if (window->frames == 0)
475 window->benchmark_time = time;
476 if (time - window->benchmark_time > (benchmark_interval * 1000)) {
477 printf("%d frames in %d seconds: %f fps\n",
478 window->frames,
479 benchmark_interval,
480 (float) window->frames / benchmark_interval);
481 window->benchmark_time = time;
482 window->frames = 0;
483 }
484
485 angle = (time / speed_div) % 360 * M_PI / 180.0;
486 rotation[0][0] = cos(angle);
487 rotation[0][2] = sin(angle);
488 rotation[2][0] = -sin(angle);
489 rotation[2][2] = cos(angle);
490
491 if (display->swap_buffers_with_damage)
492 eglQuerySurface(display->egl.dpy, window->egl_surface,
493 EGL_BUFFER_AGE_EXT, &buffer_age);
494
495 glViewport(0, 0, window->geometry.width, window->geometry.height);
496
497 glUniformMatrix4fv(window->gl.rotation_uniform, 1, GL_FALSE,
498 (GLfloat *) rotation);
499
500 glClearColor(0.0, 0.0, 0.0, 0.5);
501 glClear(GL_COLOR_BUFFER_BIT);
502
503 glVertexAttribPointer(window->gl.pos, 2, GL_FLOAT, GL_FALSE, 0, verts);
504 glVertexAttribPointer(window->gl.col, 3, GL_FLOAT, GL_FALSE, 0, colors);
505 glEnableVertexAttribArray(window->gl.pos);
506 glEnableVertexAttribArray(window->gl.col);
507
508 glDrawArrays(GL_TRIANGLES, 0, 3);
509
510 glDisableVertexAttribArray(window->gl.pos);
511 glDisableVertexAttribArray(window->gl.col);
512
513 if (window->opaque || window->fullscreen) {
514 region = wl_compositor_create_region(window->display->compositor);
515 wl_region_add(region, 0, 0,
516 window->geometry.width,
517 window->geometry.height);
518 wl_surface_set_opaque_region(window->surface, region);
519 wl_region_destroy(region);
520 } else {
521 wl_surface_set_opaque_region(window->surface, NULL);
522 }
523
524 if (display->swap_buffers_with_damage && buffer_age > 0) {
525 rect[0] = window->geometry.width / 4 - 1;
526 rect[1] = window->geometry.height / 4 - 1;
527 rect[2] = window->geometry.width / 2 + 2;
528 rect[3] = window->geometry.height / 2 + 2;
529 display->swap_buffers_with_damage(display->egl.dpy,
530 window->egl_surface,
531 rect, 1);
532 } else {
533 eglSwapBuffers(display->egl.dpy, window->egl_surface);
534 }
535 window->frames++;
536 }
537
538 static void
pointer_handle_enter(void * data,struct wl_pointer * pointer,uint32_t serial,struct wl_surface * surface,wl_fixed_t sx,wl_fixed_t sy)539 pointer_handle_enter(void *data, struct wl_pointer *pointer,
540 uint32_t serial, struct wl_surface *surface,
541 wl_fixed_t sx, wl_fixed_t sy)
542 {
543 struct display *display = data;
544 struct wl_buffer *buffer;
545 struct wl_cursor *cursor = display->default_cursor;
546 struct wl_cursor_image *image;
547
548 if (display->window->fullscreen)
549 wl_pointer_set_cursor(pointer, serial, NULL, 0, 0);
550 else if (cursor) {
551 image = display->default_cursor->images[0];
552 buffer = wl_cursor_image_get_buffer(image);
553 if (!buffer)
554 return;
555 wl_pointer_set_cursor(pointer, serial,
556 display->cursor_surface,
557 image->hotspot_x,
558 image->hotspot_y);
559 wl_surface_attach(display->cursor_surface, buffer, 0, 0);
560 wl_surface_damage(display->cursor_surface, 0, 0,
561 image->width, image->height);
562 wl_surface_commit(display->cursor_surface);
563 }
564 }
565
566 static void
pointer_handle_leave(void * data,struct wl_pointer * pointer,uint32_t serial,struct wl_surface * surface)567 pointer_handle_leave(void *data, struct wl_pointer *pointer,
568 uint32_t serial, struct wl_surface *surface)
569 {
570 }
571
572 static void
pointer_handle_motion(void * data,struct wl_pointer * pointer,uint32_t time,wl_fixed_t sx,wl_fixed_t sy)573 pointer_handle_motion(void *data, struct wl_pointer *pointer,
574 uint32_t time, wl_fixed_t sx, wl_fixed_t sy)
575 {
576 }
577
578 static void
pointer_handle_button(void * data,struct wl_pointer * wl_pointer,uint32_t serial,uint32_t time,uint32_t button,uint32_t state)579 pointer_handle_button(void *data, struct wl_pointer *wl_pointer,
580 uint32_t serial, uint32_t time, uint32_t button,
581 uint32_t state)
582 {
583 struct display *display = data;
584
585 if (!display->window->xdg_surface)
586 return;
587
588 if (button == BTN_LEFT && state == WL_POINTER_BUTTON_STATE_PRESSED)
589 xdg_surface_move(display->window->xdg_surface,
590 display->seat, serial);
591 }
592
593 static void
pointer_handle_axis(void * data,struct wl_pointer * wl_pointer,uint32_t time,uint32_t axis,wl_fixed_t value)594 pointer_handle_axis(void *data, struct wl_pointer *wl_pointer,
595 uint32_t time, uint32_t axis, wl_fixed_t value)
596 {
597 }
598
599 static const struct wl_pointer_listener pointer_listener = {
600 pointer_handle_enter,
601 pointer_handle_leave,
602 pointer_handle_motion,
603 pointer_handle_button,
604 pointer_handle_axis,
605 };
606
607 static void
touch_handle_down(void * data,struct wl_touch * wl_touch,uint32_t serial,uint32_t time,struct wl_surface * surface,int32_t id,wl_fixed_t x_w,wl_fixed_t y_w)608 touch_handle_down(void *data, struct wl_touch *wl_touch,
609 uint32_t serial, uint32_t time, struct wl_surface *surface,
610 int32_t id, wl_fixed_t x_w, wl_fixed_t y_w)
611 {
612 struct display *d = (struct display *)data;
613
614 if (!d->shell)
615 return;
616
617 xdg_surface_move(d->window->xdg_surface, d->seat, serial);
618 }
619
620 static void
touch_handle_up(void * data,struct wl_touch * wl_touch,uint32_t serial,uint32_t time,int32_t id)621 touch_handle_up(void *data, struct wl_touch *wl_touch,
622 uint32_t serial, uint32_t time, int32_t id)
623 {
624 }
625
626 static void
touch_handle_motion(void * data,struct wl_touch * wl_touch,uint32_t time,int32_t id,wl_fixed_t x_w,wl_fixed_t y_w)627 touch_handle_motion(void *data, struct wl_touch *wl_touch,
628 uint32_t time, int32_t id, wl_fixed_t x_w, wl_fixed_t y_w)
629 {
630 }
631
632 static void
touch_handle_frame(void * data,struct wl_touch * wl_touch)633 touch_handle_frame(void *data, struct wl_touch *wl_touch)
634 {
635 }
636
637 static void
touch_handle_cancel(void * data,struct wl_touch * wl_touch)638 touch_handle_cancel(void *data, struct wl_touch *wl_touch)
639 {
640 }
641
642 static const struct wl_touch_listener touch_listener = {
643 touch_handle_down,
644 touch_handle_up,
645 touch_handle_motion,
646 touch_handle_frame,
647 touch_handle_cancel,
648 };
649
650 static void
keyboard_handle_keymap(void * data,struct wl_keyboard * keyboard,uint32_t format,int fd,uint32_t size)651 keyboard_handle_keymap(void *data, struct wl_keyboard *keyboard,
652 uint32_t format, int fd, uint32_t size)
653 {
654 }
655
656 static void
keyboard_handle_enter(void * data,struct wl_keyboard * keyboard,uint32_t serial,struct wl_surface * surface,struct wl_array * keys)657 keyboard_handle_enter(void *data, struct wl_keyboard *keyboard,
658 uint32_t serial, struct wl_surface *surface,
659 struct wl_array *keys)
660 {
661 }
662
663 static void
keyboard_handle_leave(void * data,struct wl_keyboard * keyboard,uint32_t serial,struct wl_surface * surface)664 keyboard_handle_leave(void *data, struct wl_keyboard *keyboard,
665 uint32_t serial, struct wl_surface *surface)
666 {
667 }
668
669 static void
keyboard_handle_key(void * data,struct wl_keyboard * keyboard,uint32_t serial,uint32_t time,uint32_t key,uint32_t state)670 keyboard_handle_key(void *data, struct wl_keyboard *keyboard,
671 uint32_t serial, uint32_t time, uint32_t key,
672 uint32_t state)
673 {
674 struct display *d = data;
675
676 if (!d->shell)
677 return;
678
679 if (key == KEY_F11 && state) {
680 if (d->window->fullscreen)
681 xdg_surface_unset_fullscreen(d->window->xdg_surface);
682 else
683 xdg_surface_set_fullscreen(d->window->xdg_surface, NULL);
684 } else if (key == KEY_ESC && state)
685 running = 0;
686 }
687
688 static void
keyboard_handle_modifiers(void * data,struct wl_keyboard * keyboard,uint32_t serial,uint32_t mods_depressed,uint32_t mods_latched,uint32_t mods_locked,uint32_t group)689 keyboard_handle_modifiers(void *data, struct wl_keyboard *keyboard,
690 uint32_t serial, uint32_t mods_depressed,
691 uint32_t mods_latched, uint32_t mods_locked,
692 uint32_t group)
693 {
694 }
695
696 static const struct wl_keyboard_listener keyboard_listener = {
697 keyboard_handle_keymap,
698 keyboard_handle_enter,
699 keyboard_handle_leave,
700 keyboard_handle_key,
701 keyboard_handle_modifiers,
702 };
703
704 static void
seat_handle_capabilities(void * data,struct wl_seat * seat,enum wl_seat_capability caps)705 seat_handle_capabilities(void *data, struct wl_seat *seat,
706 enum wl_seat_capability caps)
707 {
708 struct display *d = data;
709
710 if ((caps & WL_SEAT_CAPABILITY_POINTER) && !d->pointer) {
711 d->pointer = wl_seat_get_pointer(seat);
712 wl_pointer_add_listener(d->pointer, &pointer_listener, d);
713 } else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && d->pointer) {
714 wl_pointer_destroy(d->pointer);
715 d->pointer = NULL;
716 }
717
718 if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !d->keyboard) {
719 d->keyboard = wl_seat_get_keyboard(seat);
720 wl_keyboard_add_listener(d->keyboard, &keyboard_listener, d);
721 } else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && d->keyboard) {
722 wl_keyboard_destroy(d->keyboard);
723 d->keyboard = NULL;
724 }
725
726 if ((caps & WL_SEAT_CAPABILITY_TOUCH) && !d->touch) {
727 d->touch = wl_seat_get_touch(seat);
728 wl_touch_set_user_data(d->touch, d);
729 wl_touch_add_listener(d->touch, &touch_listener, d);
730 } else if (!(caps & WL_SEAT_CAPABILITY_TOUCH) && d->touch) {
731 wl_touch_destroy(d->touch);
732 d->touch = NULL;
733 }
734 }
735
736 static const struct wl_seat_listener seat_listener = {
737 seat_handle_capabilities,
738 };
739
740 static void
xdg_shell_ping(void * data,struct xdg_shell * shell,uint32_t serial)741 xdg_shell_ping(void *data, struct xdg_shell *shell, uint32_t serial)
742 {
743 xdg_shell_pong(shell, serial);
744 }
745
746 static const struct xdg_shell_listener xdg_shell_listener = {
747 xdg_shell_ping,
748 };
749
750 #define XDG_VERSION 5 /* The version of xdg-shell that we implement */
751 #ifdef static_assert
752 static_assert(XDG_VERSION == XDG_SHELL_VERSION_CURRENT,
753 "Interface version doesn't match implementation version");
754 #endif
755
756 static void
registry_handle_global(void * data,struct wl_registry * registry,uint32_t name,const char * interface,uint32_t version)757 registry_handle_global(void *data, struct wl_registry *registry,
758 uint32_t name, const char *interface, uint32_t version)
759 {
760 struct display *d = data;
761
762 if (strcmp(interface, "wl_compositor") == 0) {
763 d->compositor =
764 wl_registry_bind(registry, name,
765 &wl_compositor_interface, 1);
766 } else if (strcmp(interface, "xdg_shell") == 0) {
767 d->shell = wl_registry_bind(registry, name,
768 &xdg_shell_interface, 1);
769 xdg_shell_add_listener(d->shell, &xdg_shell_listener, d);
770 xdg_shell_use_unstable_version(d->shell, XDG_VERSION);
771 } else if (strcmp(interface, "wl_seat") == 0) {
772 d->seat = wl_registry_bind(registry, name,
773 &wl_seat_interface, 1);
774 wl_seat_add_listener(d->seat, &seat_listener, d);
775 } else if (strcmp(interface, "wl_shm") == 0) {
776 d->shm = wl_registry_bind(registry, name,
777 &wl_shm_interface, 1);
778 d->cursor_theme = wl_cursor_theme_load(NULL, 32, d->shm);
779 if (!d->cursor_theme) {
780 fprintf(stderr, "unable to load default theme\n");
781 return;
782 }
783 d->default_cursor =
784 wl_cursor_theme_get_cursor(d->cursor_theme, "left_ptr");
785 if (!d->default_cursor) {
786 fprintf(stderr, "unable to load default left pointer\n");
787 // TODO: abort ?
788 }
789 } else if (strcmp(interface, "ivi_application") == 0) {
790 d->ivi_application =
791 wl_registry_bind(registry, name,
792 &ivi_application_interface, 1);
793 }
794 }
795
796 static void
registry_handle_global_remove(void * data,struct wl_registry * registry,uint32_t name)797 registry_handle_global_remove(void *data, struct wl_registry *registry,
798 uint32_t name)
799 {
800 }
801
802 static const struct wl_registry_listener registry_listener = {
803 registry_handle_global,
804 registry_handle_global_remove
805 };
806
807 static void
signal_int(int signum)808 signal_int(int signum)
809 {
810 running = 0;
811 }
812
813 static void
usage(int error_code)814 usage(int error_code)
815 {
816 fprintf(stderr, "Usage: simple-egl [OPTIONS]\n\n"
817 " -f\tRun in fullscreen mode\n"
818 " -o\tCreate an opaque surface\n"
819 " -s\tUse a 16 bpp EGL config\n"
820 " -b\tDon't sync to compositor redraw (eglSwapInterval 0)\n"
821 " -h\tThis help text\n\n");
822
823 exit(error_code);
824 }
825
826 int
main(int argc,char ** argv)827 main(int argc, char **argv)
828 {
829 struct sigaction sigint;
830 struct display display = { 0 };
831 struct window window = { 0 };
832 int i, ret = 0;
833
834 window.display = &display;
835 display.window = &window;
836 window.geometry.width = 250;
837 window.geometry.height = 250;
838 window.window_size = window.geometry;
839 window.buffer_size = 32;
840 window.frame_sync = 1;
841
842 for (i = 1; i < argc; i++) {
843 if (strcmp("-f", argv[i]) == 0)
844 window.fullscreen = 1;
845 else if (strcmp("-o", argv[i]) == 0)
846 window.opaque = 1;
847 else if (strcmp("-s", argv[i]) == 0)
848 window.buffer_size = 16;
849 else if (strcmp("-b", argv[i]) == 0)
850 window.frame_sync = 0;
851 else if (strcmp("-h", argv[i]) == 0)
852 usage(EXIT_SUCCESS);
853 else
854 usage(EXIT_FAILURE);
855 }
856
857 display.display = wl_display_connect(NULL);
858 assert(display.display);
859
860 display.registry = wl_display_get_registry(display.display);
861 wl_registry_add_listener(display.registry,
862 ®istry_listener, &display);
863
864 wl_display_dispatch(display.display);
865
866 init_egl(&display, &window);
867 create_surface(&window);
868 init_gl(&window);
869
870 display.cursor_surface =
871 wl_compositor_create_surface(display.compositor);
872
873 sigint.sa_handler = signal_int;
874 sigemptyset(&sigint.sa_mask);
875 sigint.sa_flags = SA_RESETHAND;
876 sigaction(SIGINT, &sigint, NULL);
877
878 /* The mainloop here is a little subtle. Redrawing will cause
879 * EGL to read events so we can just call
880 * wl_display_dispatch_pending() to handle any events that got
881 * queued up as a side effect. */
882 while (running && ret != -1) {
883 wl_display_dispatch_pending(display.display);
884 redraw(&window, NULL, 0);
885 }
886
887 fprintf(stderr, "simple-egl exiting\n");
888
889 destroy_surface(&window);
890 fini_egl(&display);
891
892 wl_surface_destroy(display.cursor_surface);
893 if (display.cursor_theme)
894 wl_cursor_theme_destroy(display.cursor_theme);
895
896 if (display.shell)
897 xdg_shell_destroy(display.shell);
898
899 if (display.ivi_application)
900 ivi_application_destroy(display.ivi_application);
901
902 if (display.compositor)
903 wl_compositor_destroy(display.compositor);
904
905 wl_registry_destroy(display.registry);
906 wl_display_flush(display.display);
907 wl_display_disconnect(display.display);
908
909 return 0;
910 }
911