sample/simple-egl/src/simple-egl.cpp

   1 /*
   2  * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
   3  * Copyright © 2011 Benjamin Franzke
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #include <mutex>
  26 #include <chrono>
  27
  28 #include <iostream>
  29 #include <string>
  30 #include <stdarg.h>
  31 #include <sys/types.h>
  32 #include <thread>
  33 #include <exception>
  34 #include <vector>
  35 #include <sstream>
  36
  37 #include <assert.h>
  38 #include <signal.h>
  39
  40 #include <wayland-client.h>
  41 #include <wayland-egl.h>
  42
  43 #include <GLES2/gl2.h>
  44 #include <EGL/egl.h>
  45 #include <EGL/eglext.h>
  46
  47 #include <unistd.h>
  48 #include <time.h>
  49
  50 #include <libwindowmanager.h>
  51 #include <libhomescreen.hpp>
  52
  53 #include <ilm/ivi-application-client-protocol.h>
  54 #include "hmi-debug.h"
  55
  56 using namespace std;
  57
  58 const char* log_prefix = "simple-egl";
  59 uint32_t g_id_ivisurf = 9009;
  60 long port = 1700;
  61 string token = string("wm");
  62
  63 string app_name = string("Navigation");
  64 const char* main_role = "navigation";
  65
  66 LibHomeScreen* hs;
  67 LibWindowmanager *wm;
  68
  69 static const struct wl_interface *types[] = {
  70         NULL,
  71         NULL,
  72         NULL,
  73         &wl_surface_interface,
  74         &ivi_surface_interface,
  75 };
  76
  77 static const struct wl_message ivi_surface_requests[] = {
  78         { "destroy", "", types + 0 },
  79 };
  80
  81 static const struct wl_message ivi_surface_events[] = {
  82         { "configure", "ii", types + 0 },
  83 };
  84
  85 const struct wl_interface ivi_surface_interface = {
  86         "ivi_surface", 1,
  87         1, ivi_surface_requests,
  88         1, ivi_surface_events,
  89 };
  90
  91 static const struct wl_message ivi_application_requests[] = {
  92         { "surface_create", "uon", types + 2 },
  93 };
  94
  95 const struct wl_interface ivi_application_interface = {
  96         "ivi_application", 1,
  97         1, ivi_application_requests,
  98         0, NULL,
  99 };
 100
 101 #include "platform.h"
 102
 103 #ifndef EGL_EXT_swap_buffers_with_damage
 104 #define EGL_EXT_swap_buffers_with_damage 1
 105 typedef EGLBoolean (EGLAPIENTRYP PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC)(EGLDisplay dpy, EGLSurface surface, EGLint *rects, EGLint n_rects);
 106 #endif
 107
 108 #ifndef EGL_EXT_buffer_age
 109 #define EGL_EXT_buffer_age 1
 110 #define EGL_BUFFER_AGE_EXT                      0x313D
 111 #endif
 112
 113 struct window;
 114 struct seat;
 115
 116 struct display {
 117         struct wl_display *display;
 118         struct wl_registry *registry;
 119         struct wl_compositor *compositor;
 120         struct wl_seat *seat;
 121         struct {
 122                 EGLDisplay dpy;
 123                 EGLContext ctx;
 124                 EGLConfig conf;
 125         } egl;
 126         struct window *window;
 127         struct ivi_application *ivi_application;
 128
 129         PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC swap_buffers_with_damage;
 130 };
 131
 132 struct geometry {
 133         int width, height;
 134 };
 135
 136 struct window {
 137         struct display *display;
 138         struct geometry geometry, window_size;
 139         struct {
 140                 GLuint rotation_uniform;
 141                 GLuint pos;
 142                 GLuint col;
 143         } gl;
 144
 145         uint32_t benchmark_time, frames;
 146         struct wl_egl_window *native;
 147         struct wl_surface *surface;
 148         struct ivi_surface *ivi_surface;
 149         EGLSurface egl_surface;
 150         struct wl_callback *callback;
 151         int fullscreen, opaque, buffer_size, frame_sync;
 152 };
 153
 154 static const char *vert_shader_text =
 155         "uniform mat4 rotation;\n"
 156         "attribute vec4 pos;\n"
 157         "attribute vec4 color;\n"
 158         "varying vec4 v_color;\n"
 159         "void main() {\n"
 160         "  gl_Position = rotation * pos;\n"
 161         "  v_color = color;\n"
 162         "}\n";
 163
 164 static const char *frag_shader_text =
 165         "precision mediump float;\n"
 166         "varying vec4 v_color;\n"
 167         "void main() {\n"
 168         "  gl_FragColor = v_color;\n"
 169         "}\n";
 170
 171 static int running = 1;
 172
 173 static void
 174 init_egl(struct display *display, struct window *window)
 175 {
 176         static const EGLint context_attribs[] = {
 177                 EGL_CONTEXT_CLIENT_VERSION, 2,
 178                 EGL_NONE
 179         };
 180         const char *extensions;
 181
 182         EGLint config_attribs[] = {
 183                 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
 184                 EGL_RED_SIZE, 1,
 185                 EGL_GREEN_SIZE, 1,
 186                 EGL_BLUE_SIZE, 1,
 187                 EGL_ALPHA_SIZE, 1,
 188                 EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
 189                 EGL_NONE
 190         };
 191
 192         EGLint major, minor, n, count, i, size;
 193         EGLConfig *configs;
 194         EGLBoolean ret;
 195
 196         if (window->opaque || window->buffer_size == 16)
 197                 config_attribs[9] = 0;
 198
 199         display->egl.dpy = weston_platform_get_egl_display(EGL_PLATFORM_WAYLAND_KHR, display->display, NULL);
 200         assert(display->egl.dpy);
 201
 202         ret = eglInitialize(display->egl.dpy, &major, &minor);
 203         assert(ret == EGL_TRUE);
 204         ret = eglBindAPI(EGL_OPENGL_ES_API);
 205         assert(ret == EGL_TRUE);
 206
 207         if (!eglGetConfigs(display->egl.dpy, NULL, 0, &count) || count < 1)
 208                 assert(0);
 209
 210         configs = calloc(count, sizeof *configs);
 211         assert(configs);
 212
 213         ret = eglChooseConfig(display->egl.dpy, config_attribs,
 214                               configs, count, &n);
 215         assert(ret && n >= 1);
 216
 217         for (i = 0; i < n; i++) {
 218                 eglGetConfigAttrib(display->egl.dpy,
 219                                    configs[i], EGL_BUFFER_SIZE, &size);
 220                 if (window->buffer_size == size) {
 221                         display->egl.conf = configs[i];
 222                         break;
 223                 }
 224         }
 225         free(configs);
 226         if (display->egl.conf == NULL) {
 227                 HMI_ERROR(log_prefix,"did not find config with buffer size %d",
 228                         window->buffer_size);
 229                 exit(EXIT_FAILURE);
 230         }
 231
 232         display->egl.ctx = eglCreateContext(display->egl.dpy,
 233                                             display->egl.conf,
 234                                             EGL_NO_CONTEXT, context_attribs);
 235         assert(display->egl.ctx);
 236
 237         display->swap_buffers_with_damage = NULL;
 238         extensions = eglQueryString(display->egl.dpy, EGL_EXTENSIONS);
 239         if (extensions &&
 240             strstr(extensions, "EGL_EXT_swap_buffers_with_damage") &&
 241             strstr(extensions, "EGL_EXT_buffer_age"))
 242                 display->swap_buffers_with_damage =
 243                         (PFNEGLSWAPBUFFERSWITHDAMAGEEXTPROC)
 244                         eglGetProcAddress("eglSwapBuffersWithDamageEXT");
 245
 246         if (display->swap_buffers_with_damage)
 247                 HMI_DEBUG(log_prefix,"has EGL_EXT_buffer_age and EGL_EXT_swap_buffers_with_damage");
 248
 249 }
 250
 251 static void
 252 fini_egl(struct display *display)
 253 {
 254         eglTerminate(display->egl.dpy);
 255         eglReleaseThread();
 256 }
 257
 258 static GLuint
 259 create_shader(struct window *window, const char *source, GLenum shader_type)
 260 {
 261         GLuint shader;
 262         GLint status;
 263
 264         shader = glCreateShader(shader_type);
 265         assert(shader != 0);
 266
 267         glShaderSource(shader, 1, (const char **) &source, NULL);
 268         glCompileShader(shader);
 269
 270         glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
 271         if (!status) {
 272                 char log[1000];
 273                 GLsizei len;
 274                 glGetShaderInfoLog(shader, 1000, &len, log);
 275                 HMI_ERROR(log_prefix,"Error: compiling %s: %*s",
 276                         shader_type == GL_VERTEX_SHADER ? "vertex" : "fragment",
 277                         len, log);
 278                 exit(1);
 279         }
 280
 281         return shader;
 282 }
 283
 284 static void
 285 init_gl(struct window *window)
 286 {
 287         GLuint frag, vert;
 288         GLuint program;
 289         GLint status;
 290
 291         frag = create_shader(window, frag_shader_text, GL_FRAGMENT_SHADER);
 292         vert = create_shader(window, vert_shader_text, GL_VERTEX_SHADER);
 293
 294         program = glCreateProgram();
 295         glAttachShader(program, frag);
 296         glAttachShader(program, vert);
 297         glLinkProgram(program);
 298
 299         glGetProgramiv(program, GL_LINK_STATUS, &status);
 300         if (!status) {
 301                 char log[1000];
 302                 GLsizei len;
 303                 glGetProgramInfoLog(program, 1000, &len, log);
 304                 HMI_ERROR(log_prefix,"Error: linking:%*s", len, log);
 305                 exit(1);
 306         }
 307
 308         glUseProgram(program);
 309
 310         window->gl.pos = 0;
 311         window->gl.col = 1;
 312
 313         glBindAttribLocation(program, window->gl.pos, "pos");
 314         glBindAttribLocation(program, window->gl.col, "color");
 315         glLinkProgram(program);
 316
 317         window->gl.rotation_uniform =
 318                 glGetUniformLocation(program, "rotation");
 319 }
 320
 321 static void
 322 create_ivi_surface(struct window *window, struct display *display)
 323 {
 324         uint32_t id_ivisurf = g_id_ivisurf;
 325         window->ivi_surface =
 326                 ivi_application_surface_create(display->ivi_application,
 327                                                id_ivisurf, window->surface);
 328
 329         if (window->ivi_surface == NULL) {
 330                 HMI_ERROR(log_prefix,"Failed to create ivi_client_surface");
 331                 abort();
 332         }
 333
 334 }
 335
 336 static void
 337 create_surface(struct window *window)
 338 {
 339         struct display *display = window->display;
 340         EGLBoolean ret;
 341
 342         window->surface = wl_compositor_create_surface(display->compositor);
 343
 344         window->native =
 345                 wl_egl_window_create(window->surface,
 346                                      window->geometry.width,
 347                                      window->geometry.height);
 348         window->egl_surface =
 349                 weston_platform_create_egl_surface(display->egl.dpy,
 350                                                    display->egl.conf,
 351                                                    window->native, NULL);
 352
 353
 354         if (display->ivi_application ) {
 355                 create_ivi_surface(window, display);
 356         } else {
 357                 assert(0);
 358         }
 359
 360         ret = eglMakeCurrent(window->display->egl.dpy, window->egl_surface,
 361                              window->egl_surface, window->display->egl.ctx);
 362         assert(ret == EGL_TRUE);
 363
 364         if (!window->frame_sync)
 365                 eglSwapInterval(display->egl.dpy, 0);
 366
 367 }
 368
 369 static void
 370 destroy_surface(struct window *window)
 371 {
 372         /* Required, otherwise segfault in egl_dri2.c: dri2_make_current()
 373          * on eglReleaseThread(). */
 374         eglMakeCurrent(window->display->egl.dpy, EGL_NO_SURFACE, EGL_NO_SURFACE,
 375                        EGL_NO_CONTEXT);
 376
 377         eglDestroySurface(window->display->egl.dpy, window->egl_surface);
 378         wl_egl_window_destroy(window->native);
 379
 380         if (window->display->ivi_application)
 381                 ivi_surface_destroy(window->ivi_surface);
 382         wl_surface_destroy(window->surface);
 383
 384         if (window->callback)
 385                 wl_callback_destroy(window->callback);
 386 }
 387
 388 static void
 389 redraw(void *data, struct wl_callback *callback, uint32_t time)
 390 {
 391         struct window *window = data;
 392         struct display *display = window->display;
 393         static const GLfloat verts[3][2] = {
 394                 { -0.5, -0.5 },
 395                 {  0.5, -0.5 },
 396                 {  0,    0.5 }
 397         };
 398
 399         static const GLfloat colors[3][3] = {
 400                 { 1, 0, 0 },
 401                 { 0, 1, 0 },
 402                 { 0, 0, 1 }
 403         };
 404
 405         GLfloat angle;
 406         GLfloat rotation[4][4] = {
 407                 { 1, 0, 0, 0 },
 408                 { 0, 1, 0, 0 },
 409                 { 0, 0, 1, 0 },
 410                 { 0, 0, 0, 1 }
 411         };
 412         static const uint32_t speed_div = 5, benchmark_interval = 5;
 413         struct wl_region *region;
 414         EGLint rect[4];
 415         EGLint buffer_age = 0;
 416         struct timeval tv;
 417
 418         assert(window->callback == callback);
 419         window->callback = NULL;
 420
 421         if (callback)
 422                 wl_callback_destroy(callback);
 423
 424         gettimeofday(&tv, NULL);
 425         time = tv.tv_sec * 1000 + tv.tv_usec / 1000;
 426         if (window->frames == 0)
 427                 window->benchmark_time = time;
 428
 429         if (time - window->benchmark_time > (benchmark_interval * 1000)) {
 430                 HMI_DEBUG(log_prefix,"%d frames in %d seconds: %f fps",
 431                        window->frames,
 432                        benchmark_interval,
 433                        (float) window->frames / benchmark_interval);
 434                 window->benchmark_time = time;
 435                 window->frames = 0;
 436         }
 437
 438         angle = (time / speed_div) % 360 * M_PI / 180.0;
 439         rotation[0][0] =  cos(angle);
 440         rotation[0][2] =  sin(angle);
 441         rotation[2][0] = -sin(angle);
 442         rotation[2][2] =  cos(angle);
 443
 444         if (display->swap_buffers_with_damage)
 445                 eglQuerySurface(display->egl.dpy, window->egl_surface,
 446                                 EGL_BUFFER_AGE_EXT, &buffer_age);
 447
 448         glViewport(0, 0, window->geometry.width, window->geometry.height);
 449
 450         glUniformMatrix4fv(window->gl.rotation_uniform, 1, GL_FALSE,
 451                            (GLfloat *) rotation);
 452
 453         glClearColor(0.0, 0.0, 0.0, 0.5);
 454         glClear(GL_COLOR_BUFFER_BIT);
 455
 456         glVertexAttribPointer(window->gl.pos, 2, GL_FLOAT, GL_FALSE, 0, verts);
 457         glVertexAttribPointer(window->gl.col, 3, GL_FLOAT, GL_FALSE, 0, colors);
 458         glEnableVertexAttribArray(window->gl.pos);
 459         glEnableVertexAttribArray(window->gl.col);
 460
 461         glDrawArrays(GL_TRIANGLES, 0, 3);
 462
 463         glDisableVertexAttribArray(window->gl.pos);
 464         glDisableVertexAttribArray(window->gl.col);
 465
 466         if (window->opaque || window->fullscreen) {
 467                 region = wl_compositor_create_region(window->display->compositor);
 468                 wl_region_add(region, 0, 0,
 469                               window->geometry.width,
 470                               window->geometry.height);
 471                 wl_surface_set_opaque_region(window->surface, region);
 472                 wl_region_destroy(region);
 473         } else {
 474                 wl_surface_set_opaque_region(window->surface, NULL);
 475         }
 476
 477         if (display->swap_buffers_with_damage && buffer_age > 0) {
 478                 rect[0] = window->geometry.width / 4 - 1;
 479                 rect[1] = window->geometry.height / 4 - 1;
 480                 rect[2] = window->geometry.width / 2 + 2;
 481                 rect[3] = window->geometry.height / 2 + 2;
 482                 display->swap_buffers_with_damage(display->egl.dpy,
 483                                                   window->egl_surface,
 484                                                   rect, 1);
 485         } else {
 486                 eglSwapBuffers(display->egl.dpy, window->egl_surface);
 487         }
 488
 489         window->frames++;
 490 }
 491
 492 static void
 493 registry_handle_global(void *data, struct wl_registry *registry,
 494                        uint32_t name, const char *interface, uint32_t version)
 495 {
 496         struct display *d = data;
 497
 498         if (strcmp(interface, "wl_compositor") == 0) {
 499                 d->compositor =
 500                         wl_registry_bind(registry, name,
 501                                          &wl_compositor_interface, 1);
 502         } else if (strcmp(interface, "ivi_application") == 0) {
 503                 d->ivi_application =
 504                         wl_registry_bind(registry, name,
 505                                          &ivi_application_interface, 1);
 506         }
 507 }
 508
 509 static void
 510 registry_handle_global_remove(void *data, struct wl_registry *registry,
 511                               uint32_t name)
 512 {
 513 }
 514
 515 static const struct wl_registry_listener registry_listener = {
 516         registry_handle_global,
 517         registry_handle_global_remove
 518 };
 519
 520 static void
 521 signal_int(int signum)
 522 {
 523         running = 0;
 524 }
 525
 526 int
 527 init_wm(LibWindowmanager *wm, struct window *window)
 528 {
 529         HMI_DEBUG(log_prefix,"called");
 530
 531         if (wm->init(port, token) != 0) {
 532                 HMI_ERROR(log_prefix,"wm init failed. ");
 533                 return -1;
 534         }
 535
 536         g_id_ivisurf = wm->requestSurface(main_role);
 537         if (g_id_ivisurf < 0) {
 538                 HMI_ERROR(log_prefix,"wm request surface failed ");
 539                 return -1;
 540         }
 541         HMI_DEBUG(log_prefix,"IVI_SURFACE_ID: %d ", g_id_ivisurf);
 542
 543         WMHandler wmh;
 544         wmh.on_visible = [](const char* role, bool visible){
 545                 // Sample code if user uses visible event
 546                 HMI_DEBUG(log_prefix, "role: %s, visible: %s", role, visible ? "true" : "false");
 547         };
 548         wmh.on_sync_draw = [wm, window](const char* role, const char* area, Rect rect) {
 549
 550                 HMI_DEBUG(log_prefix,"Surface %s got syncDraw! Area: %s. w:%d, h:%d", role, area, rect.width(), rect.height());
 551
 552                 wl_egl_window_resize(window->native, rect.width(), rect.height(), 0, 0);
 553                 window->geometry.width  = rect.width();
 554                 window->geometry.height = rect.height();
 555
 556                 wm->endDraw(role);
 557         };
 558
 559         wm->setEventHandler(wmh);
 560
 561         return 0;
 562 }
 563
 564 int
 565 init_hs(LibHomeScreen* hs){
 566         if(hs->init(port, token)!=0)
 567         {
 568                 HMI_ERROR(log_prefix,"homescreen init failed. ");
 569                 return -1;
 570         }
 571
 572         hs->set_event_handler(LibHomeScreen::Event_TapShortcut, [](json_object *object){
 573                 const char *application_name = json_object_get_string(
 574                         json_object_object_get(object, "application_name"));
 575                 HMI_DEBUG("simple-egl","Event_TapShortcut application_name = %s ", application_name);
 576                 if(strcmp(application_name, app_name.c_str()) == 0)
 577                 {
 578                         HMI_DEBUG("simple-egl","try to activesurface %s ", app_name.c_str());
 579                         wm->activateWindow(main_role);
 580                 }
 581         });
 582
 583         return 0;
 584 }
 585
 586 int
 587 main(int argc, char **argv)
 588 {
 589         struct sigaction sigint;
 590         struct window  window  = { 0 };
 591         struct display display = { 0 };
 592
 593         window.display = &display;
 594         display.window = &window;
 595         window.geometry.width  = 1080;
 596         window.geometry.height = 1488;
 597         window.window_size = window.geometry;
 598         window.buffer_size = 32;
 599         window.frame_sync = 1;
 600
 601         if(argc > 2){
 602                 port = strtol(argv[1], NULL, 10);
 603                 token = argv[2];
 604         }
 605
 606         HMI_DEBUG(log_prefix,"main_role: %s, port: %d, token: %s. ", main_role, port, token.c_str());
 607
 608         display.display = wl_display_connect(NULL);
 609         assert(display.display);
 610
 611         display.registry = wl_display_get_registry(display.display);
 612         wl_registry_add_listener(display.registry,
 613                                  &registry_listener, &display);
 614
 615         wl_display_roundtrip(display.display);
 616
 617         init_egl(&display, &window);
 618
 619         wm = new LibWindowmanager();
 620         if(init_wm(wm, &window)!=0){
 621                 fini_egl(&display);
 622                 if (display.ivi_application)
 623                         ivi_application_destroy(display.ivi_application);
 624                 if (display.compositor)
 625                         wl_compositor_destroy(display.compositor);
 626                 wl_registry_destroy(display.registry);
 627                 wl_display_flush(display.display);
 628                 return -1;
 629         }
 630
 631         hs = new LibHomeScreen();
 632         if(init_hs(hs)!=0){
 633                 fini_egl(&display);
 634                 if (display.ivi_application)
 635                         ivi_application_destroy(display.ivi_application);
 636                 if (display.compositor)
 637                         wl_compositor_destroy(display.compositor);
 638                 wl_registry_destroy(display.registry);
 639                 wl_display_flush(display.display);
 640                 return -1;
 641         }
 642
 643         create_surface(&window);
 644         init_gl(&window);
 645
 646         //Ctrl+C
 647         sigint.sa_handler = signal_int;
 648         sigemptyset(&sigint.sa_mask);
 649         sigint.sa_flags = SA_RESETHAND;
 650         sigaction(SIGINT, &sigint, NULL);
 651
 652         eglSwapBuffers(window.display->egl.dpy, window.egl_surface);
 653
 654         wm->activateWindow(main_role);
 655
 656         /* The mainloop here is a little subtle.  Redrawing will cause
 657          * EGL to read events so we can just call
 658          * wl_display_dispatch_pending() to handle any events that got
 659          * queued up as a side effect. */
 660         while (running) {
 661                 wl_display_dispatch_pending(display.display);
 662                 redraw(&window, NULL, 0);
 663         }
 664
 665         HMI_DEBUG(log_prefix,"simple-egl exiting! ");
 666
 667         destroy_surface(&window);
 668         fini_egl(&display);
 669
 670         if (display.ivi_application)
 671                 ivi_application_destroy(display.ivi_application);
 672
 673         if (display.compositor)
 674                 wl_compositor_destroy(display.compositor);
 675
 676         wl_registry_destroy(display.registry);
 677         wl_display_flush(display.display);
 678         wl_display_disconnect(display.display);
 679
 680         return 0;
 681 }