osdopengl.cc

   1 /*
   2     Copyright 2004-2005 Chris Tallon, 2006,2011-2012 Marten Richter
   3
   4     This file is part of VOMP.
   5
   6     VOMP is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     VOMP is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with VOMP.  If not, see <https://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "videoomx.h"
  21 #include "surfaceopengl.h"
  22 #include "message.h"
  23 #include "control.h"
  24
  25 #include "osdopengl.h"
  26
  27 #define  BACKBUFFER_WIDTH 1280
  28 #define  BACKBUFFER_HEIGHT 720
  29
  30 OsdOpenGL::OsdOpenGL()
  31 {
  32   glmutex.lock();
  33
  34   external_driving=false;
  35
  36   lastrendertime=getTimeMS();
  37   display_height=0;
  38   display_width=0;
  39   mode=0;
  40
  41 #ifdef BENCHMARK_FPS
  42         last_benchmark_time=getTimeMS();
  43         num_benchmark_frames=0;
  44 #endif
  45
  46
  47 }
  48
  49 OsdOpenGL::~OsdOpenGL()
  50 {
  51
  52   if (initted)
  53   {
  54           threadStop();
  55                 shutdown();
  56   }
  57
  58
  59   glmutex.unlock();
  60 }
  61
  62 Surface * OsdOpenGL::createNewSurface() {
  63         return (Surface*)new SurfaceOpenGL();
  64 }
  65
  66 int OsdOpenGL::init()
  67 {
  68   if (initted) return 0;
  69   Video* video = Video::getInstance();
  70
  71    //init broadcom chipset (Move to video?)
  72
  73
  74    //First get connection to egl
  75    egl_display=eglGetDisplay(EGL_DEFAULT_DISPLAY);
  76
  77    if (egl_display==EGL_NO_DISPLAY) {
  78            Log::getInstance()->log("OSD", Log::WARN, "Could not get egl display! %x",eglGetError());
  79            glmutex.unlock();
  80            return 0;
  81    }
  82
  83
  84
  85    if (eglInitialize(egl_display, NULL, NULL)==EGL_FALSE) {
  86            Log::getInstance()->log("OSD", Log::WARN, "Initialising display failed! %x",eglGetError());
  87            glmutex.unlock();
  88            return 0;
  89    }
  90
  91    const char *query_str=eglQueryString(egl_display,EGL_CLIENT_APIS);
  92    if (query_str) Log::getInstance()->logLongString("OSD", Log::NOTICE, query_str);
  93    else Log::getInstance()->log("OSD", Log::WARN, "Could not query display %x",eglGetError());
  94    query_str=eglQueryString(egl_display,EGL_EXTENSIONS);
  95    if (query_str)    Log::getInstance()->logLongString("OSD", Log::NOTICE, query_str);
  96    else Log::getInstance()->log("OSD", Log::WARN, "Could not query display %x",eglGetError());
  97
  98    const EGLint attributs[]={
  99                  EGL_RED_SIZE,8,EGL_GREEN_SIZE, 8,EGL_BLUE_SIZE, 8,EGL_ALPHA_SIZE, 8,
 100          EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT,
 101          EGL_CONFORMANT, EGL_OPENGL_ES2_BIT,
 102          EGL_NONE
 103    }; // Here, we might have to select the resolution!
 104
 105
 106    EGLint number;
 107
 108    if (eglChooseConfig(egl_display, attributs, &egl_ourconfig, 1, &number)==EGL_FALSE) {
 109            Log::getInstance()->log("OSD", Log::WARN, "Choosing egl config failed! %x",eglGetError());
 110            glmutex.unlock();
 111            return 0;
 112    }
 113
 114    const EGLint attr_context[]={
 115                    EGL_CONTEXT_CLIENT_VERSION,2,
 116           EGL_NONE
 117       };
 118
 119    egl_context=eglCreateContext(egl_display,egl_ourconfig,EGL_NO_CONTEXT,attr_context);
 120    if (egl_context==EGL_NO_CONTEXT) {
 121            Log::getInstance()->log("OSD", Log::WARN, "Creating egl context failed! %x",eglGetError());
 122            glmutex.unlock();
 123            return 0;
 124    }
 125
 126    // warning broadcom specific, get display size!
 127    display_width=display_height=0;
 128    if (graphics_get_display_size(0, &display_width, &display_height)<0) {
 129            Log::getInstance()->log("OSD", Log::WARN, "Getting display size failed! (BCM API) ");
 130            glmutex.unlock();
 131            return 0;
 132    }
 133    Log::getInstance()->log("OSD", Log::NOTICE, "Displaysize is %d x %d ",display_width, display_height);
 134    VC_RECT_T dst_rect ={0,0,display_width,display_height};
 135    VC_RECT_T src_rect={0,0,BACKBUFFER_WIDTH <<16,BACKBUFFER_HEIGHT<<16};
 136
 137   DISPMANX_UPDATE_HANDLE_T  bcm_update;
 138
 139    bcm_display=vc_dispmanx_display_open(0);
 140    bcm_update=vc_dispmanx_update_start(0);
 141    bcm_element=vc_dispmanx_element_add(bcm_update,bcm_display,
 142          2,&dst_rect, 0,
 143          &src_rect,DISPMANX_PROTECTION_NONE,0, 0, (DISPMANX_TRANSFORM_T) 0);
 144
 145    vc_dispmanx_update_submit_sync(bcm_update);
 146    static EGL_DISPMANX_WINDOW_T nativewindow;
 147    nativewindow.element=bcm_element;
 148    nativewindow.height=BACKBUFFER_HEIGHT;
 149    nativewindow.width=BACKBUFFER_WIDTH;
 150
 151    egl_surface = eglCreateWindowSurface(egl_display,egl_ourconfig, &nativewindow,NULL );
 152    if (egl_surface==EGL_NO_SURFACE) {
 153            Log::getInstance()->log("OSD", Log::WARN, "Creating egl window surface failed!");
 154            glmutex.unlock();
 155            return 0;
 156    }
 157
 158    if (eglMakeCurrent(egl_display, egl_surface, egl_surface, egl_context)== EGL_FALSE) {
 159            Log::getInstance()->log("OSD", Log::WARN, "Making egl Current failed");
 160            glmutex.unlock();
 161                    return 0;
 162    }
 163    // Test stuff
 164
 165    query_str=(const char*)glGetString(GL_VERSION) ;
 166    if (query_str) Log::getInstance()->logLongString("OSD", Log::NOTICE, query_str);
 167    else Log::getInstance()->log("OSD", Log::WARN, "Could not query display %x",glGetError());
 168
 169    query_str=(const char*)glGetString(GL_VENDOR) ;
 170    if (query_str) Log::getInstance()->logLongString("OSD", Log::NOTICE, query_str);
 171    else Log::getInstance()->log("OSD", Log::WARN, "Could not query display %x",glGetError());
 172
 173    query_str=(const char*)glGetString(GL_RENDERER) ;
 174    if (query_str) Log::getInstance()->logLongString("OSD", Log::NOTICE, query_str);
 175    else Log::getInstance()->log("OSD", Log::WARN, "Could not query display %x",glGetError());
 176
 177    query_str=(const char*)glGetString(GL_EXTENSIONS) ;
 178    if (query_str) Log::getInstance()->logLongString("OSD", Log::NOTICE, query_str);
 179    else Log::getInstance()->log("OSD", Log::WARN, "Could not query display %x",glGetError());
 180
 181
 182
 183
 184   //Now we will create the Screen
 185   screen = (Surface*) new SurfaceOpenGL(Surface::SCREEN);
 186
 187   screen->create(video->getScreenWidth(), video->getScreenHeight());
 188   screen->display();
 189   initted = true; // must set this here or create surface won't work
 190
 191   //glGenBuffers(1, &vB);
 192   //glGenBuffers(1, &iB);
 193
 194   //Preparing the Shaders
 195
 196   if (!osd_shader.init()) {
 197           Log::getInstance()->log("OSD", Log::WARN, "Init Osd Shader failed");
 198           glmutex.unlock();
 199           return 0;
 200   }
 201
 202
 203
 204
 205   glClearColor(0.0f,0.0f,0.0f,1.f);
 206   eglSwapInterval(egl_display, 1 );
 207
 208   eglMakeCurrent(egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT );
 209
 210   if (((VideoOMX*)Video::getInstance())->initUsingOSDObjects()!=1) { //call Video for init opengl stuff
 211           return 0;
 212   }
 213
 214
 215   glmutex.unlock();
 216   threadStart();
 217
 218   return 1;
 219 }
 220
 221 void OsdOpenGL::InitVertexBuffer(float  scalex,float scaley)
 222 {
 223   Video* video=Video::getInstance();
 224   float texx=1.f;
 225   float texy=1.f;
 226   OSDCOLOR osdcolor={1.f,1.f,1.f,1.f};
 227
 228  // osdvertices[0].c=osdcolor;
 229   osdvertices[0].x= (scalex);
 230   osdvertices[0].y=-scaley;
 231   osdvertices[0].z=0.5;
 232   osdvertices[0].u=texx;
 233   osdvertices[0].v=texy;
 234  // osdvertices[1].c=osdcolor;
 235   osdvertices[1].x=(scalex);
 236   osdvertices[1].y=(scaley);
 237   osdvertices[1].z=0.5f;
 238   osdvertices[1].u=texx;
 239   osdvertices[1].v=0.f;
 240   //  osdvertices[0].c=osdcolor;
 241   osdvertices[2].x=(-scalex);
 242   osdvertices[2].y=-scaley;
 243   osdvertices[2].z=0.5f;
 244   osdvertices[2].u=0.f;
 245   osdvertices[2].v=texy;
 246  // osdvertices[3].c=osdcolor;
 247   osdvertices[3].x=-scalex;
 248   osdvertices[3].y=(scaley);
 249   osdvertices[3].z=0.5f;
 250   osdvertices[3].u=0.f;
 251   osdvertices[3].v=0.f;
 252
 253   osdindices[0]=0;
 254   osdindices[1]=1;
 255   osdindices[2]=2;
 256   osdindices[3]=0;
 257   osdindices[4]=2;
 258   osdindices[5]=3;
 259
 260   return;
 261 }
 262
 263 int OsdOpenGL::shutdown()
 264 {
 265   if (!initted) return 0;
 266   glmutex.lock();
 267   initted = false;
 268   threadStop();
 269   delete screen;
 270   screen=NULL;
 271
 272   (((VideoOMX*)Video::getInstance())->shutdownUsingOSDObjects());
 273
 274
 275   osd_shader.deinit();
 276
 277   glClear(GL_COLOR_BUFFER_BIT);
 278   eglSwapBuffers(egl_display, egl_surface);
 279   eglMakeCurrent(egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT );
 280   eglDestroySurface(egl_display,egl_surface);
 281   eglDestroyContext(egl_display,egl_context);
 282   eglTerminate(egl_display );
 283
 284   DISPMANX_UPDATE_HANDLE_T  bcm_update;
 285   bcm_update=vc_dispmanx_update_start(0);
 286
 287   vc_dispmanx_element_remove(bcm_update,bcm_element);
 288   vc_dispmanx_update_submit_sync(bcm_update);
 289   vc_dispmanx_display_close(bcm_display);
 290
 291
 292   return 1;
 293 }
 294
 295 bool OsdOpenGL::screenShot(const char* fileName)
 296 {
 297   BeginPainting();
 298   bool ret = screen->screenShot(fileName);
 299   EndPainting();
 300   return ret;
 301 }
 302
 303 void OsdOpenGL::threadMethod()
 304 {
 305         // We have to claim the gl context for this thread
 306         //glmutex.lock();
 307
 308         //glmutex.unlock();
 309         int ts=0;
 310         while (true)
 311         {
 312                 ts=10;
 313                 unsigned int waittime=10;
 314
 315                 if (initted) {
 316
 317                         long long time1 = getTimeMS();
 318                         if ((time1 - lastrendertime) > 200) {//5 fps for OSD updates are enough, avoids tearing
 319                                 InternalRendering();
 320                                 lastrendertime = getTimeMS();
 321
 322                         }
 323                 }
 324
 325                 threadCheckExit();
 326                 if (ts!=0) {
 327                         struct timespec target_time;
 328                         clock_gettime(CLOCK_REALTIME,&target_time);
 329                         target_time.tv_nsec+=1000000LL*ts;
 330                         if (target_time.tv_nsec>999999999) {
 331                                 target_time.tv_nsec-=1000000000L;
 332                                 target_time.tv_sec+=1;
 333                         }
 334                         threadWaitForSignalTimed(&target_time);
 335                 }
 336                 //Sleep(1);
 337         }
 338         //eglMakeCurrent(egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT );
 339 }
 340
 341 void OsdOpenGL::InternalRendering(){
 342
 343     BeginPainting();
 344
 345
 346
 347
 348         //InitVertexBuffer(display_width,display_height);
 349     InitVertexBuffer(1.f,1.f);
 350
 351
 352         glViewport(0, 0, BACKBUFFER_WIDTH ,BACKBUFFER_HEIGHT);
 353
 354         glClearColor(0.0f,0.0f,0.0f,1.f);
 355         glClear(GL_COLOR_BUFFER_BIT);
 356
 357         osd_shader.PrepareRendering(((SurfaceOpenGL*)screen)->getTexture());
 358
 359         glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE,sizeof(OSDVERTEX), osdvertices);
 360         glEnableVertexAttribArray(0);
 361         glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE,sizeof(OSDVERTEX), &(osdvertices[0].u));
 362         glEnableVertexAttribArray(1);
 363
 364
 365
 366         glDisable(GL_BLEND);
 367
 368
 369
 370         glDrawArrays(GL_TRIANGLE_STRIP, 0,  4);
 371
 372
 373
 374         //Show it to the user!
 375         eglSwapBuffers(egl_display, egl_surface);
 376
 377         EndPainting();
 378
 379 #ifdef BENCHMARK_FPS
 380         num_benchmark_frames++;
 381         if (getTimeMS()-last_benchmark_time>4000) {
 382                 float fps=1000./(float)(getTimeMS()-last_benchmark_time);
 383                 fps*=((float)num_benchmark_frames);
 384                 num_benchmark_frames=0;
 385                 Log::getInstance()->log("OSD", Log::NOTICE, "Current FPS %g", fps);
 386                 last_benchmark_time=getTimeMS();
 387
 388         }
 389
 390 #endif
 391
 392
 393
 394 }
 395
 396
 397
 398
 399 void OsdOpenGL::BeginPainting() {//We synchronize calls to d3d between different threads
 400         glmutex.lock();
 401         if (initted) {
 402                 if (eglMakeCurrent(egl_display, egl_surface, egl_surface, egl_context)== EGL_FALSE) {
 403                         Log::getInstance()->log("OSD", Log::WARN, "Making egl Current failed in thread %d",eglGetError());
 404                         return;
 405                 }
 406         }
 407 }
 408
 409 void OsdOpenGL::EndPainting() {
 410         eglMakeCurrent(egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT );
 411         glmutex.unlock();
 412 }
 413
 414
 415
 416 void OsdOpenGL::Blank() {
 417         BeginPainting();
 418         glClearColor(0.15f, 1.f, 0.35f, 1.0f); // change this to black after testing
 419         glClear( GL_COLOR_BUFFER_BIT );
 420         glClear( GL_DEPTH_BUFFER_BIT );
 421         EndPainting();
 422 }