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, write to the Free Software
  18     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19 */
  20
  21 #include "osdopengl.h"
  22 #include "videoomx.h"
  23 #include "surfaceopengl.h"
  24
  25 #include "message.h"
  26 #include "command.h"
  27
  28 #define  BACKBUFFER_WIDTH 1280
  29 #define  BACKBUFFER_HEIGHT 720
  30
  31 OsdOpenGL::OsdOpenGL()
  32 {
  33   glmutex.Lock();
  34
  35   external_driving=false;
  36
  37   lastrendertime=getTimeMS();
  38   display_height=0;
  39   display_width=0;
  40   mode=0;
  41
  42 #ifdef BENCHMARK_FPS
  43         last_benchmark_time=getTimeMS();
  44         num_benchmark_frames=0;
  45 #endif
  46
  47
  48 }
  49
  50 OsdOpenGL::~OsdOpenGL()
  51 {
  52
  53   if (initted)
  54   {
  55           threadStop();
  56                 shutdown();
  57   }
  58
  59
  60   glmutex.Unlock();
  61 }
  62
  63 int OsdOpenGL::getFD()
  64 {
  65   if (!initted) return 0;
  66   return fdOsd;
  67 }
  68
  69 Surface * OsdOpenGL::createNewSurface() {
  70         return (Surface*)new SurfaceOpenGL();
  71 }
  72
  73 int OsdOpenGL::init()
  74 {
  75   if (initted) return 0;
  76   Video* video = Video::getInstance();
  77
  78    //init broadcom chipset (Move to video?)
  79
  80
  81    //First get connection to egl
  82    egl_display=eglGetDisplay(EGL_DEFAULT_DISPLAY);
  83
  84    if (egl_display==EGL_NO_DISPLAY) {
  85            Log::getInstance()->log("OSD", Log::WARN, "Could not get egl display! %x",eglGetError());
  86            glmutex.Unlock();
  87            return 0;
  88    }
  89
  90
  91
  92    if (eglInitialize(egl_display, NULL, NULL)==EGL_FALSE) {
  93            Log::getInstance()->log("OSD", Log::WARN, "Initialising display failed! %x",eglGetError());
  94            glmutex.Unlock();
  95            return 0;
  96    }
  97
  98    const char *query_str=eglQueryString(egl_display,EGL_CLIENT_APIS);
  99    if (query_str) Log::getInstance()->logLongString("OSD", Log::NOTICE, query_str);
 100    else Log::getInstance()->log("OSD", Log::WARN, "Could not query display %x",eglGetError());
 101    query_str=eglQueryString(egl_display,EGL_EXTENSIONS);
 102    if (query_str)    Log::getInstance()->logLongString("OSD", Log::NOTICE, query_str);
 103    else Log::getInstance()->log("OSD", Log::WARN, "Could not query display %x",eglGetError());
 104
 105    const EGLint attributs[]={
 106                  EGL_RED_SIZE,8,EGL_GREEN_SIZE, 8,EGL_BLUE_SIZE, 8,EGL_ALPHA_SIZE, 8,
 107          EGL_SURFACE_TYPE, EGL_WINDOW_BIT|EGL_PBUFFER_BIT,
 108          EGL_CONFORMANT, EGL_OPENGL_ES2_BIT,
 109          EGL_NONE
 110    }; // Here, we might have to select the resolution!
 111
 112
 113    EGLint number;
 114
 115    if (eglChooseConfig(egl_display, attributs, &egl_ourconfig, 1, &number)==EGL_FALSE) {
 116            Log::getInstance()->log("OSD", Log::WARN, "Choosing egl config failed! %x",eglGetError());
 117            glmutex.Unlock();
 118            return 0;
 119    }
 120
 121    const EGLint attr_context[]={
 122                    EGL_CONTEXT_CLIENT_VERSION,2,
 123           EGL_NONE
 124       };
 125
 126    egl_context=eglCreateContext(egl_display,egl_ourconfig,EGL_NO_CONTEXT,attr_context);
 127    if (egl_context==EGL_NO_CONTEXT) {
 128            Log::getInstance()->log("OSD", Log::WARN, "Creating egl context failed! %x",eglGetError());
 129            glmutex.Unlock();
 130            return 0;
 131    }
 132
 133    // warning broadcom specific, get display size!
 134    display_width=display_height=0;
 135    if (graphics_get_display_size(0, &display_width, &display_height)<0) {
 136            Log::getInstance()->log("OSD", Log::WARN, "Getting display size failed! (BCM API) ");
 137            glmutex.Unlock();
 138            return 0;
 139    }
 140    Log::getInstance()->log("OSD", Log::NOTICE, "Displaysize is %d x %d ",display_width, display_height);
 141    VC_RECT_T dst_rect ={0,0,display_width,display_height};
 142    VC_RECT_T src_rect={0,0,BACKBUFFER_WIDTH <<16,BACKBUFFER_HEIGHT<<16};
 143
 144   DISPMANX_UPDATE_HANDLE_T  bcm_update;
 145
 146    bcm_display=vc_dispmanx_display_open(0);
 147    bcm_update=vc_dispmanx_update_start(0);
 148    bcm_element=vc_dispmanx_element_add(bcm_update,bcm_display,
 149          2,&dst_rect, 0,
 150          &src_rect,DISPMANX_PROTECTION_NONE,0, 0, (DISPMANX_TRANSFORM_T) 0);
 151
 152    vc_dispmanx_update_submit_sync(bcm_update);
 153    static EGL_DISPMANX_WINDOW_T nativewindow;
 154    nativewindow.element=bcm_element;
 155    nativewindow.height=BACKBUFFER_HEIGHT;
 156    nativewindow.width=BACKBUFFER_WIDTH;
 157
 158    egl_surface = eglCreateWindowSurface(egl_display,egl_ourconfig, &nativewindow,NULL );
 159    if (egl_surface==EGL_NO_SURFACE) {
 160            Log::getInstance()->log("OSD", Log::WARN, "Creating egl window surface failed!");
 161            glmutex.Unlock();
 162            return 0;
 163    }
 164
 165    if (eglMakeCurrent(egl_display, egl_surface, egl_surface, egl_context)== EGL_FALSE) {
 166            Log::getInstance()->log("OSD", Log::WARN, "Making egl Current failed");
 167            glmutex.Unlock();
 168                    return 0;
 169    }
 170    // Test stuff
 171
 172    query_str=(const char*)glGetString(GL_VERSION) ;
 173    if (query_str) Log::getInstance()->logLongString("OSD", Log::NOTICE, query_str);
 174    else Log::getInstance()->log("OSD", Log::WARN, "Could not query display %x",glGetError());
 175
 176    query_str=(const char*)glGetString(GL_VENDOR) ;
 177    if (query_str) Log::getInstance()->logLongString("OSD", Log::NOTICE, query_str);
 178    else Log::getInstance()->log("OSD", Log::WARN, "Could not query display %x",glGetError());
 179
 180    query_str=(const char*)glGetString(GL_RENDERER) ;
 181    if (query_str) Log::getInstance()->logLongString("OSD", Log::NOTICE, query_str);
 182    else Log::getInstance()->log("OSD", Log::WARN, "Could not query display %x",glGetError());
 183
 184    query_str=(const char*)glGetString(GL_EXTENSIONS) ;
 185    if (query_str) Log::getInstance()->logLongString("OSD", Log::NOTICE, query_str);
 186    else Log::getInstance()->log("OSD", Log::WARN, "Could not query display %x",glGetError());
 187
 188
 189
 190
 191   //Now we will create the Screen
 192   screen = (Surface*) new SurfaceOpenGL(Surface::SCREEN);
 193
 194   screen->create(video->getScreenWidth(), video->getScreenHeight());
 195   screen->display();
 196   initted = 1; // must set this here or create surface won't work
 197
 198   //glGenBuffers(1, &vB);
 199   //glGenBuffers(1, &iB);
 200
 201   //Preparing the Shaders
 202
 203   if (!osd_shader.init()) {
 204           Log::getInstance()->log("OSD", Log::WARN, "Init Osd Shader failed");
 205           glmutex.Unlock();
 206           return 0;
 207   }
 208
 209
 210
 211
 212   glClearColor(0.0f,0.0f,0.0f,1.f);
 213   eglSwapInterval(egl_display, 1 );
 214
 215   eglMakeCurrent(egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT );
 216
 217   if (((VideoOMX*)Video::getInstance())->initUsingOSDObjects()!=1) { //call Video for init opengl stuff
 218           return 0;
 219   }
 220
 221
 222   glmutex.Unlock();
 223   threadStart();
 224
 225   return 1;
 226 }
 227
 228 void OsdOpenGL::InitVertexBuffer(float  scalex,float scaley)
 229 {
 230   Video* video=Video::getInstance();
 231   float texx=1.f;
 232   float texy=1.f;
 233   OSDCOLOR osdcolor={1.f,1.f,1.f,1.f};
 234
 235  // osdvertices[0].c=osdcolor;
 236   osdvertices[0].x= (scalex);
 237   osdvertices[0].y=-scaley;
 238   osdvertices[0].z=0.5;
 239   osdvertices[0].u=texx;
 240   osdvertices[0].v=texy;
 241  // osdvertices[1].c=osdcolor;
 242   osdvertices[1].x=(scalex);
 243   osdvertices[1].y=(scaley);
 244   osdvertices[1].z=0.5f;
 245   osdvertices[1].u=texx;
 246   osdvertices[1].v=0.f;
 247   //  osdvertices[0].c=osdcolor;
 248   osdvertices[2].x=(-scalex);
 249   osdvertices[2].y=-scaley;
 250   osdvertices[2].z=0.5f;
 251   osdvertices[2].u=0.f;
 252   osdvertices[2].v=texy;
 253  // osdvertices[3].c=osdcolor;
 254   osdvertices[3].x=-scalex;
 255   osdvertices[3].y=(scaley);
 256   osdvertices[3].z=0.5f;
 257   osdvertices[3].u=0.f;
 258   osdvertices[3].v=0.f;
 259
 260   osdindices[0]=0;
 261   osdindices[1]=1;
 262   osdindices[2]=2;
 263   osdindices[3]=0;
 264   osdindices[4]=2;
 265   osdindices[5]=3;
 266
 267   return;
 268 }
 269
 270 int OsdOpenGL::shutdown()
 271 {
 272   if (!initted) return 0;
 273   glmutex.Lock();
 274   initted = 0;
 275   threadStop();
 276   delete screen;
 277   screen=NULL;
 278
 279   (((VideoOMX*)Video::getInstance())->shutdownUsingOSDObjects());
 280
 281
 282   osd_shader.deinit();
 283
 284   glClear(GL_COLOR_BUFFER_BIT);
 285   eglSwapBuffers(egl_display, egl_surface);
 286   eglMakeCurrent(egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT );
 287   eglDestroySurface(egl_display,egl_surface);
 288   eglDestroyContext(egl_display,egl_context);
 289   eglTerminate(egl_display );
 290
 291   DISPMANX_UPDATE_HANDLE_T  bcm_update;
 292   bcm_update=vc_dispmanx_update_start(0);
 293
 294   vc_dispmanx_element_remove(bcm_update,bcm_element);
 295   vc_dispmanx_update_submit_sync(bcm_update);
 296   vc_dispmanx_display_close(bcm_display);
 297
 298
 299   return 1;
 300 }
 301
 302 void OsdOpenGL::screenShot(const char* fileName)
 303 {
 304   BeginPainting();
 305   screen->screenShot(fileName);
 306   EndPainting();
 307 }
 308
 309 void OsdOpenGL::threadMethod()
 310 {
 311         // We have to claim the gl context for this thread
 312         //glmutex.Lock();
 313
 314         //glmutex.Unlock();
 315         int ts=0;
 316         while (true)
 317         {
 318                 ts=10;
 319                 unsigned int waittime=10;
 320
 321                 if (initted) {
 322
 323                         long long time1 = getTimeMS();
 324                         if ((time1 - lastrendertime) > 200) {//5 fps for OSD updates are enough, avoids tearing
 325                                 InternalRendering();
 326                                 lastrendertime = getTimeMS();
 327
 328                         }
 329                 }
 330
 331                 threadCheckExit();
 332                 if (ts!=0) {
 333                         struct timespec target_time;
 334                         clock_gettime(CLOCK_REALTIME,&target_time);
 335                         target_time.tv_nsec+=1000000LL*ts;
 336                         if (target_time.tv_nsec>999999999) {
 337                                 target_time.tv_nsec-=1000000000L;
 338                                 target_time.tv_sec+=1;
 339                         }
 340                         threadWaitForSignalTimed(&target_time);
 341                 }
 342                 //Sleep(1);
 343         }
 344         //eglMakeCurrent(egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT );
 345 }
 346
 347 void OsdOpenGL::InternalRendering(){
 348
 349     BeginPainting();
 350
 351
 352
 353
 354         //InitVertexBuffer(display_width,display_height);
 355     InitVertexBuffer(1.f,1.f);
 356
 357
 358         glViewport(0, 0, BACKBUFFER_WIDTH ,BACKBUFFER_HEIGHT);
 359
 360         glClearColor(0.0f,0.0f,0.0f,1.f);
 361         glClear(GL_COLOR_BUFFER_BIT);
 362
 363         osd_shader.PrepareRendering(((SurfaceOpenGL*)screen)->getTexture());
 364
 365         glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE,sizeof(OSDVERTEX), osdvertices);
 366         glEnableVertexAttribArray(0);
 367         glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE,sizeof(OSDVERTEX), &(osdvertices[0].u));
 368         glEnableVertexAttribArray(1);
 369
 370
 371
 372         glDisable(GL_BLEND);
 373
 374
 375
 376         glDrawArrays(GL_TRIANGLE_STRIP, 0,  4);
 377
 378
 379
 380         //Show it to the user!
 381         eglSwapBuffers(egl_display, egl_surface);
 382
 383         EndPainting();
 384
 385 #ifdef BENCHMARK_FPS
 386         num_benchmark_frames++;
 387         if (getTimeMS()-last_benchmark_time>4000) {
 388                 float fps=1000./(float)(getTimeMS()-last_benchmark_time);
 389                 fps*=((float)num_benchmark_frames);
 390                 num_benchmark_frames=0;
 391                 Log::getInstance()->log("OSD", Log::NOTICE, "Current FPS %g", fps);
 392                 last_benchmark_time=getTimeMS();
 393
 394         }
 395
 396 #endif
 397
 398
 399
 400 }
 401
 402
 403
 404
 405 void OsdOpenGL::BeginPainting() {//We synchronize calls to d3d between different threads
 406         glmutex.Lock();
 407         if (initted) {
 408                 if (eglMakeCurrent(egl_display, egl_surface, egl_surface, egl_context)== EGL_FALSE) {
 409                         Log::getInstance()->log("OSD", Log::WARN, "Making egl Current failed in thread %d",eglGetError());
 410                         return;
 411                 }
 412         }
 413 }
 414
 415 void OsdOpenGL::EndPainting() {
 416         eglMakeCurrent(egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT );
 417         glmutex.Unlock();
 418 }
 419
 420
 421
 422 void OsdOpenGL::Blank() {
 423         BeginPainting();
 424         glClearColor(0.15f, 1.f, 0.35f, 1.0f); // change this to black after testing
 425         glClear( GL_COLOR_BUFFER_BIT );
 426         glClear( GL_DEPTH_BUFFER_BIT );
 427         EndPainting();
 428 }