git.sesse.net Git - vlc/blob - plugins/beos/vout_beos.cpp

   1 /*****************************************************************************
   2  * vout_beos.cpp: beos video output display method
   3  *****************************************************************************
   4  * Copyright (C) 2000, 2001 VideoLAN
   5  * $Id: vout_beos.cpp,v 1.60 2002/06/01 12:31:58 sam Exp $
   6  *
   7  * Authors: Jean-Marc Dressler <polux@via.ecp.fr>
   8  *          Samuel Hocevar <sam@zoy.org>
   9  *          Tony Castley <tcastley@mail.powerup.com.au>
  10  *          Richard Shepherd <richard@rshepherd.demon.co.uk>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  25  *****************************************************************************/
  26
  27 /*****************************************************************************
  28  * Preamble
  29  *****************************************************************************/
  30 #include <errno.h>                                                 /* ENOMEM */
  31 #include <stdlib.h>                                                /* free() */
  32 #include <stdio.h>
  33 #include <string.h>                                            /* strerror() */
  34 #include <InterfaceKit.h>
  35 #include <DirectWindow.h>
  36 #include <Application.h>
  37 #include <Bitmap.h>
  38
  39 #include <vlc/vlc.h>
  40 #include <vlc/intf.h>
  41 #include <vlc/vout.h>
  42
  43 #include "VideoWindow.h"
  44 #include "DrawingTidbits.h"
  45
  46 /*****************************************************************************
  47  * vout_sys_t: BeOS video output method descriptor
  48  *****************************************************************************
  49  * This structure is part of the video output thread descriptor.
  50  * It describes the BeOS specific properties of an output thread.
  51  *****************************************************************************/
  52 struct vout_sys_s
  53 {
  54     VideoWindow *  p_window;
  55
  56     s32 i_width;
  57     s32 i_height;
  58
  59     u8 *pp_buffer[3];
  60     int i_index;
  61 };
  62
  63 /*****************************************************************************
  64  * beos_GetAppWindow : retrieve a BWindow pointer from the window name
  65  *****************************************************************************/
  66 BWindow *beos_GetAppWindow(char *name)
  67 {
  68     int32       index;
  69     BWindow     *window;
  70
  71     for (index = 0 ; ; index++)
  72     {
  73         window = be_app->WindowAt(index);
  74         if (window == NULL)
  75             break;
  76         if (window->LockWithTimeout(20000) == B_OK)
  77         {
  78             if (strcmp(window->Name(), name) == 0)
  79             {
  80                 window->Unlock();
  81                 break;
  82             }
  83             window->Unlock();
  84         }
  85     }
  86     return window;
  87 }
  88
  89 /****************************************************************************
  90  * DrawingThread : thread that really does the drawing
  91  ****************************************************************************/
  92 int32 Draw(void *data)
  93 {
  94     VideoWindow* p_win;
  95     p_win = (VideoWindow *) data;
  96
  97     if ( p_win->LockWithTimeout(50000) == B_OK )
  98     {
  99         if (p_win->vsync)
 100         {
 101             BScreen *screen;
 102             screen = new BScreen(p_win);
 103             screen-> WaitForRetrace(22000);
 104             delete screen;
 105         }
 106         if (p_win-> mode == OVERLAY)
 107         {
 108             rgb_color key;
 109             p_win-> view->SetViewOverlay(p_win-> bitmap[p_win-> i_buffer],
 110                                          p_win-> bitmap[p_win-> i_buffer]->Bounds() ,
 111                                          p_win-> view->Bounds(),
 112                                          &key, B_FOLLOW_ALL,
 113                                                  B_OVERLAY_FILTER_HORIZONTAL|B_OVERLAY_FILTER_VERTICAL|
 114                                                  B_OVERLAY_TRANSFER_CHANNEL);
 115                     p_win-> view->SetViewColor(key);
 116         }
 117         else
 118         {
 119             p_win-> view-> DrawBitmap( p_win-> bitmap[p_win-> i_buffer],
 120                                        p_win-> view->Bounds() );
 121         }
 122         p_win-> Unlock();
 123     }
 124     return B_OK;
 125 }
 126
 127 /*****************************************************************************
 128  * VideoWindow constructor and destructor
 129  *****************************************************************************/
 130 VideoWindow::VideoWindow( int v_width, int v_height,
 131                           BRect frame )
 132             : BWindow( frame, NULL, B_TITLED_WINDOW,
 133                     B_NOT_CLOSABLE | B_NOT_MINIMIZABLE )
 134 {
 135     BView *mainView =  new BView( Bounds(), "mainView",
 136                                   B_FOLLOW_ALL, B_FULL_UPDATE_ON_RESIZE);
 137     AddChild(mainView);
 138     mainView->SetViewColor(kBlack);
 139
 140     /* create the view to do the display */
 141     view = new VLCView( Bounds() );
 142     mainView->AddChild(view);
 143
 144     /* set the VideoWindow variables */
 145     teardownwindow = false;
 146     is_zoomed = false;
 147     i_buffer = 0;
 148
 149     /* call ScreenChanged to set vsync correctly */
 150     BScreen *screen;
 151     display_mode disp_mode;
 152     float refresh;
 153
 154     screen = new BScreen(this);
 155
 156     screen-> GetMode(&disp_mode);
 157     refresh =
 158          (disp_mode.timing.pixel_clock * 1000)/((disp_mode.timing.h_total)*
 159          (disp_mode.timing.v_total));
 160     if (refresh  < 61)
 161     {
 162         vsync = true;
 163     }
 164     delete screen;
 165
 166     // remember current settings
 167     i_width = frame.IntegerWidth();
 168     i_height = frame.IntegerHeight();
 169     FrameResized(frame.IntegerWidth(), frame.IntegerHeight());
 170
 171     mode = SelectDrawingMode(v_width, v_height);
 172     Show();
 173 }
 174
 175 VideoWindow::~VideoWindow()
 176 {
 177     int32 result;
 178
 179     teardownwindow = true;
 180     wait_for_thread(fDrawThreadID, &result);
 181     delete bitmap[0];
 182     delete bitmap[1];
 183     delete bitmap[2];
 184 }
 185
 186 bool VideoWindow::QuitRequested()
 187 {
 188     return true;
 189 }
 190
 191 void VideoWindow::drawBuffer(int bufferIndex)
 192 {
 193     status_t status;
 194
 195     i_buffer = bufferIndex;
 196     // sync to the screen if required
 197     if (vsync)
 198     {
 199         BScreen *screen;
 200         screen = new BScreen(this);
 201         screen-> WaitForRetrace(22000);
 202         delete screen;
 203     }
 204     if (LockLooper())
 205     {
 206        // switch the overlay bitmap
 207        if (mode == OVERLAY)
 208        {
 209           rgb_color key;
 210           view->SetViewOverlay(bitmap[i_buffer],
 211                             bitmap[i_buffer]->Bounds() ,
 212                             view->Bounds(),
 213                             &key, B_FOLLOW_ALL,
 214                                     B_OVERLAY_FILTER_HORIZONTAL|B_OVERLAY_FILTER_VERTICAL|
 215                                     B_OVERLAY_TRANSFER_CHANNEL);
 216                    //view->SetViewColor(key);
 217            }
 218        else
 219        {
 220          // switch the bitmap
 221          view-> DrawBitmap(bitmap[i_buffer], view->Bounds() );
 222        }
 223        UnlockLooper();
 224     }
 225 }
 226
 227 void VideoWindow::Zoom(BPoint origin, float width, float height )
 228 {
 229     if(is_zoomed)
 230     {
 231         is_zoomed = !is_zoomed;
 232         MoveTo(winSize.left, winSize.top);
 233         ResizeTo(winSize.IntegerWidth(), winSize.IntegerHeight());
 234         be_app->ShowCursor();
 235     }
 236     else
 237     {
 238         is_zoomed = !is_zoomed;
 239         BScreen *screen;
 240         screen = new BScreen(this);
 241         BRect rect = screen->Frame();
 242         delete screen;
 243         MoveTo(0,0);
 244         ResizeTo(rect.IntegerWidth(), rect.IntegerHeight());
 245         be_app->ObscureCursor();
 246     }
 247 }
 248
 249 void VideoWindow::FrameMoved(BPoint origin)
 250 {
 251         if (is_zoomed) return ;
 252     winSize = Frame();
 253 }
 254
 255 void VideoWindow::FrameResized( float width, float height )
 256 {
 257     float out_width, out_height;
 258     float out_left, out_top;
 259     float width_scale = width / i_width;
 260     float height_scale = height / i_height;
 261
 262     if (width_scale <= height_scale)
 263     {
 264         out_width = (i_width * width_scale);
 265         out_height = (i_height * width_scale);
 266         out_left = 0;
 267         out_top = (height - out_height) / 2;
 268     }
 269     else   /* if the height is proportionally smaller */
 270     {
 271         out_width = (i_width * height_scale);
 272         out_height = (i_height * height_scale);
 273         out_top = 0;
 274         out_left = (width - out_width) /2;
 275     }
 276     view->MoveTo(out_left,out_top);
 277     view->ResizeTo(out_width, out_height);
 278         if (!is_zoomed)
 279         {
 280         winSize = Frame();
 281     }
 282 }
 283
 284 void VideoWindow::ScreenChanged(BRect frame, color_space mode)
 285 {
 286     BScreen *screen;
 287     float refresh;
 288
 289     screen = new BScreen(this);
 290     display_mode disp_mode;
 291
 292     screen-> GetMode(&disp_mode);
 293     refresh =
 294          (disp_mode.timing.pixel_clock * 1000)/((disp_mode.timing.h_total)*
 295          (disp_mode.timing.v_total));
 296     if (refresh  < 61)
 297     {
 298         vsync = true;
 299     }
 300     rgb_color key;
 301     view->SetViewOverlay(bitmap[i_buffer],
 302                          bitmap[i_buffer]->Bounds() ,
 303                          view->Bounds(),
 304                          &key, B_FOLLOW_ALL,
 305                          B_OVERLAY_FILTER_HORIZONTAL|B_OVERLAY_FILTER_VERTICAL);
 306     view->SetViewColor(key);
 307 }
 308
 309 void VideoWindow::WindowActivated(bool active)
 310 {
 311 }
 312
 313 int VideoWindow::SelectDrawingMode(int width, int height)
 314 {
 315     int drawingMode = BITMAP;
 316
 317     int noOverlay = !config_GetInt( p_vout, "overlay" );
 318     for (int i = 0; i < COLOR_COUNT; i++)
 319     {
 320         if (noOverlay) break;
 321         bitmap[0] = new BBitmap ( BRect( 0, 0, width, height ),
 322                                   B_BITMAP_WILL_OVERLAY,
 323                                   colspace[i].colspace);
 324
 325         if(bitmap[0] && bitmap[0]->InitCheck() == B_OK)
 326         {
 327             colspace_index = i;
 328
 329             bitmap[1] = new BBitmap( BRect( 0, 0, width, height ), B_BITMAP_WILL_OVERLAY,
 330                                      colspace[colspace_index].colspace);
 331             bitmap[2] = new BBitmap( BRect( 0, 0, width, height ), B_BITMAP_WILL_OVERLAY,
 332                                      colspace[colspace_index].colspace);
 333             if ( (bitmap[2] && bitmap[2]->InitCheck() == B_OK) )
 334             {
 335                drawingMode = OVERLAY;
 336                rgb_color key;
 337                view->SetViewOverlay(bitmap[0],
 338                                     bitmap[0]->Bounds() ,
 339                                     view->Bounds(),
 340                                     &key, B_FOLLOW_ALL,
 341                                             B_OVERLAY_FILTER_HORIZONTAL|B_OVERLAY_FILTER_VERTICAL);
 342                        view->SetViewColor(key);
 343                SetTitle(VOUT_TITLE " (Overlay)");
 344                break;
 345             }
 346             else
 347             {
 348                delete bitmap[0];
 349                delete bitmap[1];
 350                delete bitmap[2];
 351             }
 352         }
 353         else
 354         {
 355             delete bitmap[0];
 356         }
 357         }
 358
 359     if (drawingMode == BITMAP)
 360         {
 361         // fallback to RGB32
 362         colspace_index = DEFAULT_COL;
 363         SetTitle(VOUT_TITLE " (Bitmap)");
 364         bitmap[0] = new BBitmap( BRect( 0, 0, width, height ), colspace[colspace_index].colspace);
 365         bitmap[1] = new BBitmap( BRect( 0, 0, width, height ), colspace[colspace_index].colspace);
 366         bitmap[2] = new BBitmap( BRect( 0, 0, width, height ), colspace[colspace_index].colspace);
 367     }
 368     return drawingMode;
 369 }
 370
 371 /*****************************************************************************
 372  * VLCView::VLCView
 373  *****************************************************************************/
 374 VLCView::VLCView(BRect bounds) : BView(bounds, "", B_FOLLOW_NONE,
 375                                        B_WILL_DRAW)
 376
 377 {
 378     SetViewColor(B_TRANSPARENT_32_BIT);
 379 }
 380
 381 /*****************************************************************************
 382  * VLCView::~VLCView
 383  *****************************************************************************/
 384 VLCView::~VLCView()
 385 {
 386 }
 387
 388 /*****************************************************************************
 389  * VLCVIew::MouseDown
 390  *****************************************************************************/
 391 void VLCView::MouseDown(BPoint point)
 392 {
 393     BWindow *win = Window();
 394     win->Zoom();
 395 }
 396
 397 /*****************************************************************************
 398  * VLCVIew::Draw
 399  *****************************************************************************/
 400 void VLCView::Draw(BRect updateRect)
 401 {
 402     VideoWindow *win = (VideoWindow *) Window();
 403     if (win->mode == BITMAP)
 404       FillRect(updateRect);
 405 }
 406
 407
 408 extern "C"
 409 {
 410
 411 /*****************************************************************************
 412  * Local prototypes
 413  *****************************************************************************/
 414 static int  vout_Create     ( vout_thread_t * );
 415 static int  vout_Init       ( vout_thread_t * );
 416 static void vout_End        ( vout_thread_t * );
 417 static void vout_Destroy    ( vout_thread_t * );
 418 static int  vout_Manage     ( vout_thread_t * );
 419 static void vout_Display    ( vout_thread_t *, picture_t * );
 420 static void vout_Render     ( vout_thread_t *, picture_t * );
 421
 422 static int  BeosOpenDisplay ( vout_thread_t *p_vout );
 423 static void BeosCloseDisplay( vout_thread_t *p_vout );
 424
 425 /*****************************************************************************
 426  * Functions exported as capabilities. They are declared as static so that
 427  * we don't pollute the namespace too much.
 428  *****************************************************************************/
 429 void _M( vout_getfunctions )( function_list_t * p_function_list )
 430 {
 431     p_function_list->functions.vout.pf_create     = vout_Create;
 432     p_function_list->functions.vout.pf_init       = vout_Init;
 433     p_function_list->functions.vout.pf_end        = vout_End;
 434     p_function_list->functions.vout.pf_destroy    = vout_Destroy;
 435     p_function_list->functions.vout.pf_manage     = vout_Manage;
 436     p_function_list->functions.vout.pf_display    = vout_Display;
 437     p_function_list->functions.vout.pf_render     = vout_Render;
 438 }
 439
 440 /*****************************************************************************
 441  * vout_Create: allocates BeOS video thread output method
 442  *****************************************************************************
 443  * This function allocates and initializes a BeOS vout method.
 444  *****************************************************************************/
 445 int vout_Create( vout_thread_t *p_vout )
 446 {
 447     /* Allocate structure */
 448     p_vout->p_sys = (vout_sys_t*) malloc( sizeof( vout_sys_t ) );
 449     if( p_vout->p_sys == NULL )
 450     {
 451         msg_Err( p_vout, "out of memory" );
 452         return( 1 );
 453     }
 454     p_vout->p_sys->i_width = p_vout->render.i_width;
 455     p_vout->p_sys->i_height = p_vout->render.i_height;
 456
 457     return( 0 );
 458 }
 459
 460 /*****************************************************************************
 461  * vout_Init: initialize BeOS video thread output method
 462  *****************************************************************************/
 463 int vout_Init( vout_thread_t *p_vout )
 464 {
 465     int i_index;
 466     picture_t *p_pic;
 467
 468     I_OUTPUTPICTURES = 0;
 469
 470     /* Open and initialize device */
 471     if( BeosOpenDisplay( p_vout ) )
 472     {
 473         msg_Err( p_vout, "cannot open display" );
 474         return 0;
 475     }
 476     /* Set the buffers */
 477     p_vout->p_sys->pp_buffer[0] = (u8*)p_vout->p_sys->p_window->bitmap[0]->Bits();
 478     p_vout->p_sys->pp_buffer[1] = (u8*)p_vout->p_sys->p_window->bitmap[1]->Bits();
 479     p_vout->p_sys->pp_buffer[2] = (u8*)p_vout->p_sys->p_window->bitmap[2]->Bits();
 480     p_vout->output.i_width  = p_vout->render.i_width;
 481     p_vout->output.i_height = p_vout->render.i_height;
 482
 483     /* Assume we have square pixels */
 484     p_vout->output.i_aspect = p_vout->p_sys->i_width
 485                                * VOUT_ASPECT_FACTOR / p_vout->p_sys->i_height;
 486     p_vout->output.i_chroma = colspace[p_vout->p_sys->p_window->colspace_index].chroma;
 487     p_vout->p_sys->i_index = 0;
 488
 489     p_vout->output.i_rmask  = 0x00ff0000;
 490     p_vout->output.i_gmask  = 0x0000ff00;
 491     p_vout->output.i_bmask  = 0x000000ff;
 492
 493     for (int buffer_index = 0 ; buffer_index < 3; buffer_index++)
 494     {
 495        p_pic = NULL;
 496        /* Find an empty picture slot */
 497        for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 498        {
 499            p_pic = NULL;
 500            if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 501            {
 502                p_pic = p_vout->p_picture + i_index;
 503                break;
 504            }
 505        }
 506
 507        if( p_pic == NULL )
 508        {
 509            return 0;
 510        }
 511        p_pic->p->p_pixels = p_vout->p_sys->pp_buffer[0];
 512        p_pic->p->i_lines = p_vout->p_sys->i_height;
 513
 514        p_pic->p->i_pixel_bytes = colspace[p_vout->p_sys->p_window->colspace_index].pixel_bytes;
 515        p_pic->i_planes = colspace[p_vout->p_sys->p_window->colspace_index].planes;
 516        p_pic->p->i_pitch = p_vout->p_sys->p_window->bitmap[0]->BytesPerRow();
 517
 518        if (p_vout->p_sys->p_window->mode == OVERLAY)
 519        {
 520           p_pic->p->i_visible_bytes = (p_vout->p_sys->p_window->bitmap[0]->Bounds().IntegerWidth()+1)
 521                                      * p_pic->p->i_pixel_bytes;
 522           p_pic->p->b_margin = 1;
 523           p_pic->p->b_hidden = 0;
 524        }
 525        else
 526        {
 527           p_pic->p->b_margin = 0;
 528           p_pic->p->i_visible_bytes = p_pic->p->i_pitch;
 529        }
 530
 531        p_pic->i_status = DESTROYED_PICTURE;
 532        p_pic->i_type   = DIRECT_PICTURE;
 533
 534        PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 535
 536        I_OUTPUTPICTURES++;
 537     }
 538
 539     return( 0 );
 540 }
 541
 542 /*****************************************************************************
 543  * vout_End: terminate BeOS video thread output method
 544  *****************************************************************************/
 545 void vout_End( vout_thread_t *p_vout )
 546 {
 547     BeosCloseDisplay( p_vout );
 548 }
 549
 550 /*****************************************************************************
 551  * vout_Destroy: destroy BeOS video thread output method
 552  *****************************************************************************
 553  * Terminate an output method created by DummyCreateOutputMethod
 554  *****************************************************************************/
 555 void vout_Destroy( vout_thread_t *p_vout )
 556 {
 557     free( p_vout->p_sys );
 558 }
 559
 560 /*****************************************************************************
 561  * vout_Manage: handle BeOS events
 562  *****************************************************************************
 563  * This function should be called regularly by video output thread. It manages
 564  * console events. It returns a non null value on error.
 565  *****************************************************************************/
 566 int vout_Manage( vout_thread_t *p_vout )
 567 {
 568
 569     return( 0 );
 570 }
 571
 572 /*****************************************************************************
 573  * vout_Render: render previously calculated output
 574  *****************************************************************************/
 575 void vout_Render( vout_thread_t *p_vout, picture_t *p_pic )
 576 {
 577     ;
 578 }
 579
 580 /*****************************************************************************
 581  * vout_Display: displays previously rendered output
 582  *****************************************************************************
 583  * This function send the currently rendered image to BeOS image, waits until
 584  * it is displayed and switch the two rendering buffers, preparing next frame.
 585  *****************************************************************************/
 586 void vout_Display( vout_thread_t *p_vout, picture_t *p_pic )
 587 {
 588     VideoWindow * p_win = p_vout->p_sys->p_window;
 589
 590     /* draw buffer if required */
 591     if (!p_win->teardownwindow)
 592     {
 593        p_win->drawBuffer(p_vout->p_sys->i_index);
 594     }
 595     /* change buffer */
 596     p_vout->p_sys->i_index = ++p_vout->p_sys->i_index % 3;
 597     p_pic->p->p_pixels = p_vout->p_sys->pp_buffer[p_vout->p_sys->i_index];
 598 }
 599
 600 /* following functions are local */
 601
 602 /*****************************************************************************
 603  * BeosOpenDisplay: open and initialize BeOS device
 604  *****************************************************************************/
 605 static int BeosOpenDisplay( vout_thread_t *p_vout )
 606 {
 607
 608     p_vout->p_sys->p_window = new VideoWindow( p_vout->p_sys->i_width - 1,
 609                                                p_vout->p_sys->i_height - 1,
 610                                                BRect( 20, 50,
 611                                                       20 + p_vout->i_window_width - 1,
 612                                                       50 + p_vout->i_window_height - 1 ));
 613
 614     if( p_vout->p_sys->p_window == NULL )
 615     {
 616         msg_Err( p_vout, "cannot allocate VideoWindow" );
 617         return( 1 );
 618     }
 619
 620     return( 0 );
 621 }
 622
 623 /*****************************************************************************
 624  * BeosDisplay: close and reset BeOS device
 625  *****************************************************************************
 626  * Returns all resources allocated by BeosOpenDisplay and restore the original
 627  * state of the device.
 628  *****************************************************************************/
 629 static void BeosCloseDisplay( vout_thread_t *p_vout )
 630 {
 631     VideoWindow * p_win = p_vout->p_sys->p_window;
 632     /* Destroy the video window */
 633     if( p_win != NULL && !p_win->teardownwindow)
 634     {
 635         p_win->Lock();
 636         p_win->teardownwindow = true;
 637         p_win->Hide();
 638         p_win->Quit();
 639     }
 640     p_win = NULL;
 641 }
 642
 643
 644
 645 } /* extern "C" */