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 1.36 2001/12/30 07:09:54 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 extern "C"
  40 {
  41 #include <videolan/vlc.h>
  42
  43 #include "video.h"
  44 #include "video_output.h"
  45
  46 #include "interface.h"
  47 }
  48
  49 #include "VideoWindow.h"
  50
  51 #define BITS_PER_PLANE  32
  52 #define BYTES_PER_PIXEL 4
  53
  54 /*****************************************************************************
  55  * vout_sys_t: BeOS video output method descriptor
  56  *****************************************************************************
  57  * This structure is part of the video output thread descriptor.
  58  * It describes the BeOS specific properties of an output thread.
  59  *****************************************************************************/
  60 typedef struct vout_sys_s
  61 {
  62     VideoWindow *      p_window;
  63
  64     byte_t *              pp_buffer[2];
  65     s32                   i_width;
  66     s32                   i_height;
  67 } vout_sys_t;
  68
  69
  70 /*****************************************************************************
  71  * beos_GetAppWindow : retrieve a BWindow pointer from the window name
  72  *****************************************************************************/
  73 BWindow *beos_GetAppWindow(char *name)
  74 {
  75     int32       index;
  76     BWindow     *window;
  77
  78     for (index = 0 ; ; index++)
  79     {
  80         window = be_app->WindowAt(index);
  81         if (window == NULL)
  82             break;
  83         if (window->LockWithTimeout(20000) == B_OK)
  84         {
  85             if (strcmp(window->Name(), name) == 0)
  86             {
  87                 window->Unlock();
  88                 break;
  89             }
  90             window->Unlock();
  91         }
  92     }
  93     return window;
  94 }
  95
  96 /****************************************************************************
  97 *
  98  * DrawingThread : thread that really does the drawing
  99  ****************************************************************************
 100 */
 101 int32 Draw(void *data)
 102 {
 103     //rudolf: sync init:
 104     BScreen *screen;
 105     display_mode disp_mode;
 106     static uint32 refresh, oldrefresh = 0;
 107
 108     screen = new BScreen();
 109     screen-> GetMode(&disp_mode);
 110     refresh =
 111          (disp_mode.timing.pixel_clock * 1000)/((disp_mode.timing.h_total)*
 112          (disp_mode.timing.v_total));
 113     if (!(refresh == oldrefresh))
 114     {
 115         printf("\nNew refreshrate is %d:Hz\n",refresh);
 116         oldrefresh = refresh;
 117         if (refresh  < 61)
 118         {
 119             printf("Enabling retrace sync.\n");
 120         }
 121         else
 122         {
 123             printf("Disabling retrace sync.\n");
 124         }
 125     }
 126
 127     VideoWindow* p_win;
 128     p_win = (VideoWindow *) data;
 129     if ( p_win-> voutWindow-> LockLooper() )
 130     {
 131         //rudolf: sync:
 132         if (refresh  < 61)
 133         {
 134             screen-> WaitForRetrace(22000);//set timeout for  < 45 Hz...
 135         }
 136
 137         p_win-> view-> DrawBitmap( p_win-> bitmap[p_win-> i_buffer],
 138                                  p_win-> bitmap[p_win-> i_buffer]-> Bounds(),
 139                                  p_win-> voutWindow-> Bounds() );
 140         p_win-> voutWindow-> UnlockLooper();
 141     }
 142     return B_OK;
 143 }
 144
 145 /*****************************************************************************
 146  * bitmapWindow : This is the bitmap window output
 147  *****************************************************************************/
 148 bitmapWindow::bitmapWindow(BRect frame, VideoWindow *theOwner)
 149         : BWindow( frame, NULL, B_TITLED_WINDOW,
 150                    B_OUTLINE_RESIZE | B_NOT_CLOSABLE | B_NOT_MINIMIZABLE )
 151 {
 152     is_zoomed = false;
 153     origRect = frame;
 154     owner = theOwner;
 155     SetTitle(VOUT_TITLE " (BBitmap output)");
 156 }
 157
 158 bitmapWindow::~bitmapWindow()
 159 {
 160 }
 161
 162 void bitmapWindow::FrameResized( float width, float height )
 163 {
 164         if (is_zoomed)
 165         {
 166             return;
 167         }
 168         float width_scale;
 169         float height_scale;
 170
 171         width_scale = width / origRect.Width();
 172         height_scale = height / origRect.Height();
 173
 174     /* if the width is proportionally smaller */
 175     if (width_scale <= height_scale)
 176     {
 177         ResizeTo(width, origRect.Height() * width_scale);
 178     }
 179     else /* if the height is proportionally smaller */
 180     {
 181         ResizeTo(origRect.Width() * height_scale, height);
 182     }
 183 }
 184
 185 void bitmapWindow::Zoom(BPoint origin, float width, float height )
 186 {
 187         if(is_zoomed)
 188         {
 189                 MoveTo(origRect.left, origRect.top);
 190                 ResizeTo(origRect.IntegerWidth(), origRect.IntegerHeight());
 191                 be_app->ShowCursor();
 192         }
 193         else
 194         {
 195                 BScreen *screen;
 196                 screen = new BScreen(this);
 197                 BRect rect = screen->Frame();
 198                 delete screen;
 199                 MoveTo(0,0);
 200                 ResizeTo(rect.IntegerWidth(), rect.IntegerHeight());
 201                 be_app->HideCursor();
 202         }
 203         is_zoomed = !is_zoomed;
 204 }
 205
 206 /*****************************************************************************
 207  * directWindow : This is the bitmap window output
 208  *****************************************************************************/
 209 directWindow::directWindow(BRect frame, VideoWindow *theOwner)
 210         : BDirectWindow( frame, NULL, B_TITLED_WINDOW,
 211                    B_OUTLINE_RESIZE | B_NOT_CLOSABLE | B_NOT_MINIMIZABLE )
 212 {
 213     is_zoomed = false;
 214     origRect = frame;
 215     owner = theOwner;
 216     SetTitle(VOUT_TITLE " (DirectWindow output)");
 217 }
 218
 219 directWindow::~directWindow()
 220 {
 221 }
 222
 223 void directWindow::DirectConnected(direct_buffer_info *info)
 224 {
 225 }
 226
 227 void directWindow::FrameResized( float width, float height )
 228 {
 229         if (is_zoomed)
 230         {
 231             return;
 232         }
 233         float width_scale;
 234         float height_scale;
 235
 236         width_scale = width / origRect.Width();
 237         height_scale = height / origRect.Height();
 238
 239     /* if the width is proportionally smaller */
 240     if (width_scale <= height_scale)
 241     {
 242         ResizeTo(width, origRect.Height() * width_scale);
 243     }
 244     else /* if the height is proportionally smaller */
 245     {
 246         ResizeTo(origRect.Width() * height_scale, height);
 247     }
 248 }
 249
 250 void directWindow::Zoom(BPoint origin, float width, float height )
 251 {
 252         if(is_zoomed)
 253         {
 254             SetFullScreen(false);
 255                 MoveTo(origRect.left, origRect.top);
 256                 ResizeTo(origRect.IntegerWidth(), origRect.IntegerHeight());
 257                 be_app->ShowCursor();
 258         }
 259         else
 260         {
 261                 SetFullScreen(true);
 262                 BScreen *screen;
 263                 screen = new BScreen(this);
 264                 BRect rect = screen->Frame();
 265                 delete screen;
 266                 MoveTo(0,0);
 267                 ResizeTo(rect.IntegerWidth(), rect.IntegerHeight());
 268                 be_app->HideCursor();
 269         }
 270         is_zoomed = !is_zoomed;
 271 }
 272
 273 /*****************************************************************************
 274  * VideoWindow constructor and destructor
 275  *****************************************************************************/
 276 VideoWindow::VideoWindow( int width, int height,
 277                           vout_thread_t *p_video_output )
 278 {
 279     if ( BDirectWindow::SupportsWindowMode() )
 280     {
 281         voutWindow = new directWindow( BRect( 80, 50,
 282                                               80 + width, 50 + height ), this );
 283     }
 284     else
 285     {
 286             voutWindow = new bitmapWindow( BRect( 80, 50,
 287                                               80 + width, 50 + height ), this );
 288         }
 289
 290         /* set the VideoWindow variables */
 291     teardownwindow = false;
 292
 293         /* create the view to do the display */
 294     view = new VLCView( voutWindow->Bounds() );
 295     voutWindow->AddChild(view);
 296
 297     /* Bitmap mode overlay not available */
 298         bitmap[0] = new BBitmap( voutWindow->Bounds(), B_RGB32);
 299         bitmap[1] = new BBitmap( voutWindow->Bounds(), B_RGB32);
 300         memset(bitmap[0]->Bits(), 0, bitmap[0]->BitsLength());
 301         memset(bitmap[1]->Bits(), 0, bitmap[1]->BitsLength());
 302
 303         i_width = bitmap[0]->Bounds().IntegerWidth();
 304         i_height = bitmap[0]->Bounds().IntegerHeight();
 305
 306     voutWindow->Show();
 307 }
 308
 309 VideoWindow::~VideoWindow()
 310 {
 311     int32 result;
 312
 313     voutWindow->Hide();
 314     voutWindow->Sync();
 315     voutWindow->Lock();
 316     voutWindow->Quit();
 317     teardownwindow = true;
 318     wait_for_thread(fDrawThreadID, &result);
 319         delete bitmap[0];
 320         delete bitmap[1];
 321 }
 322
 323 void VideoWindow::resizeIfRequired( int newWidth, int newHeight )
 324 {
 325     if (( newWidth != i_width + 1) &&
 326         ( newHeight != i_height + 1) &&
 327         ( newWidth != 0 ))
 328     {
 329         if ( voutWindow->Lock() )
 330         {
 331             view->ClearViewBitmap();
 332             i_width = newWidth - 1;
 333             i_height = newHeight -1;
 334             voutWindow->ResizeTo((float) i_width, (float) i_height);
 335             voutWindow->Unlock();
 336         }
 337     }
 338 }
 339
 340 void VideoWindow::drawBuffer(int bufferIndex)
 341 {
 342         status_t status;
 343
 344         i_buffer = bufferIndex;
 345
 346     fDrawThreadID = spawn_thread(Draw, "drawing_thread",
 347                     B_DISPLAY_PRIORITY, (void*) this);
 348     wait_for_thread(fDrawThreadID, &status);
 349 }
 350
 351 /*****************************************************************************
 352  * VLCView::VLCView
 353  *****************************************************************************/
 354 VLCView::VLCView(BRect bounds) : BView(bounds, "", B_FOLLOW_ALL, B_WILL_DRAW)
 355 {
 356         SetViewColor(B_TRANSPARENT_32_BIT);
 357 }
 358
 359 /*****************************************************************************
 360  * VLCView::~VLCView
 361  *****************************************************************************/
 362 VLCView::~VLCView()
 363 {
 364 }
 365
 366 /*****************************************************************************
 367  * VLCVIew::~VLCView
 368  *****************************************************************************/
 369 void VLCView::MouseDown(BPoint point)
 370 {
 371         BWindow *win = Window();
 372         win->Zoom();
 373 }
 374
 375 extern "C"
 376 {
 377
 378 /*****************************************************************************
 379  * Local prototypes
 380  *****************************************************************************/
 381 static int  vout_Probe      ( probedata_t *p_data );
 382 static int  vout_Create     ( struct vout_thread_s * );
 383 static int  vout_Init       ( struct vout_thread_s * );
 384 static void vout_End        ( struct vout_thread_s * );
 385 static void vout_Destroy    ( struct vout_thread_s * );
 386 static int  vout_Manage     ( struct vout_thread_s * );
 387 static void vout_Display    ( struct vout_thread_s * );
 388
 389 static int  BeosOpenDisplay ( vout_thread_t *p_vout );
 390 static void BeosCloseDisplay( vout_thread_t *p_vout );
 391
 392 /*****************************************************************************
 393  * Functions exported as capabilities. They are declared as static so that
 394  * we don't pollute the namespace too much.
 395  *****************************************************************************/
 396 void _M( vout_getfunctions )( function_list_t * p_function_list )
 397 {
 398     p_function_list->pf_probe = vout_Probe;
 399     p_function_list->functions.vout.pf_create     = vout_Create;
 400     p_function_list->functions.vout.pf_init       = vout_Init;
 401     p_function_list->functions.vout.pf_end        = vout_End;
 402     p_function_list->functions.vout.pf_destroy    = vout_Destroy;
 403     p_function_list->functions.vout.pf_manage     = vout_Manage;
 404     p_function_list->functions.vout.pf_display    = vout_Display;
 405     p_function_list->functions.vout.pf_setpalette = NULL;
 406 }
 407
 408 /*****************************************************************************
 409  * vout_Probe: probe the video driver and return a score
 410  *****************************************************************************
 411  * This function tries to initialize SDL and returns a score to the
 412  * plugin manager so that it can select the best plugin.
 413  *****************************************************************************/
 414 static int vout_Probe( probedata_t *p_data )
 415 {
 416     if( TestMethod( VOUT_METHOD_VAR, "beos" ) )
 417     {
 418         return( 999 );
 419     }
 420     return( 100 );
 421 }
 422
 423 /*****************************************************************************
 424  * vout_Create: allocates BeOS video thread output method
 425  *****************************************************************************
 426  * This function allocates and initializes a BeOS vout method.
 427  *****************************************************************************/
 428 int vout_Create( vout_thread_t *p_vout )
 429 {
 430     /* Allocate structure */
 431     p_vout->p_sys = (vout_sys_t*) malloc( sizeof( vout_sys_t ) );
 432     if( p_vout->p_sys == NULL )
 433     {
 434         intf_ErrMsg( "error: %s", strerror(ENOMEM) );
 435         return( 1 );
 436     }
 437
 438     /* force scaling off */
 439         p_vout->b_scale = false;
 440
 441     /* Open and initialize device */
 442     if( BeosOpenDisplay( p_vout ) )
 443     {
 444         intf_ErrMsg("vout error: can't open display");
 445         free( p_vout->p_sys );
 446         return( 1 );
 447     }
 448
 449     return( 0 );
 450 }
 451
 452 /*****************************************************************************
 453  * vout_Init: initialize BeOS video thread output method
 454  *****************************************************************************/
 455 int vout_Init( vout_thread_t *p_vout )
 456 {
 457     VideoWindow * p_win = p_vout->p_sys->p_window;
 458
 459     if((p_win->bitmap[0] != NULL) && (p_win->bitmap[1] != NULL))
 460         {
 461         p_vout->pf_setbuffers( p_vout,
 462                (byte_t *)p_win->bitmap[0]->Bits(),
 463                (byte_t *)p_win->bitmap[1]->Bits());
 464     }
 465     return( 0 );
 466 }
 467
 468 /*****************************************************************************
 469  * vout_End: terminate BeOS video thread output method
 470  *****************************************************************************/
 471 void vout_End( vout_thread_t *p_vout )
 472 {
 473         /* place code here to end the video */
 474 }
 475
 476 /*****************************************************************************
 477  * vout_Destroy: destroy BeOS video thread output method
 478  *****************************************************************************
 479  * Terminate an output method created by DummyCreateOutputMethod
 480  *****************************************************************************/
 481 void vout_Destroy( vout_thread_t *p_vout )
 482 {
 483     BeosCloseDisplay( p_vout );
 484     free( p_vout->p_sys );
 485 }
 486
 487 /*****************************************************************************
 488  * vout_Manage: handle BeOS events
 489  *****************************************************************************
 490  * This function should be called regularly by video output thread. It manages
 491  * console events. It returns a non null value on error.
 492  *****************************************************************************/
 493 int vout_Manage( vout_thread_t *p_vout )
 494 {
 495     VideoWindow * p_win = p_vout->p_sys->p_window;
 496
 497     p_win->resizeIfRequired(p_vout->p_buffer[p_vout->i_buffer_index].i_pic_width,
 498                             p_vout->p_buffer[p_vout->i_buffer_index].i_pic_height);
 499
 500         return( 0 );
 501 }
 502
 503 /*****************************************************************************
 504  * vout_Display: displays previously rendered output
 505  *****************************************************************************
 506  * This function send the currently rendered image to BeOS image, waits until
 507  * it is displayed and switch the two rendering buffers, preparing next frame.
 508  *****************************************************************************/
 509 void vout_Display( vout_thread_t *p_vout )
 510 {
 511
 512     VideoWindow * p_win = p_vout->p_sys->p_window;
 513     /* draw buffer if required */
 514         if (!p_win->teardownwindow)
 515         {
 516        p_win->drawBuffer(p_vout->i_buffer_index);
 517     }
 518     /* change buffer */
 519         p_vout->i_buffer_index = ++p_vout->i_buffer_index & 1;
 520 }
 521
 522 /* following functions are local */
 523
 524 /*****************************************************************************
 525  * BeosOpenDisplay: open and initialize BeOS device
 526  *****************************************************************************/
 527 static int BeosOpenDisplay( vout_thread_t *p_vout )
 528 {
 529
 530     VideoWindow * p_win = new VideoWindow( p_vout->i_width - 1,
 531                                            p_vout->i_height - 1,
 532                                            p_vout );
 533
 534     if( p_win == 0 )
 535     {
 536         free( p_vout->p_sys );
 537         intf_ErrMsg( "error: cannot allocate memory for VideoWindow" );
 538         return( 1 );
 539     }
 540
 541     p_vout->p_sys->p_window = p_win;
 542     /* set the system to 32bits always
 543        let BeOS do all the work */
 544         p_vout->b_YCbr            = false;
 545     p_vout->i_screen_depth    = BITS_PER_PLANE;
 546     p_vout->i_bytes_per_pixel = BYTES_PER_PIXEL;
 547     p_vout->i_width           = p_win->i_width + 1;
 548     p_vout->i_height          = p_win->i_height + 1;
 549     p_vout->i_bytes_per_line  = p_vout->i_width * BYTES_PER_PIXEL;
 550
 551     p_vout->i_red_mask =        0xff0000;
 552     p_vout->i_green_mask =      0x00ff00;
 553     p_vout->i_blue_mask =       0x0000ff;
 554
 555     return( 0 );
 556 }
 557
 558 /*****************************************************************************
 559  * BeosDisplay: close and reset BeOS device
 560  *****************************************************************************
 561  * Returns all resources allocated by BeosOpenDisplay and restore the original
 562  * state of the device.
 563  *****************************************************************************/
 564 static void BeosCloseDisplay( vout_thread_t *p_vout )
 565 {
 566     /* Destroy the video window */
 567     delete p_vout->p_sys->p_window;
 568 }
 569
 570 } /* extern "C" */