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vout.c
资源名称：vlc-0.8.1.tar.gz　[点击查看]
上传用户：riyaled888
上传日期：2009-03-27
资源大小：7338k
文件大小：39k
源码类别：

多媒体

开发平台：

MultiPlatform

vout.c：源码内容
  1. /*****************************************************************************
  2.  * vout.c: QNX RTOS video output display method
  3.  *****************************************************************************
  4.  * Copyright (C) 2001, 2002 VideoLAN
  5.  *
  6.  * Authors: Jon Lech Johansen <jon-vl@nanocrew.net>
  7.  *          Pascal Levesque <Pascal.Levesque@mindready.com>
  8.  *
  9.  * This program is free software; you can redistribute it and/or modify
  10.  * it under the terms of the GNU General Public License as published by
  11.  * the Free Software Foundation; either version 2 of the License, or
  12.  * (at your option) any later version.
  13.  *
  14.  * This program is distributed in the hope that it will be useful,
  15.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17.  * GNU General Public License for more details.
  18.  *
  19.  * You should have received a copy of the GNU General Public License
  20.  * along with this program; if not, write to the Free Software
  21.  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22.  *****************************************************************************/
  24. /*****************************************************************************
  25.  * Preamble
  26.  *****************************************************************************/
  27. #include <errno.h>                                                 /* ENOMEM */
  28. #include <stdlib.h>                                                /* free() */
  29. #include <string.h>                                            /* strerror() */
  31. #include <photon/PtWidget.h>
  32. #include <photon/PtWindow.h>
  33. #include <photon/PtLabel.h>
  34. #include <photon/PdDirect.h>
  36. #include <vlc/vlc.h>
  37. #include <vlc/intf.h>
  38. #include <vlc/vout.h>
  40. /*****************************************************************************
  41.  * vout_sys_t: video output QNX method descriptor
  42.  *****************************************************************************
  43.  * This structure is part of the video output thread descriptor.
  44.  * It describes the QNX specific properties of an output thread. QNX video
  45.  * output is performed through regular resizable windows. Windows can be
  46.  * dynamically resized to adapt to the size of the streams.
  47.  *****************************************************************************/
  48. #define MAX_DIRECTBUFFERS 2
  50. #define MODE_NORMAL_MEM     0
  51. #define MODE_SHARED_MEM     1
  52. #define MODE_VIDEO_MEM      2
  53. #define MODE_VIDEO_OVERLAY  3
  55. struct vout_sys_t
  56. {
  57.     /* video mode */
  58.     int                     i_mode;
  60.     /* internal stuff */
  61.     PtWidget_t *            p_window;
  63.     /* Color palette for 8bpp */
  64.     PgColor_t p_colors[255];
  66.     /* [shared] memory blit */
  67.     int                     i_img_type;
  69.     /* video memory blit */
  71.     /* video overlay */
  72.     PgVideoChannel_t *      p_channel;
  73.     int                     i_vc_flags;
  74.     int                     i_vc_format;
  76.     int                 i_screen_depth;
  77.     int                 i_bytes_per_pixel;
  78.     int                 i_bytes_per_line;
  80.     /* position & dimensions */
  81.     PhPoint_t               pos;
  82.     PhDim_t                 dim;
  83.     PhPoint_t               old_pos;
  84.     PhDim_t                 old_dim;
  85.     PhDim_t                 screen_dim;
  86.     PhRect_t                frame;
  87. };
  90. /*****************************************************************************
  91.  * picture_sys_t: direct buffer method descriptor
  92.  *****************************************************************************
  93.  * This structure is part of the picture descriptor, it describes the
  94.  * XVideo specific properties of a direct buffer.
  95.  *****************************************************************************/
  96. struct picture_sys_t
  97. {
  98.     /* [shared] memory blit */
  99.     PhImage_t *             p_image;
  101.     /* video memory blit and video overlay */
  102.     PdOffscreenContext_t *  p_ctx[3];   /* 0: y, 1: u, 2: v */
  103.     char *                  p_buf[3];
  104. };
  107. /*****************************************************************************
  108.  * Local prototypes
  109.  *****************************************************************************/
  110. static int  QNXInit      ( vout_thread_t * );
  111. static void QNXEnd       ( vout_thread_t * );
  112. static int  QNXManage    ( vout_thread_t * );
  113. static void QNXDisplay   ( vout_thread_t *, picture_t * );
  115. static int  QNXInitDisplay ( vout_thread_t * );
  116. static int  QNXCreateWnd   ( vout_thread_t * );
  117. static int  QNXDestroyWnd  ( vout_thread_t * );
  119. static int  NewPicture     ( vout_thread_t *, picture_t *, int );
  120. static void FreePicture    ( vout_thread_t *, picture_t * );
  121. static int  ResizeOverlayOutput ( vout_thread_t * );
  122. static void SetPalette     ( vout_thread_t *, uint16_t *, uint16_t *, uint16_t * );
  124. /*****************************************************************************
  125.  * OpenVideo: allocate QNX video thread output method
  126.  *****************************************************************************
  127.  * This function allocate and initialize a QNX vout method. It uses some of the
  128.  * vout properties to choose the window size, and change them according to the
  129.  * actual properties of the display.
  130.  *****************************************************************************/
  131. int E_(OpenVideo) ( vlc_object_t *p_this )
  132. {
  133.     vout_thread_t * p_vout = (vout_thread_t *)p_this;
  135.     /* init connection to photon */
  136.     if( PtInit( "/dev/photon" ) != 0 )
  137.     {
  138.         msg_Err( p_vout, "unable to connect to photon" );
  139.         return( 1 );
  140.     }
  142.     /* allocate structure */
  143.     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
  144.     if( p_vout->p_sys == NULL )
  145.     {
  146.         msg_Err( p_vout, "out of memory" );
  147.         return( 1 );
  148.     }
  150.     memset( p_vout->p_sys, 0, sizeof( vout_sys_t ) );
  152.     p_vout->b_fullscreen = config_GetInt( p_vout, "fullscreen" );
  153.     p_vout->p_sys->i_mode = config_GetInt( p_vout, "overlay" ) ?
  154.                                 MODE_VIDEO_OVERLAY : MODE_VIDEO_MEM;
  155.     p_vout->p_sys->dim.w = p_vout->i_window_width;
  156.     p_vout->p_sys->dim.h = p_vout->i_window_height;
  158.     /* init display and create window */
  159.     if( QNXInitDisplay( p_vout ) || QNXCreateWnd( p_vout ) )
  160.     {
  161.         free( p_vout->p_sys );
  162.         return( 1 );
  163.     }
  165.     p_vout->pf_init = QNXInit;
  166.     p_vout->pf_end = QNXEnd;
  167.     p_vout->pf_manage = QNXManage;
  168.     p_vout->pf_render = NULL;
  169.     p_vout->pf_display = QNXDisplay;
  171.     return( 0 );
  172. }
  174. /*****************************************************************************
  175.  * QNXInit: initialize QNX video thread output method
  176.  *****************************************************************************
  177.  * This function create the buffers needed by the output thread. It is called
  178.  * at the beginning of the thread, but also each time the window is resized.
  179.  *****************************************************************************/
  180. static int QNXInit( vout_thread_t *p_vout )
  181. {
  182.     int i_index;
  183.     picture_t *p_pic;
  185.     I_OUTPUTPICTURES = 0;
  187.     switch( p_vout->p_sys->i_mode )
  188.     {
  189.     case MODE_NORMAL_MEM:
  190.     case MODE_SHARED_MEM:
  191.         p_vout->output.i_width = p_vout->p_sys->dim.w;
  192.         p_vout->output.i_height = p_vout->p_sys->dim.h;
  194.         /* Assume we have square pixels */
  195.         p_vout->output.i_aspect = p_vout->p_sys->dim.w
  196.                                * VOUT_ASPECT_FACTOR / p_vout->p_sys->dim.h;
  197.         break;
  199.     case MODE_VIDEO_MEM:
  200.         p_vout->output.i_width = p_vout->p_sys->dim.w;
  201.         p_vout->output.i_height = p_vout->p_sys->dim.h;
  203.         /* Assume we have square pixels */
  204.         p_vout->output.i_aspect = p_vout->p_sys->dim.w
  205.                                * VOUT_ASPECT_FACTOR / p_vout->p_sys->dim.h;
  206.         break;
  208.     case MODE_VIDEO_OVERLAY:
  209.         p_vout->output.i_width  = p_vout->render.i_width;
  210.         p_vout->output.i_height = p_vout->render.i_height;
  211.         p_vout->output.i_aspect = p_vout->render.i_aspect;
  213.         if (ResizeOverlayOutput(p_vout))
  214.         {
  215.             return (1);
  216.         }
  217.         break;
  219.     default:
  220.         /* This shouldn't happen ! */
  221.         break;
  222.     }
  224.     /* Try to initialize up to MAX_DIRECTBUFFERS direct buffers */
  225.     while( I_OUTPUTPICTURES < MAX_DIRECTBUFFERS )
  226.     {
  227.         p_pic = NULL;
  229.         /* Find an empty picture slot */
  230.         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
  231.         {
  232.             if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
  233.             {
  234.                 p_pic = p_vout->p_picture + i_index;
  235.                 break;
  236.             }
  237.         }
  239.         /* Allocate the picture */
  240.         if( p_pic == NULL || NewPicture( p_vout, p_pic, I_OUTPUTPICTURES ) )
  241.         {
  242.             break;
  243.         }
  245.         p_pic->i_status = DESTROYED_PICTURE;
  246.         p_pic->i_type   = DIRECT_PICTURE;
  248.         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
  250.         I_OUTPUTPICTURES++;
  251.     }
  253.     return( 0 );
  254. }
  256. /*****************************************************************************
  257.  * QNXEnd: terminate QNX video thread output method
  258.  *****************************************************************************
  259.  * Destroy the buffers created by QNXInit. It is called at the end of
  260.  * the thread, but also each time the window is resized.
  261.  *****************************************************************************/
  262. static void QNXEnd( vout_thread_t *p_vout )
  263. {
  264.     int i_index;
  266.     /* Free the direct buffers we allocated */
  267.     for( i_index = I_OUTPUTPICTURES ; i_index ; )
  268.     {
  269.         i_index--;
  270.         FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
  271.     }
  272. }
  274. /*****************************************************************************
  275.  * CloseVideo: destroy QNX video thread output method
  276.  *****************************************************************************
  277.  * Terminate an output method created by QNXCreate
  278.  *****************************************************************************/
  279. void E_(CloseVideo) ( vlc_object_t *p_this )
  280. {
  281.     vout_thread_t * p_vout = (vout_thread_t *)p_this;
  283.     /* destroy the window */
  284.     QNXDestroyWnd( p_vout );
  286.     /* destroy structure */
  287.     free( p_vout->p_sys );
  288. }
  290. /*****************************************************************************
  291.  * QNXManage: handle QNX events
  292.  *****************************************************************************
  293.  * This function should be called regularly by video output thread. It allows
  294.  * window resizing. It returns a non null value on error.
  295.  *****************************************************************************/
  296. static int QNXManage( vout_thread_t *p_vout )
  297. {
  298.     int i_ev,  i_buflen;
  299.     PhEvent_t *p_event;
  300.     vlc_bool_t b_repos = 0;
  302.     if (p_vout->b_die == 1)
  303.     {
  304.         return ( 0 );
  305.     }
  307.     /* allocate buffer for event */
  308.     i_buflen = sizeof( PhEvent_t ) * 4;
  309.     if( ( p_event = malloc( i_buflen ) ) == NULL )
  310.     {
  311.         msg_Err( p_vout, "out of memory" );
  312.         return( 1 );
  313.     }
  315.     /* event loop */
  316.     do
  317.     {
  318.         memset( p_event, 0, i_buflen );
  319.         i_ev = PhEventPeek( p_event, i_buflen );
  321.         if( i_ev == Ph_RESIZE_MSG )
  322.         {
  323.             i_buflen = PhGetMsgSize( p_event );
  324.             if( ( p_event = realloc( p_event, i_buflen ) ) == NULL )
  325.             {
  326.                 msg_Err( p_vout, "out of memory" );
  327.                 return( 1 );
  328.             }
  329.         }
  330.         else if( i_ev == Ph_EVENT_MSG )
  331.         {
  332.             PtEventHandler( p_event );
  334.             if( p_event->type == Ph_EV_WM )
  335.             {
  336.                 PhWindowEvent_t *p_ev = PhGetData( p_event );
  338.                 switch( p_ev->event_f )
  339.                 {
  340.                 case Ph_WM_CLOSE:
  341.                     p_vout->p_vlc->b_die = 1;
  342.                     break;
  344.                 case Ph_WM_MOVE:
  345.                     p_vout->p_sys->pos.x = p_ev->pos.x;
  346.                     p_vout->p_sys->pos.y = p_ev->pos.y;
  347.                     b_repos = 1;
  348.                     break;
  350.                 case Ph_WM_RESIZE:
  351.                     p_vout->p_sys->old_dim.w = p_vout->p_sys->dim.w;
  352.                     p_vout->p_sys->old_dim.h = p_vout->p_sys->dim.h;
  353.                     p_vout->p_sys->dim.w = p_ev->size.w;
  354.                     p_vout->p_sys->dim.h = p_ev->size.h;
  355.                     p_vout->i_changes |= VOUT_SIZE_CHANGE;
  356.                     break;
  357.                 }
  358.             }
  359.             else if( p_event->type == Ph_EV_KEY )
  360.             {
  361.                 PhKeyEvent_t *p_ev = PhGetData( p_event );
  362.                 long i_key = p_ev->key_sym;
  364.                 if( ( p_ev->key_flags & Pk_KF_Key_Down ) &&
  365.                     ( p_ev->key_flags & Pk_KF_Sym_Valid ) )
  366.                 {
  367.                     switch( i_key )
  368.                     {
  369.                     case Pk_q:
  370.                     case Pk_Q:
  371.                         p_vout->p_vlc->b_die = 1;
  372.                         break;
  374.                     case Pk_f:
  375.                     case Pk_F:
  376.                         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
  377.                         break;
  379.                     case Pk_c:
  380.                     case Pk_C:
  381.                         p_vout->b_grayscale = ! p_vout->b_grayscale;
  382.                         p_vout->i_changes |= VOUT_GRAYSCALE_CHANGE;
  383.                         break;
  385.                     default:
  386.                         break;
  387.                     }
  388.                 }
  389.             }
  390.         }
  391.     } while( i_ev != -1 && i_ev != 0 );
  393.     free( p_event );
  395.     /*
  396.      * fullscreen
  397.      */
  398.     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
  399.     {
  400.         PhDim_t dim;
  402.         p_vout->b_fullscreen = !p_vout->b_fullscreen;
  403.         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
  405.         if( p_vout->b_fullscreen )
  406.         {
  407.             p_vout->p_sys->old_pos.x = p_vout->p_sys->pos.x;
  408.             p_vout->p_sys->old_pos.y = p_vout->p_sys->pos.y;
  409.             p_vout->p_sys->pos.x = p_vout->p_sys->pos.y = 0;
  410.             dim.w = p_vout->p_sys->screen_dim.w + 1;
  411.             dim.h = p_vout->p_sys->screen_dim.h + 1;
  412.         }
  413.         else
  414.         {
  415.             p_vout->p_sys->pos.x = p_vout->p_sys->old_pos.x;
  416.             p_vout->p_sys->pos.y = p_vout->p_sys->old_pos.y;
  417.             dim.w = p_vout->p_sys->old_dim.w + 1;
  418.             dim.h = p_vout->p_sys->old_dim.h + 1;
  419.         }
  421.         /* modify render flags, border */
  422.         PtSetResource( p_vout->p_sys->p_window,
  423.             Pt_ARG_WINDOW_RENDER_FLAGS,
  424.             p_vout->b_fullscreen ? Pt_FALSE : Pt_TRUE,
  425.             Ph_WM_RENDER_BORDER | Ph_WM_RENDER_TITLE );
  427.         /* set position and dimension */
  428.         PtSetResource( p_vout->p_sys->p_window,
  429.                        Pt_ARG_POS, &p_vout->p_sys->pos, 0 );
  430.         PtSetResource( p_vout->p_sys->p_window,
  431.                        Pt_ARG_DIM, &dim, 0 );
  433.         /* mark as damaged to force redraw */
  434.         PtDamageWidget( p_vout->p_sys->p_window );
  435.     }
  437.     /*
  438.      * size change
  439.      */
  440.     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
  441.     {
  442.         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
  444.         if( p_vout->p_sys->i_mode == MODE_VIDEO_OVERLAY )
  445.         {
  446.             ResizeOverlayOutput(p_vout);
  447.         }
  448. #if 0
  449.         else
  450.         {
  451.             p_vout->output.i_width = p_vout->p_sys->dim.w;
  452.             p_vout->output.i_height = p_vout->p_sys->dim.h;
  453.             p_vout->i_changes |= VOUT_YUV_CHANGE;
  455.             QNXEnd( p_vout );
  456.             if( QNXInit( p_vout ) )
  457.             {
  458.                 msg_Err( p_vout, "cannot resize display" );
  459.                 return( 1 );
  460.             }
  461.         }
  462. #endif
  464.         msg_Dbg( p_vout, "video display resized (%dx%d)",
  465.                          p_vout->p_sys->dim.w, p_vout->p_sys->dim.h );
  466.     }
  468.     /*
  469.      * position change, move video channel
  470.      */
  471.     if( b_repos && p_vout->p_sys->i_mode == MODE_VIDEO_OVERLAY )
  472.     {
  473.         ResizeOverlayOutput(p_vout);
  474.     }
  476.     return( i_ev == -1 );
  477. }
  479. /*****************************************************************************
  480.  * QNXDisplay: displays previously rendered output
  481.  *****************************************************************************
  482.  * This function send the currently rendered image to QNX server, wait until
  483.  * it is displayed and switch the two rendering buffer, preparing next frame.
  484.  *****************************************************************************/
  485. static void QNXDisplay( vout_thread_t *p_vout, picture_t *p_pic )
  486. {
  487.     if( p_vout->p_sys->i_mode == MODE_NORMAL_MEM ||
  488.         p_vout->p_sys->i_mode == MODE_SHARED_MEM )
  489.     {
  490.         PhPoint_t pos = { 0, 0 };
  492.         PgSetRegion( PtWidgetRid( p_vout->p_sys->p_window ) );
  493.         if (p_vout->p_sys->i_screen_depth == 8)
  494.         {
  495.             PgSetPalette( p_vout->p_sys->p_colors, 0, 0, 255, Pg_PALSET_SOFT, 0);
  496.         }
  497.         PgDrawPhImagemx( &pos, p_pic->p_sys->p_image, 0 );
  498.         PgFlush();
  499.     }
  500.     else if( p_vout->p_sys->i_mode == MODE_VIDEO_MEM )
  501.     {
  502.         PhRect_t rc = { { 0, 0 }, { p_vout->output.i_width, p_vout->output.i_height } };
  504. //        PgSetRegion( PtWidgetRid ( p_vout->p_sys->p_window ) );
  505.         PgContextBlit( p_pic->p_sys->p_ctx[0], &rc, NULL, &rc );
  506.         PgFlush();
  507.     }
  508. }
  510. /*****************************************************************************
  511.  * QNXInitDisplay: check screen resolution, depth, amount of video ram, etc
  512.  *****************************************************************************/
  513. static int QNXInitDisplay( vout_thread_t * p_vout )
  514. {
  515.     PgHWCaps_t hwcaps;
  516.     PgDisplaySettings_t cfg;
  517.     PgVideoModeInfo_t minfo;
  519.     /* get graphics card hw capabilities */
  520.     if( PgGetGraphicsHWCaps( &hwcaps ) != 0 )
  521.     {
  522.         msg_Err( p_vout, "unable to get gfx card capabilities" );
  523.         return( 1 );
  524.     }
  526.     /* get current video mode */
  527.     if( PgGetVideoMode( &cfg ) != 0 )
  528.     {
  529.         msg_Err( p_vout, "unable to get current video mode" );
  530.         return( 1 );
  531.     }
  533.     /* get video mode info */
  534.     if( PgGetVideoModeInfo( cfg.mode, &minfo ) != 0 )
  535.     {
  536.         msg_Err( p_vout, "unable to get info for video mode" );
  537.         return( 1 );
  538.     }
  540.     if( p_vout->p_sys->i_mode == MODE_VIDEO_OVERLAY )
  541.     {
  542.         int i = 0;
  543.         PgScalerCaps_t vcaps;
  545.         if( ( p_vout->p_sys->p_channel =
  546.             PgCreateVideoChannel( Pg_VIDEO_CHANNEL_SCALER, 0 ) ) == NULL )
  547.         {
  548.             msg_Err( p_vout, "unable to create video channel" );
  549.             printf("errno = %dn", errno);
  550.             p_vout->p_sys->i_mode = MODE_NORMAL_MEM;
  551.         }
  552.         else
  553.         {
  554.             vcaps.size = sizeof( vcaps );
  555.             while( PgGetScalerCapabilities( p_vout->p_sys->p_channel,
  556.                                             i++, &vcaps ) == 0 )
  557.             {
  558.                 printf("vcaps.format = 0x%xn", vcaps.format);
  559.                 if( vcaps.format == Pg_VIDEO_FORMAT_YV12 ||
  560.                     vcaps.format == Pg_VIDEO_FORMAT_YUV420 ||
  561.                     vcaps.format == Pg_VIDEO_FORMAT_YUY2 ||
  562.                     vcaps.format == Pg_VIDEO_FORMAT_UYVY ||
  563.                     vcaps.format == Pg_VIDEO_FORMAT_RGB555 ||
  564.                     vcaps.format == Pg_VIDEO_FORMAT_RGB565 ||
  565.                     vcaps.format == Pg_VIDEO_FORMAT_RGB8888 )
  566.                 {
  567.                     p_vout->p_sys->i_vc_flags  = vcaps.flags;
  568.                     p_vout->p_sys->i_vc_format = vcaps.format;
  569.                 }
  571.                 vcaps.size = sizeof( vcaps );
  572.             }
  574.             if( p_vout->p_sys->i_vc_format == 0 )
  575.             {
  576.                 msg_Warn( p_vout, "need YV12, YUY2 or RGB8888 overlay" );
  578.                 p_vout->p_sys->i_mode = MODE_NORMAL_MEM;
  579.             }
  580.         }
  581.     }
  583.     /* use video ram if we have enough available */
  584.     if( p_vout->p_sys->i_mode == MODE_NORMAL_MEM &&
  585.         (minfo.bits_per_pixel != 8) &&
  586.         hwcaps.currently_available_video_ram >=
  587.         ( ( minfo.width * minfo.height * minfo.bits_per_pixel * MAX_DIRECTBUFFERS) / 8 ) )
  588.     {
  589.         p_vout->p_sys->i_mode = MODE_VIDEO_MEM;
  590.         printf("Using video memory...n");
  591.     }
  593.     p_vout->p_sys->i_img_type = minfo.type;
  594.     p_vout->p_sys->screen_dim.w = minfo.width;
  595.     p_vout->p_sys->screen_dim.h = minfo.height;
  596.     p_vout->p_sys->i_screen_depth = minfo.bits_per_pixel;
  598.     switch( p_vout->p_sys->i_screen_depth )
  599.     {
  600.         case 8:
  601.             p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
  602.             p_vout->p_sys->i_bytes_per_pixel = 1;
  603.             p_vout->output.pf_setpalette = SetPalette;
  604.             break;
  606.         case 15:
  607.             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5');
  608.             p_vout->p_sys->i_bytes_per_pixel = 2;
  609.             p_vout->output.i_rmask = 0x7c00;
  610.             p_vout->output.i_gmask = 0x03e0;
  611.             p_vout->output.i_bmask = 0x001f;
  612.             break;
  614.         case 16:
  615.             p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');
  616.             p_vout->p_sys->i_bytes_per_pixel = 2;
  617.             p_vout->output.i_rmask = 0xf800;
  618.             p_vout->output.i_gmask = 0x07e0;
  619.             p_vout->output.i_bmask = 0x001f;
  620.             break;
  622.         case 24:
  623.             p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4');
  624.             p_vout->p_sys->i_bytes_per_pixel = 3;
  625.             p_vout->output.i_rmask = 0xff0000;
  626.             p_vout->output.i_gmask = 0x00ff00;
  627.             p_vout->output.i_bmask = 0x0000ff;
  628.             break;
  630.         case 32:
  631.         default:
  632.             p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2');
  633.             p_vout->p_sys->i_bytes_per_pixel = 4;
  634.             p_vout->output.i_rmask = 0xff0000;
  635.             p_vout->output.i_gmask = 0x00ff00;
  636.             p_vout->output.i_bmask = 0x0000ff;
  637.             break;
  638.     }
  640.     return( 0 );
  641. }
  643. /*****************************************************************************
  644.  * QNXCreateWnd: create and realize the main window
  645.  *****************************************************************************/
  646. static int QNXCreateWnd( vout_thread_t * p_vout )
  647. {
  648.     PtArg_t args[8];
  649.     PhPoint_t pos = { 0, 0 };
  650.     PgColor_t color = Pg_BLACK;
  652.     if( p_vout->p_sys->i_mode == MODE_VIDEO_OVERLAY )
  653.     {
  654.         if( p_vout->p_sys->i_vc_flags & Pg_SCALER_CAP_DST_CHROMA_KEY )
  655.         {
  656.             color = PgGetOverlayChromaColor();
  657.         }
  658.     }
  660.     /* fullscreen, set dimension */
  661.     if( p_vout->b_fullscreen )
  662.     {
  663.         p_vout->p_sys->old_dim.w = p_vout->p_sys->dim.w;
  664.         p_vout->p_sys->old_dim.h = p_vout->p_sys->dim.h;
  665.         p_vout->output.i_width = p_vout->p_sys->dim.w = p_vout->p_sys->screen_dim.w;
  666.         p_vout->output.i_height = p_vout->p_sys->dim.h = p_vout->p_sys->screen_dim.h;
  667.     }
  669.     /* set window parameters */
  670.     PtSetArg( &args[0], Pt_ARG_POS, &pos, 0 );
  671.     PtSetArg( &args[1], Pt_ARG_DIM, &p_vout->p_sys->dim, 0 );
  672.     PtSetArg( &args[2], Pt_ARG_FILL_COLOR, color, 0 );
  673.     PtSetArg( &args[3], Pt_ARG_WINDOW_TITLE, "VLC media player", 0 );
  674.     PtSetArg( &args[4], Pt_ARG_WINDOW_MANAGED_FLAGS, Pt_FALSE, Ph_WM_CLOSE );
  675.     PtSetArg( &args[5], Pt_ARG_WINDOW_NOTIFY_FLAGS, Pt_TRUE,
  676.               Ph_WM_MOVE | Ph_WM_RESIZE | Ph_WM_CLOSE );
  677.     PtSetArg( &args[6], Pt_ARG_WINDOW_RENDER_FLAGS,
  678.               p_vout->b_fullscreen ? Pt_FALSE : Pt_TRUE,
  679.               Ph_WM_RENDER_BORDER | Ph_WM_RENDER_TITLE );
  681.     /* create window */
  682.     p_vout->p_sys->p_window = PtCreateWidget( PtWindow, Pt_NO_PARENT, 7, args);
  683.     if( p_vout->p_sys->p_window == NULL )
  684.     {
  685.         msg_Err( p_vout, "unable to create window" );
  686.         return( 1 );
  687.     }
  689.     /* realize the window widget */
  690.     if( PtRealizeWidget( p_vout->p_sys->p_window ) != 0 )
  691.     {
  692.         msg_Err( p_vout, "unable to realize window widget" );
  693.         PtDestroyWidget( p_vout->p_sys->p_window );
  694.         return( 1 );
  695.     }
  697.     /* get window frame size */
  698.     if( PtWindowFrameSize( NULL, p_vout->p_sys->p_window,
  699.                            &p_vout->p_sys->frame ) != 0 )
  700.     {
  701.         msg_Err( p_vout, "unable to get window frame size" );
  702.         PtDestroyWidget( p_vout->p_sys->p_window );
  703.         return( 1 );
  704.     }
  706.     return( 0 );
  707. }
  709. /*****************************************************************************
  710.  * QNXDestroyWnd: unrealize and destroy the main window
  711.  *****************************************************************************/
  712. static int QNXDestroyWnd( vout_thread_t * p_vout )
  713. {
  714.     /* destroy the window widget */
  715.     PtUnrealizeWidget( p_vout->p_sys->p_window );
  716. //    PtDestroyWidget( p_vout->p_sys->p_window );
  718.     /* destroy video channel */
  719.     if( p_vout->p_sys->i_mode == MODE_VIDEO_OVERLAY )
  720.     {
  721.         PgDestroyVideoChannel( p_vout->p_sys->p_channel );
  722.     }
  724.     return( 0 );
  725. }
  728. /*****************************************************************************
  729.  * NewPicture: allocate a picture
  730.  *****************************************************************************
  731.  * Returns 0 on success, -1 otherwise
  732.  *****************************************************************************/
  733. static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic, int index )
  734. {
  735.     /* We know the chroma, allocate a buffer which will be used
  736.      * directly by the decoder */
  737.     p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
  739.     if( p_pic->p_sys == NULL )
  740.     {
  741.         return -1;
  742.     }
  744.     switch( p_vout->p_sys->i_mode )
  745.     {
  746.     case MODE_NORMAL_MEM:
  747.     case MODE_SHARED_MEM:
  748.         /* create images for [shared] memory blit */
  749.         if( !( p_pic->p_sys->p_image = PhCreateImage( NULL,
  750.                     p_vout->p_sys->dim.w, p_vout->p_sys->dim.h,
  751.                     p_vout->p_sys->i_img_type, NULL, 0,
  752.                     p_vout->p_sys->i_mode == MODE_SHARED_MEM ) ) ) {
  753.             msg_Err( p_vout, "cannot create image" );
  754.             free( p_pic->p_sys );
  755.             return( -1 );
  756.         }
  758.         p_pic->p->p_pixels = p_pic->p_sys->p_image->image;
  759.         p_pic->p->i_lines = p_pic->p_sys->p_image->size.h;
  760.         p_pic->p->i_visible_lines = p_pic->p_sys->p_image->size.h;
  761.         p_pic->p->i_pitch = p_pic->p_sys->p_image->bpl;
  762.         p_pic->p->i_pixel_pitch = p_vout->p_sys->i_bytes_per_pixel;
  763.         p_pic->p->i_visible_pitch = p_vout->p_sys->i_bytes_per_pixel
  764.                                      * p_pic->p_sys->p_image->size.w;
  765.         p_pic->i_planes = 1;
  766.         break;
  768.     case MODE_VIDEO_MEM:
  769.         /* create offscreen contexts for video memory blit */
  770.         if( ( p_pic->p_sys->p_ctx[0] = PdCreateOffscreenContext( 0,
  771.                         p_vout->p_sys->dim.w, p_vout->p_sys->dim.h,
  772.                        Pg_OSC_MEM_PAGE_ALIGN) ) == NULL )
  773.         {
  774.             msg_Err( p_vout, "unable to create offscreen context" );
  775.             free( p_pic->p_sys );
  776.             return( -1 );
  777.         }
  779.         /* get context pointers */
  780.         if( (  p_pic->p_sys->p_buf[0] =
  781.             PdGetOffscreenContextPtr ( p_pic->p_sys->p_ctx[0] ) ) == NULL )
  782.         {
  783.             msg_Err( p_vout, "unable to get offscreen context ptr" );
  784.             PhDCRelease ( p_pic->p_sys->p_ctx[0] );
  785.             p_pic->p_sys->p_ctx[0] = NULL;
  786.             free( p_pic->p_sys );
  787.             return( -1 );
  788.         }
  790.         p_vout->p_sys->i_bytes_per_line = p_pic->p_sys->p_ctx[0]->pitch;
  791.         memset( p_pic->p_sys->p_buf[0], 0,
  792.             p_vout->p_sys->i_bytes_per_line * p_vout->p_sys->dim.h );
  794.         p_pic->p->p_pixels = p_pic->p_sys->p_buf[0];
  795.         p_pic->p->i_lines = p_pic->p_sys->p_ctx[0]->dim.h;
  796.         p_pic->p->i_visible_lines = p_pic->p_sys->p_ctx[0]->dim.h;
  797.         p_pic->p->i_pitch = p_pic->p_sys->p_ctx[0]->pitch;
  798.         p_pic->p->i_pixel_pitch = p_vout->p_sys->i_bytes_per_pixel;
  799.         p_pic->p->i_visible_pitch = p_vout->p_sys->i_bytes_per_pixel
  800.                                      * p_pic->p_sys->p_ctx[0]->dim.w;
  801.         p_pic->i_planes = 1;
  802.         break;
  804.     case MODE_VIDEO_OVERLAY:
  805.         if (index == 0)
  806.         {
  807.             p_pic->p_sys->p_ctx[Y_PLANE] = p_vout->p_sys->p_channel->yplane1;
  808.             p_pic->p_sys->p_ctx[U_PLANE] = p_vout->p_sys->p_channel->uplane1;
  809.             p_pic->p_sys->p_ctx[V_PLANE] = p_vout->p_sys->p_channel->vplane1;
  810.         }
  811.         else
  812.         {
  813.             p_pic->p_sys->p_ctx[Y_PLANE] = p_vout->p_sys->p_channel->yplane2;
  814.             p_pic->p_sys->p_ctx[U_PLANE] = p_vout->p_sys->p_channel->uplane2;
  815.             p_pic->p_sys->p_ctx[V_PLANE] = p_vout->p_sys->p_channel->vplane2;
  816.         }
  818.         p_pic->p_sys->p_buf[Y_PLANE] = PdGetOffscreenContextPtr( p_pic->p_sys->p_ctx[Y_PLANE] );
  819.         if( p_pic->p_sys->p_buf[Y_PLANE] == NULL )
  820.         {
  821.             msg_Err( p_vout, "unable to get video channel ctx ptr" );
  822.             return( 1 );
  823.         }
  825.         switch (p_vout->p_sys->i_vc_format)
  826.         {
  827.             case Pg_VIDEO_FORMAT_YUV420:
  828.                 p_vout->output.i_chroma = VLC_FOURCC('I','4','2','0');
  830.                 p_pic->p_sys->p_buf[U_PLANE] = PdGetOffscreenContextPtr( p_pic->p_sys->p_ctx[U_PLANE] );
  831.                 p_pic->p_sys->p_buf[V_PLANE] = PdGetOffscreenContextPtr( p_pic->p_sys->p_ctx[V_PLANE] );
  833.                 if( p_pic->p_sys->p_buf[U_PLANE] == NULL ||
  834.                     p_pic->p_sys->p_buf[V_PLANE] == NULL )
  835.                 {
  836.                     msg_Err( p_vout, "unable to get video channel ctx ptr" );
  837.                     return( 1 );
  838.                 }
  840.                 p_pic->Y_PIXELS = p_pic->p_sys->p_buf[Y_PLANE];
  841.                 p_pic->p[Y_PLANE].i_lines = p_pic->p_sys->p_ctx[Y_PLANE]->dim.h;
  842.                 p_pic->p[Y_PLANE].i_visible_lines = p_pic->p_sys->p_ctx[Y_PLANE]->dim.h;
  843.                 p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_ctx[Y_PLANE]->pitch;
  844.                 p_pic->p[Y_PLANE].i_pixel_pitch = 1;
  845.                 p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p[Y_PLANE].i_pitch;
  847.                 p_pic->U_PIXELS = p_pic->p_sys->p_buf[U_PLANE];
  848.                 p_pic->p[U_PLANE].i_lines = p_pic->p_sys->p_ctx[U_PLANE]->dim.h;
  849.                 p_pic->p[U_PLANE].i_visible_lines = p_pic->p_sys->p_ctx[U_PLANE]->dim.h;
  850.                 p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_ctx[U_PLANE]->pitch;
  851.                 p_pic->p[U_PLANE].i_pixel_pitch = 1;
  852.                 p_pic->p[U_PLANE].i_visible_pitch = p_pic->p[U_PLANE].i_pitch;
  854.                 p_pic->V_PIXELS = p_pic->p_sys->p_buf[V_PLANE];
  855.                 p_pic->p[V_PLANE].i_lines = p_pic->p_sys->p_ctx[V_PLANE]->dim.h;
  856.                 p_pic->p[V_PLANE].i_visible_lines = p_pic->p_sys->p_ctx[V_PLANE]->dim.h;
  857.                 p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_ctx[V_PLANE]->pitch;
  858.                 p_pic->p[V_PLANE].i_pixel_pitch = 1;
  859.                 p_pic->p[V_PLANE].i_visible_pitch = p_pic->p[V_PLANE].i_pitch;
  861.                 p_pic->i_planes = 3;
  862.                 break;
  864.             case Pg_VIDEO_FORMAT_YV12:
  865.                 p_vout->output.i_chroma = VLC_FOURCC('Y','V','1','2');
  867.                 p_pic->p_sys->p_buf[U_PLANE] = PdGetOffscreenContextPtr( p_pic->p_sys->p_ctx[U_PLANE] );
  868.                 p_pic->p_sys->p_buf[V_PLANE] = PdGetOffscreenContextPtr( p_pic->p_sys->p_ctx[V_PLANE] );
  870.                 if( p_pic->p_sys->p_buf[U_PLANE] == NULL ||
  871.                     p_pic->p_sys->p_buf[V_PLANE] == NULL )
  872.                 {
  873.                     msg_Err( p_vout, "unable to get video channel ctx ptr" );
  874.                     return( 1 );
  875.                 }
  877.                 p_pic->Y_PIXELS = p_pic->p_sys->p_buf[Y_PLANE];
  878.                 p_pic->p[Y_PLANE].i_lines = p_pic->p_sys->p_ctx[Y_PLANE]->dim.h;
  879.                 p_pic->p[Y_PLANE].i_visible_lines = p_pic->p_sys->p_ctx[Y_PLANE]->dim.h;
  880.                 p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_ctx[Y_PLANE]->pitch;
  881.                 p_pic->p[Y_PLANE].i_pixel_pitch = 1;
  882.                 p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p[Y_PLANE].i_pitch;
  884.                 p_pic->U_PIXELS = p_pic->p_sys->p_buf[U_PLANE];
  885.                 p_pic->p[U_PLANE].i_lines = p_pic->p_sys->p_ctx[U_PLANE]->dim.h;
  886.                 p_pic->p[U_PLANE].i_visible_lines = p_pic->p_sys->p_ctx[U_PLANE]->dim.h;
  887.                 p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_ctx[U_PLANE]->pitch;
  888.                 p_pic->p[U_PLANE].i_pixel_pitch = 1;
  889.                 p_pic->p[U_PLANE].i_visible_pitch = p_pic->p[U_PLANE].i_pitch;
  891.                 p_pic->V_PIXELS = p_pic->p_sys->p_buf[V_PLANE];
  892.                 p_pic->p[V_PLANE].i_lines = p_pic->p_sys->p_ctx[V_PLANE]->dim.h;
  893.                 p_pic->p[V_PLANE].i_visible_lines = p_pic->p_sys->p_ctx[V_PLANE]->dim.h;
  894.                 p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_ctx[V_PLANE]->pitch;
  895.                 p_pic->p[V_PLANE].i_pixel_pitch = 1;
  896.                 p_pic->p[V_PLANE].i_visible_pitch = p_pic->p[V_PLANE].i_pitch;
  898.                 p_pic->i_planes = 3;
  899.                 break;
  901.             case Pg_VIDEO_FORMAT_UYVY:
  902.             case Pg_VIDEO_FORMAT_YUY2:
  903.                 if (p_vout->p_sys->i_vc_format == Pg_VIDEO_FORMAT_UYVY)
  904.                 {
  905.                     p_vout->output.i_chroma = VLC_FOURCC('U','Y','V','Y');
  906.                 }
  907.                 else
  908.                 {
  909.                     p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
  910.                 }
  912.                 p_pic->p->p_pixels = p_pic->p_sys->p_buf[Y_PLANE];
  913.                 p_pic->p->i_lines = p_pic->p_sys->p_ctx[Y_PLANE]->dim.h;
  914.                 p_pic->p->i_visible_lines = p_pic->p_sys->p_ctx[Y_PLANE]->dim.h;
  915.                 p_pic->p->i_pitch = p_pic->p_sys->p_ctx[Y_PLANE]->pitch;
  916.                 p_pic->p->i_pixel_pitch = 4;
  917.                 p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
  919.                 p_pic->i_planes = 1;
  920.                 break;
  922.             case Pg_VIDEO_FORMAT_RGB555:
  923.                 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5');
  924.                 p_vout->output.i_rmask = 0x001f;
  925.                 p_vout->output.i_gmask = 0x03e0;
  926.                 p_vout->output.i_bmask = 0x7c00;
  928.                 p_pic->p->p_pixels = p_pic->p_sys->p_buf[Y_PLANE];
  929.                 p_pic->p->i_lines = p_pic->p_sys->p_ctx[Y_PLANE]->dim.h;
  930.                 p_pic->p->i_visible_lines = p_pic->p_sys->p_ctx[Y_PLANE]->dim.h;
  931.                 p_pic->p->i_pitch = p_pic->p_sys->p_ctx[Y_PLANE]->pitch;
  932.                 p_pic->p->i_pixel_pitch = 2;
  933.                 p_pic->p->i_visible_pitch = 2 * p_pic->p_sys->p_ctx[Y_PLANE]->dim.w;
  935.                 p_pic->i_planes = 1;
  936.                 break;
  938.             case Pg_VIDEO_FORMAT_RGB565:
  939.                 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');
  940.                 p_vout->output.i_rmask = 0x001f;
  941.                 p_vout->output.i_gmask = 0x07e0;
  942.                 p_vout->output.i_bmask = 0xf800;
  944.                 p_pic->p->p_pixels = p_pic->p_sys->p_buf[Y_PLANE];
  945.                 p_pic->p->i_lines = p_pic->p_sys->p_ctx[Y_PLANE]->dim.h;
  946.                 p_pic->p->i_visible_lines = p_pic->p_sys->p_ctx[Y_PLANE]->dim.h;
  947.                 p_pic->p->i_pitch = p_pic->p_sys->p_ctx[Y_PLANE]->pitch;
  948.                 p_pic->p->i_pixel_pitch = 4;
  949.                 p_pic->p->i_visible_pitch = 4 * p_pic->p_sys->p_ctx[Y_PLANE]->dim.w;
  951.                 p_pic->i_planes = 1;
  952.                 break;
  954.             case Pg_VIDEO_FORMAT_RGB8888:
  955.                 p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2');
  956.                 p_vout->output.i_rmask = 0x000000ff;
  957.                 p_vout->output.i_gmask = 0x0000ff00;
  958.                 p_vout->output.i_bmask = 0x00ff0000;
  960.                 p_pic->p->p_pixels = p_pic->p_sys->p_buf[Y_PLANE];
  961.                 p_pic->p->i_lines = p_pic->p_sys->p_ctx[Y_PLANE]->dim.h;
  962.                 p_pic->p->i_visible_lines = p_pic->p_sys->p_ctx[Y_PLANE]->dim.h;
  963.                 p_pic->p->i_pitch = p_pic->p_sys->p_ctx[Y_PLANE]->pitch;
  964.                 p_pic->p->i_pixel_pitch = 4;
  965.                 p_pic->p->i_visible_pitch = 4 * p_pic->p_sys->p_ctx[Y_PLANE]->dim.w;
  967.                 p_pic->i_planes = 1;
  968.                 break;
  969.         }
  971. #if 0
  972.     switch( p_vout->output.i_chroma )
  973.     {
  974. #ifdef MODULE_NAME_IS_xvideo
  975.         case VLC_FOURCC('Y','2','1','1'):
  977.             p_pic->p->p_pixels = p_pic->p_sys->p_image->data
  978.                                   + p_pic->p_sys->p_image->offsets[0];
  979.             p_pic->p->i_lines = p_vout->output.i_height;
  980.             p_pic->p->i_visible_lines = p_vout->output.i_height;
  981.             /* XXX: this just looks so plain wrong... check it out ! */
  982.             p_pic->p->i_pitch = p_pic->p_sys->p_image->pitches[0] / 4;
  983.             p_pic->p->i_pixel_pitch = 4;
  984.             p_pic->p->i_visible_pitch = p_pic->p->i_pitch;
  986.             p_pic->i_planes = 1;
  987.             break;
  988. #endif
  990. #endif
  992.     default:
  993.         /* This shouldn't happen ! */
  994.         break;
  995.     }
  997.     return 0;
  998. }
  1000. /*****************************************************************************
  1001.  * FreePicture: destroy a picture allocated with NewPicture
  1002.  *****************************************************************************
  1003.  * Destroy XImage AND associated data. If using Shm, detach shared memory
  1004.  * segment from server and process, then free it. The XDestroyImage manpage
  1005.  * says that both the image structure _and_ the data pointed to by the
  1006.  * image structure are freed, so no need to free p_image->data.
  1007.  *****************************************************************************/
  1008. static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
  1009. {
  1010.     if( ( p_vout->p_sys->i_mode == MODE_NORMAL_MEM ||
  1011.         p_vout->p_sys->i_mode == MODE_SHARED_MEM ) &&
  1012.         p_pic->p_sys->p_image )
  1013.     {
  1014.         PhReleaseImage( p_pic->p_sys->p_image );
  1015.         free( p_pic->p_sys->p_image );
  1016.     }
  1017.     else if( p_vout->p_sys->i_mode == MODE_VIDEO_MEM &&
  1018.              p_pic->p_sys->p_ctx[0] )
  1019.     {
  1020.         PhDCRelease( p_pic->p_sys->p_ctx[0] );
  1021.     }
  1023.     free( p_pic->p_sys );
  1024. }
  1027. static int ResizeOverlayOutput(vout_thread_t *p_vout)
  1028. {
  1029.     int i_width, i_height, i_x, i_y;
  1030.     int i_ret;
  1031.     PgScalerProps_t props;
  1033.     props.size   = sizeof( props );
  1034.     props.format = p_vout->p_sys->i_vc_format;
  1035.     props.flags  = Pg_SCALER_PROP_SCALER_ENABLE |
  1036.                           Pg_SCALER_PROP_DOUBLE_BUFFER;
  1038.     /* enable chroma keying if available */
  1039.     if( p_vout->p_sys->i_vc_flags & Pg_SCALER_CAP_DST_CHROMA_KEY )
  1040.     {
  1041.         props.flags |= Pg_SCALER_PROP_CHROMA_ENABLE;
  1042.     }
  1044.     /* set viewport position */
  1045.     props.viewport.ul.x = p_vout->p_sys->pos.x;
  1046.     props.viewport.ul.y = p_vout->p_sys->pos.y;
  1047.     if( !p_vout->b_fullscreen )
  1048.     {
  1049.         props.viewport.ul.x += p_vout->p_sys->frame.ul.x;
  1050.         props.viewport.ul.y += p_vout->p_sys->frame.ul.y;
  1051.     }
  1053.     /* set viewport dimension */
  1054.     vout_PlacePicture( p_vout, p_vout->p_sys->dim.w,
  1055.                            p_vout->p_sys->dim.h,
  1056.                            &i_x, &i_y, &i_width, &i_height );
  1058.     props.viewport.ul.x += i_x;
  1059.     props.viewport.ul.y += i_y;
  1060.     props.viewport.lr.x = i_width + props.viewport.ul.x;
  1061.     props.viewport.lr.y = i_height + props.viewport.ul.y;
  1063.     /* set source dimension */
  1064.     props.src_dim.w = p_vout->output.i_width;
  1065.     props.src_dim.h = p_vout->output.i_height;
  1067.     /* configure scaler channel */
  1068.     i_ret = PgConfigScalerChannel( p_vout->p_sys->p_channel, &props );
  1070.     if( i_ret == -1 )
  1071.     {
  1072.         msg_Err( p_vout, "unable to configure video channel" );
  1073.         return( 1 );
  1074.     }
  1076.     return ( 0 );
  1077. }
  1080. /*****************************************************************************
  1081.  * SetPalette: sets an 8 bpp palette
  1082.  *****************************************************************************
  1083.  * This function sets the palette given as an argument. It does not return
  1084.  * anything, but could later send information on which colors it was unable
  1085.  * to set.
  1086.  *****************************************************************************/
  1087. static void SetPalette( vout_thread_t *p_vout,
  1088.                         uint16_t *red, uint16_t *green, uint16_t *blue )
  1089. {
  1090.     int i;
  1092.     /* allocate palette */
  1093.     for( i = 0; i < 255; i++ )
  1094.     {
  1095.         /* kludge: colors are indexed reversely because color 255 seems
  1096.          * to be reserved for black even if we try to set it to white */
  1097.         p_vout->p_sys->p_colors[ i ] = PgRGB( red[ i ] >> 8, green[ i ] >> 8, blue[ i ] >> 8 );
  1098.     }
  1099. }