vout.c

VLC媒体播放程序

                if( ( p_ev->key_flags & Pk_KF_Key_Down ) &&
                    ( p_ev->key_flags & Pk_KF_Sym_Valid ) )
                {
                    switch( i_key )
                    {
                    case Pk_q:
                    case Pk_Q:
                        p_vout->p_vlc->b_die = 1;
                        break;

                    case Pk_f:
                    case Pk_F:
                        p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
                        break;

                    case Pk_c:
                    case Pk_C:
                        p_vout->b_grayscale = ! p_vout->b_grayscale;
                        p_vout->i_changes |= VOUT_GRAYSCALE_CHANGE;
                        break;

                    default:
                        break;
                    }
                }
            }
        }
    } while( i_ev != -1 && i_ev != 0 );

    free( p_event );

    /*
     * fullscreen
     */
    if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
    {
        PhDim_t dim;

        p_vout->b_fullscreen = !p_vout->b_fullscreen;
        p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;

        if( p_vout->b_fullscreen )
        {
            p_vout->p_sys->old_pos.x = p_vout->p_sys->pos.x;
            p_vout->p_sys->old_pos.y = p_vout->p_sys->pos.y;
            p_vout->p_sys->pos.x = p_vout->p_sys->pos.y = 0;
            dim.w = p_vout->p_sys->screen_dim.w + 1;
            dim.h = p_vout->p_sys->screen_dim.h + 1;
        }
        else
        {
            p_vout->p_sys->pos.x = p_vout->p_sys->old_pos.x;
            p_vout->p_sys->pos.y = p_vout->p_sys->old_pos.y;
            dim.w = p_vout->p_sys->old_dim.w + 1;
            dim.h = p_vout->p_sys->old_dim.h + 1;
        }

        /* modify render flags, border */
        PtSetResource( p_vout->p_sys->p_window,
            Pt_ARG_WINDOW_RENDER_FLAGS,
            p_vout->b_fullscreen ? Pt_FALSE : Pt_TRUE,
            Ph_WM_RENDER_BORDER | Ph_WM_RENDER_TITLE );

        /* set position and dimension */
        PtSetResource( p_vout->p_sys->p_window,
                       Pt_ARG_POS, &p_vout->p_sys->pos, 0 );
        PtSetResource( p_vout->p_sys->p_window,
                       Pt_ARG_DIM, &dim, 0 );

        /* mark as damaged to force redraw */
        PtDamageWidget( p_vout->p_sys->p_window );
    }

    /*
     * size change
     */
    if( p_vout->i_changes & VOUT_SIZE_CHANGE )
    {
        p_vout->i_changes &= ~VOUT_SIZE_CHANGE;

        if( p_vout->p_sys->i_mode == MODE_VIDEO_OVERLAY )
        {
            ResizeOverlayOutput(p_vout);
        }
#if 0
        else
        {
            p_vout->output.i_width = p_vout->p_sys->dim.w;
            p_vout->output.i_height = p_vout->p_sys->dim.h;
            p_vout->i_changes |= VOUT_YUV_CHANGE;

            QNXEnd( p_vout );
            if( QNXInit( p_vout ) )
            {
                msg_Err( p_vout, "cannot resize display" );
                return( 1 );
            }
        }
#endif

        msg_Dbg( p_vout, "video display resized (%dx%d)",
                         p_vout->p_sys->dim.w, p_vout->p_sys->dim.h );
    }

    /*
     * position change, move video channel
     */
    if( b_repos && p_vout->p_sys->i_mode == MODE_VIDEO_OVERLAY )
    {
        ResizeOverlayOutput(p_vout);
    }

    return( i_ev == -1 );
}

/*****************************************************************************
 * QNXDisplay: displays previously rendered output
 *****************************************************************************
 * This function send the currently rendered image to QNX server, wait until
 * it is displayed and switch the two rendering buffer, preparing next frame.
 *****************************************************************************/
static void QNXDisplay( vout_thread_t *p_vout, picture_t *p_pic )
{
    if( p_vout->p_sys->i_mode == MODE_NORMAL_MEM ||
        p_vout->p_sys->i_mode == MODE_SHARED_MEM )
    {
        PhPoint_t pos = { 0, 0 };

        PgSetRegion( PtWidgetRid( p_vout->p_sys->p_window ) );
        if (p_vout->p_sys->i_screen_depth == 8)
        {
            PgSetPalette( p_vout->p_sys->p_colors, 0, 0, 255, Pg_PALSET_SOFT, 0);
        }
        PgDrawPhImagemx( &pos, p_pic->p_sys->p_image, 0 );
        PgFlush();
    }
    else if( p_vout->p_sys->i_mode == MODE_VIDEO_MEM )
    {
        PhRect_t rc = { { 0, 0 }, { p_vout->output.i_width, p_vout->output.i_height } };

//        PgSetRegion( PtWidgetRid ( p_vout->p_sys->p_window ) );
        PgContextBlit( p_pic->p_sys->p_ctx[0], &rc, NULL, &rc );
        PgFlush();
    }
}

/*****************************************************************************
 * QNXInitDisplay: check screen resolution, depth, amount of video ram, etc
 *****************************************************************************/
static int QNXInitDisplay( vout_thread_t * p_vout )
{
    PgHWCaps_t hwcaps;
    PgDisplaySettings_t cfg;
    PgVideoModeInfo_t minfo;

    /* get graphics card hw capabilities */
    if( PgGetGraphicsHWCaps( &hwcaps ) != 0 )
    {
        msg_Err( p_vout, "unable to get gfx card capabilities" );
        return( 1 );
    }

    /* get current video mode */
    if( PgGetVideoMode( &cfg ) != 0 )
    {
        msg_Err( p_vout, "unable to get current video mode" );
        return( 1 );
    }

    /* get video mode info */
    if( PgGetVideoModeInfo( cfg.mode, &minfo ) != 0 )
    {
        msg_Err( p_vout, "unable to get info for video mode" );
        return( 1 );
    }

    if( p_vout->p_sys->i_mode == MODE_VIDEO_OVERLAY )
    {
        int i = 0;
        PgScalerCaps_t vcaps;

        if( ( p_vout->p_sys->p_channel =
            PgCreateVideoChannel( Pg_VIDEO_CHANNEL_SCALER, 0 ) ) == NULL )
        {
            msg_Err( p_vout, "unable to create video channel" );
            printf("errno = %d\n", errno);
            p_vout->p_sys->i_mode = MODE_NORMAL_MEM;
        }
        else
        {
            vcaps.size = sizeof( vcaps );
            while( PgGetScalerCapabilities( p_vout->p_sys->p_channel,
                                            i++, &vcaps ) == 0 )
            {
                printf("vcaps.format = 0x%x\n", vcaps.format);
                if( vcaps.format == Pg_VIDEO_FORMAT_YV12 ||
                    vcaps.format == Pg_VIDEO_FORMAT_YUV420 ||
                    vcaps.format == Pg_VIDEO_FORMAT_YUY2 ||
                    vcaps.format == Pg_VIDEO_FORMAT_UYVY ||
                    vcaps.format == Pg_VIDEO_FORMAT_RGB555 ||
                    vcaps.format == Pg_VIDEO_FORMAT_RGB565 ||
                    vcaps.format == Pg_VIDEO_FORMAT_RGB8888 )
                {
                    p_vout->p_sys->i_vc_flags  = vcaps.flags;
                    p_vout->p_sys->i_vc_format = vcaps.format;
                }

                vcaps.size = sizeof( vcaps );
            }

            if( p_vout->p_sys->i_vc_format == 0 )
            {
                msg_Warn( p_vout, "need YV12, YUY2 or RGB8888 overlay" );

                p_vout->p_sys->i_mode = MODE_NORMAL_MEM;
            }
        }
    }

    /* use video ram if we have enough available */
    if( p_vout->p_sys->i_mode == MODE_NORMAL_MEM &&
        (minfo.bits_per_pixel != 8) &&
        hwcaps.currently_available_video_ram >=
        ( ( minfo.width * minfo.height * minfo.bits_per_pixel * MAX_DIRECTBUFFERS) / 8 ) )
    {
        p_vout->p_sys->i_mode = MODE_VIDEO_MEM;
        printf("Using video memory...\n");
    }

    p_vout->p_sys->i_img_type = minfo.type;
    p_vout->p_sys->screen_dim.w = minfo.width;
    p_vout->p_sys->screen_dim.h = minfo.height;
    p_vout->p_sys->i_screen_depth = minfo.bits_per_pixel;

    switch( p_vout->p_sys->i_screen_depth )
    {
        case 8:
            p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
            p_vout->p_sys->i_bytes_per_pixel = 1;
            p_vout->output.pf_setpalette = SetPalette;
            break;

        case 15:
            p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5');
            p_vout->p_sys->i_bytes_per_pixel = 2;
            p_vout->output.i_rmask = 0x7c00;
            p_vout->output.i_gmask = 0x03e0;
            p_vout->output.i_bmask = 0x001f;
            break;

        case 16:
            p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');
            p_vout->p_sys->i_bytes_per_pixel = 2;
            p_vout->output.i_rmask = 0xf800;
            p_vout->output.i_gmask = 0x07e0;
            p_vout->output.i_bmask = 0x001f;
            break;

        case 24:
            p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4');
            p_vout->p_sys->i_bytes_per_pixel = 3;
            p_vout->output.i_rmask = 0xff0000;
            p_vout->output.i_gmask = 0x00ff00;
            p_vout->output.i_bmask = 0x0000ff;
            break;

        case 32:
        default:
            p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2');
            p_vout->p_sys->i_bytes_per_pixel = 4;
            p_vout->output.i_rmask = 0xff0000;
            p_vout->output.i_gmask = 0x00ff00;
            p_vout->output.i_bmask = 0x0000ff;
            break;
    }

    return( 0 );
}

/*****************************************************************************
 * QNXCreateWnd: create and realize the main window
 *****************************************************************************/
static int QNXCreateWnd( vout_thread_t * p_vout )
{
    PtArg_t args[8];
    PhPoint_t pos = { 0, 0 };
    PgColor_t color = Pg_BLACK;

    if( p_vout->p_sys->i_mode == MODE_VIDEO_OVERLAY )
    {
        if( p_vout->p_sys->i_vc_flags & Pg_SCALER_CAP_DST_CHROMA_KEY )
        {
            color = PgGetOverlayChromaColor();
        }
    }

    /* fullscreen, set dimension */
    if( p_vout->b_fullscreen )
    {
        p_vout->p_sys->old_dim.w = p_vout->p_sys->dim.w;
        p_vout->p_sys->old_dim.h = p_vout->p_sys->dim.h;
        p_vout->output.i_width = p_vout->p_sys->dim.w = p_vout->p_sys->screen_dim.w;
        p_vout->output.i_height = p_vout->p_sys->dim.h = p_vout->p_sys->screen_dim.h;
    }

    /* set window parameters */
    PtSetArg( &args[0], Pt_ARG_POS, &pos, 0 );
    PtSetArg( &args[1], Pt_ARG_DIM, &p_vout->p_sys->dim, 0 );
    PtSetArg( &args[2], Pt_ARG_FILL_COLOR, color, 0 );
    PtSetArg( &args[3], Pt_ARG_WINDOW_TITLE, "VideoLan Client", 0 );
    PtSetArg( &args[4], Pt_ARG_WINDOW_MANAGED_FLAGS, Pt_FALSE, Ph_WM_CLOSE );
    PtSetArg( &args[5], Pt_ARG_WINDOW_NOTIFY_FLAGS, Pt_TRUE,
              Ph_WM_MOVE | Ph_WM_RESIZE | Ph_WM_CLOSE );
    PtSetArg( &args[6], Pt_ARG_WINDOW_RENDER_FLAGS,
              p_vout->b_fullscreen ? Pt_FALSE : Pt_TRUE,
              Ph_WM_RENDER_BORDER | Ph_WM_RENDER_TITLE );

    /* create window */
    p_vout->p_sys->p_window = PtCreateWidget( PtWindow, Pt_NO_PARENT, 7, args);
    if( p_vout->p_sys->p_window == NULL )
    {
        msg_Err( p_vout, "unable to create window" );
        return( 1 );
    }

    /* realize the window widget */
    if( PtRealizeWidget( p_vout->p_sys->p_window ) != 0 )
    {
        msg_Err( p_vout, "unable to realize window widget" );
        PtDestroyWidget( p_vout->p_sys->p_window );
        return( 1 );
    }

    /* get window frame size */
    if( PtWindowFrameSize( NULL, p_vout->p_sys->p_window,
                           &p_vout->p_sys->frame ) != 0 )
    {
        msg_Err( p_vout, "unable to get window frame size" );
        PtDestroyWidget( p_vout->p_sys->p_window );
        return( 1 );
    }

    return( 0 );
}

/*****************************************************************************
 * QNXDestroyWnd: unrealize and destroy the main window
 *****************************************************************************/
static int QNXDestroyWnd( vout_thread_t * p_vout )
{
    /* destroy the window widget */
    PtUnrealizeWidget( p_vout->p_sys->p_window );
//    PtDestroyWidget( p_vout->p_sys->p_window );

    /* destroy video channel */
    if( p_vout->p_sys->i_mode == MODE_VIDEO_OVERLAY )
    {
        PgDestroyVideoChannel( p_vout->p_sys->p_channel );
    }

    return( 0 );
}