voutqt.m

VLC Player Source Code

    }
    else
    {
        int i_adj_height = i_width * p_vout->fmt_in.i_visible_height *
                           p_vout->fmt_in.i_sar_den /
                           ( p_vout->fmt_in.i_sar_num *
                             p_vout->fmt_in.i_visible_width );

        factor_x = FixDiv( Long2Fix( i_width ),
                           Long2Fix( p_vout->fmt_in.i_visible_width ) );
        factor_y = FixDiv( Long2Fix( i_adj_height ),
                           Long2Fix( p_vout->fmt_in.i_visible_height ) );

        i_offset_y = (i_height - i_adj_height) / 2;
    }

    SetIdentityMatrix( p_vout->p_sys->p_matrix );

    ScaleMatrix( p_vout->p_sys->p_matrix,
                 factor_x, factor_y,
                 Long2Fix(0), Long2Fix(0) );

    TranslateMatrix( p_vout->p_sys->p_matrix,
                 Long2Fix(i_offset_x), Long2Fix(i_offset_y) );
}

/*****************************************************************************
 * QTCreateSequence: create a new sequence
 *****************************************************************************
 * Returns 0 on success, 1 otherwise
 *****************************************************************************/
static int QTCreateSequence( vout_thread_t *p_vout )
{
    OSErr err;
    ImageDescriptionPtr p_descr;

    HLock( (Handle)p_vout->p_sys->h_img_descr );
    p_descr = *p_vout->p_sys->h_img_descr;

    p_descr->idSize = sizeof(ImageDescription);
    p_descr->cType = p_vout->p_sys->i_codec;
    p_descr->version = 2;
    p_descr->revisionLevel = 0;
    p_descr->vendor = 'mpla';
    p_descr->width = p_vout->output.i_width;
    p_descr->height = p_vout->output.i_height;
    p_descr->hRes = Long2Fix(72);
    p_descr->vRes = Long2Fix(72);
    p_descr->spatialQuality = codecLosslessQuality;
    p_descr->frameCount = 1;
    p_descr->clutID = -1;
    p_descr->dataSize = 0;
    p_descr->depth = 24;

    HUnlock( (Handle)p_vout->p_sys->h_img_descr );

    if( ( err = DecompressSequenceBeginS(
                              &p_vout->p_sys->i_seq,
                              p_vout->p_sys->h_img_descr,
                              NULL,
                              (p_descr->width * p_descr->height * 16) / 8,
                              p_vout->p_sys->p_qdport,
                              NULL, NULL,
                              p_vout->p_sys->p_matrix,
                              srcCopy, p_vout->p_sys->clip_mask,
                              codecFlagUseImageBuffer,
                              codecLosslessQuality,
                              bestSpeedCodec ) ) )
    {
        msg_Err( p_vout, "Failed to initialize QT: DecompressSequenceBeginS failed: %d", err );
        return( 1 );
    }

    return( 0 );
}

/*****************************************************************************
 * QTDestroySequence: destroy sequence
 *****************************************************************************/
static void QTDestroySequence( vout_thread_t *p_vout )
{
    CDSequenceEnd( p_vout->p_sys->i_seq );
}

/*****************************************************************************
 * QTNewPicture: allocate a picture
 *****************************************************************************
 * Returns 0 on success, 1 otherwise
 *****************************************************************************/
static int QTNewPicture( vout_thread_t *p_vout, picture_t *p_pic )
{
    /* We know the chroma, allocate a buffer which will be used
     * directly by the decoder */
    p_pic->p_sys = malloc( sizeof( picture_sys_t ) );

    if( p_pic->p_sys == NULL )
    {
        return( -1 );
    }

    vout_InitPicture( VLC_OBJECT( p_vout), p_pic, p_vout->output.i_chroma,
                      p_vout->output.i_width, p_vout->output.i_height,
                      p_vout->output.i_aspect );

    switch( p_vout->output.i_chroma )
    {
        case VLC_FOURCC('Y','U','Y','2'):
            p_pic->p_sys->i_size = p_vout->output.i_width * p_vout->output.i_height * 2;

            /* Allocate the memory buffer */
            p_pic->p_data_orig = p_pic->p_data = malloc( p_pic->p_sys->i_size );
            /* Memory is always 16-bytes aligned on OSX, so it does not
             * posix_memalign() */
            assert( (((uintptr_t)p_pic->p_data) % 16) == 0 );

            p_pic->p[0].p_pixels = p_pic->p_data;
            p_pic->p[0].i_lines = p_vout->output.i_height;
            p_pic->p[0].i_visible_lines = p_vout->output.i_height;
            p_pic->p[0].i_pitch = p_vout->output.i_width * 2;
            p_pic->p[0].i_pixel_pitch = 1;
            p_pic->p[0].i_visible_pitch = p_vout->output.i_width * 2;
            p_pic->i_planes = 1;

            p_pic->p_sys->p_data = (void *)p_pic->p[0].p_pixels;

            break;
 
        case VLC_FOURCC('I','4','2','0'):
            p_pic->p_sys->p_data = (void *)&p_pic->p_sys->pixmap_i420;
            p_pic->p_sys->i_size = sizeof(PlanarPixmapInfoYUV420);
 
            /* Allocate the memory buffer */
            p_pic->p_data_orig = p_pic->p_data = malloc( p_vout->output.i_width
                                     * p_vout->output.i_height * 3 / 2 );
            /* Memory is always 16-bytes aligned on OSX, so it does not
             * posix_memalign() */
            assert( (((uintptr_t)p_pic->p_data) % 16) == 0 );

            /* Y buffer */
            p_pic->Y_PIXELS = p_pic->p_data;
            p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
            p_pic->p[Y_PLANE].i_visible_lines = p_vout->output.i_height;
            p_pic->p[Y_PLANE].i_pitch = p_vout->output.i_width;
            p_pic->p[Y_PLANE].i_pixel_pitch = 1;
            p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width;

            /* U buffer */
            p_pic->U_PIXELS = p_pic->Y_PIXELS + p_vout->output.i_height * p_vout->output.i_width;
            p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
            p_pic->p[U_PLANE].i_visible_lines = p_vout->output.i_height / 2;
            p_pic->p[U_PLANE].i_pitch = p_vout->output.i_width / 2;
            p_pic->p[U_PLANE].i_pixel_pitch = 1;
            p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2;

            /* V buffer */
            p_pic->V_PIXELS = p_pic->U_PIXELS + p_vout->output.i_height * p_vout->output.i_width / 4;
            p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
            p_pic->p[V_PLANE].i_visible_lines = p_vout->output.i_height / 2;
            p_pic->p[V_PLANE].i_pitch = p_vout->output.i_width / 2;
            p_pic->p[V_PLANE].i_pixel_pitch = 1;
            p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2;

            /* We allocated 3 planes */
            p_pic->i_planes = 3;

#define P p_pic->p_sys->pixmap_i420
            P.componentInfoY.offset = (void *)p_pic->Y_PIXELS
                                       - p_pic->p_sys->p_data;
            P.componentInfoCb.offset = (void *)p_pic->U_PIXELS
                                        - p_pic->p_sys->p_data;
            P.componentInfoCr.offset = (void *)p_pic->V_PIXELS
                                        - p_pic->p_sys->p_data;

            P.componentInfoY.rowBytes = p_vout->output.i_width;
            P.componentInfoCb.rowBytes = p_vout->output.i_width / 2;
            P.componentInfoCr.rowBytes = p_vout->output.i_width / 2;
#undef P
            break;
 
        default:
            /* Unknown chroma, tell the guy to get lost */
            free( p_pic->p_sys );
            msg_Err( p_vout, "Unknown chroma format 0x%.8x (%4.4s)",
                     p_vout->output.i_chroma, (char*)&p_vout->output.i_chroma );
            p_pic->i_planes = 0;
            return( -1 );
    }

    return( 0 );
}

/*****************************************************************************
 * QTFreePicture: destroy a picture allocated with QTNewPicture
 *****************************************************************************/
static void QTFreePicture( vout_thread_t *p_vout, picture_t *p_pic )
{
    switch( p_vout->output.i_chroma )
    {
        case VLC_FOURCC('I','4','2','0'):
            free( p_pic->p_data_orig );
            break;
    }

    free( p_pic->p_sys );
}

/*****************************************************************************
 * VLCQTView implementation
 *****************************************************************************/
@implementation VLCQTView

/* This function will reset the o_vout_view. It's useful to go fullscreen. */
+ (void)resetVout: (vout_thread_t *)p_vout
{
    QTDestroySequence( p_vout );

    if( p_vout->b_fullscreen )
    {
    if( !p_vout->p_sys->b_embedded )
    {
        /* Save window size and position */
        p_vout->p_sys->s_frame.size =
        [p_vout->p_sys->o_vout_view frame].size;
        p_vout->p_sys->s_frame.origin =
        [[p_vout->p_sys->o_vout_view getWindow] frame].origin;
        p_vout->p_sys->b_saved_frame = true;
    }
        else
        {
            var_DelCallback(p_vout->p_libvlc, "drawableredraw", DrawableRedraw, p_vout);
            DisposeRgn(p_vout->p_sys->clip_mask);
        }
    }

    if( p_vout->b_fullscreen || !p_vout->p_sys->b_embedded )
    {
    Rect s_rect;
        p_vout->p_sys->clip_mask = NULL;
#define o_qtview p_vout->p_sys->o_qtview
    o_qtview = [[VLCQTView alloc] initWithVout: p_vout];
    [o_qtview autorelease];
    
    if( p_vout->p_sys->b_saved_frame )
    {
        p_vout->p_sys->o_vout_view = [VLCVoutView getVoutView: p_vout
        subView: o_qtview
        frame: &p_vout->p_sys->s_frame];
    }
    else
    {
        p_vout->p_sys->o_vout_view = [VLCVoutView getVoutView: p_vout
        subView: o_qtview frame: nil];
    }

    /* Retrieve the QuickDraw port */
    [o_qtview lockFocus];
    p_vout->p_sys->p_qdport = [o_qtview qdPort];
    [o_qtview unlockFocus];
#undef o_qtview
    GetPortBounds( p_vout->p_sys->p_qdport, &s_rect );
    p_vout->p_sys->i_origx = s_rect.left;
    p_vout->p_sys->i_origy = s_rect.top;
    p_vout->p_sys->i_width = s_rect.right - s_rect.left;
    p_vout->p_sys->i_height = s_rect.bottom - s_rect.top;
    }
    else
    {
        /* Create the clipping mask */
        p_vout->p_sys->clip_mask = NewRgn();
    UpdateEmbeddedGeometry(p_vout);
    var_AddCallback(p_vout->p_libvlc, "drawableredraw", DrawableRedraw, p_vout);
    }
    QTScaleMatrix( p_vout );

    if( QTCreateSequence( p_vout ) )
    {
        msg_Err( p_vout, "unable to initialize QT: QTCreateSequence failed" );
        return;
    }
}

- (id) initWithVout:(vout_thread_t *)_p_vout
{
    p_vout = _p_vout;
    return [super init];
}

- (void)drawRect:(NSRect)rect
{
    [[NSColor blackColor] set];
    NSRectFill( rect );
    [super drawRect: rect];

    p_vout->i_changes |= VOUT_SIZE_CHANGE;
}

@end