vout.m 33.1 KB
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/*****************************************************************************
 * vout.m: MacOS X video output plugin
 *****************************************************************************
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 * Copyright (C) 2001-2003 VideoLAN
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 * $Id: vout.m,v 1.16 2003/01/23 23:51:13 massiot Exp $
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 *
 * Authors: Colin Delacroix <colin@zoy.org>
 *          Florian G. Pflug <fgp@phlo.org>
 *          Jon Lech Johansen <jon-vl@nanocrew.net>
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 *          Derk-Jan Hartman <thedj@users.sourceforge.net>
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 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#include <errno.h>                                                 /* ENOMEM */
#include <stdlib.h>                                                /* free() */
#include <string.h>                                            /* strerror() */

#include <vlc/vlc.h>
#include <vlc/vout.h>
#include <vlc/aout.h>
#include <vlc/intf.h>

#include <Cocoa/Cocoa.h>
#include <QuickTime/QuickTime.h>

#include "intf.h"
#include "vout.h"

#define QT_MAX_DIRECTBUFFERS 10

struct picture_sys_t
{
    void *p_info;
    unsigned int i_size;

    /* When using I420 output */
    PlanarPixmapInfoYUV420 pixmap_i420;
};

/*****************************************************************************
 * Local prototypes
 *****************************************************************************/
static int  vout_Init      ( vout_thread_t * );
static void vout_End       ( vout_thread_t * );
static int  vout_Manage    ( vout_thread_t * );
static void vout_Display   ( vout_thread_t *, picture_t * );

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static int  CoSendRequest      ( vout_thread_t *, SEL );
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static int  CoCreateWindow     ( vout_thread_t * );
static int  CoDestroyWindow    ( vout_thread_t * );
static int  CoToggleFullscreen ( vout_thread_t * );

static void QTScaleMatrix      ( vout_thread_t * );
static int  QTCreateSequence   ( vout_thread_t * );
static void QTDestroySequence  ( vout_thread_t * );
static int  QTNewPicture       ( vout_thread_t *, picture_t * );
static void QTFreePicture      ( vout_thread_t *, picture_t * );

/*****************************************************************************
 * OpenVideo: allocates MacOS X video thread output method
 *****************************************************************************
 * This function allocates and initializes a MacOS X vout method.
 *****************************************************************************/
int E_(OpenVideo) ( vlc_object_t *p_this )
{   
    vout_thread_t * p_vout = (vout_thread_t *)p_this;
    OSErr err;
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    int i_timeout;
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    p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
    if( p_vout->p_sys == NULL )
    {
        msg_Err( p_vout, "out of memory" );
        return( 1 );
    }

    memset( p_vout->p_sys, 0, sizeof( vout_sys_t ) );

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    /* Wait for a MacOS X interface to appear. Timeout is 2 seconds. */
    for( i_timeout = 20 ; i_timeout-- ; )
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    {
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        if( NSApp == NULL )
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        {
            msleep( INTF_IDLE_SLEEP );
        }
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    }

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    if( NSApp == NULL )
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    {
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        msg_Err( p_vout, "no MacOS X interface present" );
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        free( p_vout->p_sys );
        return( 1 );
    }

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    if( [NSApp respondsToSelector: @selector(getIntf)] )
    {
        intf_thread_t * p_intf;

        for( i_timeout = 10 ; i_timeout-- ; )
        {
            if( ( p_intf = [NSApp getIntf] ) == NULL )
            {
                msleep( INTF_IDLE_SLEEP );
            }
        }

        if( p_intf == NULL )
        {
            msg_Err( p_vout, "MacOS X intf has getIntf, but is NULL" );
            free( p_vout->p_sys );
            return( 1 );
        }
    }

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    p_vout->p_sys->h_img_descr = 
        (ImageDescriptionHandle)NewHandleClear( sizeof(ImageDescription) );
    p_vout->p_sys->p_matrix = (MatrixRecordPtr)malloc( sizeof(MatrixRecord) );
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    p_vout->p_sys->p_fullscreen_state = NULL;
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    p_vout->p_sys->b_mouse_pointer_visible = 1;

    /* set window size */
    p_vout->p_sys->s_rect.size.width = p_vout->i_window_width;
    p_vout->p_sys->s_rect.size.height = p_vout->i_window_height;

    if( ( err = EnterMovies() ) != noErr )
    {
        msg_Err( p_vout, "EnterMovies failed: %d", err );
        free( p_vout->p_sys->p_matrix );
        DisposeHandle( (Handle)p_vout->p_sys->h_img_descr );
        free( p_vout->p_sys );
        return( 1 );
    } 

    if( vout_ChromaCmp( p_vout->render.i_chroma, VLC_FOURCC('I','4','2','0') ) )
    {
        err = FindCodec( kYUV420CodecType, bestSpeedCodec,
                         nil, &p_vout->p_sys->img_dc );
        if( err == noErr && p_vout->p_sys->img_dc != 0 )
        {
            p_vout->output.i_chroma = VLC_FOURCC('I','4','2','0');
            p_vout->p_sys->i_codec = kYUV420CodecType;
        }
        else
        {
            msg_Err( p_vout, "failed to find an appropriate codec" );
        }
    }
    else
    {
        msg_Err( p_vout, "chroma 0x%08x not supported",
                         p_vout->render.i_chroma );
    }

    if( p_vout->p_sys->img_dc == 0 )
    {
        free( p_vout->p_sys->p_matrix );
        DisposeHandle( (Handle)p_vout->p_sys->h_img_descr );
        free( p_vout->p_sys );
        return( 1 );        
    }

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    NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];
    NSArray * o_screens = [NSScreen screens];
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    if( [o_screens count] > 0 && var_Type( p_vout, "video-device" ) == 0 )
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    {
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        int i = 1;
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        vlc_value_t val;
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        NSScreen * o_screen;

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        int i_option = config_GetInt( p_vout, "macosx-vdev" );

        var_Create( p_vout, "video-device", VLC_VAR_STRING |
                                            VLC_VAR_HASCHOICE ); 
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        NSEnumerator * o_enumerator = [o_screens objectEnumerator];

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        while( (o_screen = [o_enumerator nextObject]) != NULL )
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        {
            char psz_temp[255];
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            NSRect s_rect = [o_screen frame];

            snprintf( psz_temp, sizeof(psz_temp)/sizeof(psz_temp[0])-1, 
                      "%s %d (%dx%d)", _("Screen"), i,
                      (int)s_rect.size.width, (int)s_rect.size.height ); 

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            val.psz_string = psz_temp;
            var_Change( p_vout, "video-device", VLC_VAR_ADDCHOICE, &val );
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            if( ( i - 1 ) == i_option )
            {
                var_Set( p_vout, "video-device", val );
            }

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            i++;
        }
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        var_AddCallback( p_vout, "video-device", vout_VarCallback,
                         NULL );

        val.b_bool = VLC_TRUE;
        var_Set( p_vout, "intf-change", val );
    }
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    [o_pool release];
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    if( CoCreateWindow( p_vout ) )
    {
        msg_Err( p_vout, "unable to create window" );
        free( p_vout->p_sys->p_matrix );
        DisposeHandle( (Handle)p_vout->p_sys->h_img_descr );
        free( p_vout->p_sys ); 
        return( 1 );
    }

    p_vout->pf_init = vout_Init;
    p_vout->pf_end = vout_End;
    p_vout->pf_manage = vout_Manage;
    p_vout->pf_render = NULL;
    p_vout->pf_display = vout_Display;

    return( 0 );
}

/*****************************************************************************
 * vout_Init: initialize video thread output method
 *****************************************************************************/
static int vout_Init( vout_thread_t *p_vout )
{
    int i_index;
    picture_t *p_pic;

    I_OUTPUTPICTURES = 0;

    /* Initialize the output structure; we already found a codec,
     * and the corresponding chroma we will be using. Since we can
     * arbitrary scale, stick to the coordinates and aspect. */
    p_vout->output.i_width  = p_vout->render.i_width;
    p_vout->output.i_height = p_vout->render.i_height;
    p_vout->output.i_aspect = p_vout->render.i_aspect;

    SetPort( p_vout->p_sys->p_qdport );
    QTScaleMatrix( p_vout );

    if( QTCreateSequence( p_vout ) )
    {
        msg_Err( p_vout, "unable to create sequence" );
        return( 1 );
    }

    /* Try to initialize up to QT_MAX_DIRECTBUFFERS direct buffers */
    while( I_OUTPUTPICTURES < QT_MAX_DIRECTBUFFERS )
    {
        p_pic = NULL;

        /* Find an empty picture slot */
        for( i_index = 0; i_index < VOUT_MAX_PICTURES; i_index++ )
        {
            if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
            {
                p_pic = p_vout->p_picture + i_index;
                break;
            }
        }

        /* Allocate the picture */
        if( p_pic == NULL || QTNewPicture( p_vout, p_pic ) )
        {
            break;
        }

        p_pic->i_status = DESTROYED_PICTURE;
        p_pic->i_type   = DIRECT_PICTURE;

        PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;

        I_OUTPUTPICTURES++;
    }

    return( 0 );
}

/*****************************************************************************
 * vout_End: terminate video thread output method
 *****************************************************************************/
static void vout_End( vout_thread_t *p_vout )
{
    int i_index;

    QTDestroySequence( p_vout );

    /* Free the direct buffers we allocated */
    for( i_index = I_OUTPUTPICTURES; i_index; )
    {
        i_index--;
        QTFreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
    }
}

/*****************************************************************************
 * CloseVideo: destroy video thread output method
 *****************************************************************************/
void E_(CloseVideo) ( vlc_object_t *p_this )
{       
    vout_thread_t * p_vout = (vout_thread_t *)p_this;     

    if( CoDestroyWindow( p_vout ) )
    {
        msg_Err( p_vout, "unable to destroy window" );
    }

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    if ( p_vout->p_sys->p_fullscreen_state != NULL )
        EndFullScreen ( p_vout->p_sys->p_fullscreen_state, NULL );

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    ExitMovies();

    free( p_vout->p_sys->p_matrix );
    DisposeHandle( (Handle)p_vout->p_sys->h_img_descr );

    free( p_vout->p_sys );
}

/*****************************************************************************
 * vout_Manage: handle events
 *****************************************************************************
 * This function should be called regularly by video output thread. It manages
 * console events. It returns a non null value on error.
 *****************************************************************************/
static int vout_Manage( vout_thread_t *p_vout )
{    
    if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
    {
        if( CoToggleFullscreen( p_vout ) )  
        {
            return( 1 );
        }

        p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
    }

    if( p_vout->i_changes & VOUT_SIZE_CHANGE ) 
    {
        QTScaleMatrix( p_vout );
        SetDSequenceMatrix( p_vout->p_sys->i_seq, 
                            p_vout->p_sys->p_matrix );
 
        p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
    }

    /* hide/show mouse cursor */
    if( p_vout->p_sys->b_mouse_moved ||
        p_vout->p_sys->i_time_mouse_last_moved )
    {
        vlc_bool_t b_change = 0;

        if( !p_vout->p_sys->b_mouse_pointer_visible )
        {
            CGDisplayShowCursor( kCGDirectMainDisplay );
            b_change = 1;
        }
#if 0
        else if( !p_vout->p_sys->b_mouse_moved && 
            mdate() - p_vout->p_sys->i_time_mouse_last_moved > 2000000 &&
            p_vout->p_sys->b_mouse_pointer_visible )
        {
            CGDisplayHideCursor( kCGDirectMainDisplay );
            b_change = 1;
        }
#endif

        if( b_change )
        {
            p_vout->p_sys->i_time_mouse_last_moved = 0;
            p_vout->p_sys->b_mouse_moved = 0;
            p_vout->p_sys->b_mouse_pointer_visible =
                !p_vout->p_sys->b_mouse_pointer_visible;
        }
    }

    return( 0 );
}

/*****************************************************************************
 * vout_Display: displays previously rendered output
 *****************************************************************************
 * This function sends the currently rendered image to the display.
 *****************************************************************************/
static void vout_Display( vout_thread_t *p_vout, picture_t *p_pic )
{
    OSErr err;
    CodecFlags flags;

    if( ( err = DecompressSequenceFrameS( 
                    p_vout->p_sys->i_seq,
                    p_pic->p_sys->p_info,
                    p_pic->p_sys->i_size,                    
                    codecFlagUseImageBuffer, &flags, nil ) != noErr ) )
    {
        msg_Err( p_vout, "DecompressSequenceFrameS failed: %d", err );
    }
    else
    {
        QDFlushPortBuffer( p_vout->p_sys->p_qdport, nil );
    }
}

/*****************************************************************************
 * CoSendRequest: send request to interface thread
 *****************************************************************************
 * Returns 0 on success, 1 otherwise
 *****************************************************************************/
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static int CoSendRequest( vout_thread_t *p_vout, SEL sel )
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{
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    int i_ret = 0;
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    NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];
    VLCVout * o_vlv = [[[VLCVout alloc] init] autorelease];
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    if( [o_vlv respondsToSelector: @selector(performSelectorOnMainThread:
                                             withObject:waitUntilDone:)] )
    {
        [o_vlv performSelectorOnMainThread: sel
            withObject: [NSValue valueWithPointer: p_vout]
            waitUntilDone: YES];
    }
    else if( [NSApp respondsToSelector: @selector(getIntf)] )
    {
        NSArray * o_array;
        NSValue * o_value;
        NSPort * o_recv_port;
        NSInvocation * o_inv;
        NSPortMessage * o_msg;
        intf_thread_t * p_intf;
        NSMethodSignature * o_sig;

        p_intf = (intf_thread_t *)[NSApp getIntf];

        o_recv_port = [[NSPort port] retain];
        o_value = [NSValue valueWithPointer: p_vout];

        o_sig = [VLCVout instanceMethodSignatureForSelector: sel];
        o_inv = [NSInvocation invocationWithMethodSignature: o_sig];
        [o_inv setArgument: &o_value atIndex: 2];
        [o_inv setTarget: o_vlv];
        [o_inv setSelector: sel];

        o_array = [NSArray arrayWithObject:
            [NSData dataWithBytes: &o_inv length: sizeof(o_inv)]];
        o_msg = [[NSPortMessage alloc]
            initWithSendPort: p_intf->p_sys->o_sendport
            receivePort: o_recv_port components: o_array];

        p_vout->p_sys->o_lock =
            [[NSConditionLock alloc] initWithCondition: 0];
        [o_msg sendBeforeDate: [NSDate distantPast]];
        [p_vout->p_sys->o_lock lockWhenCondition: 1];
        [p_vout->p_sys->o_lock unlock];
        [p_vout->p_sys->o_lock release];
        p_vout->p_sys->o_lock = nil;

        [o_msg release];
        [o_recv_port release];
    }
    else
    {
        msg_Err( p_vout, "SendRequest: no way to communicate with mt" );
        i_ret = 1;
    }
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    [o_pool release];

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    return( i_ret );
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}

/*****************************************************************************
 * CoCreateWindow: create new window 
 *****************************************************************************
 * Returns 0 on success, 1 otherwise
 *****************************************************************************/
static int CoCreateWindow( vout_thread_t *p_vout )
{
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    if( CoSendRequest( p_vout, @selector(createWindow:) ) )
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    {
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        msg_Err( p_vout, "CoSendRequest (createWindow) failed" );
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        return( 1 );
    }

    return( 0 );
}

/*****************************************************************************
 * CoDestroyWindow: destroy window 
 *****************************************************************************
 * Returns 0 on success, 1 otherwise
 *****************************************************************************/
static int CoDestroyWindow( vout_thread_t *p_vout )
{
    if( !p_vout->p_sys->b_mouse_pointer_visible )
    {
        CGDisplayShowCursor( kCGDirectMainDisplay );
        p_vout->p_sys->b_mouse_pointer_visible = 1;
    }

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    if( CoSendRequest( p_vout, @selector(destroyWindow:) ) )
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    {
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        msg_Err( p_vout, "CoSendRequest (destroyWindow) failed" );
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        return( 1 );
    }

    return( 0 );
}

/*****************************************************************************
 * CoToggleFullscreen: toggle fullscreen 
 *****************************************************************************
 * Returns 0 on success, 1 otherwise
 *****************************************************************************/
static int CoToggleFullscreen( vout_thread_t *p_vout )
{
    QTDestroySequence( p_vout );

    if( CoDestroyWindow( p_vout ) )
    {
        msg_Err( p_vout, "unable to destroy window" );
        return( 1 );
    }
    
    p_vout->b_fullscreen = !p_vout->b_fullscreen;

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    config_PutInt( p_vout, "fullscreen", p_vout->b_fullscreen );
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    if( CoCreateWindow( p_vout ) )
    {
        msg_Err( p_vout, "unable to create window" );
        return( 1 );
    }

    SetPort( p_vout->p_sys->p_qdport );
    QTScaleMatrix( p_vout );

    if( QTCreateSequence( p_vout ) )
    {
        msg_Err( p_vout, "unable to create sequence" );
        return( 1 ); 
    } 

    return( 0 );
}

/*****************************************************************************
 * QTScaleMatrix: scale matrix 
 *****************************************************************************/
static void QTScaleMatrix( vout_thread_t *p_vout )
{
    Rect s_rect;
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    unsigned int i_width, i_height;
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    Fixed factor_x, factor_y;
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    unsigned int i_offset_x = 0;
    unsigned int i_offset_y = 0;
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    GetPortBounds( p_vout->p_sys->p_qdport, &s_rect );

    i_width = s_rect.right - s_rect.left;
    i_height = s_rect.bottom - s_rect.top;

    if( i_height * p_vout->output.i_aspect < i_width * VOUT_ASPECT_FACTOR )
    {
        int i_adj_width = i_height * p_vout->output.i_aspect /
                          VOUT_ASPECT_FACTOR;

        factor_x = FixDiv( Long2Fix( i_adj_width ),
                           Long2Fix( p_vout->output.i_width ) );
        factor_y = FixDiv( Long2Fix( i_height ),
                           Long2Fix( p_vout->output.i_height ) );

        i_offset_x = (i_width - i_adj_width) / 2;
    }
    else
    {
        int i_adj_height = i_width * VOUT_ASPECT_FACTOR /
                           p_vout->output.i_aspect;

        factor_x = FixDiv( Long2Fix( i_width ),
                           Long2Fix( p_vout->output.i_width ) );
        factor_y = FixDiv( Long2Fix( i_adj_height ),
                           Long2Fix( p_vout->output.i_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 = 1;
    p_descr->revisionLevel = 0;
    p_descr->vendor = 'appl';
    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, 0,
                              p_vout->p_sys->p_qdport,
                              NULL, NULL,
                              p_vout->p_sys->p_matrix,
                              0, NULL,
                              codecFlagUseImageBuffer,
                              codecLosslessQuality,
                              p_vout->p_sys->img_dc ) ) )
    {
        msg_Err( p_vout, "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 )
{
    int i_width  = p_vout->output.i_width;
    int i_height = p_vout->output.i_height;

    /* 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 );
    }

    switch( p_vout->output.i_chroma )
    {
        case VLC_FOURCC('I','4','2','0'):

            p_pic->p_sys->p_info = (void *)&p_pic->p_sys->pixmap_i420;
            p_pic->p_sys->i_size = sizeof(PlanarPixmapInfoYUV420);

            /* Allocate the memory buffer */
            p_pic->p_data = vlc_memalign( &p_pic->p_data_orig,
                                          16, i_width * i_height * 3 / 2 );

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

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

            /* V buffer */
            p_pic->V_PIXELS = p_pic->U_PIXELS + i_height * i_width / 4;
            p_pic->p[V_PLANE].i_lines = i_height / 2;
            p_pic->p[V_PLANE].i_pitch = i_width / 2;
            p_pic->p[V_PLANE].i_pixel_pitch = 1;
            p_pic->p[V_PLANE].i_visible_pitch = 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_info;
            P.componentInfoCb.offset = (void *)p_pic->U_PIXELS
                                        - p_pic->p_sys->p_info;
            P.componentInfoCr.offset = (void *)p_pic->V_PIXELS
                                        - p_pic->p_sys->p_info;

            P.componentInfoY.rowBytes = i_width;
            P.componentInfoCb.rowBytes = i_width / 2;
            P.componentInfoCr.rowBytes = i_width / 2;
#undef P

            break;

    default:
        /* Unknown chroma, tell the guy to get lost */
        free( p_pic->p_sys );
        msg_Err( p_vout, "never heard of chroma 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 );
}

/*****************************************************************************
 * VLCWindow implementation
 *****************************************************************************/
@implementation VLCWindow

- (void)setVout:(vout_thread_t *)_p_vout
{
    p_vout = _p_vout;
}

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- (vout_thread_t *)getVout
{
    return( p_vout );
}

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- (void)toggleFullscreen
{
    p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
}

- (BOOL)isFullscreen
{
    return( p_vout->b_fullscreen );
}

- (BOOL)canBecomeKeyWindow
{
    return( YES );
}

- (void)keyDown:(NSEvent *)o_event
{
    unichar key = 0;

    if( [[o_event characters] length] )
    {
        key = [[o_event characters] characterAtIndex: 0];
    }

    switch( key )
    {
        case 'f': case 'F':
            [self toggleFullscreen];
            break;

        case (unichar)0x1b: /* escape */
            if( [self isFullscreen] )
            {
                [self toggleFullscreen];
            }
            break;

        case 'q': case 'Q':
            p_vout->p_vlc->b_die = VLC_TRUE;
            break;

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        case ' ':
            input_SetStatus( p_vout, INPUT_STATUS_PAUSE );
            break;

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        default:
            [super keyDown: o_event];
            break;
    }
}

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/* This is actually the same as VLCControls::stop. */
- (BOOL)windowShouldClose:(id)sender
{
    intf_thread_t * p_intf = [NSApp getIntf];
    playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
                                                       FIND_ANYWHERE );
    if( p_playlist == NULL )      
    {
        return NO;
    }

    playlist_Stop( p_playlist );
    vlc_object_release( p_playlist );
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    p_intf->p_sys->b_stopping = 1;
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    /* The window will be closed by the intf later. */
    return NO;
}

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@end

/*****************************************************************************
 * VLCView implementation
 *****************************************************************************/
@implementation VLCView

- (void)drawRect:(NSRect)rect
{
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    vout_thread_t * p_vout;
    id o_window = [self window];
    p_vout = (vout_thread_t *)[o_window getVout];

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    [[NSColor blackColor] set];
    NSRectFill( rect );
    [super drawRect: rect];

    p_vout->i_changes |= VOUT_SIZE_CHANGE;
}

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- (BOOL)acceptsFirstResponder
{
    return( YES );
}

- (BOOL)becomeFirstResponder
{
    [[self window] setAcceptsMouseMovedEvents: YES];
    return( YES );
}

- (BOOL)resignFirstResponder
{
    [[self window] setAcceptsMouseMovedEvents: NO];
    return( YES );
}

- (void)mouseUp:(NSEvent *)o_event
{
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    vout_thread_t * p_vout;
    id o_window = [self window];
    p_vout = (vout_thread_t *)[o_window getVout];

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    switch( [o_event type] )
    {
        case NSLeftMouseUp:
        {
            vlc_value_t val;
            val.b_bool = VLC_TRUE;
            var_Set( p_vout, "mouse-clicked", val );        
        }
        break;

        default:
            [super mouseUp: o_event];
        break;
    }
}

- (void)mouseMoved:(NSEvent *)o_event
{
    NSPoint ml;
    NSRect s_rect;
    BOOL b_inside;

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    vout_thread_t * p_vout;
    id o_window = [self window];
    p_vout = (vout_thread_t *)[o_window getVout];

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    s_rect = [self bounds];
    ml = [self convertPoint: [o_event locationInWindow] fromView: nil];
    b_inside = [self mouse: ml inRect: s_rect];

    if( b_inside )
    {
        vlc_value_t val;
        int i_width, i_height, i_x, i_y;

        vout_PlacePicture( p_vout, (unsigned int)s_rect.size.width,
                                   (unsigned int)s_rect.size.height,
                                   &i_x, &i_y, &i_width, &i_height );

        val.i_int = ( ((int)ml.x) - i_x ) * 
                    p_vout->render.i_width / i_width;
        var_Set( p_vout, "mouse-x", val );

        val.i_int = ( ((int)ml.y) - i_y ) * 
                    p_vout->render.i_height / i_height;
        var_Set( p_vout, "mouse-y", val );

        val.b_bool = VLC_TRUE;
        var_Set( p_vout, "mouse-moved", val );
    }
    else
    {
        [super mouseMoved: o_event];
    }
}

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@end
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/*****************************************************************************
 * VLCVout implementation
 *****************************************************************************/
@implementation VLCVout

- (void)createWindow:(NSValue *)o_value
{
    vlc_value_t val;
    VLCView * o_view;
    NSScreen * o_screen;
    vout_thread_t * p_vout;
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    id o_title;
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    vlc_bool_t b_main_screen;
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    intf_thread_t * p_intf = [NSApp getIntf];
    playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
                                               FIND_ANYWHERE );
    
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    p_vout = (vout_thread_t *)[o_value pointerValue];

    p_vout->p_sys->o_window = [VLCWindow alloc];
    [p_vout->p_sys->o_window setVout: p_vout];
    [p_vout->p_sys->o_window setReleasedWhenClosed: YES];

    if( var_Get( p_vout, "video-device", &val ) < 0 )
    {
        o_screen = [NSScreen mainScreen];
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        b_main_screen = 1;
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    }
    else
    {
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        unsigned int i_index = 0;
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        NSArray *o_screens = [NSScreen screens];

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        if( !sscanf( val.psz_string, _("Screen %d"), &i_index ) ||
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            [o_screens count] < i_index )
        {
            o_screen = [NSScreen mainScreen];
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            b_main_screen = 1;
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        }
        else
        {
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            i_index--;
            o_screen = [o_screens objectAtIndex: i_index];
            config_PutInt( p_vout, "macosx-vdev", i_index );
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