vout.m

VLC Player Source Code

/*****************************************************************************
 * vout.m: MacOS X video output module
 *****************************************************************************
 * Copyright (C) 2001-2008 the VideoLAN team
 * $Id$
 *
 * Authors: Colin Delacroix <[e-mail]>
 *          Florian G. Pflug <[e-mail]>
 *          Jon Lech Johansen <[e-mail]>
 *          Derk-Jan Hartman <hartman at videolan dot org>
 *          Eric Petit <[e-mail]>
 *          Benjamin Pracht <bigben at videolan dot org>
 *          Felix Paul Kühne <fkuehne at videolan dot org>
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

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

/* BeginFullScreen, EndFullScreen */
#include <QuickTime/QuickTime.h>

#include <vlc_keys.h>

#include "intf.h"
#include "fspanel.h"
#include "vout.h"
#import "controls.h"
#import "embeddedwindow.h"

/*****************************************************************************
 * DeviceCallback: Callback triggered when the video-device variable is changed
 *****************************************************************************/
int DeviceCallback( vlc_object_t *p_this, const char *psz_variable,
                     vlc_value_t old_val, vlc_value_t new_val, void *param )
{
    vlc_value_t val;
    vout_thread_t *p_vout = (vout_thread_t *)p_this;

    msg_Dbg( p_vout, "set %d", new_val.i_int );
    var_Create( p_vout->p_libvlc, "video-device", VLC_VAR_INTEGER );
    var_Set( p_vout->p_libvlc, "video-device", new_val );

    val.b_bool = true;
    var_Set( p_vout, "intf-change", val );
    return VLC_SUCCESS;
}


/*****************************************************************************
 * VLCEmbeddedList implementation
 *****************************************************************************/
@implementation VLCEmbeddedList

- (id)init
{
    [super init];
    o_embedded_array = [NSMutableArray array];
    return self;
}

- (id)getEmbeddedVout
{
    unsigned int i;

    for( i = 0; i < [o_embedded_array count]; i++ )
    {
        id o_vout_view = [o_embedded_array objectAtIndex: i];
        if( ![o_vout_view isUsed] )
        {
            [o_vout_view setUsed: YES];
            return o_vout_view;
        }
    }
    return nil;
}

- (void)releaseEmbeddedVout: (id)o_vout_view
{
    if( [o_embedded_array containsObject: o_vout_view] )
    {
        [o_vout_view setUsed: NO];
    }
    else
    {
        msg_Warn( VLCIntf, "cannot find Video Output");
    }
}

- (void)addEmbeddedVout: (id)o_vout_view
{
    if( ![o_embedded_array containsObject: o_vout_view] )
    {
        [o_embedded_array addObject: o_vout_view];
    }
}

- (BOOL)windowContainsEmbedded: (id)o_window
{
/*    if( ![[o_window className] isEqualToString: @"VLCVoutWindow"] )
    {
        NSLog( @"We were not given a VLCVoutWindow" );
    }*/
    return ([self getViewForWindow: o_window] == nil ? NO : YES );
}

- (id)getViewForWindow: (id)o_window
{
    id o_enumerator = [o_embedded_array objectEnumerator];
    id o_current_embedded;

    while( (o_current_embedded = [o_enumerator nextObject]) )
    {
        if( [o_current_embedded getWindow] == o_window )
        {
            return o_current_embedded;
        }
    }
    return nil;
}

@end

/*****************************************************************************
 * VLCVoutView implementation
 *****************************************************************************/
@implementation VLCVoutView

- (id)initWithFrame: (NSRect)frameRect
{
    self = [super initWithFrame: frameRect];
    p_vout = NULL;
    o_view = nil;
    s_frame = &frameRect;

    p_real_vout = NULL;
    o_window = nil;
    return self;
}

- (BOOL)setVout: (vout_thread_t *) vout
        subView: (NSView *) view
          frame: (NSRect *) frame
{
    int i_device;
    NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];
    NSArray *o_screens = [NSScreen screens];

    p_vout  = vout;
    o_view  = view;
    s_frame = frame;

    if( [o_screens count] <= 0 )
    {
        msg_Err( p_vout, "no OSX screens available" );
        return NO;
    }

    p_real_vout = [VLCVoutView getRealVout: p_vout];

    /* Get the pref value when this is the first time, otherwise retrieve the device from the top level video-device var */
    if( var_Type( p_real_vout->p_libvlc, "video-device" ) == 0 )
    {
        i_device = var_GetInteger( p_vout, "macosx-vdev" );
    }
    else
    {
        i_device = var_GetInteger( p_real_vout->p_libvlc, "video-device" );
    }

    /* Setup the menuitem for the multiple displays. */
    if( var_Type( p_real_vout, "video-device" ) == 0 )
    {
        int i = 1;
        vlc_value_t val2, text;
        NSScreen * o_screen;

        var_Create( p_real_vout, "video-device", VLC_VAR_INTEGER |
                                            VLC_VAR_HASCHOICE );
        text.psz_string = _("Fullscreen Video Device");
        var_Change( p_real_vout, "video-device", VLC_VAR_SETTEXT, &text, NULL );

        NSEnumerator * o_enumerator = [o_screens objectEnumerator];

        val2.i_int = 0;
        text.psz_string = _("Default");
        var_Change( p_real_vout, "video-device",
                        VLC_VAR_ADDCHOICE, &val2, &text );
        var_Set( p_real_vout, "video-device", val2 );

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

            text.psz_string = psz_temp;
            val2.i_int = (int)[o_screen displayID];
            var_Change( p_real_vout, "video-device",
                        VLC_VAR_ADDCHOICE, &val2, &text );
            if( (int)[o_screen displayID] == i_device )
            {
                var_Set( p_real_vout, "video-device", val2 );
            }
            i++;
        }

        var_AddCallback( p_real_vout, "video-device", DeviceCallback,
                         NULL );

        val2.b_bool = true;
        var_Set( p_real_vout, "intf-change", val2 );
    }

    /* Add the view. It's automatically resized to fit the window */
    [self addSubview: o_view];
    [self setAutoresizesSubviews: YES];
    [o_pool release];

    return YES;
}

- (void)resizeSubviewsWithOldSize:(NSSize)oldBoundsSize
{
    [super resizeSubviewsWithOldSize: oldBoundsSize];
    [o_view setFrameSize: [self frame].size];
}

- (void)drawRect:(NSRect)rect
{
    /* When there is no subview we draw a black background */
    [self lockFocus];
    [[NSColor blackColor] set];
    NSRectFill(rect);
    [self unlockFocus];
}

- (void)closeVout
{
    [[[[VLCMain sharedInstance] getControls] getFSPanel] fadeOut];

    /* Make sure we don't see a white flash */
    [[self window] disableScreenUpdatesUntilFlush];
    [o_view removeFromSuperview];
    o_view = nil;
    p_vout = NULL;
    s_frame = nil;
    o_window = nil;
    p_real_vout = NULL;
}

- (void)updateTitle
{
    NSString * o_title = nil; 
    NSMutableString * o_mrl = nil;
    input_thread_t * p_input;
    char * psz_title;

    if( !p_vout ) return;

    p_input = vlc_object_find( p_vout, VLC_OBJECT_INPUT, FIND_PARENT );

    if( !p_input ) return;

    input_item_t * p_item = input_GetItem( p_input );

    psz_title = input_item_GetNowPlaying ( p_item );
    if( !psz_title )
        psz_title = input_item_GetName( p_item );

    if( psz_title )
        o_title = [NSString stringWithUTF8String: psz_title];

    char *psz_uri = input_item_GetURI( p_item );
    if( psz_uri )
        o_mrl = [NSMutableString stringWithUTF8String: psz_uri];

    free( psz_title );
    free( psz_uri );

    if( !o_title )
        o_title = o_mrl;

    if( o_mrl != nil )
    {
        /* FIXME once psz_access is exported, we could check if we are
         * reading from a file in a smarter way. */

        NSRange prefix_range = [o_mrl rangeOfString: @"file:"];
        if( prefix_range.location != NSNotFound )
            [o_mrl deleteCharactersInRange: prefix_range];

        if( [o_mrl characterAtIndex:0] == '/' )
        {
            /* it's a local file */
            [o_window setRepresentedFilename: o_mrl];
        }
        else
        {
            /* it's from the network or somewhere else,
             * we clear the previous path */
            [o_window setRepresentedFilename: @""];
        }
        [o_window setTitle: o_title];
    }
    else
    {
        [o_window setTitle: [NSString stringWithUTF8String: VOUT_TITLE]];
    }
    vlc_object_release( p_input );
}


- (void)setOnTop:(BOOL)b_on_top
{
    if( b_on_top )
    {
        [o_window setLevel: NSStatusWindowLevel];
    }
    else
    {
        [o_window setLevel: NSNormalWindowLevel];
    }
}

- (NSSize)voutSizeForFactor: (float)factor
{
    int i_corrected_height, i_corrected_width;
    NSSize newsize;

    if( p_vout->render.i_height * p_vout->render.i_aspect >
                    p_vout->render.i_width * VOUT_ASPECT_FACTOR )
    {
        i_corrected_width = p_vout->render.i_height * p_vout->render.i_aspect /
                                        VOUT_ASPECT_FACTOR;
        newsize.width = (int) ( i_corrected_width * factor );
        newsize.height = (int) ( p_vout->render.i_height * factor );
    }
    else
    {
        i_corrected_height = p_vout->render.i_width * VOUT_ASPECT_FACTOR /
                                        p_vout->render.i_aspect;
        newsize.width = (int) ( p_vout->render.i_width * factor );
        newsize.height = (int) ( i_corrected_height * factor );
    }

    return newsize;
}

- (void)scaleWindowWithFactor: (float)factor animate: (BOOL)animate
{
    if ( !p_vout->b_fullscreen )
    {
        NSSize newsize;
        NSPoint topleftbase;
        NSPoint topleftscreen;
        NSView *mainView;
        NSRect new_frame;
        topleftbase.x = 0;
        topleftbase.y = [o_window frame].size.height;
        topleftscreen = [o_window convertBaseToScreen: topleftbase];

        newsize = [self voutSizeForFactor:factor];

        /* In fullscreen mode we need to use a view that is different from