osd.c

VLC Player Source Code

    vlc_mutex_lock( lockval.p_address );

    p_button = p_osd->p_state->p_visible;
    if( p_button )
    {
        if( !p_button->b_range )
            p_button->p_current_state = osd_StateChange( p_button, OSD_BUTTON_UNSELECT );
        if( p_button->p_next )
            p_osd->p_state->p_visible = p_button->p_next;
        else
            p_osd->p_state->p_visible = p_osd->p_button;

        if( !p_osd->p_state->p_visible->b_range )
            p_osd->p_state->p_visible->p_current_state =
                osd_StateChange( p_osd->p_state->p_visible, OSD_BUTTON_SELECT );

        osd_UpdateState( p_osd->p_state,
                p_osd->p_state->p_visible->i_x, p_osd->p_state->p_visible->i_y,
                p_osd->p_state->p_visible->p_current_state->i_width,
                p_osd->p_state->p_visible->p_current_state->i_height,
                p_osd->p_state->p_visible->p_current_state->p_pic );
        osd_SetMenuUpdate( p_osd, true );
    }
#if defined(OSD_MENU_DEBUG)
    msg_Dbg( p_osd, "direction right [button %s]", p_osd->p_state->p_visible->psz_action );
#endif

    vlc_object_release( (vlc_object_t*) p_osd );
    vlc_mutex_unlock( lockval.p_address );
}

void __osd_MenuPrev( vlc_object_t *p_this )
{
    osd_menu_t *p_osd = NULL;
    osd_button_t *p_button = NULL;
    vlc_value_t lockval;

    p_osd = vlc_object_find( p_this, VLC_OBJECT_OSDMENU, FIND_ANYWHERE );
    if( p_osd == NULL )
    {
        msg_Err( p_this, "osd_MenuPrev failed" );
        return;
    }

    if( osd_isVisible( p_osd ) == false )
    {
        vlc_object_release( (vlc_object_t*) p_osd );
        return;
    }

    var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
    vlc_mutex_lock( lockval.p_address );

    p_button = p_osd->p_state->p_visible;
    if( p_button )
    {
        if( !p_button->b_range )
            p_button->p_current_state = osd_StateChange( p_button, OSD_BUTTON_UNSELECT );
        if( p_button->p_prev )
            p_osd->p_state->p_visible = p_button->p_prev;
        else
            p_osd->p_state->p_visible = p_osd->p_last_button;

        if( !p_osd->p_state->p_visible->b_range )
            p_osd->p_state->p_visible->p_current_state =
                osd_StateChange( p_osd->p_state->p_visible, OSD_BUTTON_SELECT );

        osd_UpdateState( p_osd->p_state,
                p_osd->p_state->p_visible->i_x, p_osd->p_state->p_visible->i_y,
                p_osd->p_state->p_visible->p_current_state->i_width,
                p_osd->p_state->p_visible->p_current_state->i_height,
                p_osd->p_state->p_visible->p_current_state->p_pic );
        osd_SetMenuUpdate( p_osd, true );
    }
#if defined(OSD_MENU_DEBUG)
    msg_Dbg( p_osd, "direction left [button %s]", p_osd->p_state->p_visible->psz_action );
#endif

    vlc_object_release( (vlc_object_t*) p_osd );
    vlc_mutex_unlock( lockval.p_address );
}

void __osd_MenuUp( vlc_object_t *p_this )
{
    osd_menu_t *p_osd = NULL;
    osd_button_t *p_button = NULL;
    vlc_value_t lockval;
#if defined(OSD_MENU_DEBUG)
    vlc_value_t val;
#endif
    p_osd = vlc_object_find( p_this, VLC_OBJECT_OSDMENU, FIND_ANYWHERE );
    if( p_osd == NULL )
    {
        msg_Err( p_this, "osd_MenuDown failed" );
        return;
    }

    if( osd_isVisible( p_osd ) == false )
    {
        vlc_object_release( (vlc_object_t*) p_osd );
        return;
    }

    var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
    vlc_mutex_lock( lockval.p_address );

    p_button = p_osd->p_state->p_visible;
    if( p_button )
    {
        if( !p_button->b_range )
        {
            p_button->p_current_state = osd_StateChange( p_button, OSD_BUTTON_SELECT );
            if( p_button->p_up )
                p_osd->p_state->p_visible = p_button->p_up;
        }

        if( p_button->b_range && p_osd->p_state->p_visible->b_range )
        {
            osd_state_t *p_temp = p_osd->p_state->p_visible->p_current_state;
            if( p_temp && p_temp->p_next )
                p_osd->p_state->p_visible->p_current_state = p_temp->p_next;
        }
        else if( !p_osd->p_state->p_visible->b_range )
        {
            p_osd->p_state->p_visible->p_current_state =
                osd_StateChange( p_osd->p_state->p_visible, OSD_BUTTON_SELECT );
        }

        osd_UpdateState( p_osd->p_state,
                p_osd->p_state->p_visible->i_x, p_osd->p_state->p_visible->i_y,
                p_osd->p_state->p_visible->p_current_state->i_width,
                p_osd->p_state->p_visible->p_current_state->i_height,
                p_osd->p_state->p_visible->p_current_state->p_pic );
        osd_SetMenuUpdate( p_osd, true );
        /* If this is a range style action with associated images of only one state,
            * then perform "menu select" on every menu navigation
            */
        if( p_button->b_range )
        {
            osd_SetKeyPressed( VLC_OBJECT(p_osd->p_libvlc), config_GetInt(p_osd, p_button->psz_action) );
#if defined(OSD_MENU_DEBUG)
            msg_Dbg( p_osd, "select (%d, %s)", val.i_int, p_button->psz_action );
#endif
        }
    }
#if defined(OSD_MENU_DEBUG)
    msg_Dbg( p_osd, "direction up [button %s]", p_osd->p_state->p_visible->psz_action );
#endif

    vlc_object_release( (vlc_object_t*) p_osd );
    vlc_mutex_unlock( lockval.p_address );
}

void __osd_MenuDown( vlc_object_t *p_this )
{
    osd_menu_t *p_osd = NULL;
    osd_button_t *p_button = NULL;
    vlc_value_t lockval;
#if defined(OSD_MENU_DEBUG)
    vlc_value_t val;
#endif

    p_osd = vlc_object_find( p_this, VLC_OBJECT_OSDMENU, FIND_ANYWHERE );
    if( p_osd == NULL )
    {
        msg_Err( p_this, "osd_MenuDown failed" );
        return;
    }

    if( osd_isVisible( p_osd ) == false )
    {
        vlc_object_release( (vlc_object_t*) p_osd );
        return;
    }

    var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
    vlc_mutex_lock( lockval.p_address );

    p_button = p_osd->p_state->p_visible;
    if( p_button )
    {
        if( !p_button->b_range )
        {
            p_button->p_current_state = osd_StateChange( p_button, OSD_BUTTON_SELECT );
            if( p_button->p_down )
                p_osd->p_state->p_visible = p_button->p_down;
        }

        if( p_button->b_range && p_osd->p_state->p_visible->b_range )
        {
            osd_state_t *p_temp = p_osd->p_state->p_visible->p_current_state;
            if( p_temp && p_temp->p_prev )
                p_osd->p_state->p_visible->p_current_state = p_temp->p_prev;
        }
        else if( !p_osd->p_state->p_visible->b_range )
        {
            p_osd->p_state->p_visible->p_current_state =
                osd_StateChange( p_osd->p_state->p_visible, OSD_BUTTON_SELECT );
        }

        osd_UpdateState( p_osd->p_state,
                p_osd->p_state->p_visible->i_x, p_osd->p_state->p_visible->i_y,
                p_osd->p_state->p_visible->p_current_state->i_width,
                p_osd->p_state->p_visible->p_current_state->i_height,
                p_osd->p_state->p_visible->p_current_state->p_pic );
        osd_SetMenuUpdate( p_osd, true );
        /* If this is a range style action with associated images of only one state,
         * then perform "menu select" on every menu navigation
         */
        if( p_button->b_range )
        {
            osd_SetKeyPressed( VLC_OBJECT(p_osd->p_libvlc), config_GetInt(p_osd, p_button->psz_action_down) );
#if defined(OSD_MENU_DEBUG)
            msg_Dbg( p_osd, "select (%d, %s)", val.i_int, p_button->psz_action_down );
#endif
        }
    }
#if defined(OSD_MENU_DEBUG)
    msg_Dbg( p_osd, "direction down [button %s]", p_osd->p_state->p_visible->psz_action );
#endif

    vlc_object_release( (vlc_object_t*) p_osd );
    vlc_mutex_unlock( lockval.p_address );
}

static int osd_VolumeStep( vlc_object_t *p_this, int i_volume, int i_steps )
{
    int i_volume_step = 0;
    (void)i_steps;

    i_volume_step = config_GetInt( p_this->p_libvlc, "volume-step" );
    return (i_volume/i_volume_step);
}

/**
 * Display current audio volume bitmap
 *
 * The OSD Menu audio volume bar is updated to reflect the new audio volume. Call this function
 * when the audio volume is updated outside the OSD menu command "menu up", "menu down" or "menu select".
 */
void __osd_Volume( vlc_object_t *p_this )
{
    osd_menu_t *p_osd = NULL;
    osd_button_t *p_button = NULL;
    vlc_value_t lockval;
    int i_volume = 0;
    int i_steps = 0;

    p_osd = vlc_object_find( p_this, VLC_OBJECT_OSDMENU, FIND_ANYWHERE );
    if( p_osd == NULL )
    {
        msg_Err( p_this, "OSD menu volume update failed" );
        return;
    }

    if( p_osd->p_state && p_osd->p_state->p_volume )
    {
        var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
        vlc_mutex_lock( lockval.p_address );

        p_button = p_osd->p_state->p_volume;
        if( p_osd->p_state->p_volume )
            p_osd->p_state->p_visible = p_osd->p_state->p_volume;
        if( p_button && p_button->b_range )
        {
            /* Update the volume state images to match the current volume */
            i_volume = config_GetInt( p_this, "volume" );
            i_steps = osd_VolumeStep( p_this, i_volume, p_button->i_ranges );
            p_button->p_current_state = osd_VolumeStateChange( p_button->p_states, i_steps );

            osd_UpdateState( p_osd->p_state,
                    p_button->i_x, p_button->i_y,
                    p_button->p_current_state->i_width,
                    p_button->p_current_state->i_height,
                    p_button->p_current_state->p_pic );
            osd_SetMenuUpdate( p_osd, true );
            osd_SetMenuVisible( p_osd, true );
        }
        vlc_mutex_unlock( lockval.p_address );
    }
    vlc_object_release( p_osd );
}

osd_button_t *__osd_ButtonFind( vlc_object_t *p_this, int i_x, int i_y,
    int i_window_height, int i_window_width,
    int i_scale_width, int i_scale_height )
{
    osd_menu_t *p_osd;
    osd_button_t *p_button;
    vlc_value_t lockval;

    p_osd = vlc_object_find( p_this, VLC_OBJECT_OSDMENU, FIND_ANYWHERE );
    if( p_osd == NULL )
    {
        msg_Err( p_this, "OSD menu button find failed" );
        return NULL;
    }

    if( osd_isVisible( p_osd ) == false )
    {
        vlc_object_release( p_osd );
        return NULL;
    }

    var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
    vlc_mutex_lock( lockval.p_address );

    p_button = p_osd->p_button;
    for( ; p_button != NULL; p_button = p_button->p_next )
    {
        int i_source_video_width  = ( i_window_width  * 1000 ) / i_scale_width;
        int i_source_video_height = ( i_window_height * 1000 ) / i_scale_height;
        int i_y_offset = p_button->i_y;
        int i_x_offset = p_button->i_x;
        int i_width = p_button->i_width;
        int i_height = p_button->i_height;

        if( p_osd->i_position > 0 )
        {
            int i_inv_scale_y = i_source_video_height;
            int i_inv_scale_x = i_source_video_width;
            int pi_x = 0;

            if( p_osd->i_position & SUBPICTURE_ALIGN_BOTTOM )
            {
                i_y_offset = i_window_height - p_button->i_height -
                    (p_osd->i_y + p_button->i_y) * i_inv_scale_y / 1000;
            }
            else if ( !(p_osd->i_position & SUBPICTURE_ALIGN_TOP) )
            {
                i_y_offset = i_window_height / 2 - p_button->i_height / 2;
            }

            if( p_osd->i_position & SUBPICTURE_ALIGN_RIGHT )
            {
                i_x_offset = i_window_width - p_button->i_width -
                    (pi_x + p_button->i_x)
                    * i_inv_scale_x / 1000;
            }
            else if ( !(p_osd->i_position & SUBPICTURE_ALIGN_LEFT) )
            {
                i_x_offset = i_window_width / 2 - p_button->i_width / 2;
            }

            i_width = i_window_width - p_button->i_width - i_inv_scale_x / 1000;
            i_height = i_window_height - p_button->i_height - i_inv_scale_y / 1000;
        }

        // TODO: write for Up / Down case too.
        // TODO: handle absolute positioning case
        if( ( i_x >= i_x_offset ) && ( i_x <= i_x_offset + i_width ) &&
            ( i_y >= i_y_offset ) && ( i_y <= i_y_offset + i_height ) )
        {
            vlc_object_release( p_osd );
            vlc_mutex_unlock( lockval.p_address );
            return p_button;
        }
    }

    vlc_object_release( p_osd );
    vlc_mutex_unlock( lockval.p_address );
    return NULL;
}

/**
 * Select the button provided as the new active button
 */
void __osd_ButtonSelect( vlc_object_t *p_this, osd_button_t *p_button )
{
    osd_menu_t *p_osd;
    osd_button_t *p_old;
    vlc_value_t lockval;

    p_osd = vlc_object_find( p_this, VLC_OBJECT_OSDMENU, FIND_ANYWHERE );
    if( p_osd == NULL )
    {
        msg_Err( p_this, "OSD menu button select failed" );
        return;
    }

    if( osd_isVisible( p_osd ) == false )
    {
        vlc_object_release( (vlc_object_t*) p_osd );
        return;
    }

    var_Get( p_this->p_libvlc, "osd_mutex", &lockval );
    vlc_mutex_lock( lockval.p_address );

    p_old = p_osd->p_state->p_visible;
    if( p_old )
    {
        if( !p_old->b_range )
            p_old->p_current_state = osd_StateChange( p_old, OSD_BUTTON_UNSELECT );
        p_osd->p_state->p_visible = p_button;

        if( !p_osd->p_state->p_visible->b_range )
            p_osd->p_state->p_visible->p_current_state =
                osd_StateChange( p_osd->p_state->p_visible, OSD_BUTTON_SELECT );

        osd_UpdateState( p_osd->p_state,
                p_osd->p_state->p_visible->i_x, p_osd->p_state->p_visible->i_y,
                p_osd->p_state->p_visible->p_current_state->i_width,
                p_osd->p_state->p_visible->p_current_state->i_height,
                p_osd->p_state->p_visible->p_current_state->p_pic );
        osd_SetMenuUpdate( p_osd, true );
    }
#if defined(OSD_MENU_DEBUG)
    msg_Dbg( p_osd, "button selected is [button %s]", p_osd->p_state->p_visible->psz_action );
#endif

    vlc_object_release( p_osd );
    vlc_mutex_unlock( lockval.p_address );
}