osd.c

uclinux 下的vlc播放器源代码

                p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_pitch,
                p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_lines,
                p_button->p_current_state->p_pic );
        osd_SetMenuUpdate( p_osd, VLC_TRUE );
        osd_SetMenuVisible( p_osd, VLC_TRUE );
        osd_SetKeyPressed( VLC_OBJECT(p_osd->p_vlc), config_GetInt( p_osd, p_button->psz_action ) );
#if defined(OSD_MENU_DEBUG)
        msg_Dbg( p_osd, "select (%d, %s)", config_GetInt( p_osd, p_button->psz_action ), p_button->psz_action );
#endif
    }
    vlc_object_release( (vlc_object_t*) p_osd );
    vlc_mutex_unlock( lockval.p_address );
}

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

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

    if( osd_isVisible( p_osd ) == VLC_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->p_states, 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->p_states, 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->p_pic->p[Y_PLANE].i_visible_pitch,
                p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_lines,
                p_osd->p_state->p_visible->p_current_state->p_pic );
        osd_SetMenuUpdate( p_osd, VLC_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;

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

    if( osd_isVisible( p_osd ) == VLC_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->p_states, 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->p_states, 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->p_pic->p[Y_PLANE].i_visible_pitch,
                p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_lines,
                p_osd->p_state->p_visible->p_current_state->p_pic );
        osd_SetMenuUpdate( p_osd, VLC_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

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

    if( osd_isVisible( p_osd ) == VLC_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->p_states, 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->p_states, 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->p_pic->p[Y_PLANE].i_visible_pitch,
                p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_lines,
                p_osd->p_state->p_visible->p_current_state->p_pic );
        osd_SetMenuUpdate( p_osd, VLC_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_vlc), 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

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

    if( osd_isVisible( p_osd ) == VLC_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->p_states, 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->p_states, 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->p_pic->p[Y_PLANE].i_visible_pitch,
                p_osd->p_state->p_visible->p_current_state->p_pic->p[Y_PLANE].i_visible_lines,
                p_osd->p_state->p_visible->p_current_state->p_pic );
        osd_SetMenuUpdate( p_osd, VLC_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_vlc), 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;

    i_volume_step = config_GetInt( p_this->p_vlc, "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;

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

    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->p_pic->p[Y_PLANE].i_visible_pitch,
                p_button->p_current_state->p_pic->p[Y_PLANE].i_visible_lines,
                p_button->p_current_state->p_pic );
        osd_SetMenuUpdate( p_osd, VLC_TRUE );
        osd_SetMenuVisible( p_osd, VLC_TRUE );
    }
    vlc_object_release( (vlc_object_t*) p_osd );
    vlc_mutex_unlock( lockval.p_address );
}