osdmenu.c

VLC Player Source Code

#if 0
/*****************************************************************************
 * create_text_region : compose a text region SPU
 *****************************************************************************/
static subpicture_region_t *create_text_region( filter_t *p_filter, subpicture_t *p_spu,
    int i_width, int i_height, const char *psz_text )
{
    subpicture_region_t *p_region;
    video_format_t       fmt;

    /* Create new SPU region */
    memset( &fmt, 0, sizeof(video_format_t) );
    fmt.i_chroma = VLC_FOURCC( 'T','E','X','T' );
    fmt.i_aspect = VOUT_ASPECT_FACTOR;
    fmt.i_sar_num = fmt.i_sar_den = 1;
    fmt.i_width = fmt.i_visible_width = i_width;
    fmt.i_height = fmt.i_visible_height = i_height;
    fmt.i_x_offset = fmt.i_y_offset = 0;
    p_region = p_spu->pf_create_region( VLC_OBJECT(p_filter), &fmt );
    if( !p_region )
    {
        msg_Err( p_filter, "cannot allocate another SPU region" );
        return NULL;
    }
    p_region->psz_text = strdup( psz_text );
    p_region->i_x = 0;
    p_region->i_y = 40;
#if 0
    msg_Dbg( p_filter, "SPU text region position (%d,%d) (%d,%d) [%s]",
        p_region->i_x, p_region->i_y,
        p_region->fmt.i_width, p_region->fmt.i_height, p_region->psz_text );
#endif
    return p_region;
}
#endif

/*****************************************************************************
 * create_picture_region : compose a picture region SPU
 *****************************************************************************/
static subpicture_region_t *create_picture_region( filter_t *p_filter, subpicture_t *p_spu,
    int i_width, int i_height, picture_t *p_pic )
{
    subpicture_region_t *p_region = NULL;
    video_format_t       fmt;

    if( !p_spu ) return NULL;

    /* Create new SPU region */
    memset( &fmt, 0, sizeof(video_format_t) );
    fmt.i_chroma = (p_pic == NULL) ? VLC_FOURCC('Y','U','V','P') : VLC_FOURCC('Y','U','V','A');
    fmt.i_aspect = VOUT_ASPECT_FACTOR;
    fmt.i_sar_num = fmt.i_sar_den = 1;
    fmt.i_width = fmt.i_visible_width = i_width;
    fmt.i_height = fmt.i_visible_height = i_height;
    fmt.i_x_offset = fmt.i_y_offset = 0;

    p_region = p_spu->pf_create_region( VLC_OBJECT(p_filter), &fmt );
    if( !p_region )
    {
        msg_Err( p_filter, "cannot allocate SPU region" );
        p_filter->pf_sub_buffer_del( p_filter, p_spu );
        return NULL;
    }
    if( !p_pic && ( fmt.i_chroma == VLC_FOURCC('Y','U','V','P') ) )
    {
        p_region->fmt.p_palette->i_entries = 0;
        p_region->fmt.i_width = p_region->fmt.i_visible_width = 0;
        p_region->fmt.i_height = p_region->fmt.i_visible_height = 0;
    }
    if( p_pic )
        vout_CopyPicture( p_filter, &p_region->picture, p_pic );

    p_region->i_x = 0;
    p_region->i_y = 0;
    p_region->i_align = p_filter->p_sys->i_position;
    p_region->i_alpha = p_filter->p_sys->i_alpha;
#if 0
    msg_Dbg( p_filter, "SPU picture region position (%d,%d) (%d,%d) [%p]",
        p_region->i_x, p_region->i_y,
        p_region->fmt.i_width, p_region->fmt.i_height, p_pic );
#endif
    return p_region;
}

/****************************************************************************
 * Filter: the whole thing
 ****************************************************************************
 * This function outputs subpictures at regular time intervals.
 ****************************************************************************/
static subpicture_t *Filter( filter_t *p_filter, mtime_t i_date )
{
    filter_sys_t *p_sys = p_filter->p_sys;
    subpicture_t *p_spu = NULL;
    subpicture_region_t *p_region = NULL;

    if( !p_sys->b_update || (p_sys->i_update <= 0) )
            return NULL;

    /* Am I too early?
    */
    if( ( ( p_sys->i_last_date + p_sys->i_update ) > i_date ) &&
        ( p_sys->i_end_date > 0 ) )
        return NULL; /* we are too early, so wait */

    /* Allocate the subpicture internal data. */
    p_spu = filter_NewSubpicture( p_filter );
    if( !p_spu )
        return NULL;

    p_spu->b_ephemer = true;
    p_spu->b_fade = true;
    if( p_filter->p_sys->p_menu->i_style == OSD_MENU_STYLE_CONCAT )
        p_spu->b_absolute = true;
    else
        p_spu->b_absolute = p_sys->b_absolute;
    p_spu->i_flags = p_sys->i_position;

    /* Determine the duration of the subpicture */
    if( p_sys->i_end_date > 0 )
    {
        /* Display the subpicture again. */
        p_spu->i_stop = p_sys->i_end_date - i_date;
        if( ( i_date + p_sys->i_update ) >= p_sys->i_end_date )
            p_sys->b_update = false;
    }
    else
    {
        /* There is a new OSD picture to display */
        p_spu->i_stop = i_date + p_sys->i_timeout;
        p_sys->i_end_date = p_spu->i_stop;
    }

    p_sys->i_last_date = i_date;
    p_spu->i_start = p_sys->i_last_date = i_date;

    /* Send an empty subpicture to clear the display
     * when OSD menu should be hidden and menu picture is not allocated.
     */
    if( !p_filter->p_sys->p_menu->p_state->p_pic ||
        ( p_filter->p_sys->b_visible == false ) )
    {
        /* Create new spu regions and allocate an empty picture in it. */
        p_region = create_picture_region( p_filter, p_spu,
            p_filter->p_sys->p_menu->p_state->i_width,
            p_filter->p_sys->p_menu->p_state->i_height,
            NULL );

        /* proper positioning of OSD menu image */
        p_spu->i_x = p_filter->p_sys->p_menu->p_state->i_x;
        p_spu->i_y = p_filter->p_sys->p_menu->p_state->i_y;
        p_spu->p_region = p_region;
        p_spu->i_alpha = 0xFF; /* Picture is completely non transparent. */
        return p_spu;
    }

    if( p_sys->p_vout && p_sys->b_clicked )
    {
        p_sys->b_clicked = false;
        osd_MenuActivate( p_filter );
    }
    /* Create new spu regions
    */
    p_region = create_picture_region( p_filter, p_spu,
        p_filter->p_sys->p_menu->p_state->i_width,
        p_filter->p_sys->p_menu->p_state->i_height,
        p_filter->p_sys->p_menu->p_state->p_pic );

    if( !p_region )
    {
        p_filter->pf_sub_buffer_del( p_filter, p_spu );
        return NULL;
    }

    p_spu->i_width = p_region->fmt.i_visible_width;
    p_spu->i_height = p_region->fmt.i_visible_height;
    p_spu->i_alpha = p_filter->p_sys->i_alpha;

    /* proper positioning of OSD menu image */
    if( p_filter->p_sys->p_menu->i_style == OSD_MENU_STYLE_CONCAT )
    {
        p_spu->i_x = p_filter->p_sys->p_menu->p_button->i_x;
        p_spu->i_y = p_filter->p_sys->p_menu->p_button->i_y;
    }
    else
    {
        p_spu->i_x = p_filter->p_sys->p_menu->p_state->i_x;
        p_spu->i_y = p_filter->p_sys->p_menu->p_state->i_y;
    }

    if( p_filter->p_sys->p_menu->i_style == OSD_MENU_STYLE_CONCAT )
    {
        subpicture_region_t *p_region_list = NULL;
        subpicture_region_t *p_region_tail = NULL;
        osd_menu_t *p_osd = p_filter->p_sys->p_menu;
        osd_button_t *p_button = p_osd->p_button;

        /* Construct the entire OSD from individual images */
        while( p_button != NULL )
        {
            osd_button_t *p_tmp = NULL;
            subpicture_region_t *p_new = NULL;

            p_new = create_picture_region( p_filter, p_spu,
                    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 );
            if( !p_new )
            {
                /* Cleanup when bailing out */
                subpicture_region_t *p_tmp = NULL;
                while( p_region_list )
                {
                    p_tmp = p_region_list->p_next;
                    p_spu->pf_destroy_region( VLC_OBJECT(p_filter), p_region_list );
                };
                p_spu->pf_destroy_region( VLC_OBJECT(p_filter), p_region );
                p_filter->pf_sub_buffer_del( p_filter, p_spu );
                return NULL;
            }

            p_spu->i_width += p_new->fmt.i_visible_width;
            p_spu->i_height += p_new->fmt.i_visible_height;

            if( !p_region_list )
            {
                p_region_list = p_new;
                p_region_tail = p_new;
            }
            else
            {
                p_new->i_x = p_region_tail->fmt.i_visible_width;
                p_new->i_y = p_button->i_y;
                p_region_tail->p_next = p_new;
                p_region_tail = p_new;
            }
            p_tmp = p_button->p_next;
            p_button = p_tmp;
        };
        p_region->p_next = p_region_list;
    }
#if 0
    p_region->p_next = create_text_region( p_filter, p_spu,
        p_filter->p_sys->p_menu->p_state->i_width, p_filter->p_sys->p_menu->p_state->i_height,
        p_filter->p_sys->p_menu->p_state->p_visible->psz_action );
#endif
    p_spu->p_region = p_region;
    return p_spu;
}

static int OSDMenuCallback( vlc_object_t *p_this, char const *psz_var,
                            vlc_value_t oldval, vlc_value_t newval,
                            void *p_data )
{
    VLC_UNUSED(p_this); VLC_UNUSED(oldval);
    filter_sys_t *p_sys = (filter_sys_t *) p_data;

    if( !p_sys )
        return VLC_SUCCESS;

    if( !strncmp( psz_var, OSD_CFG"position", 16) )
    {
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
        unsigned int i;
        for( i=0; i < ARRAY_SIZE(pi_pos_values); i++ )
        {
            if( newval.i_int == pi_pos_values[i] )
            {
                p_sys->i_position = newval.i_int % 11;
                break;
            }
        }
#undef ARRAY_SIZE
    }
    else if( !strncmp( psz_var, OSD_CFG"x", 9) ||
             !strncmp( psz_var, OSD_CFG"y", 9))
    {
        p_sys->b_absolute = true;
        if( (p_sys->i_x < 0) || (p_sys->i_y < 0) )
        {
            p_sys->b_absolute = false;
            p_sys->p_menu->i_x = 0;
            p_sys->p_menu->i_y = 0;
        }
        else if( (p_sys->i_x >= 0) || (p_sys->i_y >= 0) )
        {
            p_sys->p_menu->i_x = p_sys->i_x;
            p_sys->p_menu->i_y = p_sys->i_y;
        }
    }
    else if( !strncmp( psz_var, OSD_CFG"update", 14) )
        p_sys->i_update =  (mtime_t)(newval.i_int * 1000);
    else if( !strncmp( psz_var, OSD_CFG"timeout", 15) )
        p_sys->i_update = newval.i_int % 1000;
    else if( !strncmp( psz_var, OSD_CFG"alpha", 13) )
        p_sys->i_alpha = newval.i_int % 256;

    p_sys->b_update = p_sys->b_visible ? true : false;
    return VLC_SUCCESS;
}

/*****************************************************************************
 * MouseEvent: callback for mouse events
 *****************************************************************************/
static int MouseEvent( vlc_object_t *p_this, char const *psz_var,
                       vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
    VLC_UNUSED(oldval); VLC_UNUSED(newval);
    filter_sys_t *p_sys = (filter_sys_t *)p_data;
    vout_thread_t *p_vout = (vout_thread_t*)p_sys->p_vout;
    int i_x, i_y;
    int i_v;

#define MOUSE_DOWN    1
#define MOUSE_CLICKED 2
#define MOUSE_MOVE_X  4
#define MOUSE_MOVE_Y  8
#define MOUSE_MOVE    12
    uint8_t mouse= 0;

    int v_h = p_vout->output.i_height;
    int v_w = p_vout->output.i_width;

    if( psz_var[6] == 'x' ) mouse |= MOUSE_MOVE_X;
    if( psz_var[6] == 'y' ) mouse |= MOUSE_MOVE_Y;
    if( psz_var[6] == 'c' ) mouse |= MOUSE_CLICKED;

    i_v = var_GetInteger( p_sys->p_vout, "mouse-button-down" );
    if( i_v & 0x1 ) mouse |= MOUSE_DOWN;
    i_y = var_GetInteger( p_sys->p_vout, "mouse-y" );
    i_x = var_GetInteger( p_sys->p_vout, "mouse-x" );

    if( i_y < 0 || i_x < 0 || i_y >= v_h || i_x >= v_w )
        return VLC_SUCCESS;

    if( mouse & MOUSE_CLICKED )
    {
        int i_scale_width, i_scale_height;
        osd_button_t *p_button = NULL;

        i_scale_width = p_vout->fmt_out.i_visible_width * 1000 /
            p_vout->fmt_in.i_visible_width;
        i_scale_height = p_vout->fmt_out.i_visible_height * 1000 /
            p_vout->fmt_in.i_visible_height;

        p_button = osd_ButtonFind( p_this, i_x, i_y, v_h, v_w,
                                   i_scale_width, i_scale_height );
        if( p_button )
        {
            osd_ButtonSelect( p_this, p_button );
            p_sys->b_update = p_sys->b_visible ? true : false;
            p_sys->b_clicked = true;
            msg_Dbg( p_this, "mouse clicked %s (%d,%d)\n", p_button->psz_name, i_x, i_y );
        }
    }
    return VLC_SUCCESS;
}