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/*
* Copyright (C) 2000-2001 the xine project
*
* This file is part of xine, a unix video player.
*
* xine 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.
*
* xine 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 02111-1307, USA
*
* OSD stuff (text and graphic primitives)
*/
#ifndef HAVE_OSD_H
#define HAVE_OSD_H
#include "video_overlay.h"
typedef struct osd_object_s osd_object_t;
typedef struct osd_renderer_s osd_renderer_t;
typedef struct osd_font_s osd_font_t;
struct osd_renderer_s {
/*
* open a new osd object. this will allocated an empty (all zero) drawing
* area where graphic primitives may be used.
* It is ok to specify big width and height values. The render will keep
* track of the smallest changed area to not generate too big overlays.
* A default palette is initialized (i sugest keeping color 0 as transparent
* for the sake of simplicity)
*/
osd_object_t* (*new_object) (osd_renderer_t *this, int width, int height);
/*
* free osd object
*/
void (*free_object) (osd_object_t *osd_to_close);
/*
* send the osd to be displayed at given pts (0=now)
* the object is not changed. there may be subsequent drawing on it.
*/
int (*show) (osd_object_t *osd, uint32_t vpts );
/*
* send event to hide osd at given pts (0=now)
* the object is not changed. there may be subsequent drawing on it.
*/
int (*hide) (osd_object_t *osd, uint32_t vpts );
/*
* Bresenham line implementation on osd object
*/
void (*line) (osd_object_t *osd,
int x1, int y1, int x2, int y2, int color );
/*
* filled retangle
*/
void (*filled_rect) (osd_object_t *osd,
int x1, int y1, int x2, int y2, int color );
/*
* set palette (color and transparency)
*/
void (*set_palette) (osd_object_t *osd, uint32_t *color, uint8_t *trans );
/*
* get palette (color and transparency)
*/
void (*get_palette) (osd_object_t *osd, uint32_t *color,
uint8_t *trans);
/*
* set position were overlay will be blended
*/
void (*set_position) (osd_object_t *osd, int x, int y);
/*
* set the font of osd object
*/
int (*set_font) (osd_object_t *osd, char *fontname, int size);
/*
* render text on x,y position (8 bits version)
* no \n yet
*/
int (*render_text) (osd_object_t *osd, int x1, int y1,
char *text);
/*
* get width and height of how text will be renderized
*/
int (*get_text_size) (osd_object_t *osd, char *text,
int *width, int *height);
/*
* close osd rendering engine
* loaded fonts are unloaded
* osd objects are closed
*/
void (*close) (osd_renderer_t *this);
/* private stuff */
pthread_mutex_t osd_mutex;
video_overlay_instance_t *video_overlay;
video_overlay_event_t event;
osd_object_t *osds;
osd_font_t *fonts;
};
/*
* initialize the osd rendering engine
*/
osd_renderer_t *osd_renderer_init( video_overlay_instance_t *video_overlay );
#endif
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