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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)
* $Id: osd.h,v 1.9 2002/03/14 13:57:15 miguelfreitas Exp $
*/
#ifndef HAVE_OSD_H
#define HAVE_OSD_H
#include "video_overlay.h"
#ifdef __OSD_C__
#include "video_out/alphablend.h"
#endif
typedef struct osd_object_s osd_object_t;
typedef struct osd_renderer_s osd_renderer_t;
typedef struct osd_font_s osd_font_t;
/* WARNING: this should be kept in sync with include/xine.h.tmpl.in */
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, int64_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, int64_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 );
/*
* set on existing text palette
* (-1 to set used specified palette)
*
* color_base specifies the first color index to use for this text
* palette. The OSD palette is then modified starting at this
* color index, up to the size of the text palette.
*
* Use OSD_TEXT1, OSD_TEXT2, ... for some preasssigned color indices.
*/
void (*set_text_palette) (osd_object_t *osd, int palette_number,
int color_base );
/*
* 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
*
* The text is assigned the colors starting at the index specified by
* color_base up to the size of the text palette.
*
* Use OSD_TEXT1, OSD_TEXT2, ... for some preasssigned color indices.
*/
int (*render_text) (osd_object_t *osd, int x1, int y1,
char *text, int color_base);
/*
* 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);
/*
* clear an osd object (empty drawing area)
*/
void (*clear) (osd_object_t *osd );
/* private stuff */
pthread_mutex_t osd_mutex;
video_overlay_instance_t *video_overlay;
video_overlay_event_t event;
osd_object_t *osds; /* instances of osd */
osd_font_t *fonts; /* loaded fonts */
int textpalette; /* default textpalette */
config_values_t *config;
};
/*
* initialize the osd rendering engine
*/
osd_renderer_t *osd_renderer_init( video_overlay_instance_t *video_overlay, config_values_t *config );
/*
* The size of a text palette
*/
#define TEXT_PALETTE_SIZE 11
/*
* Preassigned color indices for rendering text
* (more can be added, not exceeding OVL_PALETTE_SIZE)
*/
#define OSD_TEXT1 (0 * TEXT_PALETTE_SIZE)
#define OSD_TEXT2 (1 * TEXT_PALETTE_SIZE)
#define OSD_TEXT3 (2 * TEXT_PALETTE_SIZE)
#define OSD_TEXT4 (3 * TEXT_PALETTE_SIZE)
#define OSD_TEXT5 (4 * TEXT_PALETTE_SIZE)
#define OSD_TEXT6 (5 * TEXT_PALETTE_SIZE)
#define OSD_TEXT7 (6 * TEXT_PALETTE_SIZE)
#define OSD_TEXT8 (7 * TEXT_PALETTE_SIZE)
#define OSD_TEXT9 (8 * TEXT_PALETTE_SIZE)
#define OSD_TEXT10 (9 * TEXT_PALETTE_SIZE)
/*
* Defined palettes for rendering osd text
* (more can be added later)
*/
#define NUMBER_OF_TEXT_PALETTES 4
#define TEXTPALETTE_WHITE_BLACK_TRANSPARENT 0
#define TEXTPALETTE_WHITE_NONE_TRANSPARENT 1
#define TEXTPALETTE_WHITE_NONE_TRANSLUCID 2
#define TEXTPALETTE_YELLOW_BLACK_TRANSPARENT 3
#ifdef __OSD_C__
/* This text descriptions are used for config screen */
static char *textpalettes_str[NUMBER_OF_TEXT_PALETTES+1] = {
"white-black-transparent",
"white-none-transparent",
"white-none-translucid",
"yellow-black-transparent",
NULL};
/*
Palette entries as used by osd fonts:
0: not used by font, always transparent
1: font background, usually transparent, may be used to implement
translucid boxes where the font will be printed.
2-5: transition between background and border (usually only alpha
value changes).
6: font border. if the font is to be displayed without border this
will probably be adjusted to font background or near.
7-9: transition between border and foreground
10: font color (foreground)
*/
/*
The palettes below were made by hand, ie, i just throw
values that seemed to do the transitions i wanted.
This can surelly be improved a lot. [Miguel]
*/
static clut_t textpalettes_color[NUMBER_OF_TEXT_PALETTES][TEXT_PALETTE_SIZE] = {
/* white, black border, transparent */
{
CLUT_Y_CR_CB_INIT(0x00, 0x00, 0x00), //0
CLUT_Y_CR_CB_INIT(0x00, 0x80, 0x80), //1
CLUT_Y_CR_CB_INIT(0x00, 0x80, 0x80), //2
CLUT_Y_CR_CB_INIT(0x00, 0x80, 0x80), //3
CLUT_Y_CR_CB_INIT(0x00, 0x80, 0x80), //4
CLUT_Y_CR_CB_INIT(0x00, 0x80, 0x80), //5
CLUT_Y_CR_CB_INIT(0x00, 0x80, 0x80), //6
CLUT_Y_CR_CB_INIT(0x40, 0x80, 0x80), //7
CLUT_Y_CR_CB_INIT(0x80, 0x80, 0x80), //8
CLUT_Y_CR_CB_INIT(0xc0, 0x80, 0x80), //9
CLUT_Y_CR_CB_INIT(0xff, 0x80, 0x80), //10
},
/* white, no border, transparent */
{
CLUT_Y_CR_CB_INIT(0x00, 0x00, 0x00), //0
CLUT_Y_CR_CB_INIT(0xff, 0x80, 0x80), //1
CLUT_Y_CR_CB_INIT(0xff, 0x80, 0x80), //2
CLUT_Y_CR_CB_INIT(0xff, 0x80, 0x80), //3
CLUT_Y_CR_CB_INIT(0xff, 0x80, 0x80), //4
CLUT_Y_CR_CB_INIT(0xff, 0x80, 0x80), //5
CLUT_Y_CR_CB_INIT(0xff, 0x80, 0x80), //6
CLUT_Y_CR_CB_INIT(0xff, 0x80, 0x80), //7
CLUT_Y_CR_CB_INIT(0xff, 0x80, 0x80), //8
CLUT_Y_CR_CB_INIT(0xff, 0x80, 0x80), //9
CLUT_Y_CR_CB_INIT(0xff, 0x80, 0x80), //10
},
/* white, no border, translucid */
{
CLUT_Y_CR_CB_INIT(0x00, 0x00, 0x00), //0
CLUT_Y_CR_CB_INIT(0x80, 0x80, 0x80), //1
CLUT_Y_CR_CB_INIT(0x80, 0x80, 0x80), //2
CLUT_Y_CR_CB_INIT(0x80, 0x80, 0x80), //3
CLUT_Y_CR_CB_INIT(0x80, 0x80, 0x80), //4
CLUT_Y_CR_CB_INIT(0x80, 0x80, 0x80), //5
CLUT_Y_CR_CB_INIT(0x80, 0x80, 0x80), //6
CLUT_Y_CR_CB_INIT(0xa0, 0x80, 0x80), //7
CLUT_Y_CR_CB_INIT(0xc0, 0x80, 0x80), //8
CLUT_Y_CR_CB_INIT(0xe0, 0x80, 0x80), //9
CLUT_Y_CR_CB_INIT(0xff, 0x80, 0x80), //10
},
/* yellow, black border, transparent */
{
CLUT_Y_CR_CB_INIT(0x00, 0x00, 0x00), //0
CLUT_Y_CR_CB_INIT(0x00, 0x80, 0x80), //1
CLUT_Y_CR_CB_INIT(0x00, 0x80, 0x80), //2
CLUT_Y_CR_CB_INIT(0x00, 0x80, 0x80), //3
CLUT_Y_CR_CB_INIT(0x00, 0x80, 0x80), //4
CLUT_Y_CR_CB_INIT(0x00, 0x80, 0x80), //5
CLUT_Y_CR_CB_INIT(0x00, 0x80, 0x80), //6
CLUT_Y_CR_CB_INIT(0x40, 0x84, 0x60), //7
CLUT_Y_CR_CB_INIT(0xd0, 0x88, 0x40), //8
CLUT_Y_CR_CB_INIT(0xe0, 0x8a, 0x00), //9
CLUT_Y_CR_CB_INIT(0xff, 0x90, 0x00), //10
},
};
static uint8_t textpalettes_trans[NUMBER_OF_TEXT_PALETTES][TEXT_PALETTE_SIZE] = {
{0, 0, 3, 6, 8, 10, 12, 14, 15, 15, 15 },
{0, 0, 0, 0, 0, 0, 2, 6, 9, 12, 15 },
{0, 8, 9, 10, 11, 12, 13, 14, 15, 15, 15 },
{0, 0, 3, 6, 8, 10, 12, 14, 15, 15, 15 },
};
#endif /* __OSD_C__ */
#endif
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