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/*
* Image.h -- Image support routines.
*
* Authors : Patrick LECOANET
* Creation date : Wed Dec 8 11:04:44 1999
*
* $Id$
*/
/*
* Copyright (c) 1999 CENA, Patrick Lecoanet --
*
* This code is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This code 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this code; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef _Image_h
#define _Image_h
#include "Types.h"
struct _ZnWInfo;
typedef void *ZnImage;
#define ZnGetBitmapPixel(bits, stride, x, y)\
(((bits)[(y)*(stride)+((x)>>3)]<<((x)&7))&0x80)
ZnImage
ZnGetImage(struct _ZnWInfo *wi, Tk_Uid image_name);
ZnImage
ZnGetImageByValue(ZnImage image);
ZnImage
ZnGetBitmap(struct _ZnWInfo *wi, Tk_Uid bitmap_name);
void
ZnFreeImage(ZnImage image);
char *
ZnNameOfImage(ZnImage image);
void
ZnSizeOfImage(ZnImage image, int *width, int *height);
Pixmap
ZnImagePixmap(ZnImage image);
ZnBool
ZnImageIsBitmap(ZnImage image);
char *
ZnImageMask(ZnImage image, int *stride);
TkRegion
ZnImageRegion(ZnImage image);
#ifdef GL
GLuint
ZnImageTex(ZnImage image, ZnReal *t, ZnReal *s);
typedef struct _ZnTexGlyphVertexInfo {
GLfloat t0[2];
GLshort v0[2];
GLfloat t1[2];
GLshort v1[2];
GLfloat t2[2];
GLshort v2[2];
GLfloat t3[2];
GLshort v3[2];
GLfloat advance;
} ZnTexGVI;
typedef void *ZnTexFontInfo;
ZnTexFontInfo
ZnGetTexFont(struct _ZnWInfo *wi, Tk_Font font);
void
ZnFreeTexFont(ZnTexFontInfo tfi);
ZnBool
ZnCharInTexFont(ZnTexFontInfo tfi, unsigned int c);
ZnTexGVI *
ZnTexFontGVI(ZnTexFontInfo tfi, unsigned int c);
GLuint
ZnTexFontTex(ZnTexFontInfo tfi);
#endif
#endif /* _Image_h */
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