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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 - 2005 CENA, Patrick Lecoanet --
*
* See the file "Copyright" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
*/
#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)
int To2Power(int a);
ZnImage ZnGetImage(struct _ZnWInfo *wi, Tk_Uid image_name,
void (*inv_proc)(void *cd), void *cd);
ZnImage ZnGetImageByValue(ZnImage image, void (*inv_proc)(void *cd), void *cd);
void ZnFreeImage(ZnImage image, void (*inv_proc)(void *cd), void *cd);
char * ZnNameOfImage(ZnImage image);
void ZnSizeOfImage(ZnImage image, int *width, int *height);
Pixmap ZnImagePixmap(ZnImage image, Tk_Window win);
ZnBool ZnImageIsBitmap(ZnImage image);
TkRegion ZnImageRegion(ZnImage image);
Tk_Image ZnImageTkImage(ZnImage image);
Tk_PhotoHandle ZnImageTkPhoto(ZnImage image);
ZnBool
ZnPointInImage(ZnImage image, int x, int y);
#ifdef GL
GLuint ZnImageTex(ZnImage image, ZnReal *t, ZnReal *s);
typedef struct _ZnTexGlyphVertexInfo {
GLfloat t0x;
GLfloat t0y;
GLshort v0x;
GLshort v0y;
GLfloat t1x;
GLfloat t1y;
GLshort v1x;
GLshort v1y;
GLfloat advance;
int code;
} ZnTexGVI;
typedef void *ZnTexFontInfo;
ZnTexFontInfo ZnGetTexFont(struct _ZnWInfo *wi, Tk_Font font);
void ZnFreeTexFont(ZnTexFontInfo tfi);
ZnTexGVI *ZnTexFontGVI(ZnTexFontInfo tfi, int c);
int ZnGetFontIndex(ZnTexFontInfo tfi, int c);
GLuint ZnTexFontTex(ZnTexFontInfo tfi);
void ZnGetDeferredGLGlyphs(void);
#endif
#endif /* _Image_h */
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