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/* Copyright 1990,91 GROUPE BULL -- See licence conditions in file COPYRIGHT */
/*****************************************************************************\
* xpmP.h:                                                                     *
*                                                                             *
*  XPM library                                                                *
*  Private Include file                                                       *
*                                                                             *
*  Developed by Arnaud Le Hors                                                *
\*****************************************************************************/


#include "../viola/defhell.h" /*pyw*/

#ifndef XPMP_h
#define XPMP_h

#ifdef Debug
/* memory leak control tool */
#include <mnemosyne.h>
#endif

#ifdef VMS
#include "decw$include:Xlib.h"
#include "decw$include:Intrinsic.h"
#include "sys$library:stdio.h"
#else
/* there is a better way, right? */
#ifdef hpux
#include <Xlib.h>
#include <Intrinsic.h>
#else
#include <X11/Xlib.h>
#include <X11/Intrinsic.h>
#endif
#include <stdio.h>
#endif

#include "xpm.h"

/* we keep the same codes as for Bitmap management */
#ifndef _XUTIL_H_
#ifdef VMS
#include "decw$include:Xutil.h"
#else
#include <X11/Xutil.h>
#endif
#endif

#ifdef SYSV
#define bcopy(source, dest, count) memcpy(dest, source, count)
#endif

typedef struct {
    unsigned int type;
    union {
        FILE *file;
        char **data;
    }     stream;
    char *cptr;
    unsigned int line;
    int CommentLength;
    char Comment[BUFSIZ];
    char *Bcmt, *Ecmt, Bos, Eos;
    unsigned int InsideString;          /* used during parsing: 0 or 1
                                         * whether we are inside or not */

}      xpmData;

#define XPMARRAY 0
#define XPMFILE  1
#define XPMPIPE  2

typedef unsigned char byte;

#define EOL '\n'
#define TAB '\t'
#define SPC ' '

typedef struct {
    char *type;                         /* key word */
    char *Bcmt;                         /* string begining comments */
    char *Ecmt;                         /* string ending comments */
    char Bos;                           /* character begining strings */
    char Eos;                           /* character ending strings */
    char *Strs;                         /* strings separator */
    char *Dec;                          /* data declaration string */
    char *Boa;                          /* string begining assignment */
    char *Eoa;                          /* string ending assignment */
}      xpmDataType;

extern xpmDataType xpmDataTypes[];

/*
 * rgb values and ascii names (from rgb text file) rgb values,
 * range of 0 -> 65535 color mnemonic of rgb value
 */

typedef struct {
    int r, g, b;
    char *name;
}      xpmRgbName;

/* Maximum number of rgb mnemonics allowed in rgb text file. */
#define MAX_RGBNAMES 1024

extern char *xpmColorKeys[];

#define TRANSPARENT_COLOR "None"        /* this must be a string! */

/* number of xpmColorKeys */
#define NKEYS 5

/*
 * key numbers for visual type, they must fit along with the number key of
 * each corresponding element in xpmColorKeys[] defined in xpm.h
 */

#define MONO    2
#define GRAY4   3
#define GRAY    4
#define COLOR   5

/* structure containing data related to an Xpm pixmap */
typedef struct {
    char *name;
    unsigned int width;
    unsigned int height;
    unsigned int cpp;
    unsigned int ncolors;
    char ***colorTable;
    unsigned int *pixelindex;
    XColor *xcolors;
    char **colorStrings;
    unsigned int mask_pixel;            /* mask pixel's colorTable index */
}      xpmInternAttrib;

#define UNDEF_PIXEL 0x80000000

/* XPM private routines */

FUNC(xpmCreateImage, int, (Display * display,
                           xpmInternAttrib * attrib,
                           XImage ** image_return,
                           XImage ** shapeimage_return,
                           XpmAttributes * attributes));

FUNC(xpmParseData, int, (xpmData * data,
                         xpmInternAttrib * attrib_return,
                         XpmAttributes * attributes));

FUNC(xpmScanImage, int, (Display * display,
                         XImage * image,
                         XImage * shapeimage,
                         XpmAttributes * attributes,
                         xpmInternAttrib * attrib));

FUNC(xpmVisualType, int, (Visual * visual));
FUNC(xpmFreeColorTable, int, (char ***colorTable, int ncolors));

FUNC(xpmInitInternAttrib, int, (xpmInternAttrib * xmpdata));

FUNC(xpmFreeInternAttrib, int, (xpmInternAttrib * xmpdata));

FUNC(xpmSetAttributes, int, (xpmInternAttrib * attrib,
                             XpmAttributes * attributes));

FUNC(xpmGetAttributes, int, (XpmAttributes * attributes,
                             xpmInternAttrib * attrib));

/* I/O utility */

FUNC(xpmNextString, int, (xpmData * mdata));
FUNC(xpmNextUI, int, (xpmData * mdata, unsigned int *ui_return));
FUNC(xpmGetC, int, (xpmData * mdata));
FUNC(xpmUngetC, int, (int c, xpmData * mdata));
FUNC(xpmNextWord, unsigned int, (xpmData * mdata, char *buf));
FUNC(xpmGetCmt, int, (xpmData * mdata, char **cmt));
FUNC(xpmReadFile, int, (char *filename, xpmData * mdata));
FUNC(xpmWriteFile, int, (char *filename, xpmData * mdata));
FUNC(xpmOpenArray, int, (char **data, xpmData * mdata));
FUNC(XpmDataClose, int, (xpmData * mdata));

/* RGB utility */

FUNC(xpmReadRgbNames, int, (char *rgb_fname, xpmRgbName * rgbn));
FUNC(xpmGetRgbName, char *, (xpmRgbName * rgbn, int rgbn_max,
                             int red, int green, int blue));
FUNC(xpmFreeRgbNames, void, (xpmRgbName * rgbn, int rgbn_max));

FUNC(xpm_xynormalizeimagebits, int, (register unsigned char *bp,
                                     register XImage * img));
FUNC(xpm_znormalizeimagebits, int, (register unsigned char *bp,
                                    register XImage * img));

/*
 * Macros
 *
 * The XYNORMALIZE macro determines whether XY format data requires
 * normalization and calls a routine to do so if needed. The logic in
 * this module is designed for LSBFirst byte and bit order, so
 * normalization is done as required to present the data in this order.
 *
 * The ZNORMALIZE macro performs byte and nibble order normalization if
 * required for Z format data.
 *
 * The XYINDEX macro computes the index to the starting byte (char) boundary
 * for a bitmap_unit containing a pixel with coordinates x and y for image
 * data in XY format.
 *
 * The ZINDEX* macros compute the index to the starting byte (char) boundary
 * for a pixel with coordinates x and y for image data in ZPixmap format.
 *
 */


#define XYNORMALIZE(bp, img) \
    if ((img->byte_order == MSBFirst) || (img->bitmap_bit_order == MSBFirst)) \
        xpm_xynormalizeimagebits((unsigned char *)(bp), img)


#define ZNORMALIZE(bp, img) \
    if (img->byte_order == MSBFirst) \
        xpm_znormalizeimagebits((unsigned char *)(bp), img)


#define XYINDEX(x, y, img) \
    ((y) * img->bytes_per_line) + \
    (((x) + img->xoffset) / img->bitmap_unit) * (img->bitmap_unit >> 3)


#define ZINDEX(x, y, img) ((y) * img->bytes_per_line) + \
    (((x) * img->bits_per_pixel) >> 3)


#define ZINDEX32(x, y, img) ((y) * img->bytes_per_line) + ((x) << 2)

#define ZINDEX16(x, y, img) ((y) * img->bytes_per_line) + ((x) << 1)

#define ZINDEX8(x, y, img) ((y) * img->bytes_per_line) + (x)

#define ZINDEX1(x, y, img) ((y) * img->bytes_per_line) + ((x) >> 3)

#if __STDC__
#define Const const
#else
#define Const                           /**/
#endif

#endif