/*
  This file is Copyright © 1994-1995 Olivier Montanuy,
               Copyright © 1999-2005 André Majorel,
               Copyright © 2006-2017 contributors to the DeuTex project.

  DeuTex incorporates code derived from DEU 5.21 that was put in the
  public domain in 1994 by Raphaël Quinet and Brendon Wyber.

  SPDX-License-Identifier: GPL-2.0+
*/

#include "config.h"

#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

/* fopen() modes */
#define FOPEN_RB        "rb"
#define FOPEN_RBP       "rb+"
#define FOPEN_WB        "wb"
#define FOPEN_RT        "r"
#define FOPEN_WT        "w"
#define FOPEN_AT        "a"
#define FOPEN_AB        "a"

/* Number of bytes to read from or write to a file */
typedef unsigned long iolen_t;

#define MEMORYCACHE  (0x8000L)
/* steps to increase size of WAD directory*/
#define MAXPWADDIR      (128)
/*Add 64000 bytes of pure junk, because of a bug in DEU5.21 */
#define MAXJUNK64       (1000)
/*special value, means int is not valid*/
#define INVALIDINT      (-6666)
/*indicate an extern WAD entry*/
#define EXTERNAL  (0x80000000L)

/* Wad magic numbers */
#define IWADMAGIC       0x5749  /* little-endian 16-bit int for "IW" */
#define PWADMAGIC       0x5750  /* little-endian 16-bit int for "PW" */
#define WADMAGIC        0x4441  /* little-endian 16-bit int for "AD" */

/*type of WAD files. correspond to 1st half of name*/
typedef int16_t WADTYPE;
#define IWAD (IWADMAGIC)
#define PWAD (PWADMAGIC)

/* Number of entries in the game palette */
#define NCOLOURS 256

/* Entry selection Bits*/
typedef int16_t NTRYB;
#define BLEVEL          (0x0001)
#define BLUMP           (0x0002)
#define BSOUND          (0x0004)
#define BTEXTUR         (0x0008)
#define BGRAPHIC        (0x0010)
#define BSPRITE         (0x0020)
#define BPATCH          (0x0040)
#define BFLAT           (0x0080)
#define BMUSIC          (0x0100)
#define BSNEAP          (0x0200)
#define BSNEAT          (0x0400)
#define BSCRIPT         (0x0800)
#define BSNEA           (BSNEAP|BSNEAT)
#define BALL            (0x7FFF)

typedef int16_t SNDTYPE;
#define SNDNONE         (0)
#define SNDWAV          (2)
typedef int16_t IMGTYPE;
#define PICNONE         (0)
#define PICBMP          (1)
#define PICGIF          (2)
#define PICPPM          (3)
#define PICWAD          (5)
#ifdef HAVE_LIBPNG
#define PICPNG          (6)
#endif

/*wad directory*/
struct WADDIR {                 /*same as in doom */
    int32_t start;              /*start of entry */
    int32_t size;               /*size of entry */
    char name[8];               /*name of entry */
};

struct WADINFO {
    int32_t ntry;               /*entries in dir */
    int32_t dirpos;             /*position of dir */
    struct WADDIR *dir;         /*directory */
    int32_t maxdir;             /*max nb of entry in dir */
    int32_t wposit;             /*position for write */
    int32_t maxpos;             /*farther referenced byte in WAD */
    FILE *fd;                   /* File pointer */
    char *filename;             /* Pointer on block malloc'd by WADRopen*() and
                                   free'd by WADRclose() and containing the name
                                   of the file. */
    char ok;                    /*security ok&1=read ok&2=write */
};

typedef int16_t PICTYPE;
#define PGRAPH  0x02
#define PWEAPN  0x04
#define PSPRIT  0x06
#define PPATCH  0x08
#define PFLAT   0x0a
#define PLUMP   0x0c
#define PSNEAP  0x0d
#define PSNEAT  0x0e

typedef int16_t ENTRY;
#define EMASK           0xFF00
#define EVOID           0x0000
#define ELEVEL          0x0100
#define EMAP            0x0200  /*Levels (doom1) and Maps(Doom2) */
#define ELUMP           0x0300
#define ETEXTUR         0x0400
#define EPNAME          0x0500  /*textures */
#define ESOUND          0x0600
#define   ESNDPC        0x0601
#define   ESNDWAV       0x0602
#define EGRAPHIC        0x0700
#define ESPRITE         0x0800
#define EPATCH          0x0900
#define   EPATCH1       0x0901
#define   EPATCH2       0x0902
#define   EPATCH3       0x0903
#define EFLAT           0x0A00
#define   EFLAT1        0x0A01
#define   EFLAT2        0x0A02
#define   EFLAT3        0x0A03
#define EMUSIC          0x0B00
#define   EMUS          0x0B01
#define   EMIDI         0x0B02
#define EDATA           0x1000
#define ESNEA           0x2000
#define   ESNEAP        0x2001  /* Snea using PLAYPAL */
#define   ESNEAT        0x2002  /* Snea using TITLEPAL */
#define ESSCRIPT        0x3000  /* Strife script (SCRIPTnn) */
#define EZZZZ           0x7F00  /*unidentified entries */

void CMPOmakePWAD(const char *doomwad, WADTYPE type, const char *PWADname,
                  const char *DataDir, const char *texin, NTRYB select,
                  char trnR, char trnG, char trnB, bool George);
void EXE2list(FILE * out, char *doomexe, int32_t start, int16_t thres);
void EXEsubstit(const char *texin, const char *doomexe, int32_t start,
                int16_t thres);

void XTRlistDir(const char *doomwad, const char *wadin, NTRYB select);

void XTRvoidSpacesInWAD(const char *wadin);

void XTRcompakWAD(const char *DataDir, const char *wadin, const char
                  *texout, bool ShowIdx);
void XTRstructureTest(const char *doomwad, const char *wadin);
void XTRtextureUsed(const char *wadin);

/*
 *      Types defined elsewhere
 */
struct cusage_s;
typedef struct cusage_s cusage_t;

/*
 *      Misc globals, set by command line arguments
 */
typedef enum { PF_NORMAL, PF_ALPHA, PF_PR } picture_format_t;
typedef enum { TF_NORMAL, TF_NAMELESS, TF_NONE,
    TF_STRIFE11
} texture_format_t;
typedef enum { TL_NORMAL, TL_TEXTURES, TL_NONE } texture_lump_t;
typedef enum { RP_REJECT, RP_FORCE, RP_WARN, RP_ACCEPT } rate_policy_t;
typedef enum { CLOBBER_YES, CLOBBER_NO, CLOBBER_ASK } clobber_t;
extern picture_format_t picture_format;
extern texture_format_t input_texture_format;
extern texture_format_t output_texture_format;
extern texture_lump_t texture_lump;
extern rate_policy_t rate_policy;
extern clobber_t clobber;
extern const char *debug_ident;
extern const char *palette_lump;
