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/*
ACfax - Fax reception with X11-interface for amateur radio
Copyright (C) 1995-1998 Andreas Czechanowski, DL4SDC
This program 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.
This program 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.
andreas.czechanowski@ins.uni-stuttgart.de
*/
/*
* fax_funcs.h : function declarations and external variable declarations
* for all fax-related computing
*/
/* This is the size of the internal raw image storage. Adjust it so that
the largest picture to expect can fit into memory (4000 * time_in_sec) */
#define CORESIZE (4560 << 10)
#define COREMAX (CORESIZE - 1)
/* set this to pre-define a directory for saving fax-pictures */
#define FAX_SAVEDIR "."
/* #define FAX_SAVEDIR "/usr/local/faxsave" */
/* define this if you run on 8-bit X-displays only, it can speed up the
image-redrawing by replacing XPutPixel by direct access to memory : */
/* #define FAST8BIT */
/* debugging flags */
#define DEBUG 0
#define DBG_APT 2
#define DBG_SYN 4
/* decoding function: initialisation types (see fax_funcs.c) */
#define D_CPINIT 0x00000001
#define D_WDINIT 0x00000002
#define D_LDINIT 0x00000004
#define D_INITS 0x00000007
#define D_ALLOWX 0x00000008
#define D_FLUSHIMG 0x00000010
/* inverting of color- or grayscale-map, color-flip and rotation possibilities */
#define FAX_CNOR 0x00000001
#define FAX_CINV 0x00000002
#define FAX_POL 0x00000003
#define FAX_CUNFL 0x00000004
#define FAX_CFLIP 0x00000008
#define FAX_CFLS 0x0000000c
#define FAX_CROT0 0x00000010
#define FAX_CROT1 0x00000020
#define FAX_CROT2 0x00000030
#define FAX_CROTS 0x00000030
#define FAX_CMODS (FAX_CROTS | FAX_CFLS | FAX_POL)
/* writing directions for the FAX transmission and reception */
#define FAX_DIR 0x00000f00
#define FAX_TOP2BOT 0x00000100
#define FAX_BOT2TOP 0x00000200
#define FAX_LEF2RIG 0x00000400
#define FAX_RIG2LEF 0x00000800
/* direction order / line direction */
#define FAX_ROT 0x00003000
#define FAX_HOR 0x00001000
#define FAX_VER 0x00002000
/* phase-signal polarity */
#define FAX_PHS 0x0000c000
#define FAX_PWHT 0x00004000
#define FAX_PBLK 0x00008000
/* color mode definitions */
#define FAX_CMODE 0x000f0000
#define FAX_GRAY 0x00010000
#define FAX_COLOR 0x00020000
/* fax receiver/transmitter status flag */
#define FAX_APT 1
#define FAX_PHAS 2
#define FAX_RX 3
#define FATX_APTA 16
#define FATX_PHAS 17
#define FATX_TX 18
#define FATX_APTB 19
/* fax file-save opearations */
#define F_DOSAVE 0 /* save image with captured parameters & close */
#define F_OPEN 1 /* open new savefile, write header */
#define F_CLOSE 2 /* close savefile, correct header */
#define F_GETDIM 3 /* capture current parameters for saving */
/* fax file-save return values */
#define SAVE_OK 0
#define SAVE_NPERM 1
#define SAVE_BUSY 2
#define SAVE_NFILE 3
/* fax apt-transmit initialisation commands */
#define APTX_ISTART 1
#define APTX_ISTOP 2
struct fax_savestruct {
char *name;
int width;
int height;
};
/*
* NOTE : these variables are made global for read-only purposes !
* to change any of these, use setup_fax().
*/
extern int lpm; /* current lines-per-minute */
extern int ixoc; /* current index-of-cooperation */
extern int devi; /* current selected deviation (for FM) */
extern int mod_mode; /* current filter and mod.mode (see mod_demod.h) */
extern int vertical; /* writing direction order vertical first */
extern int right2left; /* writing direction horizontal */
extern int bot2top; /* writing direction vertical */
extern int invphase; /* inverse phase detection */
extern int invimage; /* inverse image display */
/*
* these may be changed directly :
*/
extern int aptstart; /* current APT start frequency */
extern int aptstop; /* current APT stop frequency */
extern void (*update_area)(XImage *, int, int, int, int, unsigned, unsigned);
extern void (*mode_notify)(int);
extern FILE *fsfile;
void init_fax(void);
void exit_fax(void);
void setup_fax(int, int, unsigned,
Widget, unsigned, unsigned,
int, unsigned);
void receive_on(void);
void receive_off(void);
#ifdef DSP_SELECT
void fax_rx_backgnd(XtPointer, int *, XtInputId *);
#else
void fax_rx_backgnd(XtPointer, XtIntervalId *);
#endif
void decode_fax_gray(int);
int save_faxfile(char *, int);
void close_faxsave(void);
int save_fax_gray(int, int);
void faxsave_complete(int);
void sync_phase(int);
void decode_apt(int);
void apt_control(int);
void fax_rx_start(int);
void fax_rx_phase(int);
void fax_rx_stop(int);
void shift_fax_coords(unsigned, unsigned);
void correct_fax_azimut(int, int);
void fax_tx_stop(int);
void fax_tx_start(int);
void fax_tx_apta(int);
void fax_tx_aptb(int);
void fax_tx_phase(int);
int load_txfile(char *name);
#ifdef DSP_SELECT
void fax_tx_backgnd(XtPointer client_data, int *, XtInputId *xid);
#else
void fax_tx_backgnd(XtPointer client_data, XtIntervalId *xid);
#endif
void transmit_fax_gray(int init);
void transmit_apt(int init);
void transmit_phase(int init);
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