Category : C Source Code
Archive   : IMDSRC78.ZIP
Filename : IMDEF.H

/**** IMDEF.H

Header file for IMDEF.H
Built by A. Warnock, ST Systems Corp., NASA/GSFC 5/90
This file contains only the various defined symbols for IMDISP
and it's associated modules.

****/

/* * * * External Function Prototypes * * * */


/* * * * External Global Variables * * * */
/*
This is the structure for the color palette.
The current palette is stored in PaletteTable.
*/
typedef struct Color
{
unsigned char r, g, b;
} Color ;

typedef struct Buffer
{
int location;
int handle;
int dispns;
int dispnl;
char file[80];
} Buffer;

/* * * * External Global Symbols * * * */

#define ALLOC_DTA 26 /* MS-DOS Int 21h Service */
#define CONTROL_LEFT_ARROW 243 /* Extended ASCII code */
#define CONTROL_RIGHT_ARROW 244 /* Extended ASCII code */
#define CURSORSIZE 9 /* The size of the cursor box square */
#define DOWN_ARROW 208 /* Extended ASCII code */
#define DOWN_LEFT_ARROW 207 /* Extended ASCII code */
#define DOWN_RIGHT_ARROW 209 /* Extended ASCII code */
#define END 207 /* Extended ASCII code */
#define ESCAPE 27 /* ASCII code */
#define FALSE 0
#define FREE 1 /* FREE block indicator */
#define GET_CUR_DIR 0x47 /* MS-DOS Int 21h Service */
#define HELP 63
#define HOME 199 /* Extended ASCII code */
#define INC 32
#define ImBufMax 30720 /* Size of the buffer for each open file */
/* the possible logical block sizes */
/* Buffer must be integral number of times */
#define LEFT_ARROW 203 /* Extended ASCII code */
#define LabelBufferLen 12288 /* Amount of label read in to parse */
#define MAXBATCHFILES 10 /* Max # of open batch files */
#define MAXBLOCK 0xffff /* Maximum block size */
#define MAXBUFFERS 26 /* Maximum buffers */
#define MAXDISPNL 768 /* The maximum number of lines of all displays */
#define MAXDISPNS 1024 /* The maximum number of samples of all displays */
#define MAXFONTSTROKES 3000 /* The size of the text font array */
#define MAXNUMFILES 512
#define MAXRECALL 20 /* Max commands to be recalled */
#define MINALLOC 128 /* Minimum MBSize value */
#define MINUSSTEP 45 /* ASCII code */
#define MaxNumImages 3 /* Maximum number of open images */
#define MaxOpenFiles 10 /* Maximum number of open files at one time */
#define NALLOC 16 /* Number of bytes per paragraph */
#define NCOMMANDS 45 /* Number of IMDISP commands */
#define PAGELEN dispnl/20
#define PLUSSTEP 43 /* ASCII code */
#define P_DATA 0x3c9 /* VGA Palette Data port */
#define P_READ 0x3c7 /* VGA Palette Read port */
#define P_WRITE 0x3c8 /* VGA Palette Write port */
#define RETURN 13 /* ASCII code */
#define RIGHT_ARROW 205 /* Extended ASCII code */
#define SELECT_ITEM 13 /* ASCII code */
#define SEL_DRIVE 14 /* MS-DOS Int 21h Service */
#define SRCH_FIRST 78 /* MS-DOS Int 21h Service */
#define SRCH_NEXT 79 /* MS-DOS Int 21h Service */
#define TRUE 1
#define UP_ARROW 200 /* Extended ASCII code */
#define UP_LEFT_ARROW 199 /* Extended ASCII code */
#define UP_RIGHT_ARROW 201 /* Extended ASCII code */
#define WHAT_DRIVE 25 /* MS-DOS Int 21h Service */
#define X_DIR 59 /* MS-DOS Int 21h Service */

#define DISPMAXNUM (3*(dispnl/(TextHeight+5)-5))
#define MAXALLOC NALLOC * ( ( MAXBLOCK-HSIZE-SSIZE ) / NALLOC )
#define SSIZE sizeof ( SUNIT ) /* Size of SUNIT */

/* Used to define where the refresh buffer resides - Ron Baalke - 05/04/91 */

#define NOWHERE -3
#define IMAGE -2
#define SCREEN -1
#define VIRTUAL_FILE 1
#define EXTENDED_MEMORY 2
#define EXPANDED_MEMORY 3


/* Used to define the file format type when saving an image */
/* Ron Baalke 02/15/92 */

#define PDS_FORMAT 0
#define GIF_FORMAT 1
#define RAW_FORMAT 2

/* * * * External Global Functions * * * */

#define Round(x) ( ((x) > 0.0) ? (int)((x)+0.5) : (int)((x)-0.5) )
#define READ_PALETTE(index,r,g,b){outp(P_READ,index);r=inp(P_DATA);g=inp(P_DATA);b=inp(P_DATA);}
#define SET_PALETTE(index,r,g,b) {outp(P_WRITE,index);outp(P_DATA,r);outp(P_DATA,g);outp(P_DATA,b);}