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PcView
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VIEW.H
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1988-11-22
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2KB
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65 lines
/* View.h - View.C support file (PC version) : (c) 1988 DJH */
#define TITLE "Pc-View 2.1 : (c) 1988 John Hodgson\n"
#define LOWIDTH 320 /* max lores width */
#define LOHEIGHT 200 /* max non-interlaced height */
#define MAXPLANES 8 /* max # planes support (VGA!) */
#define MAXCLRS (1<<MAXPLANES) /* max # colors supported (VGA!) */
#define LINELEN (1024/8) /* arbitrary max line buffer length */
/* Since Intel chips store their constants in reverse order, this MakeID
builds its constants in reverse order so the Motorola constants will
match even after being read into Intel machines. */
#define MakeID(a,b,c,d) ((long)d<<24 | (long)c<<16 | b<<8 | a)
#define ID_FORM MakeID('F','O','R','M')
#define ID_ILBM MakeID('I','L','B','M')
#define ID_BMHD MakeID('B','M','H','D')
#define ID_CAMG MakeID('C','A','M','G')
#define ID_CMAP MakeID('C','M','A','P')
#define ID_BODY MakeID('B','O','D','Y')
#define cmpByteRun1 1
#define ROUNDODDUP(a) (((a)+1)&(~1L))
enum colors { RGB_RED,RGB_GREEN,RGB_BLUE };
/* masking types */
#define mskNone 0
#define mskHasMask 1
#define mskHasTransparentColor 2
#define mskLasso 3
typedef struct {
long ckID,ckSize;
} Chunk;
typedef struct {
short w,h,x,y;
char nPlanes,masking,compression,pad1;
short transparentColor;
char xAspect, yAspect;
short pageWidth,pageHeight;
} BitMapHeader;
/* Non-IFF related structures */
#define TRUE 1
struct Screen {
short width,
height,
compression,
mask,
planes,
colors;
long ViewModes;
unsigned char colormap[MAXCLRS][3],
huge *buffer;
};