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/* #ident "@(#)x11:contrib/clients/xloadimage/pcd.h 1.2 94/07/29 Labtam" */
/* */
/*
* pcd.h - header file for Photograph on CD image files.
*/
#define PCDSHIFT 11
#define PCDBLOCK (1 << PCDSHIFT)
#define PCDBMASK (PCDBLOCK-1)
#define BASEW 768
#define BASEH 512
#define SZ_B16 -2
#define SZ_B4 -1
#define SZ_B 0
#define SZ_4B 1
#define SZ_16B 2
#define PCD_NO_ROTATE 0
#define PCD_ACLOCK_ROTATE 1
#define PCD_CLOCK_ROTATE 2
/* PCD image information */
typedef struct {
ZFILE *zf;
unsigned long off; /* File byte offset of the start of the buffer */
int nob; /* Number of bytes currently in buffer */
byte buf[PCDBLOCK]; /* current block data */
byte *bp; /* Current byte pointer */
unsigned int bits; /* bits buffer */
int bytes_left; /* Bytes left from *bp */
int bits_left; /* Bits left in bits */
char *name; /* stash pointer to name here too */
char magic[8]; /* image format ident string (?) */
char source[89]; /* source (?) */
char owner[21]; /* owner (?) */
int rotate; /* rotation needed */
int size; /* Size code */
int width,height; /* Target width/height */
unsigned int xzoom,yzoom; /* User specified zoom percentages */
byte *Lp,*C1p,*C2p; /* Pointers to the color components */
} pcdHeader;
/* Huffman entry (16 bit signed int) */
typedef struct {
byte l; /* number of bits */
sbyte v; /* value */
} huff;
/* The file offset of the next read */
#define pcd_offset(hp) ((hp)->off + (hp)->nob)
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