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struct PCD_IMAGE {
int size;
unsigned char *mmap;
int thumbnails; /* # of thumbnails, 0 for normal image */
int res, nr, gray, verbose;
int left, top, width, height, rot;
unsigned char **luma;
unsigned char **red;
unsigned char **blue;
unsigned char *data;
unsigned long *lut_red;
unsigned long *lut_green;
unsigned long *lut_blue;
unsigned char *seq1; /* huffman tables */
unsigned char *len1;
unsigned char *seq2;
unsigned char *len2;
unsigned char *seq3;
unsigned char *len3;
};
/* --- file.c --- */
#define PCD_WIDTH(res,rot) (rot&1?pcd_def_height[res]:pcd_def_width[res])
#define PCD_HEIGHT(res,rot) (rot&1?pcd_def_width[res]:pcd_def_height[res])
extern char pcd_rotor[];
extern int pcd_img_start[];
extern int pcd_def_width[];
extern int pcd_def_height[];
extern char pcd_errmsg[];
int pcd_open(struct PCD_IMAGE *img, char *filename);
int pcd_get_rot(struct PCD_IMAGE *img, int nr);
int pcd_get_maxres(struct PCD_IMAGE *img);
int pcd_select(struct PCD_IMAGE *img, int res, int nr, int gray, int verbose,
int rot, int *left, int *top, int *width, int *height);
int pcd_free(struct PCD_IMAGE *img);
int pcd_close(struct PCD_IMAGE *img);
/* --- yuv2rgb.c --- */
#define RANGE 320
extern unsigned int LUT_range[256 + 2 * RANGE];
extern unsigned long LUT_15_red[256];
extern unsigned long LUT_15_green[256];
extern unsigned long LUT_15_blue[256];
extern unsigned long LUT_16_red[256];
extern unsigned long LUT_16_green[256];
extern unsigned long LUT_16_blue[256];
extern unsigned long LUT_24_red[256];
extern unsigned long LUT_24_green[256];
extern unsigned long LUT_24_blue[256];
#define PCD_TYPE_GRAY 1 /* gray - 1 byte/pixel */
#define PCD_TYPE_RGB 2 /* red,green,blue - 3 byte/pixel */
#define PCD_TYPE_BGR 3 /* blue,green,red - 3 byte/pixel */
#define PCD_TYPE_LUT_SHORT 4 /* lookup table - 2 byte/pixel */
#define PCD_TYPE_LUT_LONG 5 /* lookup table - 4 byte/pixel */
void pcd_get_LUT_init();
void pcd_set_lookup(struct PCD_IMAGE *img, unsigned long *red,
unsigned long *green, unsigned long *blue);
int pcd_get_image_line(struct PCD_IMAGE *img, int line,
unsigned char *dest, int type, int scale);
int pcd_get_image(struct PCD_IMAGE *img,
unsigned char *dest, int type, int scale);
/* --- huff.c --- */
int pcd_read_htable(unsigned char *src,
unsigned char **pseq, unsigned char **pbits);
int pcd_decode(struct PCD_IMAGE *img);
/* --- inter.c --- */
int pcd_inter_m2(struct PCD_IMAGE *img);
int pcd_inter_pixels(unsigned char **data, int width, int height);
int pcd_inter_lines(unsigned char **data, int width, int height);
/* ----------------------------------------------------------------- */
#define TELL(x) { if(img->verbose) fputc(x,stderr); }
#define ROTOR(x) { if(img->verbose) fprintf(stderr,"%c\010",pcd_rotor[x&3]); }
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