#include <inttypes.h>

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;

    uint32_t       *lut_red;
    uint32_t       *lut_green;
    uint32_t       *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 int32_t  LUT_range[256 + 2 * RANGE];

extern uint32_t LUT_15_red[256];
extern uint32_t LUT_15_green[256];
extern uint32_t LUT_15_blue[256];

extern uint32_t LUT_16_red[256];
extern uint32_t LUT_16_green[256];
extern uint32_t LUT_16_blue[256];

extern uint32_t LUT_24_red[256];
extern uint32_t LUT_24_green[256];
extern uint32_t 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);
void            pcd_set_lookup(struct PCD_IMAGE *img, uint32_t *red,
			       uint32_t *green, uint32_t *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]); }