diff options
Diffstat (limited to 'pcd.h')
| -rw-r--r-- | pcd.h | 88 |
1 files changed, 88 insertions, 0 deletions
@@ -0,0 +1,88 @@ +#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]); } |