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/* Definitions for Xconq images.
Copyright (C) 1992-1998 Stanley T. Shebs.
Xconq is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version. See the file COPYING. */
/* An image family is like a Mac Finder icon family, but allows
multiple kinds of images of an arbitrary set of sizes. Individual
images in a family may have both "lisp" form and "raw" form, the
former being used for reading and writing, while the raw form is
an intermediary for conversion to and from platform-specific
representations. */
typedef struct a_image {
int w, h; /* Nominal size of the image */
int istile; /* True if image may be used as tile */
char *embedname; /* Name of an embedded subimage (imf name) */
int embedx, embedy; /* Position to draw an embedded subimage */
int embedw, embedh; /* Size of space for embedded subimage */
Obj *monodata; /* Monochrome data, in GDL form */
Obj *colrdata; /* Color data, in GDL form */
Obj *maskdata; /* Mask data, in GDL form */
int actualw, actualh;
int pixelsize; /* Number of bits per pixel */
Obj *palette; /* Color palette, in list form */
Obj *notes; /* designer notes about the image */
int synthetic; /* True if image was computed */
char *rawmonodata; /* Monochrome data, as array of bytes */
char *rawcolrdata; /* Color data, as array of bytes */
char *rawmaskdata; /* Mask data, as array of bytes */
int *rawpalette; /* Color palette, in raw form */
int numcolors; /* Number of colors in raw palette */
int bboxx, bboxy; /* Position of actual data within image */
int bboxw, bboxh; /* Dimensions of actual data within image */
char *hook; /* Pointer to interface-specific data */
struct a_image *next; /* Pointer to next image in family */
} Image;
typedef struct a_image_family {
char *name; /* Name of the family */
short ersatz; /* True if this image is a substitute */
struct a_image_file *location; /* File or whatever to look for data */
Obj *notes; /* designer notes about the image family */
char *hook; /* Pointer to interface-specific data */
short numsizes; /* Number of images in the list */
Image *images; /* Pointer to chain of images */
} ImageFamily;
typedef struct a_image_palette {
char *name; /* Name of the palette */
struct a_image_file *location; /* File or whatever to look for data */
Obj *notes; /* designer notes about the palette */
Obj *palette; /* List of colors */
int numcolors; /* Number of colors in the palette */
} ImagePalette;
typedef struct a_image_file {
char *name; /* Name of the file */
int loaded; /* True if it has already been loaded */
struct a_image_file *next; /* Link to the next file. */
} ImageFile;
extern ImageFamily **images;
extern int numimages;
extern ImagePalette **palettes;
extern int numpalettes;
extern ImageFile *image_files;
extern ImageFamily *(*imf_load_hook) PARAMS ((ImageFamily *imf));
extern ImageFamily *(*imf_interp_hook) PARAMS ((ImageFamily *imf, Image *img, int force));
#define computed_rowbytes(w, pixelsize) (((w * pixelsize) + 7) / 8)
#define hextoi(c) (((c) >= '0' && (c) <= '9') ? ((c) - '0') : ((c) - 'a' + 10))
#define for_all_images(imf,img) \
for ((img) = (imf)->images; (img) != NULL; (img) = (img)->next)
typedef void (*readimf_hook) PARAMS ((ImageFamily *, int));
extern ImageFamily *clone_imf PARAMS ((ImageFamily *imf));
extern ImageFamily *get_imf PARAMS ((char *name));
extern ImageFamily *find_imf PARAMS ((char *name));
extern Image *find_img PARAMS ((ImageFamily *imf, int w, int h));
extern Image *get_img PARAMS ((ImageFamily *imf, int w, int h));
extern int valid_imf_name PARAMS ((char *name));
extern char *canonical_palette_name PARAMS ((char *str));
extern ImagePalette *new_image_palette PARAMS ((char *name));
extern ImagePalette *get_imp PARAMS ((char *name));
extern ImagePalette *find_imp PARAMS ((char *name));
extern ImageFile *get_image_file PARAMS ((char *name));
extern void load_image_families PARAMS ((FILE *fp, int loadnow,
readimf_hook callback));
extern int load_imf_file PARAMS ((char *filename,
readimf_hook callback));
extern void interp_imf_form PARAMS ((Obj *form,
readimf_hook callback));
extern ImageFamily *interp_imf PARAMS ((Obj *form));
extern void interp_imf_contents PARAMS ((ImageFamily *imf, Obj *form));
extern void interp_image PARAMS ((ImageFamily *imf, Obj *size, Obj *parts));
extern void interp_bytes PARAMS ((Obj *datalist, int numbytes, char *destaddr,
int jump));
extern ImagePalette *interp_palette PARAMS ((Obj *form));
extern Image *best_image PARAMS ((ImageFamily *imf, int w, int h));
extern Image *smallest_image PARAMS ((ImageFamily *imf));
extern int emblem_position PARAMS ((Image *uimg, char *ename, Image *eimg,
int sw, int sh,
int *exxp, int *eyyp, int *ewp, int *ehp));
extern void sort_all_images PARAMS ((void));
extern void sort_all_palettes PARAMS ((void));
extern void check_imf PARAMS ((ImageFamily *imf));
extern void write_imf PARAMS ((FILE *fp, ImageFamily *imf));
extern void write_imp PARAMS ((FILE *fp, ImagePalette *imp));
extern void make_generic_image_data PARAMS ((ImageFamily *imf));
extern void validify_imf_name PARAMS ((char *buf));
extern void compute_image_bboxes PARAMS ((ImageFamily *imf));
extern void compute_image_bbox PARAMS ((Image *img));
extern void write_imf_dir PARAMS ((char *filename, ImageFamily **images,
int num));
extern char *find_color_name PARAMS ((int r, int g, int b));
extern void parse_lisp_palette_entry PARAMS ((Obj *palentry, int *c,
int *r, int *g, int *b));
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