1 /* $Id: iff.h,v 1.2 2002-10-04 07:19:59 btb Exp $ */
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21 //Prototypes for IFF library functions
23 int iff_read_bitmap(char *ifilename,grs_bitmap *bm,int bitmap_type,ubyte *palette);
24 //reads an IFF file into a grs_bitmap structure. fills in palette if not null
25 //returns error codes - see IFF.H. see GR.H for bitmap_type
26 //MEM DETAILS: This routines assumes that you already have the grs_bitmap
27 //structure allocated, but that you don't have the data for this bitmap
28 //allocated. In other words, do this:
29 // grs_bitmap * MyPicture;
30 // MALLOC( MyPicture, grs_bitmap, 1);
31 // iff_read_bitmap( filename, MyPicture, BM_LINEAR, NULL );
32 // ...do whatever with your bitmap ...
33 // gr_free_bitmap( MyPicture );
36 //like iff_read_bitmap(), but reads into a bitmap that already exists,
37 //without allocating memory for the bitmap.
38 int iff_read_into_bitmap(char *ifilename,grs_bitmap *bm,byte *palette);
40 //read in animator brush (.abm) file
41 //fills in array of pointers, and n_bitmaps.
42 //returns iff error codes. max_bitmaps is size of array.
43 int iff_read_animbrush(char *ifilename,grs_bitmap **bm,int max_bitmaps,int *n_bitmaps,ubyte *palette);
46 extern ubyte iff_transparent_color;
47 extern ubyte iff_has_transparency; // 0=no transparency, 1=iff_transparent_color is valid
49 int iff_write_bitmap(char *ofilename,grs_bitmap *bm,ubyte *palette);
50 //writes an IFF file from a grs_bitmap structure. writes palette if not null
51 //returns error codes - see IFF.H.
53 //function to return pointer to error message
54 char *iff_errormsg(int error_number);
57 //Error codes for read & write routines
59 #define IFF_NO_ERROR 0 //everything is fine, have a nice day
60 #define IFF_NO_MEM 1 //not enough mem for loading or processing
61 #define IFF_UNKNOWN_FORM 2 //IFF file, but not a bitmap
62 #define IFF_NOT_IFF 3 //this isn't even an IFF file
63 #define IFF_NO_FILE 4 //cannot find or open file
64 #define IFF_BAD_BM_TYPE 5 //tried to save invalid type, like BM_RGB15
65 #define IFF_CORRUPT 6 //bad data in file
66 #define IFF_FORM_ANIM 7 //this is an anim, with non-anim load rtn
67 #define IFF_FORM_BITMAP 8 //this is not an anim, with anim load rtn
68 #define IFF_TOO_MANY_BMS 9 //anim read had more bitmaps than room for
69 #define IFF_UNKNOWN_MASK 10 //unknown masking type
70 #define IFF_READ_ERROR 11 //error reading from file
71 #define IFF_BM_MISMATCH 12 //bm being loaded doesn't match bm loaded into