1 /* $Id: interp.h,v 1.5 2003-02-13 22:02:29 btb Exp $ */
4 * took out functions declarations from include/3d.h
5 * which are implemented in 3d/interp.c
13 //#include "vecmat.h" //the vector/matrix library
20 //gives the interpreter an array of points to use
21 void g3_set_interp_points(g3s_point *pointlist);
23 //calls the object interpreter to render an object. The object renderer
24 //is really a seperate pipeline. returns true if drew
25 bool g3_draw_polygon_model(void *model_ptr,grs_bitmap **model_bitmaps,vms_angvec *anim_angles,fix light,fix *glow_values);
27 //init code for bitmap models
28 void g3_init_polygon_model(void *model_ptr);
30 //un-initialize, i.e., convert color entries back to RGB15
31 void g3_uninit_polygon_model(void *model_ptr);
33 //alternate interpreter for morphing object
34 bool g3_draw_morphing_model(void *model_ptr,grs_bitmap **model_bitmaps,vms_angvec *anim_angles,fix light,vms_vector *new_points);
36 //this remaps the 15bpp colors for the models into a new palette. It should
37 //be called whenever the palette changes
38 void g3_remap_interp_colors(void);
40 #ifdef WORDS_BIGENDIAN
41 // routine to convert little to big endian in polygon model data
42 void swap_polygon_model_data(ubyte *data);
45 #ifdef WORDS_NEED_ALIGNMENT
47 * A chunk struct (as used for alignment) contains all relevant data
48 * concerning a piece of data that may need to be aligned.
49 * To align it, we need to copy it to an aligned position,
50 * and update all pointers to it.
51 * (Those pointers are actually offsets
52 * relative to start of model_data) to it.
54 typedef struct chunk {
55 ubyte *old_base; // where the offset sets off from (relative to beginning of model_data)
56 ubyte *new_base; // where the base is in the aligned structure
57 short offset; // how much to add to base to get the address of the offset
58 short correction; // how much the value of the offset must be shifted for alignment
60 #define MAX_CHUNKS 100 // increase if insufficent
62 * finds what chunks the data points to, adds them to the chunk_list,
63 * and returns the length of the current chunk
65 int get_chunks(ubyte *data, ubyte *new_data, chunk *list, int *no);
66 #endif //def WORDS_NEED_ALIGNMENT