/usr/include/allegro/3d.h is in liballegro4-dev 2:4.4.2-10.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* /\ _ \ /\_ \ /\_ \
* \ \ \L\ \\//\ \ \//\ \ __ __ _ __ ___
* \ \ __ \ \ \ \ \ \ \ /'__`\ /'_ `\/\`'__\/ __`\
* \ \ \/\ \ \_\ \_ \_\ \_/\ __//\ \L\ \ \ \//\ \L\ \
* \ \_\ \_\/\____\/\____\ \____\ \____ \ \_\\ \____/
* \/_/\/_/\/____/\/____/\/____/\/___L\ \/_/ \/___/
* /\____/
* \_/__/
*
* 3D polygon drawing routines.
*
* By Shawn Hargreaves.
*
* See readme.txt for copyright information.
*/
#ifndef ALLEGRO_3D_H
#define ALLEGRO_3D_H
#include "base.h"
#include "fixed.h"
#ifdef __cplusplus
extern "C" {
#endif
struct BITMAP;
typedef struct V3D /* a 3d point (fixed point version) */
{
fixed x, y, z; /* position */
fixed u, v; /* texture map coordinates */
int c; /* color */
} V3D;
typedef struct V3D_f /* a 3d point (floating point version) */
{
float x, y, z; /* position */
float u, v; /* texture map coordinates */
int c; /* color */
} V3D_f;
#define POLYTYPE_FLAT 0
#define POLYTYPE_GCOL 1
#define POLYTYPE_GRGB 2
#define POLYTYPE_ATEX 3
#define POLYTYPE_PTEX 4
#define POLYTYPE_ATEX_MASK 5
#define POLYTYPE_PTEX_MASK 6
#define POLYTYPE_ATEX_LIT 7
#define POLYTYPE_PTEX_LIT 8
#define POLYTYPE_ATEX_MASK_LIT 9
#define POLYTYPE_PTEX_MASK_LIT 10
#define POLYTYPE_ATEX_TRANS 11
#define POLYTYPE_PTEX_TRANS 12
#define POLYTYPE_ATEX_MASK_TRANS 13
#define POLYTYPE_PTEX_MASK_TRANS 14
#define POLYTYPE_MAX 15
#define POLYTYPE_ZBUF 16
AL_VAR(float, scene_gap);
AL_FUNC(void, _soft_polygon3d, (struct BITMAP *bmp, int type, struct BITMAP *texture, int vc, V3D *vtx[]));
AL_FUNC(void, _soft_polygon3d_f, (struct BITMAP *bmp, int type, struct BITMAP *texture, int vc, V3D_f *vtx[]));
AL_FUNC(void, _soft_triangle3d, (struct BITMAP *bmp, int type, struct BITMAP *texture, V3D *v1, V3D *v2, V3D *v3));
AL_FUNC(void, _soft_triangle3d_f, (struct BITMAP *bmp, int type, struct BITMAP *texture, V3D_f *v1, V3D_f *v2, V3D_f *v3));
AL_FUNC(void, _soft_quad3d, (struct BITMAP *bmp, int type, struct BITMAP *texture, V3D *v1, V3D *v2, V3D *v3, V3D *v4));
AL_FUNC(void, _soft_quad3d_f, (struct BITMAP *bmp, int type, struct BITMAP *texture, V3D_f *v1, V3D_f *v2, V3D_f *v3, V3D_f *v4));
AL_FUNC(int, clip3d, (int type, fixed min_z, fixed max_z, int vc, AL_CONST V3D *vtx[], V3D *vout[], V3D *vtmp[], int out[]));
AL_FUNC(int, clip3d_f, (int type, float min_z, float max_z, int vc, AL_CONST V3D_f *vtx[], V3D_f *vout[], V3D_f *vtmp[], int out[]));
AL_FUNC(fixed, polygon_z_normal, (AL_CONST V3D *v1, AL_CONST V3D *v2, AL_CONST V3D *v3));
AL_FUNC(float, polygon_z_normal_f, (AL_CONST V3D_f *v1, AL_CONST V3D_f *v2, AL_CONST V3D_f *v3));
/* Note: You are not supposed to mix ZBUFFER with BITMAP even though it is
* currently possible. This is just the internal representation, and it may
* change in the future.
*/
typedef struct BITMAP ZBUFFER;
AL_FUNC(ZBUFFER *, create_zbuffer, (struct BITMAP *bmp));
AL_FUNC(ZBUFFER *, create_sub_zbuffer, (ZBUFFER *parent, int x, int y, int width, int height));
AL_FUNC(void, set_zbuffer, (ZBUFFER *zbuf));
AL_FUNC(void, clear_zbuffer, (ZBUFFER *zbuf, float z));
AL_FUNC(void, destroy_zbuffer, (ZBUFFER *zbuf));
AL_FUNC(int, create_scene, (int nedge, int npoly));
AL_FUNC(void, clear_scene, (struct BITMAP* bmp));
AL_FUNC(void, destroy_scene, (void));
AL_FUNC(int, scene_polygon3d, (int type, struct BITMAP *texture, int vx, V3D *vtx[]));
AL_FUNC(int, scene_polygon3d_f, (int type, struct BITMAP *texture, int vx, V3D_f *vtx[]));
AL_FUNC(void, render_scene, (void));
#ifdef __cplusplus
}
#endif
#endif /* ifndef ALLEGRO_3D_H */
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