1 #ifndef TINYGI_H_

2 #define TINYGI_H_

3

4 struct tinygi;

5 struct tgi_object;

6 struct tgi_shape;

7 struct tgi_material;

8

9 struct tinygi *tgi_init(void);

10 void tgi_destroy(struct tinygi *tgi);

11

12 void tgi_clear_scene(struct tinygi *tgi);

13 int tgi_load_scene(struct tinygi *tgi, const char *fname);

14 /* tinygi takes ownership of added objects */

15 void tgi_add_object(struct tinygi *tgi, struct tgi_object *o);

16 int tgi_remove_object(struct tinygi *tgi, struct tgi_object *o);

17

18 struct tgi_object *tgi_find_object(struct tinygi *tgi, const char *name);

19 struct tgi_object *tgi_get_object(struct tinygi *tgi, int idx);

20 int tgi_get_object_count(struct tinygi *tgi);

21

22 /* shapes */

23 struct tgi_shape *tgi_create_sphere(float x, float y, float z, float rad);

24 struct tgi_shape *tgi_create_box(float x0, float y0, float z0, float x1, float y1, float z1);

25 void tgi_destroy_shape(struct tgi_shape *s);

26

27 /* objects */

28 /* name can be null, in which case it's automatically generated */

29 struct tgi_object *tgi_create_object(const char *name);

30 void tgi_destroy_object(struct tgi_object *o);

31 /* object takes ownership of the shape */

32 void tgi_set_object_shape(struct tgi_object *o, struct tgi_shape *s);

33

34 /* mat should point to an array of 16 floats (4x4 homogeneous transformation matrix) */

35 void tgi_load_matrix(struct tgi_object *o, const float *mat);

36 void tgi_mult_matrix(struct tgi_object *o, const float *mat);

37 void tgi_load_identity(struct tgi_object *o);

38 void tgi_translate(struct tgi_object *o, float x, float y, float z);

39 void tgi_rotate(struct tgi_object *o, float angle, float x, float y, float z);

40 void tgi_scale(struct tgi_object *o, float x, float y, float z);

41 void tgi_lookat(struct tgi_object *o, float x, float y, float z,

42 float tx, float ty, float tz, float ux, float uy, float uz);

43

44 /* rendering */

45 float *tgi_begin(struct tinygi *tgi, int width, int height);

46 float *tgi_expose(struct tinygi *tgi, float gamma);

47

48 void tgi_render_frame(struct tinygi *tgi, int num_samples);

49 void tgi_render(struct tinygi *tgi, int sample_idx);

50 void tgi_render_rect(struct tinygi *tgi, int x, int y, int xsz, int ysz, int sample_idx);

51

52

53

54 #endif /* TINYGI_H_ */