1 /*

2 256-color 3D graphics hack for real-mode DOS.

3 Copyright (C) 2011 John Tsiombikas <nuclear@member.fsf.org>

4

5 This program is free software: you can redistribute it and/or modify

6 it under the terms of the GNU General Public License as published by

7 the Free Software Foundation, either version 3 of the License, or

8 (at your option) any later version.

9

10 This program is distributed in the hope that it will be useful,

11 but WITHOUT ANY WARRANTY; without even the implied warranty of

12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

13 GNU General Public License for more details.

14

15 You should have received a copy of the GNU General Public License

16 along with this program. If not, see <http://www.gnu.org/licenses/>.

17 */

18 #ifndef MINGL_H_

19 #define MINGL_H_

20

21 /* enable bitflags */

22 #define MGL_CULL_FACE 1

23 #define MGL_DEPTH_TEST 2

24 #define MGL_SMOOTH 4

25 #define MGL_LIGHTING 8

26

27 /* primitives */

28 #define MGL_POINTS 1

29 #define MGL_LINES 2

30 #define MGL_TRIANGLES 3

31 #define MGL_QUADS 4

32

33 /* matrices */

34 #define MGL_MODELVIEW 0

35 #define MGL_PROJECTION 1

36 #define MGL_TEXTURE 2

37

38 #define MGL_FRONT 0

39 #define MGL_BACK 1

40

41 #define MGL_CCW 0

42 #define MGL_CW 1

43

44 int mgl_init(int width, int height);

45 void mgl_free(void);

46

47 unsigned char *mgl_framebuffer(void);

48

49 void mgl_clear(int cidx);

50

51 void mgl_enable(unsigned int bit);

52 void mgl_disable(unsigned int bit);

53

54 void mgl_front_face(int ff);

55 void mgl_cull_face(int cf);

56

57 void mgl_color_range(int rng);

58 void mgl_light_intensity(int ltidx, float intens);

59 void mgl_light_direction(int ltidx, float x, float y, float z);

60

61 void mgl_begin(int prim);

62 void mgl_end(void);

63

64 void mgl_vertex2f(float x, float y);

65 void mgl_vertex3f(float x, float y, float z);

66 void mgl_vertex4f(float x, float y, float z, float w);

67 void mgl_color1f(float energy);

68 void mgl_index(int cidx);

69 void mgl_normal(float x, float y, float z);

70 void mgl_texcoord2f(float x, float y);

71

72 void mgl_viewport(int x, int y, int width, int height);

73

74 void mgl_matrix_mode(int mmode);

75 void mgl_push_matrix(void);

76 void mgl_pop_matrix(void);

77 void mgl_load_matrix(float *mat);

78 void mgl_mult_matrix(float *mat);

79 void mgl_load_identity(void);

80

81 void mgl_translate(float x, float y, float z);

82 void mgl_rotate(float angle, float x, float y, float z);

83 void mgl_scale(float x, float y, float z);

84

85 void mgl_ortho(float left, float right, float bottom, float top, float nr, float fr);

86 void mgl_frustum(float left, float right, float bottom, float top, float nr, float fr);

87 void mgl_perspective(float vfov, float aspect, float nr, float fr);

88

89 void mgl_cube(float sz);

90 void mgl_sphere(float rad, int usub, int vsub);

91 void mgl_sphere_part(float rad, int usub, int vsub, float umax, float vmax);

92 void mgl_torus(float inner, float outer, int usub, int vsub);

93 void mgl_torus_part(float inner, float outer, int usub, int vsub, float umax, float vmin, float vmax);

94

95 #endif /* MINGL_H_ */