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 #define MGL_TEXTURE_2D 16

27

28 /* primitives */

29 #define MGL_POINTS 1

30 #define MGL_LINES 2

31 #define MGL_TRIANGLES 3

32 #define MGL_QUADS 4

33

34 /* matrices */

35 #define MGL_MODELVIEW 0

36 #define MGL_PROJECTION 1

37 #define MGL_TEXTURE 2

38

39 #define MGL_FRONT 0

40 #define MGL_BACK 1

41

42 #define MGL_CCW 0

43 #define MGL_CW 1

44

45 int mgl_init(int width, int height);

46 void mgl_free(void);

47

48 unsigned char *mgl_framebuffer(void);

49

50 void mgl_clear(int cidx);

51

52 void mgl_enable(unsigned int bit);

53 void mgl_disable(unsigned int bit);

54 int mgl_isenabled(unsigned int bit);

55

56 void mgl_front_face(int ff);

57 void mgl_cull_face(int cf);

58

59 void mgl_color_range(int rng);

60 void mgl_light_intensity(int ltidx, float intens);

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

62

63 void mgl_begin(int prim);

64 void mgl_end(void);

65

66 void mgl_vertex2f(float x, float y);

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

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

69 void mgl_color1f(float energy);

70 void mgl_index(int cidx);

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

72 void mgl_texcoord2f(float x, float y);

73

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

75

76 void mgl_matrix_mode(int mmode);

77 void mgl_push_matrix(void);

78 void mgl_pop_matrix(void);

79 void mgl_load_matrix(float *mat);

80 void mgl_mult_matrix(float *mat);

81 void mgl_load_identity(void);

82

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

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

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

86

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

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

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

90

91 void mgl_teximage(int width, int height, unsigned char *pixels);

92

93 void mgl_cube(float sz);

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

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

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

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

98

99 #endif /* MINGL_H_ */