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nuclear@15
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1 #ifndef VMATH_H_
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nuclear@15
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2 #define VMATH_H_
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nuclear@15
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3
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nuclear@21
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4 #include <math.h>
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nuclear@26
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5 #include "fixedp.h"
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nuclear@21
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6
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nuclear@21
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7 #ifndef M_PI
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nuclear@21
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8 #define M_PI 3.1415926536
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nuclear@21
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9 #endif
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nuclear@21
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10
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nuclear@15
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11 typedef struct {
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nuclear@15
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12 float x, y, z, w;
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nuclear@15
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13 } vec4_t;
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nuclear@15
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14
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nuclear@15
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15 typedef struct {
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nuclear@15
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16 float x, y, z;
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nuclear@15
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17 } vec3_t;
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nuclear@15
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18
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nuclear@15
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19 typedef struct {
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nuclear@15
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20 float x, y;
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nuclear@15
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21 } vec2_t;
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nuclear@15
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22
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nuclear@25
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23 typedef struct {
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nuclear@25
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24 fixed x, y, z, w;
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nuclear@25
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25 } vec4x_t;
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nuclear@25
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26
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nuclear@25
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27 typedef struct {
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nuclear@25
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28 fixed x, y, z;
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nuclear@25
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29 } vec3x_t;
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nuclear@25
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30
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nuclear@25
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31 typedef struct {
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nuclear@25
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32 fixed x, y;
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nuclear@25
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33 } vec2x_t;
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nuclear@25
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34
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nuclear@28
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35 typedef struct {
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nuclear@28
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36 vec3_t origin, dir;
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nuclear@28
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37 } ray3_t;
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nuclear@28
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38
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nuclear@28
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39 #define vec3_dot(a, b) ((a).x * (b).x + (a).y * (b).y + (a).z * (b).z)
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nuclear@28
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40
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nuclear@28
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41 #define vec2_lerp(res, a, b, t) \
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nuclear@28
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42 do { \
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nuclear@28
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43 (res).x = (a).x + ((b).x - (a).x) * (t); \
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nuclear@28
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44 (res).y = (a).y + ((b).y - (a).y) * (t); \
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nuclear@28
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45 } while(0)
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nuclear@28
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46
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nuclear@28
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47 #define vec3_lerp(res, a, b, t) \
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nuclear@28
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48 do { \
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nuclear@28
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49 (res).x = (a).x + ((b).x - (a).x) * (t); \
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nuclear@28
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50 (res).y = (a).y + ((b).y - (a).y) * (t); \
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nuclear@28
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51 (res).z = (a).z + ((b).z - (a).z) * (t); \
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nuclear@28
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52 } while(0)
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nuclear@28
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53
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nuclear@28
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54 #define ray3_point(res, ray, t) \
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nuclear@28
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55 do { \
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nuclear@28
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56 (res).x = (ray).origin.x + (ray).dir.x * (t); \
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nuclear@28
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57 (res).y = (ray).origin.y + (ray).dir.y * (t); \
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nuclear@28
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58 (res).z = (ray).origin.z + (ray).dir.z * (t); \
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nuclear@28
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59 } while(0)
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nuclear@25
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60
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nuclear@25
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61 #define vec2_to_fixed2(v, f) \
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nuclear@25
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62 do { \
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nuclear@28
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63 (f).x = fixedf((v).x); \
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nuclear@28
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64 (f).y = fixedf((v).y); \
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nuclear@25
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65 } while(0)
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nuclear@25
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66
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nuclear@25
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67 #define vec3_to_fixed3(v, f) \
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nuclear@25
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68 do { \
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nuclear@28
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69 (f).x = fixedf((v).x); \
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nuclear@28
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70 (f).y = fixedf((v).y); \
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nuclear@28
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71 (f).z = fixedf((v).z); \
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nuclear@25
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72 } while(0)
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nuclear@25
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73
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nuclear@25
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74 #define vec4_to_fixed4(v, f) \
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nuclear@25
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75 do { \
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nuclear@28
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76 (f).x = fixedf((v).x); \
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nuclear@28
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77 (f).y = fixedf((v).y); \
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nuclear@28
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78 (f).z = fixedf((v).z); \
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nuclear@28
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79 (f).w = fixedf((v).w); \
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nuclear@25
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80 } while(0)
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nuclear@25
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81
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nuclear@25
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82
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nuclear@25
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83 #define fixed2_to_vec2(f, v) \
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nuclear@25
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84 do { \
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nuclear@28
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85 (v).x = fixed_float((f).x); \
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nuclear@28
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86 (v).y = fixed_float((f).y); \
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nuclear@25
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87 } while(0)
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nuclear@25
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88
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nuclear@25
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89 #define fixed3_to_vec3(f, v) \
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nuclear@25
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90 do { \
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nuclear@28
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91 (v).x = fixed_float((f).x); \
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nuclear@28
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92 (v).y = fixed_float((f).y); \
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nuclear@28
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93 (v).z = fixed_float((f).z); \
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nuclear@25
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94 } while(0)
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nuclear@25
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95
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nuclear@25
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96 #define fixed4_to_vec4(f, v) \
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nuclear@25
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97 do { \
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nuclear@28
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98 (v).x = fixed_float((f).x); \
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nuclear@28
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99 (v).y = fixed_float((f).y); \
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nuclear@28
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100 (v).z = fixed_float((f).z); \
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nuclear@28
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101 (v).w = fixed_float((f).w); \
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nuclear@25
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102 } while(0)
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nuclear@25
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103
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nuclear@15
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104
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nuclear@15
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105 #endif /* VMATH_H_ */
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