annotate TaskManager/Test/test_render/sys.cpp @ 236:c7abab87697a

fix
author gongo@localhost.localdomain
date Sun, 29 Mar 2009 22:03:16 +0900
parents 29e338dbc280
children
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1 #include <stdlib.h>
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2 #include <iostream>
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3 #include <string.h>
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4 #include <math.h>
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5 #include "sys.h"
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6 using namespace std;
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7
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8 void noMoreMemory()
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9 {
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10 cout << "can't allocate memory\n";
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11 exit(1);
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12 }
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13
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14 void
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15 transMatrix(float *m0, float *m1, float *v)
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16 {
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17 memcpy(m0, m1, sizeof(float)*16);
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18
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19 m0[12] = m1[12] + v[0];
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20 m0[13] = m1[13] + v[1];
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21 m0[14] = m1[14] + v[2];
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22 m0[15] = m1[15] + v[3];
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23 }
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24
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25 void
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26 unitMatrix(float *m)
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27 {
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28 bzero(m, sizeof(float)*16);
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29
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30 m[0] = 1.0f;
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31 m[5] = 1.0f;
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32 m[10] = 1.0f;
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33 m[15] = 1.0f;
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34 }
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35
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36 void
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37 inversMatrix(float *m0, float *m1)
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38 {
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39 float m[16];
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40
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41 for (int i = 0; i < 4; i++) {
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42 for (int j = 0; j < 4; j++) {
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43 m[i*4+j] = m1[j*4+i];
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44 }
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45 }
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47 m[12] = -(m1[12]*m[0] + m1[13]*m[1] + m1[14]*m[2]);
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48 m[13] = -(m1[12]*m[4] + m1[13]*m[5] + m1[14]*m[6]);
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49 m[14] = -(m1[12]*m[8] + m1[13]*m[9] + m1[14]*m[10]);
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50 m[3] = m[7] = m[11] = 0.0f;
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51 m[15] = 1.0f;
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52
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53 memcpy(m0, m, sizeof(float)*16);
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54 }
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55
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56 /**
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57 * マトリックス m にベクトル v1 を右から乗算して、v0に与える
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58 * @param[out] v0 output vector (float[4])
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59 * @param[in] v1 input vector (float[4])
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60 * @param[in] m matrix (float[16])
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61 */
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62 void
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63 applyMatrix(float *v0, float *m, float *v1)
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64 {
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65 for (int i = 0; i < 4; i++) {
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66 v0[i] = v1[0]*m[i] + v1[1]*m[i+4] + v1[2]*m[i+8] + v1[3]*m[i+12];
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67 }
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68 }
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69
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70 /**
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71 * ベクトルの正規化
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72 *
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73 * @param[out] v0 output vector
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74 * @param[in] v1 input vector
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75 */
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76 void
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77 normalize(float *v0, float *v1)
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78 {
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79 float norm, dnorm;
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80
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81 norm = sqrt(v1[0]*v1[0] + v1[1]*v1[1] + v1[2]*v1[2]);
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82 if (norm > 0) {
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83 dnorm = 1.0/norm;
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84 v0[0] = v1[0]*dnorm;
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85 v0[1] = v1[1]*dnorm;
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86 v0[2] = v1[2]*dnorm;
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87 v0[3] = v1[3]*dnorm;
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88 }
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89 }
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90
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91 /**
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92 * ベクトルの減算 v0 = v1 - v2
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93 */
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94 void
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95 subVector(float *v0, float *v1, float *v2)
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96 {
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97 v0[0] = v1[0] - v2[0];
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98 v0[1] = v1[1] - v2[1];
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99 v0[2] = v1[2] - v2[2];
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100 v0[3] = v1[3] - v2[3];
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101 }
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102
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103 /**
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104 * ベクトルの外積 v0 = v1 x v2
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105 */
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106 void
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107 outerProduct(float *v0, float *v1, float *v2)
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108 {
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109 v0[0] = v1[1] * v2[2] - v1[2] * v2[1];
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110 v0[1] = v1[2] * v2[0] - v1[0] * v2[2];
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111 v0[2] = v1[0] * v2[1] - v1[1] * v2[0];
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112 v0[3] = 0;
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113 }
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114
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115 void
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116 transposeMatrix(float *m0, float *m1)
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117 {
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118 float t[16];
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119
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120 for (int i = 0; i < 4; i++) {
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121 for (int j = 0; j < 4; j++) {
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122 t[i*4+j] = m1[j*4+i];
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123 }
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124 }
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125
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126 memcpy(m0, t, sizeof(float)*16);
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127 }
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128
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129 /**
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130 * ベクトルの内積 f = v0 * v1
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131 */
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132 float
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133 innerProduct(float *v0, float *v1)
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134 {
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135 return (v0[0]*v1[0] + v0[1]*v1[1] + v0[2]*v1[2]);
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136 }
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137
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138 void matrix4x4(float *xyz, float *xyz1, float *xyz2) //xyz[16]
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139 {
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140 for(int t=0; t<16; t+=4)
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141 {
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142 for(int i=0; i<4; i++)
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143 {
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144 xyz[t+i] = xyz1[t]*xyz2[i] + xyz1[t+1]*xyz2[4+i] + xyz1[t+2]*xyz2[8+i] + xyz1[t+3]*xyz2[12+i];
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145 }
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146 }
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147 }
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148
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149 void get_matrix( float *matrix, float *rxyz, float *txyz, float *stack)
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150 {
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151 float radx,rady,radz;
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152 radx = rxyz[0]*3.14/180;
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153 rady = rxyz[1]*3.14/180;
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154 radz = rxyz[2]*3.14/180;
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155
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156 float sinx = sin(radx);
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157 float cosx = cos(radx);
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158 float siny = sin(rady);
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159 float cosy = cos(rady);
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160 float sinz = sin(radz);
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161 float cosz = cos(radz);
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162
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163 /* View Transform */
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164 matrix[0] = cosz*cosy+sinz*sinx*siny;
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165 matrix[1] = sinz*cosx;
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166 matrix[2] = -cosz*siny+sinz*sinx*cosy;
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167 matrix[3] = 0;
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168 matrix[4] = -sinz*cosy+cosz*sinx*siny;
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169 matrix[5] = cosz*cosx;
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170 matrix[6] = sinz*siny+cosz*sinx*cosy;
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171 matrix[7] = 0;
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172 matrix[8] = cosx*siny;
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173 matrix[9] = -sinx;
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174 matrix[10] = cosx*cosy;
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175 matrix[11] = 0;
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176 matrix[12] = txyz[0];
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177 matrix[13] = txyz[1];
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178 matrix[14] = txyz[2];
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179 matrix[15] = 1;
206
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180
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181 float m[16];
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182
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183 for(int i=0; i<16; i++)
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184 {
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185 m[i] = matrix[i];
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186 }
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187
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188 if(stack)
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189 {
176
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190 matrix4x4(matrix, m, stack);
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191 }
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192
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193 }
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194
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195 void rotate_x(float *xyz, float r)
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196 {
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197 float rad = r*3.14/180;
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198
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199 xyz[0] = xyz[0];
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200 xyz[1] = xyz[1]*cos(rad) - xyz[2]*sin(rad);
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201 xyz[2] = xyz[1]*sin(rad) + xyz[2]*cos(rad);
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202 }
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203
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204 void rotate_y(float *xyz, float r)
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205 {
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206 float rad = r*3.14/180;
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207
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208 xyz[0] = xyz[0]*cos(rad) + xyz[2]*sin(rad);
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209 xyz[1] = xyz[1];
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210 xyz[2] = -xyz[0]*sin(rad) + xyz[2]*cos(rad);
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211 }
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212
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213 void rotate_z(float *xyz, float r)
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214 {
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215 float rad = r*3.14/180;
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216
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217 xyz[0] = xyz[0]*cos(rad) - xyz[1]*sin(rad);
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218 xyz[1] = xyz[0]*sin(rad) + xyz[1]*cos(rad);
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219 xyz[2] = xyz[2];
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220 }
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221
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222 void rotate(float *xyz, float *matrix)
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223 {
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224 float abc[4];
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225 abc[0] = xyz[0];
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226 abc[1] = xyz[1];
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227 abc[2] = xyz[2];
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228 abc[3] = xyz[3];
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229
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230 for(int i=0; i<4; i++)
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231 {
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232 //xyz[i] = abc[0]*rot[i] + abc[1]*rot[i+4] + abc[2]*rot[i+8] + abc[3]*rot[i+12];
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233 xyz[i] = abc[0]*matrix[i] + abc[1]*matrix[i+4] + abc[2]*matrix[i+8] + abc[3]*matrix[i+12];
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234 }
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235 }
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236
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237
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238 void translate(float *xyz, float x, float y, float z)
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239 {
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240 xyz[0] += x;
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241 xyz[1] += y;
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242 xyz[2] += z;
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243 }