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1789 | yogev_ezra | 1 | /* |
2 | Пример взят из набора примеров библиотеки Mesa |
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3 | |||
4 | iadn |
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5 | http://www.iadn.narod.ru |
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6 | iadn@bk.ru |
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7 | */ |
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8 | |||
9 | /* |
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10 | * 3-D gear wheels. This program is in the public domain. |
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11 | * |
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12 | * Brian Paul |
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13 | */ |
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14 | |||
15 | #include |
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16 | #include |
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17 | #include |
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18 | #include |
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19 | |||
20 | #include "SysCall.h" |
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21 | #include "ProcessTab.h" |
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22 | |||
23 | int Fps (long x, long y); |
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24 | extern "C"{ |
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5098 | clevermous | 25 | int main(void); |
1789 | yogev_ezra | 26 | } |
27 | |||
28 | struct { |
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29 | int x,y; |
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30 | int dx,dy; |
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31 | } win; |
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32 | |||
33 | #define KEY_ESC 1 |
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34 | #define KEY_F 33 |
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35 | |||
36 | char *title1 = "TinyGL in KolibriOS"; |
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37 | char *title2 = "F full screen"; |
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38 | char *title3 = "ESC - exit"; |
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39 | char *fps = "FPS:"; |
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40 | |||
41 | unsigned char FullScreen = 0; |
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42 | unsigned char skin = 3; |
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43 | |||
44 | process_table_entry_* pri; |
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45 | KOSGLContext cgl; |
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46 | |||
47 | static GLfloat view_rotx=20.0, view_roty=30.0, view_rotz=0.0; |
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48 | static GLint gear1, gear2, gear3; |
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49 | static GLfloat angle = 0.0; |
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50 | |||
51 | static GLuint limit; |
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52 | static GLuint count = 1; |
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53 | |||
54 | /* |
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55 | * Draw a gear wheel. You'll probably want to call this function when |
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56 | * building a display list since we do a lot of trig here. |
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57 | * |
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58 | * Input: inner_radius - radius of hole at center |
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59 | * outer_radius - radius at center of teeth |
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60 | * width - width of gear |
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61 | * teeth - number of teeth |
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62 | * tooth_depth - depth of tooth |
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63 | */ |
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64 | static void gear( GLfloat inner_radius, GLfloat outer_radius, GLfloat width, |
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65 | GLint teeth, GLfloat tooth_depth ) |
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66 | { |
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67 | GLint i; |
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68 | GLfloat r0, r1, r2; |
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69 | GLfloat angle, da; |
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70 | GLfloat u, v, len; |
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71 | |||
72 | r0 = inner_radius; |
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73 | r1 = outer_radius - tooth_depth/2.0; |
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74 | r2 = outer_radius + tooth_depth/2.0; |
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75 | |||
76 | da = 2.0*M_PI / teeth / 4.0; |
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77 | |||
78 | glShadeModel( GL_FLAT ); |
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79 | |||
80 | glNormal3f( 0.0, 0.0, 1.0 ); |
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81 | |||
82 | /* draw front face */ |
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83 | glBegin( GL_QUAD_STRIP ); |
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84 | for (i=0;i<=teeth;i++) { |
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85 | angle = i * 2.0*M_PI / teeth; |
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86 | glVertex3f( r0*cos(angle), r0*sin(angle), width*0.5 ); |
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87 | glVertex3f( r1*cos(angle), r1*sin(angle), width*0.5 ); |
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88 | glVertex3f( r0*cos(angle), r0*sin(angle), width*0.5 ); |
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89 | glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), width*0.5 ); |
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90 | } |
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91 | glEnd(); |
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92 | |||
93 | /* draw front sides of teeth */ |
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94 | glBegin( GL_QUADS ); |
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95 | da = 2.0*M_PI / teeth / 4.0; |
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96 | for (i=0;i |
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97 | angle = i * 2.0*M_PI / teeth; |
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98 | |||
99 | glVertex3f( r1*cos(angle), r1*sin(angle), width*0.5 ); |
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100 | glVertex3f( r2*cos(angle+da), r2*sin(angle+da), width*0.5 ); |
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101 | glVertex3f( r2*cos(angle+2*da), r2*sin(angle+2*da), width*0.5 ); |
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102 | glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), width*0.5 ); |
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103 | } |
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104 | glEnd(); |
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105 | |||
106 | glNormal3f( 0.0, 0.0, -1.0 ); |
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107 | |||
108 | /* draw back face */ |
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109 | glBegin( GL_QUAD_STRIP ); |
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110 | for (i=0;i<=teeth;i++) { |
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111 | angle = i * 2.0*M_PI / teeth; |
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112 | glVertex3f( r1*cos(angle), r1*sin(angle), -width*0.5 ); |
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113 | glVertex3f( r0*cos(angle), r0*sin(angle), -width*0.5 ); |
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114 | glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), -width*0.5 ); |
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115 | glVertex3f( r0*cos(angle), r0*sin(angle), -width*0.5 ); |
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116 | } |
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117 | glEnd(); |
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118 | |||
119 | /* draw back sides of teeth */ |
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120 | glBegin( GL_QUADS ); |
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121 | da = 2.0*M_PI / teeth / 4.0; |
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122 | for (i=0;i |
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123 | angle = i * 2.0*M_PI / teeth; |
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124 | |||
125 | glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), -width*0.5 ); |
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126 | glVertex3f( r2*cos(angle+2*da), r2*sin(angle+2*da), -width*0.5 ); |
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127 | glVertex3f( r2*cos(angle+da), r2*sin(angle+da), -width*0.5 ); |
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128 | glVertex3f( r1*cos(angle), r1*sin(angle), -width*0.5 ); |
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129 | } |
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130 | glEnd(); |
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131 | |||
132 | /* draw outward faces of teeth */ |
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133 | glBegin( GL_QUAD_STRIP ); |
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134 | for (i=0;i |
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135 | angle = i * 2.0*M_PI / teeth; |
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136 | |||
137 | glVertex3f( r1*cos(angle), r1*sin(angle), width*0.5 ); |
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138 | glVertex3f( r1*cos(angle), r1*sin(angle), -width*0.5 ); |
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139 | u = r2*cos(angle+da) - r1*cos(angle); |
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140 | v = r2*sin(angle+da) - r1*sin(angle); |
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141 | len = sqrt( u*u + v*v ); |
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142 | u /= len; |
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143 | v /= len; |
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144 | glNormal3f( v, -u, 0.0 ); |
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145 | glVertex3f( r2*cos(angle+da), r2*sin(angle+da), width*0.5 ); |
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146 | glVertex3f( r2*cos(angle+da), r2*sin(angle+da), -width*0.5 ); |
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147 | glNormal3f( cos(angle), sin(angle), 0.0 ); |
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148 | glVertex3f( r2*cos(angle+2*da), r2*sin(angle+2*da), width*0.5 ); |
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149 | glVertex3f( r2*cos(angle+2*da), r2*sin(angle+2*da), -width*0.5 ); |
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150 | u = r1*cos(angle+3*da) - r2*cos(angle+2*da); |
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151 | v = r1*sin(angle+3*da) - r2*sin(angle+2*da); |
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152 | glNormal3f( v, -u, 0.0 ); |
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153 | glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), width*0.5 ); |
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154 | glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), -width*0.5 ); |
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155 | glNormal3f( cos(angle), sin(angle), 0.0 ); |
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156 | } |
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157 | |||
158 | glVertex3f( r1*cos(0.0), r1*sin(0.0), width*0.5 ); |
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159 | glVertex3f( r1*cos(0.0), r1*sin(0.0), -width*0.5 ); |
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160 | |||
161 | glEnd(); |
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162 | |||
163 | glShadeModel( GL_SMOOTH ); |
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164 | |||
165 | /* draw inside radius cylinder */ |
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166 | glBegin( GL_QUAD_STRIP ); |
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167 | for (i=0;i<=teeth;i++) { |
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168 | angle = i * 2.0*M_PI / teeth; |
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169 | glNormal3f( -cos(angle), -sin(angle), 0.0 ); |
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170 | glVertex3f( r0*cos(angle), r0*sin(angle), -width*0.5 ); |
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171 | glVertex3f( r0*cos(angle), r0*sin(angle), width*0.5 ); |
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172 | } |
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173 | glEnd(); |
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174 | } |
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175 | |||
176 | void init( void ) |
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177 | { |
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178 | static GLfloat pos[4] = {5.0, 5.0, 10.0, 1.0 }; |
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179 | static GLfloat red[4] = {0.8, 0.1, 0.0, 1.0 }; |
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180 | static GLfloat green[4] = {0.0, 0.8, 0.2, 1.0 }; |
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181 | static GLfloat blue[4] = {0.2, 0.2, 1.0, 1.0 }; |
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182 | |||
183 | glLightfv( GL_LIGHT0, GL_POSITION, pos ); |
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184 | glEnable( GL_CULL_FACE ); |
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185 | glEnable( GL_LIGHTING ); |
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186 | glEnable( GL_LIGHT0 ); |
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187 | glEnable( GL_DEPTH_TEST ); |
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188 | |||
189 | /* make the gears */ |
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190 | gear1 = glGenLists(1); |
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191 | glNewList(gear1, GL_COMPILE); |
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192 | glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red ); |
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193 | gear( 1.0, 4.0, 1.0, 20, 0.7 ); |
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194 | glEndList(); |
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195 | |||
196 | gear2 = glGenLists(1); |
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197 | glNewList(gear2, GL_COMPILE); |
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198 | glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green ); |
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199 | gear( 0.5, 2.0, 2.0, 10, 0.7 ); |
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200 | glEndList(); |
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201 | |||
202 | gear3 = glGenLists(1); |
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203 | glNewList(gear3, GL_COMPILE); |
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204 | glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue ); |
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205 | gear( 1.3, 2.0, 0.5, 10, 0.7 ); |
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206 | glEndList(); |
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207 | |||
208 | glEnable( GL_NORMALIZE ); |
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209 | |||
210 | glViewport(0, 0, (GLint)500, (GLint)480); |
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211 | glMatrixMode(GL_PROJECTION); |
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212 | glLoadIdentity(); |
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213 | glFrustum( -1.0, 1.0, -1, 1, 5.0, 60.0 ); |
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214 | glMatrixMode(GL_MODELVIEW); |
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215 | glLoadIdentity(); |
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216 | glTranslatef( 0.0, 0.0, -40.0 ); |
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217 | glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); |
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218 | } |
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219 | |||
220 | void reshape() |
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221 | { |
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222 | __menuet__get_process_table((process_table_entry*)pri,-1); |
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223 | glViewport(0, 0, pri->winx_size, pri->winy_size-20); |
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224 | glMatrixMode(GL_PROJECTION); |
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225 | glLoadIdentity(); |
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226 | gluPerspective(45.0, (GLfloat)pri->winx_size/pri->winy_size, 1.0, 60.0); |
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227 | glTranslatef( 0.0, 0.0, 20.0 ); |
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228 | glMatrixMode(GL_MODELVIEW); |
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229 | glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); |
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230 | } |
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231 | |||
232 | void disabletgl() |
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233 | { |
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234 | kosglDestroyContext(cgl); |
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235 | delete pri; |
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236 | } |
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237 | |||
238 | void Title() |
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239 | { |
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240 | __menuet__write_text(300,8,0x10ffffff,fps,strlen(fps)); |
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241 | __menuet__write_text(8,8,0x10ffffff,title1,strlen(title1)); |
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242 | __menuet__write_text(180,8,0x00ffffff,title2,strlen(title2)); |
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243 | __menuet__write_text(600,8,0x00ffffff,title3,strlen(title3)); |
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244 | } |
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245 | |||
246 | void draw_window(void) |
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247 | { |
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248 | // start redraw |
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249 | __menuet__window_redraw(1); |
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250 | // define&draw window |
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251 | __menuet__define_window(win.x,win.y,win.dx,win.dy,TYPEWIN(0,0,0,1,skin,0,0,0),0,0); |
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252 | // end redraw |
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253 | __menuet__window_redraw(2); |
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254 | // display string |
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255 | Title(); |
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256 | } |
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257 | |||
5098 | clevermous | 258 | int main(void) |
1789 | yogev_ezra | 259 | { |
260 | |||
261 | win.x = 100; |
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262 | win.y = 100; |
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263 | win.dx = 400; |
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264 | win.dy = 400; |
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265 | |||
266 | draw_window(); |
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267 | |||
268 | cgl = kosglCreateContext( 0, 0); |
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269 | kosglMakeCurrent( 0, 20, win.dx, win.dy-20, cgl); |
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270 | |||
271 | init(); |
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272 | |||
273 | pri=new process_table_entry_; |
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274 | SysCall(66,1,1); |
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275 | |||
276 | reshape(); |
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277 | |||
278 | do{ |
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279 | |||
280 | glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); |
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281 | |||
282 | glPushMatrix(); |
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283 | glRotatef( view_rotx, 1.0, 0.0, 0.0 ); |
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284 | glRotatef( view_roty, 0.0, 1.0, 0.0 ); |
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285 | glRotatef( view_rotz, 0.0, 0.0, 1.0 ); |
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286 | |||
287 | glPushMatrix(); |
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288 | glTranslatef( -2.0, -2.0, 0.0 ); |
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289 | glRotatef( angle, 0.0, 0.0, 1.0 ); |
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290 | glCallList(gear1); |
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291 | glPopMatrix(); |
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292 | |||
293 | glPushMatrix(); |
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294 | glTranslatef( 4.1, -2.0, 0.0 ); |
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295 | glRotatef( -2.0*angle-9.0, 0.0, 0.0, 1.0 ); |
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296 | glCallList(gear2); |
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297 | glPopMatrix(); |
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298 | |||
299 | glPushMatrix(); |
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300 | glTranslatef( -2.1, 4.2, 0.0 ); |
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301 | glRotatef( -2.0*angle-25.0, 0.0, 0.0, 1.0 ); |
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302 | glCallList(gear3); |
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303 | glPopMatrix(); |
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304 | |||
305 | glPopMatrix(); |
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306 | |||
307 | kosglSwapBuffers(); |
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308 | |||
309 | angle += 0.01 + 0.3* Fps (330,8); |
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310 | |||
311 | switch(SysCall(11)) |
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312 | { |
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313 | case 1: draw_window(); |
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314 | reshape(); |
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315 | break; |
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316 | |||
317 | case 2: |
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318 | switch(__menuet__getkey()){ |
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319 | |||
320 | case KEY_F: |
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321 | if(!FullScreen){ |
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322 | skin=0; |
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323 | SysCall(67,0,0,SysCall(14)>>16,SysCall(14)&0xffff); |
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324 | draw_window(); |
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325 | reshape(); |
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326 | FullScreen = 1; |
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327 | } |
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328 | else{ |
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329 | skin=3; |
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330 | draw_window(); |
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331 | SysCall(67,win.x,win.y,win.dx,win.dy); |
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332 | reshape(); |
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333 | FullScreen = 0; |
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334 | }; |
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335 | break; |
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336 | |||
337 | case KEY_ESC: disabletgl(); |
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5098 | clevermous | 338 | return 0;} |
1789 | yogev_ezra | 339 | break; |
340 | |||
341 | case 3: disabletgl(); |
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5098 | clevermous | 342 | return 0; |
1789 | yogev_ezra | 343 | } |
344 | }while(1); |
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345 | }=teeth;i++)>=teeth;i++)>=teeth;i++)> |