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comparison: js/src/jit-test/tests/sunspider/check-3d-cube.js

js/src/jit-test/tests/sunspider/check-3d-cube.js

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1 // 3D Cube Rotation
2 // http://www.speich.net/computer/moztesting/3d.htm
3 // Created by Simon Speich
4
5 var Q = new Array();
6 var MTrans = new Array(); // transformation matrix
7 var MQube = new Array(); // position information of qube
8 var I = new Array(); // entity matrix
9 var Origin = new Object();
10 var Testing = new Object();
11 var LoopTimer;
12
13 var DisplArea = new Object();
14 DisplArea.Width = 300;
15 DisplArea.Height = 300;
16
17 function DrawLine(From, To) {
18 var x1 = From.V[0];
19 var x2 = To.V[0];
20 var y1 = From.V[1];
21 var y2 = To.V[1];
22 var dx = Math.abs(x2 - x1);
23 var dy = Math.abs(y2 - y1);
24 var x = x1;
25 var y = y1;
26 var IncX1, IncY1;
27 var IncX2, IncY2;
28 var Den;
29 var Num;
30 var NumAdd;
31 var NumPix;
32
33 if (x2 >= x1) { IncX1 = 1; IncX2 = 1; }
34 else { IncX1 = -1; IncX2 = -1; }
35 if (y2 >= y1) { IncY1 = 1; IncY2 = 1; }
36 else { IncY1 = -1; IncY2 = -1; }
37 if (dx >= dy) {
38 IncX1 = 0;
39 IncY2 = 0;
40 Den = dx;
41 Num = dx / 2;
42 NumAdd = dy;
43 NumPix = dx;
44 }
45 else {
46 IncX2 = 0;
47 IncY1 = 0;
48 Den = dy;
49 Num = dy / 2;
50 NumAdd = dx;
51 NumPix = dy;
52 }
53
54 NumPix = Math.round(Q.LastPx + NumPix);
55
56 var i = Q.LastPx;
57 for (; i < NumPix; i++) {
58 Num += NumAdd;
59 if (Num >= Den) {
60 Num -= Den;
61 x += IncX1;
62 y += IncY1;
63 }
64 x += IncX2;
65 y += IncY2;
66 }
67 Q.LastPx = NumPix;
68 }
69
70 function CalcCross(V0, V1) {
71 var Cross = new Array();
72 Cross[0] = V0[1]*V1[2] - V0[2]*V1[1];
73 Cross[1] = V0[2]*V1[0] - V0[0]*V1[2];
74 Cross[2] = V0[0]*V1[1] - V0[1]*V1[0];
75 return Cross;
76 }
77
78 function CalcNormal(V0, V1, V2) {
79 var A = new Array(); var B = new Array();
80 for (var i = 0; i < 3; i++) {
81 A[i] = V0[i] - V1[i];
82 B[i] = V2[i] - V1[i];
83 }
84 A = CalcCross(A, B);
85 var Length = Math.sqrt(A[0]*A[0] + A[1]*A[1] + A[2]*A[2]);
86 for (var i = 0; i < 3; i++) A[i] = A[i] / Length;
87 A[3] = 1;
88 return A;
89 }
90
91 function CreateP(X,Y,Z) {
92 this.V = [X,Y,Z,1];
93 }
94
95 // multiplies two matrices
96 function MMulti(M1, M2) {
97 var M = [[],[],[],[]];
98 var i = 0;
99 var j = 0;
100 for (; i < 4; i++) {
101 j = 0;
102 for (; j < 4; j++) M[i][j] = M1[i][0] * M2[0][j] + M1[i][1] * M2[1][j] + M1[i][2] * M2[2][j] + M1[i][3] * M2[3][j];
103 }
104 return M;
105 }
106
107 //multiplies matrix with vector
108 function VMulti(M, V) {
109 var Vect = new Array();
110 var i = 0;
111 for (;i < 4; i++) Vect[i] = M[i][0] * V[0] + M[i][1] * V[1] + M[i][2] * V[2] + M[i][3] * V[3];
112 return Vect;
113 }
114
115 function VMulti2(M, V) {
116 var Vect = new Array();
117 var i = 0;
118 for (;i < 3; i++) Vect[i] = M[i][0] * V[0] + M[i][1] * V[1] + M[i][2] * V[2];
119 return Vect;
120 }
121
122 // add to matrices
123 function MAdd(M1, M2) {
124 var M = [[],[],[],[]];
125 var i = 0;
126 var j = 0;
127 for (; i < 4; i++) {
128 j = 0;
129 for (; j < 4; j++) M[i][j] = M1[i][j] + M2[i][j];
130 }
131 return M;
132 }
133
134 function Translate(M, Dx, Dy, Dz) {
135 var T = [
136 [1,0,0,Dx],
137 [0,1,0,Dy],
138 [0,0,1,Dz],
139 [0,0,0,1]
140 ];
141 return MMulti(T, M);
142 }
143
144 function RotateX(M, Phi) {
145 var a = Phi;
146 a *= Math.PI / 180;
147 var Cos = Math.cos(a);
148 var Sin = Math.sin(a);
149 var R = [
150 [1,0,0,0],
151 [0,Cos,-Sin,0],
152 [0,Sin,Cos,0],
153 [0,0,0,1]
154 ];
155 return MMulti(R, M);
156 }
157
158 function RotateY(M, Phi) {
159 var a = Phi;
160 a *= Math.PI / 180;
161 var Cos = Math.cos(a);
162 var Sin = Math.sin(a);
163 var R = [
164 [Cos,0,Sin,0],
165 [0,1,0,0],
166 [-Sin,0,Cos,0],
167 [0,0,0,1]
168 ];
169 return MMulti(R, M);
170 }
171
172 function RotateZ(M, Phi) {
173 var a = Phi;
174 a *= Math.PI / 180;
175 var Cos = Math.cos(a);
176 var Sin = Math.sin(a);
177 var R = [
178 [Cos,-Sin,0,0],
179 [Sin,Cos,0,0],
180 [0,0,1,0],
181 [0,0,0,1]
182 ];
183 return MMulti(R, M);
184 }
185
186 function DrawQube() {
187 // calc current normals
188 var CurN = new Array();
189 var i = 5;
190 Q.LastPx = 0;
191 for (; i > -1; i--) CurN[i] = VMulti2(MQube, Q.Normal[i]);
192 if (CurN[0][2] < 0) {
193 if (!Q.Line[0]) { DrawLine(Q[0], Q[1]); Q.Line[0] = true; };
194 if (!Q.Line[1]) { DrawLine(Q[1], Q[2]); Q.Line[1] = true; };
195 if (!Q.Line[2]) { DrawLine(Q[2], Q[3]); Q.Line[2] = true; };
196 if (!Q.Line[3]) { DrawLine(Q[3], Q[0]); Q.Line[3] = true; };
197 }
198 if (CurN[1][2] < 0) {
199 if (!Q.Line[2]) { DrawLine(Q[3], Q[2]); Q.Line[2] = true; };
200 if (!Q.Line[9]) { DrawLine(Q[2], Q[6]); Q.Line[9] = true; };
201 if (!Q.Line[6]) { DrawLine(Q[6], Q[7]); Q.Line[6] = true; };
202 if (!Q.Line[10]) { DrawLine(Q[7], Q[3]); Q.Line[10] = true; };
203 }
204 if (CurN[2][2] < 0) {
205 if (!Q.Line[4]) { DrawLine(Q[4], Q[5]); Q.Line[4] = true; };
206 if (!Q.Line[5]) { DrawLine(Q[5], Q[6]); Q.Line[5] = true; };
207 if (!Q.Line[6]) { DrawLine(Q[6], Q[7]); Q.Line[6] = true; };
208 if (!Q.Line[7]) { DrawLine(Q[7], Q[4]); Q.Line[7] = true; };
209 }
210 if (CurN[3][2] < 0) {
211 if (!Q.Line[4]) { DrawLine(Q[4], Q[5]); Q.Line[4] = true; };
212 if (!Q.Line[8]) { DrawLine(Q[5], Q[1]); Q.Line[8] = true; };
213 if (!Q.Line[0]) { DrawLine(Q[1], Q[0]); Q.Line[0] = true; };
214 if (!Q.Line[11]) { DrawLine(Q[0], Q[4]); Q.Line[11] = true; };
215 }
216 if (CurN[4][2] < 0) {
217 if (!Q.Line[11]) { DrawLine(Q[4], Q[0]); Q.Line[11] = true; };
218 if (!Q.Line[3]) { DrawLine(Q[0], Q[3]); Q.Line[3] = true; };
219 if (!Q.Line[10]) { DrawLine(Q[3], Q[7]); Q.Line[10] = true; };
220 if (!Q.Line[7]) { DrawLine(Q[7], Q[4]); Q.Line[7] = true; };
221 }
222 if (CurN[5][2] < 0) {
223 if (!Q.Line[8]) { DrawLine(Q[1], Q[5]); Q.Line[8] = true; };
224 if (!Q.Line[5]) { DrawLine(Q[5], Q[6]); Q.Line[5] = true; };
225 if (!Q.Line[9]) { DrawLine(Q[6], Q[2]); Q.Line[9] = true; };
226 if (!Q.Line[1]) { DrawLine(Q[2], Q[1]); Q.Line[1] = true; };
227 }
228 Q.Line = [false,false,false,false,false,false,false,false,false,false,false,false];
229 Q.LastPx = 0;
230 }
231
232 function Loop() {
233 if (Testing.LoopCount > Testing.LoopMax) return;
234 var TestingStr = String(Testing.LoopCount);
235 while (TestingStr.length < 3) TestingStr = "0" + TestingStr;
236 MTrans = Translate(I, -Q[8].V[0], -Q[8].V[1], -Q[8].V[2]);
237 MTrans = RotateX(MTrans, 1);
238 MTrans = RotateY(MTrans, 3);
239 MTrans = RotateZ(MTrans, 5);
240 MTrans = Translate(MTrans, Q[8].V[0], Q[8].V[1], Q[8].V[2]);
241 MQube = MMulti(MTrans, MQube);
242 var i = 8;
243 for (; i > -1; i--) {
244 Q[i].V = VMulti(MTrans, Q[i].V);
245 }
246 DrawQube();
247 Testing.LoopCount++;
248 Loop();
249 }
250
251 function Init(CubeSize) {
252 // init/reset vars
253 Origin.V = [150,150,20,1];
254 Testing.LoopCount = 0;
255 Testing.LoopMax = 50;
256 Testing.TimeMax = 0;
257 Testing.TimeAvg = 0;
258 Testing.TimeMin = 0;
259 Testing.TimeTemp = 0;
260 Testing.TimeTotal = 0;
261 Testing.Init = false;
262
263 // transformation matrix
264 MTrans = [
265 [1,0,0,0],
266 [0,1,0,0],
267 [0,0,1,0],
268 [0,0,0,1]
269 ];
270
271 // position information of qube
272 MQube = [
273 [1,0,0,0],
274 [0,1,0,0],
275 [0,0,1,0],
276 [0,0,0,1]
277 ];
278
279 // entity matrix
280 I = [
281 [1,0,0,0],
282 [0,1,0,0],
283 [0,0,1,0],
284 [0,0,0,1]
285 ];
286
287 // create qube
288 Q[0] = new CreateP(-CubeSize,-CubeSize, CubeSize);
289 Q[1] = new CreateP(-CubeSize, CubeSize, CubeSize);
290 Q[2] = new CreateP( CubeSize, CubeSize, CubeSize);
291 Q[3] = new CreateP( CubeSize,-CubeSize, CubeSize);
292 Q[4] = new CreateP(-CubeSize,-CubeSize,-CubeSize);
293 Q[5] = new CreateP(-CubeSize, CubeSize,-CubeSize);
294 Q[6] = new CreateP( CubeSize, CubeSize,-CubeSize);
295 Q[7] = new CreateP( CubeSize,-CubeSize,-CubeSize);
296
297 // center of gravity
298 Q[8] = new CreateP(0, 0, 0);
299
300 // anti-clockwise edge check
301 Q.Edge = [[0,1,2],[3,2,6],[7,6,5],[4,5,1],[4,0,3],[1,5,6]];
302
303 // calculate squad normals
304 Q.Normal = new Array();
305 for (var i = 0; i < Q.Edge.length; i++) Q.Normal[i] = CalcNormal(Q[Q.Edge[i][0]].V, Q[Q.Edge[i][1]].V, Q[Q.Edge[i][2]].V);
306
307 // line drawn ?
308 Q.Line = [false,false,false,false,false,false,false,false,false,false,false,false];
309
310 // create line pixels
311 Q.NumPx = 9 * 2 * CubeSize;
312 for (var i = 0; i < Q.NumPx; i++) CreateP(0,0,0);
313
314 MTrans = Translate(MTrans, Origin.V[0], Origin.V[1], Origin.V[2]);
315 MQube = MMulti(MTrans, MQube);
316
317 var i = 0;
318 for (; i < 9; i++) {
319 Q[i].V = VMulti(MTrans, Q[i].V);
320 }
321 DrawQube();
322 Testing.Init = true;
323 Loop();
324 }
325
326 for ( var i = 20; i <= 160; i *= 2 ) {
327 Init(i);
328 }
329
330 var actual = '';
331 for (var i = 0; i < Q.length; ++i) {
332 actual += Q[i].V + ';';
333 }
334 var expected = "-116.618229186398,212.51135212951073,62.5094191967962,1;127.83701023614447,417.11611179082263,90.41153816299942,1;293.9570894432935,196.58093046570656,252.17789153139591,1;49.501850020750915,-8.02382919560505,224.275772565193,1;6.042910556709444,103.41906953429206,-212.1778915313964,1;250.49814997925202,308.02382919560387,-184.27577256519325,1;416.61822918640064,87.48864787048812,-22.509419196796493,1;172.1629897638581,-117.1161117908236,-50.41153816299975,1;150.0000000000007,149.99999999999952,20,1;";
335 assertEq(actual, expected);
336
337 Q = null;
338 MTrans = null;
339 MQube = null;
340 I = null;
341 Origin = null;
342 Testing = null;
343 LoopTime = null;
344 DisplArea = null;
345

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