1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/devtools/jint/sunspider/3d-cube.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,369 @@
1.4 +// 3D Cube Rotation
1.5 +// http://www.speich.net/computer/moztesting/3d.htm
1.6 +// Created by Simon Speich
1.7 +
1.8 +var Q = new Array();
1.9 +var MTrans = new Array(); // transformation matrix
1.10 +var MQube = new Array(); // position information of qube
1.11 +var I = new Array(); // entity matrix
1.12 +var Origin = new Object();
1.13 +var Testing = new Object();
1.14 +var LoopTimer;
1.15 +
1.16 +var DisplArea = new Object();
1.17 +DisplArea.Width = 300;
1.18 +DisplArea.Height = 300;
1.19 +
1.20 +function DrawLine(From, To) {
1.21 + var x1 = From.V[0];
1.22 + var x2 = To.V[0];
1.23 + var y1 = From.V[1];
1.24 + var y2 = To.V[1];
1.25 + var dx = Math.abs(x2 - x1);
1.26 + var dy = Math.abs(y2 - y1);
1.27 + var x = x1;
1.28 + var y = y1;
1.29 + var IncX1, IncY1;
1.30 + var IncX2, IncY2;
1.31 + var Den;
1.32 + var Num;
1.33 + var NumAdd;
1.34 + var NumPix;
1.35 +
1.36 + if (x2 >= x1) { IncX1 = 1; IncX2 = 1; }
1.37 + else { IncX1 = -1; IncX2 = -1; }
1.38 + if (y2 >= y1) { IncY1 = 1; IncY2 = 1; }
1.39 + else { IncY1 = -1; IncY2 = -1; }
1.40 + if (dx >= dy) {
1.41 + IncX1 = 0;
1.42 + IncY2 = 0;
1.43 + Den = dx;
1.44 + Num = dx / 2;
1.45 + NumAdd = dy;
1.46 + NumPix = dx;
1.47 + }
1.48 + else {
1.49 + IncX2 = 0;
1.50 + IncY1 = 0;
1.51 + Den = dy;
1.52 + Num = dy / 2;
1.53 + NumAdd = dx;
1.54 + NumPix = dy;
1.55 + }
1.56 +
1.57 + NumPix = Math.round(Q.LastPx + NumPix);
1.58 +
1.59 + var i = Q.LastPx;
1.60 +/* BEGIN LOOP */
1.61 + for (; i < NumPix; i++) {
1.62 + Num += NumAdd;
1.63 + if (Num >= Den) {
1.64 + Num -= Den;
1.65 + x += IncX1;
1.66 + y += IncY1;
1.67 + }
1.68 + x += IncX2;
1.69 + y += IncY2;
1.70 + }
1.71 +/* END LOOP */
1.72 + Q.LastPx = NumPix;
1.73 +}
1.74 +
1.75 +function CalcCross(V0, V1) {
1.76 + var Cross = new Array();
1.77 + Cross[0] = V0[1]*V1[2] - V0[2]*V1[1];
1.78 + Cross[1] = V0[2]*V1[0] - V0[0]*V1[2];
1.79 + Cross[2] = V0[0]*V1[1] - V0[1]*V1[0];
1.80 + return Cross;
1.81 +}
1.82 +
1.83 +function CalcNormal(V0, V1, V2) {
1.84 + var A = new Array(); var B = new Array();
1.85 +/* BEGIN LOOP */
1.86 + for (var i = 0; i < 3; i++) {
1.87 + A[i] = V0[i] - V1[i];
1.88 + B[i] = V2[i] - V1[i];
1.89 + }
1.90 +/* END LOOP */
1.91 + A = CalcCross(A, B);
1.92 + var Length = Math.sqrt(A[0]*A[0] + A[1]*A[1] + A[2]*A[2]);
1.93 +/* BEGIN LOOP */
1.94 + for (var i = 0; i < 3; i++) A[i] = A[i] / Length;
1.95 +/* END LOOP */
1.96 + A[3] = 1;
1.97 + return A;
1.98 +}
1.99 +
1.100 +function CreateP(X,Y,Z) {
1.101 + this.V = [X,Y,Z,1];
1.102 +}
1.103 +
1.104 +// multiplies two matrices
1.105 +function MMulti(M1, M2) {
1.106 + var M = [[],[],[],[]];
1.107 + var i = 0;
1.108 + var j = 0;
1.109 +/* BEGIN LOOP */
1.110 + for (; i < 4; i++) {
1.111 + j = 0;
1.112 +/* BEGIN LOOP */
1.113 + 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];
1.114 +/* END LOOP */
1.115 + }
1.116 +/* END LOOP */
1.117 + return M;
1.118 +}
1.119 +
1.120 +//multiplies matrix with vector
1.121 +function VMulti(M, V) {
1.122 + var Vect = new Array();
1.123 + var i = 0;
1.124 +/* BEGIN LOOP */
1.125 + 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];
1.126 +/* END LOOP */
1.127 + return Vect;
1.128 +}
1.129 +
1.130 +function VMulti2(M, V) {
1.131 + var Vect = new Array();
1.132 + var i = 0;
1.133 +/* BEGIN LOOP */
1.134 + for (;i < 3; i++) Vect[i] = M[i][0] * V[0] + M[i][1] * V[1] + M[i][2] * V[2];
1.135 +/* END LOOP */
1.136 + return Vect;
1.137 +}
1.138 +
1.139 +// add to matrices
1.140 +function MAdd(M1, M2) {
1.141 + var M = [[],[],[],[]];
1.142 + var i = 0;
1.143 + var j = 0;
1.144 +/* BEGIN LOOP */
1.145 + for (; i < 4; i++) {
1.146 + j = 0;
1.147 +/* BEGIN LOOP */
1.148 + for (; j < 4; j++) M[i][j] = M1[i][j] + M2[i][j];
1.149 +/* END LOOP */
1.150 + }
1.151 +/* END LOOP */
1.152 + return M;
1.153 +}
1.154 +
1.155 +function Translate(M, Dx, Dy, Dz) {
1.156 + var T = [
1.157 + [1,0,0,Dx],
1.158 + [0,1,0,Dy],
1.159 + [0,0,1,Dz],
1.160 + [0,0,0,1]
1.161 + ];
1.162 + return MMulti(T, M);
1.163 +}
1.164 +
1.165 +function RotateX(M, Phi) {
1.166 + var a = Phi;
1.167 + a *= Math.PI / 180;
1.168 + var Cos = Math.cos(a);
1.169 + var Sin = Math.sin(a);
1.170 + var R = [
1.171 + [1,0,0,0],
1.172 + [0,Cos,-Sin,0],
1.173 + [0,Sin,Cos,0],
1.174 + [0,0,0,1]
1.175 + ];
1.176 + return MMulti(R, M);
1.177 +}
1.178 +
1.179 +function RotateY(M, Phi) {
1.180 + var a = Phi;
1.181 + a *= Math.PI / 180;
1.182 + var Cos = Math.cos(a);
1.183 + var Sin = Math.sin(a);
1.184 + var R = [
1.185 + [Cos,0,Sin,0],
1.186 + [0,1,0,0],
1.187 + [-Sin,0,Cos,0],
1.188 + [0,0,0,1]
1.189 + ];
1.190 + return MMulti(R, M);
1.191 +}
1.192 +
1.193 +function RotateZ(M, Phi) {
1.194 + var a = Phi;
1.195 + a *= Math.PI / 180;
1.196 + var Cos = Math.cos(a);
1.197 + var Sin = Math.sin(a);
1.198 + var R = [
1.199 + [Cos,-Sin,0,0],
1.200 + [Sin,Cos,0,0],
1.201 + [0,0,1,0],
1.202 + [0,0,0,1]
1.203 + ];
1.204 + return MMulti(R, M);
1.205 +}
1.206 +
1.207 +function DrawQube() {
1.208 + // calc current normals
1.209 + var CurN = new Array();
1.210 + var i = 5;
1.211 + Q.LastPx = 0;
1.212 +/* BEGIN LOOP */
1.213 + for (; i > -1; i--) CurN[i] = VMulti2(MQube, Q.Normal[i]);
1.214 +/* END LOOP */
1.215 + if (CurN[0][2] < 0) {
1.216 + if (!Q.Line[0]) { DrawLine(Q[0], Q[1]); Q.Line[0] = true; };
1.217 + if (!Q.Line[1]) { DrawLine(Q[1], Q[2]); Q.Line[1] = true; };
1.218 + if (!Q.Line[2]) { DrawLine(Q[2], Q[3]); Q.Line[2] = true; };
1.219 + if (!Q.Line[3]) { DrawLine(Q[3], Q[0]); Q.Line[3] = true; };
1.220 + }
1.221 + if (CurN[1][2] < 0) {
1.222 + if (!Q.Line[2]) { DrawLine(Q[3], Q[2]); Q.Line[2] = true; };
1.223 + if (!Q.Line[9]) { DrawLine(Q[2], Q[6]); Q.Line[9] = true; };
1.224 + if (!Q.Line[6]) { DrawLine(Q[6], Q[7]); Q.Line[6] = true; };
1.225 + if (!Q.Line[10]) { DrawLine(Q[7], Q[3]); Q.Line[10] = true; };
1.226 + }
1.227 + if (CurN[2][2] < 0) {
1.228 + if (!Q.Line[4]) { DrawLine(Q[4], Q[5]); Q.Line[4] = true; };
1.229 + if (!Q.Line[5]) { DrawLine(Q[5], Q[6]); Q.Line[5] = true; };
1.230 + if (!Q.Line[6]) { DrawLine(Q[6], Q[7]); Q.Line[6] = true; };
1.231 + if (!Q.Line[7]) { DrawLine(Q[7], Q[4]); Q.Line[7] = true; };
1.232 + }
1.233 + if (CurN[3][2] < 0) {
1.234 + if (!Q.Line[4]) { DrawLine(Q[4], Q[5]); Q.Line[4] = true; };
1.235 + if (!Q.Line[8]) { DrawLine(Q[5], Q[1]); Q.Line[8] = true; };
1.236 + if (!Q.Line[0]) { DrawLine(Q[1], Q[0]); Q.Line[0] = true; };
1.237 + if (!Q.Line[11]) { DrawLine(Q[0], Q[4]); Q.Line[11] = true; };
1.238 + }
1.239 + if (CurN[4][2] < 0) {
1.240 + if (!Q.Line[11]) { DrawLine(Q[4], Q[0]); Q.Line[11] = true; };
1.241 + if (!Q.Line[3]) { DrawLine(Q[0], Q[3]); Q.Line[3] = true; };
1.242 + if (!Q.Line[10]) { DrawLine(Q[3], Q[7]); Q.Line[10] = true; };
1.243 + if (!Q.Line[7]) { DrawLine(Q[7], Q[4]); Q.Line[7] = true; };
1.244 + }
1.245 + if (CurN[5][2] < 0) {
1.246 + if (!Q.Line[8]) { DrawLine(Q[1], Q[5]); Q.Line[8] = true; };
1.247 + if (!Q.Line[5]) { DrawLine(Q[5], Q[6]); Q.Line[5] = true; };
1.248 + if (!Q.Line[9]) { DrawLine(Q[6], Q[2]); Q.Line[9] = true; };
1.249 + if (!Q.Line[1]) { DrawLine(Q[2], Q[1]); Q.Line[1] = true; };
1.250 + }
1.251 + Q.Line = [false,false,false,false,false,false,false,false,false,false,false,false];
1.252 + Q.LastPx = 0;
1.253 +}
1.254 +
1.255 +function Loop() {
1.256 + if (Testing.LoopCount > Testing.LoopMax) return;
1.257 + var TestingStr = String(Testing.LoopCount);
1.258 +/* BEGIN LOOP */
1.259 + while (TestingStr.length < 3) TestingStr = "0" + TestingStr;
1.260 +/* END LOOP */
1.261 + MTrans = Translate(I, -Q[8].V[0], -Q[8].V[1], -Q[8].V[2]);
1.262 + MTrans = RotateX(MTrans, 1);
1.263 + MTrans = RotateY(MTrans, 3);
1.264 + MTrans = RotateZ(MTrans, 5);
1.265 + MTrans = Translate(MTrans, Q[8].V[0], Q[8].V[1], Q[8].V[2]);
1.266 + MQube = MMulti(MTrans, MQube);
1.267 + var i = 8;
1.268 +/* BEGIN LOOP */
1.269 + for (; i > -1; i--) {
1.270 + Q[i].V = VMulti(MTrans, Q[i].V);
1.271 + }
1.272 +/* END LOOP */
1.273 + DrawQube();
1.274 + Testing.LoopCount++;
1.275 + Loop();
1.276 +}
1.277 +
1.278 +function Init(CubeSize) {
1.279 + // init/reset vars
1.280 + Origin.V = [150,150,20,1];
1.281 + Testing.LoopCount = 0;
1.282 + Testing.LoopMax = 50;
1.283 + Testing.TimeMax = 0;
1.284 + Testing.TimeAvg = 0;
1.285 + Testing.TimeMin = 0;
1.286 + Testing.TimeTemp = 0;
1.287 + Testing.TimeTotal = 0;
1.288 + Testing.Init = false;
1.289 +
1.290 + // transformation matrix
1.291 + MTrans = [
1.292 + [1,0,0,0],
1.293 + [0,1,0,0],
1.294 + [0,0,1,0],
1.295 + [0,0,0,1]
1.296 + ];
1.297 +
1.298 + // position information of qube
1.299 + MQube = [
1.300 + [1,0,0,0],
1.301 + [0,1,0,0],
1.302 + [0,0,1,0],
1.303 + [0,0,0,1]
1.304 + ];
1.305 +
1.306 + // entity matrix
1.307 + I = [
1.308 + [1,0,0,0],
1.309 + [0,1,0,0],
1.310 + [0,0,1,0],
1.311 + [0,0,0,1]
1.312 + ];
1.313 +
1.314 + // create qube
1.315 + Q[0] = new CreateP(-CubeSize,-CubeSize, CubeSize);
1.316 + Q[1] = new CreateP(-CubeSize, CubeSize, CubeSize);
1.317 + Q[2] = new CreateP( CubeSize, CubeSize, CubeSize);
1.318 + Q[3] = new CreateP( CubeSize,-CubeSize, CubeSize);
1.319 + Q[4] = new CreateP(-CubeSize,-CubeSize,-CubeSize);
1.320 + Q[5] = new CreateP(-CubeSize, CubeSize,-CubeSize);
1.321 + Q[6] = new CreateP( CubeSize, CubeSize,-CubeSize);
1.322 + Q[7] = new CreateP( CubeSize,-CubeSize,-CubeSize);
1.323 +
1.324 + // center of gravity
1.325 + Q[8] = new CreateP(0, 0, 0);
1.326 +
1.327 + // anti-clockwise edge check
1.328 + Q.Edge = [[0,1,2],[3,2,6],[7,6,5],[4,5,1],[4,0,3],[1,5,6]];
1.329 +
1.330 + // calculate squad normals
1.331 + Q.Normal = new Array();
1.332 +/* BEGIN LOOP */
1.333 + 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);
1.334 +/* END LOOP */
1.335 +
1.336 + // line drawn ?
1.337 + Q.Line = [false,false,false,false,false,false,false,false,false,false,false,false];
1.338 +
1.339 + // create line pixels
1.340 + Q.NumPx = 9 * 2 * CubeSize;
1.341 +/* BEGIN LOOP */
1.342 + for (var i = 0; i < Q.NumPx; i++) CreateP(0,0,0);
1.343 +/* END LOOP */
1.344 +
1.345 + MTrans = Translate(MTrans, Origin.V[0], Origin.V[1], Origin.V[2]);
1.346 + MQube = MMulti(MTrans, MQube);
1.347 +
1.348 + var i = 0;
1.349 +/* BEGIN LOOP */
1.350 + for (; i < 9; i++) {
1.351 + Q[i].V = VMulti(MTrans, Q[i].V);
1.352 + }
1.353 +/* END LOOP */
1.354 + DrawQube();
1.355 + Testing.Init = true;
1.356 + Loop();
1.357 +}
1.358 +
1.359 +/* BEGIN LOOP */
1.360 +for ( var i = 20; i <= 160; i *= 2 ) {
1.361 + Init(i);
1.362 +}
1.363 +/* END LOOP */
1.364 +
1.365 +Q = null;
1.366 +MTrans = null;
1.367 +MQube = null;
1.368 +I = null;
1.369 +Origin = null;
1.370 +Testing = null;
1.371 +LoopTime = null;
1.372 +DisplArea = null;
