examples/gles/assets/basemap.png examples/gles/assets/lightmap.png examples/gles/ch10-multitexture.js examples/gles/common.js examples/gles/shaders/ch10-fshader.sl examples/gles/shaders/ch10-vshader.sl examples/gles/shaders/m3d-fshader.sl examples/gles/shaders/m3d-vshader.sl examples/gles/shaderutil.js imageloader.cpp imageloader.h utils.cpp utils.h @@ -5,7 +5,7 @@ CC = g++ CFLAGS := $(CFLAGS) -m32 -Wall -Iv8/include PROG = v8-gl -SRCS = main.cpp v8-gl.cpp glbindings/glbind.cpp glesbindings/glesbind.cpp glubindings/glubind.cpp glutbindings/glutbind.cpp +SRCS = main.cpp imageloader.cpp utils.cpp v8-gl.cpp glbindings/glbind.cpp glesbindings/glesbind.cpp glubindings/glubind.cpp glutbindings/glutbind.cpp all: $(PROG) Makefile @@ -1,468 +1,5 @@ -//adding matrix 4x4 library -/* - * Copyright (c) 2009, Mozilla Corp - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the <organization> nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY <copyright holder> ''AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -/* - * Based on sample code from the OpenGL(R) ES 2.0 Programming Guide, which carriers - * the following header: - * - * Book: OpenGL(R) ES 2.0 Programming Guide - * Authors: Aaftab Munshi, Dan Ginsburg, Dave Shreiner - * ISBN-10: 0321502795 - * ISBN-13: 9780321502797 - * Publisher: Addison-Wesley Professional - * URLs: http://safari.informit.com/9780321563835 - * http://www.opengles-book.com - */ - -// -// A simple 4x4 Matrix utility class -// - -function Matrix4x4() { - this.elements = Array(16); - this.loadIdentity(); -} - -Matrix4x4.prototype = { - scale: function (sx, sy, sz) { - this.elements[0*4+0] *= sx; - this.elements[0*4+1] *= sx; - this.elements[0*4+2] *= sx; - this.elements[0*4+3] *= sx; - - this.elements[1*4+0] *= sy; - this.elements[1*4+1] *= sy; - this.elements[1*4+2] *= sy; - this.elements[1*4+3] *= sy; - - this.elements[2*4+0] *= sz; - this.elements[2*4+1] *= sz; - this.elements[2*4+2] *= sz; - this.elements[2*4+3] *= sz; - - return this; - }, - - translate: function (tx, ty, tz) { - this.elements[3*4+0] += this.elements[0*4+0] * tx + this.elements[1*4+0] * ty + this.elements[2*4+0] * tz; - this.elements[3*4+1] += this.elements[0*4+1] * tx + this.elements[1*4+1] * ty + this.elements[2*4+1] * tz; - this.elements[3*4+2] += this.elements[0*4+2] * tx + this.elements[1*4+2] * ty + this.elements[2*4+2] * tz; - this.elements[3*4+3] += this.elements[0*4+3] * tx + this.elements[1*4+3] * ty + this.elements[2*4+3] * tz; - - return this; - }, - - rotate: function (angle, x, y, z) { - var mag = Math.sqrt(x*x + y*y + z*z); - var sinAngle = Math.sin(angle * Math.PI / 180.0); - var cosAngle = Math.cos(angle * Math.PI / 180.0); - - if (mag > 0) { - var xx, yy, zz, xy, yz, zx, xs, ys, zs; - var oneMinusCos; - var rotMat; - - x /= mag; - y /= mag; - z /= mag; - - xx = x * x; - yy = y * y; - zz = z * z; - xy = x * y; - yz = y * z; - zx = z * x; - xs = x * sinAngle; - ys = y * sinAngle; - zs = z * sinAngle; - oneMinusCos = 1.0 - cosAngle; - - rotMat = new Matrix4x4(); - - rotMat.elements[0*4+0] = (oneMinusCos * xx) + cosAngle; - rotMat.elements[0*4+1] = (oneMinusCos * xy) - zs; - rotMat.elements[0*4+2] = (oneMinusCos * zx) + ys; - rotMat.elements[0*4+3] = 0.0; - - rotMat.elements[1*4+0] = (oneMinusCos * xy) + zs; - rotMat.elements[1*4+1] = (oneMinusCos * yy) + cosAngle; - rotMat.elements[1*4+2] = (oneMinusCos * yz) - xs; - rotMat.elements[1*4+3] = 0.0; - - rotMat.elements[2*4+0] = (oneMinusCos * zx) - ys; - rotMat.elements[2*4+1] = (oneMinusCos * yz) + xs; - rotMat.elements[2*4+2] = (oneMinusCos * zz) + cosAngle; - rotMat.elements[2*4+3] = 0.0; - - rotMat.elements[3*4+0] = 0.0; - rotMat.elements[3*4+1] = 0.0; - rotMat.elements[3*4+2] = 0.0; - rotMat.elements[3*4+3] = 1.0; - - rotMat = rotMat.multiply(this); - this.elements = rotMat.elements; - } - - return this; - }, - - frustum: function (left, right, bottom, top, nearZ, farZ) { - var deltaX = right - left; - var deltaY = top - bottom; - var deltaZ = farZ - nearZ; - var frust; - - if ( (nearZ <= 0.0) || (farZ <= 0.0) || - (deltaX <= 0.0) || (deltaY <= 0.0) || (deltaZ <= 0.0) ) - return this; - - frust = new Matrix4x4(); - - frust.elements[0*4+0] = 2.0 * nearZ / deltaX; - frust.elements[0*4+1] = frust.elements[0*4+2] = frust.elements[0*4+3] = 0.0; - - frust.elements[1*4+1] = 2.0 * nearZ / deltaY; - frust.elements[1*4+0] = frust.elements[1*4+2] = frust.elements[1*4+3] = 0.0; - - frust.elements[2*4+0] = (right + left) / deltaX; - frust.elements[2*4+1] = (top + bottom) / deltaY; - frust.elements[2*4+2] = -(nearZ + farZ) / deltaZ; - frust.elements[2*4+3] = -1.0; - - frust.elements[3*4+2] = -2.0 * nearZ * farZ / deltaZ; - frust.elements[3*4+0] = frust.elements[3*4+1] = frust.elements[3*4+3] = 0.0; - - frust = frust.multiply(this); - this.elements = frust.elements; - - return this; - }, - - perspective: function (fovy, aspect, nearZ, farZ) { - var frustumH = Math.tan(fovy / 360.0 * Math.PI) * nearZ; - var frustumW = frustumH * aspect; - - return this.frustum(-frustumW, frustumW, -frustumH, frustumH, nearZ, farZ); - }, - - ortho: function (left, right, bottom, top, nearZ, farZ) { - var deltaX = right - left; - var deltaY = top - bottom; - var deltaZ = farZ - nearZ; - - var ortho = new Matrix4x4(); - - if ( (deltaX == 0.0) || (deltaY == 0.0) || (deltaZ == 0.0) ) - return this; - - ortho.elements[0*4+0] = 2.0 / deltaX; - ortho.elements[3*4+0] = -(right + left) / deltaX; - ortho.elements[1*4+1] = 2.0 / deltaY; - ortho.elements[3*4+1] = -(top + bottom) / deltaY; - ortho.elements[2*4+2] = -2.0 / deltaZ; - ortho.elements[3*4+2] = -(nearZ + farZ) / deltaZ; - - ortho = ortho.multiply(this); - this.elements = ortho.elements; - - return this; - }, - - multiply: function (right) { - var tmp = new Matrix4x4(); - - for (var i = 0; i < 4; i++) { - tmp.elements[i*4+0] = - (this.elements[i*4+0] * right.elements[0*4+0]) + - (this.elements[i*4+1] * right.elements[1*4+0]) + - (this.elements[i*4+2] * right.elements[2*4+0]) + - (this.elements[i*4+3] * right.elements[3*4+0]) ; - - tmp.elements[i*4+1] = - (this.elements[i*4+0] * right.elements[0*4+1]) + - (this.elements[i*4+1] * right.elements[1*4+1]) + - (this.elements[i*4+2] * right.elements[2*4+1]) + - (this.elements[i*4+3] * right.elements[3*4+1]) ; - - tmp.elements[i*4+2] = - (this.elements[i*4+0] * right.elements[0*4+2]) + - (this.elements[i*4+1] * right.elements[1*4+2]) + - (this.elements[i*4+2] * right.elements[2*4+2]) + - (this.elements[i*4+3] * right.elements[3*4+2]) ; - - tmp.elements[i*4+3] = - (this.elements[i*4+0] * right.elements[0*4+3]) + - (this.elements[i*4+1] * right.elements[1*4+3]) + - (this.elements[i*4+2] * right.elements[2*4+3]) + - (this.elements[i*4+3] * right.elements[3*4+3]) ; - } - - this.elements = tmp.elements; - return this; - }, - - loadIdentity: function () { - for (var i = 0; i < 16; i++) - this.elements[i] = 0; - this.elements[0*4+0] = 1.0; - this.elements[1*4+1] = 1.0; - this.elements[2*4+2] = 1.0; - this.elements[3*4+3] = 1.0; - return this; - } -}; - -//adding a simple shape library -/* - * Copyright (c) 2009, Mozilla Corp - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the <organization> nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY <copyright holder> ''AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -/* - * Based on sample code from the OpenGL(R) ES 2.0 Programming Guide, which carriers - * the following header: - * - * Book: OpenGL(R) ES 2.0 Programming Guide - * Authors: Aaftab Munshi, Dan Ginsburg, Dave Shreiner - * ISBN-10: 0321502795 - * ISBN-13: 9780321502797 - * Publisher: Addison-Wesley Professional - * URLs: http://safari.informit.com/9780321563835 - * http://www.opengles-book.com - */ - -// -// port of esShapes.c -// - -function shallowCloneArray(ar) { - var o = Array(ar.length); - for (var i = 0; i < ar.length; i++) { - o[i] = ar[i]; - } - return o; -} - -function shallowCloneArrayScaled(ar, scale) { - var o = Array(ar.length); - for (var i = 0; i < ar.length; i++) { - o[i] = ar[i] * scale; - } - return o; -} - -// make these accessible directly in the glboal scope, -// in case someone wants to use them without copying -var esCubeVertices = [ - -0.5, -0.5, -0.5, - -0.5, -0.5, 0.5, - 0.5, -0.5, 0.5, - 0.5, -0.5, -0.5, - -0.5, 0.5, -0.5, - -0.5, 0.5, 0.5, - 0.5, 0.5, 0.5, - 0.5, 0.5, -0.5, - -0.5, -0.5, -0.5, - -0.5, 0.5, -0.5, - 0.5, 0.5, -0.5, - 0.5, -0.5, -0.5, - -0.5, -0.5, 0.5, - -0.5, 0.5, 0.5, - 0.5, 0.5, 0.5, - 0.5, -0.5, 0.5, - -0.5, -0.5, -0.5, - -0.5, -0.5, 0.5, - -0.5, 0.5, 0.5, - -0.5, 0.5, -0.5, - 0.5, -0.5, -0.5, - 0.5, -0.5, 0.5, - 0.5, 0.5, 0.5, - 0.5, 0.5, -0.5 -]; - -var esCubeNormals = [ - 0.0, -1.0, 0.0, - 0.0, -1.0, 0.0, - 0.0, -1.0, 0.0, - 0.0, -1.0, 0.0, - 0.0, 1.0, 0.0, - 0.0, 1.0, 0.0, - 0.0, 1.0, 0.0, - 0.0, 1.0, 0.0, - 0.0, 0.0, -1.0, - 0.0, 0.0, -1.0, - 0.0, 0.0, -1.0, - 0.0, 0.0, -1.0, - 0.0, 0.0, 1.0, - 0.0, 0.0, 1.0, - 0.0, 0.0, 1.0, - 0.0, 0.0, 1.0, - -1.0, 0.0, 0.0, - -1.0, 0.0, 0.0, - -1.0, 0.0, 0.0, - -1.0, 0.0, 0.0, - 1.0, 0.0, 0.0, - 1.0, 0.0, 0.0, - 1.0, 0.0, 0.0, - 1.0, 0.0, 0.0 -]; - -var esCubeTexCoords = [ - 0.0, 0.0, - 0.0, 1.0, - 1.0, 1.0, - 1.0, 0.0, - 1.0, 0.0, - 1.0, 1.0, - 0.0, 1.0, - 0.0, 0.0, - 0.0, 0.0, - 0.0, 1.0, - 1.0, 1.0, - 1.0, 0.0, - 0.0, 0.0, - 0.0, 1.0, - 1.0, 1.0, - 1.0, 0.0, - 0.0, 0.0, - 0.0, 1.0, - 1.0, 1.0, - 1.0, 0.0, - 0.0, 0.0, - 0.0, 1.0, - 1.0, 1.0, - 1.0, 0.0 -]; - -var esCubeIndices = [ - 0, 2, 1, - 0, 3, 2, - 4, 5, 6, - 4, 6, 7, - 8, 9, 10, - 8, 10, 11, - 12, 15, 14, - 12, 14, 13, - 16, 17, 18, - 16, 18, 19, - 20, 23, 22, - 20, 22, 21 -]; - -// will return an object that has vertices, normals, texCoords, and indices members -function esGenCube (scale) { - return { - vertices: shallowCloneArrayScaled(esCubeVertices, scale), - texCoords: shallowCloneArray(esCubeTexCoords), - indices: shallowCloneArray(esCubeIndices), - normals: shallowCloneArray(esCubeNormals) - }; -} - -// -// generates coordinate information for a sphere -// - -function esGenSphere (numSlices, radius) { - var i, j; - var numParallels = numSlices; - var numVertices = (numParallels + 1) * (numSlices + 1); - var numIndices = numParallels * numSlices * 6; - var angleStep = (2 * Math.PI) / numSlices; - - var vertices = Array(3*numVertices); - var normals = Array(3*numVertices); - var texCoords = Array(2*numVertices); - var indices = Array(numIndices); - - for (i = 0; i < numParallels+1; i++) { - for (j = 0; j < numSlices+1; j++) { - var vertex = (i * (numSlices+1) + j) * 3; - - vertices[vertex+0] = radius * Math.sin(angleStep * i) * Math.sin(angleStep * j); - vertices[vertex+1] = radius * Math.cos(angleStep * i); - vertices[vertex+2] = radius * Math.sin(angleStep * i) * Math.cos(angleStep * j); - - normals[vertex+0] = vertices[vertex+0] / radius; - normals[vertex+1] = vertices[vertex+1] / radius; - normals[vertex+2] = vertices[vertex+2] / radius; - - var texIndex = (i * (numSlices+1) + j) * 2; - - texCoords[texIndex+0] = j / numSlices; - texCoords[texIndex+1] = (1 - i) / (numParallels - 1); - } - } - - var k = 0; - for (i = 0; i < numParallels; i++) { - for (j = 0; j < numSlices; j++) { - indices[k++] = i * (numSlices + 1) + j; - indices[k++] = (i + 1) * (numSlices + 1) + j; - indices[k++] = (i + 1) * (numSlices + 1) + (j + 1); - - indices[k++] = i * (numSlices + 1) + j; - indices[k++] = (i + 1) * (numSlices + 1) + (j + 1); - indices[k++] = i * (numSlices + 1) + (j + 1); - } - } - - return { - vertices: vertices, - normals: normals, - texCoords: texCoords, - indices: indices - }; -} -//end library code. - +//load common code. +load("common.js"); //start custom code. var angle = 0; examples/gles/ch8-simple-vertexshader.js @@ -1,561 +1,5 @@ -//adding matrix 4x4 library -/* - * Copyright (c) 2009, Mozilla Corp - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the <organization> nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY <copyright holder> ''AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -/* - * Based on sample code from the OpenGL(R) ES 2.0 Programming Guide, which carriers - * the following header: - * - * Book: OpenGL(R) ES 2.0 Programming Guide - * Authors: Aaftab Munshi, Dan Ginsburg, Dave Shreiner - * ISBN-10: 0321502795 - * ISBN-13: 9780321502797 - * Publisher: Addison-Wesley Professional - * URLs: http://safari.informit.com/9780321563835 - * http://www.opengles-book.com - */ - -// -// A simple 4x4 Matrix utility class -// - -function Matrix4x4() { - this.elements = Array(16); - this.loadIdentity(); -} - -Matrix4x4.prototype = { - scale: function (sx, sy, sz) { - this.elements[0*4+0] *= sx; - this.elements[0*4+1] *= sx; - this.elements[0*4+2] *= sx; - this.elements[0*4+3] *= sx; - - this.elements[1*4+0] *= sy; - this.elements[1*4+1] *= sy; - this.elements[1*4+2] *= sy; - this.elements[1*4+3] *= sy; - - this.elements[2*4+0] *= sz; - this.elements[2*4+1] *= sz; - this.elements[2*4+2] *= sz; - this.elements[2*4+3] *= sz; - - return this; - }, - - translate: function (tx, ty, tz) { - this.elements[3*4+0] += this.elements[0*4+0] * tx + this.elements[1*4+0] * ty + this.elements[2*4+0] * tz; - this.elements[3*4+1] += this.elements[0*4+1] * tx + this.elements[1*4+1] * ty + this.elements[2*4+1] * tz; - this.elements[3*4+2] += this.elements[0*4+2] * tx + this.elements[1*4+2] * ty + this.elements[2*4+2] * tz; - this.elements[3*4+3] += this.elements[0*4+3] * tx + this.elements[1*4+3] * ty + this.elements[2*4+3] * tz; - - return this; - }, - - rotate: function (angle, x, y, z) { - var mag = Math.sqrt(x*x + y*y + z*z); - var sinAngle = Math.sin(angle * Math.PI / 180.0); - var cosAngle = Math.cos(angle * Math.PI / 180.0); - - if (mag > 0) { - var xx, yy, zz, xy, yz, zx, xs, ys, zs; - var oneMinusCos; - var rotMat; - - x /= mag; - y /= mag; - z /= mag; - - xx = x * x; - yy = y * y; - zz = z * z; - xy = x * y; - yz = y * z; - zx = z * x; - xs = x * sinAngle; - ys = y * sinAngle; - zs = z * sinAngle; - oneMinusCos = 1.0 - cosAngle; - - rotMat = new Matrix4x4(); - - rotMat.elements[0*4+0] = (oneMinusCos * xx) + cosAngle; - rotMat.elements[0*4+1] = (oneMinusCos * xy) - zs; - rotMat.elements[0*4+2] = (oneMinusCos * zx) + ys; - rotMat.elements[0*4+3] = 0.0; - - rotMat.elements[1*4+0] = (oneMinusCos * xy) + zs; - rotMat.elements[1*4+1] = (oneMinusCos * yy) + cosAngle; - rotMat.elements[1*4+2] = (oneMinusCos * yz) - xs; - rotMat.elements[1*4+3] = 0.0; - - rotMat.elements[2*4+0] = (oneMinusCos * zx) - ys; - rotMat.elements[2*4+1] = (oneMinusCos * yz) + xs; - rotMat.elements[2*4+2] = (oneMinusCos * zz) + cosAngle; - rotMat.elements[2*4+3] = 0.0; - - rotMat.elements[3*4+0] = 0.0; - rotMat.elements[3*4+1] = 0.0; - rotMat.elements[3*4+2] = 0.0; - rotMat.elements[3*4+3] = 1.0; - - rotMat = rotMat.multiply(this); - this.elements = rotMat.elements; - } - - return this; - }, - - frustum: function (left, right, bottom, top, nearZ, farZ) { - var deltaX = right - left; - var deltaY = top - bottom; - var deltaZ = farZ - nearZ; - var frust; - - if ( (nearZ <= 0.0) || (farZ <= 0.0) || - (deltaX <= 0.0) || (deltaY <= 0.0) || (deltaZ <= 0.0) ) - return this; - - frust = new Matrix4x4(); - - frust.elements[0*4+0] = 2.0 * nearZ / deltaX; - frust.elements[0*4+1] = frust.elements[0*4+2] = frust.elements[0*4+3] = 0.0; - - frust.elements[1*4+1] = 2.0 * nearZ / deltaY; - frust.elements[1*4+0] = frust.elements[1*4+2] = frust.elements[1*4+3] = 0.0; - - frust.elements[2*4+0] = (right + left) / deltaX; - frust.elements[2*4+1] = (top + bottom) / deltaY; - frust.elements[2*4+2] = -(nearZ + farZ) / deltaZ; - frust.elements[2*4+3] = -1.0; - - frust.elements[3*4+2] = -2.0 * nearZ * farZ / deltaZ; - frust.elements[3*4+0] = frust.elements[3*4+1] = frust.elements[3*4+3] = 0.0; - - frust = frust.multiply(this); - this.elements = frust.elements; - - return this; - }, - - perspective: function (fovy, aspect, nearZ, farZ) { - var frustumH = Math.tan(fovy / 360.0 * Math.PI) * nearZ; - var frustumW = frustumH * aspect; - - return this.frustum(-frustumW, frustumW, -frustumH, frustumH, nearZ, farZ); - }, - - ortho: function (left, right, bottom, top, nearZ, farZ) { - var deltaX = right - left; - var deltaY = top - bottom; - var deltaZ = farZ - nearZ; - - var ortho = new Matrix4x4(); - - if ( (deltaX == 0.0) || (deltaY == 0.0) || (deltaZ == 0.0) ) - return this; - - ortho.elements[0*4+0] = 2.0 / deltaX; - ortho.elements[3*4+0] = -(right + left) / deltaX; - ortho.elements[1*4+1] = 2.0 / deltaY; - ortho.elements[3*4+1] = -(top + bottom) / deltaY; - ortho.elements[2*4+2] = -2.0 / deltaZ; - ortho.elements[3*4+2] = -(nearZ + farZ) / deltaZ; - - ortho = ortho.multiply(this); - this.elements = ortho.elements; - - return this; - }, - - multiply: function (right) { - var tmp = new Matrix4x4(); - - for (var i = 0; i < 4; i++) { - tmp.elements[i*4+0] = - (this.elements[i*4+0] * right.elements[0*4+0]) + - (this.elements[i*4+1] * right.elements[1*4+0]) + - (this.elements[i*4+2] * right.elements[2*4+0]) + - (this.elements[i*4+3] * right.elements[3*4+0]) ; - - tmp.elements[i*4+1] = - (this.elements[i*4+0] * right.elements[0*4+1]) + - (this.elements[i*4+1] * right.elements[1*4+1]) + - (this.elements[i*4+2] * right.elements[2*4+1]) + - (this.elements[i*4+3] * right.elements[3*4+1]) ; - - tmp.elements[i*4+2] = - (this.elements[i*4+0] * right.elements[0*4+2]) + - (this.elements[i*4+1] * right.elements[1*4+2]) + - (this.elements[i*4+2] * right.elements[2*4+2]) + - (this.elements[i*4+3] * right.elements[3*4+2]) ; - - tmp.elements[i*4+3] = - (this.elements[i*4+0] * right.elements[0*4+3]) + - (this.elements[i*4+1] * right.elements[1*4+3]) + - (this.elements[i*4+2] * right.elements[2*4+3]) + - (this.elements[i*4+3] * right.elements[3*4+3]) ; - } - - this.elements = tmp.elements; - return this; - }, - - loadIdentity: function () { - for (var i = 0; i < 16; i++) - this.elements[i] = 0; - this.elements[0*4+0] = 1.0; - this.elements[1*4+1] = 1.0; - this.elements[2*4+2] = 1.0; - this.elements[3*4+3] = 1.0; - return this; - } -}; - -//adding a simple shape library -/* - * Copyright (c) 2009, Mozilla Corp - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the <organization> nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY <copyright holder> ''AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -/* - * Based on sample code from the OpenGL(R) ES 2.0 Programming Guide, which carriers - * the following header: - * - * Book: OpenGL(R) ES 2.0 Programming Guide - * Authors: Aaftab Munshi, Dan Ginsburg, Dave Shreiner - * ISBN-10: 0321502795 - * ISBN-13: 9780321502797 - * Publisher: Addison-Wesley Professional - * URLs: http://safari.informit.com/9780321563835 - * http://www.opengles-book.com - */ - -// -// port of esShapes.c -// - -function shallowCloneArray(ar) { - var o = Array(ar.length); - for (var i = 0; i < ar.length; i++) { - o[i] = ar[i]; - } - return o; -} - -function shallowCloneArrayScaled(ar, scale) { - var o = Array(ar.length); - for (var i = 0; i < ar.length; i++) { - o[i] = ar[i] * scale; - } - return o; -} - -// make these accessible directly in the glboal scope, -// in case someone wants to use them without copying -var esCubeVertices = [ - -0.5, -0.5, -0.5, - -0.5, -0.5, 0.5, - 0.5, -0.5, 0.5, - 0.5, -0.5, -0.5, - -0.5, 0.5, -0.5, - -0.5, 0.5, 0.5, - 0.5, 0.5, 0.5, - 0.5, 0.5, -0.5, - -0.5, -0.5, -0.5, - -0.5, 0.5, -0.5, - 0.5, 0.5, -0.5, - 0.5, -0.5, -0.5, - -0.5, -0.5, 0.5, - -0.5, 0.5, 0.5, - 0.5, 0.5, 0.5, - 0.5, -0.5, 0.5, - -0.5, -0.5, -0.5, - -0.5, -0.5, 0.5, - -0.5, 0.5, 0.5, - -0.5, 0.5, -0.5, - 0.5, -0.5, -0.5, - 0.5, -0.5, 0.5, - 0.5, 0.5, 0.5, - 0.5, 0.5, -0.5 -]; - -var esCubeNormals = [ - 0.0, -1.0, 0.0, - 0.0, -1.0, 0.0, - 0.0, -1.0, 0.0, - 0.0, -1.0, 0.0, - 0.0, 1.0, 0.0, - 0.0, 1.0, 0.0, - 0.0, 1.0, 0.0, - 0.0, 1.0, 0.0, - 0.0, 0.0, -1.0, - 0.0, 0.0, -1.0, - 0.0, 0.0, -1.0, - 0.0, 0.0, -1.0, - 0.0, 0.0, 1.0, - 0.0, 0.0, 1.0, - 0.0, 0.0, 1.0, - 0.0, 0.0, 1.0, - -1.0, 0.0, 0.0, - -1.0, 0.0, 0.0, - -1.0, 0.0, 0.0, - -1.0, 0.0, 0.0, - 1.0, 0.0, 0.0, - 1.0, 0.0, 0.0, - 1.0, 0.0, 0.0, - 1.0, 0.0, 0.0 -]; - -var esCubeTexCoords = [ - 0.0, 0.0, - 0.0, 1.0, - 1.0, 1.0, - 1.0, 0.0, - 1.0, 0.0, - 1.0, 1.0, - 0.0, 1.0, - 0.0, 0.0, - 0.0, 0.0, - 0.0, 1.0, - 1.0, 1.0, - 1.0, 0.0, - 0.0, 0.0, - 0.0, 1.0, - 1.0, 1.0, - 1.0, 0.0, - 0.0, 0.0, - 0.0, 1.0, - 1.0, 1.0, - 1.0, 0.0, - 0.0, 0.0, - 0.0, 1.0, - 1.0, 1.0, - 1.0, 0.0 -]; - -var esCubeIndices = [ - 0, 2, 1, - 0, 3, 2, - 4, 5, 6, - 4, 6, 7, - 8, 9, 10, - 8, 10, 11, - 12, 15, 14, - 12, 14, 13, - 16, 17, 18, - 16, 18, 19, - 20, 23, 22, - 20, 22, 21 -]; - -// will return an object that has vertices, normals, texCoords, and indices members -function esGenCube (scale) { - return { - vertices: shallowCloneArrayScaled(esCubeVertices, scale), - texCoords: shallowCloneArray(esCubeTexCoords), - indices: shallowCloneArray(esCubeIndices), - normals: shallowCloneArray(esCubeNormals) - }; -} - -// -// generates coordinate information for a sphere -// - -function esGenSphere (numSlices, radius) { - var i, j; - var numParallels = numSlices; - var numVertices = (numParallels + 1) * (numSlices + 1); - var numIndices = numParallels * numSlices * 6; - var angleStep = (2 * Math.PI) / numSlices; - - var vertices = Array(3*numVertices); - var normals = Array(3*numVertices); - var texCoords = Array(2*numVertices); - var indices = Array(numIndices); - - for (i = 0; i < numParallels+1; i++) { - for (j = 0; j < numSlices+1; j++) { - var vertex = (i * (numSlices+1) + j) * 3; - - vertices[vertex+0] = radius * Math.sin(angleStep * i) * Math.sin(angleStep * j); - vertices[vertex+1] = radius * Math.cos(angleStep * i); - vertices[vertex+2] = radius * Math.sin(angleStep * i) * Math.cos(angleStep * j); - - normals[vertex+0] = vertices[vertex+0] / radius; - normals[vertex+1] = vertices[vertex+1] / radius; - normals[vertex+2] = vertices[vertex+2] / radius; - - var texIndex = (i * (numSlices+1) + j) * 2; - - texCoords[texIndex+0] = j / numSlices; - texCoords[texIndex+1] = (1 - i) / (numParallels - 1); - } - } - - var k = 0; - for (i = 0; i < numParallels; i++) { - for (j = 0; j < numSlices; j++) { - indices[k++] = i * (numSlices + 1) + j; - indices[k++] = (i + 1) * (numSlices + 1) + j; - indices[k++] = (i + 1) * (numSlices + 1) + (j + 1); - - indices[k++] = i * (numSlices + 1) + j; - indices[k++] = (i + 1) * (numSlices + 1) + (j + 1); - indices[k++] = i * (numSlices + 1) + (j + 1); - } - } - - return { - vertices: vertices, - normals: normals, - texCoords: texCoords, - indices: indices - }; -} - -/* - * Copyright (c) 2009, Mozilla Corp - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the <organization> nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY <copyright holder> ''AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -// convenience function to create a shader from a filepath -function getShader(filepath, type) -{ - var shaderScriptType = type; - var shaderPath = filepath; - - if (!shaderPath || shaderPath.length == 0) - return 0; - - var shader = Gles.CreateShader(type); - - if (shader == 0) return 0; - - //added method - Gles.ShaderSourceFile(shader, filepath); - Gles.CompileShader(shader); - - if (Gles.GetShaderiv(shader, Gles.COMPILE_STATUS) != 1) { - var error = Gles.GetShaderInfoLog(shader); - log("Error while compiling " + id + ":"); - log(shader); - - Gles.DeleteShader(shader); - return 0; - } - - return shader; -} - -// Convenience function to create a program from all the passed-in -// shader filepaths and types. -function getProgram() { - var shaders = []; - - // first load and compile all the passed-in shaders. - for (var i = 0; i < arguments.length; i+=2) { - var shader = getShader(arguments[i], arguments[i+1]); - if (shader == 0) - return 0; - shaders.push(shader); - } - - // then do the program object creation - var program = Gles.CreateProgram(); - if (program == 0) - return 0; - - // attach all the shaders - for (var i = 0; i < shaders.length; i++) { - Gles.AttachShader(program, shaders[i]); - } - - // link, and check for errors - Gles.LinkProgram(program); - - var linked = Gles.GetProgramiv(program, Gles.LINK_STATUS); - if (!linked) { - var error = Gles.GetProgramInfoLog(program); - log("Error while linking: " + error); - return 0; - } - - return program; -} - -//end library code. - +//load libraries +load("common.js", "shaderutil.js"); // an object we'll use to store shaders, textures, etc. on as we create them var userData = { }; examples/gles/ch9-simple-texture-cubemap.js @@ -1,561 +1,5 @@ -//adding matrix 4x4 library -/* - * Copyright (c) 2009, Mozilla Corp - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the <organization> nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY <copyright holder> ''AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -/* - * Based on sample code from the OpenGL(R) ES 2.0 Programming Guide, which carriers - * the following header: - * - * Book: OpenGL(R) ES 2.0 Programming Guide - * Authors: Aaftab Munshi, Dan Ginsburg, Dave Shreiner - * ISBN-10: 0321502795 - * ISBN-13: 9780321502797 - * Publisher: Addison-Wesley Professional - * URLs: http://safari.informit.com/9780321563835 - * http://www.opengles-book.com - */ - -// -// A simple 4x4 Matrix utility class -// - -function Matrix4x4() { - this.elements = Array(16); - this.loadIdentity(); -} - -Matrix4x4.prototype = { - scale: function (sx, sy, sz) { - this.elements[0*4+0] *= sx; - this.elements[0*4+1] *= sx; - this.elements[0*4+2] *= sx; - this.elements[0*4+3] *= sx; - - this.elements[1*4+0] *= sy; - this.elements[1*4+1] *= sy; - this.elements[1*4+2] *= sy; - this.elements[1*4+3] *= sy; - - this.elements[2*4+0] *= sz; - this.elements[2*4+1] *= sz; - this.elements[2*4+2] *= sz; - this.elements[2*4+3] *= sz; - - return this; - }, - - translate: function (tx, ty, tz) { - this.elements[3*4+0] += this.elements[0*4+0] * tx + this.elements[1*4+0] * ty + this.elements[2*4+0] * tz; - this.elements[3*4+1] += this.elements[0*4+1] * tx + this.elements[1*4+1] * ty + this.elements[2*4+1] * tz; - this.elements[3*4+2] += this.elements[0*4+2] * tx + this.elements[1*4+2] * ty + this.elements[2*4+2] * tz; - this.elements[3*4+3] += this.elements[0*4+3] * tx + this.elements[1*4+3] * ty + this.elements[2*4+3] * tz; - - return this; - }, - - rotate: function (angle, x, y, z) { - var mag = Math.sqrt(x*x + y*y + z*z); - var sinAngle = Math.sin(angle * Math.PI / 180.0); - var cosAngle = Math.cos(angle * Math.PI / 180.0); - - if (mag > 0) { - var xx, yy, zz, xy, yz, zx, xs, ys, zs; - var oneMinusCos; - var rotMat; - - x /= mag; - y /= mag; - z /= mag; - - xx = x * x; - yy = y * y; - zz = z * z; - xy = x * y; - yz = y * z; - zx = z * x; - xs = x * sinAngle; - ys = y * sinAngle; - zs = z * sinAngle; - oneMinusCos = 1.0 - cosAngle; - - rotMat = new Matrix4x4(); - - rotMat.elements[0*4+0] = (oneMinusCos * xx) + cosAngle; - rotMat.elements[0*4+1] = (oneMinusCos * xy) - zs; - rotMat.elements[0*4+2] = (oneMinusCos * zx) + ys; - rotMat.elements[0*4+3] = 0.0; - - rotMat.elements[1*4+0] = (oneMinusCos * xy) + zs; - rotMat.elements[1*4+1] = (oneMinusCos * yy) + cosAngle; - rotMat.elements[1*4+2] = (oneMinusCos * yz) - xs; - rotMat.elements[1*4+3] = 0.0; - - rotMat.elements[2*4+0] = (oneMinusCos * zx) - ys; - rotMat.elements[2*4+1] = (oneMinusCos * yz) + xs; - rotMat.elements[2*4+2] = (oneMinusCos * zz) + cosAngle; - rotMat.elements[2*4+3] = 0.0; - - rotMat.elements[3*4+0] = 0.0; - rotMat.elements[3*4+1] = 0.0; - rotMat.elements[3*4+2] = 0.0; - rotMat.elements[3*4+3] = 1.0; - - rotMat = rotMat.multiply(this); - this.elements = rotMat.elements; - } - - return this; - }, - - frustum: function (left, right, bottom, top, nearZ, farZ) { - var deltaX = right - left; - var deltaY = top - bottom; - var deltaZ = farZ - nearZ; - var frust; - - if ( (nearZ <= 0.0) || (farZ <= 0.0) || - (deltaX <= 0.0) || (deltaY <= 0.0) || (deltaZ <= 0.0) ) - return this; - - frust = new Matrix4x4(); - - frust.elements[0*4+0] = 2.0 * nearZ / deltaX; - frust.elements[0*4+1] = frust.elements[0*4+2] = frust.elements[0*4+3] = 0.0; - - frust.elements[1*4+1] = 2.0 * nearZ / deltaY; - frust.elements[1*4+0] = frust.elements[1*4+2] = frust.elements[1*4+3] = 0.0; - - frust.elements[2*4+0] = (right + left) / deltaX; - frust.elements[2*4+1] = (top + bottom) / deltaY; - frust.elements[2*4+2] = -(nearZ + farZ) / deltaZ; - frust.elements[2*4+3] = -1.0; - - frust.elements[3*4+2] = -2.0 * nearZ * farZ / deltaZ; - frust.elements[3*4+0] = frust.elements[3*4+1] = frust.elements[3*4+3] = 0.0; - - frust = frust.multiply(this); - this.elements = frust.elements; - - return this; - }, - - perspective: function (fovy, aspect, nearZ, farZ) { - var frustumH = Math.tan(fovy / 360.0 * Math.PI) * nearZ; - var frustumW = frustumH * aspect; - - return this.frustum(-frustumW, frustumW, -frustumH, frustumH, nearZ, farZ); - }, - - ortho: function (left, right, bottom, top, nearZ, farZ) { - var deltaX = right - left; - var deltaY = top - bottom; - var deltaZ = farZ - nearZ; - - var ortho = new Matrix4x4(); - - if ( (deltaX == 0.0) || (deltaY == 0.0) || (deltaZ == 0.0) ) - return this; - - ortho.elements[0*4+0] = 2.0 / deltaX; - ortho.elements[3*4+0] = -(right + left) / deltaX; - ortho.elements[1*4+1] = 2.0 / deltaY; - ortho.elements[3*4+1] = -(top + bottom) / deltaY; - ortho.elements[2*4+2] = -2.0 / deltaZ; - ortho.elements[3*4+2] = -(nearZ + farZ) / deltaZ; - - ortho = ortho.multiply(this); - this.elements = ortho.elements; - - return this; - }, - - multiply: function (right) { - var tmp = new Matrix4x4(); - - for (var i = 0; i < 4; i++) { - tmp.elements[i*4+0] = - (this.elements[i*4+0] * right.elements[0*4+0]) + - (this.elements[i*4+1] * right.elements[1*4+0]) + - (this.elements[i*4+2] * right.elements[2*4+0]) + - (this.elements[i*4+3] * right.elements[3*4+0]) ; - - tmp.elements[i*4+1] = - (this.elements[i*4+0] * right.elements[0*4+1]) + - (this.elements[i*4+1] * right.elements[1*4+1]) + - (this.elements[i*4+2] * right.elements[2*4+1]) + - (this.elements[i*4+3] * right.elements[3*4+1]) ; - - tmp.elements[i*4+2] = - (this.elements[i*4+0] * right.elements[0*4+2]) + - (this.elements[i*4+1] * right.elements[1*4+2]) + - (this.elements[i*4+2] * right.elements[2*4+2]) + - (this.elements[i*4+3] * right.elements[3*4+2]) ; - - tmp.elements[i*4+3] = - (this.elements[i*4+0] * right.elements[0*4+3]) + - (this.elements[i*4+1] * right.elements[1*4+3]) + - (this.elements[i*4+2] * right.elements[2*4+3]) + - (this.elements[i*4+3] * right.elements[3*4+3]) ; - } - - this.elements = tmp.elements; - return this; - }, - - loadIdentity: function () { - for (var i = 0; i < 16; i++) - this.elements[i] = 0; - this.elements[0*4+0] = 1.0; - this.elements[1*4+1] = 1.0; - this.elements[2*4+2] = 1.0; - this.elements[3*4+3] = 1.0; - return this; - } -}; - -//adding a simple shape library -/* - * Copyright (c) 2009, Mozilla Corp - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the <organization> nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY <copyright holder> ''AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -/* - * Based on sample code from the OpenGL(R) ES 2.0 Programming Guide, which carriers - * the following header: - * - * Book: OpenGL(R) ES 2.0 Programming Guide - * Authors: Aaftab Munshi, Dan Ginsburg, Dave Shreiner - * ISBN-10: 0321502795 - * ISBN-13: 9780321502797 - * Publisher: Addison-Wesley Professional - * URLs: http://safari.informit.com/9780321563835 - * http://www.opengles-book.com - */ - -// -// port of esShapes.c -// - -function shallowCloneArray(ar) { - var o = Array(ar.length); - for (var i = 0; i < ar.length; i++) { - o[i] = ar[i]; - } - return o; -} - -function shallowCloneArrayScaled(ar, scale) { - var o = Array(ar.length); - for (var i = 0; i < ar.length; i++) { - o[i] = ar[i] * scale; - } - return o; -} - -// make these accessible directly in the glboal scope, -// in case someone wants to use them without copying -var esCubeVertices = [ - -0.5, -0.5, -0.5, - -0.5, -0.5, 0.5, - 0.5, -0.5, 0.5, - 0.5, -0.5, -0.5, - -0.5, 0.5, -0.5, - -0.5, 0.5, 0.5, - 0.5, 0.5, 0.5, - 0.5, 0.5, -0.5, - -0.5, -0.5, -0.5, - -0.5, 0.5, -0.5, - 0.5, 0.5, -0.5, - 0.5, -0.5, -0.5, - -0.5, -0.5, 0.5, - -0.5, 0.5, 0.5, - 0.5, 0.5, 0.5, - 0.5, -0.5, 0.5, - -0.5, -0.5, -0.5, - -0.5, -0.5, 0.5, - -0.5, 0.5, 0.5, - -0.5, 0.5, -0.5, - 0.5, -0.5, -0.5, - 0.5, -0.5, 0.5, - 0.5, 0.5, 0.5, - 0.5, 0.5, -0.5 -]; - -var esCubeNormals = [ - 0.0, -1.0, 0.0, - 0.0, -1.0, 0.0, - 0.0, -1.0, 0.0, - 0.0, -1.0, 0.0, - 0.0, 1.0, 0.0, - 0.0, 1.0, 0.0, - 0.0, 1.0, 0.0, - 0.0, 1.0, 0.0, - 0.0, 0.0, -1.0, - 0.0, 0.0, -1.0, - 0.0, 0.0, -1.0, - 0.0, 0.0, -1.0, - 0.0, 0.0, 1.0, - 0.0, 0.0, 1.0, - 0.0, 0.0, 1.0, - 0.0, 0.0, 1.0, - -1.0, 0.0, 0.0, - -1.0, 0.0, 0.0, - -1.0, 0.0, 0.0, - -1.0, 0.0, 0.0, - 1.0, 0.0, 0.0, - 1.0, 0.0, 0.0, - 1.0, 0.0, 0.0, - 1.0, 0.0, 0.0 -]; - -var esCubeTexCoords = [ - 0.0, 0.0, - 0.0, 1.0, - 1.0, 1.0, - 1.0, 0.0, - 1.0, 0.0, - 1.0, 1.0, - 0.0, 1.0, - 0.0, 0.0, - 0.0, 0.0, - 0.0, 1.0, - 1.0, 1.0, - 1.0, 0.0, - 0.0, 0.0, - 0.0, 1.0, - 1.0, 1.0, - 1.0, 0.0, - 0.0, 0.0, - 0.0, 1.0, - 1.0, 1.0, - 1.0, 0.0, - 0.0, 0.0, - 0.0, 1.0, - 1.0, 1.0, - 1.0, 0.0 -]; - -var esCubeIndices = [ - 0, 2, 1, - 0, 3, 2, - 4, 5, 6, - 4, 6, 7, - 8, 9, 10, - 8, 10, 11, - 12, 15, 14, - 12, 14, 13, - 16, 17, 18, - 16, 18, 19, - 20, 23, 22, - 20, 22, 21 -]; - -// will return an object that has vertices, normals, texCoords, and indices members -function esGenCube (scale) { - return { - vertices: shallowCloneArrayScaled(esCubeVertices, scale), - texCoords: shallowCloneArray(esCubeTexCoords), - indices: shallowCloneArray(esCubeIndices), - normals: shallowCloneArray(esCubeNormals) - }; -} - -// -// generates coordinate information for a sphere -// - -function esGenSphere (numSlices, radius) { - var i, j; - var numParallels = numSlices; - var numVertices = (numParallels + 1) * (numSlices + 1); - var numIndices = numParallels * numSlices * 6; - var angleStep = (2 * Math.PI) / numSlices; - - var vertices = Array(3*numVertices); - var normals = Array(3*numVertices); - var texCoords = Array(2*numVertices); - var indices = Array(numIndices); - - for (i = 0; i < numParallels+1; i++) { - for (j = 0; j < numSlices+1; j++) { - var vertex = (i * (numSlices+1) + j) * 3; - - vertices[vertex+0] = radius * Math.sin(angleStep * i) * Math.sin(angleStep * j); - vertices[vertex+1] = radius * Math.cos(angleStep * i); - vertices[vertex+2] = radius * Math.sin(angleStep * i) * Math.cos(angleStep * j); - - normals[vertex+0] = vertices[vertex+0] / radius; - normals[vertex+1] = vertices[vertex+1] / radius; - normals[vertex+2] = vertices[vertex+2] / radius; - - var texIndex = (i * (numSlices+1) + j) * 2; - - texCoords[texIndex+0] = j / numSlices; - texCoords[texIndex+1] = (1 - i) / (numParallels - 1); - } - } - - var k = 0; - for (i = 0; i < numParallels; i++) { - for (j = 0; j < numSlices; j++) { - indices[k++] = i * (numSlices + 1) + j; - indices[k++] = (i + 1) * (numSlices + 1) + j; - indices[k++] = (i + 1) * (numSlices + 1) + (j + 1); - - indices[k++] = i * (numSlices + 1) + j; - indices[k++] = (i + 1) * (numSlices + 1) + (j + 1); - indices[k++] = i * (numSlices + 1) + (j + 1); - } - } - - return { - vertices: vertices, - normals: normals, - texCoords: texCoords, - indices: indices - }; -} - -/* - * Copyright (c) 2009, Mozilla Corp - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the <organization> nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY <copyright holder> ''AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -// convenience function to create a shader from a filepath -function getShader(filepath, type) -{ - var shaderScriptType = type; - var shaderPath = filepath; - - if (!shaderPath || shaderPath.length == 0) - return 0; - - var shader = Gles.CreateShader(type); - - if (shader == 0) return 0; - - //added method - Gles.ShaderSourceFile(shader, filepath); - Gles.CompileShader(shader); - - if (Gles.GetShaderiv(shader, Gles.COMPILE_STATUS) != 1) { - var error = Gles.GetShaderInfoLog(shader); - log("Error while compiling " + id + ":"); - log(shader); - - Gles.DeleteShader(shader); - return 0; - } - - return shader; -} - -// Convenience function to create a program from all the passed-in -// shader filepaths and types. -function getProgram() { - var shaders = []; - - // first load and compile all the passed-in shaders. - for (var i = 0; i < arguments.length; i+=2) { - var shader = getShader(arguments[i], arguments[i+1]); - if (shader == 0) - return 0; - shaders.push(shader); - } - - // then do the program object creation - var program = Gles.CreateProgram(); - if (program == 0) - return 0; - - // attach all the shaders - for (var i = 0; i < shaders.length; i++) { - Gles.AttachShader(program, shaders[i]); - } - - // link, and check for errors - Gles.LinkProgram(program); - - var linked = Gles.GetProgramiv(program, Gles.LINK_STATUS); - if (!linked) { - var error = Gles.GetProgramInfoLog(program); - log("Error while linking: " + error); - return 0; - } - - return program; -} - -//end library code. - +//load common code. +load("common.js", "shaderutil.js"); // an object we'll use to store shaders, textures, etc. on as we create them var userData = { }; examples/gles/ch9-simple-texture2d.js @@ -1,21 +1,8 @@ // This is a hacked up version of vlad's port of FRequency's metatunnel. // http://people.mozilla.com/~vladimir/misc/metatunnel-3d.html +load("shaderutil.js"); -var gl = Gles; - -gl.getShaderParameter = gl.GetShaderiv; -gl.getProgramParameter = gl.GetProgramiv; - -// Bind Gles.BlahBlah to Gles.blahBlah. -for (name in Gles) { - var x = Gles[name]; - if (typeof x === 'function') { - var lc = name[0].toLowerCase() + name.substr(1); - Gles[lc] = x; - } -} - -w = 740; h = 480; +var w = 740, h = 480; //Initialize Glut Glut.Init(); @@ -25,102 +12,43 @@ Glut.InitWindowSize(w, h); //Create the window Glut.CreateWindow("OpenGL on V8 baby!"); - var fragment_shader_source = "\n" -+ "uniform vec4 in_color;\n" -+ "vec2 v=(gl_FragCoord.xy-vec2(400,300))/vec2(400,300);\n" -+ "float w=dot(in_color.xyz,vec3(1.0,256.0,65536.0))*.25;\n" -+ "const float s=0.4;\n" - -+ "float obj(vec3 pos){\n" -+ "float final=1.0;\n" -+ "final*=distance(pos,vec3(cos(w)+sin(w*0.2),0.3,2.0+cos(w*0.5)*0.5));\n" -+ "final*=distance(pos,vec3(-cos(w*0.7),0.3,2.0+sin(w*0.5)));\n" -+ "final*=distance(pos,vec3(-sin(w*0.2)*0.5,sin(w),2.0));\n" -+ "final *=cos(pos.y)*cos(pos.x)-0.1-cos(pos.z*7.+w*7.)*cos(pos.x*3.)*cos(pos.y*4.)*0.1;\n" -+ "return final;\n" -+ "}\n" - -+ "void main(){vec3 o=vec3(v.x,v.y*1.25,0.0);\n" -+ "vec3 d=vec3(v.x+cos(w)*.3,v.y,1.0)/64.0;\n" -+ "vec4 color=vec4(0.0);\n" -+ "float t=0.0;\n" -+ "for(int i=0;i<75;i++) {\n" -+ "if(obj(o+d*t)<s){\n" -+ "t-=5.0;\n" -+ "for(int j=0;j<5;j++){\n" -+ "if(obj(o+d*t)<s){\n" -+ "break;\n" -+ "}\n" -+ "t+=1.0;\n" -+ "}\n" -+ "vec3 e=vec3(0.01,.0,.0);\n" -+ "vec3 n=vec3(0.0);\n" -+ "n.x=obj(o+d*t)-obj(vec3(o+d*t+e.xyy));\n" -+ "n.y=obj(o+d*t)-obj(vec3(o+d*t+e.yxy));\n" -+ "n.z=obj(o+d*t)-obj(vec3(o+d*t+e.yyx));\n" -+ "n=normalize(n);\n" -+ "color+=max(dot(vec3(0.0,0.0,-0.5),n),0.0)+max(dot(vec3(0.0,-0.5,0.5),n),0.0)*0.5;break;\n" -+ "}\n" -+ "t+=5.0;\n" -+ "}\n" -+ "gl_FragColor=color+vec4(0.1,0.2,0.5,1.0)*(t*0.025);\n" -+ "}"; +//Make a program with the following shaders +var p = getProgram("shaders/m3d-vshader.sl", + Gles.VERTEX_SHADER, + "shaders/m3d-fshader.sl", + Gles.FRAGMENT_SHADER); - var vertex_shader_source = - "attribute vec4 pos; void main() { gl_Position = vec4(pos.x * float(" + w/2 + "), pos.y * float(" + h/2 + "), 0.0, 1.0); }"; +if (p == 0) + return false; - var buffers = gl.genBuffers(1); +Gles.UseProgram(p); - var vs = gl.createShader(gl.VERTEX_SHADER); - gl.shaderSource(vs, vertex_shader_source); - gl.compileShader(vs); +// Store our attrib data in a VBO. +var buffers = Gles.GenBuffers(1); +Gles.BindBuffer(Gles.ARRAY_BUFFER, buffers[0]); +Gles.BufferData(Gles.ARRAY_BUFFER, [ -1, 1, 1, 1, -1, -1, 1, -1], Gles.FLOAT, Gles.STATIC_DRAW); - var fs = gl.createShader(gl.FRAGMENT_SHADER); - gl.shaderSource(fs, fragment_shader_source); - gl.compileShader(fs); - if (gl.getShaderParameter(fs, gl.COMPILE_STATUS) != 1) { - var error = gl.getShaderInfoLog(fs); - return; - } +Gles.VertexAttribPointer(0, 2, Gles.FLOAT, false, 0, 0); +Gles.EnableVertexAttribArray(0); - p = gl.createProgram(); - gl.attachShader(p, vs); - gl.attachShader(p, fs); - gl.linkProgram(p); +function draw() { + Gles.Viewport(0, 0, w, h); + var n = Date.now(); + var r = n & 0xff; + var g = (n>>8) & 0xff; + var b = (n>>16) & 0xff; + Gles.Uniform4fv(0, 1, [r/255.0, g/255.0, b/255.0, 1.0]); + Gles.DrawArrays(Gles.TRIANGLE_STRIP, 0, 4); - var linked = gl.getProgramParameter(p, gl.LINK_STATUS); - if (!linked) { - var error = gl.getProgramInfoLog(p); - return 0; - } - - gl.useProgram(p); - - // Store our attrib data in a VBO. - gl.bindBuffer(gl.ARRAY_BUFFER, buffers[0]); - gl.bufferData(gl.ARRAY_BUFFER, [ -1, 1, 1, 1, -1, -1, 1, -1], gl.FLOAT, gl.STATIC_DRAW); - - gl.vertexAttribPointer(0, 2, gl.FLOAT, false, 0, 0); - gl.enableVertexAttribArray(0); - - function draw() { - gl.viewport(0, 0, w, h); - var n = Date.now(); - r = n & 0xff; - g = (n>>8) & 0xff; - b = (n>>16) & 0xff; - gl.uniform4fv(0, 1, [r/255.0, g/255.0, b/255.0, 1.0]); - gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4); - - Glut.SwapBuffers(); - } + Glut.SwapBuffers(); +} - Glut.DisplayFunc(draw); +Glut.DisplayFunc(draw); - //Set timeout callback - Glut.TimerFunc(25, function() { - Glut.PostRedisplay(); - Glut.TimerFunc(25, arguments.callee, 0); - }, 0); +//Set timeout callback +Glut.TimerFunc(25, function() { + Glut.PostRedisplay(); + Glut.TimerFunc(25, arguments.callee, 0); +}, 0); - Glut.MainLoop(); +Glut.MainLoop(); examples/gles/metatunnel-3d.js @@ -22,7 +22,6 @@ using namespace v8; Persistent<Object> GlesFactory::self_; Persistent<Context> GlesFactory::gles_persistent_context; -char* GlesFactory::root_path; // glGenBuffers uses an output parameter to return an array of ints. Handle<Value> GLESglGenBuffersCallback(const Arguments& args) { if (args.Length() != 1) @@ -1021,6 +1020,8 @@ Handle<Value> GLESglGetVertexAttribCallback(const Arguments& args) { return v8::Undefined(); } + + Handle<Value> GLESglTexImage2DCallback(const Arguments& args) { if (args.Length() != 9) return v8::Undefined(); @@ -1195,6 +1196,33 @@ Handle<Value> GLESglTexImage2DCallback(const Arguments& args) { return v8::Undefined(); } +Handle<Value> GLESglTexImage2DFileCallback(const Arguments& args) { + + if (args.Length() != 1) return v8::Undefined(); + //define handle scope + HandleScope handle_scope; + //get arguments + String::Utf8Value value(args[0]); + char* filepath_str = *value; + + char* filename = Utils::getRealPath(filepath_str); + + //take care of relative/absolute paths. + Image* img = loadPNG(filename); + + glTexImage2D(GL_TEXTURE_2D, // target + 0, // level + GL_RGB, // interal format + img->width, img->height, // width, height + 0, // border + GL_RGB, // format + GL_UNSIGNED_BYTE, // type + (const void*)img->pixels); + + delete[] filename; + + return v8::Undefined(); +} Handle<Value> GLESglTexSubImage2DCallback(const Arguments& args) { @@ -1506,17 +1534,7 @@ Handle<Value> GLESglShaderSourceFileCallback(const Arguments& args) { return v8::Undefined(); char* filepath_str = *filepath_ascii; - - //read the file source - char* filename = NULL; - if(filepath_str[0] != '/') { - filename = new char[strlen(GlesFactory::root_path) + strlen(filepath_str) +1]; - strcpy(filename, GlesFactory::root_path); - strcat(filename, filepath_str); - } else { - filename = new char[strlen(filepath_str) +1]; - strcpy(filename, filepath_str); - } + char* filename = Utils::getRealPath(filepath_str); std::ifstream in_file(filename); @@ -4612,6 +4630,8 @@ Handle<ObjectTemplate> GlesFactory::createGles(void) { Gles->Set(String::NewSymbol("ShaderSourceFile"), FunctionTemplate::New(GLESglShaderSourceFileCallback)); + Gles->Set(String::NewSymbol("TexImage2DFile"), FunctionTemplate::New(GLESglTexImage2DFileCallback)); + // Again, return the result through the current handle scope. return handle_scope.Close(Gles); glesbindings/glesbind.cpp @@ -7,14 +7,14 @@ #define GLESBIND_H_ #include <v8.h> +#include "../utils.h" +#include "../imageloader.h" class GlesFactory { public: static v8::Handle<v8::ObjectTemplate> createGles(void); - - static v8::Persistent<v8::Object> self_; static v8::Persistent<v8::Context> gles_persistent_context; - static char* root_path; + static v8::Persistent<v8::Object> self_; }; #endif /* GLESBIND_H_ */ glesbindings/glesbind.h @@ -83,7 +83,8 @@ accessor_extras = ['glGetParameter', 'glGetTexParameter', 'glGetVertexAttrib', 'glGetRenderbufferParameter', - 'glShaderSourceFile'] + 'glShaderSourceFile', + 'glTexImage2DFile'] EXCLUDE = re.compile(exclude, re.VERBOSE) TEMPLATE = re.compile(template, re.VERBOSE) @@ -149,7 +150,6 @@ using namespace v8; Persistent<Object> GlesFactory::self_; Persistent<Context> GlesFactory::gles_persistent_context; -char* GlesFactory::root_path; """ + custom_code + '\n'.join(text_out) + '\n' + generate_main_function(constants, functions)) glesbindings/glesbind.py @@ -996,6 +996,8 @@ Handle<Value> GLESglGetVertexAttribCallback(const Arguments& args) { return v8::Undefined(); } + + Handle<Value> GLESglTexImage2DCallback(const Arguments& args) { if (args.Length() != 9) return v8::Undefined(); @@ -1170,6 +1172,33 @@ Handle<Value> GLESglTexImage2DCallback(const Arguments& args) { return v8::Undefined(); } +Handle<Value> GLESglTexImage2DFileCallback(const Arguments& args) { + + if (args.Length() != 1) return v8::Undefined(); + //define handle scope + HandleScope handle_scope; + //get arguments + String::Utf8Value value(args[0]); + char* filepath_str = *value; + + char* filename = Utils::getRealPath(filepath_str); + + //take care of relative/absolute paths. + Image* img = loadPNG(filename); + + glTexImage2D(GL_TEXTURE_2D, // target + 0, // level + GL_RGB, // interal format + img->width, img->height, // width, height + 0, // border + GL_RGB, // format + GL_UNSIGNED_BYTE, // type + (const void*)img->pixels); + + delete[] filename; + + return v8::Undefined(); +} Handle<Value> GLESglTexSubImage2DCallback(const Arguments& args) { @@ -1481,17 +1510,7 @@ Handle<Value> GLESglShaderSourceFileCallback(const Arguments& args) { return v8::Undefined(); char* filepath_str = *filepath_ascii; - - //read the file source - char* filename = NULL; - if(filepath_str[0] != '/') { - filename = new char[strlen(GlesFactory::root_path) + strlen(filepath_str) +1]; - strcpy(filename, GlesFactory::root_path); - strcat(filename, filepath_str); - } else { - filename = new char[strlen(filepath_str) +1]; - strcpy(filename, filepath_str); - } + char* filename = Utils::getRealPath(filepath_str); std::ifstream in_file(filename); glesbindings/glescustom.cpp @@ -20,27 +20,6 @@ void ParseOptions(int argc, } } -// Reads a file into a v8 string. -Handle<String> ReadFile(const string& name) { - FILE* file = fopen(name.c_str(), "rb"); - if (file == NULL) return Handle<String>(); - - fseek(file, 0, SEEK_END); - int size = ftell(file); - rewind(file); - - char* chars = new char[size + 1]; - chars[size] = '\0'; - for (int i = 0; i < size;) { - int read = fread(&chars[i], 1, size - i, file); - i += read; - } - fclose(file); - Handle<String> result = String::New(chars, size); - delete[] chars; - return result; -} - int main(int argc, char* argv[]) { string file; ParseOptions(argc, argv, &file); @@ -49,14 +28,8 @@ int main(int argc, char* argv[]) { return 1; } - HandleScope scope; - Handle<String> source = ReadFile(file); - if (source.IsEmpty()) { - fprintf(stderr, "Error reading '%s'.\n", file.c_str()); - return 1; - } - V8GL v8gl(source); - if(!v8gl.initialize(&argc, argv)) { + V8GL v8gl; + if(!v8gl.initialize(&argc, argv, file)) { fprintf(stderr, "Error initializing script.\n"); return 1; } main.cpp @@ -5,53 +5,118 @@ #include "v8-gl.h" #include <stdio.h> +#include <string> #include <string.h> -Handle<Value> log(const Arguments& args) { - //if less that nbr of formal parameters then do nothing - if (args.Length() < 1) return v8::Undefined(); - //define handle scope - HandleScope scope; - //get arguments - String::Utf8Value value0(args[0]); - char* arg0 = *value0; +Persistent<Context> V8GL::context; - //make call - fprintf(stdout, "%s", arg0); - return v8::Undefined(); -} +//UTILITY FUNCTIONS +// Reads a file into a v8 string. +Handle<String> ReadFile(const string& name) { + FILE* file = fopen(name.c_str(), "rb"); + if (file == NULL) return Handle<String>(); -V8GL::V8GL(Handle<String> script) : script_(script) {}; + fseek(file, 0, SEEK_END); + int size = ftell(file); + rewind(file); -bool V8GL::executeScript() { + char* chars = new char[size + 1]; + chars[size] = '\0'; + for (int i = 0; i < size;) { + int read = fread(&chars[i], 1, size - i, file); + i += read; + } + fclose(file); + Handle<String> result = String::New(chars, size); + delete[] chars; + return result; +} + +bool exec(string file) { HandleScope handle_scope; + Handle<String> source = ReadFile(file); + + if (source.IsEmpty()) { + fprintf(stderr, "Error reading '%s'.\n", file.c_str()); + return false; + } // We're just about to compile the script; set up an error handler to // catch any exceptions the script might throw. TryCatch try_catch; // Compile the script and check for errors. - Handle<Script> compiled_script = Script::Compile(script_); + Handle<Script> compiled_script = Script::Compile(source); if (compiled_script.IsEmpty()) { - String::Utf8Value error(try_catch.Exception()); - printf("%s \n\n", *error); - // The script failed to compile; bail out. - return false; + String::Utf8Value error(try_catch.Exception()); + printf("%s \n\n", *error); + // The script failed to compile; bail out. + return false; } // Run the script! Handle<Value> result = compiled_script->Run(); if (result.IsEmpty()) { - // The TryCatch above is still in effect and will have caught the error. - String::Utf8Value error(try_catch.Exception()); - printf("%s \n\n", *error); - // Running the script failed; bail out. - return false; + // The TryCatch above is still in effect and will have caught the error. + String::Utf8Value error(try_catch.Exception()); + printf("%s \n\n", *error); + // Running the script failed; bail out. + return false; } return true; } -bool V8GL::initialize(int* pargc, char** argv) { + +//FUNCTIONS IN GLOBAL SCOPE + +//prints a string to stdout +Handle<Value> log(const Arguments& args) { + //if less that nbr of formal parameters then do nothing + if (args.Length() < 1) return v8::Undefined(); + //define handle scope + HandleScope scope; + //get arguments + String::Utf8Value value0(args[0]); + char* arg0 = *value0; + + //make call + fprintf(stdout, "%s", arg0); + return v8::Undefined(); +} + +//loads a js file +Handle<Value> load(const Arguments& args) { + //if less that nbr of formal parameters then do nothing + int len = args.Length(); + int i; + + if (len < 1) return v8::Undefined(); + //define handle scope + HandleScope scope; + + // Enter the new context so all the following operations take place + // within it. + Context::Scope context_scope(V8GL::context); + + for (i = 0; i < len; ++i) { + //get argument + String::Utf8Value value0(args[i]); + char* arg0 = *value0; + string str(Utils::getRealPath(arg0)); + if(!exec(str)) { + fprintf(stderr, "Error reading '%s'.\n", arg0); + return v8::Undefined(); + } + } + + return v8::Undefined(); +} + +bool V8GL::executeScript(string file) { + return exec(file); +} + +bool V8GL::initialize(int* pargc, char** argv, string scriptname) { // Create a handle scope to hold the temporary references. HandleScope handle_scope; @@ -64,16 +129,20 @@ bool V8GL::initialize(int* pargc, char** argv) { Handle<ObjectTemplate> Gl = GlFactory::createGl(); Handle<ObjectTemplate> Gles = GlesFactory::createGles(); + //Set global objects and functions. global->Set(String::New("Gl"), Gl); global->Set(String::New("Gles"), Gles); global->Set(String::New("Glu"), createGlu()); global->Set(String::New("Glut"), GlutFactory::createGlut(pargc, argv)); global->Set(String::New("log"), FunctionTemplate::New(log)); + global->Set(String::New("load"), FunctionTemplate::New(load)); Handle<Context> context = Context::New(NULL, global); - GlutFactory::glut_persistent_context = Persistent<Context>::New(context); - GlesFactory::gles_persistent_context = Persistent<Context>::New(context); + //TODO(nico): should find another way to set the right context when calling a func. + V8GL::context = Persistent<Context>::New(context); + GlutFactory::glut_persistent_context = V8GL::context; + GlesFactory::gles_persistent_context = V8GL::context; // Enter the new context so all the following operations take place // within it. @@ -83,32 +152,12 @@ bool V8GL::initialize(int* pargc, char** argv) { GlFactory::self_ = Persistent<Object>::New(Gl->NewInstance()); GlesFactory::self_ = Persistent<Object>::New(Gles->NewInstance()); - //Set the root_path for opening shader files with - //relative paths - //take path from executable - char* pch = strrchr(argv[0], '/'); - int last_index = pch - argv[0] +1; - char* tmp_exec_path = new char[last_index +1]; - strncpy(tmp_exec_path, argv[0], last_index); - tmp_exec_path[last_index] = '\0'; - - //take relative path from javascript file - char* p1ch = strrchr(argv[1], '/'); - int last_index1 = p1ch - argv[1] +1; - char* tmp_js_path = new char[last_index1 +1]; - strncpy(tmp_js_path, argv[1], last_index1); - tmp_js_path[last_index1] = '\0'; - - GlesFactory::root_path = new char[last_index + last_index1 +1]; - strcpy(GlesFactory::root_path, tmp_exec_path); - strcat(GlesFactory::root_path, tmp_js_path); - - delete[] tmp_exec_path; - delete[] tmp_js_path; + //Set (only once) the absolute path for the .js file being executed. + Utils::setRootPath(argv[0], argv[1]); + // Compile and run the script - if (!executeScript()) + if (!executeScript(scriptname)) return false; - return true; } v8-gl.cpp @@ -7,6 +7,7 @@ #include <v8-debug.h> +#include "utils.h" #include "glbindings/glbind.h" #include "glesbindings/glesbind.h" #include "glubindings/glubind.h" @@ -18,14 +19,11 @@ using namespace v8; class V8GL { public: - V8GL(Handle<String> script); - - bool initialize(int* pargc, char** argv); - bool executeScript(); - -private: - Handle<String> script_; + bool initialize(int* pargc, char** argv, string scriptname); + bool executeScript(string scriptname); + //keep a reference to the global context. + static Persistent<Context> context; }; #endif /* V8GL_H_ */ v8-gl.h f7b0d1a0f084bdd7cac7c1ea247c093e9085deaa philogb philogb@gmail.com http://github.com/philogb/v8-gl/commit/50431dcb7c4f1079c3ab5ec1c6fb3e1e772358a7 50431dcb7c4f1079c3ab5ec1c6fb3e1e772358a7 2009-10-16T13:13:08-07:00 2009-10-16T13:13:08-07:00 Added a load function to load js files. Clean up. 084310962a8794daaf53d5afe3b009204395394b philogb philogb@gmail.com