| function WImageElement(data, globalData, comp) { |
| this.assetData = globalData.getAssetData(data.refId); |
| this.img = new Image(); |
| this.img.crossOrigin = 'anonymous'; |
| this.gl = globalData.canvasContext; |
| this.initElement(data,globalData,comp); |
| this.globalData.addPendingElement(); |
| |
| var vsh = get_shader('image_layer_shader_vert'); |
| |
| var fsh = get_shader('image_layer_shader_frag'); |
| |
| var gl = this.gl; |
| var vertexShader = WebGLProgramFactory.createShader(gl, gl.VERTEX_SHADER, vsh); |
| var fragmentShader = WebGLProgramFactory.createShader(gl, gl.FRAGMENT_SHADER, fsh); |
| this.program = WebGLProgramFactory.createProgram(gl, vertexShader, fragmentShader); |
| this.positionAttributeLocation = gl.getAttribLocation(this.program, "a_position"); |
| gl.enableVertexAttribArray(this.positionAttributeLocation); |
| this.mat4UniformLoc = gl.getUniformLocation(this.program, "uMatrix"); |
| this.localmat4UniformLoc = gl.getUniformLocation(this.program, "localMatrix"); |
| this.texcoordLocation = gl.getAttribLocation(this.program, "a_texCoord"); |
| |
| var localMatrix = new Matrix(); |
| localMatrix.scale(this.assetData.w, this.assetData.h); |
| gl.useProgram(this.program); |
| gl.uniformMatrix4fv(this.localmat4UniformLoc, false, localMatrix.props); |
| gl.vertexAttribPointer(this.positionAttributeLocation, 2, gl.FLOAT, false, 0, 0); |
| |
| this.texture = textureFactory(gl); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, |
| new Uint8Array([0, 0, 0, 0])); |
| gl.enableVertexAttribArray(this.texcoordLocation); |
| gl.vertexAttribPointer(this.texcoordLocation, 2, gl.FLOAT, false, 0, 0); |
| this._finalTexture = this.texture; |
| |
| } |
| |
| extendPrototype([BaseElement, TransformElement, WebGLBaseElement, HierarchyElement, FrameElement, RenderableElement], WImageElement); |
| |
| WImageElement.prototype.initElement = SVGShapeElement.prototype.initElement; |
| |
| WImageElement.prototype.prepareFrame = IImageElement.prototype.prepareFrame; |
| |
| WImageElement.prototype.imageLoaded = function() { |
| |
| var gl = this.gl; |
| var image = this.img; |
| |
| gl.bindTexture(gl.TEXTURE_2D, this.texture); |
| // Upload the image into the texture. |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, image); |
| // Turn on the teccord attribute |
| |
| |
| this.globalData.elementLoaded(); |
| }; |
| |
| WImageElement.prototype.imageFailed = function() { |
| |
| } |
| |
| WImageElement.prototype.createContent = function(){ |
| var img = this.img; |
| img.addEventListener('load', this.imageLoaded.bind(this), false); |
| img.addEventListener('error', this.imageFailed.bind(this), false); |
| var assetPath = this.globalData.getAssetsPath(this.assetData); |
| img.src = assetPath; |
| |
| }; |
| |
| WImageElement.prototype.renderInnerContent = function() { |
| |
| var gl = this.gl; |
| gl.bindTexture(gl.TEXTURE_2D, this.texture); |
| this.renderEffects(); |
| this.renderLayer(); |
| // |
| }; |
| |
| WImageElement.prototype.getSize = function() { |
| return this.assetData; |
| } |