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<a href="../index.html">all files</a> / <a href="index.html">src/</a> Texture2D.js
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<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">import Texture from './Texture';
import glenum from './core/glenum';
import mathUtil from './math/util';
var isPowerOfTwo = mathUtil.isPowerOfTwo;
&nbsp;
/**
* @constructor clay.Texture2D
* @extends clay.Texture
*
* @example
* ...
* var mat = new clay.Material({
* shader: clay.shader.library.get('clay.phong', 'diffuseMap')
* });
* var diffuseMap = new clay.Texture2D();
* diffuseMap.load('assets/textures/diffuse.jpg');
* mat.set('diffuseMap', diffuseMap);
* ...
* diffuseMap.success(function () {
* // Wait for the diffuse texture loaded
* animation.on('frame', function (frameTime) {
* renderer.render(scene, camera);
* });
* });
*/
var Texture2D = Texture.extend(function () {
return /** @lends clay.Texture2D# */ {
/**
* @type {?HTMLImageElement|HTMLCanvasElemnet}
*/
image: null,
/**
* Pixels data. Will be ignored if image is set.
* @type {?Uint8Array|Float32Array}
*/
pixels: null,
/**
* @type {Array.&lt;Object&gt;}
* @example
* [{
* image: mipmap0,
* pixels: null
* }, {
* image: mipmap1,
* pixels: null
* }, ....]
*/
mipmaps: []
};
}, {
&nbsp;
textureType: 'texture2D',
&nbsp;
update: function (renderer) {
&nbsp;
var _gl = renderer.gl;
_gl.bindTexture(_gl.TEXTURE_2D, this._cache.get('webgl_texture'));
&nbsp;
this.updateCommon(renderer);
&nbsp;
var glFormat = this.format;
var glType = this.type;
&nbsp;
_gl.texParameteri(_gl.TEXTURE_2D, _gl.TEXTURE_WRAP_S, this.getAvailableWrapS());
_gl.texParameteri(_gl.TEXTURE_2D, _gl.TEXTURE_WRAP_T, this.getAvailableWrapT());
&nbsp;
_gl.texParameteri(_gl.TEXTURE_2D, _gl.TEXTURE_MAG_FILTER, this.getAvailableMagFilter());
_gl.texParameteri(_gl.TEXTURE_2D, _gl.TEXTURE_MIN_FILTER, this.getAvailableMinFilter());
&nbsp;
var anisotropicExt = renderer.getGLExtension('EXT_texture_filter_anisotropic');
if (anisotropicExt &amp;&amp; this.anisotropic &gt; 1) {
_gl.texParameterf(_gl.TEXTURE_2D, anisotropicExt.TEXTURE_MAX_ANISOTROPY_EXT, this.anisotropic);
}
&nbsp;
// Fallback to float type if browser don't have half float extension
if (glType === 36193) {
var halfFloatExt = renderer.getGLExtension('OES_texture_half_float');
<span class="missing-if-branch" title="if path not taken" >I</span>if (!halfFloatExt) {
<span class="cstat-no" title="statement not covered" > glType = glenum.FLOAT;</span>
}
}
&nbsp;
<span class="missing-if-branch" title="if path not taken" >I</span>if (this.mipmaps.length) {
var width = <span class="cstat-no" title="statement not covered" >this.width;</span>
var height = <span class="cstat-no" title="statement not covered" >this.height;</span>
<span class="cstat-no" title="statement not covered" > for (var i = 0; i &lt; this.mipmaps.length; i++) {</span>
var mipmap = <span class="cstat-no" title="statement not covered" >this.mipmaps[i];</span>
<span class="cstat-no" title="statement not covered" > this._updateTextureData(_gl, mipmap, i, width, height, glFormat, glType);</span>
<span class="cstat-no" title="statement not covered" > width /= 2;</span>
<span class="cstat-no" title="statement not covered" > height /= 2;</span>
}
}
else {
this._updateTextureData(_gl, this, 0, this.width, this.height, glFormat, glType);
&nbsp;
if (this.useMipmap &amp;&amp; !this.NPOT) {
_gl.generateMipmap(_gl.TEXTURE_2D);
}
}
&nbsp;
_gl.bindTexture(_gl.TEXTURE_2D, null);
},
&nbsp;
_updateTextureData: function (_gl, data, level, width, height, glFormat, glType) {
if (data.image) {
_gl.texImage2D(_gl.TEXTURE_2D, level, glFormat, glFormat, glType, data.image);
}
else {
// Can be used as a blank texture when writing render to texture(RTT)
<span class="missing-if-branch" title="if path not taken" >I</span>if (
glFormat &lt;= Texture.COMPRESSED_RGBA_S3TC_DXT5_EXT
&amp;&amp; glFormat &gt;= Texture.COMPRESSED_RGB_S3TC_DXT1_EXT
) {
<span class="cstat-no" title="statement not covered" > _gl.compressedTexImage2D(_gl.TEXTURE_2D, level, glFormat, width, height, 0, data.pixels);</span>
}
else {
// Is a render target if pixels is null
_gl.texImage2D(_gl.TEXTURE_2D, level, glFormat, width, height, 0, glFormat, glType, data.pixels);
}
}
},
&nbsp;
/**
* @param {clay.Renderer} renderer
* @memberOf clay.Texture2D.prototype
*/
generateMipmap: function (renderer) <span class="fstat-no" title="function not covered" >{</span>
var _gl = <span class="cstat-no" title="statement not covered" >renderer.gl;</span>
<span class="cstat-no" title="statement not covered" > if (this.useMipmap &amp;&amp; !this.NPOT) {</span>
<span class="cstat-no" title="statement not covered" > _gl.bindTexture(_gl.TEXTURE_2D, this._cache.get('webgl_texture'));</span>
<span class="cstat-no" title="statement not covered" > _gl.generateMipmap(_gl.TEXTURE_2D);</span>
}
},
&nbsp;
isPowerOfTwo: function () {
var width;
var height;
if (this.image) {
width = this.image.width;
height = this.image.height;
}
else {
width = this.width;
height = this.height;
}
return isPowerOfTwo(width) &amp;&amp; isPowerOfTwo(height);
},
&nbsp;
isRenderable: function () {
if (this.image) {
return this.image.nodeName === 'CANVAS'
|| this.image.nodeName === 'VIDEO'
|| this.image.complete;
}
else {
return !!(this.width &amp;&amp; this.height);
}
},
&nbsp;
bind: function (renderer) {
renderer.gl.bindTexture(renderer.gl.TEXTURE_2D, this.getWebGLTexture(renderer));
},
&nbsp;
unbind: function (renderer) <span class="fstat-no" title="function not covered" >{</span>
<span class="cstat-no" title="statement not covered" > renderer.gl.bindTexture(renderer.gl.TEXTURE_2D, null);</span>
},
&nbsp;
load: function (src, crossOrigin) {
var image = new Image();
<span class="missing-if-branch" title="if path not taken" >I</span>if (crossOrigin) {
<span class="cstat-no" title="statement not covered" > image.crossOrigin = crossOrigin;</span>
}
var self = this;
image.onload = function () {
self.dirty();
self.trigger('success', self);
image.onload = null;
};
image.onerror = function () <span class="fstat-no" title="function not covered" >{</span>
<span class="cstat-no" title="statement not covered" > self.trigger('error', self);</span>
<span class="cstat-no" title="statement not covered" > image.onerror = null;</span>
};
&nbsp;
image.src = src;
this.image = image;
&nbsp;
return this;
}
});
&nbsp;
Object.defineProperty(Texture2D.prototype, 'width', {
get: function () {
if (this.image) {
return this.image.width;
}
return this._width;
},
set: function (value) {
<span class="missing-if-branch" title="if path not taken" >I</span>if (this.image) {
<span class="cstat-no" title="statement not covered" > console.warn('Texture from image can\'t set width');</span>
}
else {
if (this._width !== value) {
this.dirty();
}
this._width = value;
}
}
});
Object.defineProperty(Texture2D.prototype, 'height', {
get: function () {
if (this.image) {
return this.image.height;
}
return this._height;
},
set: function (value) {
<span class="missing-if-branch" title="if path not taken" >I</span>if (this.image) {
<span class="cstat-no" title="statement not covered" > console.warn('Texture from image can\'t set height');</span>
}
else {
<span class="missing-if-branch" title="else path not taken" >E</span>if (this._height !== value) {
this.dirty();
}
this._height = value;
}
}
});
&nbsp;
export default Texture2D;
&nbsp;</pre></td></tr>
</table></pre>
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