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<h1 class="page-title">Source: gameobjects/RenderTexture.js</h1>
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<pre class="sunlight-highlight-javascript linenums">/**
* @author Richard Davey &lt;rich@photonstorm.com>
* @copyright 2013 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
Updated documentation.
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* A RenderTexture is a special texture that allows any displayObject to be rendered to it.
Lots of doc updates!
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* @class Phaser.RenderTexture
* @constructor
* @param {Phaser.Game} game - Current game instance.
* @param {string} key - Asset key for the render texture.
* @param {number} width - the width of the render texture.
* @param {number} height - the height of the render texture.
*/
Phaser.RenderTexture = function (game, key, width, height) {
Updated documentation.
2013-11-28 15:57:09 +00:00
/**
* @property {Phaser.Game} game - A reference to the currently running game.
*/
this.game = game;
Lots of doc updates!
2013-10-25 15:54:40 +00:00
Updated documentation.
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/**
Lots of doc updates!
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* @property {string} name - the name of the object.
Updated documentation.
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*/
Lots of doc updates!
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this.name = key;
Updated documentation.
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PIXI.EventTarget.call(this);
Lots of doc updates!
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Updated documentation.
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/**
* @property {number} width - the width.
Lots of doc updates!
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*/
Updated documentation.
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this.width = width || 100;
/**
* @property {number} height - the height.
Lots of doc updates!
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*/
Updated documentation.
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this.height = height || 100;
Lots of doc updates!
2013-10-25 15:54:40 +00:00
Updated documentation.
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/**
* @property {PIXI.mat3} indetityMatrix - Matrix object.
*/
this.indetityMatrix = PIXI.mat3.create();
Lots of doc updates!
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Updated documentation.
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/**
* @property {PIXI.Rectangle} frame - The frame for this texture.
Lots of doc updates!
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*/
Updated documentation.
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this.frame = new PIXI.Rectangle(0, 0, this.width, this.height);
Lots of doc updates!
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Updated documentation.
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/**
* @property {number} type - Base Phaser object type.
Lots of doc updates!
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*/
Updated documentation.
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this.type = Phaser.RENDERTEXTURE;
this._tempPoint = { x: 0, y: 0 };
if (PIXI.gl)
{
this.initWebGL();
}
else
{
this.initCanvas();
}
Lots of doc updates!
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};
Updated documentation.
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Phaser.RenderTexture.prototype = Object.create(PIXI.Texture.prototype);
Phaser.RenderTexture.prototype.constructor = PIXI.RenderTexture;
/**
* This function will draw the display object to the texture. If the display object is a Group or has children it will
* draw all children as well.
*
* @method render
* @param {DisplayObject} displayObject - The display object to render this texture on.
* @param {Phaser.Point} [position] - Where to draw the display object.
* @param {boolean} [clear=false] - If true the texture will be cleared before the displayObject is drawn.
*/
Phaser.RenderTexture.prototype.render = function(displayObject, position, clear) {
if (typeof position === 'undefined') { position = false; }
if (typeof clear === 'undefined') { clear = false; }
if (displayObject instanceof Phaser.Group)
{
displayObject = displayObject._container;
}
if (PIXI.gl)
{
this.renderWebGL(displayObject, position, clear);
}
else
{
this.renderCanvas(displayObject, position, clear);
}
}
/**
* This function will draw the display object to the texture at the given x/y coordinates.
* If the display object is a Group or has children it will draw all children as well.
*
* @method renderXY
* @param {DisplayObject} displayObject - The display object to render this texture on.
* @param {number} x - The x coordinate to draw the display object at.
* @param {number} y - The y coordinate to draw the display object at.
* @param {boolean} [clear=false] - If true the texture will be cleared before the displayObject is drawn.
*/
Phaser.RenderTexture.prototype.renderXY = function(displayObject, x, y, clear) {
this._tempPoint.x = x;
this._tempPoint.y = y;
this.render(displayObject, this._tempPoint, clear);
}
/**
* Initializes the webgl data for this texture
*
* @method initWebGL
* @private
*/
Phaser.RenderTexture.prototype.initWebGL = function()
{
var gl = PIXI.gl;
this.glFramebuffer = gl.createFramebuffer();
gl.bindFramebuffer(gl.FRAMEBUFFER, this.glFramebuffer );
this.glFramebuffer.width = this.width;
this.glFramebuffer.height = this.height;
this.baseTexture = new PIXI.BaseTexture();
this.baseTexture.width = this.width;
this.baseTexture.height = this.height;
this.baseTexture._glTexture = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, this.baseTexture._glTexture);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, this.width, this.height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
this.baseTexture.isRender = true;
gl.bindFramebuffer(gl.FRAMEBUFFER, this.glFramebuffer );
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, this.baseTexture._glTexture, 0);
// create a projection matrix..
this.projection = new PIXI.Point(this.width/2 , -this.height/2);
// set the correct render function..
// this.render = this.renderWebGL;
}
Phaser.RenderTexture.prototype.resize = function(width, height)
{
this.width = width;
this.height = height;
if(PIXI.gl)
{
this.projection.x = this.width/2
this.projection.y = -this.height/2;
var gl = PIXI.gl;
gl.bindTexture(gl.TEXTURE_2D, this.baseTexture._glTexture);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, this.width, this.height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
}
else
{
this.frame.width = this.width
this.frame.height = this.height;
this.renderer.resize(this.width, this.height);
}
}
/**
* Initializes the canvas data for this texture
*
* @method initCanvas
* @private
*/
Phaser.RenderTexture.prototype.initCanvas = function()
{
this.renderer = new PIXI.CanvasRenderer(this.width, this.height, null, 0);
this.baseTexture = new PIXI.BaseTexture(this.renderer.view);
this.frame = new PIXI.Rectangle(0, 0, this.width, this.height);
// this.render = this.renderCanvas;
}
/**
* This function will draw the display object to the texture.
*
* @method renderWebGL
* @param displayObject {DisplayObject} The display object to render this texture on
* @param clear {Boolean} If true the texture will be cleared before the displayObject is drawn
* @private
*/
Phaser.RenderTexture.prototype.renderWebGL = function(displayObject, position, clear)
{
var gl = PIXI.gl;
// enable the alpha color mask..
gl.colorMask(true, true, true, true);
gl.viewport(0, 0, this.width, this.height);
gl.bindFramebuffer(gl.FRAMEBUFFER, this.glFramebuffer );
if (clear)
{
gl.clearColor(0,0,0, 0);
gl.clear(gl.COLOR_BUFFER_BIT);
}
// THIS WILL MESS WITH HIT TESTING!
var children = displayObject.children;
//TODO -? create a new one??? dont think so!
var originalWorldTransform = displayObject.worldTransform;
displayObject.worldTransform = PIXI.mat3.create();//sthis.indetityMatrix;
// modify to flip...
displayObject.worldTransform[4] = -1;
displayObject.worldTransform[5] = this.projection.y * -2;
if (position)
{
displayObject.worldTransform[2] = position.x;
displayObject.worldTransform[5] -= position.y;
}
PIXI.visibleCount++;
displayObject.vcount = PIXI.visibleCount;
for (var i = 0, j = children.length; i &lt; j; i++)
{
children[i].updateTransform();
}
var renderGroup = displayObject.__renderGroup;
if (renderGroup)
{
if (displayObject == renderGroup.root)
{
renderGroup.render(this.projection, this.glFramebuffer);
}
else
{
renderGroup.renderSpecific(displayObject, this.projection, this.glFramebuffer);
}
}
else
{
if (!this.renderGroup)
{
this.renderGroup = new PIXI.WebGLRenderGroup(gl);
}
this.renderGroup.setRenderable(displayObject);
this.renderGroup.render(this.projection, this.glFramebuffer);
}
displayObject.worldTransform = originalWorldTransform;
}
/**
* This function will draw the display object to the texture.
*
* @method renderCanvas
* @param displayObject {DisplayObject} The display object to render this texture on
* @param clear {Boolean} If true the texture will be cleared before the displayObject is drawn
* @private
*/
Phaser.RenderTexture.prototype.renderCanvas = function(displayObject, position, clear)
{
var children = displayObject.children;
displayObject.worldTransform = PIXI.mat3.create();
if (position)
{
displayObject.worldTransform[2] = position.x;
displayObject.worldTransform[5] = position.y;
}
for (var i = 0, j = children.length; i &lt; j; i++)
{
children[i].updateTransform();
}
if (clear)
{
this.renderer.context.clearRect(0, 0, this.width, this.height);
}
this.renderer.renderDisplayObject(displayObject);
this.renderer.context.setTransform(1, 0, 0, 1, 0, 0);
// PIXI.texturesToUpdate.push(this.baseTexture);
}
Lots of doc updates!
2013-10-25 15:54:40 +00:00
</pre>
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Phaser Copyright © 2012-2013 Photon Storm Ltd.
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Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-dev</a>
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