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<a href="PIXI.BlurYFilter.html">BlurYFilter</a>
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<a href="PIXI.CanvasBuffer.html">CanvasBuffer</a>
</li>
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<a href="PIXI.CanvasGraphics.html">CanvasGraphics</a>
</li>
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<a href="PIXI.CanvasMaskManager.html">CanvasMaskManager</a>
</li>
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<a href="PIXI.CanvasRenderer.html">CanvasRenderer</a>
</li>
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<a href="PIXI.CanvasTinter.html">CanvasTinter</a>
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<a href="PIXI.Circle.html">Circle</a>
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<a href="PIXI.ColorMatrixFilter.html">ColorMatrixFilter</a>
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<a href="PIXI.ComplexPrimitiveShader.html">ComplexPrimitiveShader</a>
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<a href="PIXI.Event.html">Event</a>
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<a href="PIXI.EventTarget.html">EventTarget</a>
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<a href="PIXI.FilterBlock.html">FilterBlock</a>
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<a href="PIXI.FilterTexture.html">FilterTexture</a>
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<a href="PIXI.Graphics.html">Graphics</a>
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<a href="PIXI.InteractionData.html">InteractionData</a>
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<a href="PIXI.InteractionManager.html">InteractionManager</a>
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<a href="PIXI.JsonLoader.html">JsonLoader</a>
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<a href="PIXI.MovieClip.html">MovieClip</a>
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<a href="PIXI.RoundedRectangle.html">RoundedRectangle</a>
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<a href="PIXI.SepiaFilter.html">SepiaFilter</a>
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<a href="PIXI.SmartBlurFilter.html">SmartBlurFilter</a>
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<a href="PIXI.Spine.html">Spine</a>
</li>
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<a href="PIXI.SpineLoader.html">SpineLoader</a>
</li>
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<a href="PIXI.SpineTextureLoader.html">SpineTextureLoader</a>
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<a href="PIXI.Sprite.html">Sprite</a>
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<a href="PIXI.SpriteBatch.html">SpriteBatch</a>
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<a href="PIXI.SpriteSheetLoader.html">SpriteSheetLoader</a>
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<a href="PIXI.Stage.html">Stage</a>
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<a href="PIXI.Strip.html">Strip</a>
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<a href="PIXI.StripShader.html">StripShader</a>
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<a href="PIXI.TilingSprite.html">TilingSprite</a>
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<a href="PIXI.TiltShiftFilter.html">TiltShiftFilter</a>
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<h1 class="page-title">Source: d:/wamp/www/phaser/src/pixi/renderers/canvas/CanvasRenderer.js</h1>
<section>
<article>
<pre class="sunlight-highlight-javascript linenums">/**
* @author Mat Groves http://matgroves.com/ @Doormat23
*/
/**
* The CanvasRenderer draws the Stage and all its content onto a 2d canvas. This renderer should be used for browsers that do not support webGL.
* Don't forget to add the CanvasRenderer.view to your DOM or you will not see anything :)
*
* @class CanvasRenderer
* @constructor
* @param [width=800] {Number} the width of the canvas view
* @param [height=600] {Number} the height of the canvas view
* @param [options] {Object} The optional renderer parameters
* @param [options.view] {HTMLCanvasElement} the canvas to use as a view, optional
* @param [options.transparent=false] {Boolean} If the render view is transparent, default false
* @param [options.autoResize=false] {Boolean} If the render view is automatically resized, default false
* @param [options.resolution=1] {Number} the resolution of the renderer retina would be 2
* @param [options.clearBeforeRender=true] {Boolean} This sets if the CanvasRenderer will clear the canvas or not before the new render pass.
*/
PIXI.CanvasRenderer = function(width, height, options)
{
if(options)
{
for (var i in PIXI.defaultRenderOptions)
{
if (typeof options[i] === "undefined") options[i] = PIXI.defaultRenderOptions[i];
}
}
else
{
options = PIXI.defaultRenderOptions;
}
if(!PIXI.defaultRenderer)
{
PIXI.sayHello("Canvas");
PIXI.defaultRenderer = this;
}
/**
* The renderer type.
*
* @property type
* @type Number
*/
this.type = PIXI.CANVAS_RENDERER;
/**
* The resolution of the canvas.
*
* @property resolution
* @type Number
*/
this.resolution = options.resolution;
/**
* This sets if the CanvasRenderer will clear the canvas or not before the new render pass.
* If the Stage is NOT transparent Pixi will use a canvas sized fillRect operation every frame to set the canvas background color.
* If the Stage is transparent Pixi will use clearRect to clear the canvas every frame.
* Disable this by setting this to false. For example if your game has a canvas filling background image you often don't need this set.
*
* @property clearBeforeRender
* @type Boolean
* @default
*/
this.clearBeforeRender = options.clearBeforeRender;
/**
* Whether the render view is transparent
*
* @property transparent
* @type Boolean
*/
this.transparent = options.transparent;
/**
* Whether the render view should be resized automatically
*
* @property autoResize
* @type Boolean
*/
this.autoResize = options.autoResize || false;
/**
* The width of the canvas view
*
* @property width
* @type Number
* @default 800
*/
this.width = width || 800;
/**
* The height of the canvas view
*
* @property height
* @type Number
* @default 600
*/
this.height = height || 600;
this.width *= this.resolution;
this.height *= this.resolution;
/**
* The canvas element that everything is drawn to.
*
* @property view
* @type HTMLCanvasElement
*/
this.view = options.view || document.createElement( "canvas" );
/**
* The canvas 2d context that everything is drawn with
* @property context
* @type CanvasRenderingContext2D
*/
this.context = this.view.getContext( "2d", { alpha: this.transparent } );
/**
* Boolean flag controlling canvas refresh.
*
* @property refresh
* @type Boolean
*/
this.refresh = true;
this.view.width = this.width * this.resolution;
this.view.height = this.height * this.resolution;
/**
* Internal var.
*
* @property count
* @type Number
*/
this.count = 0;
/**
* Instance of a PIXI.CanvasMaskManager, handles masking when using the canvas renderer
* @property CanvasMaskManager
* @type CanvasMaskManager
*/
this.maskManager = new PIXI.CanvasMaskManager();
/**
* The render session is just a bunch of parameter used for rendering
* @property renderSession
* @type Object
*/
this.renderSession = {
context: this.context,
maskManager: this.maskManager,
scaleMode: null,
smoothProperty: null,
/**
* If true Pixi will Math.floor() x/y values when rendering, stopping pixel interpolation.
* Handy for crisp pixel art and speed on legacy devices.
*
*/
roundPixels: false
};
this.mapBlendModes();
this.resize(width, height);
if("imageSmoothingEnabled" in this.context)
this.renderSession.smoothProperty = "imageSmoothingEnabled";
else if("webkitImageSmoothingEnabled" in this.context)
this.renderSession.smoothProperty = "webkitImageSmoothingEnabled";
else if("mozImageSmoothingEnabled" in this.context)
this.renderSession.smoothProperty = "mozImageSmoothingEnabled";
else if("oImageSmoothingEnabled" in this.context)
this.renderSession.smoothProperty = "oImageSmoothingEnabled";
else if ("msImageSmoothingEnabled" in this.context)
this.renderSession.smoothProperty = "msImageSmoothingEnabled";
};
// constructor
PIXI.CanvasRenderer.prototype.constructor = PIXI.CanvasRenderer;
/**
* Renders the Stage to this canvas view
*
* @method render
* @param stage {Stage} the Stage element to be rendered
*/
PIXI.CanvasRenderer.prototype.render = function(stage)
{
stage.updateTransform();
this.context.setTransform(1,0,0,1,0,0);
this.context.globalAlpha = 1;
this.renderSession.currentBlendMode = PIXI.blendModes.NORMAL;
this.context.globalCompositeOperation = PIXI.blendModesCanvas[PIXI.blendModes.NORMAL];
if (navigator.isCocoonJS && this.view.screencanvas) {
this.context.fillStyle = "black";
this.context.clear();
}
if (this.clearBeforeRender)
{
if (this.transparent)
{
this.context.clearRect(0, 0, this.width, this.height);
}
else
{
this.context.fillStyle = stage.backgroundColorString;
this.context.fillRect(0, 0, this.width , this.height);
}
}
this.renderDisplayObject(stage);
// run interaction!
if(stage.interactive)
{
//need to add some events!
if(!stage._interactiveEventsAdded)
{
stage._interactiveEventsAdded = true;
stage.interactionManager.setTarget(this);
}
}
};
/**
* Removes everything from the renderer and optionally removes the Canvas DOM element.
*
* @method destroy
* @param [removeView=true] {boolean} Removes the Canvas element from the DOM.
*/
PIXI.CanvasRenderer.prototype.destroy = function(removeView)
{
if (typeof removeView === "undefined") { removeView = true; }
if (removeView && this.view.parent)
{
this.view.parent.removeChild(this.view);
}
this.view = null;
this.context = null;
this.maskManager = null;
this.renderSession = null;
};
/**
* Resizes the canvas view to the specified width and height
*
* @method resize
* @param width {Number} the new width of the canvas view
* @param height {Number} the new height of the canvas view
*/
PIXI.CanvasRenderer.prototype.resize = function(width, height)
{
this.width = width * this.resolution;
this.height = height * this.resolution;
this.view.width = this.width;
this.view.height = this.height;
if (this.autoResize) {
this.view.style.width = this.width / this.resolution + "px";
this.view.style.height = this.height / this.resolution + "px";
}
};
/**
* Renders a display object
*
* @method renderDisplayObject
* @param displayObject {DisplayObject} The displayObject to render
* @param context {CanvasRenderingContext2D} the context 2d method of the canvas
* @private
*/
PIXI.CanvasRenderer.prototype.renderDisplayObject = function(displayObject, context)
{
this.renderSession.context = context || this.context;
this.renderSession.resolution = this.resolution;
displayObject._renderCanvas(this.renderSession);
};
/**
* Maps Pixi blend modes to canvas blend modes.
*
* @method mapBlendModes
* @private
*/
PIXI.CanvasRenderer.prototype.mapBlendModes = function()
{
if(!PIXI.blendModesCanvas)
{
PIXI.blendModesCanvas = [];
if(PIXI.canUseNewCanvasBlendModes())
{
PIXI.blendModesCanvas[PIXI.blendModes.NORMAL] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.ADD] = "lighter"; //IS THIS OK???
PIXI.blendModesCanvas[PIXI.blendModes.MULTIPLY] = "multiply";
PIXI.blendModesCanvas[PIXI.blendModes.SCREEN] = "screen";
PIXI.blendModesCanvas[PIXI.blendModes.OVERLAY] = "overlay";
PIXI.blendModesCanvas[PIXI.blendModes.DARKEN] = "darken";
PIXI.blendModesCanvas[PIXI.blendModes.LIGHTEN] = "lighten";
PIXI.blendModesCanvas[PIXI.blendModes.COLOR_DODGE] = "color-dodge";
PIXI.blendModesCanvas[PIXI.blendModes.COLOR_BURN] = "color-burn";
PIXI.blendModesCanvas[PIXI.blendModes.HARD_LIGHT] = "hard-light";
PIXI.blendModesCanvas[PIXI.blendModes.SOFT_LIGHT] = "soft-light";
PIXI.blendModesCanvas[PIXI.blendModes.DIFFERENCE] = "difference";
PIXI.blendModesCanvas[PIXI.blendModes.EXCLUSION] = "exclusion";
PIXI.blendModesCanvas[PIXI.blendModes.HUE] = "hue";
PIXI.blendModesCanvas[PIXI.blendModes.SATURATION] = "saturation";
PIXI.blendModesCanvas[PIXI.blendModes.COLOR] = "color";
PIXI.blendModesCanvas[PIXI.blendModes.LUMINOSITY] = "luminosity";
}
else
{
// this means that the browser does not support the cool new blend modes in canvas "cough" ie "cough"
PIXI.blendModesCanvas[PIXI.blendModes.NORMAL] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.ADD] = "lighter"; //IS THIS OK???
PIXI.blendModesCanvas[PIXI.blendModes.MULTIPLY] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.SCREEN] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.OVERLAY] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.DARKEN] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.LIGHTEN] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.COLOR_DODGE] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.COLOR_BURN] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.HARD_LIGHT] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.SOFT_LIGHT] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.DIFFERENCE] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.EXCLUSION] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.HUE] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.SATURATION] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.COLOR] = "source-over";
PIXI.blendModesCanvas[PIXI.blendModes.LUMINOSITY] = "source-over";
}
}
};
</pre>
</article>
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