mirror of
https://github.com/photonstorm/phaser
synced 2024-12-25 12:33:38 +00:00
759 lines
23 KiB
JavaScript
759 lines
23 KiB
JavaScript
/**
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* @author Richard Davey <rich@photonstorm.com>
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* @author Felipe Alfonso <@bitnenfer>
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* @copyright 2019 Photon Storm Ltd.
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* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
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*/
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var Class = require('../../utils/Class');
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var Utils = require('./Utils');
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/**
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* @classdesc
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* WebGLPipeline is a class that describes the way elements will be rendererd
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* in WebGL, specially focused on batching vertices (batching is not provided).
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* Pipelines are mostly used for describing 2D rendering passes but it's
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* flexible enough to be used for any type of rendering including 3D.
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* Internally WebGLPipeline will handle things like compiling shaders,
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* creating vertex buffers, assigning primitive topology and binding
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* vertex attributes.
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*
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* The config properties are:
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* - game: Current game instance.
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* - renderer: Current WebGL renderer.
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* - gl: Current WebGL context.
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* - topology: This indicates how the primitives are rendered. The default value is GL_TRIANGLES.
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* Here is the full list of rendering primitives (https://developer.mozilla.org/en-US/docs/Web/API/WebGL_API/Constants).
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* - vertShader: Source for vertex shader as a string.
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* - fragShader: Source for fragment shader as a string.
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* - vertexCapacity: The amount of vertices that shall be allocated
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* - vertexSize: The size of a single vertex in bytes.
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* - vertices: An optional buffer of vertices
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* - attributes: An array describing the vertex attributes
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*
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* The vertex attributes properties are:
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* - name : String - Name of the attribute in the vertex shader
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* - size : integer - How many components describe the attribute. For ex: vec3 = size of 3, float = size of 1
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* - type : GLenum - WebGL type (gl.BYTE, gl.SHORT, gl.UNSIGNED_BYTE, gl.UNSIGNED_SHORT, gl.FLOAT)
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* - normalized : boolean - Is the attribute normalized
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* - offset : integer - The offset in bytes to the current attribute in the vertex. Equivalent to offsetof(vertex, attrib) in C
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* Here you can find more information of how to describe an attribute:
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* - https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/vertexAttribPointer
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*
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* @class WebGLPipeline
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* @memberof Phaser.Renderer.WebGL
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* @constructor
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* @since 3.0.0
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*
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* @param {object} config - The configuration object for this WebGL Pipeline, as described above.
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*/
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var WebGLPipeline = new Class({
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initialize:
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function WebGLPipeline (config)
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{
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/**
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* Name of the Pipeline. Used for identifying
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#name
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* @type {string}
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* @since 3.0.0
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*/
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this.name = 'WebGLPipeline';
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/**
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* The Game which owns this WebGL Pipeline.
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#game
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* @type {Phaser.Game}
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* @since 3.0.0
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*/
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this.game = config.game;
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/**
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* The canvas which this WebGL Pipeline renders to.
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#view
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* @type {HTMLCanvasElement}
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* @since 3.0.0
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*/
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this.view = config.game.canvas;
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/**
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* Used to store the current game resolution
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#resolution
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* @type {number}
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* @since 3.0.0
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*/
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this.resolution = 1;
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/**
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* Width of the current viewport
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#width
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* @type {number}
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* @since 3.0.0
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*/
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this.width = 0;
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/**
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* Height of the current viewport
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#height
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* @type {number}
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* @since 3.0.0
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*/
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this.height = 0;
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/**
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* The WebGL context this WebGL Pipeline uses.
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#gl
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* @type {WebGLRenderingContext}
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* @since 3.0.0
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*/
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this.gl = config.gl;
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/**
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* How many vertices have been fed to the current pipeline.
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#vertexCount
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* @type {number}
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* @default 0
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* @since 3.0.0
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*/
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this.vertexCount = 0;
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/**
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* The limit of vertices that the pipeline can hold
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#vertexCapacity
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* @type {integer}
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* @since 3.0.0
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*/
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this.vertexCapacity = config.vertexCapacity;
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/**
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* The WebGL Renderer which owns this WebGL Pipeline.
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#renderer
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* @type {Phaser.Renderer.WebGL.WebGLRenderer}
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* @since 3.0.0
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*/
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this.renderer = config.renderer;
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/**
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* Raw byte buffer of vertices.
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#vertexData
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* @type {ArrayBuffer}
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* @since 3.0.0
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*/
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this.vertexData = (config.vertices ? config.vertices : new ArrayBuffer(config.vertexCapacity * config.vertexSize));
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/**
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* The handle to a WebGL vertex buffer object.
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#vertexBuffer
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* @type {WebGLBuffer}
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* @since 3.0.0
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*/
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this.vertexBuffer = this.renderer.createVertexBuffer((config.vertices ? config.vertices : this.vertexData.byteLength), this.gl.STREAM_DRAW);
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/**
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* The handle to a WebGL program
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#program
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* @type {WebGLProgram}
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* @since 3.0.0
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*/
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this.program = this.renderer.createProgram(config.vertShader, config.fragShader);
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/**
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* Array of objects that describe the vertex attributes
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#attributes
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* @type {object}
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* @since 3.0.0
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*/
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this.attributes = config.attributes;
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/**
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* The size in bytes of the vertex
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#vertexSize
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* @type {integer}
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* @since 3.0.0
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*/
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this.vertexSize = config.vertexSize;
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/**
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* The primitive topology which the pipeline will use to submit draw calls
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#topology
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* @type {integer}
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* @since 3.0.0
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*/
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this.topology = config.topology;
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/**
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* Uint8 view to the vertex raw buffer. Used for uploading vertex buffer resources
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* to the GPU.
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#bytes
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* @type {Uint8Array}
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* @since 3.0.0
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*/
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this.bytes = new Uint8Array(this.vertexData);
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/**
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* This will store the amount of components of 32 bit length
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#vertexComponentCount
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* @type {integer}
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* @since 3.0.0
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*/
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this.vertexComponentCount = Utils.getComponentCount(config.attributes, this.gl);
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/**
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* Indicates if the current pipeline is flushing the contents to the GPU.
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* When the variable is set the flush function will be locked.
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#flushLocked
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* @type {boolean}
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* @since 3.1.0
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*/
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this.flushLocked = false;
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/**
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* Indicates if the current pipeline is active or not for this frame only.
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* Reset in the onRender method.
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*
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* @name Phaser.Renderer.WebGL.WebGLPipeline#active
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* @type {boolean}
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* @since 3.10.0
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*/
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this.active = false;
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},
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/**
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* Called when the Game has fully booted and the Renderer has finished setting up.
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*
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* By this stage all Game level systems are now in place and you can perform any final
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* tasks that the pipeline may need that relied on game systems such as the Texture Manager.
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*
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* @method Phaser.Renderer.WebGL.WebGLPipeline#boot
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* @since 3.11.0
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*/
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boot: function ()
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{
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},
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/**
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* Adds a description of vertex attribute to the pipeline
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*
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* @method Phaser.Renderer.WebGL.WebGLPipeline#addAttribute
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* @since 3.2.0
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*
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* @param {string} name - Name of the vertex attribute
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* @param {integer} size - Vertex component size
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* @param {integer} type - Type of the attribute
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* @param {boolean} normalized - Is the value normalized to a range
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* @param {integer} offset - Byte offset to the beginning of the first element in the vertex
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*
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* @return {this} This WebGLPipeline instance.
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*/
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addAttribute: function (name, size, type, normalized, offset)
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{
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this.attributes.push({
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name: name,
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size: size,
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type: this.renderer.glFormats[type],
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normalized: normalized,
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offset: offset
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});
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return this;
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},
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/**
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* Check if the current batch of vertices is full.
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*
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* @method Phaser.Renderer.WebGL.WebGLPipeline#shouldFlush
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* @since 3.0.0
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*
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* @return {boolean} `true` if the current batch should be flushed, otherwise `false`.
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*/
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shouldFlush: function ()
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{
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return (this.vertexCount >= this.vertexCapacity);
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},
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/**
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* Resizes the properties used to describe the viewport
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*
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* @method Phaser.Renderer.WebGL.WebGLPipeline#resize
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* @since 3.0.0
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*
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* @param {number} width - The new width of this WebGL Pipeline.
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* @param {number} height - The new height of this WebGL Pipeline.
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* @param {number} resolution - The resolution this WebGL Pipeline should be resized to.
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*
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* @return {this} This WebGLPipeline instance.
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*/
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resize: function (width, height, resolution)
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{
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this.width = width * resolution;
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this.height = height * resolution;
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this.resolution = resolution;
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return this;
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},
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/**
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* Binds the pipeline resources, including programs, vertex buffers and binds attributes
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*
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* @method Phaser.Renderer.WebGL.WebGLPipeline#bind
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* @since 3.0.0
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*
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* @return {this} This WebGLPipeline instance.
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*/
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bind: function ()
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{
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var gl = this.gl;
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var vertexBuffer = this.vertexBuffer;
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var attributes = this.attributes;
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var program = this.program;
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var renderer = this.renderer;
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var vertexSize = this.vertexSize;
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renderer.setProgram(program);
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renderer.setVertexBuffer(vertexBuffer);
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for (var index = 0; index < attributes.length; ++index)
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{
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var element = attributes[index];
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var location = gl.getAttribLocation(program, element.name);
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if (location >= 0)
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{
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gl.enableVertexAttribArray(location);
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gl.vertexAttribPointer(location, element.size, element.type, element.normalized, vertexSize, element.offset);
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}
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else if (location !== -1)
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{
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gl.disableVertexAttribArray(location);
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}
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}
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return this;
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},
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/**
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* Set whenever this WebGL Pipeline is bound to a WebGL Renderer.
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*
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* This method is called every time the WebGL Pipeline is attempted to be bound, even if it already is the current pipeline.
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*
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* @method Phaser.Renderer.WebGL.WebGLPipeline#onBind
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* @since 3.0.0
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*
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* @return {this} This WebGLPipeline instance.
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*/
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onBind: function ()
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{
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// This is for updating uniform data it's called on each bind attempt.
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return this;
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},
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/**
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* Called before each frame is rendered, but after the canvas has been cleared.
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*
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* @method Phaser.Renderer.WebGL.WebGLPipeline#onPreRender
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* @since 3.0.0
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*
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* @return {this} This WebGLPipeline instance.
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*/
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onPreRender: function ()
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{
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// called once every frame
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return this;
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},
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/**
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* Called before a Scene's Camera is rendered.
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*
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* @method Phaser.Renderer.WebGL.WebGLPipeline#onRender
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* @since 3.0.0
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*
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* @param {Phaser.Scene} scene - The Scene being rendered.
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* @param {Phaser.Cameras.Scene2D.Camera} camera - The Scene Camera being rendered with.
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*
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* @return {this} This WebGLPipeline instance.
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*/
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onRender: function ()
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{
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// called for each camera
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return this;
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},
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/**
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* Called after each frame has been completely rendered and snapshots have been taken.
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*
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* @method Phaser.Renderer.WebGL.WebGLPipeline#onPostRender
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* @since 3.0.0
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*
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* @return {this} This WebGLPipeline instance.
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*/
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onPostRender: function ()
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{
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// called once every frame
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return this;
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},
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/**
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* Uploads the vertex data and emits a draw call
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* for the current batch of vertices.
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*
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* @method Phaser.Renderer.WebGL.WebGLPipeline#flush
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* @since 3.0.0
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*
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* @return {this} This WebGLPipeline instance.
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*/
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flush: function ()
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{
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if (this.flushLocked) { return this; }
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this.flushLocked = true;
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var gl = this.gl;
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var vertexCount = this.vertexCount;
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var topology = this.topology;
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var vertexSize = this.vertexSize;
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if (vertexCount === 0)
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{
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this.flushLocked = false;
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return;
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}
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gl.bufferSubData(gl.ARRAY_BUFFER, 0, this.bytes.subarray(0, vertexCount * vertexSize));
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gl.drawArrays(topology, 0, vertexCount);
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this.vertexCount = 0;
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this.flushLocked = false;
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return this;
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},
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/**
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* Removes all object references in this WebGL Pipeline and removes its program from the WebGL context.
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*
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* @method Phaser.Renderer.WebGL.WebGLPipeline#destroy
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* @since 3.0.0
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*
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* @return {this} This WebGLPipeline instance.
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*/
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destroy: function ()
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{
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var gl = this.gl;
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gl.deleteProgram(this.program);
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gl.deleteBuffer(this.vertexBuffer);
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delete this.program;
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delete this.vertexBuffer;
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delete this.gl;
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return this;
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},
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/**
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* Set a uniform value of the current pipeline program.
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*
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* @method Phaser.Renderer.WebGL.WebGLPipeline#setFloat1
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* @since 3.2.0
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*
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* @param {string} name - The name of the uniform to look-up and modify.
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* @param {number} x - The new value of the `float` uniform.
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*
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* @return {this} This WebGLPipeline instance.
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*/
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setFloat1: function (name, x)
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{
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this.renderer.setFloat1(this.program, name, x);
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return this;
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},
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/**
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* Set a uniform value of the current pipeline program.
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*
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* @method Phaser.Renderer.WebGL.WebGLPipeline#setFloat2
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* @since 3.2.0
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*
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* @param {string} name - The name of the uniform to look-up and modify.
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* @param {number} x - The new X component of the `vec2` uniform.
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* @param {number} y - The new Y component of the `vec2` uniform.
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*
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* @return {this} This WebGLPipeline instance.
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*/
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setFloat2: function (name, x, y)
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{
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this.renderer.setFloat2(this.program, name, x, y);
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return this;
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},
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/**
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* Set a uniform value of the current pipeline program.
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*
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* @method Phaser.Renderer.WebGL.WebGLPipeline#setFloat3
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* @since 3.2.0
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*
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* @param {string} name - The name of the uniform to look-up and modify.
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* @param {number} x - The new X component of the `vec3` uniform.
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* @param {number} y - The new Y component of the `vec3` uniform.
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* @param {number} z - The new Z component of the `vec3` uniform.
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*
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* @return {this} This WebGLPipeline instance.
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*/
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setFloat3: function (name, x, y, z)
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{
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this.renderer.setFloat3(this.program, name, x, y, z);
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return this;
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},
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/**
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* Set a uniform value of the current pipeline program.
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*
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* @method Phaser.Renderer.WebGL.WebGLPipeline#setFloat4
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* @since 3.2.0
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*
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* @param {string} name - The name of the uniform to look-up and modify.
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* @param {number} x - X component of the uniform
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* @param {number} y - Y component of the uniform
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* @param {number} z - Z component of the uniform
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* @param {number} w - W component of the uniform
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*
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* @return {this} This WebGLPipeline instance.
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*/
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setFloat4: function (name, x, y, z, w)
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{
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this.renderer.setFloat4(this.program, name, x, y, z, w);
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return this;
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},
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/**
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* Set a uniform value of the current pipeline program.
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*
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|
* @method Phaser.Renderer.WebGL.WebGLPipeline#setFloat1v
|
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* @since 3.13.0
|
|
*
|
|
* @param {string} name - The name of the uniform to look-up and modify.
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* @param {Float32Array} arr - The new value to be used for the uniform variable.
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*
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|
* @return {this} This WebGLPipeline instance.
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|
*/
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setFloat1v: function (name, arr)
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|
{
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|
this.renderer.setFloat1v(this.program, name, arr);
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|
|
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return this;
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},
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|
|
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/**
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|
* Set a uniform value of the current pipeline program.
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|
*
|
|
* @method Phaser.Renderer.WebGL.WebGLPipeline#setFloat2v
|
|
* @since 3.13.0
|
|
*
|
|
* @param {string} name - The name of the uniform to look-up and modify.
|
|
* @param {Float32Array} arr - The new value to be used for the uniform variable.
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|
*
|
|
* @return {this} This WebGLPipeline instance.
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|
*/
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setFloat2v: function (name, arr)
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|
{
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|
this.renderer.setFloat2v(this.program, name, arr);
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|
|
|
return this;
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|
},
|
|
|
|
/**
|
|
* Set a uniform value of the current pipeline program.
|
|
*
|
|
* @method Phaser.Renderer.WebGL.WebGLPipeline#setFloat3v
|
|
* @since 3.13.0
|
|
*
|
|
* @param {string} name - The name of the uniform to look-up and modify.
|
|
* @param {Float32Array} arr - The new value to be used for the uniform variable.
|
|
*
|
|
* @return {this} This WebGLPipeline instance.
|
|
*/
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|
setFloat3v: function (name, arr)
|
|
{
|
|
this.renderer.setFloat3v(this.program, name, arr);
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Set a uniform value of the current pipeline program.
|
|
*
|
|
* @method Phaser.Renderer.WebGL.WebGLPipeline#setFloat4v
|
|
* @since 3.13.0
|
|
*
|
|
* @param {string} name - The name of the uniform to look-up and modify.
|
|
* @param {Float32Array} arr - The new value to be used for the uniform variable.
|
|
*
|
|
* @return {this} This WebGLPipeline instance.
|
|
*/
|
|
setFloat4v: function (name, arr)
|
|
{
|
|
this.renderer.setFloat4v(this.program, name, arr);
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Set a uniform value of the current pipeline program.
|
|
*
|
|
* @method Phaser.Renderer.WebGL.WebGLPipeline#setInt1
|
|
* @since 3.2.0
|
|
*
|
|
* @param {string} name - The name of the uniform to look-up and modify.
|
|
* @param {integer} x - The new value of the `int` uniform.
|
|
*
|
|
* @return {this} This WebGLPipeline instance.
|
|
*/
|
|
setInt1: function (name, x)
|
|
{
|
|
this.renderer.setInt1(this.program, name, x);
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Set a uniform value of the current pipeline program.
|
|
*
|
|
* @method Phaser.Renderer.WebGL.WebGLPipeline#setInt2
|
|
* @since 3.2.0
|
|
*
|
|
* @param {string} name - The name of the uniform to look-up and modify.
|
|
* @param {integer} x - The new X component of the `ivec2` uniform.
|
|
* @param {integer} y - The new Y component of the `ivec2` uniform.
|
|
*
|
|
* @return {this} This WebGLPipeline instance.
|
|
*/
|
|
setInt2: function (name, x, y)
|
|
{
|
|
this.renderer.setInt2(this.program, name, x, y);
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Set a uniform value of the current pipeline program.
|
|
*
|
|
* @method Phaser.Renderer.WebGL.WebGLPipeline#setInt3
|
|
* @since 3.2.0
|
|
*
|
|
* @param {string} name - The name of the uniform to look-up and modify.
|
|
* @param {integer} x - The new X component of the `ivec3` uniform.
|
|
* @param {integer} y - The new Y component of the `ivec3` uniform.
|
|
* @param {integer} z - The new Z component of the `ivec3` uniform.
|
|
*
|
|
* @return {this} This WebGLPipeline instance.
|
|
*/
|
|
setInt3: function (name, x, y, z)
|
|
{
|
|
this.renderer.setInt3(this.program, name, x, y, z);
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Set a uniform value of the current pipeline program.
|
|
*
|
|
* @method Phaser.Renderer.WebGL.WebGLPipeline#setInt4
|
|
* @since 3.2.0
|
|
*
|
|
* @param {string} name - The name of the uniform to look-up and modify.
|
|
* @param {integer} x - X component of the uniform
|
|
* @param {integer} y - Y component of the uniform
|
|
* @param {integer} z - Z component of the uniform
|
|
* @param {integer} w - W component of the uniform
|
|
*
|
|
* @return {this} This WebGLPipeline instance.
|
|
*/
|
|
setInt4: function (name, x, y, z, w)
|
|
{
|
|
this.renderer.setInt4(this.program, name, x, y, z, w);
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Set a uniform value of the current pipeline program.
|
|
*
|
|
* @method Phaser.Renderer.WebGL.WebGLPipeline#setMatrix2
|
|
* @since 3.2.0
|
|
*
|
|
* @param {string} name - The name of the uniform to look-up and modify.
|
|
* @param {boolean} transpose - Whether to transpose the matrix. Should be `false`.
|
|
* @param {Float32Array} matrix - The new values for the `mat2` uniform.
|
|
*
|
|
* @return {this} This WebGLPipeline instance.
|
|
*/
|
|
setMatrix2: function (name, transpose, matrix)
|
|
{
|
|
this.renderer.setMatrix2(this.program, name, transpose, matrix);
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Set a uniform value of the current pipeline program.
|
|
*
|
|
* @method Phaser.Renderer.WebGL.WebGLPipeline#setMatrix3
|
|
* @since 3.2.0
|
|
*
|
|
* @param {string} name - The name of the uniform to look-up and modify.
|
|
* @param {boolean} transpose - Whether to transpose the matrix. Should be `false`.
|
|
* @param {Float32Array} matrix - The new values for the `mat3` uniform.
|
|
*
|
|
* @return {this} This WebGLPipeline instance.
|
|
*/
|
|
setMatrix3: function (name, transpose, matrix)
|
|
{
|
|
this.renderer.setMatrix3(this.program, name, transpose, matrix);
|
|
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* Set a uniform value of the current pipeline program.
|
|
*
|
|
* @method Phaser.Renderer.WebGL.WebGLPipeline#setMatrix4
|
|
* @since 3.2.0
|
|
*
|
|
* @param {string} name - The name of the uniform to look-up and modify.
|
|
* @param {boolean} transpose - Should the matrix be transpose
|
|
* @param {Float32Array} matrix - Matrix data
|
|
*
|
|
* @return {this} This WebGLPipeline instance.
|
|
*/
|
|
setMatrix4: function (name, transpose, matrix)
|
|
{
|
|
this.renderer.setMatrix4(this.program, name, transpose, matrix);
|
|
|
|
return this;
|
|
}
|
|
|
|
});
|
|
|
|
module.exports = WebGLPipeline;
|