import { BatchShaderGenerator } from './BatchShaderGenerator';
import { BatchGeometry } from './BatchGeometry';
import { AbstractBatchRenderer } from './AbstractBatchRenderer';
import defaultVertex from './texture.vert';
import defaultFragment from './texture.frag';
import type { Renderer } from '../Renderer';
export interface IBatchFactoryOptions
{
vertex?: string;
fragment?: string;
geometryClass?: typeof BatchGeometry;
vertexSize?: number;
}
/**
* @class
* @memberof PIXI
* @hideconstructor
*/
export class BatchPluginFactory
{
/**
* Create a new BatchRenderer plugin for Renderer. this convenience can provide an easy way
* to extend BatchRenderer with all the necessary pieces.
* @example
* const fragment = `
* varying vec2 vTextureCoord;
* varying vec4 vColor;
* varying float vTextureId;
* uniform sampler2D uSamplers[%count%];
*
* void main(void){
* vec4 color;
* %forloop%
* gl_FragColor = vColor * vec4(color.a - color.rgb, color.a);
* }
* `;
* const InvertBatchRenderer = PIXI.BatchPluginFactory.create({ fragment });
* PIXI.Renderer.registerPlugin('invert', InvertBatchRenderer);
* const sprite = new PIXI.Sprite();
* sprite.pluginName = 'invert';
*
* @static
* @param {object} [options]
* @param {string} [options.vertex=PIXI.BatchPluginFactory.defaultVertexSrc] - Vertex shader source
* @param {string} [options.fragment=PIXI.BatchPluginFactory.defaultFragmentTemplate] - Fragment shader template
* @param {number} [options.vertexSize=6] - Vertex size
* @param {object} [options.geometryClass=PIXI.BatchGeometry]
* @return {*} New batch renderer plugin
*/
static create(options?: IBatchFactoryOptions): typeof AbstractBatchRenderer
{
const { vertex, fragment, vertexSize, geometryClass } = Object.assign({
vertex: defaultVertex,
fragment: defaultFragment,
geometryClass: BatchGeometry,
vertexSize: 6,
}, options);
return class BatchPlugin extends AbstractBatchRenderer
{
constructor(renderer: Renderer)
{
super(renderer);
this.shaderGenerator = new BatchShaderGenerator(vertex, fragment);
this.geometryClass = geometryClass;
this.vertexSize = vertexSize;
}
};
}
/**
* The default vertex shader source
*
* @static
* @type {string}
* @constant
*/
static get defaultVertexSrc(): string
{
return defaultVertex;
}
/**
* The default fragment shader source
*
* @static
* @type {string}
* @constant
*/
static get defaultFragmentTemplate(): string
{
return defaultFragment;
}
}
// Setup the default BatchRenderer plugin, this is what
// we'll actually export at the root level
export const BatchRenderer = BatchPluginFactory.create();