import {
	colorBit,
	colorBitGl,
	compileHighShaderGlProgram,
	compileHighShaderGpuProgram,
	generateTextureBatchBit,
	generateTextureBatchBitGl,
	getBatchSamplersUniformGroup,
	roundPixelsBit,
	roundPixelsBitGl,
	Shader
} from 'pixi.js';
import { darkTintBit, darkTintBitGl } from './darkTintBit';

export class DarkTintShader extends Shader {
	constructor (maxTextures: number) {
		const glProgram = compileHighShaderGlProgram({
			name: 'dark-tint-batch',
			bits: [
				colorBitGl,
				darkTintBitGl,
				generateTextureBatchBitGl(maxTextures),
				roundPixelsBitGl,
			]
		});

		const gpuProgram = compileHighShaderGpuProgram({
			name: 'dark-tint-batch',
			bits: [
				colorBit,
				darkTintBit,
				generateTextureBatchBit(maxTextures),
				roundPixelsBit,
			]
		});

		super({
			glProgram,
			gpuProgram,
			resources: {
				batchSamplers: getBatchSamplersUniformGroup(maxTextures),
			}
		});
	}
}