pixi.js/lib/rendering/renderers/gl/shader/GlShaderSystem.mjs.map

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{"version":3,"file":"GlShaderSystem.mjs","sources":["../../../../../src/rendering/renderers/gl/shader/GlShaderSystem.ts"],"sourcesContent":["import { ExtensionType } from '../../../../extensions/Extensions';\nimport { generateShaderSyncCode } from './GenerateShaderSyncCode';\nimport { generateProgram } from './program/generateProgram';\n\nimport type { BufferResource } from '../../shared/buffer/BufferResource';\nimport type { Shader } from '../../shared/shader/Shader';\nimport type { UniformGroup } from '../../shared/shader/UniformGroup';\nimport type { GlRenderingContext } from '../context/GlRenderingContext';\nimport type { WebGLRenderer } from '../WebGLRenderer';\nimport type { GlProgram } from './GlProgram';\nimport type { GlProgramData } from './GlProgramData';\n\n/** @internal */\nexport interface ShaderSyncData\n{\n    textureCount: number;\n    blockIndex: number;\n}\n\n/** @internal */\nexport type ShaderSyncFunction = (renderer: WebGLRenderer, shader: Shader, syncData: ShaderSyncData) => void;\n\n// default sync data so we don't create a new one each time!\nconst defaultSyncData: ShaderSyncData = {\n    textureCount: 0,\n    blockIndex: 0,\n};\n\n/**\n * System plugin to the renderer to manage the shaders for WebGL.\n * @category rendering\n * @advanced\n */\nexport class GlShaderSystem\n{\n    /** @ignore */\n    public static extension = {\n        type: [\n            ExtensionType.WebGLSystem,\n        ],\n        name: 'shader',\n    } as const;\n\n    /** @internal */\n    public _activeProgram: GlProgram = null;\n\n    private _programDataHash: Record<string, GlProgramData> = Object.create(null);\n    private readonly _renderer: WebGLRenderer;\n    /** @internal */\n    public _gl: WebGL2RenderingContext;\n    private _shaderSyncFunctions: Record<string, ShaderSyncFunction> = Object.create(null);\n\n    constructor(renderer: WebGLRenderer)\n    {\n        this._renderer = renderer;\n        this._renderer.renderableGC.addManagedHash(this, '_programDataHash');\n    }\n\n    protected contextChange(gl: GlRenderingContext): void\n    {\n        this._gl = gl;\n\n        this._programDataHash = Object.create(null);\n        /**\n         * these need to also be cleared as internally some uniforms are set as an optimisation as the sync\n         * function is generated. Specifically the texture ints.\n         */\n        this._shaderSyncFunctions = Object.create(null);\n        this._activeProgram = null;\n    }\n\n    /**\n     * Changes the current shader to the one given in parameter.\n     * @param shader - the new shader\n     * @param skipSync - false if the shader should automatically sync its uniforms.\n     * @returns the glProgram that belongs to the shader.\n     */\n    public bind(shader: Shader, skipSync?: boolean): void\n    {\n        this._setProgram(shader.glProgram);\n\n        if (skipSync) return;\n\n        defaultSyncData.textureCount = 0;\n        defaultSyncData.blockIndex = 0;\n\n        let syncFunction = this._shaderSyncFunctions[shader.glProgram._key];\n\n        if (!syncFunction)\n        {\n            syncFunction = this._shaderSyncFunctions[shader.glProgram._key] = this._generateShaderSync(shader, this);\n        }\n\n        // TODO: take into account number of TF buffers. Currently works only with interleaved\n        this._renderer.buffer.nextBindBase(!!shader.glProgram.transformFeedbackVaryings);\n        syncFunction(this._renderer, shader, defaultSyncData);\n    }\n\n    /**\n     * Updates the uniform group.\n     * @param uniformGroup - the uniform group to update\n     */\n    public updateUniformGroup(uniformGroup: UniformGroup): void\n    {\n        this._renderer.uniformGroup.updateUniformGroup(uniformGroup, this._activeProgram, defaultSyncData);\n    }\n\n    /**\n     * Binds a uniform block to the shader.\n     * @param uniformGroup - the uniform group to bind\n     * @param name - the name of the uniform block\n     * @param index - the index of the uniform block\n     */\n    public bindUniformBlock(uniformGroup: UniformGroup | BufferResource, name: string, index = 0): void\n    {\n        const bufferSystem = this._renderer.buffer;\n        const programData = this._getProgramData(this._activeProgram);\n\n        const isBufferResource = (uniformGroup as BufferResource)._bufferResource;\n\n        if (!isBufferResource)\n        {\n            this._renderer.ubo.updateUniformGroup(uniformGroup as UniformGroup);\n        }\n\n        const buffer = uniformGroup.buffer;\n\n        const glBuffer = bufferSystem.updateBuffer(buffer);\n\n        const boundLocation = bufferSystem.freeLocationForBufferBase(glBuffer);\n\n        if (isBufferResource)\n        {\n            const { offset, size } = (uniformGroup as BufferResource);\n\n            // trivial case of buffer resource, can be cached\n            if (offset === 0 && size === buffer.data.byteLength)\n            {\n                bufferSystem.bindBufferBase(glBuffer, boundLocation);\n            }\n            else\n            {\n                bufferSystem.bindBufferRange(glBuffer, boundLocation, offset);\n            }\n        }\n        else if (bufferSystem.getLastBindBaseLocation(glBuffer) !== boundLocation)\n        {\n            // confirmation that buffer isn't there yet\n            bufferSystem.bindBufferBase(glBuffer, boundLocation);\n        }\n\n        const uniformBlockIndex = this._activeProgram._uniformBlockData[name].index;\n\n        if (programData.uniformBlockBindings[index] === boundLocation) return;\n        programData.uniformBlockBindings[index] = boundLocation;\n\n        this._renderer.gl.uniformBlockBinding(programData.program, uniformBlockIndex, boundLocation);\n    }\n\n    private _setProgram(program: GlProgram)\n    {\n        if (this._activeProgram === program) return;\n\n        this._activeProgram = program;\n\n        const programData = this._getProgramData(program);\n\n        this._gl.useProgram(programData.program);\n    }\n\n    /**\n     * @param program - the program to get the data for\n     * @internal\n     */\n    public _getProgramData(program: GlProgram): GlProgramData\n    {\n        return this._programDataHash[program._key] || this._createProgramData(program);\n    }\n\n    private _createProgramData(program: GlProgram): GlProgramData\n    {\n        const key = program._key;\n\n        this._programDataHash[key] = generateProgram(this._gl, program);\n\n        return this._programDataHash[key];\n    }\n\n    public destroy(): void\n    {\n        for (const key of Object.keys(this._programDataHash))\n        {\n            const programData = this._programDataHash[key];\n\n            programData.destroy();\n            this._programDataHash[key] = null;\n        }\n\n        this._programDataHash = null;\n    }\n\n    /**\n     * Creates a function that can be executed that will sync the shader as efficiently as possible.\n     * Overridden by the unsafe eval package if you don't want eval used in your project.\n     * @param shader - the shader to generate the sync function for\n     * @param shaderSystem - the shader system to use\n     * @returns - the generated sync function\n     * @ignore\n     */\n    public _generateShaderSync(shader: Shader, shaderSystem: GlShaderSystem): ShaderSyncFunction\n    {\n        return generateShaderSyncCode(shader, shaderSystem);\n    }\n\n    public resetState(): void\n    {\n        this._activeProgram = null;\n    }\n}\n"],"names":[],"mappings":";;;;;AAuBA,MAAM,eAAkC,GAAA;AAAA,EACpC,YAAc,EAAA,CAAA;AAAA,EACd,UAAY,EAAA,CAAA;AAChB,CAAA,CAAA;AAOO,MAAM,cACb,CAAA;AAAA,EAkBI,YAAY,QACZ,EAAA;AATA;AAAA,IAAA,IAAA,CAAO,cAA4B,GAAA,IAAA,CAAA;AAEnC,IAAQ,IAAA,CAAA,gBAAA,mBAAyD,MAAA,CAAA,MAAA,CAAO,IAAI,CAAA,CAAA;AAI5E,IAAQ,IAAA,CAAA,oBAAA,mBAAkE,MAAA,CAAA,MAAA,CAAO,IAAI,CAAA,CAAA;AAIjF,IAAA,IAAA,CAAK,SAAY,GAAA,QAAA,CAAA;AACjB,IAAA,IAAA,CAAK,SAAU,CAAA,YAAA,CAAa,cAAe,CAAA,IAAA,EAAM,kBAAkB,CAAA,CAAA;AAAA,GACvE;AAAA,EAEU,cAAc,EACxB,EAAA;AACI,IAAA,IAAA,CAAK,GAAM,GAAA,EAAA,CAAA;AAEX,IAAK,IAAA,CAAA,gBAAA,mBAA0B,MAAA,CAAA,MAAA,CAAO,IAAI,CAAA,CAAA;AAK1C,IAAK,IAAA,CAAA,oBAAA,mBAA8B,MAAA,CAAA,MAAA,CAAO,IAAI,CAAA,CAAA;AAC9C,IAAA,IAAA,CAAK,cAAiB,GAAA,IAAA,CAAA;AAAA,GAC1B;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EAQO,IAAA,CAAK,QAAgB,QAC5B,EAAA;AACI,IAAK,IAAA,CAAA,WAAA,CAAY,OAAO,SAAS,CAAA,CAAA;AAEjC,IAAI,IAAA,QAAA;AAAU,MAAA,OAAA;AAEd,IAAA,eAAA,CAAgB,YAAe,GAAA,CAAA,CAAA;AAC/B,IAAA,eAAA,CAAgB,UAAa,GAAA,CAAA,CAAA;AAE7B,IAAA,IAAI,YAAe,GAAA,IAAA,CAAK,oBAAqB,CAAA,MAAA,CAAO,UAAU,IAAI,CAAA,CAAA;AAElE,IAAA,IAAI,CAAC,YACL,EAAA;AACI,MAAe,YAAA,GAAA,IAAA,CAAK,qBAAqB,MAAO,CAAA,SAAA,CAAU,IAAI,CAAI,GAAA,IAAA,CAAK,mBAAoB,CAAA,MAAA,EAAQ,IAAI,CAAA,CAAA;AAAA,KAC3G;AAGA,IAAA,IAAA,CAAK,UAAU,MAAO,CAAA,YAAA,CAAa,CAAC,CAAC,MAAA,CAAO,UAAU,yBAAyB,CAAA,CAAA;AAC/E,IAAa,YAAA,CAAA,IAAA,CAAK,SAAW,EAAA,MAAA,EAAQ,eAAe,CAAA,CAAA;AAAA,GACxD;AAAA;AAAA;AAAA;AAAA;AAAA,EAMO,mBAAmB,YAC1B,EAAA;AACI,IAAA,IAAA,CAAK,UAAU,YAAa,CAAA,kBAAA,CAAmB,YAAc,EAAA,IAAA,CAAK,gBAAgB,eAAe,CAAA,CAAA;AAAA,GACrG;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EAQO,gBAAiB,CAAA,YAAA,EAA6C,IAAc,EAAA,KAAA,GAAQ,CAC3F,EAAA;AACI,IAAM,MAAA,YAAA,GAAe,KAAK,SAAU,CAAA,MAAA,CAAA;AACpC,IAAA,MAAM,WAAc,GAAA,IAAA,CAAK,eAAgB,CAAA,IAAA,CAAK,cAAc,CAAA,CAAA;AAE5D,IAAA,MAAM,mBAAoB,YAAgC,CAAA,eAAA,CAAA;AAE1D,IAAA,IAAI,CAAC,gBACL,EAAA;AACI,MAAK,IAAA,CAAA,SAAA,CAAU,GAAI,CAAA,kBAAA,CAAmB,YAA4B,CAAA,CAAA;AAAA,KACtE;AAEA,IAAA,MAAM,SAAS,YAAa,CAAA,MAAA,CAAA;AAE5B,IAAM,MAAA,QAAA,GAAW,YAAa,CAAA,YAAA,CAAa,MAAM,CAAA,CAAA;AAEjD,IAAM,MAAA,aAAA,GAAgB,YAAa,CAAA,yBAAA,CAA0B,QAAQ,CAAA,CAAA;AAErE,IAAA,IAAI,gBACJ,EAAA;AACI,MAAM,MAAA,EAAE,MAAQ,EAAA,IAAA,EAAU,GAAA,YAAA,CAAA;AAG1B,MAAA,IAAI,MAAW,KAAA,CAAA,IAAK,IAAS,KAAA,MAAA,CAAO,KAAK,UACzC,EAAA;AACI,QAAa,YAAA,CAAA,cAAA,CAAe,UAAU,aAAa,CAAA,CAAA;AAAA,OAGvD,MAAA;AACI,QAAa,YAAA,CAAA,eAAA,CAAgB,QAAU,EAAA,aAAA,EAAe,MAAM,CAAA,CAAA;AAAA,OAChE;AAAA,KAEK,MAAA,IAAA,YAAA,CAAa,uBAAwB,CAAA,QAAQ,MAAM,aAC5D,EAAA;AAEI,MAAa,YAAA,CAAA,cAAA,CAAe,UAAU,aAAa,CAAA,CAAA;AAAA,KACvD;AAEA,IAAA,MAAM,iBAAoB,GAAA,IAAA,CAAK,cAAe,CAAA,iBAAA,CAAkB,IAAI,CAAE,CAAA,KAAA,CAAA;AAEtE,IAAI,IAAA,WAAA,CAAY,oBAAqB,CAAA,KAAK,CAAM,KAAA,aAAA;AAAe,MAAA,OAAA;AAC/D,IAAY,WAAA,CAAA,oBAAA,CAAqB,KAAK,CAAI,GAAA,aAAA,CAAA;AAE1C,IAAA,IAAA,CAAK,UAAU,EAAG,CAAA,mBAAA,CAAoB,WAAY,CAAA,OAAA,EAAS,mBAAmB,aAAa,CAAA,CAAA;AAAA,GAC/F;AAAA,EAEQ,YAAY,OACpB,EAAA;AACI,IAAA,IAAI,KAAK,cAAmB,KAAA,OAAA;AAAS,MAAA,OAAA;AAErC,IAAA,IAAA,CAAK,cAAiB,GAAA,OAAA,CAAA;AAEtB,IAAM,MAAA,WAAA,GAAc,IAAK,CAAA,eAAA,CAAgB,OAAO,CAAA,CAAA;AAEhD,IAAK,IAAA,CAAA,GAAA,CAAI,UAAW,CAAA,WAAA,CAAY,OAAO,CAAA,CAAA;AAAA,GAC3C;AAAA;AAAA;AAAA;AAAA;AAAA,EAMO,gBAAgB,OACvB,EAAA;AACI,IAAA,OAAO,KAAK,gBAAiB,CAAA,OAAA,CAAQ,IAAI,CAAK,IAAA,IAAA,CAAK,mBAAmB,OAAO,CAAA,CAAA;AAAA,GACjF;AAAA,EAEQ,mBAAmB,OAC3B,EAAA;AACI,IAAA,MAAM,MAAM,OAAQ,CAAA,IAAA,CAAA;AAEpB,IAAA,IAAA,CAAK,iBAAiB,GAAG,CAAA,GAAI,eAAgB,CAAA,IAAA,CAAK,KAAK,OAAO,CAAA,CAAA;AAE9D,IAAO,OAAA,IAAA,CAAK,iBAAiB,GAAG,CAAA,CAAA;AAAA,GACpC;AAAA,EAEO,OACP,GAAA;AACI,IAAA,KAAA,MAAW,GAAO,IAAA,MAAA,CAAO,IAAK,CAAA,IAAA,CAAK,gBAAgB,CACnD,EAAA;AACI,MAAM,MAAA,WAAA,GAAc,IAAK,CAAA,gBAAA,CAAiB,GAAG,CAAA,CAAA;AAE7C,MAAA,WAAA,CAAY,OAAQ,EAAA,CAAA;AACpB,MAAK,IAAA,CAAA,gBAAA,CAAiB,GAAG,CAAI,GAAA,IAAA,CAAA;AAAA,KACjC;AAEA,IAAA,IAAA,CAAK,gBAAmB,GAAA,IAAA,CAAA;AAAA,GAC5B;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EAUO,mBAAA,CAAoB,QAAgB,YAC3C,EAAA;AACI,IAAO,OAAA,sBAAA,CAAuB,QAAQ,YAAY,CAAA,CAAA;AAAA,GACtD;AAAA,EAEO,UACP,GAAA;AACI,IAAA,IAAA,CAAK,cAAiB,GAAA,IAAA,CAAA;AAAA,GAC1B;AACJ,CAAA;AAAA;AAzLa,cAAA,CAGK,SAAY,GAAA;AAAA,EACtB,IAAM,EAAA;AAAA,IACF,aAAc,CAAA,WAAA;AAAA,GAClB;AAAA,EACA,IAAM,EAAA,QAAA;AACV,CAAA;;;;"}