@pixi/core/lib/shader/utils/uniformParsers.mjs.map

Core PixiJS

{"version":3,"file":"uniformParsers.mjs","sources":["../../../src/shader/utils/uniformParsers.ts"],"sourcesContent":["/* eslint-disable @typescript-eslint/explicit-module-boundary-types */\n// Parsers, each one of these will take a look at the type of shader property and uniform.\n// if they pass the test function then the code function is called that returns a the shader upload code for that uniform.\n// Shader upload code is automagically generated with these parsers.\n// If no parser is valid then the default upload functions are used.\n// exposing Parsers means that custom upload logic can be added to pixi's shaders.\n// A good example would be a pixi rectangle can be directly set on a uniform.\n// If the shader sees it it knows how to upload the rectangle structure as a vec4\n// format is as follows:\n//\n// {\n//     test: (data, uniform) => {} <--- test is this code should be used for this uniform\n//     code: (name, uniform) => {} <--- returns the string of the piece of code that uploads the uniform\n//     codeUbo: (name, uniform) => {} <--- returns the string of the piece of code that uploads the\n//                                         uniform to a uniform buffer\n// }\n\nexport interface IUniformParser\n{\n    test(data: unknown, uniform: any): boolean;\n    code(name: string, uniform: any): string;\n    codeUbo?(name: string, uniform: any): string;\n}\n\nexport const uniformParsers: IUniformParser[] = [\n\n    // a float cache layer\n    {\n        test: (data: any): boolean =>\n            data.type === 'float' && data.size === 1 && !data.isArray,\n        code: (name: string): string =>\n            `\n            if(uv[\"${name}\"] !== ud[\"${name}\"].value)\n            {\n                ud[\"${name}\"].value = uv[\"${name}\"]\n                gl.uniform1f(ud[\"${name}\"].location, uv[\"${name}\"])\n            }\n            `,\n    },\n    // handling samplers\n    {\n        test: (data: any, uniform: any): boolean =>\n            // eslint-disable-next-line max-len,no-eq-null,eqeqeq\n            (data.type === 'sampler2D' || data.type === 'samplerCube' || data.type === 'sampler2DArray') && data.size === 1 && !data.isArray && (uniform == null || uniform.castToBaseTexture !== undefined),\n        code: (name: string): string => `t = syncData.textureCount++;\n\n            renderer.texture.bind(uv[\"${name}\"], t);\n\n            if(ud[\"${name}\"].value !== t)\n            {\n                ud[\"${name}\"].value = t;\n                gl.uniform1i(ud[\"${name}\"].location, t);\\n; // eslint-disable-line max-len\n            }`,\n    },\n    // uploading pixi matrix object to mat3\n    {\n        test: (data: any, uniform: any): boolean =>\n            data.type === 'mat3' && data.size === 1 && !data.isArray && uniform.a !== undefined,\n        code: (name: string): string =>\n\n            // TODO and some smart caching dirty ids here!\n            `\n            gl.uniformMatrix3fv(ud[\"${name}\"].location, false, uv[\"${name}\"].toArray(true));\n            `,\n        codeUbo: (name: string): string =>\n            `\n                var ${name}_matrix = uv.${name}.toArray(true);\n\n                data[offset] = ${name}_matrix[0];\n                data[offset+1] = ${name}_matrix[1];\n                data[offset+2] = ${name}_matrix[2];\n        \n                data[offset + 4] = ${name}_matrix[3];\n                data[offset + 5] = ${name}_matrix[4];\n                data[offset + 6] = ${name}_matrix[5];\n        \n                data[offset + 8] = ${name}_matrix[6];\n                data[offset + 9] = ${name}_matrix[7];\n                data[offset + 10] = ${name}_matrix[8];\n            `\n        ,\n\n    },\n    // uploading a pixi point as a vec2 with caching layer\n    {\n        test: (data: any, uniform: any): boolean =>\n            data.type === 'vec2' && data.size === 1 && !data.isArray && uniform.x !== undefined,\n        code: (name: string): string =>\n            `\n                cv = ud[\"${name}\"].value;\n                v = uv[\"${name}\"];\n\n                if(cv[0] !== v.x || cv[1] !== v.y)\n                {\n                    cv[0] = v.x;\n                    cv[1] = v.y;\n                    gl.uniform2f(ud[\"${name}\"].location, v.x, v.y);\n                }`,\n        codeUbo: (name: string): string =>\n            `\n                v = uv.${name};\n\n                data[offset] = v.x;\n                data[offset+1] = v.y;\n            `\n    },\n    // caching layer for a vec2\n    {\n        test: (data: any): boolean =>\n            data.type === 'vec2' && data.size === 1 && !data.isArray,\n        code: (name: string): string =>\n            `\n                cv = ud[\"${name}\"].value;\n                v = uv[\"${name}\"];\n\n                if(cv[0] !== v[0] || cv[1] !== v[1])\n                {\n                    cv[0] = v[0];\n                    cv[1] = v[1];\n                    gl.uniform2f(ud[\"${name}\"].location, v[0], v[1]);\n                }\n            `,\n    },\n    // upload a pixi rectangle as a vec4 with caching layer\n    {\n        test: (data: any, uniform: any): boolean =>\n            data.type === 'vec4' && data.size === 1 && !data.isArray && uniform.width !== undefined,\n\n        code: (name: string): string =>\n            `\n                cv = ud[\"${name}\"].value;\n                v = uv[\"${name}\"];\n\n                if(cv[0] !== v.x || cv[1] !== v.y || cv[2] !== v.width || cv[3] !== v.height)\n                {\n                    cv[0] = v.x;\n                    cv[1] = v.y;\n                    cv[2] = v.width;\n                    cv[3] = v.height;\n                    gl.uniform4f(ud[\"${name}\"].location, v.x, v.y, v.width, v.height)\n                }`,\n        codeUbo: (name: string): string =>\n            `\n                    v = uv.${name};\n\n                    data[offset] = v.x;\n                    data[offset+1] = v.y;\n                    data[offset+2] = v.width;\n                    data[offset+3] = v.height;\n                `\n    },\n    // upload a pixi color as vec4 with caching layer\n    {\n        test: (data: any, uniform: any): boolean =>\n            data.type === 'vec4' && data.size === 1 && !data.isArray && uniform.red !== undefined,\n\n        code: (name: string): string =>\n            `\n                cv = ud[\"${name}\"].value;\n                v = uv[\"${name}\"];\n\n                if(cv[0] !== v.red || cv[1] !== v.green || cv[2] !== v.blue || cv[3] !== v.alpha)\n                {\n                    cv[0] = v.red;\n                    cv[1] = v.green;\n                    cv[2] = v.blue;\n                    cv[3] = v.alpha;\n                    gl.uniform4f(ud[\"${name}\"].location, v.red, v.green, v.blue, v.alpha)\n                }`,\n        codeUbo: (name: string): string =>\n            `\n                    v = uv.${name};\n\n                    data[offset] = v.red;\n                    data[offset+1] = v.green;\n                    data[offset+2] = v.blue;\n                    data[offset+3] = v.alpha;\n                `\n    },\n    // upload a pixi color as a vec3 with caching layer\n    {\n        test: (data: any, uniform: any): boolean =>\n            data.type === 'vec3' && data.size === 1 && !data.isArray && uniform.red !== undefined,\n\n        code: (name: string): string =>\n            `\n                cv = ud[\"${name}\"].value;\n                v = uv[\"${name}\"];\n\n                if(cv[0] !== v.red || cv[1] !== v.green || cv[2] !== v.blue || cv[3] !== v.a)\n                {\n                    cv[0] = v.red;\n                    cv[1] = v.green;\n                    cv[2] = v.blue;\n    \n                    gl.uniform3f(ud[\"${name}\"].location, v.red, v.green, v.blue)\n                }`,\n        codeUbo: (name: string): string =>\n            `\n                    v = uv.${name};\n\n                    data[offset] = v.red;\n                    data[offset+1] = v.green;\n                    data[offset+2] = v.blue;\n                `\n    },\n\n    // a caching layer for vec4 uploading\n    {\n        test: (data: any): boolean =>\n            data.type === 'vec4' && data.size === 1 && !data.isArray,\n        code: (name: string): string =>\n            `\n                cv = ud[\"${name}\"].value;\n                v = uv[\"${name}\"];\n\n                if(cv[0] !== v[0] || cv[1] !== v[1] || cv[2] !== v[2] || cv[3] !== v[3])\n                {\n                    cv[0] = v[0];\n                    cv[1] = v[1];\n                    cv[2] = v[2];\n                    cv[3] = v[3];\n\n                    gl.uniform4f(ud[\"${name}\"].location, v[0], v[1], v[2], v[3])\n                }`,\n    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