declare const _default: "\n\n#if defined(PLATFORM_ANDROID)\n\n    // Software pack of one f32 -> f16 (low 16 bits). Ties-to-even, full subnormals.\n    fn floatToHalf(a: f32) -> u32 {\n        let u: u32    = bitcast<u32>(a);\n        let sign: u32 = (u >> 16u) & 0x8000u;\n        let absu: u32 = u & 0x7FFFFFFFu;\n        let man: u32  = u & 0x007FFFFFu;\n        let e32: i32  = i32((u >> 23u) & 0xFFu) - 127;\n        \n        // NaN / Inf\n        if ((absu & 0x7F800000u) == 0x7F800000u) {\n            let isnan = (man != 0u);\n            return sign | select(0x7C00u, 0x7E00u, isnan);\n        }\n        \n        // Overflow to Inf\n        if (e32 > 15) { return sign | 0x7C00u; }\n        \n        // Normal half\n        if (e32 >= -14) {\n            var he: u32 = u32(e32 + 15);\n            var hm: u32 = man >> 13u;\n            let rem: u32 = man & 0x1FFFu;\n            let add: u32 = select(0u, 1u, (rem > 0x1000u) || (rem == 0x1000u && (hm & 1u) == 1u));\n            hm = (hm + add) & 0x3FFu;\n            if ((hm & 0x400u) != 0u) {\n                hm = 0u; he = he + 1u;\n                if (he >= 31u) { return sign | 0x7C00u; }\n            }\n            return sign | (he << 10u) | hm;\n        }\n        \n        // Subnormals\n        if (e32 >= -24) {\n            let s: u32      = u32(-(e32 + 1));\n            let mnorm: u32  = 0x00800000u | man;\n            var hm: u32     = mnorm >> s;\n            let mask: u32   = (1u << s) - 1u;\n            let rem: u32    = mnorm & mask;\n            let halfBt: u32 = 1u << (s - 1u);\n            let add: u32    = select(0u, 1u, (rem > halfBt) || (rem == halfBt && (hm & 1u) == 1u));\n            hm = hm + add;\n            if (hm >= 0x400u) { return sign | (1u << 10u); }\n            return sign | hm;\n        }\n        \n        return sign; // signed zero\n    }\n\n    // Hybrid pack: software for subnormals, builtin for normal range\n    fn pack2x16floatSafe(v: vec2f) -> u32 {\n        // Convert the input floats to their 32-bit IEEE-754 bit patterns.\n        // We'll inspect the exponent bits directly to determine their numeric range.\n        let u_x: u32  = bitcast<u32>(v.x);\n        let u_y: u32  = bitcast<u32>(v.y);\n        \n        // Extract the unbiased exponent for each component (float32 uses bias = 127).\n        // e32 = exponent - 127  \u21D2  actual power of two for each value.\n        let e32_x: i32 = i32((u_x >> 23u) & 0xFFu) - 127;\n        let e32_y: i32 = i32((u_y >> 23u) & 0xFFu) - 127;\n        \n        // -------------------------------------------------------------------------\n        // Detect values that would become *subnormal* (or zero) in float16.\n        //\n        //   e32 < -14  \u21D4  |value| < 2^-14 \u2248 6.1035e-5\n        //\n        // Many mobile GPUs (including Adreno and Mali) mishandle half-precision\n        // subnormals\u2014typically flushing them to zero or rounding incorrectly.\n        // To preserve correct rounding and sign, we use the software conversion\n        // path (floatToHalf) for these small magnitudes.\n        //\n        // The software branch runs very rarely (<0.1% of typical values for\n        // normalized scene data) and costs only a few ALU instructions, so the\n        // performance impact is negligible while avoiding visible precision loss.\n        // -------------------------------------------------------------------------\n        if (e32_x < -14 || e32_y < -14) {\n            // Convert both components with the reference software routine\n            // and pack into a 32-bit uint: low 16 bits = x, high 16 bits = y.\n            return (floatToHalf(v.y) << 16u) | floatToHalf(v.x);\n        }\n        \n        // Normal range: use the fast hardware builtin\n        return pack2x16float(v);\n    }\n\n#else\n\n    // On non-Android platforms, use builtin directly (no subnormal workaround needed)\n    fn pack2x16floatSafe(v: vec2f) -> u32 {\n        return pack2x16float(v);\n    }\n\n#endif\n";
export default _default;