definitions/simd-loop/loop_108.json

{
  "name": "loop_108",
  "op_type": "loop_108",
  "description": "Deinterleave RGBA pixel data and accumulate channel values with bit shifts",
  "tags": [
    "simd-loop"
  ],
  "axes": {
    "N": {
      "type": "var",
      "description": "Array length"
    }
  },
  "inputs": {
    "rgba": {
      "shape": [
        "N"
      ],
      "dtype": "uint32"
    }
  },
  "outputs": {
    "y": {
      "shape": [
        "N"
      ],
      "dtype": "uint8",
      "description": "Output array"
    }
  },
  "reference": "import numpy as np\n\ndef run(rgba):\n    u = rgba.view(np.uint32)\n    y = (u >> 26).astype(np.uint16)\n    y += ((u >> 17) & np.uint32(0x7f)).astype(np.uint16)\n    y += ((u >> 19) & np.uint32(0x1f)).astype(np.uint16)\n    y += ((u >> 11) & np.uint32(0x1f)).astype(np.uint16)\n    return y.astype(np.uint8)\n",
  "simd_loop_meta": {
    "output_inplace": false,
    "array_pad": 0,
    "scratch": []
  }
}