File size: 1,066 Bytes
f25167e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | {
"name": "loop_101",
"op_type": "loop_101",
"description": "Upscale a pixel buffer by splitting each element into its high and low halves",
"tags": [
"simd-loop"
],
"axes": {
"n": {
"type": "var",
"description": "axis n"
},
"out_len": {
"type": "var",
"description": "axis out_len"
}
},
"inputs": {
"b": {
"shape": [
"n"
],
"dtype": "uint8"
}
},
"outputs": {
"a": {
"shape": [
"out_len"
],
"dtype": "uint8",
"description": "Output array"
}
},
"reference": "import numpy as np\n\ndef run(b):\n n = b.shape[0]\n a = np.zeros(2 * (n - 1), dtype=np.uint8)\n if n >= 2:\n s1 = b[:-1].astype(np.uint16)\n s2 = b[1:].astype(np.uint16)\n a[0::2] = ((3 * s1 + s2 + 2) >> 2).astype(np.uint8)\n a[1::2] = ((3 * s2 + s1 + 2) >> 2).astype(np.uint8)\n return a\n",
"simd_loop_meta": {
"output_inplace": false,
"array_pad": 0,
"scratch": [],
"axes_order": [
"n"
]
}
}
|