| /* The Clear BSD License | |
| * | |
| * Copyright (c) 2025 EdgeImpulse Inc. | |
| * All rights reserved. | |
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| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted (subject to the limitations in the disclaimer | |
| * below) provided that the following conditions are met: | |
| * | |
| * * Redistributions of source code must retain the above copyright notice, | |
| * this list of conditions and the following disclaimer. | |
| * | |
| * * Redistributions in binary form must reproduce the above copyright | |
| * notice, this list of conditions and the following disclaimer in the | |
| * documentation and/or other materials provided with the distribution. | |
| * | |
| * * Neither the name of the copyright holder nor the names of its | |
| * contributors may be used to endorse or promote products derived from this | |
| * software without specific prior written permission. | |
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| * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY | |
| * THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND | |
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| */ | |
| static int32_t pre_cast_quantize(float value, float scale, int32_t zero_point, bool is_signed) { | |
| int32_t max_value = is_signed ? 127 : 255; | |
| int32_t min_value = is_signed ? -128 : 0; | |
| // Saturate/clip any overflows post scaling | |
| return std::min( std::max( static_cast<int32_t>(round(value / scale)) + zero_point, min_value), max_value); | |
| } | |