| // Auto-generated file. Do not edit! |
| // Template: src/f32-qs8-vcvt/scalar-fmagic.c.in |
| // Generator: tools/xngen |
| // |
| // Copyright 2021 Google LLC |
| // |
| // This source code is licensed under the BSD-style license found in the |
| // LICENSE file in the root directory of this source tree. |
| |
| #include <assert.h> |
| |
| #include <xnnpack/common.h> |
| #include <xnnpack/math.h> |
| #include <xnnpack/vcvt.h> |
| |
| #include <fp16.h> |
| |
| |
| void xnn_f32_qu8_vcvt_ukernel__scalar_fmagic_x1( |
| size_t n, |
| const float* x, |
| uint8_t* y, |
| const union xnn_f32_qu8_cvt_params params[restrict XNN_MIN_ELEMENTS(1)]) |
| { |
| assert(n != 0); |
| assert(n % sizeof(float) == 0); |
| assert(x != NULL); |
| assert(y != NULL); |
| |
| const float vscale = params->scalar_fmagic.scale; |
| const float voutput_min_less_zero_point = params->scalar_fmagic.output_min_less_zero_point; |
| const float voutput_max_less_zero_point = params->scalar_fmagic.output_max_less_zero_point; |
| const float vmagic_bias = params->scalar_fmagic.magic_bias; |
| const int32_t vmagic_bias_less_zero_point = params->scalar_fmagic.magic_bias_less_zero_point; |
| |
| do { |
| float vx = *x++; |
| vx *= vscale; |
| vx = math_max_f32(vx, voutput_min_less_zero_point); |
| vx = math_min_f32(vx, voutput_max_less_zero_point); |
| vx += vmagic_bias; |
| |
| int32_t vy = (int32_t) fp32_to_bits(vx); |
| vy -= vmagic_bias_less_zero_point; |
| |
| *y++ = (uint8_t) vy; |
| |
| n -= sizeof(float); |
| } while (n != 0); |
| } |