From 63e5041e6ea0f7fb57a1cc349f1325785fa800fa Mon Sep 17 00:00:00 2001 From: John Richardson Date: Fri, 13 Oct 2017 20:51:42 +0100 Subject: COMPMID-576: Port Phase to new validation Change-Id: Ice08031c997cf8162a4358deb059db857ede2382 Reviewed-on: http://mpd-gerrit.cambridge.arm.com/93585 Tested-by: Kaizen Reviewed-by: Anthony Barbier --- tests/validation/CPP/Phase.cpp | 91 ++++++++++++++++++++++++++++++++++++++++++ tests/validation/CPP/Phase.h | 43 ++++++++++++++++++++ 2 files changed, 134 insertions(+) create mode 100644 tests/validation/CPP/Phase.cpp create mode 100644 tests/validation/CPP/Phase.h (limited to 'tests/validation/CPP') diff --git a/tests/validation/CPP/Phase.cpp b/tests/validation/CPP/Phase.cpp new file mode 100644 index 0000000000..4311ef091e --- /dev/null +++ b/tests/validation/CPP/Phase.cpp @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2017 ARM Limited. + * + * SPDX-License-Identifier: MIT + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "Phase.h" + +namespace arm_compute +{ +namespace test +{ +namespace validation +{ +namespace reference +{ +template +SimpleTensor phase(const SimpleTensor &gx, const SimpleTensor &gy, PhaseType phase_type) +{ + const float pi = std::atan(1) * 4; + const float rad_to_deg = 180.0f / pi; + const float scale_factor = 128.f / 180.f; + const float epsilon = 1e-9f; // used to avoid division by zero + + const float ninety = scale_factor * 90.f; + const float one_eighty = scale_factor * 180.f; + const float two_seventy = scale_factor * 270.f; + + // unsigned: map to [0-255) + // signed: map to [0-180) degrees + const float scale = (phase_type == PhaseType::UNSIGNED) ? rad_to_deg : rad_to_deg * scale_factor; + + SimpleTensor phase(gx.shape(), DataType::U8); + + for(int i = 0; i < gx.num_elements(); ++i) + { + bool quad_two = std::signbit(gx[i]) && !std::signbit(gy[i]); + bool quad_three = std::signbit(gx[i]) && std::signbit(gy[i]); + bool quad_four = !std::signbit(gx[i]) && std::signbit(gy[i]); + + float x = gy[i] / (gx[i] + epsilon); + double arctan = std::atan(x); + + const bool is_negative = std::signbit(arctan); + + // Radians to degrees conversion with applied scale factor + arctan = arctan * scale; + + if(phase_type == PhaseType::UNSIGNED) + { + arctan = is_negative ? arctan + 180.f : arctan; + } + else + { + arctan = is_negative ? arctan + ninety : arctan; + + // Choose correct quandrant + arctan = quad_two ? ninety + arctan : arctan; + arctan = quad_three ? one_eighty + arctan : arctan; + arctan = quad_four ? two_seventy + arctan : arctan; + } + + phase[i] = saturate_cast(arctan + 0.5f); + } + + return phase; +} + +template SimpleTensor phase(const SimpleTensor &gx, const SimpleTensor &gy, PhaseType phase_type); +template SimpleTensor phase(const SimpleTensor &gx, const SimpleTensor &gy, PhaseType phase_type); +} // namespace reference +} // namespace validation +} // namespace test +} // namespace arm_compute diff --git a/tests/validation/CPP/Phase.h b/tests/validation/CPP/Phase.h new file mode 100644 index 0000000000..d322d53e02 --- /dev/null +++ b/tests/validation/CPP/Phase.h @@ -0,0 +1,43 @@ +/* + * Copyright (c) 2017 ARM Limited. + * + * SPDX-License-Identifier: MIT + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef __ARM_COMPUTE_TEST_PHASE_H__ +#define __ARM_COMPUTE_TEST_PHASE_H__ + +#include "tests/SimpleTensor.h" + +namespace arm_compute +{ +namespace test +{ +namespace validation +{ +namespace reference +{ +template +SimpleTensor phase(const SimpleTensor &gx, const SimpleTensor &gy, PhaseType phase_type); +} // namespace reference +} // namespace validation +} // namespace test +} // namespace arm_compute +#endif /* __ARM_COMPUTE_TEST_PHASE_H__ */ -- cgit v1.2.1