| // SPDX-License-Identifier: Apache-2.0 | |
| // ---------------------------------------------------------------------------- | |
| // Copyright 2021 Arm Limited | |
| // | |
| // Licensed under the Apache License, Version 2.0 (the "License"); you may not | |
| // use this file except in compliance with the License. You may obtain a copy | |
| // of the License at: | |
| // | |
| // http://www.apache.org/licenses/LICENSE-2.0 | |
| // | |
| // Unless required by applicable law or agreed to in writing, software | |
| // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | |
| // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the | |
| // License for the specific language governing permissions and limitations | |
| // under the License. | |
| // ---------------------------------------------------------------------------- | |
| /** | |
| * @brief Unit tests for the software half-float library. | |
| */ | |
| namespace astcenc | |
| { | |
| /** @brief Test normal numbers. */ | |
| TEST(softfloat, FP16NormalNumbers) | |
| { | |
| float result = sf16_to_float((15 << 10) + 1); | |
| EXPECT_NEAR(result, 1.00098f, 0.00005f); | |
| } | |
| /** @brief Test denormal numbers. */ | |
| TEST(softfloat, FP16DenormalNumbers) | |
| { | |
| float result = sf16_to_float((0 << 10) + 1); | |
| EXPECT_NEAR(result, 5.96046e-08f, 0.00005f); | |
| } | |
| /** @brief Test zero. */ | |
| TEST(softfloat, FP16Zero) | |
| { | |
| float result = sf16_to_float(0x0000); | |
| EXPECT_EQ(result, 0.0f); | |
| } | |
| /** @brief Test infinity. */ | |
| TEST(softfloat, FP16Infinity) | |
| { | |
| float result = sf16_to_float((31 << 10) + 0); | |
| EXPECT_TRUE(std::isinf(result)); | |
| } | |
| /** @brief Test NaN. */ | |
| TEST(softfloat, FP16NaN) | |
| { | |
| float result = sf16_to_float(0xFFFF); | |
| EXPECT_TRUE(std::isnan(result)); | |
| } | |
| } | |