mirror of
https://github.com/encounter/dawn-cmake.git
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2afea0c671
Bug: none Change-Id: I69904944db1d4c2fbcca74bb8b66b5a7524e76bb Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/24642 Reviewed-by: Austin Eng <enga@chromium.org> Commit-Queue: Kai Ninomiya <kainino@chromium.org>
94 lines
2.8 KiB
C++
94 lines
2.8 KiB
C++
// Copyright 2017 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "gtest/gtest.h"
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#include "dawn/EnumClassBitmasks.h"
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namespace wgpu {
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enum class Color : uint32_t {
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R = 1,
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G = 2,
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B = 4,
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A = 8,
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};
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template <>
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struct IsDawnBitmask<Color> {
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static constexpr bool enable = true;
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};
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TEST(BitmaskTests, BasicOperations) {
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Color test1 = Color::R | Color::G;
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ASSERT_EQ(1u | 2u, static_cast<uint32_t>(test1));
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Color test2 = test1 ^ (Color::R | Color::A);
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ASSERT_EQ(2u | 8u, static_cast<uint32_t>(test2));
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Color test3 = test2 & Color::A;
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ASSERT_EQ(8u, static_cast<uint32_t>(test3));
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Color test4 = ~test3;
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ASSERT_EQ(~uint32_t(8), static_cast<uint32_t>(test4));
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}
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TEST(BitmaskTests, AssignOperations) {
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Color test1 = Color::R;
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test1 |= Color::G;
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ASSERT_EQ(1u | 2u, static_cast<uint32_t>(test1));
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Color test2 = test1;
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test2 ^= (Color::R | Color::A);
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ASSERT_EQ(2u | 8u, static_cast<uint32_t>(test2));
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Color test3 = test2;
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test3 &= Color::A;
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ASSERT_EQ(8u, static_cast<uint32_t>(test3));
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}
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TEST(BitmaskTests, BoolConversion) {
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bool test1 = Color::R | Color::G;
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ASSERT_TRUE(test1);
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bool test2 = Color::R & Color::G;
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ASSERT_FALSE(test2);
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bool test3 = Color::R ^ Color::G;
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ASSERT_TRUE(test3);
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if (Color::R & ~Color::R) {
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ASSERT_TRUE(false);
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}
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}
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TEST(BitmaskTests, ThreeOrs) {
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Color c = Color::R | Color::G | Color::B;
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ASSERT_EQ(7u, static_cast<uint32_t>(c));
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}
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TEST(BitmaskTests, ZeroOrOneBits) {
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Color zero = static_cast<Color>(0);
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ASSERT_TRUE(wgpu::HasZeroOrOneBits(zero));
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ASSERT_TRUE(wgpu::HasZeroOrOneBits(Color::R));
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ASSERT_TRUE(wgpu::HasZeroOrOneBits(Color::G));
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ASSERT_TRUE(wgpu::HasZeroOrOneBits(Color::B));
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ASSERT_TRUE(wgpu::HasZeroOrOneBits(Color::A));
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ASSERT_FALSE(wgpu::HasZeroOrOneBits(static_cast<Color>(Color::R | Color::G)));
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ASSERT_FALSE(wgpu::HasZeroOrOneBits(static_cast<Color>(Color::G | Color::B)));
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ASSERT_FALSE(wgpu::HasZeroOrOneBits(static_cast<Color>(Color::B | Color::A)));
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}
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} // namespace wgpu
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