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b8a56af176
Format::aspect should be a mask so that it is easier to iterate over and test if an aspect is present. This CL also re-exports wgpu's EnumClassBitMask helpers in dawn_native. It also adds an EnumMaskIterator which wraps BitSetIterator to allow iterating over the enums in an enum mask. Bug: dawn:439 Change-Id: I08180a45b27c6031e2f80b0fa1801716677fd813 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/24682 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Jiawei Shao <jiawei.shao@intel.com> Commit-Queue: Austin Eng <enga@chromium.org>
73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
// Copyright 2020 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 "dawn_native/EnumMaskIterator.h"
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#include "gtest/gtest.h"
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namespace dawn_native {
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enum class TestAspect : uint8_t {
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Color = 1,
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Depth = 2,
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Stencil = 4,
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};
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template <>
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struct EnumBitmaskSize<TestAspect> {
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static constexpr unsigned value = 3;
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};
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} // namespace dawn_native
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namespace wgpu {
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template <>
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struct IsDawnBitmask<dawn_native::TestAspect> {
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static constexpr bool enable = true;
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};
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} // namespace wgpu
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namespace dawn_native {
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static_assert(EnumBitmaskSize<TestAspect>::value == 3, "");
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TEST(EnumMaskIteratorTests, None) {
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for (TestAspect aspect : IterateEnumMask(static_cast<TestAspect>(0))) {
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FAIL();
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DAWN_UNUSED(aspect);
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}
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}
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TEST(EnumMaskIteratorTests, All) {
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TestAspect expected[] = {TestAspect::Color, TestAspect::Depth, TestAspect::Stencil};
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uint32_t i = 0;
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TestAspect aspects = TestAspect::Color | TestAspect::Depth | TestAspect::Stencil;
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for (TestAspect aspect : IterateEnumMask(aspects)) {
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EXPECT_EQ(aspect, expected[i++]);
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}
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}
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TEST(EnumMaskIteratorTests, Partial) {
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TestAspect expected[] = {TestAspect::Color, TestAspect::Stencil};
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uint32_t i = 0;
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TestAspect aspects = TestAspect::Stencil | TestAspect::Color;
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for (TestAspect aspect : IterateEnumMask(aspects)) {
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EXPECT_EQ(aspect, expected[i++]);
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}
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}
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} // namespace dawn_native
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