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https://github.com/encounter/dawn-cmake.git
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fffe6dfa16
This directory used to contain both the state tracking code for the backends, and the common utilities that could be used both by the backends and the rest of the code. Things are now: - src/common is utility code for the whole repo - src/backend contains libNXT's code - src/utils is utility code that we don't want in libNXT This commit also changes all includes to use global paths from src/ bacause it had to touch a bunch of #include statements anyway.
72 lines
2.8 KiB
C++
72 lines
2.8 KiB
C++
// Copyright 2017 The NXT 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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#ifndef BACKEND_PERSTAGE_H_
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#define BACKEND_PERSTAGE_H_
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#include "common/BitSetIterator.h"
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#include "common/Constants.h"
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#include "nxt/nxtcpp.h"
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#include <array>
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#include <cassert>
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#define ASSERT assert
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namespace backend {
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static_assert(static_cast<uint32_t>(nxt::ShaderStage::Vertex) < kNumStages, "");
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static_assert(static_cast<uint32_t>(nxt::ShaderStage::Fragment) < kNumStages, "");
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static_assert(static_cast<uint32_t>(nxt::ShaderStage::Compute) < kNumStages, "");
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static_assert(static_cast<uint32_t>(nxt::ShaderStageBit::Vertex) == (1 << static_cast<uint32_t>(nxt::ShaderStage::Vertex)), "");
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static_assert(static_cast<uint32_t>(nxt::ShaderStageBit::Fragment) == (1 << static_cast<uint32_t>(nxt::ShaderStage::Fragment)), "");
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static_assert(static_cast<uint32_t>(nxt::ShaderStageBit::Compute) == (1 << static_cast<uint32_t>(nxt::ShaderStage::Compute)), "");
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BitSetIterator<kNumStages, nxt::ShaderStage> IterateStages(nxt::ShaderStageBit stages);
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nxt::ShaderStageBit StageBit(nxt::ShaderStage stage);
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static constexpr nxt::ShaderStageBit kAllStages = static_cast<nxt::ShaderStageBit>((1 << kNumStages) - 1);
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template<typename T>
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class PerStage {
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public:
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T& operator[](nxt::ShaderStage stage) {
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ASSERT(static_cast<uint32_t>(stage) < kNumStages);
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return data[static_cast<uint32_t>(stage)];
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}
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const T& operator[](nxt::ShaderStage stage) const {
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ASSERT(static_cast<uint32_t>(stage) < kNumStages);
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return data[static_cast<uint32_t>(stage)];
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}
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T& operator[](nxt::ShaderStageBit stageBit) {
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uint32_t bit = static_cast<uint32_t>(stageBit);
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ASSERT(bit != 0 && IsPowerOfTwo(bit) && bit <= (1 << kNumStages));
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return data[Log2(bit)];
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}
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const T& operator[](nxt::ShaderStageBit stageBit) const {
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uint32_t bit = static_cast<uint32_t>(stageBit);
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ASSERT(bit != 0 && IsPowerOfTwo(bit) && bit <= (1 << kNumStages));
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return data[Log2(bit)];
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}
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private:
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std::array<T, kNumStages> data;
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};
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}
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#endif // BACKEND_PERSTAGE_H_
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