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// Copyright 2019 The Dawn Authors
//
// 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.
#ifndef DAWNNATIVE_BINDGROUPANDSTORAGEBARRIERTRACKER_H_
#define DAWNNATIVE_BINDGROUPANDSTORAGEBARRIERTRACKER_H_
#include "dawn_native/BindGroup.h"
#include "dawn_native/BindGroupTracker.h"
namespace dawn_native {
// Extends BindGroupTrackerBase to also keep track of resources that need a usage transition.
template <bool CanInheritBindGroups, typename DynamicOffset>
class BindGroupAndStorageBarrierTrackerBase
: public BindGroupTrackerBase<CanInheritBindGroups, DynamicOffset> {
using Base = BindGroupTrackerBase<CanInheritBindGroups, DynamicOffset>;
public:
BindGroupAndStorageBarrierTrackerBase() = default;
void OnSetBindGroup(uint32_t index,
BindGroupBase* bindGroup,
uint32_t dynamicOffsetCount,
uint32_t* dynamicOffsets) {
if (this->mBindGroups[index] != bindGroup) {
mBuffers[index] = {};
mBuffersNeedingBarrier[index] = {};
const BindGroupLayoutBase* layout = bindGroup->GetLayout();
for (BindingIndex bindingIndex = 0; bindingIndex < layout->GetBindingCount();
++bindingIndex) {
const BindingInfo& bindingInfo = layout->GetBindingInfo(bindingIndex);
if ((bindingInfo.visibility & wgpu::ShaderStage::Compute) == 0) {
continue;
}
mBindingTypes[index][bindingIndex] = bindingInfo.type;
switch (bindingInfo.type) {
case wgpu::BindingType::UniformBuffer:
case wgpu::BindingType::ReadonlyStorageBuffer:
case wgpu::BindingType::Sampler:
case wgpu::BindingType::ComparisonSampler:
case wgpu::BindingType::SampledTexture:
// Don't require barriers.
break;
case wgpu::BindingType::StorageBuffer:
mBuffersNeedingBarrier[index].set(bindingIndex);
mBuffers[index][bindingIndex] =
bindGroup->GetBindingAsBufferBinding(bindingIndex).buffer;
break;
case wgpu::BindingType::StorageTexture:
case wgpu::BindingType::ReadonlyStorageTexture:
case wgpu::BindingType::WriteonlyStorageTexture:
// Not implemented.
default:
UNREACHABLE();
break;
}
}
}
Base::OnSetBindGroup(index, bindGroup, dynamicOffsetCount, dynamicOffsets);
}
protected:
std::array<std::bitset<kMaxBindingsPerGroup>, kMaxBindGroups> mBuffersNeedingBarrier = {};
std::array<std::array<wgpu::BindingType, kMaxBindingsPerGroup>, kMaxBindGroups>
mBindingTypes = {};
std::array<std::array<BufferBase*, kMaxBindingsPerGroup>, kMaxBindGroups> mBuffers = {};
};
} // namespace dawn_native
#endif // DAWNNATIVE_BINDGROUPANDSTORAGEBARRIERTRACKER_H_