| // Copyright 2020 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. |
| |
| #include "dawn/native/metal/QuerySetMTL.h" |
| |
| #include "dawn/common/Math.h" |
| #include "dawn/common/Platform.h" |
| #include "dawn/native/metal/DeviceMTL.h" |
| |
| namespace dawn::native::metal { |
| |
| namespace { |
| |
| ResultOrError<id<MTLCounterSampleBuffer>> CreateCounterSampleBuffer( |
| Device* device, |
| MTLCommonCounterSet counterSet, |
| uint32_t count) API_AVAILABLE(macos(10.15), ios(14.0)) { |
| NSRef<MTLCounterSampleBufferDescriptor> descriptorRef = |
| AcquireNSRef([MTLCounterSampleBufferDescriptor new]); |
| MTLCounterSampleBufferDescriptor* descriptor = descriptorRef.Get(); |
| |
| // To determine which counters are available from a device, we need to iterate through |
| // the counterSets property of a MTLDevice. Then configure which counters will be |
| // sampled by creating a MTLCounterSampleBufferDescriptor and setting its counterSet |
| // property to the matched one of the available set. |
| for (id<MTLCounterSet> set in device->GetMTLDevice().counterSets) { |
| if ([set.name isEqualToString:counterSet]) { |
| descriptor.counterSet = set; |
| break; |
| } |
| } |
| ASSERT(descriptor.counterSet != nullptr); |
| |
| descriptor.sampleCount = static_cast<NSUInteger>(std::max(count, uint32_t(1u))); |
| descriptor.storageMode = MTLStorageModePrivate; |
| if (device->IsToggleEnabled(Toggle::MetalUseSharedModeForCounterSampleBuffer)) { |
| descriptor.storageMode = MTLStorageModeShared; |
| } |
| |
| NSError* error = nullptr; |
| id<MTLCounterSampleBuffer> counterSampleBuffer = |
| [device->GetMTLDevice() newCounterSampleBufferWithDescriptor:descriptor |
| error:&error]; |
| if (error != nullptr) { |
| return DAWN_OUT_OF_MEMORY_ERROR(std::string("Error creating query set: ") + |
| [error.localizedDescription UTF8String]); |
| } |
| |
| return counterSampleBuffer; |
| } |
| } |
| |
| // static |
| ResultOrError<Ref<QuerySet>> QuerySet::Create(Device* device, |
| const QuerySetDescriptor* descriptor) { |
| Ref<QuerySet> queryset = AcquireRef(new QuerySet(device, descriptor)); |
| DAWN_TRY(queryset->Initialize()); |
| return queryset; |
| } |
| |
| MaybeError QuerySet::Initialize() { |
| Device* device = ToBackend(GetDevice()); |
| |
| switch (GetQueryType()) { |
| case wgpu::QueryType::Occlusion: { |
| // Create buffer for writing 64-bit results. |
| NSUInteger bufferSize = static_cast<NSUInteger>( |
| std::max(GetQueryCount() * sizeof(uint64_t), size_t(4u))); |
| mVisibilityBuffer = AcquireNSPRef([device->GetMTLDevice() |
| newBufferWithLength:bufferSize |
| options:MTLResourceStorageModePrivate]); |
| |
| if (mVisibilityBuffer == nil) { |
| return DAWN_OUT_OF_MEMORY_ERROR("Failed to allocate query set."); |
| } |
| break; |
| } |
| case wgpu::QueryType::PipelineStatistics: |
| if (@available(macOS 10.15, iOS 14.0, *)) { |
| DAWN_TRY_ASSIGN(mCounterSampleBuffer, |
| CreateCounterSampleBuffer(device, MTLCommonCounterSetStatistic, |
| GetQueryCount())); |
| } else { |
| UNREACHABLE(); |
| } |
| break; |
| case wgpu::QueryType::Timestamp: |
| if (@available(macOS 10.15, iOS 14.0, *)) { |
| DAWN_TRY_ASSIGN(mCounterSampleBuffer, |
| CreateCounterSampleBuffer(device, MTLCommonCounterSetTimestamp, |
| GetQueryCount())); |
| } else { |
| UNREACHABLE(); |
| } |
| break; |
| default: |
| UNREACHABLE(); |
| break; |
| } |
| |
| return {}; |
| } |
| |
| id<MTLBuffer> QuerySet::GetVisibilityBuffer() const { |
| return mVisibilityBuffer.Get(); |
| } |
| |
| id<MTLCounterSampleBuffer> QuerySet::GetCounterSampleBuffer() const |
| API_AVAILABLE(macos(10.15), ios(14.0)) { |
| return mCounterSampleBuffer; |
| } |
| |
| QuerySet::~QuerySet() = default; |
| |
| void QuerySet::DestroyImpl() { |
| QuerySetBase::DestroyImpl(); |
| |
| mVisibilityBuffer = nullptr; |
| |
| // mCounterSampleBuffer isn't an NSRef because API_AVAILABLE doesn't work will with |
| // templates. |
| if (@available(macOS 10.15, iOS 14.0, *)) { |
| [mCounterSampleBuffer release]; |
| mCounterSampleBuffer = nullptr; |
| } |
| } |
| |
| } // namespace dawn::native::metal |