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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.
// MetalBackend.cpp: contains the definition of symbols exported by MetalBackend.h so that they
// can be compiled twice: once export (shared library), once not exported (static library)
#include "dawn/native/MetalBackend.h"
#include "dawn/native/metal/CommandRecordingContext.h"
#include "dawn/native/metal/DeviceMTL.h"
#include "dawn/native/metal/TextureMTL.h"
namespace dawn::native::metal {
PhysicalDeviceDiscoveryOptions::PhysicalDeviceDiscoveryOptions()
: PhysicalDeviceDiscoveryOptionsBase(WGPUBackendType_Metal) {}
ExternalImageDescriptorIOSurface::ExternalImageDescriptorIOSurface()
: ExternalImageDescriptor(ExternalImageType::IOSurface) {}
ExternalImageDescriptorIOSurface::~ExternalImageDescriptorIOSurface() = default;
WGPUTexture WrapIOSurface(WGPUDevice device, const ExternalImageDescriptorIOSurface* cDescriptor) {
Device* backendDevice = ToBackend(FromAPI(device));
std::vector<MTLSharedEventAndSignalValue> waitEvents;
for (const auto& waitEvent : cDescriptor->waitEvents) {
waitEvents.push_back(
{static_cast<id<MTLSharedEvent>>(waitEvent.sharedEvent), waitEvent.signaledValue});
}
auto deviceLock(backendDevice->GetScopedLock());
Ref<TextureBase> texture = backendDevice->CreateTextureWrappingIOSurface(
cDescriptor, cDescriptor->ioSurface, std::move(waitEvents));
return ToAPI(texture.Detach());
}
void IOSurfaceEndAccess(WGPUTexture cTexture,
ExternalImageIOSurfaceEndAccessDescriptor* descriptor) {
Texture* texture = ToBackend(FromAPI(cTexture));
auto device = texture->GetDevice();
auto deviceLock(device->GetScopedLock());
texture->IOSurfaceEndAccess(descriptor);
}
void WaitForCommandsToBeScheduled(WGPUDevice device) {
Device* backendDevice = ToBackend(FromAPI(device));
auto deviceLock(backendDevice->GetScopedLock());
backendDevice->WaitForCommandsToBeScheduled();
}
} // namespace dawn::native::metal