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// Copyright 2018 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/Adapter.h"
#include "dawn_native/Instance.h"
namespace dawn_native {
AdapterBase::AdapterBase(InstanceBase* instance, wgpu::BackendType backend)
: mInstance(instance), mBackend(backend) {
GetDefaultLimits(&mLimits.v1);
mSupportedExtensions.EnableExtension(Extension::DawnInternalUsages);
}
wgpu::BackendType AdapterBase::GetBackendType() const {
return mBackend;
}
wgpu::AdapterType AdapterBase::GetAdapterType() const {
return mAdapterType;
}
const std::string& AdapterBase::GetDriverDescription() const {
return mDriverDescription;
}
const PCIInfo& AdapterBase::GetPCIInfo() const {
return mPCIInfo;
}
InstanceBase* AdapterBase::GetInstance() const {
return mInstance;
}
ExtensionsSet AdapterBase::GetSupportedExtensions() const {
return mSupportedExtensions;
}
bool AdapterBase::SupportsAllRequestedExtensions(
const std::vector<const char*>& requestedExtensions) const {
for (const char* extensionStr : requestedExtensions) {
Extension extensionEnum = mInstance->ExtensionNameToEnum(extensionStr);
if (extensionEnum == Extension::InvalidEnum) {
return false;
}
if (!mSupportedExtensions.IsEnabled(extensionEnum)) {
return false;
}
}
return true;
}
WGPUDeviceProperties AdapterBase::GetAdapterProperties() const {
WGPUDeviceProperties adapterProperties = {};
adapterProperties.deviceID = mPCIInfo.deviceId;
adapterProperties.vendorID = mPCIInfo.vendorId;
mSupportedExtensions.InitializeDeviceProperties(&adapterProperties);
// This is OK for now because there are no limit extension structs.
// If we add additional structs, the caller will need to provide memory
// to store them (ex. by calling GetLimits directly instead). Currently,
// we keep this function as it's only used internally in Chromium to
// send the adapter properties across the wire.
GetLimits(reinterpret_cast<SupportedLimits*>(&adapterProperties.limits));
return adapterProperties;
}
bool AdapterBase::GetLimits(SupportedLimits* limits) const {
ASSERT(limits != nullptr);
if (limits->nextInChain != nullptr) {
return false;
}
limits->limits = mLimits.v1;
return true;
}
DeviceBase* AdapterBase::CreateDevice(const DeviceDescriptor* descriptor) {
DeviceBase* result = nullptr;
if (mInstance->ConsumedError(CreateDeviceInternal(&result, descriptor))) {
return nullptr;
}
return result;
}
void AdapterBase::RequestDevice(const DeviceDescriptor* descriptor,
WGPURequestDeviceCallback callback,
void* userdata) {
DeviceBase* result = nullptr;
MaybeError err = CreateDeviceInternal(&result, descriptor);
WGPUDevice device = reinterpret_cast<WGPUDevice>(result);
if (err.IsError()) {
std::unique_ptr<ErrorData> errorData = err.AcquireError();
callback(WGPURequestDeviceStatus_Error, device, errorData->GetMessage().c_str(),
userdata);
return;
}
WGPURequestDeviceStatus status =
device == nullptr ? WGPURequestDeviceStatus_Unknown : WGPURequestDeviceStatus_Success;
callback(status, device, nullptr, userdata);
}
MaybeError AdapterBase::CreateDeviceInternal(DeviceBase** result,
const DeviceDescriptor* descriptor) {
if (descriptor != nullptr) {
if (!SupportsAllRequestedExtensions(descriptor->requiredExtensions)) {
return DAWN_VALIDATION_ERROR("One or more requested extensions are not supported");
}
}
if (descriptor != nullptr && descriptor->requiredLimits != nullptr) {
DAWN_TRY(ValidateLimits(
mLimits.v1,
reinterpret_cast<const RequiredLimits*>(descriptor->requiredLimits)->limits));
if (descriptor->requiredLimits->nextInChain != nullptr) {
return DAWN_VALIDATION_ERROR("Unsupported limit extension struct");
}
}
DAWN_TRY_ASSIGN(*result, CreateDeviceImpl(descriptor));
return {};
}
void AdapterBase::ResetInternalDeviceForTesting() {
mInstance->ConsumedError(ResetInternalDeviceForTestingImpl());
}
MaybeError AdapterBase::ResetInternalDeviceForTestingImpl() {
return DAWN_INTERNAL_ERROR(
"ResetInternalDeviceForTesting should only be used with the D3D12 backend.");
}
} // namespace dawn_native