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// Copyright 2021 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/wire/client/Adapter.h"
#include "dawn/common/Log.h"
#include "dawn/wire/client/Client.h"
namespace dawn::wire::client {
Adapter::~Adapter() {
mRequestDeviceRequests.CloseAll([](RequestDeviceData* request) {
request->callback(WGPURequestDeviceStatus_Unknown, nullptr,
"Adapter destroyed before callback", request->userdata);
});
}
void Adapter::CancelCallbacksForDisconnect() {
mRequestDeviceRequests.CloseAll([](RequestDeviceData* request) {
request->callback(WGPURequestDeviceStatus_Unknown, nullptr, "GPU connection lost",
request->userdata);
});
}
bool Adapter::GetLimits(WGPUSupportedLimits* limits) const {
return mLimitsAndFeatures.GetLimits(limits);
}
bool Adapter::HasFeature(WGPUFeatureName feature) const {
return mLimitsAndFeatures.HasFeature(feature);
}
size_t Adapter::EnumerateFeatures(WGPUFeatureName* features) const {
return mLimitsAndFeatures.EnumerateFeatures(features);
}
void Adapter::SetLimits(const WGPUSupportedLimits* limits) {
return mLimitsAndFeatures.SetLimits(limits);
}
void Adapter::SetFeatures(const WGPUFeatureName* features, uint32_t featuresCount) {
return mLimitsAndFeatures.SetFeatures(features, featuresCount);
}
void Adapter::SetProperties(const WGPUAdapterProperties* properties) {
mProperties = *properties;
mProperties.nextInChain = nullptr;
}
void Adapter::GetProperties(WGPUAdapterProperties* properties) const {
*properties = mProperties;
}
void Adapter::RequestDevice(const WGPUDeviceDescriptor* descriptor,
WGPURequestDeviceCallback callback,
void* userdata) {
Client* client = GetClient();
if (client->IsDisconnected()) {
callback(WGPURequestDeviceStatus_Error, nullptr, "GPU connection lost", userdata);
return;
}
// The descriptor is passed so that the deviceLostCallback can be tracked client-side and called
// when the device is lost.
Device* device = client->Make<Device>(descriptor);
uint64_t serial = mRequestDeviceRequests.Add({callback, device->GetWireId(), userdata});
// Ensure the device lost callback isn't serialized as part of the command, as it cannot be
// passed between processes.
WGPUDeviceDescriptor wireDescriptor = {};
if (descriptor) {
wireDescriptor = *descriptor;
wireDescriptor.deviceLostCallback = nullptr;
wireDescriptor.deviceLostUserdata = nullptr;
}
AdapterRequestDeviceCmd cmd;
cmd.adapterId = GetWireId();
cmd.requestSerial = serial;
cmd.deviceObjectHandle = device->GetWireHandle();
cmd.descriptor = &wireDescriptor;
client->SerializeCommand(cmd);
}
bool Client::DoAdapterRequestDeviceCallback(Adapter* adapter,
uint64_t requestSerial,
WGPURequestDeviceStatus status,
const char* message,
const WGPUSupportedLimits* limits,
uint32_t featuresCount,
const WGPUFeatureName* features) {
// May have been deleted or recreated so this isn't an error.
if (adapter == nullptr) {
return true;
}
return adapter->OnRequestDeviceCallback(requestSerial, status, message, limits, featuresCount,
features);
}
bool Adapter::OnRequestDeviceCallback(uint64_t requestSerial,
WGPURequestDeviceStatus status,
const char* message,
const WGPUSupportedLimits* limits,
uint32_t featuresCount,
const WGPUFeatureName* features) {
RequestDeviceData request;
if (!mRequestDeviceRequests.Acquire(requestSerial, &request)) {
return false;
}
Client* client = GetClient();
Device* device = client->Get<Device>(request.deviceObjectId);
// If the return status is a failure we should give a null device to the callback and
// free the allocation.
if (status != WGPURequestDeviceStatus_Success) {
client->Free(device);
request.callback(status, nullptr, message, request.userdata);
return true;
}
device->SetLimits(limits);
device->SetFeatures(features, featuresCount);
request.callback(status, ToAPI(device), message, request.userdata);
return true;
}
WGPUInstance Adapter::GetInstance() const {
dawn::ErrorLog() << "adapter.GetInstance not supported with dawn_wire.";
return nullptr;
}
WGPUDevice Adapter::CreateDevice(const WGPUDeviceDescriptor*) {
dawn::ErrorLog() << "adapter.CreateDevice not supported with dawn_wire.";
return nullptr;
}
} // namespace dawn::wire::client