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Diffstat (limited to 'backend/backendmanager.cpp')
-rw-r--r-- | backend/backendmanager.cpp | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/backend/backendmanager.cpp b/backend/backendmanager.cpp new file mode 100644 index 0000000..80ec827 --- /dev/null +++ b/backend/backendmanager.cpp @@ -0,0 +1,80 @@ +/* + * Copyright (C) 2020 The Android Open Source Project + * + * 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. + */ + +#define LOG_TAG "hwc-backend" + +#include "backendmanager.h" +#include "backend.h" +#include "drmhwctwo.h" + +#include <cutils/properties.h> +#include <log/log.h> + +namespace android { + +const std::vector<std::string> BackendManager::client_devices_ = { + "kirin", +}; + +BackendManager &BackendManager::GetInstance() { + static BackendManager backend_manager; + + return backend_manager; +} + +int BackendManager::RegisterBackend(const std::string &name, + backend_constructor_t backend_constructor) { + available_backends_[name] = std::move(backend_constructor); + return 0; +} + +int BackendManager::SetBackendForDisplay(DrmHwcTwo::HwcDisplay *display) { + std::string driver_name(display->drm()->GetName()); + char backend_override[PROPERTY_VALUE_MAX]; + property_get("vendor.hwc.backend_override", backend_override, + driver_name.c_str()); + std::string backend_name(std::move(backend_override)); + + display->set_backend(GetBackendByName(backend_name)); + if (!display->backend()) { + ALOGE("Failed to set backend '%s' for '%s' and driver '%s'", + backend_name.c_str(), display->connector()->name().c_str(), + driver_name.c_str()); + return -EINVAL; + } + + ALOGI("Backend '%s' for '%s' and driver '%s' was successfully set", + backend_name.c_str(), display->connector()->name().c_str(), + driver_name.c_str()); + + return 0; +} + +std::unique_ptr<Backend> BackendManager::GetBackendByName(std::string &name) { + if (!available_backends_.size()) { + ALOGE("No backends are specified"); + return nullptr; + } + + auto it = available_backends_.find(name); + if (it == available_backends_.end()) { + auto it = std::find(client_devices_.begin(), client_devices_.end(), name); + name = it == client_devices_.end() ? "generic" : "client"; + } + + return available_backends_[name](); +} +} // namespace android |