3c2106f064
Define a PipelineCreator interface which allows Backends to use Backend-specific heuristics in creating the DrmDisplayPipeline. Change-Id: I1f929213ce403267b539635ec9d5853cf1a7f18a
95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "drmhwc"
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#include "BackendManager.h"
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#include "hwc/HwcDisplay.h"
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#include "utils/log.h"
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#include "utils/properties.h"
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namespace android::drm_hwcomposer {
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// NOLINTNEXTLINE(cert-err58-cpp)
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const std::vector<std::string> BackendManager::kClientDevices = {
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"kirin",
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"mediatek-drm",
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"pl111",
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};
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BackendManager::PipelineCreator::PipelineCreator(const std::string &name)
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: name_(name) {
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BackendManager::GetInstance().RegisterBackend(name, this);
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}
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BackendManager::PipelineCreator::~PipelineCreator() {
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BackendManager::GetInstance().UnregisterBackend(name_);
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}
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BackendManager &BackendManager::GetInstance() {
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static BackendManager backend_manager;
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return backend_manager;
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}
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void BackendManager::RegisterBackend(const std::string &name,
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PipelineCreator *pipeline_creator) {
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available_backends_[name] = pipeline_creator;
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}
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void BackendManager::UnregisterBackend(const std::string &name) {
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available_backends_.erase(name);
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}
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std::unique_ptr<DrmDisplayPipeline> BackendManager::CreatePipelineForConnector(
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DrmConnector &connector) {
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auto driver_name(connector.GetDev().GetName());
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std::string backend_name = Properties::GetBackendOverride();
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if (backend_name.empty()) {
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backend_name = driver_name;
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}
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auto *backend = GetBackendByName(backend_name);
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if (backend == nullptr) {
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ALOGE("Failed to find backend '%s' for '%s' and driver '%s'",
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backend_name.c_str(), connector.GetName().c_str(),
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driver_name.c_str());
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return nullptr;
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}
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ALOGI("Found Backend '%s' for '%s' and driver '%s'", backend_name.c_str(),
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connector.GetName().c_str(), driver_name.c_str());
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return backend->CreatePipeline(connector);
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}
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BackendManager::PipelineCreator *BackendManager::GetBackendByName(
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std::string &name) {
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if (available_backends_.empty()) {
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ALOGE("No backends are specified");
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return nullptr;
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}
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auto it = available_backends_.find(name);
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if (it == available_backends_.end()) {
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auto it = std::find(kClientDevices.begin(), kClientDevices.end(), name);
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name = it == kClientDevices.end() ? "generic" : "client";
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}
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return available_backends_[name];
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}
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} // namespace android::drm_hwcomposer
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