24a7fc43eb
Currently part of header files isn't processed by CI. Signed-off-by: Roman Stratiienko <roman.o.stratiienko@globallogic.com>
105 lines
2.8 KiB
C++
105 lines
2.8 KiB
C++
/*
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* Copyright (C) 2018 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 "hwc-resource-manager"
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#include "ResourceManager.h"
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <sstream>
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#include "bufferinfo/BufferInfoGetter.h"
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#include "drm/DrmDevice.h"
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#include "drm/DrmPlane.h"
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#include "utils/log.h"
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#include "utils/properties.h"
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namespace android {
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ResourceManager::ResourceManager() : num_displays_(0) {
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}
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ResourceManager::~ResourceManager() {
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uevent_listener_.Exit();
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}
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int ResourceManager::Init() {
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char path_pattern[PROPERTY_VALUE_MAX];
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// Could be a valid path or it can have at the end of it the wildcard %
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// which means that it will try open all devices until an error is met.
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int path_len = property_get("vendor.hwc.drm.device", path_pattern,
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"/dev/dri/card%");
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int ret = 0;
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if (path_pattern[path_len - 1] != '%') {
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ret = AddDrmDevice(std::string(path_pattern));
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} else {
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path_pattern[path_len - 1] = '\0';
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for (int idx = 0; !ret; ++idx) {
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std::ostringstream path;
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path << path_pattern << idx;
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struct stat buf {};
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if (stat(path.str().c_str(), &buf))
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break;
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if (DrmDevice::IsKMSDev(path.str().c_str()))
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ret = AddDrmDevice(path.str());
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}
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}
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if (!num_displays_) {
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ALOGE("Failed to initialize any displays");
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return ret ? -EINVAL : ret;
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}
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char scale_with_gpu[PROPERTY_VALUE_MAX];
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property_get("vendor.hwc.drm.scale_with_gpu", scale_with_gpu, "0");
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scale_with_gpu_ = bool(strncmp(scale_with_gpu, "0", 1));
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if (!BufferInfoGetter::GetInstance()) {
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ALOGE("Failed to initialize BufferInfoGetter");
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return -EINVAL;
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}
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ret = uevent_listener_.Init();
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if (ret) {
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ALOGE("Can't initialize event listener %d", ret);
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return ret;
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}
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return 0;
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}
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int ResourceManager::AddDrmDevice(const std::string &path) {
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auto drm = std::make_unique<DrmDevice>();
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int displays_added = 0;
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int ret = 0;
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std::tie(ret, displays_added) = drm->Init(path.c_str(), num_displays_);
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drms_.push_back(std::move(drm));
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num_displays_ += displays_added;
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return ret;
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}
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DrmDevice *ResourceManager::GetDrmDevice(int display) {
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for (auto &drm : drms_) {
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if (drm->HandlesDisplay(display))
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return drm.get();
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}
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return nullptr;
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}
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} // namespace android
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