116 lines
3.7 KiB
C++
116 lines
3.7 KiB
C++
/*
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* Copyright (C) 2016 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-platform"
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#include "Planner.h"
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#include <algorithm>
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#include "drm/DrmDevice.h"
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#include "utils/log.h"
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namespace android {
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std::unique_ptr<Planner> Planner::CreateInstance(DrmDevice * /*device*/) {
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std::unique_ptr<Planner> planner(new Planner);
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planner->AddStage<PlanStageGreedy>();
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return planner;
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}
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std::vector<DrmPlane *> Planner::GetUsablePlanes(
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DrmCrtc *crtc, std::vector<DrmPlane *> *primary_planes,
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std::vector<DrmPlane *> *overlay_planes) {
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std::vector<DrmPlane *> usable_planes;
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std::copy_if(primary_planes->begin(), primary_planes->end(),
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std::back_inserter(usable_planes),
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[=](DrmPlane *plane) { return plane->GetCrtcSupported(*crtc); });
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std::copy_if(overlay_planes->begin(), overlay_planes->end(),
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std::back_inserter(usable_planes),
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[=](DrmPlane *plane) { return plane->GetCrtcSupported(*crtc); });
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return usable_planes;
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}
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std::tuple<int, std::vector<DrmCompositionPlane>> Planner::ProvisionPlanes(
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std::map<size_t, DrmHwcLayer *> &layers, DrmCrtc *crtc,
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std::vector<DrmPlane *> *primary_planes,
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std::vector<DrmPlane *> *overlay_planes) {
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std::vector<DrmCompositionPlane> composition;
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std::vector<DrmPlane *> planes = GetUsablePlanes(crtc, primary_planes,
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overlay_planes);
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if (planes.empty()) {
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ALOGE("Display %d has no usable planes", crtc->display());
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return std::make_tuple(-ENODEV, std::vector<DrmCompositionPlane>());
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}
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// Go through the provisioning stages and provision planes
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for (auto &i : stages_) {
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int ret = i->ProvisionPlanes(&composition, layers, &planes);
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if (ret) {
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ALOGV("Failed provision stage with ret %d", ret);
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return std::make_tuple(ret, std::vector<DrmCompositionPlane>());
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}
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}
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return std::make_tuple(0, std::move(composition));
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}
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int PlanStageProtected::ProvisionPlanes(
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std::vector<DrmCompositionPlane> *composition,
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std::map<size_t, DrmHwcLayer *> &layers,
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std::vector<DrmPlane *> *planes) {
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int ret = 0;
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for (auto i = layers.begin(); i != layers.end();) {
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if (!i->second->protected_usage()) {
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++i;
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continue;
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}
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ret = Emplace(composition, planes, DrmCompositionPlane::Type::kLayer,
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std::make_pair(i->first, i->second));
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if (ret) {
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ALOGE("Failed to dedicate protected layer! Dropping it.");
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return ret;
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}
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i = layers.erase(i);
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}
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return 0;
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}
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int PlanStageGreedy::ProvisionPlanes(
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std::vector<DrmCompositionPlane> *composition,
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std::map<size_t, DrmHwcLayer *> &layers,
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std::vector<DrmPlane *> *planes) {
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// Fill up the remaining planes
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for (auto i = layers.begin(); i != layers.end(); i = layers.erase(i)) {
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int ret = Emplace(composition, planes, DrmCompositionPlane::Type::kLayer,
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std::make_pair(i->first, i->second));
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// We don't have any planes left
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if (ret == -ENOENT)
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break;
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if (ret) {
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ALOGV("Failed to emplace layer %zu, dropping it", i->first);
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return ret;
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}
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}
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return 0;
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}
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} // namespace android
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