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/*
* Copyright (C) 2022 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-composition-drm-kms-plan"
#include "DrmKmsPlan.h"
#include "drm/DrmDevice.h"
#include "drm/DrmPlane.h"
#include "utils/log.h"
namespace android {
auto DrmKmsPlan::CreateDrmKmsPlan(DrmDisplayPipeline &pipe,
std::vector<DrmHwcLayer> composition)
-> std::unique_ptr<DrmKmsPlan> {
auto plan = std::make_unique<DrmKmsPlan>();
auto avail_planes = pipe.GetUsablePlanes();
int z_pos = 0;
for (auto &dhl : composition) {
std::shared_ptr<BindingOwner<DrmPlane>> plane;
/* Skip unsupported planes */
do {
if (avail_planes.empty()) {
return {};
}
plane = *avail_planes.begin();
avail_planes.erase(avail_planes.begin());
} while (!plane->Get()->IsValidForLayer(&dhl));
LayerToPlaneJoining joining = {
.layer = std::move(dhl),
.plane = plane,
.z_pos = z_pos++,
};
plan->plan.emplace_back(std::move(joining));
}
return plan;
}
} // namespace android
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