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-rw-r--r--compositor/Planner.h95
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diff --git a/compositor/Planner.h b/compositor/Planner.h
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-/*
- * Copyright (C) 2015 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.
- */
-
-#ifndef ANDROID_DRM_PLATFORM_H_
-#define ANDROID_DRM_PLATFORM_H_
-
-#include <hardware/hardware.h>
-#include <hardware/hwcomposer.h>
-
-#include <map>
-#include <memory>
-#include <vector>
-
-#include "compositor/DrmDisplayComposition.h"
-#include "drmhwcomposer.h"
-
-namespace android {
-
-class DrmDevice;
-
-class Planner {
- private:
- // Removes and returns the next available plane from planes
- static DrmPlane *PopPlane(std::vector<DrmPlane *> *planes) {
- if (planes->empty())
- return nullptr;
- DrmPlane *plane = planes->front();
- planes->erase(planes->begin());
- return plane;
- }
-
- // Inserts the given layer:plane in the composition at the back
- static int Emplace(std::vector<DrmCompositionPlane> *composition,
- std::vector<DrmPlane *> *planes,
- std::pair<size_t, DrmHwcLayer *> layer) {
- DrmPlane *plane = PopPlane(planes);
- std::vector<DrmPlane *> unused_planes;
- int ret = -ENOENT;
- while (plane != nullptr) {
- ret = plane->IsValidForLayer(layer.second) ? 0 : -EINVAL;
- if (ret == 0)
- break;
- if (!plane->GetZPosProperty().is_immutable())
- unused_planes.push_back(plane);
- plane = PopPlane(planes);
- }
-
- if (ret == 0) {
- composition->emplace_back(plane, layer.first);
- planes->insert(planes->begin(), unused_planes.begin(),
- unused_planes.end());
- }
-
- return ret;
- }
-
- static int ProvisionPlanesInternal(
- std::vector<DrmCompositionPlane> *composition,
- std::map<size_t, DrmHwcLayer *> &layers, std::vector<DrmPlane *> *planes);
-
- public:
- // Takes a stack of layers and provisions hardware planes for them. If the
- // entire stack can't fit in hardware, FIXME
- //
- // @layers: a map of index:layer of layers to composite
- // @primary_planes: a vector of primary planes available for this frame
- // @overlay_planes: a vector of overlay planes available for this frame
- //
- // Returns: A tuple with the status of the operation (0 for success) and
- // a vector of the resulting plan (ie: layer->plane mapping).
- static std::tuple<int, std::vector<DrmCompositionPlane>> ProvisionPlanes(
- std::map<size_t, DrmHwcLayer *> &layers, DrmCrtc *crtc,
- std::vector<DrmPlane *> *primary_planes,
- std::vector<DrmPlane *> *overlay_planes);
-
- private:
- static std::vector<DrmPlane *> GetUsablePlanes(
- DrmCrtc *crtc, std::vector<DrmPlane *> *primary_planes,
- std::vector<DrmPlane *> *overlay_planes);
-};
-} // namespace android
-#endif