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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_DISPLAY_COMPOSITION_H_
#define ANDROID_DRM_DISPLAY_COMPOSITION_H_
#include <hardware/hardware.h>
#include <hardware/hwcomposer.h>
#include <sstream>
#include <vector>
#include "drm/DrmCrtc.h"
#include "drm/DrmPlane.h"
#include "drmhwcomposer.h"
namespace android {
class Importer;
class Planner;
enum DrmCompositionType {
DRM_COMPOSITION_TYPE_EMPTY,
DRM_COMPOSITION_TYPE_FRAME,
DRM_COMPOSITION_TYPE_DPMS,
DRM_COMPOSITION_TYPE_MODESET,
};
class DrmCompositionPlane {
public:
enum class Type : int32_t {
kDisable,
kLayer,
};
DrmCompositionPlane() = default;
DrmCompositionPlane(DrmCompositionPlane &&rhs) = default;
DrmCompositionPlane &operator=(DrmCompositionPlane &&other) = default;
DrmCompositionPlane(Type type, DrmPlane *plane) : type_(type), plane_(plane) {
}
DrmCompositionPlane(Type type, DrmPlane *plane, size_t source_layer)
: type_(type), plane_(plane), source_layers_(1, source_layer) {
}
Type type() const {
return type_;
}
DrmPlane *plane() const {
return plane_;
}
void set_plane(DrmPlane *plane) {
plane_ = plane;
}
std::vector<size_t> &source_layers() {
return source_layers_;
}
const std::vector<size_t> &source_layers() const {
return source_layers_;
}
private:
Type type_ = Type::kDisable;
DrmPlane *plane_ = NULL;
std::vector<size_t> source_layers_;
};
class DrmDisplayComposition {
public:
DrmDisplayComposition(const DrmDisplayComposition &) = delete;
DrmDisplayComposition(DrmCrtc *crtc, Planner *planner);
~DrmDisplayComposition() = default;
int SetLayers(DrmHwcLayer *layers, size_t num_layers, bool geometry_changed);
int AddPlaneComposition(DrmCompositionPlane plane);
int AddPlaneDisable(DrmPlane *plane);
int SetDpmsMode(uint32_t dpms_mode);
int SetDisplayMode(const DrmMode &display_mode);
int Plan(std::vector<DrmPlane *> *primary_planes,
std::vector<DrmPlane *> *overlay_planes);
std::vector<DrmHwcLayer> &layers() {
return layers_;
}
std::vector<DrmCompositionPlane> &composition_planes() {
return composition_planes_;
}
bool geometry_changed() const {
return geometry_changed_;
}
DrmCompositionType type() const {
return type_;
}
uint32_t dpms_mode() const {
return dpms_mode_;
}
const DrmMode &display_mode() const {
return display_mode_;
}
DrmCrtc *crtc() const {
return crtc_;
}
Planner *planner() const {
return planner_;
}
int take_out_fence() {
return out_fence_.Release();
}
void set_out_fence(int out_fence) {
out_fence_.Set(out_fence);
}
void Dump(std::ostringstream *out) const;
private:
bool validate_composition_type(DrmCompositionType desired);
DrmCrtc *crtc_ = NULL;
Planner *planner_ = NULL;
DrmCompositionType type_ = DRM_COMPOSITION_TYPE_EMPTY;
uint32_t dpms_mode_ = DRM_MODE_DPMS_ON;
DrmMode display_mode_;
UniqueFd out_fence_ = -1;
bool geometry_changed_ = true;
std::vector<DrmHwcLayer> layers_;
std::vector<DrmCompositionPlane> composition_planes_;
};
} // namespace android
#endif // ANDROID_DRM_DISPLAY_COMPOSITION_H_