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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_H_
#define ANDROID_DRM_H_
#include <cstdint>
#include <map>
#include <tuple>
#include "DrmConnector.h"
#include "DrmCrtc.h"
#include "DrmEncoder.h"
#include "DrmFbImporter.h"
#include "utils/UniqueFd.h"
namespace android {
class DrmFbImporter;
class DrmPlane;
class DrmDevice {
public:
DrmDevice();
~DrmDevice() = default;
std::tuple<int, int> Init(const char *path, int num_displays);
int fd() const {
return fd_.Get();
}
const std::vector<std::unique_ptr<DrmConnector>> &connectors() const {
return connectors_;
}
const std::vector<std::unique_ptr<DrmPlane>> &planes() const {
return planes_;
}
std::pair<uint32_t, uint32_t> min_resolution() const {
return min_resolution_;
}
std::pair<uint32_t, uint32_t> max_resolution() const {
return max_resolution_;
}
DrmConnector *GetConnectorForDisplay(int display) const;
DrmCrtc *GetCrtcForDisplay(int display) const;
std::string GetName() const;
const std::vector<std::unique_ptr<DrmCrtc>> &crtcs() const;
uint32_t next_mode_id();
auto RegisterUserPropertyBlob(void *data, size_t length) const
-> DrmModeUserPropertyBlobUnique;
bool HandlesDisplay(int display) const;
bool HasAddFb2ModifiersSupport() const {
return HasAddFb2ModifiersSupport_;
}
DrmFbImporter &GetDrmFbImporter() {
return *mDrmFbImporter;
}
static auto IsKMSDev(const char *path) -> bool;
auto FindCrtcById(uint32_t id) const -> DrmCrtc * {
for (const auto &crtc : crtcs_) {
if (crtc->GetId() == id) {
return crtc.get();
}
};
return nullptr;
}
auto FindEncoderById(uint32_t id) const -> DrmEncoder * {
for (const auto &enc : encoders_) {
if (enc->GetId() == id) {
return enc.get();
}
};
return nullptr;
}
auto GetDisplayId(DrmConnector *conn) {
return connectors_to_display_id_.at(conn);
}
int GetProperty(uint32_t obj_id, uint32_t obj_type, const char *prop_name,
DrmProperty *property) const;
private:
int TryEncoderForDisplay(int display, DrmEncoder *enc);
int CreateDisplayPipe(DrmConnector *connector);
UniqueFd fd_;
uint32_t mode_id_ = 0;
std::vector<std::unique_ptr<DrmConnector>> connectors_;
std::vector<std::unique_ptr<DrmConnector>> writeback_connectors_;
std::vector<std::unique_ptr<DrmEncoder>> encoders_;
std::vector<std::unique_ptr<DrmCrtc>> crtcs_;
std::vector<std::unique_ptr<DrmPlane>> planes_;
std::pair<uint32_t, uint32_t> min_resolution_;
std::pair<uint32_t, uint32_t> max_resolution_;
std::map<int /*display*/, DrmCrtc *> bound_crtcs_;
std::map<int /*display*/, DrmConnector *> bound_connectors_;
std::map<DrmConnector *, int /*display*/> connectors_to_display_id_;
std::map<DrmEncoder *, int /*display*/> encoders_to_display_id_;
std::map<DrmCrtc *, DrmEncoder *> bound_encoders_;
bool HasAddFb2ModifiersSupport_{};
std::shared_ptr<DrmDevice> self;
std::unique_ptr<DrmFbImporter> mDrmFbImporter;
};
} // namespace android
#endif // ANDROID_DRM_H_
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