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/*
* Copyright (C) 2020 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_PLATFORM_DRM_GENERIC_H_
#define ANDROID_PLATFORM_DRM_GENERIC_H_
#include <drm/drm_fourcc.h>
#include <hardware/gralloc.h>
#include <map>
#include "drm/DrmDevice.h"
#include "drmhwcgralloc.h"
#ifndef DRM_FORMAT_INVALID
#define DRM_FORMAT_INVALID 0
#endif
namespace android {
class Importer {
public:
virtual ~Importer() {
}
// Imports the buffer referred to by handle into bo.
//
// Note: This can be called from a different thread than ReleaseBuffer. The
// implementation is responsible for ensuring thread safety.
virtual int ImportBuffer(hwc_drm_bo_t *bo) = 0;
// Releases the buffer object (ie: does the inverse of ImportBuffer)
//
// Note: This can be called from a different thread than ImportBuffer. The
// implementation is responsible for ensuring thread safety.
virtual int ReleaseBuffer(hwc_drm_bo_t *bo) = 0;
};
class DrmGenericImporter : public Importer {
public:
DrmGenericImporter(DrmDevice *drm);
~DrmGenericImporter() override;
int ImportBuffer(hwc_drm_bo_t *bo) override;
int ReleaseBuffer(hwc_drm_bo_t *bo) override;
int ImportHandle(uint32_t gem_handle);
int ReleaseHandle(uint32_t gem_handle);
protected:
DrmDevice *drm_;
private:
int CloseHandle(uint32_t gem_handle);
std::map<uint32_t, int> gem_refcount_;
bool has_modifier_support_;
};
} // namespace android
#endif
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