/*
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* drm_device.h - DRM Device Implementation
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*
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* Copyright (c) 2021 Rockchip Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#ifndef _DRM_DEVICE_H_
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#define _DRM_DEVICE_H_
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#include <stdint.h>
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#include <memory>
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#include "unique_fd.h"
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#include "xcam_common.h"
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extern "C" {
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#define RKCAM_MAX_DRM_PLANES 4
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struct DrmDumbObject {
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uint32_t drm_format;
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uint32_t width;
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uint32_t height;
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int num_planes;
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int strides[RKCAM_MAX_DRM_PLANES];
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uint32_t offsets[RKCAM_MAX_DRM_PLANES];
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int fds[RKCAM_MAX_DRM_PLANES];
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uint32_t handles[RKCAM_MAX_DRM_PLANES];
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size_t sizes[RKCAM_MAX_DRM_PLANES];
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};
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};
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namespace XCam {
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class DrmDevice {
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public:
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DrmDevice();
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~DrmDevice();
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DrmDevice(const DrmDevice&) = delete;
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DrmDevice& operator=(const DrmDevice&) = delete;
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static bool Available();
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std::unique_ptr<DrmDumbObject> CreateDumbObject(unsigned int width, unsigned int height,
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unsigned int bpp = 8,
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unsigned int num_planes = 1);
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XCamReturn DestroyDumbObject(const std::unique_ptr<DrmDumbObject>& bo);
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XCamReturn RequestMapDumbObject(const std::unique_ptr<DrmDumbObject>& bo,
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unsigned int plane = 0);
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private:
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int Open();
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void Close();
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UniqueFd fd_;
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};
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}; // namespace XCam
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#endif // _DRM_DEVICE_H_
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