sdm/libs/hwc/hwc_display_virtual.h

/*
* Copyright (c) 2014,2016 The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted
* provided that the following conditions are met:
*    * Redistributions of source code must retain the above copyright notice, this list of
*      conditions and the following disclaimer.
*    * Redistributions in binary form must reproduce the above copyright notice, this list of
*      conditions and the following disclaimer in the documentation and/or other materials provided
*      with the distribution.
*    * Neither the name of The Linux Foundation nor the names of its contributors may be used to
*      endorse or promote products derived from this software without specific prior written
*      permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef __HWC_DISPLAY_VIRTUAL_H__
#define __HWC_DISPLAY_VIRTUAL_H__

#include <qdMetaData.h>
#include <gralloc_priv.h>
#include "hwc_display.h"

namespace sdm {

class HWCDisplayVirtual : public HWCDisplay {
 public:
  static int Create(CoreInterface *core_intf, hwc_procs_t const **hwc_procs,
                    uint32_t primary_width, uint32_t primary_height,
                    hwc_display_contents_1_t *content_list, HWCDisplay **hwc_display);
  static void Destroy(HWCDisplay *hwc_display);
  static bool IsValidContentList(hwc_display_contents_1_t *content_list);
  virtual int Init();
  virtual int Deinit();
  virtual int Prepare(hwc_display_contents_1_t *content_list);
  virtual int Commit(hwc_display_contents_1_t *content_list);
  virtual void SetFrameDumpConfig(uint32_t count, uint32_t bit_mask_layer_type);

 private:
  HWCDisplayVirtual(CoreInterface *core_intf, hwc_procs_t const **hwc_procs);
  int SetOutputBuffer(hwc_display_contents_1_t *content_list);
  int SetOutputSliceFromMetadata(hwc_display_contents_1_t *content_list);
  void CommitOutputBufferParams(hwc_display_contents_1_t *content_list);

  bool dump_output_layer_ = false;
  LayerBuffer *output_buffer_ = NULL;
};

inline bool HWCDisplayVirtual::IsValidContentList(hwc_display_contents_1_t *content_list) {
  return (content_list && content_list->numHwLayers > 0 && content_list->outbuf);
}

}  // namespace sdm

#endif  // __HWC_DISPLAY_VIRTUAL_H__