sdm/libs/hwc2/hwc_display_external.h

/*
 * Copyright (c) 2014-2017, 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, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef __HWC_DISPLAY_EXTERNAL_H__
#define __HWC_DISPLAY_EXTERNAL_H__

#include "hwc_display.h"
#include "display_null.h"

namespace sdm {

class HWCDisplayExternal : public HWCDisplay {
 public:
  static int Create(CoreInterface *core_intf, HWCBufferAllocator *buffer_allocator,
                    HWCCallbacks *callbacks, uint32_t primary_width,
                    uint32_t primary_height, qService::QService *qservice, bool use_primary_res,
                    HWCDisplay **hwc_display);
  static int Create(CoreInterface *core_intf, HWCBufferAllocator *buffer_allocator,
                    HWCCallbacks *callbacks, qService::QService *qservice,
                    HWCDisplay **hwc_display);
  static void Destroy(HWCDisplay *hwc_display);
  virtual HWC2::Error Validate(uint32_t *out_num_types, uint32_t *out_num_requests);
  virtual HWC2::Error Present(int32_t *out_retire_fence);
  virtual void SetSecureDisplay(bool secure_display_active);
  virtual int SetState(bool connected);

 private:
  HWCDisplayExternal(CoreInterface *core_intf, HWCBufferAllocator *buffer_allocator,
                     HWCCallbacks *callbacks, qService::QService *qservice);
  void ApplyScanAdjustment(hwc_rect_t *display_frame);
  static void GetDownscaleResolution(uint32_t primary_width, uint32_t primary_height,
                                     uint32_t *virtual_width, uint32_t *virtual_height);

  DisplayNull display_null_;
};

}  // namespace sdm

#endif  // __HWC_DISPLAY_EXTERNAL_H__