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      1 /*
      2  * Copyright (c) 2014-2016, The Linux Foundation. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7     * Redistributions of source code must retain the above copyright
      8       notice, this list of conditions and the following disclaimer.
      9     * Redistributions in binary form must reproduce the above
     10       copyright notice, this list of conditions and the following
     11       disclaimer in the documentation and/or other materials provided
     12       with the distribution.
     13     * Neither the name of The Linux Foundation nor the names of its
     14       contributors may be used to endorse or promote products derived
     15       from this software without specific prior written permission.
     16 
     17  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
     18  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
     20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
     21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     24  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     25  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     26  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #ifndef __HWC_DISPLAY_EXTERNAL_H__
     31 #define __HWC_DISPLAY_EXTERNAL_H__
     32 
     33 #include "hwc_display.h"
     34 
     35 namespace sdm {
     36 
     37 class HWCDisplayExternal : public HWCDisplay {
     38  public:
     39   static int Create(CoreInterface *core_intf, HWCBufferAllocator *buffer_allocator,
     40                     HWCCallbacks *callbacks, uint32_t primary_width,
     41                     uint32_t primary_height, qService::QService *qservice, bool use_primary_res,
     42                     HWCDisplay **hwc_display);
     43   static int Create(CoreInterface *core_intf, HWCBufferAllocator *buffer_allocator,
     44                     HWCCallbacks *callbacks, qService::QService *qservice,
     45                     HWCDisplay **hwc_display);
     46   static void Destroy(HWCDisplay *hwc_display);
     47   virtual HWC2::Error Validate(uint32_t *out_num_types, uint32_t *out_num_requests);
     48   virtual HWC2::Error Present(int32_t *out_retire_fence);
     49   virtual void SetSecureDisplay(bool secure_display_active);
     50 
     51  private:
     52   HWCDisplayExternal(CoreInterface *core_intf, HWCBufferAllocator *buffer_allocator,
     53                      HWCCallbacks *callbacks, qService::QService *qservice);
     54   void ApplyScanAdjustment(hwc_rect_t *display_frame);
     55   static void GetDownscaleResolution(uint32_t primary_width, uint32_t primary_height,
     56                                      uint32_t *virtual_width, uint32_t *virtual_height);
     57   void GetUnderScanConfig();
     58   int underscan_width_ = 0;
     59   int underscan_height_ = 0;
     60 };
     61 
     62 }  // namespace sdm
     63 
     64 #endif  // __HWC_DISPLAY_EXTERNAL_H__
     65