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      1 /*
      2 * Copyright (c) 2016, The Linux Foundation. All rights reserved.
      3 *
      4 * Redistribution and use in source and binary forms, with or without modification, are permitted
      5 * provided that the following conditions are met:
      6 *    * Redistributions of source code must retain the above copyright notice, this list of
      7 *      conditions and the following disclaimer.
      8 *    * Redistributions in binary form must reproduce the above copyright notice, this list of
      9 *      conditions and the following disclaimer in the documentation and/or other materials provided
     10 *      with the distribution.
     11 *    * Neither the name of The Linux Foundation nor the names of its contributors may be used to
     12 *      endorse or promote products derived from this software without specific prior written
     13 *      permission.
     14 *
     15 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     17 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
     18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     19 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     21 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     22 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23 */
     24 
     25 #ifndef __HW_SCALE_H__
     26 #define __HW_SCALE_H__
     27 
     28 #include <linux/msm_mdp_ext.h>
     29 #include <private/hw_info_types.h>
     30 
     31 #include <cstring>
     32 #include <array>
     33 #include <map>
     34 
     35 namespace sdm {
     36 
     37 class HWScale {
     38  public:
     39   static DisplayError Create(HWScale **intf, bool has_qseed3);
     40   static DisplayError Destroy(HWScale *intf);
     41 
     42   virtual void SetHWScaleData(const HWScaleData &scale, uint32_t index,
     43                               mdp_layer_commit_v1 *mdp_commit, HWSubBlockType sub_block_type) = 0;
     44   virtual void* GetScaleDataRef(uint32_t index, HWSubBlockType sub_block_type) = 0;
     45   virtual void DumpScaleData(void *mdp_scale) = 0;
     46   virtual void ResetScaleParams() = 0;
     47  protected:
     48   virtual ~HWScale() { }
     49 };
     50 
     51 class HWScaleV1 : public HWScale {
     52  public:
     53   virtual void SetHWScaleData(const HWScaleData &scale, uint32_t index,
     54                               mdp_layer_commit_v1 *mdp_commit, HWSubBlockType sub_block_type);
     55   virtual void* GetScaleDataRef(uint32_t index, HWSubBlockType sub_block_type);
     56   virtual void DumpScaleData(void *mdp_scale);
     57   virtual void ResetScaleParams() { scale_data_v1_ = {}; }
     58 
     59  protected:
     60   ~HWScaleV1() {}
     61   std::array<mdp_scale_data, (kMaxSDELayers * 2)> scale_data_v1_ = {};
     62 };
     63 
     64 class HWScaleV2 : public HWScale {
     65  public:
     66   virtual void SetHWScaleData(const HWScaleData &scale, uint32_t index,
     67                               mdp_layer_commit_v1 *mdp_commit, HWSubBlockType sub_block_type);
     68   virtual void* GetScaleDataRef(uint32_t index, HWSubBlockType sub_block_type);
     69   virtual void DumpScaleData(void *mdp_scale);
     70   virtual void ResetScaleParams() { scale_data_v2_ = {}; dest_scale_data_v2_ = {}; }
     71 
     72  protected:
     73   ~HWScaleV2() {}
     74   std::array<mdp_scale_data_v2, (kMaxSDELayers * 2)> scale_data_v2_ = {};
     75   std::map<uint32_t, mdp_scale_data_v2> dest_scale_data_v2_ = {};
     76 
     77  private:
     78   uint32_t GetMDPAlphaInterpolation(HWAlphaInterpolation alpha_filter_cfg);
     79   uint32_t GetMDPScalingFilter(ScalingFilterConfig filter_cfg);
     80 };
     81 
     82 }  // namespace sdm
     83 
     84 #endif  // __HW_SCALE_H__
     85 
     86