composer/gl_layer_stitch_impl.h

/*
 * Copyright (c) 2019-2020, 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
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#ifndef __GL_LAYER_STITCH_IMPL_H__
#define __GL_LAYER_STITCH_IMPL_H__

#include <sync/sync.h>

#include <vector>

#include "gl_layer_stitch.h"
#include "gl_common.h"

namespace sdm {

class GLLayerStitchImpl : public GLLayerStitch, public GLCommon {
 public:
  explicit GLLayerStitchImpl(bool secure);
  virtual ~GLLayerStitchImpl();
  virtual int Blit(const std::vector<StitchParams> &stitch_params, shared_ptr<Fence> *release_fence);
  virtual int CreateContext(bool secure);
  virtual int Init();
  virtual int Deinit();
 private:
  bool secure_ = false;
  GLContext ctx_;

  void InitContext();
  void ClearWithTransparency(const GLRect &scissor_rect);
  int NeedsGLScissor(const std::vector<StitchParams> &stitch_params);
};

}  // namespace sdm

#endif  // __GL_LAYER_STITCH_IMPL_H__