/*
 * 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
 * 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_VIRTUAL_GPU_H__
#define __HWC_DISPLAY_VIRTUAL_GPU_H__

#include "utils/sync_task.h"
#include "hwc_display_virtual.h"
#include "gl_color_convert.h"

namespace sdm {

enum class ColorConvertTaskCode : int32_t {
  kCodeGetInstance,
  kCodeBlit,
  kCodeReset,
  kCodeDestroyInstance,
};

struct ColorConvertGetInstanceContext : public SyncTask<ColorConvertTaskCode>::TaskContext {
  LayerBuffer *output_buffer = NULL;
};

struct ColorConvertBlitContext : public SyncTask<ColorConvertTaskCode>::TaskContext {
  const private_handle_t* src_hnd = nullptr;
  const private_handle_t* dst_hnd = nullptr;
  GLRect src_rect = {};
  GLRect dst_rect = {};
  shared_ptr<Fence> src_acquire_fence = nullptr;
  shared_ptr<Fence> dst_acquire_fence = nullptr;
  shared_ptr<Fence> release_fence = nullptr;
};

class HWCDisplayVirtualGPU : public HWCDisplayVirtual,
                             public SyncTask<ColorConvertTaskCode>::TaskHandler {
 public:
  HWCDisplayVirtualGPU(CoreInterface *core_intf, HWCBufferAllocator *buffer_allocator,
                       HWCCallbacks *callbacks, hwc2_display_t id, int32_t sdm_id,
                       uint32_t width, uint32_t height, float min_lum, float max_lum);
  virtual int Init();
  virtual int Deinit();
  virtual HWC2::Error Validate(uint32_t *out_num_types, uint32_t *out_num_requests);
  virtual HWC2::Error Present(shared_ptr<Fence> *out_retire_fence);
  virtual HWC2::Error SetOutputBuffer(buffer_handle_t buf, shared_ptr<Fence> release_fence);
  virtual bool FreezeScreen();

 private:
  // SyncTask methods.
  void OnTask(const ColorConvertTaskCode &task_code,
              SyncTask<ColorConvertTaskCode>::TaskContext *task_context);

  SyncTask<ColorConvertTaskCode> color_convert_task_;
  GLColorConvert *gl_color_convert_;

  bool disable_animation_ = false;
  bool animation_in_progress_ = false;
};

}  // namespace sdm

#endif  // __HWC_DISPLAY_VIRTUAL_GPU_H__