cocoa_v.h

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/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <https://www.gnu.org/licenses/old-licenses/gpl-2.0>.
 */

 
#ifndef VIDEO_COCOA_H
#define VIDEO_COCOA_H
 
#include "../video_driver.hpp"
#include "../../core/geometry_type.hpp"
 
 
extern bool _cocoa_video_started;
 
@class OTTD_CocoaWindowDelegate;
@class OTTD_CocoaWindow;
@class OTTD_CocoaView;
 
class VideoDriver_Cocoa : public VideoDriver {
private:
  Dimension orig_res;       
  bool refresh_sys_sprites; 
 
public:
  bool setup; 
 
  OTTD_CocoaWindow *window;    
  OTTD_CocoaView *cocoaview;   
  CGColorSpaceRef colour_space; 
 
  OTTD_CocoaWindowDelegate *delegate; 
 
public:
  VideoDriver_Cocoa(bool uses_hardware_acceleration = false);
 
  void Stop() override;
  void MainLoop() override;
 
  void MakeDirty(int left, int top, int width, int height) override;
  bool AfterBlitterChange() override;
 
  bool ChangeResolution(int w, int h) override;
  bool ToggleFullscreen(bool fullscreen) override;
 
  void ClearSystemSprites() override;
  void PopulateSystemSprites() override;
 
  void EditBoxLostFocus() override;
 
  std::vector<int> GetListOfMonitorRefreshRates() override;
 
  /* --- The following methods should be private, but can't be due to Obj-C limitations. --- */
 
  void MainLoopReal();

  virtual void AllocateBackingStore(bool force = false) = 0;
 
protected:
  Rect dirty_rect;    
  bool buffer_locked; 
 
  Dimension GetScreenSize() const override;
  void InputLoop() override;
  bool LockVideoBuffer() override;
  void UnlockVideoBuffer() override;
  bool PollEvent() override;
 
  void GameSizeChanged();
 
  std::optional<std::string_view> Initialize();
 
  void UpdateVideoModes();
 
  bool MakeWindow(int width, int height);

  virtual NSView *AllocateDrawView() = 0;

  virtual void *GetVideoPointer() = 0;
  virtual void ReleaseVideoPointer() {}
 
private:
  bool IsFullscreen();
};
 
class VideoDriver_CocoaQuartz : public VideoDriver_Cocoa {
private:
  int buffer_depth;     
  std::unique_ptr<uint8_t[]> pixel_buffer; 
  std::unique_ptr<uint32_t[]> window_buffer; 
 
  int window_width;     
  int window_height;    
  int window_pitch;
 
  uint32_t palette[256];  
 
  void BlitIndexedToView32(int left, int top, int right, int bottom);
  void UpdatePalette(uint first_colour, uint num_colours);
 
public:
  CGContextRef cgcontext;      
 
  VideoDriver_CocoaQuartz();
 
  std::optional<std::string_view> Start(const StringList &param) override;
  void Stop() override;

  std::string_view GetName() const override { return "cocoa"; }
 
  void AllocateBackingStore(bool force = false) override;
 
protected:
  void Paint() override;
  void CheckPaletteAnim() override;
 
  NSView *AllocateDrawView() override;
 
  void *GetVideoPointer() override { return this->buffer_depth == 8 ? static_cast<void *>(this->pixel_buffer.get()) : static_cast<void *>(this->window_buffer.get()); }
};
 
class FVideoDriver_CocoaQuartz : public DriverFactoryBase {
public:
  FVideoDriver_CocoaQuartz() : DriverFactoryBase(Driver::DT_VIDEO, 8, "cocoa", "Cocoa Video Driver") {}
  std::unique_ptr<Driver> CreateInstance() const override { return std::make_unique<VideoDriver_CocoaQuartz>(); }
};
 
#endif /* VIDEO_COCOA_H */