/** @file

Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution.  The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

Module Name:

  WinGop.h

Abstract:

  Private data for the Gop driver that is bound to the WinNt Thunk protocol


**/

#ifndef _WIN_GOP_H_
#define _WIN_GOP_H_


#include "WinHost.h"

#include <Protocol/EmuIoThunk.h>
#include <Protocol/EmuGraphicsWindow.h>
#include <Protocol/SimpleTextIn.h>
#include <Protocol/SimpleTextInEx.h>
#include <Protocol/GraphicsOutput.h>
#include <Library/FrameBufferBltLib.h>

//
// WM_SYSKEYDOWN/WM_SYSKEYUP Notification
// lParam
// bit 24: Specifies whether the key is an extended key,
// such as the right-hand ALT and CTRL keys that appear on
// an enhanced 101- or 102-key keyboard.
// The value is 1 if it is an extended key; otherwise, it is 0.
// bit 29:Specifies the context code.
// The value is 1 if the ALT key is down while the key is pressed/released;
// it is 0 if the WM_SYSKEYDOWN message is posted to the active window
// because no window has the keyboard focus.
#define GOP_EXTENDED_KEY         (0x1 << 24)
#define GOP_ALT_KEY_PRESSED      (0x1 << 29)

#define KEYBOARD_TIMER_INTERVAL         200000  // 0.02s

#define MAX_Q 256

typedef struct {
  UINTN             Front;
  UINTN             Rear;
  EFI_KEY_DATA      Q[MAX_Q];
  CRITICAL_SECTION  Cs;
} GOP_QUEUE_FIXED;

#define WIN_NT_GOP_CLASS_NAME       L"WinNtGopWindow"


typedef struct {
  UINT64                        Signature;
  EMU_GRAPHICS_WINDOW_PROTOCOL  GraphicsWindowIo;

  //
  // GOP Private Data knowing when to start hardware
  //
  BOOLEAN                       HardwareNeedsStarting;

  CHAR16                        *WindowName;
  CHAR16                        Buffer[160];

  HANDLE                        ThreadInited; // Semaphore
  HANDLE                        ThreadHandle; // Thread
  DWORD                         ThreadId;

  HWND                          WindowHandle;
  WNDCLASSEX                    WindowsClass;

  UINT32                        Width;
  UINT32                        Height;
  //
  // This screen is used to redraw the scree when windows events happen. It's
  // updated in the main thread and displayed in the windows thread.
  //
  BITMAPV4HEADER                *VirtualScreenInfo;

  FRAME_BUFFER_CONFIGURE        *FrameBufferConfigure;

  //
  // Keyboard Queue used by Simple Text In.
  // QueueForRead:   WinProc thread adds, and main thread removes.
  //
  GOP_QUEUE_FIXED               QueueForRead;

  EMU_GRAPHICS_WINDOW_REGISTER_KEY_NOTIFY_CALLBACK    MakeRegisterdKeyCallback;
  EMU_GRAPHICS_WINDOW_REGISTER_KEY_NOTIFY_CALLBACK    BreakRegisterdKeyCallback;
  VOID                                                *RegisterdKeyCallbackContext;

  EFI_KEY_STATE                     KeyState;
  BOOLEAN                           LeftShift;
  BOOLEAN                           RightShift;
  BOOLEAN                           LeftAlt;
  BOOLEAN                           RightAlt;
  BOOLEAN                           LeftCtrl;
  BOOLEAN                           RightCtrl;
  BOOLEAN                           LeftLogo;
  BOOLEAN                           RightLogo;
  BOOLEAN                           Menu;
  BOOLEAN                           SysReq;
  BOOLEAN                           NumLock;
  BOOLEAN                           ScrollLock;
  BOOLEAN                           CapsLock;
  BOOLEAN                           IsPartialKeySupport;
} GRAPHICS_PRIVATE_DATA;
#define GRAPHICS_PRIVATE_DATA_SIGNATURE  SIGNATURE_32 ('g', 'f', 'x', 'd')
#define GRAPHICS_PRIVATE_DATA_FROM_THIS(a)  \
         CR(a, GRAPHICS_PRIVATE_DATA, GraphicsWindowIo, GRAPHICS_PRIVATE_DATA_SIGNATURE)


//
// Gop Hardware abstraction internal worker functions
//

/**
  TODO: Add function description

  @param  Private              TODO: add argument description
  @param  Key                  TODO: add argument description

  @return TODO: add return values

**/
EFI_STATUS
GopPrivateAddKey (
  IN  GRAPHICS_PRIVATE_DATA    *Private,
  IN  EFI_INPUT_KEY            Key
  );

EFI_STATUS
EFIAPI
WinNtWndGetKey (
  IN  EMU_GRAPHICS_WINDOW_PROTOCOL  *GraphicsIo,
  IN  EFI_KEY_DATA                  *KeyData
  );

EFI_STATUS
EFIAPI
WinNtWndCheckKey (
  IN  EMU_GRAPHICS_WINDOW_PROTOCOL *GraphicsIo
  );

EFI_STATUS
EFIAPI
WinNtWndKeySetState (
  IN EMU_GRAPHICS_WINDOW_PROTOCOL   *GraphicsIo,
  IN EFI_KEY_TOGGLE_STATE           *KeyToggleState
  );

EFI_STATUS
EFIAPI
WinNtWndRegisterKeyNotify (
  IN EMU_GRAPHICS_WINDOW_PROTOCOL                        *GraphicsIo,
  IN EMU_GRAPHICS_WINDOW_REGISTER_KEY_NOTIFY_CALLBACK    MakeCallBack,
  IN EMU_GRAPHICS_WINDOW_REGISTER_KEY_NOTIFY_CALLBACK    BreakCallBack,
  IN VOID                                                *Context
  );

EFI_STATUS
EFIAPI
WinNtWndCheckPointer (
  IN  EMU_GRAPHICS_WINDOW_PROTOCOL *GraphicsIo
  );

EFI_STATUS
EFIAPI
WinNtWndGetPointerState (
  IN  EMU_GRAPHICS_WINDOW_PROTOCOL  *GraphicsIo,
  IN  EFI_SIMPLE_POINTER_STATE      *State
  );
EFI_STATUS
GopPrivateCreateQ (
  IN  GRAPHICS_PRIVATE_DATA    *Private,
  IN GOP_QUEUE_FIXED           *Queue
  );


/**
  TODO: Add function description

  @param  Private               TODO: add argument description

  @retval EFI_SUCCESS           TODO: Add description for return value

**/
EFI_STATUS
GopPrivateDestroyQ (
  IN  GRAPHICS_PRIVATE_DATA    *Private,
  IN GOP_QUEUE_FIXED           *Queue
  );
#endif