//-----------------------------------------------------------------------------
// Copyright (c) 2013 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------

#ifndef _PLATFORMWIN32_H_
#define _PLATFORMWIN32_H_

// Sanity check for UNICODE
#ifdef TORQUE_UNICODE
#  ifndef UNICODE
#     error "ERROR: You must have UNICODE defined in your preprocessor settings (ie, /DUNICODE) if you have TORQUE_UNICODE enabled in torqueConfig.h!"
#  endif
#endif


//Luma:	add WINVER definition if it doesn't exist.. Is that our bad that it isn't on our systems already?
#ifndef	WINVER
#define WINVER  0x0500      /* version 5.0 */
#endif	//!WINVER


// define this so that we can use WM_MOUSEWHEEL messages...
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0400
#endif

#include <windows.h>
#ifndef _PLATFORM_H_
#include "platform/platform.h"
#endif

#if defined(TORQUE_COMPILER_CODEWARRIOR)
#  include <ansi_prefix.win32.h>
#  include <stdio.h>
#  include <string.h>
#else
#  include <stdio.h>
#  include <string.h>
#endif

#if defined(TORQUE_COMPILER_VISUALC) || defined(TORQUE_COMPILER_GCC2)
#define vsnprintf _vsnprintf
#define stricmp _stricmp
#define strnicmp _strnicmp
#define strupr _strupr
#define strlwr _strlwr
#endif

#define NOMINMAX

struct Win32PlatState
{
   FILE *log_fp;
   HINSTANCE hinstOpenGL;
   HINSTANCE hinstGLU;
   HINSTANCE hinstOpenAL;
   HWND appWindow;
   HDC appDC;
   HINSTANCE appInstance;
   HGLRC hGLRC;
   DWORD processId;
   bool renderThreadBlocked;
   S32 nMessagesPerFrame; // The max number of messages to dispatch per frame
   HMENU appMenu; //*** DAW: The menu bar for the window
#ifdef UNICODE
   HIMC imeHandle;
#endif

   S32 desktopBitsPixel;
   S32 desktopWidth;
   S32 desktopHeight;
   S32 desktopClientWidth;
   S32 desktopClientHeight;
   U32 currentTime;
   
   // minimum time per frame
   U32 sleepTicks;
   // are we in the background?
   bool backgrounded;

   Win32PlatState();
};

extern Win32PlatState winState;

extern bool GL_Init( const char *dllname_gl, const char *dllname_glu );
extern bool GL_EXT_Init();
extern void GL_Shutdown();

extern HWND CreateOpenGLWindow( U32 width, U32 height, bool fullScreen, bool allowSizing = true );
extern HWND CreateCurtain( U32 width, U32 height );
extern void CreatePixelFormat( PIXELFORMATDESCRIPTOR *pPFD, S32 colorBits, S32 depthBits, S32 stencilBits, bool stereo );
extern S32  ChooseBestPixelFormat( HDC hDC, PIXELFORMATDESCRIPTOR *pPFD );
extern void setModifierKeys( S32 modKeys );

#define WGLD3D_FUNCTION(fn_type, fn_name, fn_args, fn_value) extern fn_type (__stdcall *dwgl##fn_name)fn_args;
#define WGL_FUNCTION(fn_type, fn_name, fn_args, fn_value) extern fn_type (__stdcall *d##fn_name)fn_args;
#include "platformWin32/GLWinFunc.h"
#undef WGL_FUNCTION
#undef WGLD3D_FUNCTION

#define WGLEXT_FUNCTION(fn_type, fn_name, fn_args, fn_value) extern fn_type (__stdcall *d##fn_name)fn_args;
#include "platformWin32/GLWinExtFunc.h"
#undef WGLEXT_FUNCTION

#endif //_PLATFORMWIN32_H_