/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2010 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#include "SDL_main.h"
#include "SDL_video.h"
#include "SDL_mouse.h"
#include "../SDL_sysvideo.h"
#include "../SDL_pixels_c.h"

#include "SDL_windowsvideo.h"
#include "SDL_windowsshape.h"
#include "SDL_d3drender.h"
#include "SDL_gdirender.h"
#include "SDL_gapirender.h"

/* Initialization/Query functions */
static int WIN_VideoInit(_THIS);
static void WIN_VideoQuit(_THIS);

/* Sets an error message based on GetLastError() */
void
WIN_SetError(const char *prefix)
{
    TCHAR buffer[1024];
    char *message;
    FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), 0,
                  buffer, SDL_arraysize(buffer), NULL);
    message = WIN_StringToUTF8(buffer);
    SDL_SetError("%s%s%s", prefix ? prefix : "", prefix ? ": " : "", message);
    SDL_free(message);
}


/* Windows driver bootstrap functions */

static int
WIN_Available(void)
{
    return (1);
}

static void
WIN_DeleteDevice(SDL_VideoDevice * device)
{
    SDL_VideoData *data = (SDL_VideoData *) device->driverdata;

    SDL_UnregisterApp();
#if SDL_VIDEO_RENDER_D3D
    if (data->d3d) {
        IDirect3D9_Release(data->d3d);
        FreeLibrary(data->d3dDLL);
    }
#endif
#if SDL_VIDEO_RENDER_DDRAW
    if (data->ddraw) {
        data->ddraw->lpVtbl->Release(data->ddraw);
        FreeLibrary(data->ddrawDLL);
    }
#endif
#ifdef _WIN32_WCE
    if(data->hAygShell) {
       FreeLibrary(data->hAygShell);
    }
#endif
	if (data->userDLL) {
		FreeLibrary(data->userDLL);
	}

    SDL_free(device->driverdata);
    SDL_free(device);
}

static SDL_VideoDevice *
WIN_CreateDevice(int devindex)
{
    SDL_VideoDevice *device;
    SDL_VideoData *data;

    SDL_RegisterApp(NULL, 0, NULL);

    /* Initialize all variables that we clean on shutdown */
    device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
    if (device) {
        data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
    } else {
        data = NULL;
    }
    if (!data) {
        SDL_OutOfMemory();
        if (device) {
            SDL_free(device);
        }
        return NULL;
    }
    device->driverdata = data;

#if SDL_VIDEO_RENDER_D3D
    data->d3dDLL = LoadLibrary(TEXT("D3D9.DLL"));
    if (data->d3dDLL) {
        IDirect3D9 *(WINAPI * D3DCreate) (UINT SDKVersion);

        D3DCreate =
            (IDirect3D9 * (WINAPI *) (UINT)) GetProcAddress(data->d3dDLL,
                                                            "Direct3DCreate9");
        if (D3DCreate) {
            data->d3d = D3DCreate(D3D_SDK_VERSION);
        }
        if (!data->d3d) {
            FreeLibrary(data->d3dDLL);
            data->d3dDLL = NULL;
        }
    }
#endif /* SDL_VIDEO_RENDER_D3D */
#if SDL_VIDEO_RENDER_DDRAW
    data->ddrawDLL = LoadLibrary(TEXT("ddraw.dll"));
    if (data->ddrawDLL) {
        IDirectDraw *(WINAPI * DDCreate) (GUID FAR * lpGUID,
                                          LPDIRECTDRAW FAR * lplpDD,
                                          IUnknown FAR * pUnkOuter);

        DDCreate =
            (IDirectDraw *
             (WINAPI *) (GUID FAR *, LPDIRECTDRAW FAR *, IUnknown FAR *))
            GetProcAddress(data->ddrawDLL, TEXT("DirectDrawCreate"));
        if (!DDCreate || DDCreate(NULL, &data->ddraw, NULL) != DD_OK) {
            FreeLibrary(data->ddrawDLL);
            data->ddrawDLL = NULL;
            data->ddraw = NULL;
        }
    }
#endif /* SDL_VIDEO_RENDER_DDRAW */

#ifdef _WIN32_WCE
    data->hAygShell = LoadLibrary(TEXT("\\windows\\aygshell.dll"));
    if(0 == data->hAygShell)
        data->hAygShell = LoadLibrary(TEXT("aygshell.dll"));
    data->SHFullScreen = (0 != data->hAygShell ?
        (PFNSHFullScreen) GetProcAddress(data->hAygShell, TEXT("SHFullScreen")) : 0);
    data->CoordTransform = NULL;
#endif

	data->userDLL = LoadLibrary(TEXT("USER32.DLL"));
	if (data->userDLL) {
		data->CloseTouchInputHandle = (BOOL (WINAPI *)( HTOUCHINPUT )) GetProcAddress(data->userDLL, "CloseTouchInputHandle");
		data->GetTouchInputInfo = (BOOL (WINAPI *)( HTOUCHINPUT, UINT, PTOUCHINPUT, int )) GetProcAddress(data->userDLL, "GetTouchInputInfo");
		data->RegisterTouchWindow = (BOOL (WINAPI *)( HWND, ULONG )) GetProcAddress(data->userDLL, "RegisterTouchWindow");
	}

    /* Set the function pointers */
    device->VideoInit = WIN_VideoInit;
    device->VideoQuit = WIN_VideoQuit;
    device->GetDisplayBounds = WIN_GetDisplayBounds;
    device->GetDisplayModes = WIN_GetDisplayModes;
    device->SetDisplayMode = WIN_SetDisplayMode;
    device->SetDisplayGammaRamp = WIN_SetDisplayGammaRamp;
    device->GetDisplayGammaRamp = WIN_GetDisplayGammaRamp;
    device->PumpEvents = WIN_PumpEvents;

#undef CreateWindow
    device->CreateWindow = WIN_CreateWindow;
    device->CreateWindowFrom = WIN_CreateWindowFrom;
    device->SetWindowTitle = WIN_SetWindowTitle;
    device->SetWindowIcon = WIN_SetWindowIcon;
    device->SetWindowPosition = WIN_SetWindowPosition;
    device->SetWindowSize = WIN_SetWindowSize;
    device->ShowWindow = WIN_ShowWindow;
    device->HideWindow = WIN_HideWindow;
    device->RaiseWindow = WIN_RaiseWindow;
    device->MaximizeWindow = WIN_MaximizeWindow;
    device->MinimizeWindow = WIN_MinimizeWindow;
    device->RestoreWindow = WIN_RestoreWindow;
    device->SetWindowGrab = WIN_SetWindowGrab;
    device->DestroyWindow = WIN_DestroyWindow;
    device->GetWindowWMInfo = WIN_GetWindowWMInfo;
    
    device->shape_driver.CreateShaper = Win32_CreateShaper;
    device->shape_driver.SetWindowShape = Win32_SetWindowShape;
    device->shape_driver.ResizeWindowShape = Win32_ResizeWindowShape;
    
#ifdef SDL_VIDEO_OPENGL_WGL
    device->GL_LoadLibrary = WIN_GL_LoadLibrary;
    device->GL_GetProcAddress = WIN_GL_GetProcAddress;
    device->GL_UnloadLibrary = WIN_GL_UnloadLibrary;
    device->GL_CreateContext = WIN_GL_CreateContext;
    device->GL_MakeCurrent = WIN_GL_MakeCurrent;
    device->GL_SetSwapInterval = WIN_GL_SetSwapInterval;
    device->GL_GetSwapInterval = WIN_GL_GetSwapInterval;
    device->GL_SwapWindow = WIN_GL_SwapWindow;
    device->GL_DeleteContext = WIN_GL_DeleteContext;
#endif
    device->StartTextInput = WIN_StartTextInput;
    device->StopTextInput = WIN_StopTextInput;
    device->SetTextInputRect = WIN_SetTextInputRect;

    device->SetClipboardText = WIN_SetClipboardText;
    device->GetClipboardText = WIN_GetClipboardText;
    device->HasClipboardText = WIN_HasClipboardText;

    device->free = WIN_DeleteDevice;

    return device;
}

VideoBootStrap WINDOWS_bootstrap = {
#ifdef _WIN32_WCE
    "wince", "SDL WinCE video driver", WINCE_Available, WIN_CreateDevice
#else
    "windows", "SDL Win32/64 video driver", WIN_Available, WIN_CreateDevice
#endif
};

int
WIN_VideoInit(_THIS)
{
    if (WIN_InitModes(_this) < 0) {
        return -1;
    }

#if SDL_VIDEO_RENDER_D3D
    D3D_AddRenderDriver(_this);
#endif
#if SDL_VIDEO_RENDER_DDRAW
    DDRAW_AddRenderDriver(_this);
#endif
#if SDL_VIDEO_RENDER_GDI
    GDI_AddRenderDriver(_this);
#endif
#if SDL_VIDEO_RENDER_GAPI
    WINCE_AddRenderDriver(_this);
#endif

    WIN_InitKeyboard(_this);
    WIN_InitMouse(_this);

    return 0;
}

void
WIN_VideoQuit(_THIS)
{
    WIN_QuitModes(_this);
    WIN_QuitKeyboard(_this);
    WIN_QuitMouse(_this);
}

/* vim: set ts=4 sw=4 expandtab: */