--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/windib/SDL_dibvideo.c	Thu Apr 26 16:45:43 2001 +0000
@@ -0,0 +1,925 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997, 1998, 1999  Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Sam Lantinga
+    slouken@devolution.com
+*/
+
+#ifdef SAVE_RCSID
+static char rcsid =
+ "@(#) $Id$";
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <malloc.h>
+#include <windows.h>
+
+/* Not yet in the mingw32 cross-compile headers */
+#ifndef CDS_FULLSCREEN
+#define CDS_FULLSCREEN	4
+#endif
+
+#include "SDL.h"
+#include "SDL_mutex.h"
+#include "SDL_syswm.h"
+#include "SDL_sysvideo.h"
+#include "SDL_sysevents.h"
+#include "SDL_events_c.h"
+#include "SDL_pixels_c.h"
+#include "SDL_dibvideo.h"
+#include "SDL_syswm_c.h"
+#include "SDL_sysmouse_c.h"
+#include "SDL_dibevents_c.h"
+#include "SDL_wingl_c.h"
+
+#ifdef _WIN32_WCE
+#define NO_GETDIBITS
+#define NO_CHANGEDISPLAYSETTINGS
+#define NO_GAMMA_SUPPORT
+#endif
+
+/* Initialization/Query functions */
+static int DIB_VideoInit(_THIS, SDL_PixelFormat *vformat);
+static SDL_Rect **DIB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
+SDL_Surface *DIB_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
+static int DIB_SetColors(_THIS, int firstcolor, int ncolors,
+			 SDL_Color *colors);
+static void DIB_CheckGamma(_THIS);
+static void DIB_SwapGamma(_THIS);
+static void DIB_QuitGamma(_THIS);
+#ifndef NO_GAMMA_SUPPORT
+static int DIB_SetGammaRamp(_THIS, Uint16 *ramp);
+static int DIB_GetGammaRamp(_THIS, Uint16 *ramp);
+#endif
+static void DIB_VideoQuit(_THIS);
+
+/* Hardware surface functions */
+static int DIB_AllocHWSurface(_THIS, SDL_Surface *surface);
+static int DIB_LockHWSurface(_THIS, SDL_Surface *surface);
+static void DIB_UnlockHWSurface(_THIS, SDL_Surface *surface);
+static void DIB_FreeHWSurface(_THIS, SDL_Surface *surface);
+
+/* Windows message handling functions */
+static void DIB_RealizePalette(_THIS);
+static void DIB_PaletteChanged(_THIS, HWND window);
+static void DIB_WinPAINT(_THIS, HDC hdc);
+
+/* helper fn */
+static int DIB_SussScreenDepth();
+
+/* DIB driver bootstrap functions */
+
+static int DIB_Available(void)
+{
+	return(1);
+}
+
+static void DIB_DeleteDevice(SDL_VideoDevice *device)
+{
+	if ( device ) {
+		if ( device->hidden ) {
+			free(device->hidden);
+		}
+		if ( device->gl_data ) {
+			free(device->gl_data);
+		}
+		free(device);
+	}
+}
+
+static SDL_VideoDevice *DIB_CreateDevice(int devindex)
+{
+	SDL_VideoDevice *device;
+
+	/* Initialize all variables that we clean on shutdown */
+	device = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice));
+	if ( device ) {
+		memset(device, 0, (sizeof *device));
+		device->hidden = (struct SDL_PrivateVideoData *)
+				malloc((sizeof *device->hidden));
+		device->gl_data = (struct SDL_PrivateGLData *)
+				malloc((sizeof *device->gl_data));
+	}
+	if ( (device == NULL) || (device->hidden == NULL) ||
+		                 (device->gl_data == NULL) ) {
+		SDL_OutOfMemory();
+		DIB_DeleteDevice(device);
+		return(NULL);
+	}
+	memset(device->hidden, 0, (sizeof *device->hidden));
+	memset(device->gl_data, 0, (sizeof *device->gl_data));
+
+	/* Set the function pointers */
+	device->VideoInit = DIB_VideoInit;
+	device->ListModes = DIB_ListModes;
+	device->SetVideoMode = DIB_SetVideoMode;
+	device->UpdateMouse = WIN_UpdateMouse;
+	device->SetColors = DIB_SetColors;
+	device->UpdateRects = NULL;
+	device->VideoQuit = DIB_VideoQuit;
+	device->AllocHWSurface = DIB_AllocHWSurface;
+	device->CheckHWBlit = NULL;
+	device->FillHWRect = NULL;
+	device->SetHWColorKey = NULL;
+	device->SetHWAlpha = NULL;
+	device->LockHWSurface = DIB_LockHWSurface;
+	device->UnlockHWSurface = DIB_UnlockHWSurface;
+	device->FlipHWSurface = NULL;
+	device->FreeHWSurface = DIB_FreeHWSurface;
+#ifndef NO_GAMMA_SUPPORT
+	device->SetGammaRamp = DIB_SetGammaRamp;
+	device->GetGammaRamp = DIB_GetGammaRamp;
+#endif
+#ifdef HAVE_OPENGL
+        device->GL_LoadLibrary = WIN_GL_LoadLibrary;
+        device->GL_GetProcAddress = WIN_GL_GetProcAddress;
+        device->GL_GetAttribute = WIN_GL_GetAttribute;
+        device->GL_MakeCurrent = WIN_GL_MakeCurrent;
+        device->GL_SwapBuffers = WIN_GL_SwapBuffers;
+#endif
+	device->SetCaption = WIN_SetWMCaption;
+	device->SetIcon = WIN_SetWMIcon;
+	device->IconifyWindow = WIN_IconifyWindow;
+	device->GrabInput = WIN_GrabInput;
+	device->GetWMInfo = WIN_GetWMInfo;
+	device->FreeWMCursor = WIN_FreeWMCursor;
+	device->CreateWMCursor = WIN_CreateWMCursor;
+	device->ShowWMCursor = WIN_ShowWMCursor;
+	device->WarpWMCursor = WIN_WarpWMCursor;
+	device->CheckMouseMode = WIN_CheckMouseMode;
+	device->InitOSKeymap = DIB_InitOSKeymap;
+	device->PumpEvents = DIB_PumpEvents;
+
+	/* Set up the windows message handling functions */
+	WIN_RealizePalette = DIB_RealizePalette;
+	WIN_PaletteChanged = DIB_PaletteChanged;
+	WIN_SwapGamma = DIB_SwapGamma;
+	WIN_WinPAINT = DIB_WinPAINT;
+	HandleMessage = DIB_HandleMessage;
+
+	device->free = DIB_DeleteDevice;
+
+	/* We're finally ready */
+	return device;
+}
+
+VideoBootStrap WINDIB_bootstrap = {
+	"windib", "Win95/98/NT/2000 GDI",
+	DIB_Available, DIB_CreateDevice
+};
+
+#ifndef NO_CHANGEDISPLAYSETTINGS
+
+static int cmpmodes(const void *va, const void *vb)
+{
+    SDL_Rect *a = *(SDL_Rect **)va;
+    SDL_Rect *b = *(SDL_Rect **)vb;
+    if(a->w > b->w)
+        return -1;
+    return b->h - a->h;
+}
+
+static int DIB_AddMode(_THIS, int bpp, int w, int h)
+{
+	SDL_Rect *mode;
+	int i, index;
+	int next_mode;
+
+	/* Check to see if we already have this mode */
+	if ( bpp < 8 ) {  /* Not supported */
+		return(0);
+	}
+	index = ((bpp+7)/8)-1;
+	for ( i=0; i<SDL_nummodes[index]; ++i ) {
+		mode = SDL_modelist[index][i];
+		if ( (mode->w == w) && (mode->h == h) ) {
+			return(0);
+		}
+	}
+
+	/* Set up the new video mode rectangle */
+	mode = (SDL_Rect *)malloc(sizeof *mode);
+	if ( mode == NULL ) {
+		SDL_OutOfMemory();
+		return(-1);
+	}
+	mode->x = 0;
+	mode->y = 0;
+	mode->w = w;
+	mode->h = h;
+
+	/* Allocate the new list of modes, and fill in the new mode */
+	next_mode = SDL_nummodes[index];
+	SDL_modelist[index] = (SDL_Rect **)
+	       realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *));
+	if ( SDL_modelist[index] == NULL ) {
+		SDL_OutOfMemory();
+		SDL_nummodes[index] = 0;
+		free(mode);
+		return(-1);
+	}
+	SDL_modelist[index][next_mode] = mode;
+	SDL_modelist[index][next_mode+1] = NULL;
+	SDL_nummodes[index]++;
+
+	return(0);
+}
+
+#endif /* !NO_CHANGEDISPLAYSETTINGS */
+
+static HPALETTE DIB_CreatePalette(int bpp)
+{
+/*	RJR: March 28, 2000
+	moved palette creation here from "DIB_VideoInit" */
+
+	HPALETTE handle = NULL;
+	
+	if ( bpp <= 8 )
+	{
+		LOGPALETTE *palette;
+		HDC hdc;
+		int ncolors;
+		int i;
+
+		ncolors = 1;
+		for ( i=0; i<bpp; ++i ) {
+			ncolors *= 2;
+		}
+		palette = (LOGPALETTE *)malloc(sizeof(*palette)+
+					ncolors*sizeof(PALETTEENTRY));
+		palette->palVersion = 0x300;
+		palette->palNumEntries = ncolors;
+		hdc = GetDC(SDL_Window);
+		GetSystemPaletteEntries(hdc, 0, ncolors, palette->palPalEntry);
+		ReleaseDC(SDL_Window, hdc);
+		handle = CreatePalette(palette);
+		free(palette);
+	}
+	
+	return handle;
+}
+
+int DIB_VideoInit(_THIS, SDL_PixelFormat *vformat)
+{
+#ifndef NO_CHANGEDISPLAYSETTINGS
+	int i;
+	DEVMODE settings;
+#endif
+
+	/* Create the window */
+	if ( DIB_CreateWindow(this) < 0 ) {
+		return(-1);
+	}
+	DX5_SoundFocus(SDL_Window);
+
+	/* Determine the screen depth */
+	vformat->BitsPerPixel = DIB_SussScreenDepth();
+	switch (vformat->BitsPerPixel) {
+		case 15:
+			vformat->Rmask = 0x00007c00;
+			vformat->Gmask = 0x000003e0;
+			vformat->Bmask = 0x0000001f;
+			vformat->BitsPerPixel = 16;
+			break;
+		case 16:
+			vformat->Rmask = 0x0000f800;
+			vformat->Gmask = 0x000007e0;
+			vformat->Bmask = 0x0000001f;
+			break;
+		case 24:
+		case 32:
+			/* GDI defined as 8-8-8 */
+			vformat->Rmask = 0x00ff0000;
+			vformat->Gmask = 0x0000ff00;
+			vformat->Bmask = 0x000000ff;
+			break;
+		default:
+			break;
+	}
+
+	/* See if gamma is supported on this screen */
+	DIB_CheckGamma(this);
+
+#ifndef NO_CHANGEDISPLAYSETTINGS
+	/* Query for the list of available video modes */
+	for ( i=0; EnumDisplaySettings(NULL, i, &settings); ++i ) {
+		DIB_AddMode(this, settings.dmBitsPerPel,
+			settings.dmPelsWidth, settings.dmPelsHeight);
+	}
+	/* Sort the mode lists */
+	for ( i=0; i<NUM_MODELISTS; ++i ) {
+		if ( SDL_nummodes[i] > 0 ) {
+			qsort(SDL_modelist[i], SDL_nummodes[i], sizeof *SDL_modelist[i], cmpmodes);
+		}
+	}
+#endif /* !NO_CHANGEDISPLAYSETTINGS */
+
+	/* Grab an identity palette if we are in a palettized mode */
+	if ( vformat->BitsPerPixel <= 8 ) {
+	/*	RJR: March 28, 2000
+		moved palette creation to "DIB_CreatePalette" */
+		screen_pal = DIB_CreatePalette(vformat->BitsPerPixel);
+	}
+
+	/* Fill in some window manager capabilities */
+	this->info.wm_available = 1;
+
+	/* We're done! */
+	return(0);
+}
+
+/* We support any format at any dimension */
+SDL_Rect **DIB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
+{
+#ifdef NO_CHANGEDISPLAYSETTINGS
+	return((SDL_Rect **)-1);
+#else
+	if ( (flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) {
+		return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]);
+	} else {
+		return((SDL_Rect **)-1);
+	}
+#endif
+}
+
+
+/*
+  Helper fn to work out which screen depth windows is currently using.
+  15 bit mode is considered 555 format, 16 bit is 565.
+  returns 0 for unknown mode.
+  (Derived from code in sept 1999 Windows Developer Journal
+  http://www.wdj.com/code/archive.html)
+*/
+static int DIB_SussScreenDepth()
+{
+#ifdef NO_GETDIBITS
+	int depth;
+	HDC hdc;
+
+	hdc = GetDC(SDL_Window);
+	depth = GetDeviceCaps(hdc, PLANES) * GetDeviceCaps(hdc, BITSPIXEL);
+	ReleaseDC(SDL_Window, hdc);
+	if ( depth == 16 ) {
+		depth = 15;	/* GDI defined as RGB 555 */
+	}
+	return(depth);
+#else
+    int dib_size;
+    LPBITMAPINFOHEADER dib_hdr;
+    HDC hdc;
+    HBITMAP hbm;
+
+    /* Allocate enough space for a DIB header plus palette (for
+     * 8-bit modes) or bitfields (for 16- and 32-bit modes)
+     */
+    dib_size = sizeof(BITMAPINFOHEADER) + 256 * sizeof (RGBQUAD);
+    dib_hdr = (LPBITMAPINFOHEADER) malloc(dib_size);
+    memset(dib_hdr, 0, dib_size);
+    dib_hdr->biSize = sizeof(BITMAPINFOHEADER);
+    
+    /* Get a device-dependent bitmap that's compatible with the
+       screen.
+     */
+    hdc = GetDC(NULL);
+    hbm = CreateCompatibleBitmap( hdc, 1, 1 );
+
+    /* Convert the DDB to a DIB.  We need to call GetDIBits twice:
+     * the first call just fills in the BITMAPINFOHEADER; the 
+     * second fills in the bitfields or palette.
+     */
+    GetDIBits(hdc, hbm, 0, 1, NULL, (LPBITMAPINFO) dib_hdr, DIB_RGB_COLORS);
+    GetDIBits(hdc, hbm, 0, 1, NULL, (LPBITMAPINFO) dib_hdr, DIB_RGB_COLORS);
+    DeleteObject(hbm);
+    ReleaseDC(NULL, hdc);
+
+    switch( dib_hdr->biBitCount )
+    {
+    case 8:     return 8;
+    case 24:    return 24;
+    case 32:    return 32;
+    case 16:
+        if( dib_hdr->biCompression == BI_BITFIELDS ) {
+            /* check the red mask */
+            switch( ((DWORD*)((char*)dib_hdr + dib_hdr->biSize))[0] ) {
+                case 0xf800: return 16;    /* 565 */
+                case 0x7c00: return 15;    /* 555 */
+            }
+        }
+    }
+    return 0;    /* poo. */
+#endif /* NO_GETDIBITS */
+}
+
+
+/* Various screen update functions available */
+static void DIB_NormalUpdate(_THIS, int numrects, SDL_Rect *rects);
+
+SDL_Surface *DIB_SetVideoMode(_THIS, SDL_Surface *current,
+				int width, int height, int bpp, Uint32 flags)
+{
+	SDL_Surface *video;
+	Uint32 prev_flags;
+	DWORD style;
+	const DWORD directstyle =
+			(WS_POPUP);
+	const DWORD windowstyle = 
+			(WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX);
+	const DWORD resizestyle =
+			(WS_THICKFRAME|WS_MAXIMIZEBOX);
+	int binfo_size;
+	BITMAPINFO *binfo;
+	HDC hdc;
+	RECT bounds;
+	int x, y;
+	BOOL was_visible;
+	Uint32 Rmask, Gmask, Bmask;
+
+	/* See whether or not we should center the window */
+	was_visible = IsWindowVisible(SDL_Window);
+
+	/* Clean up any GL context that may be hanging around */
+	if ( current->flags & SDL_OPENGL ) {
+		WIN_GL_ShutDown(this);
+	}
+
+	/* Recalculate the bitmasks if necessary */
+	if ( bpp == current->format->BitsPerPixel ) {
+		video = current;
+	} else {
+		switch (bpp) {
+			case 15:
+			case 16:
+				if ( DIB_SussScreenDepth() == 15 ) {
+					/* 5-5-5 */
+					Rmask = 0x00007c00;
+					Gmask = 0x000003e0;
+					Bmask = 0x0000001f;
+				} else {
+					/* 5-6-5 */
+					Rmask = 0x0000f800;
+					Gmask = 0x000007e0;
+					Bmask = 0x0000001f;
+				}
+				break;
+			case 24:
+			case 32:
+				/* GDI defined as 8-8-8 */
+				Rmask = 0x00ff0000;
+				Gmask = 0x0000ff00;
+				Bmask = 0x000000ff;
+				break;
+			default:
+				Rmask = 0x00000000;
+				Gmask = 0x00000000;
+				Bmask = 0x00000000;
+				break;
+		}
+		video = SDL_CreateRGBSurface(SDL_SWSURFACE,
+					0, 0, bpp, Rmask, Gmask, Bmask, 0);
+		if ( video == NULL ) {
+			SDL_OutOfMemory();
+			return(NULL);
+		}
+	}
+
+	/* Fill in part of the video surface */
+	prev_flags = video->flags;
+	video->flags = 0;	/* Clear flags */
+	video->w = width;
+	video->h = height;
+	video->pitch = SDL_CalculatePitch(video);
+
+#ifndef NO_CHANGEDISPLAYSETTINGS
+	/* Set fullscreen mode if appropriate */
+	if ( (flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) {
+		DEVMODE settings;
+
+		memset(&settings, 0, sizeof(DEVMODE));
+		settings.dmSize = sizeof(DEVMODE);
+		settings.dmBitsPerPel = video->format->BitsPerPixel;
+		settings.dmPelsWidth = width;
+		settings.dmPelsHeight = height;
+		settings.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL;
+		if ( ChangeDisplaySettings(&settings, CDS_FULLSCREEN) == DISP_CHANGE_SUCCESSFUL ) {
+			video->flags |= SDL_FULLSCREEN;
+			if ( screen_pal != NULL ) {
+			/*	RJR: March 28, 2000
+				delete identity palette if switching from a palettized mode */
+				DeleteObject(screen_pal);
+				screen_pal = NULL;
+			}
+			if ( bpp <= 8 )
+			{
+			/*	RJR: March 28, 2000
+				create identity palette switching to a palettized mode */
+				screen_pal = DIB_CreatePalette(bpp);
+			}
+		}
+	}
+#endif /* !NO_CHANGEDISPLAYSETTINGS */
+
+	style = GetWindowLong(SDL_Window, GWL_STYLE);
+	style &= ~(resizestyle|WS_MAXIMIZE);
+	if ( (video->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) {
+		style &= ~windowstyle;
+		style |= directstyle;
+	} else {
+#ifndef NO_CHANGEDISPLAYSETTINGS
+		if ( (prev_flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) {
+			ChangeDisplaySettings(NULL, 0);
+		}
+#endif
+		if ( flags & SDL_NOFRAME ) {
+			style &= ~windowstyle;
+			style |= directstyle;
+			video->flags |= SDL_NOFRAME;
+		} else {
+			style &= ~directstyle;
+			style |= windowstyle;
+			if ( flags & SDL_RESIZABLE ) {
+				style |= resizestyle;
+				video->flags |= SDL_RESIZABLE;
+			}
+		}
+		if (IsZoomed(SDL_Window)) style |= WS_MAXIMIZE;
+	}
+	SetWindowLong(SDL_Window, GWL_STYLE, style);
+
+	/* Delete the old bitmap if necessary */
+	if ( screen_bmp != NULL ) {
+		DeleteObject(screen_bmp);
+	}
+	if ( ! (flags & SDL_OPENGL) ) {
+		BOOL is16bitmode = (video->format->BytesPerPixel == 2);
+
+		/* Suss out the bitmap info header */
+		binfo_size = sizeof(*binfo);
+		if( is16bitmode ) {
+			/* 16bit modes, palette area used for rgb bitmasks */
+			binfo_size += 3*sizeof(DWORD);
+		} else if ( video->format->palette ) {
+			binfo_size += video->format->palette->ncolors *
+							sizeof(RGBQUAD);
+		}
+		binfo = (BITMAPINFO *)malloc(binfo_size);
+		if ( ! binfo ) {
+			if ( video != current ) {
+				SDL_FreeSurface(video);
+			}
+			SDL_OutOfMemory();
+			return(NULL);
+		}
+
+		binfo->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+		binfo->bmiHeader.biWidth = video->w;
+		binfo->bmiHeader.biHeight = -video->h;	/* -ve for topdown bitmap */
+		binfo->bmiHeader.biPlanes = 1;
+		binfo->bmiHeader.biSizeImage = video->h * video->pitch;
+		binfo->bmiHeader.biXPelsPerMeter = 0;
+		binfo->bmiHeader.biYPelsPerMeter = 0;
+		binfo->bmiHeader.biClrUsed = 0;
+		binfo->bmiHeader.biClrImportant = 0;
+		binfo->bmiHeader.biBitCount = video->format->BitsPerPixel;
+
+		if ( is16bitmode ) {
+			/* BI_BITFIELDS tells CreateDIBSection about the rgb masks in the palette */
+			binfo->bmiHeader.biCompression = BI_BITFIELDS;
+			((Uint32*)binfo->bmiColors)[0] = video->format->Rmask;
+			((Uint32*)binfo->bmiColors)[1] = video->format->Gmask;
+			((Uint32*)binfo->bmiColors)[2] = video->format->Bmask;
+		} else {
+			binfo->bmiHeader.biCompression = BI_RGB;	/* BI_BITFIELDS for 565 vs 555 */
+			if ( video->format->palette ) {
+				memset(binfo->bmiColors, 0,
+					video->format->palette->ncolors*sizeof(RGBQUAD));
+			}
+		}
+
+		/* Create the offscreen bitmap buffer */
+		hdc = GetDC(SDL_Window);
+		screen_bmp = CreateDIBSection(hdc, binfo, DIB_RGB_COLORS,
+					(void **)(&video->pixels), NULL, 0);
+		ReleaseDC(SDL_Window, hdc);
+		free(binfo);
+		if ( screen_bmp == NULL ) {
+			if ( video != current ) {
+				SDL_FreeSurface(video);
+			}
+			SDL_SetError("Couldn't create DIB section");
+			return(NULL);
+		}
+		this->UpdateRects = DIB_NormalUpdate;
+
+		/* Set video surface flags */
+		if ( bpp <= 8 ) {
+			/* BitBlt() maps colors for us */
+			video->flags |= SDL_HWPALETTE;
+		}
+	}
+
+	/* Resize the window */
+	if ( SDL_windowid == NULL ) {
+		UINT swp_flags;
+
+		SDL_resizing = 1;
+		bounds.left = 0;
+		bounds.top = 0;
+		bounds.right = video->w;
+		bounds.bottom = video->h;
+		AdjustWindowRect(&bounds, GetWindowLong(SDL_Window, GWL_STYLE), FALSE);
+		width = bounds.right-bounds.left;
+		height = bounds.bottom-bounds.top;
+		x = (GetSystemMetrics(SM_CXSCREEN)-width)/2;
+		y = (GetSystemMetrics(SM_CYSCREEN)-height)/2;
+		if ( y < 0 ) { /* Cover up title bar for more client area */
+			y -= GetSystemMetrics(SM_CYCAPTION)/2;
+		}
+		swp_flags = (SWP_NOCOPYBITS | SWP_NOZORDER | SWP_SHOWWINDOW);
+		if ( was_visible && !(flags & SDL_FULLSCREEN) ) {
+			swp_flags |= SWP_NOMOVE;
+		}
+		SetWindowPos(SDL_Window, NULL, x, y, width, height, swp_flags);
+		SDL_resizing = 0;
+		SetForegroundWindow(SDL_Window);
+	}
+
+	/* Set up for OpenGL */
+	if ( flags & SDL_OPENGL ) {
+		if ( WIN_GL_SetupWindow(this) < 0 ) {
+			return(NULL);
+		}
+		video->flags |= SDL_OPENGL;
+	}
+	/* We're live! */
+	return(video);
+}
+
+/* We don't actually allow hardware surfaces in the DIB driver */
+static int DIB_AllocHWSurface(_THIS, SDL_Surface *surface)
+{
+	return(-1);
+}
+static void DIB_FreeHWSurface(_THIS, SDL_Surface *surface)
+{
+	return;
+}
+static int DIB_LockHWSurface(_THIS, SDL_Surface *surface)
+{
+	return(0);
+}
+static void DIB_UnlockHWSurface(_THIS, SDL_Surface *surface)
+{
+	return;
+}
+
+static void DIB_NormalUpdate(_THIS, int numrects, SDL_Rect *rects)
+{
+	HDC hdc, mdc;
+	int i;
+
+	hdc = GetDC(SDL_Window);
+	if ( screen_pal ) {
+		SelectPalette(hdc, screen_pal, FALSE);
+	}
+	mdc = CreateCompatibleDC(hdc);
+	SelectObject(mdc, screen_bmp);
+	for ( i=0; i<numrects; ++i ) {
+		BitBlt(hdc, rects[i].x, rects[i].y, rects[i].w, rects[i].h,
+					mdc, rects[i].x, rects[i].y, SRCCOPY);
+	}
+	DeleteDC(mdc);
+	ReleaseDC(SDL_Window, hdc);
+}
+
+int DIB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
+{
+	RGBQUAD *pal;
+	int i;
+	HDC hdc, mdc;
+
+	/* Update the display palette */
+	hdc = GetDC(SDL_Window);
+	if ( screen_pal ) {
+		PALETTEENTRY *entries;
+
+		entries = (PALETTEENTRY *)alloca(ncolors*sizeof(PALETTEENTRY));
+		for ( i=0; i<ncolors; ++i ) {
+			entries[i].peRed   = colors[i].r;
+			entries[i].peGreen = colors[i].g;
+			entries[i].peBlue  = colors[i].b;
+			entries[i].peFlags = PC_NOCOLLAPSE;
+		}
+		SetPaletteEntries(screen_pal, firstcolor, ncolors, entries);
+		SelectPalette(hdc, screen_pal, FALSE);
+		RealizePalette(hdc);
+	}
+
+	/* Copy palette colors into DIB palette */
+	pal = (RGBQUAD *)alloca(ncolors*sizeof(RGBQUAD));
+	for ( i=0; i<ncolors; ++i ) {
+		pal[i].rgbRed = colors[i].r;
+		pal[i].rgbGreen = colors[i].g;
+		pal[i].rgbBlue = colors[i].b;
+		pal[i].rgbReserved = 0;
+	}
+
+	/* Set the DIB palette and update the display */
+	mdc = CreateCompatibleDC(hdc);
+	SelectObject(mdc, screen_bmp);
+	SetDIBColorTable(mdc, firstcolor, ncolors, pal);
+	BitBlt(hdc, 0, 0, this->screen->w, this->screen->h,
+	       mdc, 0, 0, SRCCOPY);
+	DeleteDC(mdc);
+	ReleaseDC(SDL_Window, hdc);
+	return(1);
+}
+
+static void DIB_CheckGamma(_THIS)
+{
+#ifndef NO_GAMMA_SUPPORT
+	HDC hdc;
+	WORD ramp[3*256];
+
+	/* If we fail to get gamma, disable gamma control */
+	hdc = GetDC(SDL_Window);
+	if ( ! GetDeviceGammaRamp(hdc, ramp) ) {
+		this->GetGammaRamp = NULL;
+		this->SetGammaRamp = NULL;
+	}
+	ReleaseDC(SDL_Window, hdc);
+#endif /* !NO_GAMMA_SUPPORT */
+}
+static void DIB_SwapGamma(_THIS)
+{
+#ifndef NO_GAMMA_SUPPORT
+	HDC hdc;
+
+	if ( gamma_saved ) {
+		hdc = GetDC(SDL_Window);
+		if ( SDL_GetAppState() & SDL_APPINPUTFOCUS ) {
+			/* About to leave active state, restore gamma */
+			SetDeviceGammaRamp(hdc, gamma_saved);
+		} else {
+			/* About to enter active state, set game gamma */
+			GetDeviceGammaRamp(hdc, gamma_saved);
+			SetDeviceGammaRamp(hdc, this->gamma);
+		}
+		ReleaseDC(SDL_Window, hdc);
+	}
+#endif /* !NO_GAMMA_SUPPORT */
+}
+static void DIB_QuitGamma(_THIS)
+{
+#ifndef NO_GAMMA_SUPPORT
+	if ( gamma_saved ) {
+		/* Restore the original gamma if necessary */
+		if ( SDL_GetAppState() & SDL_APPINPUTFOCUS ) {
+			HDC hdc;
+
+			hdc = GetDC(SDL_Window);
+			SetDeviceGammaRamp(hdc, gamma_saved);
+			ReleaseDC(SDL_Window, hdc);
+		}
+
+		/* Free the saved gamma memory */
+		free(gamma_saved);
+		gamma_saved = 0;
+	}
+#endif /* !NO_GAMMA_SUPPORT */
+}
+
+#ifndef NO_GAMMA_SUPPORT
+
+static int DIB_SetGammaRamp(_THIS, Uint16 *ramp)
+{
+	HDC hdc;
+	BOOL succeeded;
+
+	/* Set the ramp for the display */
+	if ( ! gamma_saved ) {
+		gamma_saved = (WORD *)malloc(3*256*sizeof(*gamma_saved));
+		if ( ! gamma_saved ) {
+			SDL_OutOfMemory();
+			return -1;
+		}
+		hdc = GetDC(SDL_Window);
+		GetDeviceGammaRamp(hdc, gamma_saved);
+		ReleaseDC(SDL_Window, hdc);
+	}
+	if ( SDL_GetAppState() & SDL_APPINPUTFOCUS ) {
+		hdc = GetDC(SDL_Window);
+		succeeded = SetDeviceGammaRamp(hdc, ramp);
+		ReleaseDC(SDL_Window, hdc);
+	} else {
+		succeeded = TRUE;
+	}
+	return succeeded ? 0 : -1;
+}
+
+static int DIB_GetGammaRamp(_THIS, Uint16 *ramp)
+{
+	HDC hdc;
+	BOOL succeeded;
+
+	/* Get the ramp from the display */
+	hdc = GetDC(SDL_Window);
+	succeeded = GetDeviceGammaRamp(hdc, ramp);
+	ReleaseDC(SDL_Window, hdc);
+	return succeeded ? 0 : -1;
+}
+
+#endif /* !NO_GAMMA_SUPPORT */
+
+void DIB_VideoQuit(_THIS)
+{
+	/* Destroy the window and everything associated with it */
+	if ( SDL_Window ) {
+		/* Delete the screen bitmap (also frees screen->pixels) */
+		if ( this->screen ) {
+#ifndef NO_CHANGEDISPLAYSETTINGS
+			if ( this->screen->flags & SDL_FULLSCREEN ) {
+				ChangeDisplaySettings(NULL, 0);
+			}
+#endif
+			if ( this->screen->flags & SDL_OPENGL ) {
+				WIN_GL_ShutDown(this);
+			}
+			this->screen->pixels = NULL;
+		}
+		if ( screen_bmp ) {
+			DeleteObject(screen_bmp);
+			screen_bmp = NULL;
+		}
+		if ( screen_icn ) {
+			DestroyIcon(screen_icn);
+			screen_icn = NULL;
+		}
+		DIB_QuitGamma(this);
+		DIB_DestroyWindow(this);
+
+		SDL_Window = NULL;
+	}
+}
+
+/* Exported for the windows message loop only */
+static void DIB_FocusPalette(_THIS, int foreground)
+{
+	if ( screen_pal != NULL ) {
+		HDC hdc;
+
+		hdc = GetDC(SDL_Window);
+		SelectPalette(hdc, screen_pal, FALSE);
+		if ( RealizePalette(hdc) )
+			InvalidateRect(SDL_Window, NULL, FALSE);
+		ReleaseDC(SDL_Window, hdc);
+	}
+}
+static void DIB_RealizePalette(_THIS)
+{
+	DIB_FocusPalette(this, 1);
+}
+static void DIB_PaletteChanged(_THIS, HWND window)
+{
+	if ( window != SDL_Window ) {
+		DIB_FocusPalette(this, 0);
+	}
+}
+
+/* Exported for the windows message loop only */
+static void DIB_WinPAINT(_THIS, HDC hdc)
+{
+	HDC mdc;
+
+	if ( screen_pal ) {
+		SelectPalette(hdc, screen_pal, FALSE);
+	}
+	mdc = CreateCompatibleDC(hdc);
+	SelectObject(mdc, screen_bmp);
+	BitBlt(hdc, 0, 0, SDL_VideoSurface->w, SDL_VideoSurface->h,
+							mdc, 0, 0, SRCCOPY);
+	DeleteDC(mdc);
+}
+
+/* Stub in case DirectX isn't available */
+#ifndef ENABLE_DIRECTX
+void DX5_SoundFocus(HWND hwnd)
+{
+	return;
+}
+#endif