/*

SDL - Simple DirectMedia Layer

Copyright (C) 1997-2006 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"

#define WIN32_LEAN_AND_MEAN

#include <windows.h>

/* Not yet in the mingw32 cross-compile headers */

#ifndef CDS_FULLSCREEN

#define CDS_FULLSCREEN 4

#endif

#include "SDL_syswm.h"

#include "../SDL_sysvideo.h"

#include "../SDL_pixels_c.h"

#include "../../events/SDL_sysevents.h"

#include "../../events/SDL_events_c.h"

#include "SDL_dibvideo.h"

#include "../wincommon/SDL_syswm_c.h"

#include "../wincommon/SDL_sysmouse_c.h"

#include "SDL_dibevents_c.h"

#include "../wincommon/SDL_wingl_c.h"

#ifdef _WIN32_WCE

#define NO_GETDIBITS

#define NO_GAMMA_SUPPORT

#if _WIN32_WCE < 420

#define NO_CHANGEDISPLAYSETTINGS

#else

#define ChangeDisplaySettings(lpDevMode, dwFlags) ChangeDisplaySettingsEx(NULL, (lpDevMode), 0, (dwFlags), 0)

#endif

#endif

#ifndef WS_MAXIMIZE

#define WS_MAXIMIZE 0

#endif

#ifndef WS_THICKFRAME

#define WS_THICKFRAME 0

#endif

#ifndef SWP_NOCOPYBITS

#define SWP_NOCOPYBITS 0

#endif

#ifndef PC_NOCOLLAPSE

#define PC_NOCOLLAPSE 0

#endif

#ifdef _WIN32_WCE

// defined and used in SDL_sysevents.c

extern HINSTANCE aygshell;

#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);

void DIB_SwapGamma(_THIS);

void DIB_QuitGamma(_THIS);

int DIB_SetGammaRamp(_THIS, Uint16 * ramp);

int DIB_GetGammaRamp(_THIS, Uint16 * ramp);

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) {

SDL_free(device->hidden);

}

if (device->gl_data) {

SDL_free(device->gl_data);

}

SDL_free(device);

}

}

static SDL_VideoDevice *

DIB_CreateDevice(int devindex)

{

SDL_VideoDevice *device;

/* Initialize all variables that we clean on shutdown */

device = (SDL_VideoDevice *) SDL_malloc(sizeof(SDL_VideoDevice));

if (device) {

SDL_memset(device, 0, (sizeof *device));

device->hidden = (struct SDL_PrivateVideoData *)

SDL_malloc((sizeof *device->hidden));

device->gl_data = (struct SDL_PrivateGLData *)

SDL_malloc((sizeof *device->gl_data));

}

if ((device == NULL) || (device->hidden == NULL) ||

(device->gl_data == NULL)) {

SDL_OutOfMemory();

DIB_DeleteDevice(device);

return (NULL);

}

SDL_memset(device->hidden, 0, (sizeof *device->hidden));

SDL_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;

device->SetGammaRamp = DIB_SetGammaRamp;

device->GetGammaRamp = DIB_GetGammaRamp;

#if SDL_VIDEO_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_WinPAINT = DIB_WinPAINT;

HandleMessage = DIB_HandleMessage;

device->free = DIB_DeleteDevice;

/* We're finally ready */

return device;

}

VideoBootStrap WINDIB_bootstrap = {

"windib", "Win95/98/NT/2000/CE GDI",

DIB_Available, DIB_CreateDevice

};

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 b->h - a->h;

else

return b->w - a->w;

}

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 *) SDL_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 **)

SDL_realloc(SDL_modelist[index],

(1 + next_mode + 1) * sizeof(SDL_Rect *));

if (SDL_modelist[index] == NULL) {

SDL_OutOfMemory();

SDL_nummodes[index] = 0;

SDL_free(mode);

return (-1);

}

SDL_modelist[index][next_mode] = mode;

SDL_modelist[index][next_mode + 1] = NULL;

SDL_nummodes[index]++;

return (0);

}

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 *) SDL_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);

SDL_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);

}

#if !SDL_AUDIO_DISABLED

DX5_SoundFocus(SDL_Window);

#endif

/* 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

settings.dmSize = sizeof(DEVMODE);

settings.dmDriverExtra = 0;

#ifdef _WIN32_WCE

settings.dmFields = DM_DISPLAYQUERYORIENTATION;

this->hidden->supportRotation =

ChangeDisplaySettingsEx(NULL, &settings, NULL, CDS_TEST,

NULL) == DISP_CHANGE_SUCCESSFUL;

#endif

/* Query for the desktop resolution */

EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &SDL_desktop_mode);

this->info.current_w = SDL_desktop_mode.dmPelsWidth;

this->info.current_h = SDL_desktop_mode.dmPelsHeight;

/* 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);

#ifdef _WIN32_WCE

if (this->hidden->supportRotation)

DIB_AddMode(this, settings.dmBitsPerPel,

settings.dmPelsHeight, settings.dmPelsWidth);

#endif

}

/* Sort the mode lists */

for (i = 0; i < NUM_MODELISTS; ++i) {

if (SDL_nummodes[i] > 0) {

SDL_qsort(SDL_modelist[i], SDL_nummodes[i],

sizeof *SDL_modelist[i], cmpmodes);

}

}

#else

// WinCE and fullscreen mode:

// We use only vformat->BitsPerPixel that allow SDL to

// emulate other bpp (8, 32) and use triple buffer,

// because SDL surface conversion is much faster than the WinCE one.

// Although it should be tested on devices with graphics accelerator.

DIB_AddMode(this, vformat->BitsPerPixel,

GetDeviceCaps(GetDC(NULL), HORZRES),

GetDeviceCaps(GetDC(NULL), VERTRES));

#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;

#ifdef _WIN32_WCE

this->hidden->origRotation = -1;

#endif

/* We're done! */

return (0);

}

/* We support any format at any dimension */

SDL_Rect **

DIB_ListModes(_THIS, SDL_PixelFormat * format, Uint32 flags)

{

if ((flags & SDL_FULLSCREEN) == SDL_FULLSCREEN) {

return (SDL_modelist[((format->BitsPerPixel + 7) / 8) - 1]);

} else {

return ((SDL_Rect **) - 1);

}

}

/*

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);

return (depth);

#else

int depth;

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) SDL_malloc(dib_size);

SDL_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);

depth = 0;

switch (dib_hdr->biBitCount) {

case 8:

depth = 8;

break;

case 24:

depth = 24;

break;

case 32:

depth = 32;

break;

case 16:

if (dib_hdr->biCompression == BI_BITFIELDS) {

/* check the red mask */

switch (((DWORD *) ((char *) dib_hdr + dib_hdr->biSize))[0]) {

case 0xf800:

depth = 16;

break; /* 565 */

case 0x7c00:

depth = 15;

break; /* 555 */

}

}

}

SDL_free(dib_hdr);

return depth;

#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;

Uint32 Rmask, Gmask, Bmask;

/* Clean up any GL context that may be hanging around */

if (current->flags & SDL_INTERNALOPENGL) {

WIN_GL_ShutDown(this);

}

SDL_resizing = 1;

/* 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);

/* Small fix for WinCE/Win32 - when activating window

SDL_VideoSurface is equal to zero, so activating code

is not called properly for fullscreen windows because

macros WINDIB_FULLSCREEN uses SDL_VideoSurface

*/

SDL_VideoSurface = video;

#if defined(_WIN32_WCE)

if (flags & SDL_FULLSCREEN)

video->flags |= SDL_FULLSCREEN;

#endif

#ifndef NO_CHANGEDISPLAYSETTINGS

/* Set fullscreen mode if appropriate */

if ((flags & SDL_FULLSCREEN) == SDL_FULLSCREEN) {

DEVMODE settings;

BOOL changed;

SDL_memset(&settings, 0, sizeof(DEVMODE));

settings.dmSize = sizeof(DEVMODE);

#ifdef _WIN32_WCE

// try to rotate screen to fit requested resolution

if (this->hidden->supportRotation) {

DWORD rotation;

// ask current mode

settings.dmFields = DM_DISPLAYORIENTATION;

ChangeDisplaySettingsEx(NULL, &settings, NULL, CDS_TEST, NULL);

rotation = settings.dmDisplayOrientation;

if ((width > GetDeviceCaps(GetDC(NULL), HORZRES))

&& (height < GetDeviceCaps(GetDC(NULL), VERTRES))) {

switch (rotation) {

case DMDO_0:

settings.dmDisplayOrientation = DMDO_90;

break;

case DMDO_270:

settings.dmDisplayOrientation = DMDO_180;

break;

}

if (settings.dmDisplayOrientation != rotation) {

// go to landscape

this->hidden->origRotation = rotation;

ChangeDisplaySettingsEx(NULL, &settings, NULL, CDS_RESET,

NULL);

}

}

if ((width < GetDeviceCaps(GetDC(NULL), HORZRES))

&& (height > GetDeviceCaps(GetDC(NULL), VERTRES))) {

switch (rotation) {

case DMDO_90:

settings.dmDisplayOrientation = DMDO_0;

break;

case DMDO_180:

settings.dmDisplayOrientation = DMDO_270;

break;

}

if (settings.dmDisplayOrientation != rotation) {

// go to portrait

this->hidden->origRotation = rotation;

ChangeDisplaySettingsEx(NULL, &settings, NULL, CDS_RESET,

NULL);

}

}

}

#endif

#ifndef _WIN32_WCE

settings.dmBitsPerPel = video->format->BitsPerPixel;

settings.dmPelsWidth = width;

settings.dmPelsHeight = height;

settings.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL;

if (width <= (int) SDL_desktop_mode.dmPelsWidth &&

height <= (int) SDL_desktop_mode.dmPelsHeight) {

settings.dmDisplayFrequency = SDL_desktop_mode.dmDisplayFrequency;

settings.dmFields |= DM_DISPLAYFREQUENCY;

}

changed =

(ChangeDisplaySettings(&settings, CDS_FULLSCREEN) ==

DISP_CHANGE_SUCCESSFUL);

if (!changed && (settings.dmFields & DM_DISPLAYFREQUENCY)) {

settings.dmFields &= ~DM_DISPLAYFREQUENCY;

changed =

(ChangeDisplaySettings(&settings, CDS_FULLSCREEN) ==

DISP_CHANGE_SUCCESSFUL);

}

#else

changed = 1;

#endif

if (changed) {

video->flags |= SDL_FULLSCREEN;

SDL_fullscreen_mode = settings;

}

}

#endif /* !NO_CHANGEDISPLAYSETTINGS */

/* Reset the palette and create a new one if necessary */

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);

}

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 WS_MAXIMIZE

if (IsZoomed(SDL_Window))

style |= WS_MAXIMIZE;

#endif

}

/* DJM: Don't piss of anyone who has setup his own window */

if (!SDL_windowid)

SetWindowLong(SDL_Window, GWL_STYLE, style);

/* Delete the old bitmap if necessary */

if (screen_bmp != NULL) {

DeleteObject(screen_bmp);

}

if (!(flags & SDL_INTERNALOPENGL)) {

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 *) SDL_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) {

SDL_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);

SDL_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;

}

}

#ifndef _WIN32_WCE

/* Resize the window */

if (!SDL_windowid && !IsZoomed(SDL_Window)) {

#else

if (!SDL_windowid) {

#endif

HWND top;

UINT swp_flags;

const char *window = NULL;

const char *center = NULL;

if (!SDL_windowX && !SDL_windowY) {

window = SDL_getenv("SDL_VIDEO_WINDOW_POS");

center = SDL_getenv("SDL_VIDEO_CENTERED");

if (window) {

if (SDL_sscanf(window, "%d,%d", &x, &y) == 2) {

SDL_windowX = x;

SDL_windowY = y;

}

if (SDL_strcmp(window, "center") == 0) {

center = window;

}

}

}

swp_flags = (SWP_NOCOPYBITS | SWP_SHOWWINDOW);

bounds.left = SDL_windowX;

bounds.top = SDL_windowY;

bounds.right = SDL_windowX + video->w;

bounds.bottom = SDL_windowY + video->h;

AdjustWindowRectEx(&bounds, GetWindowLong(SDL_Window, GWL_STYLE),

FALSE, 0);

width = bounds.right - bounds.left;

height = bounds.bottom - bounds.top;

if ((flags & SDL_FULLSCREEN)) {

x = (GetSystemMetrics(SM_CXSCREEN) - width) / 2;

y = (GetSystemMetrics(SM_CYSCREEN) - height) / 2;

} else if (center) {

x = (GetSystemMetrics(SM_CXSCREEN) - width) / 2;

y = (GetSystemMetrics(SM_CYSCREEN) - height) / 2;

} else if (SDL_windowX || SDL_windowY || window) {

x = bounds.left;

y = bounds.top;

} else {

x = y = -1;

swp_flags |= SWP_NOMOVE;

}

if (flags & SDL_FULLSCREEN) {

top = HWND_TOPMOST;

} else {

top = HWND_NOTOPMOST;

}

SetWindowPos(SDL_Window, top, x, y, width, height, swp_flags);

if (!(flags & SDL_FULLSCREEN)) {

SDL_windowX = SDL_bounds.left;

SDL_windowY = SDL_bounds.top;

}

SetForegroundWindow(SDL_Window);

}

SDL_resizing = 0;

/* Set up for OpenGL */

if (flags & SDL_INTERNALOPENGL) {

if (WIN_GL_SetupWindow(this) < 0) {

return (NULL);

}

video->flags |= SDL_INTERNALOPENGL;

}

/* JC 14 Mar 2006

Flush the message loop or this can cause big problems later

Especially if the user decides to use dialog boxes or assert()!

*/

WIN_FlushMessageQueue();

/* 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)

{

#if !defined(_WIN32_WCE) || (_WIN32_WCE >= 400)

HDC hdc, mdc;

RGBQUAD *pal;

#else

HDC hdc;

#endif

int i;

/* Update the display palette */

hdc = GetDC(SDL_Window);

if (screen_pal) {

PALETTEENTRY *entries;

entries = SDL_stack_alloc(PALETTEENTRY, ncolors);

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);

SDL_stack_free(entries);

}

#if !defined(_WIN32_WCE) || (_WIN32_WCE >= 400)

/* Copy palette colors into DIB palette */

pal = SDL_stack_alloc(RGBQUAD, ncolors);

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);

SDL_stack_free(pal);

#endif

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 */

}

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 */

}

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);

}