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SDL_dibvideo.c

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1116 lines (1002 loc) · 28.4 KB
 
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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
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Lesser General Public License for more details.
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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
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Sam Lantinga
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slouken@libsdl.org
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*/
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#include "SDL_config.h"
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#define WIN32_LEAN_AND_MEAN
#include <windows.h>
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/* Not yet in the mingw32 cross-compile headers */
#ifndef CDS_FULLSCREEN
#define CDS_FULLSCREEN 4
#endif
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#include "SDL_syswm.h"
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#include "../SDL_sysvideo.h"
#include "../SDL_pixels_c.h"
#include "../../events/SDL_sysevents.h"
#include "../../events/SDL_events_c.h"
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#include "SDL_dibvideo.h"
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#include "../wincommon/SDL_syswm_c.h"
#include "../wincommon/SDL_sysmouse_c.h"
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#include "SDL_dibevents_c.h"
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#include "../wincommon/SDL_wingl_c.h"
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#ifdef _WIN32_WCE
#define NO_GETDIBITS
#define NO_GAMMA_SUPPORT
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#if _WIN32_WCE < 420
#define NO_CHANGEDISPLAYSETTINGS
#else
#define ChangeDisplaySettings(lpDevMode, dwFlags) ChangeDisplaySettingsEx(NULL, (lpDevMode), 0, (dwFlags), 0)
#endif
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#endif
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#ifndef WS_MAXIMIZE
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#define WS_MAXIMIZE 0
#endif
#ifndef WS_THICKFRAME
#define WS_THICKFRAME 0
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#endif
#ifndef SWP_NOCOPYBITS
#define SWP_NOCOPYBITS 0
#endif
#ifndef PC_NOCOLLAPSE
#define PC_NOCOLLAPSE 0
#endif
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#ifdef _WIN32_WCE
// defined and used in SDL_sysevents.c
extern HINSTANCE aygshell;
#endif
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/* 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);
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void DIB_SwapGamma(_THIS);
void DIB_QuitGamma(_THIS);
int DIB_SetGammaRamp(_THIS, Uint16 *ramp);
int DIB_GetGammaRamp(_THIS, Uint16 *ramp);
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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 ) {
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SDL_free(device->hidden);
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}
if ( device->gl_data ) {
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SDL_free(device->gl_data);
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}
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SDL_free(device);
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}
}
static SDL_VideoDevice *DIB_CreateDevice(int devindex)
{
SDL_VideoDevice *device;
/* Initialize all variables that we clean on shutdown */
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device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice));
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if ( device ) {
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SDL_memset(device, 0, (sizeof *device));
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device->hidden = (struct SDL_PrivateVideoData *)
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SDL_malloc((sizeof *device->hidden));
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device->gl_data = (struct SDL_PrivateGLData *)
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SDL_malloc((sizeof *device->gl_data));
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}
if ( (device == NULL) || (device->hidden == NULL) ||
(device->gl_data == NULL) ) {
SDL_OutOfMemory();
DIB_DeleteDevice(device);
return(NULL);
}
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SDL_memset(device->hidden, 0, (sizeof *device->hidden));
SDL_memset(device->gl_data, 0, (sizeof *device->gl_data));
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/* 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;
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#if SDL_VIDEO_OPENGL
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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;
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#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 = {
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"windib", "Win95/98/NT/2000/CE GDI",
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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;
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if ( a->w == b->w )
return b->h - a->h;
else
return b->w - a->w;
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}
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 */
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mode = (SDL_Rect *)SDL_malloc(sizeof *mode);
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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 **)
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SDL_realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *));
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if ( SDL_modelist[index] == NULL ) {
SDL_OutOfMemory();
SDL_nummodes[index] = 0;
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SDL_free(mode);
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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;
}
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palette = (LOGPALETTE *)SDL_malloc(sizeof(*palette)+
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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);
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SDL_free(palette);
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}
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);
}
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#if !SDL_AUDIO_DISABLED
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DX5_SoundFocus(SDL_Window);
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#endif
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/* 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
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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
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/* Query for the desktop resolution */
EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &SDL_desktop_mode);
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/* 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);
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#ifdef _WIN32_WCE
if( this->hidden->supportRotation )
DIB_AddMode(this, settings.dmBitsPerPel,
settings.dmPelsHeight, settings.dmPelsWidth);
#endif
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}
/* Sort the mode lists */
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if( i > 1 )
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for ( i=0; i<NUM_MODELISTS; ++i ) {
if ( SDL_nummodes[i] > 0 ) {
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SDL_qsort(SDL_modelist[i], SDL_nummodes[i], sizeof *SDL_modelist[i], cmpmodes);
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}
}
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#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));
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#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;
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#ifdef _WIN32_WCE
this->hidden->origRotation = -1;
#endif
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/* 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 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);
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dib_hdr = (LPBITMAPINFOHEADER) SDL_malloc(dib_size);
SDL_memset(dib_hdr, 0, dib_size);
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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;
Uint32 Rmask, Gmask, Bmask;
/* Clean up any GL context that may be hanging around */
if ( current->flags & SDL_OPENGL ) {
WIN_GL_ShutDown(this);
}
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SDL_resizing = 1;
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/* 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);
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/* 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 )
Oct 6, 2002
Oct 6, 2002
545
546
video->flags |= SDL_FULLSCREEN;
#endif
Sep 29, 2005
Sep 29, 2005
547
Apr 26, 2001
Apr 26, 2001
548
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550
551
#ifndef NO_CHANGEDISPLAYSETTINGS
/* Set fullscreen mode if appropriate */
if ( (flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) {
DEVMODE settings;
Jan 30, 2006
Jan 30, 2006
552
BOOL changed;
Apr 26, 2001
Apr 26, 2001
553
Feb 7, 2006
Feb 7, 2006
554
SDL_memset(&settings, 0, sizeof(DEVMODE));
Apr 26, 2001
Apr 26, 2001
555
settings.dmSize = sizeof(DEVMODE);
Mar 4, 2006
Mar 4, 2006
556
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#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
Apr 26, 2001
Apr 26, 2001
611
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settings.dmBitsPerPel = video->format->BitsPerPixel;
settings.dmPelsWidth = width;
settings.dmPelsHeight = height;
settings.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL;
Feb 6, 2006
Feb 6, 2006
615
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if ( width <= (int)SDL_desktop_mode.dmPelsWidth &&
height <= (int)SDL_desktop_mode.dmPelsHeight ) {
Jan 30, 2006
Jan 30, 2006
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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);
}
Mar 4, 2006
Mar 4, 2006
625
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#else
changed = 1;
#endif
Jan 30, 2006
Jan 30, 2006
628
if ( changed ) {
Apr 26, 2001
Apr 26, 2001
629
video->flags |= SDL_FULLSCREEN;
Mar 10, 2002
Mar 10, 2002
630
SDL_fullscreen_mode = settings;
Apr 26, 2001
Apr 26, 2001
631
}
Mar 4, 2006
Mar 4, 2006
632
Apr 26, 2001
Apr 26, 2001
633
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635
}
#endif /* !NO_CHANGEDISPLAYSETTINGS */
Jun 7, 2001
Jun 7, 2001
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/* 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);
}
Mar 7, 2006
Mar 7, 2006
650
style = GetWindowLong(SDL_Window, GWL_STYLE);
Apr 26, 2001
Apr 26, 2001
651
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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;
}
}
Aug 20, 2002
Aug 20, 2002
673
#if WS_MAXIMIZE
Apr 26, 2001
Apr 26, 2001
674
if (IsZoomed(SDL_Window)) style |= WS_MAXIMIZE;
May 23, 2001
May 23, 2001
675
#endif
Apr 26, 2001
Apr 26, 2001
676
}
Aug 9, 2001
Aug 9, 2001
677
Aug 19, 2002
Aug 19, 2002
678
/* DJM: Don't piss of anyone who has setup his own window */
Jan 29, 2006
Jan 29, 2006
679
if ( !SDL_windowid )
Mar 7, 2006
Mar 7, 2006
680
SetWindowLong(SDL_Window, GWL_STYLE, style);
Apr 26, 2001
Apr 26, 2001
681
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/* 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);
}
Feb 7, 2006
Feb 7, 2006
698
binfo = (BITMAPINFO *)SDL_malloc(binfo_size);
Apr 26, 2001
Apr 26, 2001
699
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726
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 ) {
Feb 7, 2006
Feb 7, 2006
727
SDL_memset(binfo->bmiColors, 0,
Apr 26, 2001
Apr 26, 2001
728
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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);
Feb 7, 2006
Feb 7, 2006
737
SDL_free(binfo);
Apr 26, 2001
Apr 26, 2001
738
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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;
}
}
Mar 4, 2006
Mar 4, 2006
753
#ifndef _WIN32_WCE
Apr 26, 2001
Apr 26, 2001
754
/* Resize the window */
Jan 29, 2006
Jan 29, 2006
755
if ( !SDL_windowid && !IsZoomed(SDL_Window) ) {
Mar 4, 2006
Mar 4, 2006
756
757
758
#else
if ( !SDL_windowid ) {
#endif
Aug 19, 2002
Aug 19, 2002
759
HWND top;
Apr 26, 2001
Apr 26, 2001
760
UINT swp_flags;
Jan 29, 2006
Jan 29, 2006
761
762
const char *window = NULL;
const char *center = NULL;
Feb 16, 2004
Feb 16, 2004
763
764
if ( !SDL_windowX && !SDL_windowY ) {
Feb 7, 2006
Feb 7, 2006
765
766
window = SDL_getenv("SDL_VIDEO_WINDOW_POS");
center = SDL_getenv("SDL_VIDEO_CENTERED");
Feb 16, 2004
Feb 16, 2004
767
if ( window ) {
Feb 7, 2006
Feb 7, 2006
768
if ( SDL_sscanf(window, "%d,%d", &x, &y) == 2 ) {
Feb 16, 2004
Feb 16, 2004
769
770
771
SDL_windowX = x;
SDL_windowY = y;
}
Feb 7, 2006
Feb 7, 2006
772
if ( SDL_strcmp(window, "center") == 0 ) {
Feb 16, 2004
Feb 16, 2004
773
774
775
776
777
center = window;
}
}
}
swp_flags = (SWP_NOCOPYBITS | SWP_SHOWWINDOW);
Apr 26, 2001
Apr 26, 2001
778
Feb 16, 2004
Feb 16, 2004
779
780
781
782
bounds.left = SDL_windowX;
bounds.top = SDL_windowY;
bounds.right = SDL_windowX+video->w;
bounds.bottom = SDL_windowY+video->h;
Mar 7, 2006
Mar 7, 2006
783
AdjustWindowRectEx(&bounds, GetWindowLong(SDL_Window, GWL_STYLE), FALSE, 0);
Apr 26, 2001
Apr 26, 2001
784
785
width = bounds.right-bounds.left;
height = bounds.bottom-bounds.top;
Feb 16, 2004
Feb 16, 2004
786
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788
789
790
791
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;
Nov 12, 2004
Nov 12, 2004
792
793
794
} else if ( SDL_windowX || SDL_windowY || window ) {
x = bounds.left;
y = bounds.top;
Feb 16, 2004
Feb 16, 2004
795
796
797
798
} else {
x = y = -1;
swp_flags |= SWP_NOMOVE;
}
Aug 19, 2002
Aug 19, 2002
799
800
801
802
803
804
if ( flags & SDL_FULLSCREEN ) {
top = HWND_TOPMOST;
} else {
top = HWND_NOTOPMOST;
}
SetWindowPos(SDL_Window, top, x, y, width, height, swp_flags);
Jan 29, 2006
Jan 29, 2006
805
806
807
808
if ( !(flags & SDL_FULLSCREEN) ) {
SDL_windowX = SDL_bounds.left;
SDL_windowY = SDL_bounds.top;
}
Apr 26, 2001
Apr 26, 2001
809
810
SetForegroundWindow(SDL_Window);
}
Jan 29, 2006
Jan 29, 2006
811
SDL_resizing = 0;
Apr 26, 2001
Apr 26, 2001
812
813
814
815
816
817
818
819
/* Set up for OpenGL */
if ( flags & SDL_OPENGL ) {
if ( WIN_GL_SetupWindow(this) < 0 ) {
return(NULL);
}
video->flags |= SDL_OPENGL;
}
May 23, 2001
May 23, 2001
820
Apr 26, 2001
Apr 26, 2001
821
822
823
824
825
826
827
828
829
830
831
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833
834
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844
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848
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850
851
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853
854
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856
857
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859
860
861
/* 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);
}
Jan 19, 2006
Jan 19, 2006
862
Apr 26, 2001
Apr 26, 2001
863
864
int DIB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
{
Jan 29, 2006
Jan 29, 2006
865
866
#if !defined(_WIN32_WCE) || (_WIN32_WCE >= 400)
HDC hdc, mdc;
Apr 26, 2001
Apr 26, 2001
867
RGBQUAD *pal;
Jan 19, 2006
Jan 19, 2006
868
#else
Jan 29, 2006
Jan 29, 2006
869
HDC hdc;
May 23, 2001
May 23, 2001
870
#endif
Jan 29, 2006
Jan 29, 2006
871
int i;
Apr 26, 2001
Apr 26, 2001
872
873
874
875
876
877
/* Update the display palette */
hdc = GetDC(SDL_Window);
if ( screen_pal ) {
PALETTEENTRY *entries;
Feb 6, 2006
Feb 6, 2006
878
entries = SDL_stack_alloc(PALETTEENTRY, ncolors);
Apr 26, 2001
Apr 26, 2001
879
880
881
882
883
884
885
886
887
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);
Feb 6, 2006
Feb 6, 2006
888
SDL_stack_free(entries);
Apr 26, 2001
Apr 26, 2001
889
890
}
Jan 29, 2006
Jan 29, 2006
891
#if !defined(_WIN32_WCE) || (_WIN32_WCE >= 400)
Apr 26, 2001
Apr 26, 2001
892
/* Copy palette colors into DIB palette */
Feb 6, 2006
Feb 6, 2006
893
pal = SDL_stack_alloc(RGBQUAD, ncolors);
Apr 26, 2001
Apr 26, 2001
894
895
896
897
898
899
900
901
902
903
904
905
906
907
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);
Feb 6, 2006
Feb 6, 2006
908
SDL_stack_free(pal);
May 23, 2001
May 23, 2001
909
#endif
Apr 26, 2001
Apr 26, 2001
910
911
912
913
ReleaseDC(SDL_Window, hdc);
return(1);
}
Jan 19, 2006
Jan 19, 2006
914
Apr 26, 2001
Apr 26, 2001
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
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 */
}
Apr 11, 2002
Apr 11, 2002
930
void DIB_SwapGamma(_THIS)
Apr 26, 2001
Apr 26, 2001
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
{
#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 */
}
Apr 11, 2002
Apr 11, 2002
949
void DIB_QuitGamma(_THIS)
Apr 26, 2001
Apr 26, 2001
950
951
952
953
954
955
956
957
958
959
960
961
962
{
#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 */
Feb 7, 2006
Feb 7, 2006
963
SDL_free(gamma_saved);
Apr 26, 2001
Apr 26, 2001
964
965
966
967
968
gamma_saved = 0;
}
#endif /* !NO_GAMMA_SUPPORT */
}
Apr 11, 2002
Apr 11, 2002
969
int DIB_SetGammaRamp(_THIS, Uint16 *ramp)
Apr 26, 2001
Apr 26, 2001
970
{
Apr 11, 2002
Apr 11, 2002
971
972
973
974
#ifdef NO_GAMMA_SUPPORT
SDL_SetError("SDL compiled without gamma ramp support");
return -1;
#else
Apr 26, 2001
Apr 26, 2001
975
976
977
978
979
HDC hdc;
BOOL succeeded;
/* Set the ramp for the display */
if ( ! gamma_saved ) {
Feb 7, 2006
Feb 7, 2006
980
gamma_saved = (WORD *)SDL_malloc(3*256*sizeof(*gamma_saved));
Apr 26, 2001
Apr 26, 2001
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
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;
Apr 11, 2002
Apr 11, 2002
997
#endif /* !NO_GAMMA_SUPPORT */
Apr 26, 2001
Apr 26, 2001
998
999
}
Apr 11, 2002
Apr 11, 2002
1000
int DIB_GetGammaRamp(_THIS, Uint16 *ramp)