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/**
* $Id$
* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version. The Blender
* Foundation also sells licenses for use in proprietary software under
* the Blender License. See http://www.blender.org/BL/ for information
* about this.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL/BL DUAL LICENSE BLOCK *****
*/
/**
* $Id$
* Copyright (C) 2001 NaN Technologies B.V.
* @author Maarten Gribnau
* @date September 21, 2001
*/
#include "GHOST_DisplayManagerWin32.h"
#include "GHOST_Debug.h"
// We do not support multiple monitors at the moment
#include <windows.h>
#define COMPILE_MULTIMON_STUBS
#include <multimon.h>
GHOST_DisplayManagerWin32::GHOST_DisplayManagerWin32(void)
{
}
GHOST_TSuccess GHOST_DisplayManagerWin32::getNumDisplays(GHOST_TUns8& numDisplays) const
{
// We do not support multiple monitors at the moment
numDisplays = ::GetSystemMetrics(SM_CMONITORS);
return numDisplays > 0 ? GHOST_kSuccess : GHOST_kFailure;
}
/*
* When you call EnumDisplaySettings with iModeNum set to zero, the operating system
* initializes and caches information about the display device. When you call
* EnumDisplaySettings with iModeNum set to a non-zero value, the function returns
* the information that was cached the last time the function was called with iModeNum
* set to zero.
*/
GHOST_TSuccess GHOST_DisplayManagerWin32::getNumDisplaySettings(GHOST_TUns8 display, GHOST_TInt32& numSettings) const
{
GHOST_ASSERT((display==kMainDisplay), "GHOST_DisplayManagerWin32::getNumDisplaySettings(): only main displlay is supported");
numSettings = 0;
DEVMODE dm;
while (::EnumDisplaySettings(NULL, numSettings, &dm)) {
numSettings++;
}
return GHOST_kSuccess;
}
GHOST_TSuccess GHOST_DisplayManagerWin32::getDisplaySetting(GHOST_TUns8 display, GHOST_TInt32 index, GHOST_DisplaySetting& setting) const
{
GHOST_ASSERT((display==kMainDisplay), "GHOST_DisplayManagerWin32::getDisplaySetting(): only main display is supported");
GHOST_TSuccess success;
DEVMODE dm;
if (::EnumDisplaySettings(NULL, index, &dm)) {
#ifdef GHOST_DEBUG
printf("display mode: width=%d, height=%d, bpp=%d, frequency=%d\n", dm.dmPelsWidth, dm.dmPelsHeight, dm.dmBitsPerPel, dm.dmDisplayFrequency);
#endif // GHOST_DEBUG
setting.xPixels = dm.dmPelsWidth;
setting.yPixels = dm.dmPelsHeight;
setting.bpp = dm.dmBitsPerPel;
/* When you call the EnumDisplaySettings function, the dmDisplayFrequency member
* may return with the value 0 or 1. These values represent the display hardware's
* default refresh rate. This default rate is typically set by switches on a display
* card or computer motherboard, or by a configuration program that does not use
* Win32 display functions such as ChangeDisplaySettings.
*/
/* First, we tried to explicitly set the frequency to 60 if EnumDisplaySettings
* returned 0 or 1 but this doesn't work since later on an exact match will
* be searched. And this will never happen if we change it to 60. Now we rely
* on the default h/w setting.
*/
setting.frequency = dm.dmDisplayFrequency;
success = GHOST_kSuccess;
}
else {
success = GHOST_kFailure;
}
return success;
}
GHOST_TSuccess GHOST_DisplayManagerWin32::getCurrentDisplaySetting(GHOST_TUns8 display, GHOST_DisplaySetting& setting) const
{
GHOST_ASSERT((display==kMainDisplay), "GHOST_DisplayManagerWin32::getCurrentDisplaySetting(): only main display is supported");
return getDisplaySetting(kMainDisplay, ENUM_CURRENT_SETTINGS, setting);
}
GHOST_TSuccess GHOST_DisplayManagerWin32::setCurrentDisplaySetting(GHOST_TUns8 display, const GHOST_DisplaySetting& setting)
{
GHOST_ASSERT((display==kMainDisplay), "GHOST_DisplayManagerWin32::setCurrentDisplaySetting(): only main display is supported");
GHOST_DisplaySetting match;
GHOST_TSuccess success = findMatch(display, setting, match);
DEVMODE dm;
int i = 0;
while (::EnumDisplaySettings(NULL, i++, &dm)) {
if ((dm.dmBitsPerPel == match.bpp) &&
(dm.dmPelsWidth == match.xPixels) &&
(dm.dmPelsHeight == match.yPixels) &&
(dm.dmDisplayFrequency == match.frequency)) {
break;
}
}
/*
dm.dmBitsPerPel = match.bpp;
dm.dmPelsWidth = match.xPixels;
dm.dmPelsHeight = match.yPixels;
dm.dmDisplayFrequency = match.frequency;
dm.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT | DM_DISPLAYFREQUENCY;
dm.dmSize = sizeof(DEVMODE);
dm.dmDriverExtra = 0;
*/
#ifdef GHOST_DEBUG
printf("display change: Requested settings:\n");
printf(" dmBitsPerPel=%d\n", dm.dmBitsPerPel);
printf(" dmPelsWidth=%d\n", dm.dmPelsWidth);
printf(" dmPelsHeight=%d\n", dm.dmPelsHeight);
printf(" dmDisplayFrequency=%d\n", dm.dmDisplayFrequency);
#endif // GHOST_DEBUG
LONG status = ::ChangeDisplaySettings(&dm, CDS_FULLSCREEN);
#ifdef GHOST_DEBUG
switch (status)
{
case DISP_CHANGE_SUCCESSFUL:
printf("display change: The settings change was successful.\n");
break;
case DISP_CHANGE_RESTART:
printf("display change: The computer must be restarted in order for the graphics mode to work.\n");
break;
case DISP_CHANGE_BADFLAGS:
printf("display change: An invalid set of flags was passed in.\n");
break;
case DISP_CHANGE_BADPARAM:
printf("display change: An invalid parameter was passed in. This can include an invalid flag or combination of flags.\n");
break;
case DISP_CHANGE_FAILED:
printf("display change: The display driver failed the specified graphics mode.\n");
break;
case DISP_CHANGE_BADMODE:
printf("display change: The graphics mode is not supported.\n");
break;
case DISP_CHANGE_NOTUPDATED:
printf("display change: Windows NT: Unable to write settings to the registry.\n");
break;
default:
printf("display change: Return value invalid\n");
break;
}
#endif // GHOST_DEBUG
return status == DISP_CHANGE_SUCCESSFUL? GHOST_kSuccess : GHOST_kFailure;
}
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