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os/graphics/windowing/windowserver/nga/SERVER/scrdev.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution. 
     1 // Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // Screen device

    15 // 

    16 //

    17 

    18 #include "ScrDev.H"

    19 #include "Direct.H"

    20 

    21 #include <hal.h>

    22 #include <graphics/wsscreendevice.h>

    23 #include "W32STD.H"

    24 #include "server.h"

    25 #include "gc.h"

    26 #include "rootwin.h"

    27 #include "windowgroup.h"

    28 #include "wstop.h"

    29 #include "EVENT.H"

    30 #include "panics.h"

    31 #include "../CLIENT/w32comm.h"

    32 #include "devicemap.h"

    33 #include <graphics/wsdisplaycontrol.h>

    34 #include "wsdisplaychangeao.h"

    35 #include <graphics/wstestscreencapture.h>

    36 #include <graphics/WSGRAPHICDRAWERINTERFACE.H>

    37 

    38 const TInt KEikSrvsSid=0x10003a4a;

    39 

    40 static _LIT_SECURITY_POLICY_C1(KSecurityPolicy_WriteDeviceData,ECapabilityWriteDeviceData);

    41 	

    42 /*DWsScreenDevice*/

    43 

    44 DWsScreenDevice::DWsScreenDevice(CWsClient* aOwner, TInt aDefaultScreenNumber, TUint aClientScreenDevicePointer)

    45 		: CWsScreenObject(aOwner, WS_HANDLE_SCREEN_DEVICE, CWsTop::Screen( aDefaultScreenNumber ))

    46 		,iClientScreenDevicePointer(aClientScreenDevicePointer)

    47 	{

    48 	MWsScreen* pOI=Screen();

    49 	iDispCont=pOI->ObjectInterface<MWsDisplayControl>();

    50 	iDispMap =pOI->ObjectInterface<MWsDisplayMapping>();

    51 	iTestScreenCapture = pOI->ObjectInterface<MWsTestScreenCapture>();

    52 	}

    53 

    54 DWsScreenDevice::~DWsScreenDevice()

    55 	{

    56 	//remove it for display change notification, if it asked for notification

    57 	Screen()->RemoveNotificationClient(iWsOwner);

    58 	}

    59 

    60 void DWsScreenDevice::CopyScreenToBitmapL(const TRect &aRect, TInt aHandle)

    61 	{

    62 	iScreen->DoRedrawNow();

    63 

    64 	CFbsBitmap *bitmap=new(ELeave) CFbsBitmap();

    65 	CleanupStack::PushL(bitmap);

    66 	TInt ret = bitmap->Duplicate(aHandle);

    67 	if (ret == KErrNoMemory)

    68 		{

    69 		User::Leave(ret);

    70 		}

    71 	if (ret != KErrNone)

    72 		OwnerPanic(EWservPanicBitmap);

    73 

    74 	iScreen->ScreenDevice().CopyScreenToBitmapL(bitmap, aRect);

    75 	CleanupStack::PopAndDestroy(bitmap);

    76 	}

    77 

    78 void DWsScreenDevice::CommandL(TInt aOpcode, const TAny *aCmdData)

    79 	{

    80 	TWsSdCmdUnion pData;

    81 	pData.any=aCmdData;

    82 	switch(aOpcode)

    83 		{

    84 		case EWsSdOpGetNumScreenModes:

    85 			SetReply(iScreen->NumScreenSizeModes());

    86 			break;

    87 		case EWsSdOpGetScreenMode:

    88 			SetReply(iScreen->ScreenSizeMode());

    89 			break;

    90 		case EWsSdOpSetScreenMode:

    91 			{

    92 			if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for CWsScreenDevice::SetScreenMode API")))

    93 				{

    94 				iWsOwner->PPanic(EWservPanicPermissionDenied);

    95 				}

    96 			SetScreenMode(*pData.Int);

    97 			}

    98 			break;

    99 		case EWsSdOpSetModeRotation:

   100 			{

   101 			if(KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for CWsScreenDevice::SetModeRotation API")))

   102 				{

   103 				TClientPanic panic=iScreen->SetModeRotation(pData.SetScreenRotation->mode,pData.SetScreenRotation->rotation);

   104 				if (panic)

   105 					OwnerPanic(panic);

   106 				}

   107 			}

   108 			break;

   109 		case EWsSdOpGetRotationList:

   110 			if (!iScreen->IsValidScreenSizeMode(*pData.Int))

   111 				OwnerPanic(EWservPanicScreenModeNumber);

   112 			SetReply(iScreen->ScreenSizeModeData(*pData.Int).iAlternativeRotations);

   113 			break;

   114 		case EWsSdOpGetScreenModeSizeAndRotation:

   115 			GetScreenSizeAndRotationCmd(*pData.Int);

   116 			break;

   117 		case EWsSdOpGetScreenModeSizeAndRotation2:

   118 			GetScreenSizeAndRotationCmd2(*pData.Int);

   119 			break;

   120 		case EWsSdOpSetScreenSizeAndRotation:

   121 			SetScreenSizeAndRotation(*pData.PixelsTwipsAndRotation);

   122 			break;

   123 		case EWsSdOpSetScreenSizeAndRotation2:

   124 			SetScreenSizeAndRotation(*pData.PixelsAndRotation);

   125 			break;

   126 		case EWsSdOpGetDefaultScreenSizeAndRotation:

   127 			GetScreenSizeAndRotationCmd(iScreen->ScreenSizeMode());

   128 			break;

   129 		case EWsSdOpGetDefaultScreenSizeAndRotation2:

   130 			GetScreenSizeAndRotationCmd2(iScreen->ScreenSizeMode());

   131 			break;

   132 		case EWsSdOpGetScreenModeDisplayMode:

   133 			GetScreenModeDisplayMode(*pData.Int);

   134 			break;

   135 		case EWsSdOpGetScreenModeScale:

   136 			if (!iScreen->IsValidScreenSizeMode(*pData.Int))

   137 				OwnerPanic(EWservPanicScreenModeNumber);

   138 			CWsClient::ReplySize(TSize(1,1));

   139 			break;

   140 		case EWsSdOpGetCurrentScreenModeScale:

   141 			CWsClient::ReplySize(TSize(1,1));

   142 			break;

   143 		case EWsSdOpSetAppScreenMode:

   144 			SetAppScreenMode(*pData.Int);

   145 			break;

   146 		case EWsSdOpGetCurrentScreenModeScaledOrigin:

   147 			//scaling is not supported, but origin is.

   148 			CWsClient::ReplyPoint(iScreen->Origin());

   149 			break;

   150 		case EWsSdOpGetScreenModeScaledOrigin:

   151 			{

   152 			if (!iScreen->IsValidScreenSizeMode(*pData.Int))

   153 				OwnerPanic(EWservPanicScreenModeNumber);

   154 			//scaling is not supported, but origin is.

   155 			const TSizeMode& sizeMode=iScreen->ScreenSizeModeData(*pData.Int);

   156 			CWsClient::ReplyPoint(sizeMode.iOrigin);

   157 			}

   158 			break;

   159 		case EWsSdOpGetCurrentScreenModeAttributes:

   160 			GetCurrentScreenModeAttributes();

   161 			break;

   162 		case EWsSdOpSetCurrentScreenModeAttributes:

   163 			if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for CWsScreenDevice::SetCurrentScreenModeAttributes API, API should be used for test purposes only")))

   164 				{

   165 				iWsOwner->PPanic(EWservPanicPermissionDenied);

   166 				}

   167 			SetCurrentScreenModeAttributes(*pData.ScreenSizeMode);

   168 			break;

   169 		case EWsSdOpSetScreenModeEnforcement:

   170 			{

   171 			if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for CWsScreenDevice::SetScreenModeEnforcement API")))

   172 				{

   173 				iWsOwner->PPanic(EWservPanicPermissionDenied);

   174 				}

   175 			if (!iScreen->SetScreenModeEnforcement(*pData.Int))

   176 				OwnerPanic(EWservPanicScreenEnforcementMode);

   177 			}

   178 			break;

   179 		case EWsSdOpScreenModeEnforcement:

   180 			SetReply(iScreen->SizeEnforcementMode());

   181 			break;

   182 		case EWsSdOpGetDefaultScreenModeOrigin:

   183 			CWsClient::ReplyPoint(iScreen->Origin());

   184 			break;

   185 		case EWsSdOpGetScreenModeOrigin:

   186 			{

   187 			if (!iScreen->IsValidScreenSizeMode(*pData.Int))

   188 				OwnerPanic(EWservPanicScreenModeNumber);

   189 			const TSizeMode& mode=iScreen->ScreenSizeModeData(*pData.Int);

   190 			CWsClient::ReplyPoint(mode.iOrigin);

   191 			}

   192 			break;

   193 		case EWsSdOpPixel:

   194 			{

   195 			iScreen->DoRedrawNow();

   196 			TRgb rgb;

   197 			iScreen->ScreenDevice().GetPixel(rgb,*pData.Point);

   198 			SetReply(rgb.Internal());

   199 			}

   200 			break;

   201 		case EWsSdOpGetScanLine:

   202 			iScreen->DoRedrawNow();

   203 			iScreen->GetScanLine(pData.GetScanLine);

   204 			break;

   205 		case EWsSdOpTwipsSize:

   206 			CWsClient::ReplySize(AppScreenSizeInTwips()); 

   207 			break;

   208 		case EWsSdOpPixelSize:

   209 			CWsClient::ReplySize(AppScreenSizeInPixels()); 

   210 			break;

   211 		case EWsSdOpHorizontalTwipsToPixels:

   212 			SetReply(iScreen->DeviceMap().HorizontalTwipsToPixels(*pData.UInt));

   213 			break;

   214 		case EWsSdOpVerticalTwipsToPixels:

   215 			SetReply(iScreen->DeviceMap().VerticalTwipsToPixels(*pData.UInt));

   216 			break;

   217 		case EWsSdOpHorizontalPixelsToTwips:

   218 			SetReply(iScreen->DeviceMap().HorizontalPixelsToTwips(*pData.UInt));

   219 			break;

   220 		case EWsSdOpVerticalPixelsToTwips:

   221 			SetReply(iScreen->DeviceMap().VerticalPixelsToTwips(*pData.UInt));

   222 			break;

   223 		case EWsSdOpPointerRect:

   224 			{

   225 			MWsScreen* pOI=iScreen;

   226 			const MWsScreenDevice* screenDevice = pOI->ObjectInterface<MWsScreenDevice>();

   227 			WS_ASSERT_ALWAYS(screenDevice, EWsPanicScreenDeviceMissing);

   228 			CWsClient::ReplyRect(screenDevice->PointerRect());

   229 			}

   230 			break;

   231 		case EWsSdOpFree:

   232 			{

   233 			// Mark any group windows associated with the screen device being deleted

   234 			CWsRootWindow* root=iScreen->RootWindow();

   235 			for (CWsWindowGroup* grp = root->Child(); grp; grp = grp->NextSibling())

   236 				{

   237 				if (grp->Device() == this)

   238 					{

   239 #if defined(_DEBUG)

   240  					grp->SetScreenDeviceDeleted();

   241 #endif

   242 					grp->SetScreenDevice(NULL);

   243 					}

   244 				}

   245 			}

   246 			// Let our owner (CWsClient) know that a screen device is being deleted so it

   247 			// can check whether to reset its iPrimaryScreenDevice member or not

   248 			if (WsOwner())				

   249 				WsOwner()->NotifyScreenDeviceDeleted(this);

   250 			delete this;

   251 			break;

   252 		case EWsSdOpDisplayMode:

   253 			SetReply(iScreen->DisplayMode());

   254 			break;

   255 		case EWsSdOpRectCompare:

   256 			{

   257 //			if (pData.RectCompare->flags&CWsScreenDevice::EIncludeSprite)

   258 //				{

   259 //				SpriteManager()->IncrementProcessingSprites();

   260 //				}

   261 

   262 			RWsTextCursor * cursor = 0;

   263 			if (!(pData.RectCompare->flags&CWsScreenDevice::EIncludeTextCursor))	

   264 				cursor = CWsTop::CurrentTextCursor();

   265 			if (cursor)

   266 				cursor->Disable();

   267 			iScreen->DoRedrawNow();

   268 			SetReply(iScreen->ScreenDevice().RectCompare(pData.RectCompare->rect1, pData.RectCompare->rect2));

   269 

   270 			if (cursor)

   271 				cursor->Enable();

   272 

   273 //			if (pData.RectCompare->flags&CWsScreenDevice::EIncludeSprite)

   274 //				{

   275 //				SpriteManager()->DecrementProcessingSprites();

   276 //				}

   277 			}

   278 			break;

   279 		case EWsSdOpCopyScreenToBitmap:

   280 			CopyScreenToBitmapL(TRect(iScreen->SizeInPixels()), pData.CopyScreenToBitmap->handle);

   281 			break;

   282 		case EWsSdOpCopyScreenToBitmap2:

   283 			CopyScreenToBitmapL(pData.CopyScreenToBitmap2->rect,pData.CopyScreenToBitmap2->handle);

   284 			break;

   285 		case EWsSdOpPaletteAttributes:

   286 			{

   287 			TInt numEntries = 0;

   288 			MWsScreen* pOI=iScreen;

   289 			MWsPalette* palette = pOI->ObjectInterface<MWsPalette>();

   290 

   291 			if (palette)

   292 				{

   293 				TBool modifiable;

   294 				palette->PaletteAttributes(modifiable, numEntries);

   295 				if (modifiable)

   296 					numEntries |= EWsSdSetableBitFlag;

   297 				}

   298 			else

   299 				{

   300 				TInt aGrays;

   301 				iScreen->MaxNumColors(numEntries, aGrays);

   302 				}

   303 

   304 			SetReply(numEntries);

   305 			}

   306 			break;

   307 		case EWsSdOpSetPalette:

   308 			{

   309 			if(!KSecurityPolicy_WriteDeviceData().CheckPolicy(iWsOwner->ClientMessage(),__PLATSEC_DIAGNOSTIC_STRING("Capability check failed for CWsScreenDevice::SetPalette API")))

   310 				{

   311 				User::Leave(KErrPermissionDenied);

   312 				}

   313 			SetPaletteL();

   314 			}

   315 			break;

   316 		case EWsSdOpGetPalette:

   317 			GetPalette(*pData.Int);

   318 			break;

   319 			

   320 		case EWsSdOpGetScreenNumber:

   321 			SetReply(iScreen->ScreenNumber());

   322 			break;

   323 		case EWsSdOpGetScreenSizeModeList:

   324 			SetReply(iScreen->GetScreenSizeModeListL());

   325 			break;

   326 		case EWsClOpSetBackLight:

   327 			{

   328 			TInt err=KErrNone;

   329 			if(Screen()->BackLightFlag() && iWsOwner->ClientMessage().SecureId()==KEikSrvsSid)

   330 				{

   331 				TWindowServerEvent::ProcessErrorMessages(TWsErrorMessage::EBackLight, err=HAL::Set(iScreen->ScreenNumber(),HALData::EBacklightState,*pData.Int));

   332 				SetReply(err);

   333 				}

   334 			else

   335 				{

   336 				User::Leave(KErrPermissionDenied);				

   337 				}

   338 			}

   339 			break;

   340 		case EWsSdOpIsScreenModeDynamic:

   341 			{

   342 			TInt mode = (*pData.Int == -1) ? iAppMode : *pData.Int;

   343 			TInt flags=0;

   344 			TRAPD(err,flags = Screen()->ModeFlagsL(mode));

   345 			if (err == KErrNone && flags & MWsScreenConfigList::EDynamic)

   346 				{

   347 				SetReply(ETrue);

   348 				}

   349 			else

   350 				{

   351 				SetReply(EFalse);

   352 				}

   353 			}

   354 			break;

   355 			

   356 		default:

   357 			ExtensionCommandL(aOpcode, aCmdData);

   358 			break;

   359 		}

   360 	}

   361 

   362 void DWsScreenDevice::ExtensionCommandL(TInt aOpcode, const TAny *aCmdData)

   363 	{

   364 	TWsSdCmdUnion pData;

   365 	pData.any=aCmdData;

   366 	switch(aOpcode)

   367 		{

   368 		case EWsSdOpExtensionsSupported:

   369 			{

   370 			TInt reply=0;

   371 			if (iDispCont)

   372 				{

   373 				reply|=TWsSdXDisplayControl;

   374 				}

   375 			if(iDispMap)

   376 				{

   377 				reply|=TWsSdXDisplayMapping;

   378 				}

   379 			MWsScreen* pOI=Screen();

   380 			iTestScreenCapture = pOI->ObjectInterface<MWsTestScreenCapture>();

   381 			if (iTestScreenCapture != NULL)

   382 				{

   383 				reply|=TWsSdXDebugComposition;

   384 				}

   385 			SetReply(reply);

   386 			}

   387 			break; 

   388 		case EWsSdOpXDcGetNumberOfResolutions:

   389 			{

   390 			if (iDispCont)

   391 				{

   392 				SetReply(iDispCont->NumberOfResolutions());

   393 				}

   394 			else

   395 				{

   396 				SetReply(KErrNotSupported);

   397 				}

   398 			}

   399 			break; 

   400 		case EWsSdOpXDcGetResolutionsList:

   401 			{

   402 			if (iDispCont)

   403 				{

   404 				RArray<MWsDisplayControl::TResolution> resolutions;

   405 				TInt err = iDispCont->GetResolutions(resolutions);

   406 				if(err != KErrNone)

   407 					{

   408 					SetReply(err);

   409 					resolutions.Close();

   410 					break;

   411 					}

   412 				TInt bufLength = resolutions.Count()*sizeof(MWsDisplayControl::TResolution);

   413 				SetReply(bufLength);

   414 				 

   415 				if(CWsClient::ReplyBufSpace() >= bufLength)

   416 					{	//must not overflow the client's allocated storage.

   417 					CWsClient::ReplyBuf(&resolutions[0], bufLength);

   418 					}

   419 				resolutions.Close();

   420 				}

   421 			else

   422 				{

   423 				SetReply(KErrNotSupported);

   424 				}

   425 			}

   426 			break;

   427 		case EWsSdOpXDcGetConfiguration:

   428 			{

   429 			if(iDispCont)

   430 				{

   431 				TDisplayConfiguration dispConfig = *pData.DisplayConfiguration;

   432 				if (dispConfig.Version() < sizeof(TDisplayConfiguration))

   433 					{

   434 					//Test not required until there are multiple configuration sizes

   435 					__ASSERT_COMPILE(sizeof(TDisplayConfiguration1)==sizeof(TDisplayConfiguration));

   436 					//if (dispConfig.Version() != sizeof(TDisplayConfiguration1))

   437 						{

   438 						CWsClient::PanicCurrentClient(EWservPanicInvalidDisplayConfiguration);

   439 						}

   440 					}

   441 				iDispCont->GetConfiguration(dispConfig);

   442 				TInt expectedVersion = pData.DisplayConfiguration->Version();

   443 				if (sizeof(TDisplayConfiguration)< expectedVersion)

   444 					expectedVersion = sizeof(TDisplayConfiguration);

   445 				CWsClient::ReplyBuf(&dispConfig, expectedVersion);

   446 				}

   447 			else

   448 				{

   449 				SetReply(KErrNotSupported);

   450 				}

   451 			SetReply(KErrNone);

   452 			}

   453 			break;

   454 		case EWsSdOpXDcSetConfiguration:

   455 			{

   456 			TDisplayConfiguration dispConfig = *pData.DisplayConfiguration;

   457 			if (dispConfig.Version() < TDisplayConfiguration().Version())

   458 				{

   459 				//Test not required until there are multiple configuration sizes

   460 				__ASSERT_COMPILE(sizeof(TDisplayConfiguration1)==sizeof(TDisplayConfiguration));

   461 				//if (dispConfig.Version() != sizeof(TDisplayConfiguration1))

   462 					{

   463 					CWsClient::PanicCurrentClient(EWservPanicInvalidDisplayConfiguration);

   464 					}

   465 				}

   466 			TInt reply=Screen()->SetConfiguration(dispConfig);

   467 			SetReply(reply);

   468 			}

   469 			break;

   470 	

   471 		case EWsSdOpXDcGetPreferredDisplayVersion:

   472 			{

   473 			if (iDispCont)

   474 				{

   475 				SetReply(iDispCont->PreferredDisplayVersion());

   476 				}

   477 			else

   478 				{

   479 				SetReply(KErrNotSupported);

   480 				}

   481 			}

   482 			break;

   483 		case EWsSdOpXDcNotifyOnDisplayChange:

   484 			{

   485 			if(iDispCont)

   486 				{

   487 				SetReply(Screen()->AddNotificationClient(iWsOwner));

   488 				}

   489 			else

   490 				{

   491 				SetReply(KErrNotSupported);

   492 				}

   493 			}

   494 			break;

   495 		case EWsSdOpXDcNotifyOnDisplayChangeCancel:

   496 			{

   497 			if (iDispCont)

   498 				{

   499 				Screen()->RemoveNotificationClient(iWsOwner);

   500 				SetReply(KErrNone);

   501 				}

   502 			else

   503 				{

   504 				SetReply(KErrNotSupported);

   505 				}

   506 			}

   507 			break;

   508 		case EWsSdOpXTestScreenCapture:

   509 			TestScreenCaptureL(pData.any);

   510 			break;

   511 		case EWsSdOpXTestScreenCaptureSize:

   512 		    CWsClient::ReplySize(iScreen->SizeInPixels());

   513             break;

   514 		case EWsSdOpXDcDisplayChangeEventEnabled:

   515 			{

   516 			if(iDispCont)

   517 				{

   518 				if(Screen()->FindNotificationClient(iWsOwner) != KErrNotFound)

   519 					{

   520 					SetReply(1);

   521 					break;

   522 					}

   523 				}

   524 			

   525 			SetReply(0);

   526 		

   527 			}

   528 			break;

   529 		case EWsSdOpXDmMapExtent:

   530 			{

   531 			if(iDispMap)

   532 				{

   533 				TWsSdCmdMapCoordinates mapCoord = *pData.MapCoordinates;

   534 				TRect targetRect;

   535 				TInt err = iDispMap->MapCoordinates(mapCoord.sourceSpace, mapCoord.sourceRect, mapCoord.targetSpace, targetRect);

   536 				if(err != KErrNone)

   537 					{

   538 					SetReply(err);

   539 					}

   540 				else

   541 					{

   542 					CWsClient::ReplyBuf(&targetRect, sizeof(TRect));

   543 					SetReply(KErrNone);

   544 					}

   545 				}

   546 			else

   547 				{

   548 				SetReply(KErrNotSupported);

   549 				}

   550 			}

   551 			break;

   552 		default:

   553 			OwnerPanic(EWservPanicOpcode);

   554 			break;

   555 		}

   556 	}

   557 

   558 void DWsScreenDevice::SetScreenMode(TInt aMode)

   559 	{

   560 	if (!iScreen->IsValidScreenSizeMode(aMode))

   561 		OwnerPanic(EWservPanicScreenModeNumber);

   562 	iScreen->doSetScreenMode(aMode);

   563 	}

   564 

   565 TSize DWsScreenDevice::AppScreenSizeInPixels() const

   566 	{

   567 	if (iAppScreenSizeInPixels == TSize(-1,-1))

   568 		{

   569 		TSize returnSize;

   570 		TRAP_IGNORE(returnSize = iScreen->ScreenModeSizeInPixelsL(iAppMode));

   571 		return returnSize;

   572 		}

   573 	return iAppScreenSizeInPixels;

   574 	}

   575 

   576 TSize DWsScreenDevice::AppScreenSizeInTwips() const

   577 	{

   578 	if (iAppScreenSizeInTwips == TSize(-1,-1))

   579 		{

   580 		TSize returnSize;

   581 		TRAP_IGNORE(returnSize = iScreen->ScreenModeSizeInTwipsL(iAppMode));

   582 		return returnSize;

   583 		}

   584 	return iAppScreenSizeInTwips;

   585 	}

   586 

   587 TBool DWsScreenDevice::ScreenDeviceValidState() const

   588 	{

   589 	WS_ASSERT_DEBUG(iScreen->IsValidScreenSizeMode(iScreen->ScreenSizeMode()), EWsPanicInvalidScreenSizeMode);

   590 	const TSizeMode& currentMode=iScreen->ScreenSizeModeData();

   591 	TBool state=ETrue;

   592 	

   593 	// In all enforcement modes scale should match, so check scale first

   594 	if (iScreen->SizeEnforcementMode()!=ESizeEnforcementNone)

   595 		{

   596 		TSize appScreenSizeInPixels = AppScreenSizeInPixels();

   597 		if (currentMode.iRotation!=iAppRotation)

   598 			{

   599 			state=EFalse;

   600 			}

   601 		else if (!(appScreenSizeInPixels == currentMode.iScreenSize))

   602 			{

   603 			state=EFalse;

   604 			}

   605 		}

   606 	if (iScreen->SizeEnforcementMode()==ESizeEnforcementPixelsTwipsAndRotation)

   607 		{

   608 		TSize appScreenSizeInTwips = AppScreenSizeInTwips();

   609 		if (!(appScreenSizeInTwips == currentMode.iScreenTwipsSize))

   610 			{

   611 			state=EFalse;

   612 			}

   613 		}

   614 	return(state);

   615 	}

   616 

   617 void DWsScreenDevice::ConstructL()

   618 //

   619 // App specific construct

   620 //

   621 	{

   622 	NewObjL();

   623 	const TSizeMode& mode=iScreen->ScreenSizeModeData(iScreen->ScreenSizeMode());

   624 	TInt modeNumber = iScreen->ScreenSizeMode();

   625 	TInt flags = iScreen->ModeFlagsL(modeNumber);

   626 	if (flags & MWsScreenConfigList::EDynamic)

   627 		{

   628 		iAppScreenSizeInPixels = TSize(-1,-1);

   629 		iAppScreenSizeInTwips = TSize(-1,-1);

   630 		}

   631 	else

   632 		{

   633 		iAppScreenSizeInPixels=mode.iScreenSize;

   634 		iAppScreenSizeInTwips=mode.iScreenTwipsSize;

   635 		}

   636 	iAppRotation=mode.iRotation;

   637 	iAppMode=modeNumber;

   638 	}

   639 

   640 void DWsScreenDevice::SetScreenSizeAndRotation(const TPixelsTwipsAndRotation &aSar)

   641 	{

   642 	iAppScreenSizeInPixels=aSar.iPixelSize;

   643 	iAppScreenSizeInTwips=aSar.iTwipsSize;

   644 	iAppRotation=aSar.iRotation;

   645 	SetScreenDeviceValidStates(this);

   646 	TInt flags=0;

   647 	TRAP_IGNORE(flags = iScreen->ModeFlagsL(iScreen->ScreenSizeMode()));

   648 	if (flags & MWsScreenConfigList::EDynamic)

   649 		{

   650 		iAppScreenSizeInPixels = TSize(-1,-1);

   651 		iAppScreenSizeInTwips = TSize(-1,-1);

   652 		}

   653 	}

   654 

   655 void DWsScreenDevice::SetScreenSizeAndRotation(const TPixelsAndRotation &aSar)

   656 	{

   657 	iAppScreenSizeInPixels=aSar.iPixelSize;

   658 	iAppScreenSizeInTwips.iWidth=iScreen->DeviceMap().HorizontalPixelsToTwips(iAppScreenSizeInPixels.iWidth);

   659 	iAppScreenSizeInTwips.iHeight=iScreen->DeviceMap().VerticalPixelsToTwips(iAppScreenSizeInPixels.iHeight);

   660 	iAppRotation=aSar.iRotation;

   661 	SetScreenDeviceValidStates(this);

   662 	TInt flags=0;

   663 	TRAP_IGNORE(flags = iScreen->ModeFlagsL(iScreen->ScreenSizeMode()));

   664 	if (flags & MWsScreenConfigList::EDynamic)

   665 		{

   666 		iAppScreenSizeInPixels = TSize(-1,-1);

   667 		iAppScreenSizeInTwips = TSize(-1,-1);

   668 		}

   669 	}

   670 

   671 void DWsScreenDevice::GetCurrentScreenModeAttributes()

   672 	{

   673 	TSizeMode aModeData=iScreen->ScreenSizeModeData();

   674 	CWsClient::ReplyBuf(&aModeData,sizeof(aModeData));

   675 	}

   676 

   677 void DWsScreenDevice::SetCurrentScreenModeAttributes(const TSizeMode &aModeData)

   678 	{

   679 #if defined(_DEBUG)

   680 	if (aModeData.iScreenScale.iWidth==0 || aModeData.iScreenScale.iHeight==0)

   681 		OwnerPanic(EWservPanicScreenModeNumber);

   682 #endif

   683 	iScreen->SetCurrentScreenModeAttributes(aModeData);

   684 	}

   685 

   686 void DWsScreenDevice::GetScreenSizeAndRotationCmd(TInt aMode)

   687 	{

   688 	if (!iScreen->IsValidScreenSizeMode(aMode))

   689 		OwnerPanic(EWservPanicScreenModeNumber);

   690 	TPixelsTwipsAndRotation sar;

   691 	iScreen->GetScreenSizeAndRotation(sar,aMode);

   692 	CWsClient::ReplyBuf(&sar, sizeof(sar));

   693 	}

   694 

   695 void DWsScreenDevice::GetScreenSizeAndRotationCmd2(TInt aMode)

   696 	{

   697 	if (!iScreen->IsValidScreenSizeMode(aMode))

   698 		OwnerPanic(EWservPanicScreenModeNumber);

   699 	TPixelsAndRotation sar;

   700 	iScreen->GetScreenSizeAndRotation(sar,aMode);

   701 	CWsClient::ReplyBuf(&sar, sizeof(sar));

   702 	}

   703 

   704 void DWsScreenDevice::GetScreenModeDisplayMode(const TInt aMode)

   705 	{

   706 	if (!iScreen->IsValidScreenSizeMode(aMode))

   707 		{

   708 		OwnerPanic(EWservPanicScreenModeNumber);

   709 		}

   710 	SetReply(STATIC_CAST(TInt,iScreen->DefaultDisplayMode(aMode)));

   711 	}

   712 

   713 void DWsScreenDevice::SetAppScreenMode(TInt aMode)

   714 	{

   715 	if (!iScreen->IsValidScreenSizeMode(aMode))

   716 		{

   717 		OwnerPanic(EWservPanicScreenModeNumber);

   718 		}

   719 	const TSizeMode& sizeMode=iScreen->ScreenSizeModeData(aMode);

   720 	TInt flags=0;

   721 	TRAP_IGNORE(flags = iScreen->ModeFlagsL(aMode));

   722 	if (flags & MWsScreenConfigList::EDynamic)

   723 		{

   724 		iAppScreenSizeInPixels = TSize(-1,-1);

   725 		iAppScreenSizeInTwips = TSize(-1,-1);

   726 		}

   727 	else

   728 		{

   729 		iAppScreenSizeInPixels=sizeMode.iScreenSize;

   730 		iAppScreenSizeInTwips=sizeMode.iScreenTwipsSize;

   731 		}

   732 	iAppMode=aMode;

   733 	iAppRotation=sizeMode.iRotation;

   734 	CWsWindowGroup::SetScreenDeviceValidStates(this);

   735 	}

   736 

   737 #define ROTATION_TO_FLAG(x) 1<<x

   738 

   739 void DWsScreenDevice::SetScreenDeviceValidStates(const DWsScreenDevice *aDevice)

   740 	{

   741 	TInt modes=iScreen->NumScreenSizeModes();

   742 	TInt mode;

   743 	for (mode=0;mode<modes;++mode)

   744 		{

   745 		TInt flags=0;

   746 		TRAPD(err,flags = iScreen->ModeFlagsL(mode));

   747 		if (err != KErrNone || flags&MWsScreenConfigList::EDynamic)

   748 			{

   749 			continue;

   750 			}

   751 		const TSizeMode& sizeMode=iScreen->ScreenSizeModeData(mode);

   752 		if (iAppScreenSizeInPixels==sizeMode.iScreenSize && ROTATION_TO_FLAG(iAppRotation)&sizeMode.iAlternativeRotations)

   753 			{

   754 			iAppMode=mode;

   755 			break;

   756 			}

   757 		}

   758 	CWsWindowGroup::SetScreenDeviceValidStates(aDevice);

   759 	}

   760 

   761 void DWsScreenDevice::NewOrientation(TInt aMode,CFbsBitGc::TGraphicsOrientation aRotation)

   762 	{

   763 	if (iAppMode==aMode)

   764 		iAppRotation=aRotation;

   765 	}

   766 

   767 void DWsScreenDevice::SetPaletteL()

   768 	{

   769 	MWsScreen* pOI=iScreen;

   770 	MWsPalette* paletteInterface = pOI->ObjectInterface<MWsPalette>();

   771 

   772 	if (paletteInterface)

   773 		{

   774 		const TInt size=iWsOwner->ClientMessage().GetDesLength(KRemoteBufferMessageSlot);

   775 		TInt numEntries=size/sizeof(TRgb);

   776 		CPalette* palette=CPalette::NewL(numEntries);

   777 		CleanupStack::PushL(palette);

   778 		TPtr8 paletteData(NULL,0);

   779 		palette->GetDataPtr(0,numEntries,paletteData);

   780 		iWsOwner->RemoteReadL(paletteData,0);

   781 		SetReply(paletteInterface->SetCustomPalette(palette));

   782 		CleanupStack::PopAndDestroy(palette);

   783 		}

   784 	else

   785 		SetReply(KErrNotSupported);

   786 	}

   787 

   788 void DWsScreenDevice::GetPalette(TInt aNumColors)

   789 	{

   790 	MWsScreen* pOI=iScreen;

   791 	MWsPalette* paletteInterface = pOI->ObjectInterface<MWsPalette>();

   792 

   793 	if (paletteInterface)

   794 		{

   795 		CPalette* palette = NULL;

   796 		TInt ret = paletteInterface->GetPalette(palette);

   797 

   798 		if (ret != KErrNone)

   799 			{

   800 			SetReply(ret);

   801 			return;

   802 			}

   803 

   804 		ret = palette->Entries();

   805 

   806 		if (ret != aNumColors)

   807 			{

   808 			delete palette;

   809 			SetReply(ret);

   810 			return;

   811 			}

   812 

   813 		TPtr8 paletteData(NULL,0);

   814 		palette->GetDataPtr(0,ret,paletteData);

   815 		CWsClient::ReplyBuf(paletteData);

   816 		SetReply(KErrNone);

   817 		delete palette;

   818 		}

   819 	else

   820 		SetReply(KErrNotSupported);

   821 	}

   822 

   823 TUint DWsScreenDevice::ClientDevicePointer()

   824 	{

   825 	return iClientScreenDevicePointer;	

   826 	}

   827 //Integer version means callers don't need exported panic enumeration

   828 void DWsScreenDevice::PanicCurrentClient(TInt aPanic)

   829 	{

   830 	PanicCurrentClient((TClientPanic)aPanic);

   831 	}

   832 

   833 //Allows render stage to initiate a client panic

   834 void DWsScreenDevice::PanicCurrentClient(TClientPanic aPanic)

   835 	{

   836 	CWsClient::PanicCurrentClient(aPanic);

   837 	}

   838 

   839 void DWsScreenDevice::SetReply(TInt aReply)

   840 	{

   841 	CWsObject::SetReply(aReply);

   842 	}

   843 

   844 void DWsScreenDevice::RedrawNowIfPending()

   845 	{

   846 	iScreen->RedrawNowIfPending();

   847 	}

   848 

   849 void DWsScreenDevice::ReplyBuf(const TAny* aSource, TInt aLength)

   850 	{

   851 	TPtrC8 src(reinterpret_cast<const TUint8*>(aSource),aLength);

   852 	CWsClient::ReplyBuf(src);

   853 	}

   854 

   855 void DWsScreenDevice::TestScreenCaptureL(const TAny* aMessage)

   856 	{

   857 	if (iTestScreenCapture == NULL)

   858 		{

   859 		// at this point we expect that Screen Capture Interface exists always

   860 		OwnerPanic(EWservPanicScreenCaptureInvalidRequest);

   861 		SetReply(KErrNotSupported);

   862 		}

   863 	iTestScreenCapture->TestScreenCaptureL(aMessage, *static_cast<MWsScreenDeviceUtils*>(this));

   864 	}
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