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SDL-1.2.14
[sdl_omap.git] / src / video / symbian / EKA2 / dsa_old.cpp
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e14743d1 1#include "dsa.h"
2#include "sdlepocapi.h"
3#include <cdsb.h>
4
5LOCAL_C TInt BytesPerPixel(TDisplayMode aMode)
6 {
7 return ((TDisplayModeUtils::NumDisplayModeBitsPerPixel(aMode) - 1) >> 3) + 1;
8 }
9
10
11////////////////////////////////////////////////////////////////////////////////////////////////
12
13NONSHARABLE_CLASS(CDsaA) : public CDsa
14 {
15 public:
16 CDsaA(RWsSession& aSession);
17 private:
18 ~CDsaA();
19 TUint8* LockSurface();
20 void UnlockHWSurfaceRequestComplete();
21 void UnlockHwSurface();
22 void CreateSurfaceL();
23 void Wipe(TInt aLength);
24 void RecreateL();
25 void Free();
26 TInt ExternalUpdate() {return 0;}
27 private:
28 CFbsBitmap* iBmp;
29 };
30
31
32CDsaA::CDsaA(RWsSession& aSession) : CDsa(aSession)
33 {
34 }
35
36void CDsaA::Free()
37 {
38 delete iBmp;
39 iBmp = NULL;
40 }
41
42CDsaA::~CDsaA()
43 {
44 __ASSERT_DEBUG(iBmp == NULL, PANIC(KErrNotReady));
45 }
46
47TUint8* CDsaA::LockSurface()
48 {
49 iBmp->LockHeap();
50 return reinterpret_cast<TUint8*>(iBmp->DataAddress());
51 }
52
53void CDsaA::UnlockHWSurfaceRequestComplete()
54 {
55 PANIC(KErrNotSupported);
56 }
57
58void CDsaA::UnlockHwSurface()
59 {
60 iBmp->UnlockHeap();
61 SetUpdating(EFalse);
62 Dsa().Gc()->BitBlt(HwRect().iTl, iBmp);
63 Dsa().ScreenDevice()->Update();
64 }
65
66void CDsaA::CreateSurfaceL()
67 {
68 delete iBmp;
69 iBmp = NULL;
70 iBmp = new (ELeave) CFbsBitmap();
71 User::LeaveIfError(iBmp->Create(HwRect().Size(), DisplayMode()));
72 }
73
74void CDsaA::Wipe(TInt aLength) //dont call in drawing
75 {
76 iBmp->LockHeap();
77 Mem::FillZ(iBmp->DataAddress(), aLength);
78 iBmp->UnlockHeap();
79 }
80
81void CDsaA::RecreateL()
82 {
83 }
84
85//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
86
87NONSHARABLE_CLASS(MDsbObs)
88 {
89 public:
90 virtual void SurfaceReady() = 0;
91 virtual CDirectScreenBitmap& Dsb() = 0;
92 };
93
94NONSHARABLE_CLASS(CDsbSurface) : public CActive
95 {
96 public:
97 CDsbSurface(MDsbObs& aDsb);
98 TUint8* Address();
99 void Complete();
100 ~CDsbSurface();
101 private:
102 void RunL();
103 void DoCancel();
104 private:
105 MDsbObs& iDsb;
106 TUint8* iAddress;
107 };
108
109CDsbSurface::CDsbSurface(MDsbObs& aDsb) : CActive(CActive::EPriorityHigh) , iDsb(aDsb)
110 {
111 CActiveScheduler::Add(this);
112 }
113
114CDsbSurface::~CDsbSurface()
115 {
116 Cancel();
117 }
118
119void CDsbSurface::Complete()
120 {
121 if(iAddress != NULL && !IsActive())
122 {
123 iAddress = NULL;
124 SetActive();
125 iDsb.Dsb().EndUpdate(iStatus);
126 }
127 }
128
129TUint8* CDsbSurface::Address()
130 {
131 if(iAddress == NULL && !IsActive())
132 {
133 TAcceleratedBitmapInfo info;
134 if(KErrNone == iDsb.Dsb().BeginUpdate(info))
135 iAddress = info.iAddress;
136 }
137 return iAddress;
138 }
139
140void CDsbSurface::RunL()
141 {
142 iDsb.SurfaceReady();
143 }
144
145void CDsbSurface::DoCancel()
146 {
147 //empty
148 }
149
150NONSHARABLE_CLASS(CDsaB) : public CDsa, public MDsbObs
151 {
152 public:
153 CDsaB(RWsSession& aSession);
154 private:
155 ~CDsaB();
156 TUint8* LockSurface();
157 void UnlockHWSurfaceRequestComplete();
158 void UnlockHwSurface();
159 void CreateSurfaceL();
160 void Wipe(TInt aLength);
161 void RecreateL();
162 void ConstructL(RWindow& aWindow, CWsScreenDevice& aDevice);
163 void Free();
164 CDirectScreenBitmap& Dsb();
165 void SurfaceReady();
166 TInt ExternalUpdate() {return 0;}
167 private:
168 CDsbSurface* iSurface1;
169 CDsbSurface* iSurface2;
170 CDirectScreenBitmap* iDsb;
171 };
172
173CDsaB::CDsaB(RWsSession& aSession) : CDsa(aSession)
174 {
175 }
176
177void CDsaB::Free()
178 {
179 }
180
181void CDsaB::UnlockHWSurfaceRequestComplete()
182 {
183 iSurface1->Complete();
184 iSurface2->Complete();
185 }
186
187void CDsaB::CreateSurfaceL()
188 {
189 }
190
191void CDsaB::Wipe(TInt aLength) //dont call in drawing
192 {
193 TUint8* addr = LockSurface();
194 if(addr != NULL)
195 {
196 Mem::FillZ(addr, aLength);
197 UnlockHwSurface();
198 }
199 }
200
201void CDsaB::UnlockHwSurface()
202 {
203 EpocSdlEnv::Request(CDsa::ERequestUpdate);
204 }
205
206TUint8* CDsaB::LockSurface()
207 {
208 TUint8* addr = iSurface1->Address();
209 if(addr == NULL)
210 addr = iSurface2->Address();
211 SetUpdating(addr == NULL);
212 return addr;
213 }
214
215void CDsaB::SurfaceReady()
216 {
217 SetUpdating(EFalse);
218 }
219
220CDirectScreenBitmap& CDsaB::Dsb()
221 {
222 return *iDsb;
223 }
224
225void CDsaB::ConstructL(RWindow& aWindow, CWsScreenDevice& aDevice)
226 {
227 if(iDsb == NULL)
228 iDsb = CDirectScreenBitmap::NewL();
229 CDsa::ConstructL(aWindow, aDevice);
230 iSurface1 = new (ELeave) CDsbSurface(*this);
231 iSurface2 = new (ELeave) CDsbSurface(*this);
232 }
233
234CDsaB::~CDsaB()
235 {
236 delete iSurface1;
237 delete iSurface2;
238 delete iDsb;
239 }
240
241void CDsaB::RecreateL()
242 {
243 iDsb->Close();
244 iDsb->Create(HwRect(), CDirectScreenBitmap::EDoubleBuffer);
245 }
246
247/////////////////////////////////////////////////////////////////////////////////////////////////////
248
249
250TSize CDsa::WindowSize() const
251 {
252 TSize size = HwRect().Size();
253 if(iStateFlags & EOrientation90)
254 {
255 const TInt tmp = size.iWidth;
256 size.iWidth = size.iHeight;
257 size.iHeight = tmp;
258 }
259 return size;
260 }
261
262void CDsa::SetSuspend()
263 {
264 iStateFlags |= ESdlThreadSuspend;
265 }
266
267void CDsa::ReleaseStop()
268 {
269 iStateFlags &= ~ESdlThreadExplicitStop;
270 }
271
272
273TBool CDsa::Stopped() const
274 {
275 return (iStateFlags & ESdlThreadExplicitStop);
276 }
277
278void CDsa::SetOrientation(CSDL::TOrientationMode aOrientation)
279 {
280 TInt flags = 0;
281 switch(aOrientation)
282 {
283 case CSDL::EOrientation90:
284 flags = EOrientation90;
285 break;
286 case CSDL::EOrientation180:
287 flags = EOrientation180;
288 break;
289 case CSDL::EOrientation270:
290 flags = EOrientation90 | EOrientation180;
291 break;
292 case CSDL::EOrientation0:
293 flags = 0;
294 break;
295 }
296 if(flags != (iStateFlags & EOrientationFlags))
297 {
298 iStateFlags |= EOrientationChanged;
299 iNewFlags = flags; //cannot be set during drawing...
300 }
301 }
302
303CDsa::~CDsa()
304 {
305 if(iDsa != NULL)
306 {
307 iDsa->Cancel();
308 }
309 delete iDsa;
310 User::Free(iLut256);
311 }
312
313void CDsa::ConstructL(RWindow& aWindow, CWsScreenDevice& aDevice)
314 {
315 if(iDsa != NULL)
316 {
317 iDsa->Cancel();
318 delete iDsa;
319 iDsa = NULL;
320 }
321
322
323 iDsa = CDirectScreenAccess::NewL(
324 iSession,
325 aDevice,
326 aWindow,
327 *this);
328
329 if(iLut256 == NULL)
330 iLut256 = (TUint32*) User::AllocL(256 * sizeof(TUint32));
331 iTargetMode = aWindow.DisplayMode();
332 iTargetBpp = BytesPerPixel(DisplayMode());
333 iTargetRect = TRect(aWindow.Position(), aWindow.Size());
334 RestartL();
335 }
336
337void CDsa::LockPalette(TBool aLock)
338 {
339 if(aLock)
340 iStateFlags |= EPaletteLocked;
341 else
342 iStateFlags &= ~EPaletteLocked;
343 }
344TInt CDsa::SetPalette(TInt aFirst, TInt aCount, TUint32* aPalette)
345 {
346 if(iLut256 == NULL)
347 return KErrNotFound;
348 const TInt count = aCount - aFirst;
349 if(count > 256)
350 return KErrArgument;
351 if(iStateFlags & EPaletteLocked)
352 return KErrNone;
353 for(TInt i = aFirst; i < count; i++) //not so busy here:-)
354 {
355 iLut256[i] = aPalette[i];
356 }
357 return KErrNone;
358 }
359
360
361
362
363void CDsa::RestartL()
364 {
365 //const TBool active = iDsa->IsActive();
366
367 //if(!active)
368 iDsa->StartL();
369
370 RRegion* r = iDsa->DrawingRegion();
371 iDsa->Gc()->SetClippingRegion(r);
372 TRect rect = r->BoundingRect();
373
374 if(rect.IsEmpty())
375 {
376 return;
377 }
378
379 iScreenRect = rect; //to ensure properly set, albeit may not(?) match to value SDL has - therefore may has to clip
380
381 RecreateL();
382
383 iStateFlags |= ERunning;
384// iScanLineWidth = iTargetBpp * HwRect().Width();
385 ReleaseStop();
386 if(iStateFlags & ESdlThreadSuspend)
387 {
388 EpocSdlEnv::Resume();
389 iStateFlags &= ~ ESdlThreadSuspend;
390 }
391 }
392
393CDsa::CDsa(RWsSession& aSession) :
394 iSession(aSession),
395 iStateFlags(0)
396 {
397// CActiveScheduler::Add(this);
398 iCFTable[0] = CopyMem;
399 iCFTable[1] = CopyMemFlipReversed;
400 iCFTable[2] = CopyMemReversed;
401 iCFTable[3] = CopyMemFlip;
402
403 iCFTable[4] = Copy256;
404 iCFTable[5] = Copy256FlipReversed;
405 iCFTable[6] = Copy256Reversed;
406 iCFTable[7] = Copy256Flip;
407
408
409 iCFTable[8] = CopySlow;
410 iCFTable[9] = CopySlowFlipReversed;
411 iCFTable[10] = CopySlowReversed;
412 iCFTable[11] = CopySlowFlip;
413 }
414
415RWsSession& CDsa::Session()
416 {
417 return iSession;
418 }
419
420
421
422TUint8* CDsa::LockHwSurface()
423 {
424 if((iStateFlags & EUpdating) == 0) //else frame is skipped
425 {
426 return LockSurface();
427 }
428 return NULL;
429 }
430
431/*
432void CDsa::RunL()
433 {
434 iStateFlags &= ~EUpdating;
435 }
436
437
438void CDsa::DoCancel()
439 {
440 iStateFlags &= ~EUpdating;
441 //nothing can do, just wait?
442 }
443*/
444
445TInt CDsa::AllocSurface(TBool aHwSurface, const TSize& aSize, TDisplayMode aMode)
446 {
447 if(aHwSurface && aMode != DisplayMode())
448 return KErrArgument;
449
450 iSourceMode = aMode;
451
452 iSourceBpp = BytesPerPixel(aMode);
453
454 const TSize size = WindowSize();
455 if(aSize.iWidth > size.iWidth)
456 return KErrTooBig;
457 if(aSize.iHeight > size.iHeight)
458 return KErrTooBig;
459
460 TRAPD(err, CreateSurfaceL());
461 if(err != KErrNone)
462 return err;
463
464
465 SetCopyFunction();
466
467 EpocSdlEnv::ObserverEvent(MSDLObserver::EEventWindowReserved);
468
469 return KErrNone;
470 }
471
472
473/*
474void SaveBmp(const TDesC& aName, const TAny* aData, TInt aLength, const TSize& aSz, TDisplayMode aMode)
475 {
476 CFbsBitmap* s = new CFbsBitmap();
477 s->Create(aSz, aMode);
478 s->LockHeap();
479 TUint32* addr = s->DataAddress();
480 Mem::Copy(addr, aData, aLength);
481 s->UnlockHeap();
482 s->Save(aName);
483 s->Reset();
484 delete s;
485 }
486
487void SaveBmp(const TDesC& aName, const TUint32* aData, const TSize& aSz)
488 {
489 CFbsBitmap* s = new CFbsBitmap();
490 s->Create(aSz, EColor64K);
491 TBitmapUtil bmp(s);
492 bmp.Begin(TPoint(0, 0));
493 for(TInt j = 0; j < aSz.iHeight; j++)
494 {
495 bmp.SetPos(TPoint(0, j));
496 for(TInt i = 0; i < aSz.iWidth; i++)
497 {
498 bmp.SetPixel(*aData);
499 aData++;
500 bmp.IncXPos();
501 }
502 }
503 bmp.End();
504 s->Save(aName);
505 s->Reset();
506 delete s;
507 }
508
509TBuf<16> FooName(TInt aFoo)
510 {
511 TBuf<16> b;
512 b.Format(_L("C:\\pic%d.mbm"), aFoo);
513 return b;
514 }
515*/
516void CDsa::ClipCopy(TUint8* aTarget, const TUint8* aSource, const TRect& aRect, const TRect& aTargetPos) const
517 {
518 TUint8* target = aTarget;
519 const TUint8* source = aSource;
520 const TInt lineWidth = aRect.Width();
521 source += iSourceBpp * (aRect.iTl.iY * lineWidth);
522 TInt sourceStartOffset = iSourceBpp * aRect.iTl.iX;
523 source += sourceStartOffset;
524 target += iTargetBpp * ((aTargetPos.iTl.iY + aRect.iTl.iY ) * lineWidth);
525 TInt targetStartOffset = iTargetBpp * (aRect.iTl.iX + aTargetPos.iTl.iX);
526 target += targetStartOffset;
527 TUint32* targetPtr = reinterpret_cast<TUint32*>(target);
528 const TInt targetWidth = HwRect().Size().iWidth;
529 const TInt height = aRect.Height();
530
531 TInt lineMove = iStateFlags & EOrientation90 ? 1 : lineWidth;
532
533 if(iStateFlags & EOrientation180)
534 {
535
536 targetPtr += targetWidth * (height - 1);
537
538 for(TInt i = 0; i < height; i++) //source is always smaller
539 {
540 iCopyFunction(*this, targetPtr, source, lineWidth, height);
541 source += lineMove;
542 targetPtr -= targetWidth;
543 }
544 }
545 else
546 {
547
548
549 for(TInt i = 0; i < height; i++) //source is always smaller
550 {
551 iCopyFunction(*this, targetPtr, source, lineWidth, height);
552 source += lineMove;
553 targetPtr += targetWidth;
554 }
555 }
556
557 }
558
559
560
561
562void CDsa::Wipe() //dont call in drawing
563 {
564 if(IsDsaAvailable())
565 Wipe(iTargetBpp * iScreenRect.Width() * iScreenRect.Height());
566 }
567
568void CDsa::SetCopyFunction()
569 {
570 //calculate offset to correct function in iCFTable according to given parameters
571 TInt function = 0;
572 const TInt KCopyFunctions = 4;
573 const TInt KOffsetToNative = 0;
574 const TInt KOffsetTo256 = KOffsetToNative + KCopyFunctions;
575 const TInt KOffsetToOtherModes = KOffsetTo256 + KCopyFunctions;
576 const TInt KOffsetTo90Functions = 1;
577 const TInt KOffsetTo180Functions = 2;
578
579 if(iSourceMode == DisplayMode())
580 function = KOffsetToNative; //0
581 else if(iSourceMode == EColor256)
582 function = KOffsetTo256; //4
583 else
584 function = KOffsetToOtherModes; //8
585
586 if(iStateFlags & EOrientation90)
587 function += KOffsetTo90Functions; // + 1
588 if(iStateFlags & EOrientation180)
589 function += KOffsetTo180Functions; //+ 2
590
591 iCopyFunction = iCFTable[function];
592
593 Wipe();
594 }
595
596inline void Rotate(TRect& aRect)
597 {
598 const TInt dx = aRect.iBr.iX - aRect.iTl.iX;
599 const TInt dy = aRect.iBr.iY - aRect.iTl.iY;
600
601 aRect.iBr.iX = aRect.iTl.iX + dy;
602 aRect.iBr.iY = aRect.iTl.iY + dx;
603
604 const TInt tmp = aRect.iTl.iX;
605 aRect.iTl.iX = aRect.iTl.iY;
606 aRect.iTl.iY = tmp;
607 }
608
609/*
610int bar = 0;
611*/
612TBool CDsa::AddUpdateRect(const TUint8* aBits, const TRect& aUpdateRect, const TRect& aRect)
613 {
614
615 if(iStateFlags & EOrientationChanged)
616 {
617 iStateFlags &= ~EOrientationFlags;
618 iStateFlags |= iNewFlags;
619 SetCopyFunction();
620 iStateFlags &= ~EOrientationChanged;
621 EpocSdlEnv::WaitDeviceChange();
622 return EFalse; //skip this frame as data is may be changed
623 }
624
625 if(iTargetAddr == NULL)
626 {
627 iTargetAddr = LockHwSurface();
628 }
629 TUint8* target = iTargetAddr;
630 if(target == NULL)
631 return EFalse;
632
633
634 TRect targetRect = HwRect();
635 TRect sourceRect = aRect;
636 TRect updateRect = aUpdateRect;
637
638 if(iStateFlags & EOrientation90)
639 {
640 Rotate(sourceRect);
641 Rotate(updateRect);
642 }
643
644 if(iSourceMode != DisplayMode() || targetRect != sourceRect || targetRect != updateRect || ((iStateFlags & EOrientationFlags) != 0))
645 {
646 sourceRect.Intersection(targetRect); //so source always smaller or equal than target
647 updateRect.Intersection(targetRect);
648 ClipCopy(target, aBits, updateRect, sourceRect);
649 }
650 else
651 {
652 const TInt byteCount = aRect.Width() * aRect.Height() * iSourceBpp; //this could be stored
653 Mem::Copy(target, aBits, byteCount);
654 }
655
656 return ETrue;
657 }
658
659CDsa* CDsa::CreateL(RWsSession& aSession)
660 {
661 if(EpocSdlEnv::Flags(CSDL::EDrawModeDSB))
662 {
663 TInt flags = CDirectScreenBitmap::ENone;
664 if(EpocSdlEnv::Flags(CSDL::EDrawModeDSBDoubleBuffer))
665 flags |= CDirectScreenBitmap::EDoubleBuffer;
666 if(EpocSdlEnv::Flags(CSDL::EDrawModeDSBIncrentalUpdate))
667 flags |= CDirectScreenBitmap::EIncrementalUpdate;
668 return new (ELeave) CDsaB(aSession);
669 }
670 else
671 return new (ELeave) CDsaA(aSession);
672 }
673
674void CDsa::CreateZoomerL(const TSize& aSize)
675 {
676 iSwSize = aSize;
677 iStateFlags |= EResizeRequest;
678 CreateSurfaceL();
679 SetTargetRect();
680 }
681
682TPoint CDsa::WindowCoordinates(const TPoint& aPoint) const
683 {
684 TPoint pos = aPoint - iScreenRect.iTl;
685 const TSize asz = iScreenRect.Size();
686 if(iStateFlags & EOrientation180)
687 {
688 pos.iX = asz.iWidth - pos.iX;
689 pos.iY = asz.iHeight - pos.iY;
690 }
691 if(iStateFlags & EOrientation90)
692 {
693 pos.iX = aPoint.iY;
694 pos.iY = aPoint.iX;
695 }
696 pos.iX <<= 16;
697 pos.iY <<= 16;
698 pos.iX /= asz.iWidth;
699 pos.iY /= asz.iHeight;
700 pos.iX *= iSwSize.iWidth;
701 pos.iY *= iSwSize.iHeight;
702 pos.iX >>= 16;
703 pos.iY >>= 16;
704 return pos;
705 }
706
707void CDsa::SetTargetRect()
708 {
709 iTargetRect = iScreenRect;
710 if(iStateFlags & EResizeRequest && EpocSdlEnv::Flags(CSDL::EAllowImageResizeKeepRatio))
711 {
712 const TSize asz = iScreenRect.Size();
713 const TSize sz = iSwSize;
714
715 TRect rect;
716
717 const TInt dh = (sz.iHeight << 16) / sz.iWidth;
718
719 if((asz.iWidth * dh ) >> 16 <= asz.iHeight)
720 {
721 rect.SetRect(TPoint(0, 0), TSize(asz.iWidth, (asz.iWidth * dh) >> 16));
722 }
723 else
724 {
725 const TInt dw = (sz.iWidth << 16) / sz.iHeight;
726 rect.SetRect(TPoint(0, 0), TSize((asz.iHeight * dw) >> 16, asz.iHeight));
727 }
728 rect.Move((asz.iWidth - rect.Size().iWidth) >> 1, (asz.iHeight - rect.Size().iHeight) >> 1);
729
730 iTargetRect = rect;
731 iTargetRect.Move(iScreenRect.iTl);
732
733 }
734 if(!(iStateFlags & EResizeRequest))
735 iSwSize = iScreenRect.Size();
736// iScanLineWidth = /*iTargetBpp **/ SwSize().iWidth;
737 }
738
739void CDsa::RecreateL()
740 {
741 }
742
743void CDsa::Free()
744 {
745 }
746
747void CDsa::UpdateSwSurface()
748 {
749 iTargetAddr = NULL;
750 UnlockHwSurface(); //could be faster if does not use AO, but only check status before redraw, then no context switch needed
751 }
752
753void CDsa::SetBlitter(MBlitter* aBlitter)
754 {
755 iBlitter = aBlitter;
756 }
757
758void CDsa::DrawOverlays()
759 {
760 const TInt last = iOverlays.Count() - 1;
761 for(TInt i = last; i >= 0 ; i--)
762 iOverlays[i].iOverlay->Draw(*iDsa->Gc(), HwRect(), SwSize());
763 }
764
765TInt CDsa::AppendOverlay(MOverlay& aOverlay, TInt aPriority)
766 {
767 TInt i;
768 for(i = 0; i < iOverlays.Count() && iOverlays[i].iPriority < aPriority; i++)
769 {}
770 const TOverlay overlay = {&aOverlay, aPriority};
771 return iOverlays.Insert(overlay, i);
772 }
773
774TInt CDsa::RemoveOverlay(MOverlay& aOverlay)
775 {
776 for(TInt i = 0; i < iOverlays.Count(); i++)
777 {
778 if(iOverlays[i].iOverlay == &aOverlay)
779 {
780 iOverlays.Remove(i);
781 return KErrNone;
782 }
783 }
784 return KErrNotFound;
785 }
786
787TInt CDsa::RedrawRequest()
788 {
789 if(!(iStateFlags & (EUpdating) && (iStateFlags & ERunning)))
790 {
791 return ExternalUpdate();
792 }
793 return KErrNotReady;
794 }
795
796
797void CDsa::Resume()
798 {
799 if(Stopped())
800 Restart(RDirectScreenAccess::ETerminateRegion);
801 }
802
803void CDsa::DoStop()
804 {
805 if(IsDsaAvailable())
806 iStateFlags |= ESdlThreadExplicitStop;
807 Stop();
808 }
809
810void CDsa::Stop()
811 {
812 iStateFlags &= ~ERunning;
813// Cancel(); //can be called only from main!
814 iDsa->Cancel();
815 }
816
817void CDsa::AbortNow(RDirectScreenAccess::TTerminationReasons /*aReason*/)
818 {
819// iStateFlags |= EChangeNotify;
820 Stop();
821 }
822
823void CDsa::Restart(RDirectScreenAccess::TTerminationReasons aReason)
824 {
825 if(aReason == RDirectScreenAccess::ETerminateRegion) //auto restart
826 {
827 TRAPD(err, RestartL());
828 PANIC_IF_ERROR(err);
829 }
830 }
831/*)
832TBool CDsa::ChangeTrigger()
833 {
834 const TBool change = iStateFlags & EChangeNotify;
835 iStateFlags &= ~EChangeNotify;
836 return change;
837 }
838*/
839/////////////////////////////////////////////////////////////////////////////////////////////////////////////////
840
841void CDsa::Copy256(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt)
842 {
843 TUint32* target = aTarget;
844 const TUint32* endt = target + aBytes;
845 const TUint8* source = aSource;
846 while(target < endt)
847 {
848 *target++ = aDsa.iLut256[*source++];
849 }
850 }
851
852void CDsa::Copy256Reversed(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt)
853 {
854 const TUint32* target = aTarget;
855 TUint32* endt = aTarget + aBytes;
856 const TUint8* source = aSource;
857 while(target < endt)
858 {
859 *(--endt) = aDsa.iLut256[*source++];
860 }
861 }
862
863void CDsa::Copy256Flip(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt aLineLen)
864 {
865 TUint32* target = aTarget;
866 const TUint32* endt = target + aBytes;
867 const TUint8* column = aSource;
868
869 while(target < endt)
870 {
871 *target++ = aDsa.iLut256[*column];
872 column += aLineLen;
873 }
874 }
875
876void CDsa::Copy256FlipReversed(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt aLineLen)
877 {
878 const TUint32* target = aTarget;
879 TUint32* endt = aTarget + aBytes;
880 const TUint8* column = aSource;
881
882 while(target < endt)
883 {
884 *(--endt) = aDsa.iLut256[*column];
885 column += aLineLen;
886 }
887 }
888
889void CDsa::CopyMem(const CDsa& /*aDsa*/, TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt)
890 {
891 Mem::Copy(aTarget, aSource, aBytes);
892 }
893
894void CDsa::CopyMemFlip(const CDsa& /*aDsa*/, TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt aLineLen)
895 {
896 TUint32* target = aTarget;
897 const TUint32* endt = target + aBytes;
898 const TUint32* column = reinterpret_cast<const TUint32*>(aSource);
899
900 while(target < endt)
901 {
902 *target++ = *column;
903 column += aLineLen;
904 }
905 }
906
907void CDsa::CopyMemReversed(const CDsa& /*aDsa*/, TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt)
908 {
909 const TUint32* target = aTarget;
910 TUint32* endt = aTarget + aBytes;
911 const TUint32* source = reinterpret_cast<const TUint32*>(aSource);
912 while(target < endt)
913 {
914 *(--endt) = *source++;
915 }
916 }
917
918
919void CDsa::CopyMemFlipReversed(const CDsa& /*aDsa*/, TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt aLineLen)
920 {
921 const TUint32* target = aTarget;
922 TUint32* endt = aTarget + aBytes;
923 const TUint32* column = reinterpret_cast<const TUint32*>(aSource);
924
925 while(target < endt)
926 {
927 *(--endt) = *column;
928 column += aLineLen;
929 }
930 }
931
932
933typedef TRgb (*TRgbFunc) (TInt aValue);
934
935LOCAL_C TRgb rgb16MA(TInt aValue)
936 {
937 return TRgb::Color16MA(aValue);
938 }
939
940NONSHARABLE_CLASS(MRgbCopy)
941 {
942 public:
943 virtual void Copy(TUint32* aTarget, const TUint8* aSource, TInt aBytes, TBool aReversed) = 0;
944 virtual void FlipCopy(TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt aLineLen, TBool aReversed) = 0;
945 };
946template <class T>
947NONSHARABLE_CLASS(TRgbCopy) : public MRgbCopy
948 {
949 public:
950 TRgbCopy(TDisplayMode aMode);
951 void* operator new(TUint aBytes, TAny* aMem);
952 void Copy(TUint32* aTarget, const TUint8* aSource, TInt aBytes, TBool aReversed);
953 void FlipCopy(TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt aLineLen, TBool aReversed);
954 private:
955 TRgbFunc iFunc;
956 };
957
958template <class T>
959void* TRgbCopy<T>::operator new(TUint /*aBytes*/, TAny* aMem)
960 {
961 return aMem;
962 }
963
964template <class T>
965TRgbCopy<T>::TRgbCopy(TDisplayMode aMode)
966 {
967 switch(aMode)
968 {
969 case EGray256 : iFunc = TRgb::Gray256; break;
970 case EColor256 : iFunc = TRgb::Color256; break;
971 case EColor4K : iFunc = TRgb::Color4K; break;
972 case EColor64K : iFunc = TRgb::Color64K; break;
973 case EColor16M : iFunc = TRgb::Color16M; break;
974 case EColor16MU : iFunc = TRgb::Color16MU; break;
975 case EColor16MA : iFunc = rgb16MA; break;
976 default:
977 PANIC(KErrNotSupported);
978 }
979 }
980
981template <class T>
982void TRgbCopy<T>::Copy(TUint32* aTarget, const TUint8* aSource, TInt aBytes, TBool aReversed)
983 {
984 const T* source = reinterpret_cast<const T*>(aSource);
985 TUint32* target = aTarget;
986 TUint32* endt = target + aBytes;
987
988 if(aReversed)
989 {
990 while(target < endt)
991 {
992 TUint32 value = *source++;
993 *(--endt) = iFunc(value).Value();
994 }
995 }
996 else
997 {
998 while(target < endt)
999 {
1000 TUint32 value = *source++;
1001 *target++ = iFunc(value).Value();
1002 }
1003 }
1004 }
1005
1006template <class T>
1007void TRgbCopy<T>::FlipCopy(TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt aLineLen, TBool aReversed)
1008 {
1009 const T* column = reinterpret_cast<const T*>(aSource);
1010 TUint32* target = aTarget;
1011 TUint32* endt = target + aBytes;
1012
1013 if(aReversed)
1014 {
1015 while(target < endt)
1016 {
1017 *(--endt) = iFunc(*column).Value();
1018 column += aLineLen;
1019 }
1020 }
1021 else
1022 {
1023 while(target < endt)
1024 {
1025 *target++ = iFunc(*column).Value();
1026 column += aLineLen;
1027 }
1028 }
1029 }
1030
1031
1032typedef TUint64 TStackMem;
1033
1034LOCAL_C MRgbCopy* GetCopy(TAny* mem, TDisplayMode aMode)
1035 {
1036 if(aMode == EColor256 || aMode == EGray256)
1037 {
1038 return new (mem) TRgbCopy<TUint8>(aMode);
1039 }
1040 if(aMode == EColor4K || aMode == EColor64K)
1041 {
1042 return new (mem) TRgbCopy<TUint16>(aMode);
1043 }
1044 if(aMode == EColor16M || aMode == EColor16MU || aMode == EColor16MA)
1045 {
1046 return new (mem) TRgbCopy<TUint32>(aMode);
1047 }
1048 PANIC(KErrNotSupported);
1049 return NULL;
1050 }
1051
1052
1053void CDsa::CopySlowFlipReversed(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt aLineLen)
1054 {
1055 TStackMem mem = 0;
1056 GetCopy(&mem, aDsa.iSourceMode)->FlipCopy(aTarget, aSource, aBytes, aLineLen, ETrue);
1057 }
1058
1059void CDsa::CopySlowFlip(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt aLineLen)
1060 {
1061 TStackMem mem = 0;
1062 GetCopy(&mem, aDsa.iSourceMode)->FlipCopy(aTarget, aSource, aBytes, aLineLen, EFalse);
1063 }
1064
1065void CDsa::CopySlow(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt)
1066 {
1067 TStackMem mem = 0;
1068 GetCopy(&mem, aDsa.iSourceMode)->Copy(aTarget, aSource, aBytes, EFalse);
1069 }
1070
1071void CDsa::CopySlowReversed(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt)
1072 {
1073 TStackMem mem = 0;
1074 GetCopy(&mem, aDsa.iSourceMode)->Copy(aTarget, aSource, aBytes, ETrue);
1075 }
SDL with some OMAP hardware support