source: trunk/src/openvg/qpixmapdata_vg.cpp@ 687

Last change on this file since 687 was 651, checked in by Dmitry A. Kuminov, 16 years ago

trunk: Merged in qt 4.6.2 sources.
  • Property svn:eol-style set to native
File size: 20.2 KB
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1/****************************************************************************
2**
3** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation (qt-info@nokia.com)
6**
7** This file is part of the QtOpenVG module of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
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23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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28** GNU General Public License Usage
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31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
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35**
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39**
40****************************************************************************/
41
42#include "qpixmapdata_vg_p.h"
43#include "qpaintengine_vg_p.h"
44#include <QtGui/private/qdrawhelper_p.h>
45#include "qvg_p.h"
46#include "qvgimagepool_p.h"
47
48#ifdef QT_SYMBIAN_SUPPORTS_SGIMAGE
49#include <private/qt_s60_p.h>
50#include <fbs.h>
51#include <graphics/sgimage.h>
52typedef EGLImageKHR (*pfnEglCreateImageKHR)(EGLDisplay, EGLContext, EGLenum, EGLClientBuffer, EGLint*);
53typedef EGLBoolean (*pfnEglDestroyImageKHR)(EGLDisplay, EGLImageKHR);
54typedef VGImage (*pfnVgCreateEGLImageTargetKHR)(VGeglImageKHR);
55#endif // QT_SYMBIAN_SUPPORTS_SGIMAGE
56
57QT_BEGIN_NAMESPACE
58
59static int qt_vg_pixmap_serial = 0;
60
61QVGPixmapData::QVGPixmapData(PixelType type)
62 : QPixmapData(type, OpenVGClass)
63{
64 Q_ASSERT(type == QPixmapData::PixmapType);
65 vgImage = VG_INVALID_HANDLE;
66 vgImageOpacity = VG_INVALID_HANDLE;
67 cachedOpacity = 1.0f;
68 recreate = true;
69 inImagePool = false;
70 inLRU = false;
71#if !defined(QT_NO_EGL)
72 context = 0;
73 qt_vg_register_pixmap(this);
74#endif
75 setSerialNumber(++qt_vg_pixmap_serial);
76}
77
78QVGPixmapData::~QVGPixmapData()
79{
80 destroyImageAndContext();
81#if !defined(QT_NO_EGL)
82 qt_vg_unregister_pixmap(this);
83#endif
84}
85
86void QVGPixmapData::destroyImages()
87{
88 if (inImagePool) {
89 QVGImagePool *pool = QVGImagePool::instance();
90 if (vgImage != VG_INVALID_HANDLE)
91 pool->releaseImage(this, vgImage);
92 if (vgImageOpacity != VG_INVALID_HANDLE)
93 pool->releaseImage(this, vgImageOpacity);
94 } else {
95 if (vgImage != VG_INVALID_HANDLE)
96 vgDestroyImage(vgImage);
97 if (vgImageOpacity != VG_INVALID_HANDLE)
98 vgDestroyImage(vgImageOpacity);
99 }
100 vgImage = VG_INVALID_HANDLE;
101 vgImageOpacity = VG_INVALID_HANDLE;
102 inImagePool = false;
103}
104
105void QVGPixmapData::destroyImageAndContext()
106{
107 if (vgImage != VG_INVALID_HANDLE) {
108 // We need to have a context current to destroy the image.
109#if !defined(QT_NO_EGL)
110 if (context->isCurrent()) {
111 destroyImages();
112 } else {
113 // We don't currently have a widget surface active, but we
114 // need a surface to make the context current. So use the
115 // shared pbuffer surface instead.
116 context->makeCurrent(qt_vg_shared_surface());
117 destroyImages();
118 context->lazyDoneCurrent();
119 }
120#else
121 destroyImages();
122#endif
123 }
124#if !defined(QT_NO_EGL)
125 if (context) {
126 qt_vg_destroy_context(context, QInternal::Pixmap);
127 context = 0;
128 }
129#endif
130 recreate = true;
131}
132
133QPixmapData *QVGPixmapData::createCompatiblePixmapData() const
134{
135 return new QVGPixmapData(pixelType());
136}
137
138bool QVGPixmapData::isValid() const
139{
140 return (w > 0 && h > 0);
141}
142
143void QVGPixmapData::resize(int wid, int ht)
144{
145 if (w == wid && h == ht)
146 return;
147
148 w = wid;
149 h = ht;
150 d = 32; // We always use ARGB_Premultiplied for VG pixmaps.
151 is_null = (w <= 0 || h <= 0);
152 source = QImage();
153 recreate = true;
154
155 setSerialNumber(++qt_vg_pixmap_serial);
156}
157
158void QVGPixmapData::fromImage
159 (const QImage &image, Qt::ImageConversionFlags flags)
160{
161 if (image.size() == QSize(w, h))
162 setSerialNumber(++qt_vg_pixmap_serial);
163 else
164 resize(image.width(), image.height());
165 source = image.convertToFormat(sourceFormat(), flags);
166 recreate = true;
167}
168
169void QVGPixmapData::fill(const QColor &color)
170{
171 if (!isValid())
172 return;
173
174 if (source.isNull())
175 source = QImage(w, h, sourceFormat());
176
177 if (source.depth() == 1) {
178 // Pick the best approximate color in the image's colortable.
179 int gray = qGray(color.rgba());
180 if (qAbs(qGray(source.color(0)) - gray) < qAbs(qGray(source.color(1)) - gray))
181 source.fill(0);
182 else
183 source.fill(1);
184 } else {
185 source.fill(PREMUL(color.rgba()));
186 }
187
188 // Re-upload the image to VG the next time toVGImage() is called.
189 recreate = true;
190}
191
192bool QVGPixmapData::hasAlphaChannel() const
193{
194 if (!source.isNull())
195 return source.hasAlphaChannel();
196 else
197 return isValid();
198}
199
200void QVGPixmapData::setAlphaChannel(const QPixmap &alphaChannel)
201{
202 forceToImage();
203 source.setAlphaChannel(alphaChannel.toImage());
204}
205
206QImage QVGPixmapData::toImage() const
207{
208 if (!isValid())
209 return QImage();
210
211 if (source.isNull()) {
212 source = QImage(w, h, sourceFormat());
213 recreate = true;
214 }
215
216 return source;
217}
218
219QImage *QVGPixmapData::buffer()
220{
221 forceToImage();
222 return &source;
223}
224
225QPaintEngine* QVGPixmapData::paintEngine() const
226{
227 // If the application wants to paint into the QPixmap, we first
228 // force it to QImage format and then paint into that.
229 // This is simpler than juggling multiple VG contexts.
230 const_cast<QVGPixmapData *>(this)->forceToImage();
231 return source.paintEngine();
232}
233
234// This function works around QImage::bits() making a deep copy if the
235// QImage is not const. We force it to be const and then get the bits.
236// XXX: Should add a QImage::constBits() in the future to replace this.
237const uchar *qt_vg_imageBits(const QImage& image)
238{
239 return image.bits();
240}
241
242VGImage QVGPixmapData::toVGImage()
243{
244 if (!isValid())
245 return VG_INVALID_HANDLE;
246
247#if !defined(QT_NO_EGL)
248 // Increase the reference count on the shared context.
249 if (!context)
250 context = qt_vg_create_context(0, QInternal::Pixmap);
251#endif
252
253 if (recreate && prevSize != QSize(w, h))
254 destroyImages();
255 else if (recreate)
256 cachedOpacity = -1.0f; // Force opacity image to be refreshed later.
257
258 if (vgImage == VG_INVALID_HANDLE) {
259 vgImage = QVGImagePool::instance()->createImageForPixmap
260 (VG_sARGB_8888_PRE, w, h, VG_IMAGE_QUALITY_FASTER, this);
261
262 // Bail out if we run out of GPU memory - try again next time.
263 if (vgImage == VG_INVALID_HANDLE)
264 return VG_INVALID_HANDLE;
265
266 inImagePool = true;
267 } else if (inImagePool) {
268 QVGImagePool::instance()->useImage(this);
269 }
270
271 if (!source.isNull() && recreate) {
272 vgImageSubData
273 (vgImage,
274 qt_vg_imageBits(source), source.bytesPerLine(),
275 VG_sARGB_8888_PRE, 0, 0, w, h);
276 }
277
278 recreate = false;
279 prevSize = QSize(w, h);
280
281 return vgImage;
282}
283
284VGImage QVGPixmapData::toVGImage(qreal opacity)
285{
286#if !defined(QT_SHIVAVG)
287 // Force the primary VG image to be recreated if necessary.
288 if (toVGImage() == VG_INVALID_HANDLE)
289 return VG_INVALID_HANDLE;
290
291 if (opacity == 1.0f)
292 return vgImage;
293
294 // Create an alternative image for the selected opacity.
295 if (vgImageOpacity == VG_INVALID_HANDLE || cachedOpacity != opacity) {
296 if (vgImageOpacity == VG_INVALID_HANDLE) {
297 if (inImagePool) {
298 vgImageOpacity = QVGImagePool::instance()->createImageForPixmap
299 (VG_sARGB_8888_PRE, w, h, VG_IMAGE_QUALITY_FASTER, this);
300 } else {
301 vgImageOpacity = vgCreateImage
302 (VG_sARGB_8888_PRE, w, h, VG_IMAGE_QUALITY_FASTER);
303 }
304
305 // Bail out if we run out of GPU memory - try again next time.
306 if (vgImageOpacity == VG_INVALID_HANDLE)
307 return VG_INVALID_HANDLE;
308 }
309 VGfloat matrix[20] = {
310 1.0f, 0.0f, 0.0f, 0.0f,
311 0.0f, 1.0f, 0.0f, 0.0f,
312 0.0f, 0.0f, 1.0f, 0.0f,
313 0.0f, 0.0f, 0.0f, opacity,
314 0.0f, 0.0f, 0.0f, 0.0f
315 };
316 vgColorMatrix(vgImageOpacity, vgImage, matrix);
317 cachedOpacity = opacity;
318 }
319
320 return vgImageOpacity;
321#else
322 // vgColorMatrix() doesn't work with ShivaVG, so ignore the opacity.
323 Q_UNUSED(opacity);
324 return toVGImage();
325#endif
326}
327
328void QVGPixmapData::detachImageFromPool()
329{
330 if (inImagePool) {
331 QVGImagePool::instance()->detachImage(this);
332 inImagePool = false;
333 }
334}
335
336void QVGPixmapData::hibernate()
337{
338 // If the image was imported (e.g, from an SgImage under Symbian),
339 // then we cannot copy it back to main memory for storage.
340 if (vgImage != VG_INVALID_HANDLE && source.isNull())
341 return;
342
343 forceToImage();
344 destroyImageAndContext();
345}
346
347void QVGPixmapData::reclaimImages()
348{
349 if (!inImagePool)
350 return;
351 forceToImage();
352 destroyImages();
353}
354
355extern int qt_defaultDpiX();
356extern int qt_defaultDpiY();
357
358int QVGPixmapData::metric(QPaintDevice::PaintDeviceMetric metric) const
359{
360 switch (metric) {
361 case QPaintDevice::PdmWidth:
362 return w;
363 case QPaintDevice::PdmHeight:
364 return h;
365 case QPaintDevice::PdmNumColors:
366 return 0;
367 case QPaintDevice::PdmDepth:
368 return d;
369 case QPaintDevice::PdmWidthMM:
370 return qRound(w * 25.4 / qt_defaultDpiX());
371 case QPaintDevice::PdmHeightMM:
372 return qRound(h * 25.4 / qt_defaultDpiY());
373 case QPaintDevice::PdmDpiX:
374 case QPaintDevice::PdmPhysicalDpiX:
375 return qt_defaultDpiX();
376 case QPaintDevice::PdmDpiY:
377 case QPaintDevice::PdmPhysicalDpiY:
378 return qt_defaultDpiY();
379 default:
380 qWarning("QVGPixmapData::metric(): Invalid metric");
381 return 0;
382 }
383}
384
385// Force the pixmap data to be in QImage format.
386void QVGPixmapData::forceToImage()
387{
388 if (!isValid())
389 return;
390
391 if (source.isNull())
392 source = QImage(w, h, sourceFormat());
393
394 recreate = true;
395}
396
397QImage::Format QVGPixmapData::sourceFormat() const
398{
399 return QImage::Format_ARGB32_Premultiplied;
400}
401
402/*
403 \internal
404
405 Returns the VGImage that is storing the contents of \a pixmap.
406 Returns VG_INVALID_HANDLE if \a pixmap is not owned by the OpenVG
407 graphics system or \a pixmap is invalid.
408
409 This function is typically used to access the backing store
410 for a pixmap when executing raw OpenVG calls. It must only
411 be used when a QPainter is active and the OpenVG paint engine
412 is in use by the QPainter.
413
414 \sa {QtOpenVG Module}
415*/
416Q_OPENVG_EXPORT VGImage qPixmapToVGImage(const QPixmap& pixmap)
417{
418 QPixmapData *pd = pixmap.pixmapData();
419 if (!pd)
420 return VG_INVALID_HANDLE; // null QPixmap
421 if (pd->classId() == QPixmapData::OpenVGClass) {
422 QVGPixmapData *vgpd = static_cast<QVGPixmapData *>(pd);
423 if (vgpd->isValid())
424 return vgpd->toVGImage();
425 }
426 return VG_INVALID_HANDLE;
427}
428
429#if defined(Q_OS_SYMBIAN)
430
431static CFbsBitmap* createBlitCopy(CFbsBitmap* bitmap)
432{
433 CFbsBitmap *copy = q_check_ptr(new CFbsBitmap);
434 if(!copy)
435 return 0;
436
437 if (copy->Create(bitmap->SizeInPixels(), bitmap->DisplayMode()) != KErrNone) {
438 delete copy;
439 copy = 0;
440
441 return 0;
442 }
443
444 CFbsBitmapDevice* bitmapDevice = 0;
445 CFbsBitGc *bitmapGc = 0;
446 QT_TRAP_THROWING(bitmapDevice = CFbsBitmapDevice::NewL(copy));
447 QT_TRAP_THROWING(bitmapGc = CFbsBitGc::NewL());
448 bitmapGc->Activate(bitmapDevice);
449
450 bitmapGc->BitBlt(TPoint(), bitmap);
451
452 delete bitmapGc;
453 delete bitmapDevice;
454
455 return copy;
456}
457
458void QVGPixmapData::cleanup()
459{
460 is_null = w = h = 0;
461 recreate = false;
462 source = QImage();
463}
464
465void QVGPixmapData::fromNativeType(void* pixmap, NativeType type)
466{
467#if defined(QT_SYMBIAN_SUPPORTS_SGIMAGE) && !defined(QT_NO_EGL)
468 if (type == QPixmapData::SgImage && pixmap) {
469 RSgImage *sgImage = reinterpret_cast<RSgImage*>(pixmap);
470 // when "0" used as argument then
471 // default display, context are used
472 if (!context)
473 context = qt_vg_create_context(0, QInternal::Pixmap);
474
475 destroyImages();
476 prevSize = QSize();
477
478 TInt err = 0;
479
480 err = SgDriver::Open();
481 if(err != KErrNone) {
482 cleanup();
483 return;
484 }
485
486 if(sgImage->IsNull()) {
487 cleanup();
488 SgDriver::Close();
489 return;
490 }
491
492 TSgImageInfo sgImageInfo;
493 err = sgImage->GetInfo(sgImageInfo);
494 if(err != KErrNone) {
495 cleanup();
496 SgDriver::Close();
497 return;
498 }
499
500 pfnEglCreateImageKHR eglCreateImageKHR = (pfnEglCreateImageKHR) eglGetProcAddress("eglCreateImageKHR");
501 pfnEglDestroyImageKHR eglDestroyImageKHR = (pfnEglDestroyImageKHR) eglGetProcAddress("eglDestroyImageKHR");
502 pfnVgCreateEGLImageTargetKHR vgCreateEGLImageTargetKHR = (pfnVgCreateEGLImageTargetKHR) eglGetProcAddress("vgCreateEGLImageTargetKHR");
503
504 if(eglGetError() != EGL_SUCCESS || !eglCreateImageKHR || !eglDestroyImageKHR || !vgCreateEGLImageTargetKHR) {
505 cleanup();
506 SgDriver::Close();
507 return;
508 }
509
510 const EGLint KEglImageAttribs[] = {EGL_IMAGE_PRESERVED_SYMBIAN, EGL_TRUE, EGL_NONE};
511 EGLImageKHR eglImage = eglCreateImageKHR(context->display(),
512 EGL_NO_CONTEXT,
513 EGL_NATIVE_PIXMAP_KHR,
514 (EGLClientBuffer)sgImage,
515 (EGLint*)KEglImageAttribs);
516
517 if(eglGetError() != EGL_SUCCESS) {
518 cleanup();
519 SgDriver::Close();
520 return;
521 }
522
523 vgImage = vgCreateEGLImageTargetKHR(eglImage);
524 if(vgGetError() != VG_NO_ERROR) {
525 cleanup();
526 eglDestroyImageKHR(context->display(), eglImage);
527 SgDriver::Close();
528 return;
529 }
530
531 w = sgImageInfo.iSizeInPixels.iWidth;
532 h = sgImageInfo.iSizeInPixels.iHeight;
533 d = 32; // We always use ARGB_Premultiplied for VG pixmaps.
534 is_null = (w <= 0 || h <= 0);
535 source = QImage();
536 recreate = false;
537 prevSize = QSize(w, h);
538 setSerialNumber(++qt_vg_pixmap_serial);
539 // release stuff
540 eglDestroyImageKHR(context->display(), eglImage);
541 SgDriver::Close();
542 } else if (type == QPixmapData::FbsBitmap) {
543 CFbsBitmap *bitmap = reinterpret_cast<CFbsBitmap*>(pixmap);
544
545 bool deleteSourceBitmap = false;
546
547#ifdef Q_SYMBIAN_HAS_EXTENDED_BITMAP_TYPE
548
549 // Rasterize extended bitmaps
550
551 TUid extendedBitmapType = bitmap->ExtendedBitmapType();
552 if (extendedBitmapType != KNullUid) {
553 bitmap = createBlitCopy(bitmap);
554 deleteSourceBitmap = true;
555 }
556#endif
557
558 if (bitmap->IsCompressedInRAM()) {
559 bitmap = createBlitCopy(bitmap);
560 deleteSourceBitmap = true;
561 }
562
563 TDisplayMode displayMode = bitmap->DisplayMode();
564 QImage::Format format = qt_TDisplayMode2Format(displayMode);
565
566 TSize size = bitmap->SizeInPixels();
567
568 bitmap->BeginDataAccess();
569 uchar *bytes = (uchar*)bitmap->DataAddress();
570 QImage img = QImage(bytes, size.iWidth, size.iHeight, format);
571 img = img.copy();
572 bitmap->EndDataAccess();
573
574 if(displayMode == EGray2) {
575 //Symbian thinks set pixels are white/transparent, Qt thinks they are foreground/solid
576 //So invert mono bitmaps so that masks work correctly.
577 img.invertPixels();
578 } else if(displayMode == EColor16M) {
579 img = img.rgbSwapped(); // EColor16M is BGR
580 }
581
582 fromImage(img, Qt::AutoColor);
583
584 if(deleteSourceBitmap)
585 delete bitmap;
586 }
587#else
588 Q_UNUSED(pixmap);
589 Q_UNUSED(type);
590#endif
591}
592
593void* QVGPixmapData::toNativeType(NativeType type)
594{
595#if defined(QT_SYMBIAN_SUPPORTS_SGIMAGE) && !defined(QT_NO_EGL)
596 if (type == QPixmapData::SgImage) {
597 toVGImage();
598
599 if(!isValid() || vgImage == VG_INVALID_HANDLE)
600 return 0;
601
602 TInt err = 0;
603
604 err = SgDriver::Open();
605 if(err != KErrNone)
606 return 0;
607
608 TSgImageInfo sgInfo;
609 sgInfo.iPixelFormat = EUidPixelFormatARGB_8888_PRE;
610 sgInfo.iSizeInPixels.SetSize(w, h);
611 sgInfo.iUsage = ESgUsageOpenVgImage | ESgUsageOpenVgTarget;
612 sgInfo.iShareable = ETrue;
613 sgInfo.iCpuAccess = ESgCpuAccessNone;
614 sgInfo.iScreenId = KSgScreenIdMain; //KSgScreenIdAny;
615 sgInfo.iUserAttributes = NULL;
616 sgInfo.iUserAttributeCount = 0;
617
618 RSgImage *sgImage = q_check_ptr(new RSgImage());
619 err = sgImage->Create(sgInfo, NULL, NULL);
620 if(err != KErrNone) {
621 SgDriver::Close();
622 return 0;
623 }
624
625 pfnEglCreateImageKHR eglCreateImageKHR = (pfnEglCreateImageKHR) eglGetProcAddress("eglCreateImageKHR");
626 pfnEglDestroyImageKHR eglDestroyImageKHR = (pfnEglDestroyImageKHR) eglGetProcAddress("eglDestroyImageKHR");
627 pfnVgCreateEGLImageTargetKHR vgCreateEGLImageTargetKHR = (pfnVgCreateEGLImageTargetKHR) eglGetProcAddress("vgCreateEGLImageTargetKHR");
628
629 if(eglGetError() != EGL_SUCCESS || !eglCreateImageKHR || !eglDestroyImageKHR || !vgCreateEGLImageTargetKHR) {
630 SgDriver::Close();
631 return 0;
632 }
633
634 const EGLint KEglImageAttribs[] = {EGL_IMAGE_PRESERVED_SYMBIAN, EGL_TRUE, EGL_NONE};
635 EGLImageKHR eglImage = eglCreateImageKHR(context->display(),
636 EGL_NO_CONTEXT,
637 EGL_NATIVE_PIXMAP_KHR,
638 (EGLClientBuffer)sgImage,
639 (EGLint*)KEglImageAttribs);
640 if(eglGetError() != EGL_SUCCESS) {
641 sgImage->Close();
642 SgDriver::Close();
643 return 0;
644 }
645
646 VGImage dstVgImage = vgCreateEGLImageTargetKHR(eglImage);
647 if(vgGetError() != VG_NO_ERROR) {
648 eglDestroyImageKHR(context->display(), eglImage);
649 sgImage->Close();
650 SgDriver::Close();
651 return 0;
652 }
653
654 vgCopyImage(dstVgImage, 0, 0,
655 vgImage, 0, 0,
656 w, h, VG_FALSE);
657
658 if(vgGetError() != VG_NO_ERROR) {
659 sgImage->Close();
660 sgImage = 0;
661 }
662 // release stuff
663 vgDestroyImage(dstVgImage);
664 eglDestroyImageKHR(context->display(), eglImage);
665 SgDriver::Close();
666 return reinterpret_cast<void*>(sgImage);
667 } else if (type == QPixmapData::FbsBitmap) {
668 CFbsBitmap *bitmap = q_check_ptr(new CFbsBitmap);
669
670 if (bitmap) {
671 if (bitmap->Create(TSize(source.width(), source.height()),
672 EColor16MAP) == KErrNone) {
673 const uchar *sptr = qt_vg_imageBits(source);
674 bitmap->BeginDataAccess();
675
676 uchar *dptr = (uchar*)bitmap->DataAddress();
677 Mem::Copy(dptr, sptr, source.byteCount());
678
679 bitmap->EndDataAccess();
680 } else {
681 delete bitmap;
682 bitmap = 0;
683 }
684 }
685
686 return reinterpret_cast<void*>(bitmap);
687 }
688#else
689 Q_UNUSED(type);
690 return 0;
691#endif
692}
693#endif //Q_OS_SYMBIAN
694
695QT_END_NAMESPACE
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