SkPicturePlayback.cpp revision 07adb6359fd137ccb633b2c64ee2287c8edfd701
1
2/*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8#include "SkPicturePlayback.h"
9#include "SkPictureRecord.h"
10#include "SkTypeface.h"
11#include "SkOrderedReadBuffer.h"
12#include "SkOrderedWriteBuffer.h"
13#include <new>
14#include "SkBBoxHierarchy.h"
15#include "SkPictureStateTree.h"
16#include "SkTSort.h"
17
18template <typename T> int SafeCount(const T* obj) {
19    return obj ? obj->count() : 0;
20}
21
22/*  Define this to spew out a debug statement whenever we skip the remainder of
23    a save/restore block because a clip... command returned false (empty).
24 */
25#define SPEW_CLIP_SKIPPINGx
26
27SkPicturePlayback::SkPicturePlayback() {
28    this->init();
29}
30
31SkPicturePlayback::SkPicturePlayback(const SkPictureRecord& record, bool deepCopy) {
32#ifdef SK_DEBUG_SIZE
33    size_t overallBytes, bitmapBytes, matricesBytes,
34    paintBytes, pathBytes, pictureBytes, regionBytes;
35    int bitmaps = record.bitmaps(&bitmapBytes);
36    int matrices = record.matrices(&matricesBytes);
37    int paints = record.paints(&paintBytes);
38    int paths = record.paths(&pathBytes);
39    int pictures = record.pictures(&pictureBytes);
40    int regions = record.regions(&regionBytes);
41    SkDebugf("picture record mem used %zd (stream %zd) ", record.size(),
42             record.streamlen());
43    if (bitmaps != 0)
44        SkDebugf("bitmaps size %zd (bitmaps:%d) ", bitmapBytes, bitmaps);
45    if (matrices != 0)
46        SkDebugf("matrices size %zd (matrices:%d) ", matricesBytes, matrices);
47    if (paints != 0)
48        SkDebugf("paints size %zd (paints:%d) ", paintBytes, paints);
49    if (paths != 0)
50        SkDebugf("paths size %zd (paths:%d) ", pathBytes, paths);
51    if (pictures != 0)
52        SkDebugf("pictures size %zd (pictures:%d) ", pictureBytes, pictures);
53    if (regions != 0)
54        SkDebugf("regions size %zd (regions:%d) ", regionBytes, regions);
55    if (record.fPointWrites != 0)
56        SkDebugf("points size %zd (points:%d) ", record.fPointBytes, record.fPointWrites);
57    if (record.fRectWrites != 0)
58        SkDebugf("rects size %zd (rects:%d) ", record.fRectBytes, record.fRectWrites);
59    if (record.fTextWrites != 0)
60        SkDebugf("text size %zd (text strings:%d) ", record.fTextBytes, record.fTextWrites);
61
62    SkDebugf("\n");
63#endif
64#ifdef SK_DEBUG_DUMP
65    record.dumpMatrices();
66    record.dumpPaints();
67#endif
68
69    record.validate(record.writeStream().bytesWritten(), 0);
70    const SkWriter32& writer = record.writeStream();
71    init();
72    if (writer.bytesWritten() == 0) {
73        fOpData = SkData::NewEmpty();
74        return;
75    }
76
77    fBoundingHierarchy = record.fBoundingHierarchy;
78    fStateTree = record.fStateTree;
79
80    SkSafeRef(fBoundingHierarchy);
81    SkSafeRef(fStateTree);
82
83    if (NULL != fBoundingHierarchy) {
84        fBoundingHierarchy->flushDeferredInserts();
85    }
86
87    {
88        size_t size = writer.bytesWritten();
89        void* buffer = sk_malloc_throw(size);
90        writer.flatten(buffer);
91        SkASSERT(!fOpData);
92        fOpData = SkData::NewFromMalloc(buffer, size);
93    }
94
95    // copy over the refcnt dictionary to our reader
96    record.fFlattenableHeap.setupPlaybacks();
97
98    fBitmaps = record.fBitmapHeap->extractBitmaps();
99    fMatrices = record.fMatrices.unflattenToArray();
100    fPaints = record.fPaints.unflattenToArray();
101    fRegions = record.fRegions.unflattenToArray();
102
103    fBitmapHeap.reset(SkSafeRef(record.fBitmapHeap));
104    fPathHeap.reset(SkSafeRef(record.fPathHeap));
105
106    // ensure that the paths bounds are pre-computed
107    if (fPathHeap.get()) {
108        for (int i = 0; i < fPathHeap->count(); i++) {
109            (*fPathHeap)[i].updateBoundsCache();
110        }
111    }
112
113    const SkTDArray<SkPicture* >& pictures = record.getPictureRefs();
114    fPictureCount = pictures.count();
115    if (fPictureCount > 0) {
116        fPictureRefs = SkNEW_ARRAY(SkPicture*, fPictureCount);
117        for (int i = 0; i < fPictureCount; i++) {
118            if (deepCopy) {
119                fPictureRefs[i] = pictures[i]->clone();
120            } else {
121                fPictureRefs[i] = pictures[i];
122                fPictureRefs[i]->ref();
123            }
124        }
125    }
126
127#ifdef SK_DEBUG_SIZE
128    int overall = fPlayback->size(&overallBytes);
129    bitmaps = fPlayback->bitmaps(&bitmapBytes);
130    paints = fPlayback->paints(&paintBytes);
131    paths = fPlayback->paths(&pathBytes);
132    pictures = fPlayback->pictures(&pictureBytes);
133    regions = fPlayback->regions(&regionBytes);
134    SkDebugf("playback size %zd (objects:%d) ", overallBytes, overall);
135    if (bitmaps != 0)
136        SkDebugf("bitmaps size %zd (bitmaps:%d) ", bitmapBytes, bitmaps);
137    if (paints != 0)
138        SkDebugf("paints size %zd (paints:%d) ", paintBytes, paints);
139    if (paths != 0)
140        SkDebugf("paths size %zd (paths:%d) ", pathBytes, paths);
141    if (pictures != 0)
142        SkDebugf("pictures size %zd (pictures:%d) ", pictureBytes, pictures);
143    if (regions != 0)
144        SkDebugf("regions size %zd (regions:%d) ", regionBytes, regions);
145    SkDebugf("\n");
146#endif
147}
148
149static bool needs_deep_copy(const SkPaint& paint) {
150    /*
151     *  These fields are known to be immutable, and so can be shallow-copied
152     *
153     *  getTypeface()
154     *  getAnnotation()
155     *  paint.getColorFilter()
156     *  getXfermode()
157     */
158
159    return paint.getPathEffect() ||
160           paint.getShader() ||
161           paint.getMaskFilter() ||
162           paint.getRasterizer() ||
163           paint.getLooper() ||
164           paint.getImageFilter();
165}
166
167SkPicturePlayback::SkPicturePlayback(const SkPicturePlayback& src, SkPictCopyInfo* deepCopyInfo) {
168    this->init();
169
170    fBitmapHeap.reset(SkSafeRef(src.fBitmapHeap.get()));
171    fPathHeap.reset(SkSafeRef(src.fPathHeap.get()));
172
173    fMatrices = SkSafeRef(src.fMatrices);
174    fRegions = SkSafeRef(src.fRegions);
175    fOpData = SkSafeRef(src.fOpData);
176
177    fBoundingHierarchy = src.fBoundingHierarchy;
178    fStateTree = src.fStateTree;
179
180    SkSafeRef(fBoundingHierarchy);
181    SkSafeRef(fStateTree);
182
183    if (deepCopyInfo) {
184        int paintCount = SafeCount(src.fPaints);
185
186        if (src.fBitmaps) {
187            fBitmaps = SkTRefArray<SkBitmap>::Create(src.fBitmaps->begin(), src.fBitmaps->count());
188        }
189
190        if (!deepCopyInfo->initialized) {
191            /* The alternative to doing this is to have a clone method on the paint and have it make
192             * the deep copy of its internal structures as needed. The holdup to doing that is at
193             * this point we would need to pass the SkBitmapHeap so that we don't unnecessarily
194             * flatten the pixels in a bitmap shader.
195             */
196            deepCopyInfo->paintData.setCount(paintCount);
197
198            /* Use an SkBitmapHeap to avoid flattening bitmaps in shaders. If there already is one,
199             * use it. If this SkPicturePlayback was created from a stream, fBitmapHeap will be
200             * NULL, so create a new one.
201             */
202            if (fBitmapHeap.get() == NULL) {
203                // FIXME: Put this on the stack inside SkPicture::clone. Further, is it possible to
204                // do the rest of this initialization in SkPicture::clone as well?
205                SkBitmapHeap* heap = SkNEW(SkBitmapHeap);
206                deepCopyInfo->controller.setBitmapStorage(heap);
207                heap->unref();
208            } else {
209                deepCopyInfo->controller.setBitmapStorage(fBitmapHeap);
210            }
211
212            SkDEBUGCODE(int heapSize = SafeCount(fBitmapHeap.get());)
213            for (int i = 0; i < paintCount; i++) {
214                if (needs_deep_copy(src.fPaints->at(i))) {
215                    deepCopyInfo->paintData[i] =
216                        SkFlatData::Create<SkPaintTraits>(&deepCopyInfo->controller,
217                                                          src.fPaints->at(i), 0);
218
219                } else {
220                    // this is our sentinel, which we use in the unflatten loop
221                    deepCopyInfo->paintData[i] = NULL;
222                }
223            }
224            SkASSERT(SafeCount(fBitmapHeap.get()) == heapSize);
225
226            // needed to create typeface playback
227            deepCopyInfo->controller.setupPlaybacks();
228            deepCopyInfo->initialized = true;
229        }
230
231        fPaints = SkTRefArray<SkPaint>::Create(paintCount);
232        SkASSERT(deepCopyInfo->paintData.count() == paintCount);
233        SkBitmapHeap* bmHeap = deepCopyInfo->controller.getBitmapHeap();
234        SkTypefacePlayback* tfPlayback = deepCopyInfo->controller.getTypefacePlayback();
235        for (int i = 0; i < paintCount; i++) {
236            if (deepCopyInfo->paintData[i]) {
237                deepCopyInfo->paintData[i]->unflatten<SkPaintTraits>(&fPaints->writableAt(i),
238                                                                     bmHeap, tfPlayback);
239            } else {
240                // needs_deep_copy was false, so just need to assign
241                fPaints->writableAt(i) = src.fPaints->at(i);
242            }
243        }
244
245    } else {
246        fBitmaps = SkSafeRef(src.fBitmaps);
247        fPaints = SkSafeRef(src.fPaints);
248    }
249
250    fPictureCount = src.fPictureCount;
251    fPictureRefs = SkNEW_ARRAY(SkPicture*, fPictureCount);
252    for (int i = 0; i < fPictureCount; i++) {
253        if (deepCopyInfo) {
254            fPictureRefs[i] = src.fPictureRefs[i]->clone();
255        } else {
256            fPictureRefs[i] = src.fPictureRefs[i];
257            fPictureRefs[i]->ref();
258        }
259    }
260}
261
262void SkPicturePlayback::init() {
263    fBitmaps = NULL;
264    fMatrices = NULL;
265    fPaints = NULL;
266    fPictureRefs = NULL;
267    fRegions = NULL;
268    fPictureCount = 0;
269    fOpData = NULL;
270    fFactoryPlayback = NULL;
271    fBoundingHierarchy = NULL;
272    fStateTree = NULL;
273}
274
275SkPicturePlayback::~SkPicturePlayback() {
276    fOpData->unref();
277
278    SkSafeUnref(fBitmaps);
279    SkSafeUnref(fMatrices);
280    SkSafeUnref(fPaints);
281    SkSafeUnref(fRegions);
282    SkSafeUnref(fBoundingHierarchy);
283    SkSafeUnref(fStateTree);
284
285    for (int i = 0; i < fPictureCount; i++) {
286        fPictureRefs[i]->unref();
287    }
288    SkDELETE_ARRAY(fPictureRefs);
289
290    SkDELETE(fFactoryPlayback);
291}
292
293void SkPicturePlayback::dumpSize() const {
294    SkDebugf("--- picture size: ops=%d bitmaps=%d [%d] matrices=%d [%d] paints=%d [%d] paths=%d regions=%d\n",
295             fOpData->size(),
296             SafeCount(fBitmaps), SafeCount(fBitmaps) * sizeof(SkBitmap),
297             SafeCount(fMatrices), SafeCount(fMatrices) * sizeof(SkMatrix),
298             SafeCount(fPaints), SafeCount(fPaints) * sizeof(SkPaint),
299             SafeCount(fPathHeap.get()),
300             SafeCount(fRegions));
301}
302
303bool SkPicturePlayback::containsBitmaps() const {
304    if (fBitmaps && fBitmaps->count() > 0) {
305        return true;
306    }
307    for (int i = 0; i < fPictureCount; ++i) {
308        if (fPictureRefs[i]->willPlayBackBitmaps()) {
309            return true;
310        }
311    }
312    return false;
313}
314
315///////////////////////////////////////////////////////////////////////////////
316///////////////////////////////////////////////////////////////////////////////
317
318#define PICT_READER_TAG     SkSetFourByteTag('r', 'e', 'a', 'd')
319#define PICT_FACTORY_TAG    SkSetFourByteTag('f', 'a', 'c', 't')
320#define PICT_TYPEFACE_TAG   SkSetFourByteTag('t', 'p', 'f', 'c')
321#define PICT_PICTURE_TAG    SkSetFourByteTag('p', 'c', 't', 'r')
322
323// This tag specifies the size of the ReadBuffer, needed for the following tags
324#define PICT_BUFFER_SIZE_TAG     SkSetFourByteTag('a', 'r', 'a', 'y')
325// these are all inside the ARRAYS tag
326#define PICT_BITMAP_BUFFER_TAG  SkSetFourByteTag('b', 't', 'm', 'p')
327#define PICT_MATRIX_BUFFER_TAG  SkSetFourByteTag('m', 't', 'r', 'x')
328#define PICT_PAINT_BUFFER_TAG   SkSetFourByteTag('p', 'n', 't', ' ')
329#define PICT_PATH_BUFFER_TAG    SkSetFourByteTag('p', 't', 'h', ' ')
330#define PICT_REGION_BUFFER_TAG  SkSetFourByteTag('r', 'g', 'n', ' ')
331
332// Always write this guy last (with no length field afterwards)
333#define PICT_EOF_TAG     SkSetFourByteTag('e', 'o', 'f', ' ')
334
335#include "SkStream.h"
336
337static void writeTagSize(SkOrderedWriteBuffer& buffer, uint32_t tag,
338                         uint32_t size) {
339    buffer.writeUInt(tag);
340    buffer.writeUInt(size);
341}
342
343static void writeTagSize(SkWStream* stream, uint32_t tag,
344                         uint32_t size) {
345    stream->write32(tag);
346    stream->write32(size);
347}
348
349static void writeFactories(SkWStream* stream, const SkFactorySet& rec) {
350    int count = rec.count();
351
352    writeTagSize(stream, PICT_FACTORY_TAG, count);
353
354    SkAutoSTMalloc<16, SkFlattenable::Factory> storage(count);
355    SkFlattenable::Factory* array = (SkFlattenable::Factory*)storage.get();
356    rec.copyToArray(array);
357
358    for (int i = 0; i < count; i++) {
359        const char* name = SkFlattenable::FactoryToName(array[i]);
360//        SkDebugf("---- write factories [%d] %p <%s>\n", i, array[i], name);
361        if (NULL == name || 0 == *name) {
362            stream->writePackedUInt(0);
363        } else {
364            uint32_t len = strlen(name);
365            stream->writePackedUInt(len);
366            stream->write(name, len);
367        }
368    }
369}
370
371static void writeTypefaces(SkWStream* stream, const SkRefCntSet& rec) {
372    int count = rec.count();
373
374    writeTagSize(stream, PICT_TYPEFACE_TAG, count);
375
376    SkAutoSTMalloc<16, SkTypeface*> storage(count);
377    SkTypeface** array = (SkTypeface**)storage.get();
378    rec.copyToArray((SkRefCnt**)array);
379
380    for (int i = 0; i < count; i++) {
381        array[i]->serialize(stream);
382    }
383}
384
385void SkPicturePlayback::flattenToBuffer(SkOrderedWriteBuffer& buffer) const {
386    int i, n;
387
388    if ((n = SafeCount(fBitmaps)) > 0) {
389        writeTagSize(buffer, PICT_BITMAP_BUFFER_TAG, n);
390        for (i = 0; i < n; i++) {
391            buffer.writeBitmap((*fBitmaps)[i]);
392        }
393    }
394
395    if ((n = SafeCount(fMatrices)) > 0) {
396        writeTagSize(buffer, PICT_MATRIX_BUFFER_TAG, n);
397        for (i = 0; i < n; i++) {
398            buffer.writeMatrix((*fMatrices)[i]);
399        }
400
401    }
402
403    if ((n = SafeCount(fPaints)) > 0) {
404        writeTagSize(buffer, PICT_PAINT_BUFFER_TAG, n);
405        for (i = 0; i < n; i++) {
406            buffer.writePaint((*fPaints)[i]);
407        }
408    }
409
410    if ((n = SafeCount(fPathHeap.get())) > 0) {
411        writeTagSize(buffer, PICT_PATH_BUFFER_TAG, n);
412        fPathHeap->flatten(buffer);
413    }
414
415    if ((n = SafeCount(fRegions)) > 0) {
416        writeTagSize(buffer, PICT_REGION_BUFFER_TAG, n);
417        for (i = 0; i < n; i++) {
418            buffer.writeRegion((*fRegions)[i]);
419        }
420    }
421}
422
423void SkPicturePlayback::serialize(SkWStream* stream,
424                                  SkPicture::EncodeBitmap encoder) const {
425    writeTagSize(stream, PICT_READER_TAG, fOpData->size());
426    stream->write(fOpData->bytes(), fOpData->size());
427
428    if (fPictureCount > 0) {
429        writeTagSize(stream, PICT_PICTURE_TAG, fPictureCount);
430        for (int i = 0; i < fPictureCount; i++) {
431            fPictureRefs[i]->serialize(stream, encoder);
432        }
433    }
434
435    // Write some of our data into a writebuffer, and then serialize that
436    // into our stream
437    {
438        SkRefCntSet  typefaceSet;
439        SkFactorySet factSet;
440
441        SkOrderedWriteBuffer buffer(1024);
442
443        buffer.setFlags(SkFlattenableWriteBuffer::kCrossProcess_Flag);
444        buffer.setTypefaceRecorder(&typefaceSet);
445        buffer.setFactoryRecorder(&factSet);
446        buffer.setBitmapEncoder(encoder);
447
448        this->flattenToBuffer(buffer);
449
450        // We have to write these to sets into the stream *before* we write
451        // the buffer, since parsing that buffer will require that we already
452        // have these sets available to use.
453        writeFactories(stream, factSet);
454        writeTypefaces(stream, typefaceSet);
455
456        writeTagSize(stream, PICT_BUFFER_SIZE_TAG, buffer.size());
457        buffer.writeToStream(stream);
458    }
459
460    stream->write32(PICT_EOF_TAG);
461}
462
463///////////////////////////////////////////////////////////////////////////////
464
465/**
466 *  Return the corresponding SkFlattenableReadBuffer flags, given a set of
467 *  SkPictInfo flags.
468 */
469static uint32_t pictInfoFlagsToReadBufferFlags(uint32_t pictInfoFlags) {
470    static const struct {
471        uint32_t    fSrc;
472        uint32_t    fDst;
473    } gSD[] = {
474        { SkPictInfo::kCrossProcess_Flag,   SkFlattenableReadBuffer::kCrossProcess_Flag },
475        { SkPictInfo::kScalarIsFloat_Flag,  SkFlattenableReadBuffer::kScalarIsFloat_Flag },
476        { SkPictInfo::kPtrIs64Bit_Flag,     SkFlattenableReadBuffer::kPtrIs64Bit_Flag },
477    };
478
479    uint32_t rbMask = 0;
480    for (size_t i = 0; i < SK_ARRAY_COUNT(gSD); ++i) {
481        if (pictInfoFlags & gSD[i].fSrc) {
482            rbMask |= gSD[i].fDst;
483        }
484    }
485    return rbMask;
486}
487
488bool SkPicturePlayback::parseStreamTag(SkStream* stream, const SkPictInfo& info, uint32_t tag,
489                                       size_t size, SkPicture::InstallPixelRefProc proc) {
490    /*
491     *  By the time we encounter BUFFER_SIZE_TAG, we need to have already seen
492     *  its dependents: FACTORY_TAG and TYPEFACE_TAG. These two are not required
493     *  but if they are present, they need to have been seen before the buffer.
494     *
495     *  We assert that if/when we see either of these, that we have not yet seen
496     *  the buffer tag, because if we have, then its too-late to deal with the
497     *  factories or typefaces.
498     */
499    SkDEBUGCODE(bool haveBuffer = false;)
500
501    switch (tag) {
502        case PICT_READER_TAG: {
503            SkAutoMalloc storage(size);
504            if (stream->read(storage.get(), size) != size) {
505                return false;
506            }
507            SkASSERT(NULL == fOpData);
508            fOpData = SkData::NewFromMalloc(storage.detach(), size);
509        } break;
510        case PICT_FACTORY_TAG: {
511            SkASSERT(!haveBuffer);
512            fFactoryPlayback = SkNEW_ARGS(SkFactoryPlayback, (size));
513            for (size_t i = 0; i < size; i++) {
514                SkString str;
515                const size_t len = stream->readPackedUInt();
516                str.resize(len);
517                if (stream->read(str.writable_str(), len) != len) {
518                    return false;
519                }
520                fFactoryPlayback->base()[i] = SkFlattenable::NameToFactory(str.c_str());
521            }
522        } break;
523        case PICT_TYPEFACE_TAG: {
524            SkASSERT(!haveBuffer);
525            fTFPlayback.setCount(size);
526            for (size_t i = 0; i < size; i++) {
527                SkAutoTUnref<SkTypeface> tf(SkTypeface::Deserialize(stream));
528                if (!tf.get()) {    // failed to deserialize
529                    // fTFPlayback asserts it never has a null, so we plop in
530                    // the default here.
531                    tf.reset(SkTypeface::RefDefault());
532                }
533                fTFPlayback.set(i, tf);
534            }
535        } break;
536        case PICT_PICTURE_TAG: {
537            fPictureCount = size;
538            fPictureRefs = SkNEW_ARRAY(SkPicture*, fPictureCount);
539            bool success = true;
540            int i = 0;
541            for ( ; i < fPictureCount; i++) {
542                fPictureRefs[i] = SkPicture::CreateFromStream(stream, proc);
543                if (NULL == fPictureRefs[i]) {
544                    success = false;
545                    break;
546                }
547            }
548            if (!success) {
549                // Delete all of the pictures that were already created (up to but excluding i):
550                for (int j = 0; j < i; j++) {
551                    fPictureRefs[j]->unref();
552                }
553                // Delete the array
554                SkDELETE_ARRAY(fPictureRefs);
555                fPictureCount = 0;
556                return false;
557            }
558        } break;
559        case PICT_BUFFER_SIZE_TAG: {
560            SkAutoMalloc storage(size);
561            if (stream->read(storage.get(), size) != size) {
562                return false;
563            }
564
565            SkOrderedReadBuffer buffer(storage.get(), size);
566            buffer.setFlags(pictInfoFlagsToReadBufferFlags(info.fFlags));
567
568            fFactoryPlayback->setupBuffer(buffer);
569            fTFPlayback.setupBuffer(buffer);
570            buffer.setBitmapDecoder(proc);
571
572            while (!buffer.eof()) {
573                tag = buffer.readUInt();
574                size = buffer.readUInt();
575                if (!this->parseBufferTag(buffer, tag, size)) {
576                    return false;
577                }
578            }
579            SkDEBUGCODE(haveBuffer = true;)
580        } break;
581    }
582    return true;    // success
583}
584
585bool SkPicturePlayback::parseBufferTag(SkOrderedReadBuffer& buffer,
586                                       uint32_t tag, size_t size) {
587    switch (tag) {
588        case PICT_BITMAP_BUFFER_TAG: {
589            fBitmaps = SkTRefArray<SkBitmap>::Create(size);
590            for (size_t i = 0; i < size; ++i) {
591                SkBitmap* bm = &fBitmaps->writableAt(i);
592                buffer.readBitmap(bm);
593                bm->setImmutable();
594            }
595        } break;
596        case PICT_MATRIX_BUFFER_TAG:
597            fMatrices = SkTRefArray<SkMatrix>::Create(size);
598            for (size_t i = 0; i < size; ++i) {
599                buffer.readMatrix(&fMatrices->writableAt(i));
600            }
601            break;
602        case PICT_PAINT_BUFFER_TAG: {
603            fPaints = SkTRefArray<SkPaint>::Create(size);
604            for (size_t i = 0; i < size; ++i) {
605                buffer.readPaint(&fPaints->writableAt(i));
606            }
607        } break;
608        case PICT_PATH_BUFFER_TAG:
609            if (size > 0) {
610                fPathHeap.reset(SkNEW_ARGS(SkPathHeap, (buffer)));
611            }
612            break;
613        case PICT_REGION_BUFFER_TAG: {
614            fRegions = SkTRefArray<SkRegion>::Create(size);
615            for (size_t i = 0; i < size; ++i) {
616                buffer.readRegion(&fRegions->writableAt(i));
617            }
618        } break;
619        default:
620            // The tag was invalid.
621            return false;
622    }
623    return true;    // success
624}
625
626SkPicturePlayback* SkPicturePlayback::CreateFromStream(SkStream* stream,
627                                                       const SkPictInfo& info,
628                                                       SkPicture::InstallPixelRefProc proc) {
629    SkAutoTDelete<SkPicturePlayback> playback(SkNEW(SkPicturePlayback));
630
631    if (!playback->parseStream(stream, info, proc)) {
632        return NULL;
633    }
634    return playback.detach();
635}
636
637bool SkPicturePlayback::parseStream(SkStream* stream, const SkPictInfo& info,
638                                    SkPicture::InstallPixelRefProc proc) {
639    for (;;) {
640        uint32_t tag = stream->readU32();
641        if (PICT_EOF_TAG == tag) {
642            break;
643        }
644
645        uint32_t size = stream->readU32();
646        if (!this->parseStreamTag(stream, info, tag, size, proc)) {
647            return false; // we're invalid
648        }
649    }
650    return true;
651}
652
653///////////////////////////////////////////////////////////////////////////////
654///////////////////////////////////////////////////////////////////////////////
655
656#ifdef SPEW_CLIP_SKIPPING
657struct SkipClipRec {
658    int     fCount;
659    size_t  fSize;
660
661    SkipClipRec() {
662        fCount = 0;
663        fSize = 0;
664    }
665
666    void recordSkip(size_t bytes) {
667        fCount += 1;
668        fSize += bytes;
669    }
670};
671#endif
672
673#ifdef SK_DEVELOPER
674bool SkPicturePlayback::preDraw(int opIndex, int type) {
675    return false;
676}
677
678void SkPicturePlayback::postDraw(int opIndex) {
679}
680#endif
681
682/*
683 * Read the next op code and chunk size from 'reader'. The returned size
684 * is the entire size of the chunk (including the opcode). Thus, the
685 * offset just prior to calling read_op_and_size + 'size' is the offset
686 * to the next chunk's op code. This also means that the size of a chunk
687 * with no arguments (just an opcode) will be 4.
688 */
689static DrawType read_op_and_size(SkReader32* reader, uint32_t* size) {
690    uint32_t temp = reader->readInt();
691    uint32_t op;
692    if (((uint8_t) temp) == temp) {
693        // old skp file - no size information
694        op = temp;
695        *size = 0;
696    } else {
697        UNPACK_8_24(temp, op, *size);
698        if (MASK_24 == *size) {
699            *size = reader->readInt();
700        }
701    }
702    return (DrawType) op;
703}
704
705void SkPicturePlayback::draw(SkCanvas& canvas, SkDrawPictureCallback* callback) {
706#ifdef ENABLE_TIME_DRAW
707    SkAutoTime  at("SkPicture::draw", 50);
708#endif
709
710#ifdef SPEW_CLIP_SKIPPING
711    SkipClipRec skipRect, skipRRect, skipRegion, skipPath;
712#endif
713
714#ifdef SK_BUILD_FOR_ANDROID
715    SkAutoMutexAcquire autoMutex(fDrawMutex);
716#endif
717
718    // kDrawComplete will be the signal that we have reached the end of
719    // the command stream
720    static const uint32_t kDrawComplete = SK_MaxU32;
721
722    SkReader32 reader(fOpData->bytes(), fOpData->size());
723    TextContainer text;
724    SkTDArray<void*> results;
725
726    if (NULL != fStateTree && NULL != fBoundingHierarchy) {
727        SkRect clipBounds;
728        if (canvas.getClipBounds(&clipBounds)) {
729            SkIRect query;
730            clipBounds.roundOut(&query);
731            fBoundingHierarchy->search(query, &results);
732            if (results.count() == 0) {
733                return;
734            }
735            SkTQSort<SkPictureStateTree::Draw>(
736                reinterpret_cast<SkPictureStateTree::Draw**>(results.begin()),
737                reinterpret_cast<SkPictureStateTree::Draw**>(results.end()-1));
738        }
739    }
740
741    SkPictureStateTree::Iterator it = (NULL == fStateTree) ?
742        SkPictureStateTree::Iterator() :
743        fStateTree->getIterator(results, &canvas);
744
745    if (it.isValid()) {
746        uint32_t skipTo = it.draw();
747        if (kDrawComplete == skipTo) {
748            return;
749        }
750        reader.setOffset(skipTo);
751    }
752
753    // Record this, so we can concat w/ it if we encounter a setMatrix()
754    SkMatrix initialMatrix = canvas.getTotalMatrix();
755    int originalSaveCount = canvas.getSaveCount();
756
757#ifdef SK_BUILD_FOR_ANDROID
758    fAbortCurrentPlayback = false;
759#endif
760
761#ifdef SK_DEVELOPER
762    int opIndex = -1;
763#endif
764
765    while (!reader.eof()) {
766        if (callback && callback->abortDrawing()) {
767            canvas.restoreToCount(originalSaveCount);
768            return;
769        }
770#ifdef SK_BUILD_FOR_ANDROID
771        if (fAbortCurrentPlayback) {
772            return;
773        }
774#endif
775
776        size_t curOffset = reader.offset();
777        uint32_t size;
778        DrawType op = read_op_and_size(&reader, &size);
779        size_t skipTo = 0;
780        if (NOOP == op) {
781            // NOOPs are to be ignored - do not propagate them any further
782            skipTo = curOffset + size;
783#ifdef SK_DEVELOPER
784        } else {
785            opIndex++;
786            if (this->preDraw(opIndex, op)) {
787                skipTo = curOffset + size;
788            }
789#endif
790        }
791
792        if (0 != skipTo) {
793            if (it.isValid()) {
794                // If using a bounding box hierarchy, advance the state tree
795                // iterator until at or after skipTo
796                uint32_t adjustedSkipTo;
797                do {
798                    adjustedSkipTo = it.draw();
799                } while (adjustedSkipTo < skipTo);
800                skipTo = adjustedSkipTo;
801            }
802            if (kDrawComplete == skipTo) {
803                break;
804            }
805            reader.setOffset(skipTo);
806            continue;
807        }
808
809        switch (op) {
810            case CLIP_PATH: {
811                const SkPath& path = getPath(reader);
812                uint32_t packed = reader.readInt();
813                SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
814                bool doAA = ClipParams_unpackDoAA(packed);
815                size_t offsetToRestore = reader.readInt();
816                SkASSERT(!offsetToRestore || \
817                    offsetToRestore >= reader.offset());
818                if (!canvas.clipPath(path, regionOp, doAA) && offsetToRestore) {
819#ifdef SPEW_CLIP_SKIPPING
820                    skipPath.recordSkip(offsetToRestore - reader.offset());
821#endif
822                    reader.setOffset(offsetToRestore);
823                }
824            } break;
825            case CLIP_REGION: {
826                const SkRegion& region = getRegion(reader);
827                uint32_t packed = reader.readInt();
828                SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
829                size_t offsetToRestore = reader.readInt();
830                SkASSERT(!offsetToRestore || \
831                    offsetToRestore >= reader.offset());
832                if (!canvas.clipRegion(region, regionOp) && offsetToRestore) {
833#ifdef SPEW_CLIP_SKIPPING
834                    skipRegion.recordSkip(offsetToRestore - reader.offset());
835#endif
836                    reader.setOffset(offsetToRestore);
837                }
838            } break;
839            case CLIP_RECT: {
840                const SkRect& rect = reader.skipT<SkRect>();
841                uint32_t packed = reader.readInt();
842                SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
843                bool doAA = ClipParams_unpackDoAA(packed);
844                size_t offsetToRestore = reader.readInt();
845                SkASSERT(!offsetToRestore || \
846                         offsetToRestore >= reader.offset());
847                if (!canvas.clipRect(rect, regionOp, doAA) && offsetToRestore) {
848#ifdef SPEW_CLIP_SKIPPING
849                    skipRect.recordSkip(offsetToRestore - reader.offset());
850#endif
851                    reader.setOffset(offsetToRestore);
852                }
853            } break;
854            case CLIP_RRECT: {
855                SkRRect rrect;
856                reader.readRRect(&rrect);
857                uint32_t packed = reader.readInt();
858                SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
859                bool doAA = ClipParams_unpackDoAA(packed);
860                size_t offsetToRestore = reader.readInt();
861                SkASSERT(!offsetToRestore || \
862                         offsetToRestore >= reader.offset());
863                if (!canvas.clipRRect(rrect, regionOp, doAA) && offsetToRestore) {
864#ifdef SPEW_CLIP_SKIPPING
865                    skipRRect.recordSkip(offsetToRestore - reader.offset());
866#endif
867                    reader.setOffset(offsetToRestore);
868                }
869            } break;
870            case CONCAT:
871                canvas.concat(*getMatrix(reader));
872                break;
873            case DRAW_BITMAP: {
874                const SkPaint* paint = getPaint(reader);
875                const SkBitmap& bitmap = getBitmap(reader);
876                const SkPoint& loc = reader.skipT<SkPoint>();
877                canvas.drawBitmap(bitmap, loc.fX, loc.fY, paint);
878            } break;
879            case DRAW_BITMAP_RECT_TO_RECT: {
880                const SkPaint* paint = getPaint(reader);
881                const SkBitmap& bitmap = getBitmap(reader);
882                const SkRect* src = this->getRectPtr(reader);   // may be null
883                const SkRect& dst = reader.skipT<SkRect>();     // required
884                SkCanvas::DrawBitmapRectFlags flags;
885                flags = (SkCanvas::DrawBitmapRectFlags) reader.readInt();
886                canvas.drawBitmapRectToRect(bitmap, src, dst, paint, flags);
887            } break;
888            case DRAW_BITMAP_MATRIX: {
889                const SkPaint* paint = getPaint(reader);
890                const SkBitmap& bitmap = getBitmap(reader);
891                const SkMatrix* matrix = getMatrix(reader);
892                canvas.drawBitmapMatrix(bitmap, *matrix, paint);
893            } break;
894            case DRAW_BITMAP_NINE: {
895                const SkPaint* paint = getPaint(reader);
896                const SkBitmap& bitmap = getBitmap(reader);
897                const SkIRect& src = reader.skipT<SkIRect>();
898                const SkRect& dst = reader.skipT<SkRect>();
899                canvas.drawBitmapNine(bitmap, src, dst, paint);
900            } break;
901            case DRAW_CLEAR:
902                canvas.clear(reader.readInt());
903                break;
904            case DRAW_DATA: {
905                size_t length = reader.readInt();
906                canvas.drawData(reader.skip(length), length);
907                // skip handles padding the read out to a multiple of 4
908            } break;
909            case BEGIN_COMMENT_GROUP: {
910                const char* desc = reader.readString();
911                canvas.beginCommentGroup(desc);
912            } break;
913            case COMMENT: {
914                const char* kywd = reader.readString();
915                const char* value = reader.readString();
916                canvas.addComment(kywd, value);
917            } break;
918            case END_COMMENT_GROUP: {
919                canvas.endCommentGroup();
920            } break;
921            case DRAW_OVAL: {
922                const SkPaint& paint = *getPaint(reader);
923                canvas.drawOval(reader.skipT<SkRect>(), paint);
924            } break;
925            case DRAW_PAINT:
926                canvas.drawPaint(*getPaint(reader));
927                break;
928            case DRAW_PATH: {
929                const SkPaint& paint = *getPaint(reader);
930                canvas.drawPath(getPath(reader), paint);
931            } break;
932            case DRAW_PICTURE:
933                canvas.drawPicture(getPicture(reader));
934                break;
935            case DRAW_POINTS: {
936                const SkPaint& paint = *getPaint(reader);
937                SkCanvas::PointMode mode = (SkCanvas::PointMode)reader.readInt();
938                size_t count = reader.readInt();
939                const SkPoint* pts = (const SkPoint*)reader.skip(sizeof(SkPoint) * count);
940                canvas.drawPoints(mode, count, pts, paint);
941            } break;
942            case DRAW_POS_TEXT: {
943                const SkPaint& paint = *getPaint(reader);
944                getText(reader, &text);
945                size_t points = reader.readInt();
946                const SkPoint* pos = (const SkPoint*)reader.skip(points * sizeof(SkPoint));
947                canvas.drawPosText(text.text(), text.length(), pos, paint);
948            } break;
949            case DRAW_POS_TEXT_TOP_BOTTOM: {
950                const SkPaint& paint = *getPaint(reader);
951                getText(reader, &text);
952                size_t points = reader.readInt();
953                const SkPoint* pos = (const SkPoint*)reader.skip(points * sizeof(SkPoint));
954                const SkScalar top = reader.readScalar();
955                const SkScalar bottom = reader.readScalar();
956                if (!canvas.quickRejectY(top, bottom)) {
957                    canvas.drawPosText(text.text(), text.length(), pos, paint);
958                }
959            } break;
960            case DRAW_POS_TEXT_H: {
961                const SkPaint& paint = *getPaint(reader);
962                getText(reader, &text);
963                size_t xCount = reader.readInt();
964                const SkScalar constY = reader.readScalar();
965                const SkScalar* xpos = (const SkScalar*)reader.skip(xCount * sizeof(SkScalar));
966                canvas.drawPosTextH(text.text(), text.length(), xpos, constY,
967                                    paint);
968            } break;
969            case DRAW_POS_TEXT_H_TOP_BOTTOM: {
970                const SkPaint& paint = *getPaint(reader);
971                getText(reader, &text);
972                size_t xCount = reader.readInt();
973                const SkScalar* xpos = (const SkScalar*)reader.skip((3 + xCount) * sizeof(SkScalar));
974                const SkScalar top = *xpos++;
975                const SkScalar bottom = *xpos++;
976                const SkScalar constY = *xpos++;
977                if (!canvas.quickRejectY(top, bottom)) {
978                    canvas.drawPosTextH(text.text(), text.length(), xpos,
979                                        constY, paint);
980                }
981            } break;
982            case DRAW_RECT: {
983                const SkPaint& paint = *getPaint(reader);
984                canvas.drawRect(reader.skipT<SkRect>(), paint);
985            } break;
986            case DRAW_RRECT: {
987                const SkPaint& paint = *getPaint(reader);
988                SkRRect rrect;
989                reader.readRRect(&rrect);
990                canvas.drawRRect(rrect, paint);
991            } break;
992            case DRAW_SPRITE: {
993                const SkPaint* paint = getPaint(reader);
994                const SkBitmap& bitmap = getBitmap(reader);
995                int left = reader.readInt();
996                int top = reader.readInt();
997                canvas.drawSprite(bitmap, left, top, paint);
998            } break;
999            case DRAW_TEXT: {
1000                const SkPaint& paint = *getPaint(reader);
1001                getText(reader, &text);
1002                SkScalar x = reader.readScalar();
1003                SkScalar y = reader.readScalar();
1004                canvas.drawText(text.text(), text.length(), x, y, paint);
1005            } break;
1006            case DRAW_TEXT_TOP_BOTTOM: {
1007                const SkPaint& paint = *getPaint(reader);
1008                getText(reader, &text);
1009                const SkScalar* ptr = (const SkScalar*)reader.skip(4 * sizeof(SkScalar));
1010                // ptr[0] == x
1011                // ptr[1] == y
1012                // ptr[2] == top
1013                // ptr[3] == bottom
1014                if (!canvas.quickRejectY(ptr[2], ptr[3])) {
1015                    canvas.drawText(text.text(), text.length(), ptr[0], ptr[1],
1016                                    paint);
1017                }
1018            } break;
1019            case DRAW_TEXT_ON_PATH: {
1020                const SkPaint& paint = *getPaint(reader);
1021                getText(reader, &text);
1022                const SkPath& path = getPath(reader);
1023                const SkMatrix* matrix = getMatrix(reader);
1024                canvas.drawTextOnPath(text.text(), text.length(), path,
1025                                      matrix, paint);
1026            } break;
1027            case DRAW_VERTICES: {
1028                SkAutoTUnref<SkXfermode> xfer;
1029                const SkPaint& paint = *getPaint(reader);
1030                DrawVertexFlags flags = (DrawVertexFlags)reader.readInt();
1031                SkCanvas::VertexMode vmode = (SkCanvas::VertexMode)reader.readInt();
1032                int vCount = reader.readInt();
1033                const SkPoint* verts = (const SkPoint*)reader.skip(
1034                                                    vCount * sizeof(SkPoint));
1035                const SkPoint* texs = NULL;
1036                const SkColor* colors = NULL;
1037                const uint16_t* indices = NULL;
1038                int iCount = 0;
1039                if (flags & DRAW_VERTICES_HAS_TEXS) {
1040                    texs = (const SkPoint*)reader.skip(
1041                                                    vCount * sizeof(SkPoint));
1042                }
1043                if (flags & DRAW_VERTICES_HAS_COLORS) {
1044                    colors = (const SkColor*)reader.skip(
1045                                                    vCount * sizeof(SkColor));
1046                }
1047                if (flags & DRAW_VERTICES_HAS_INDICES) {
1048                    iCount = reader.readInt();
1049                    indices = (const uint16_t*)reader.skip(
1050                                                    iCount * sizeof(uint16_t));
1051                }
1052                if (flags & DRAW_VERTICES_HAS_XFER) {
1053                    int mode = reader.readInt();
1054                    if (mode < 0 || mode > SkXfermode::kLastMode) {
1055                        mode = SkXfermode::kModulate_Mode;
1056                    }
1057                    xfer.reset(SkXfermode::Create((SkXfermode::Mode)mode));
1058                }
1059                canvas.drawVertices(vmode, vCount, verts, texs, colors, xfer,
1060                                    indices, iCount, paint);
1061            } break;
1062            case RESTORE:
1063                canvas.restore();
1064                break;
1065            case ROTATE:
1066                canvas.rotate(reader.readScalar());
1067                break;
1068            case SAVE:
1069                canvas.save((SkCanvas::SaveFlags) reader.readInt());
1070                break;
1071            case SAVE_LAYER: {
1072                const SkRect* boundsPtr = getRectPtr(reader);
1073                const SkPaint* paint = getPaint(reader);
1074                canvas.saveLayer(boundsPtr, paint, (SkCanvas::SaveFlags) reader.readInt());
1075                } break;
1076            case SCALE: {
1077                SkScalar sx = reader.readScalar();
1078                SkScalar sy = reader.readScalar();
1079                canvas.scale(sx, sy);
1080            } break;
1081            case SET_MATRIX: {
1082                SkMatrix matrix;
1083                matrix.setConcat(initialMatrix, *getMatrix(reader));
1084                canvas.setMatrix(matrix);
1085            } break;
1086            case SKEW: {
1087                SkScalar sx = reader.readScalar();
1088                SkScalar sy = reader.readScalar();
1089                canvas.skew(sx, sy);
1090            } break;
1091            case TRANSLATE: {
1092                SkScalar dx = reader.readScalar();
1093                SkScalar dy = reader.readScalar();
1094                canvas.translate(dx, dy);
1095            } break;
1096            default:
1097                SkASSERT(0);
1098        }
1099
1100#ifdef SK_DEVELOPER
1101        this->postDraw(opIndex);
1102#endif
1103
1104        if (it.isValid()) {
1105            uint32_t skipTo = it.draw();
1106            if (kDrawComplete == skipTo) {
1107                break;
1108            }
1109            reader.setOffset(skipTo);
1110        }
1111    }
1112
1113#ifdef SPEW_CLIP_SKIPPING
1114    {
1115        size_t size =  skipRect.fSize + skipRRect.fSize + skipPath.fSize + skipRegion.fSize;
1116        SkDebugf("--- Clip skips %d%% rect:%d rrect:%d path:%d rgn:%d\n",
1117             size * 100 / reader.offset(), skipRect.fCount, skipRRect.fCount,
1118                 skipPath.fCount, skipRegion.fCount);
1119    }
1120#endif
1121//    this->dumpSize();
1122}
1123
1124///////////////////////////////////////////////////////////////////////////////
1125
1126#ifdef SK_DEBUG_SIZE
1127int SkPicturePlayback::size(size_t* sizePtr) {
1128    int objects = bitmaps(sizePtr);
1129    objects += paints(sizePtr);
1130    objects += paths(sizePtr);
1131    objects += pictures(sizePtr);
1132    objects += regions(sizePtr);
1133    *sizePtr = fOpData.size();
1134    return objects;
1135}
1136
1137int SkPicturePlayback::bitmaps(size_t* size) {
1138    size_t result = 0;
1139    for (int index = 0; index < fBitmapCount; index++) {
1140     //   const SkBitmap& bitmap = fBitmaps[index];
1141        result += sizeof(SkBitmap); // bitmap->size();
1142    }
1143    *size = result;
1144    return fBitmapCount;
1145}
1146
1147int SkPicturePlayback::paints(size_t* size) {
1148    size_t result = 0;
1149    for (int index = 0; index < fPaintCount; index++) {
1150    //    const SkPaint& paint = fPaints[index];
1151        result += sizeof(SkPaint); // paint->size();
1152    }
1153    *size = result;
1154    return fPaintCount;
1155}
1156
1157int SkPicturePlayback::paths(size_t* size) {
1158    size_t result = 0;
1159    for (int index = 0; index < fPathCount; index++) {
1160        const SkPath& path = fPaths[index];
1161        result += path.flatten(NULL);
1162    }
1163    *size = result;
1164    return fPathCount;
1165}
1166
1167int SkPicturePlayback::regions(size_t* size) {
1168    size_t result = 0;
1169    for (int index = 0; index < fRegionCount; index++) {
1170    //    const SkRegion& region = fRegions[index];
1171        result += sizeof(SkRegion); // region->size();
1172    }
1173    *size = result;
1174    return fRegionCount;
1175}
1176#endif
1177
1178#ifdef SK_DEBUG_DUMP
1179void SkPicturePlayback::dumpBitmap(const SkBitmap& bitmap) const {
1180    char pBuffer[DUMP_BUFFER_SIZE];
1181    char* bufferPtr = pBuffer;
1182    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1183        "BitmapData bitmap%p = {", &bitmap);
1184    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1185        "{kWidth, %d}, ", bitmap.width());
1186    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1187        "{kHeight, %d}, ", bitmap.height());
1188    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1189        "{kRowBytes, %d}, ", bitmap.rowBytes());
1190//        start here;
1191    SkDebugf("%s{0}};\n", pBuffer);
1192}
1193
1194void dumpMatrix(const SkMatrix& matrix) const {
1195    SkMatrix defaultMatrix;
1196    defaultMatrix.reset();
1197    char pBuffer[DUMP_BUFFER_SIZE];
1198    char* bufferPtr = pBuffer;
1199    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1200        "MatrixData matrix%p = {", &matrix);
1201    SkScalar scaleX = matrix.getScaleX();
1202    if (scaleX != defaultMatrix.getScaleX())
1203        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1204            "{kScaleX, %g}, ", SkScalarToFloat(scaleX));
1205    SkScalar scaleY = matrix.getScaleY();
1206    if (scaleY != defaultMatrix.getScaleY())
1207        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1208            "{kScaleY, %g}, ", SkScalarToFloat(scaleY));
1209    SkScalar skewX = matrix.getSkewX();
1210    if (skewX != defaultMatrix.getSkewX())
1211        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1212            "{kSkewX, %g}, ", SkScalarToFloat(skewX));
1213    SkScalar skewY = matrix.getSkewY();
1214    if (skewY != defaultMatrix.getSkewY())
1215        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1216            "{kSkewY, %g}, ", SkScalarToFloat(skewY));
1217    SkScalar translateX = matrix.getTranslateX();
1218    if (translateX != defaultMatrix.getTranslateX())
1219        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1220            "{kTranslateX, %g}, ", SkScalarToFloat(translateX));
1221    SkScalar translateY = matrix.getTranslateY();
1222    if (translateY != defaultMatrix.getTranslateY())
1223        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1224            "{kTranslateY, %g}, ", SkScalarToFloat(translateY));
1225    SkScalar perspX = matrix.getPerspX();
1226    if (perspX != defaultMatrix.getPerspX())
1227        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1228            "{kPerspX, %g}, ", perspX);
1229    SkScalar perspY = matrix.getPerspY();
1230    if (perspY != defaultMatrix.getPerspY())
1231        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1232            "{kPerspY, %g}, ", perspY);
1233    SkDebugf("%s{0}};\n", pBuffer);
1234}
1235
1236void dumpPaint(const SkPaint& paint) const {
1237    SkPaint defaultPaint;
1238    char pBuffer[DUMP_BUFFER_SIZE];
1239    char* bufferPtr = pBuffer;
1240    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1241        "PaintPointers paintPtrs%p = {", &paint);
1242    const SkTypeface* typeface = paint.getTypeface();
1243    if (typeface != defaultPaint.getTypeface())
1244        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1245            "{kTypeface, %p}, ", typeface);
1246    const SkPathEffect* pathEffect = paint.getPathEffect();
1247    if (pathEffect != defaultPaint.getPathEffect())
1248        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1249            "{kPathEffect, %p}, ", pathEffect);
1250    const SkShader* shader = paint.getShader();
1251    if (shader != defaultPaint.getShader())
1252        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1253            "{kShader, %p}, ", shader);
1254    const SkXfermode* xfermode = paint.getXfermode();
1255    if (xfermode != defaultPaint.getXfermode())
1256        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1257            "{kXfermode, %p}, ", xfermode);
1258    const SkMaskFilter* maskFilter = paint.getMaskFilter();
1259    if (maskFilter != defaultPaint.getMaskFilter())
1260        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1261            "{kMaskFilter, %p}, ", maskFilter);
1262    const SkColorFilter* colorFilter = paint.getColorFilter();
1263    if (colorFilter != defaultPaint.getColorFilter())
1264        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1265            "{kColorFilter, %p}, ", colorFilter);
1266    const SkRasterizer* rasterizer = paint.getRasterizer();
1267    if (rasterizer != defaultPaint.getRasterizer())
1268        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1269            "{kRasterizer, %p}, ", rasterizer);
1270    const SkDrawLooper* drawLooper = paint.getLooper();
1271    if (drawLooper != defaultPaint.getLooper())
1272        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1273            "{kDrawLooper, %p}, ", drawLooper);
1274    SkDebugf("%s{0}};\n", pBuffer);
1275    bufferPtr = pBuffer;
1276    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1277        "PaintScalars paintScalars%p = {", &paint);
1278    SkScalar textSize = paint.getTextSize();
1279    if (textSize != defaultPaint.getTextSize())
1280        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1281            "{kTextSize, %g}, ", SkScalarToFloat(textSize));
1282    SkScalar textScaleX = paint.getTextScaleX();
1283    if (textScaleX != defaultPaint.getTextScaleX())
1284        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1285            "{kTextScaleX, %g}, ", SkScalarToFloat(textScaleX));
1286    SkScalar textSkewX = paint.getTextSkewX();
1287    if (textSkewX != defaultPaint.getTextSkewX())
1288        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1289            "{kTextSkewX, %g}, ", SkScalarToFloat(textSkewX));
1290    SkScalar strokeWidth = paint.getStrokeWidth();
1291    if (strokeWidth != defaultPaint.getStrokeWidth())
1292        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1293            "{kStrokeWidth, %g}, ", SkScalarToFloat(strokeWidth));
1294    SkScalar strokeMiter = paint.getStrokeMiter();
1295    if (strokeMiter != defaultPaint.getStrokeMiter())
1296        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1297            "{kStrokeMiter, %g}, ", SkScalarToFloat(strokeMiter));
1298    SkDebugf("%s{0}};\n", pBuffer);
1299    bufferPtr = pBuffer;
1300    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1301        "PaintInts = paintInts%p = {", &paint);
1302    unsigned color = paint.getColor();
1303    if (color != defaultPaint.getColor())
1304        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1305            "{kColor, 0x%x}, ", color);
1306    unsigned flags = paint.getFlags();
1307    if (flags != defaultPaint.getFlags())
1308        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1309            "{kFlags, 0x%x}, ", flags);
1310    int align = paint.getTextAlign();
1311    if (align != defaultPaint.getTextAlign())
1312        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1313            "{kAlign, 0x%x}, ", align);
1314    int strokeCap = paint.getStrokeCap();
1315    if (strokeCap != defaultPaint.getStrokeCap())
1316        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1317            "{kStrokeCap, 0x%x}, ", strokeCap);
1318    int strokeJoin = paint.getStrokeJoin();
1319    if (strokeJoin != defaultPaint.getStrokeJoin())
1320        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1321            "{kAlign, 0x%x}, ", strokeJoin);
1322    int style = paint.getStyle();
1323    if (style != defaultPaint.getStyle())
1324        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1325            "{kStyle, 0x%x}, ", style);
1326    int textEncoding = paint.getTextEncoding();
1327    if (textEncoding != defaultPaint.getTextEncoding())
1328        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1329            "{kTextEncoding, 0x%x}, ", textEncoding);
1330    SkDebugf("%s{0}};\n", pBuffer);
1331
1332    SkDebugf("PaintData paint%p = {paintPtrs%p, paintScalars%p, paintInts%p};\n",
1333        &paint, &paint, &paint, &paint);
1334}
1335
1336void SkPicturePlayback::dumpPath(const SkPath& path) const {
1337    SkDebugf("path dump unimplemented\n");
1338}
1339
1340void SkPicturePlayback::dumpPicture(const SkPicture& picture) const {
1341    SkDebugf("picture dump unimplemented\n");
1342}
1343
1344void SkPicturePlayback::dumpRegion(const SkRegion& region) const {
1345    SkDebugf("region dump unimplemented\n");
1346}
1347
1348int SkPicturePlayback::dumpDrawType(char* bufferPtr, char* buffer, DrawType drawType) {
1349    return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1350        "k%s, ", DrawTypeToString(drawType));
1351}
1352
1353int SkPicturePlayback::dumpInt(char* bufferPtr, char* buffer, char* name) {
1354    return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1355        "%s:%d, ", name, getInt());
1356}
1357
1358int SkPicturePlayback::dumpRect(char* bufferPtr, char* buffer, char* name) {
1359    const SkRect* rect = fReader.skipRect();
1360    return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1361        "%s:{l:%g t:%g r:%g b:%g}, ", name, SkScalarToFloat(rect.fLeft),
1362        SkScalarToFloat(rect.fTop),
1363        SkScalarToFloat(rect.fRight), SkScalarToFloat(rect.fBottom));
1364}
1365
1366int SkPicturePlayback::dumpPoint(char* bufferPtr, char* buffer, char* name) {
1367    SkPoint pt;
1368    getPoint(&pt);
1369    return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1370        "%s:{x:%g y:%g}, ", name, SkScalarToFloat(pt.fX),
1371        SkScalarToFloat(pt.fY));
1372}
1373
1374void SkPicturePlayback::dumpPointArray(char** bufferPtrPtr, char* buffer, int count) {
1375    char* bufferPtr = *bufferPtrPtr;
1376    const SkPoint* pts = (const SkPoint*)fReadStream.getAtPos();
1377    fReadStream.skip(sizeof(SkPoint) * count);
1378    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1379        "count:%d {", count);
1380    for (int index = 0; index < count; index++)
1381        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1382        "{x:%g y:%g}, ", SkScalarToFloat(pts[index].fX),
1383        SkScalarToFloat(pts[index].fY));
1384    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1385        "} ");
1386    *bufferPtrPtr = bufferPtr;
1387}
1388
1389int SkPicturePlayback::dumpPtr(char* bufferPtr, char* buffer, char* name, void* ptr) {
1390    return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1391        "%s:%p, ", name, ptr);
1392}
1393
1394int SkPicturePlayback::dumpRectPtr(char* bufferPtr, char* buffer, char* name) {
1395    char result;
1396    fReadStream.read(&result, sizeof(result));
1397    if (result)
1398        return dumpRect(bufferPtr, buffer, name);
1399    else
1400        return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1401            "%s:NULL, ", name);
1402}
1403
1404int SkPicturePlayback::dumpScalar(char* bufferPtr, char* buffer, char* name) {
1405    return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1406        "%s:%d, ", name, getScalar());
1407}
1408
1409void SkPicturePlayback::dumpText(char** bufferPtrPtr, char* buffer) {
1410    char* bufferPtr = *bufferPtrPtr;
1411    int length = getInt();
1412    bufferPtr += dumpDrawType(bufferPtr, buffer);
1413    fReadStream.skipToAlign4();
1414    char* text = (char*) fReadStream.getAtPos();
1415    fReadStream.skip(length);
1416    bufferPtr += dumpInt(bufferPtr, buffer, "length");
1417    int limit = DUMP_BUFFER_SIZE - (bufferPtr - buffer) - 2;
1418    length >>= 1;
1419    if (limit > length)
1420        limit = length;
1421    if (limit > 0) {
1422        *bufferPtr++ = '"';
1423        for (int index = 0; index < limit; index++) {
1424            *bufferPtr++ = *(unsigned short*) text;
1425            text += sizeof(unsigned short);
1426        }
1427        *bufferPtr++ = '"';
1428    }
1429    *bufferPtrPtr = bufferPtr;
1430}
1431
1432#define DUMP_DRAWTYPE(drawType) \
1433    bufferPtr += dumpDrawType(bufferPtr, buffer, drawType)
1434
1435#define DUMP_INT(name) \
1436    bufferPtr += dumpInt(bufferPtr, buffer, #name)
1437
1438#define DUMP_RECT_PTR(name) \
1439    bufferPtr += dumpRectPtr(bufferPtr, buffer, #name)
1440
1441#define DUMP_POINT(name) \
1442    bufferPtr += dumpRect(bufferPtr, buffer, #name)
1443
1444#define DUMP_RECT(name) \
1445    bufferPtr += dumpRect(bufferPtr, buffer, #name)
1446
1447#define DUMP_POINT_ARRAY(count) \
1448    dumpPointArray(&bufferPtr, buffer, count)
1449
1450#define DUMP_PTR(name, ptr) \
1451    bufferPtr += dumpPtr(bufferPtr, buffer, #name, (void*) ptr)
1452
1453#define DUMP_SCALAR(name) \
1454    bufferPtr += dumpScalar(bufferPtr, buffer, #name)
1455
1456#define DUMP_TEXT() \
1457    dumpText(&bufferPtr, buffer)
1458
1459void SkPicturePlayback::dumpStream() {
1460    SkDebugf("RecordStream stream = {\n");
1461    DrawType drawType;
1462    TextContainer text;
1463    fReadStream.rewind();
1464    char buffer[DUMP_BUFFER_SIZE], * bufferPtr;
1465    while (fReadStream.read(&drawType, sizeof(drawType))) {
1466        bufferPtr = buffer;
1467        DUMP_DRAWTYPE(drawType);
1468        switch (drawType) {
1469            case CLIP_PATH: {
1470                DUMP_PTR(SkPath, &getPath());
1471                DUMP_INT(SkRegion::Op);
1472                DUMP_INT(offsetToRestore);
1473                } break;
1474            case CLIP_REGION: {
1475                DUMP_PTR(SkRegion, &getRegion());
1476                DUMP_INT(SkRegion::Op);
1477                DUMP_INT(offsetToRestore);
1478            } break;
1479            case CLIP_RECT: {
1480                DUMP_RECT(rect);
1481                DUMP_INT(SkRegion::Op);
1482                DUMP_INT(offsetToRestore);
1483                } break;
1484            case CONCAT:
1485                DUMP_PTR(SkMatrix, getMatrix());
1486                break;
1487            case DRAW_BITMAP: {
1488                DUMP_PTR(SkPaint, getPaint());
1489                DUMP_PTR(SkBitmap, &getBitmap());
1490                DUMP_SCALAR(left);
1491                DUMP_SCALAR(top);
1492                } break;
1493            case DRAW_PAINT:
1494                DUMP_PTR(SkPaint, getPaint());
1495                break;
1496            case DRAW_PATH: {
1497                DUMP_PTR(SkPaint, getPaint());
1498                DUMP_PTR(SkPath, &getPath());
1499                } break;
1500            case DRAW_PICTURE: {
1501                DUMP_PTR(SkPicture, &getPicture());
1502                } break;
1503            case DRAW_POINTS: {
1504                DUMP_PTR(SkPaint, getPaint());
1505                (void)getInt(); // PointMode
1506                size_t count = getInt();
1507                fReadStream.skipToAlign4();
1508                DUMP_POINT_ARRAY(count);
1509                } break;
1510            case DRAW_POS_TEXT: {
1511                DUMP_PTR(SkPaint, getPaint());
1512                DUMP_TEXT();
1513                size_t points = getInt();
1514                fReadStream.skipToAlign4();
1515                DUMP_POINT_ARRAY(points);
1516                } break;
1517            case DRAW_POS_TEXT_H: {
1518                DUMP_PTR(SkPaint, getPaint());
1519                DUMP_TEXT();
1520                size_t points = getInt();
1521                fReadStream.skipToAlign4();
1522                DUMP_SCALAR(top);
1523                DUMP_SCALAR(bottom);
1524                DUMP_SCALAR(constY);
1525                DUMP_POINT_ARRAY(points);
1526                } break;
1527            case DRAW_RECT: {
1528                DUMP_PTR(SkPaint, getPaint());
1529                DUMP_RECT(rect);
1530                } break;
1531            case DRAW_SPRITE: {
1532                DUMP_PTR(SkPaint, getPaint());
1533                DUMP_PTR(SkBitmap, &getBitmap());
1534                DUMP_SCALAR(left);
1535                DUMP_SCALAR(top);
1536                } break;
1537            case DRAW_TEXT: {
1538                DUMP_PTR(SkPaint, getPaint());
1539                DUMP_TEXT();
1540                DUMP_SCALAR(x);
1541                DUMP_SCALAR(y);
1542                } break;
1543            case DRAW_TEXT_ON_PATH: {
1544                DUMP_PTR(SkPaint, getPaint());
1545                DUMP_TEXT();
1546                DUMP_PTR(SkPath, &getPath());
1547                DUMP_PTR(SkMatrix, getMatrix());
1548                } break;
1549            case RESTORE:
1550                break;
1551            case ROTATE:
1552                DUMP_SCALAR(rotate);
1553                break;
1554            case SAVE:
1555                DUMP_INT(SkCanvas::SaveFlags);
1556                break;
1557            case SAVE_LAYER: {
1558                DUMP_RECT_PTR(layer);
1559                DUMP_PTR(SkPaint, getPaint());
1560                DUMP_INT(SkCanvas::SaveFlags);
1561                } break;
1562            case SCALE: {
1563                DUMP_SCALAR(sx);
1564                DUMP_SCALAR(sy);
1565                } break;
1566            case SKEW: {
1567                DUMP_SCALAR(sx);
1568                DUMP_SCALAR(sy);
1569                } break;
1570            case TRANSLATE: {
1571                DUMP_SCALAR(dx);
1572                DUMP_SCALAR(dy);
1573                } break;
1574            default:
1575                SkASSERT(0);
1576        }
1577        SkDebugf("%s\n", buffer);
1578    }
1579}
1580
1581void SkPicturePlayback::dump() const {
1582    char pBuffer[DUMP_BUFFER_SIZE];
1583    char* bufferPtr = pBuffer;
1584    int index;
1585    if (fBitmapCount > 0)
1586        SkDebugf("// bitmaps (%d)\n", fBitmapCount);
1587    for (index = 0; index < fBitmapCount; index++) {
1588        const SkBitmap& bitmap = fBitmaps[index];
1589        dumpBitmap(bitmap);
1590    }
1591    if (fBitmapCount > 0)
1592        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1593            "Bitmaps bitmaps = {");
1594    for (index = 0; index < fBitmapCount; index++)
1595        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1596            "bitmap%p, ", &fBitmaps[index]);
1597    if (fBitmapCount > 0)
1598        SkDebugf("%s0};\n", pBuffer);
1599
1600    if (fMatrixCount > 0)
1601        SkDebugf("// matrices (%d)\n", fMatrixCount);
1602    for (index = 0; index < fMatrixCount; index++) {
1603        const SkMatrix& matrix = fMatrices[index];
1604        dumpMatrix(matrix);
1605    }
1606    bufferPtr = pBuffer;
1607    if (fMatrixCount > 0)
1608        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1609            "Matrices matrices = {");
1610    for (index = 0; index < fMatrixCount; index++)
1611        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1612            "matrix%p, ", &fMatrices[index]);
1613    if (fMatrixCount > 0)
1614        SkDebugf("%s0};\n", pBuffer);
1615
1616    if (fPaintCount > 0)
1617        SkDebugf("// paints (%d)\n", fPaintCount);
1618    for (index = 0; index < fPaintCount; index++) {
1619        const SkPaint& paint = fPaints[index];
1620        dumpPaint(paint);
1621    }
1622    bufferPtr = pBuffer;
1623    if (fPaintCount > 0)
1624        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1625            "Paints paints = {");
1626    for (index = 0; index < fPaintCount; index++)
1627        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1628            "paint%p, ", &fPaints[index]);
1629    if (fPaintCount > 0)
1630        SkDebugf("%s0};\n", pBuffer);
1631
1632    for (index = 0; index < fPathCount; index++) {
1633        const SkPath& path = fPaths[index];
1634        dumpPath(path);
1635    }
1636    bufferPtr = pBuffer;
1637    if (fPathCount > 0)
1638        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1639            "Paths paths = {");
1640    for (index = 0; index < fPathCount; index++)
1641        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1642            "path%p, ", &fPaths[index]);
1643    if (fPathCount > 0)
1644        SkDebugf("%s0};\n", pBuffer);
1645
1646    for (index = 0; index < fPictureCount; index++) {
1647        dumpPicture(*fPictureRefs[index]);
1648    }
1649    bufferPtr = pBuffer;
1650    if (fPictureCount > 0)
1651        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1652            "Pictures pictures = {");
1653    for (index = 0; index < fPictureCount; index++)
1654        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1655            "picture%p, ", fPictureRefs[index]);
1656    if (fPictureCount > 0)
1657        SkDebugf("%s0};\n", pBuffer);
1658
1659    for (index = 0; index < fRegionCount; index++) {
1660        const SkRegion& region = fRegions[index];
1661        dumpRegion(region);
1662    }
1663    bufferPtr = pBuffer;
1664    if (fRegionCount > 0)
1665        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1666            "Regions regions = {");
1667    for (index = 0; index < fRegionCount; index++)
1668        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1669            "region%p, ", &fRegions[index]);
1670    if (fRegionCount > 0)
1671        SkDebugf("%s0};\n", pBuffer);
1672
1673    const_cast<SkPicturePlayback*>(this)->dumpStream();
1674}
1675
1676#endif
1677