SkPicturePlayback.cpp revision db0c8753775774aa3f67114491e26ac1be32f38e
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 <new>
9#include "SkBBoxHierarchy.h"
10#include "SkOffsetTable.h"
11#include "SkPicturePlayback.h"
12#include "SkPictureRecord.h"
13#include "SkPictureStateTree.h"
14#include "SkReadBuffer.h"
15#include "SkTypeface.h"
16#include "SkTSort.h"
17#include "SkWriteBuffer.h"
18
19template <typename T> int SafeCount(const T* obj) {
20    return obj ? obj->count() : 0;
21}
22
23/*  Define this to spew out a debug statement whenever we skip the remainder of
24    a save/restore block because a clip... command returned false (empty).
25 */
26#define SPEW_CLIP_SKIPPINGx
27
28SkPicturePlayback::SkPicturePlayback() {
29    this->init();
30}
31
32SkPicturePlayback::SkPicturePlayback(const SkPictureRecord& record, bool deepCopy) {
33#ifdef SK_DEBUG_SIZE
34    size_t overallBytes, bitmapBytes, matricesBytes,
35    paintBytes, pathBytes, pictureBytes, regionBytes;
36    int bitmaps = record.bitmaps(&bitmapBytes);
37    int matrices = record.matrices(&matricesBytes);
38    int paints = record.paints(&paintBytes);
39    int paths = record.paths(&pathBytes);
40    int pictures = record.pictures(&pictureBytes);
41    int regions = record.regions(&regionBytes);
42    SkDebugf("picture record mem used %zd (stream %zd) ", record.size(),
43             record.streamlen());
44    if (bitmaps != 0)
45        SkDebugf("bitmaps size %zd (bitmaps:%d) ", bitmapBytes, bitmaps);
46    if (matrices != 0)
47        SkDebugf("matrices size %zd (matrices:%d) ", matricesBytes, matrices);
48    if (paints != 0)
49        SkDebugf("paints size %zd (paints:%d) ", paintBytes, paints);
50    if (paths != 0)
51        SkDebugf("paths size %zd (paths:%d) ", pathBytes, paths);
52    if (pictures != 0)
53        SkDebugf("pictures size %zd (pictures:%d) ", pictureBytes, pictures);
54    if (regions != 0)
55        SkDebugf("regions size %zd (regions:%d) ", regionBytes, regions);
56    if (record.fPointWrites != 0)
57        SkDebugf("points size %zd (points:%d) ", record.fPointBytes, record.fPointWrites);
58    if (record.fRectWrites != 0)
59        SkDebugf("rects size %zd (rects:%d) ", record.fRectBytes, record.fRectWrites);
60    if (record.fTextWrites != 0)
61        SkDebugf("text size %zd (text strings:%d) ", record.fTextBytes, record.fTextWrites);
62
63    SkDebugf("\n");
64#endif
65#ifdef SK_DEBUG_DUMP
66    record.dumpMatrices();
67    record.dumpPaints();
68#endif
69
70    record.validate(record.writeStream().bytesWritten(), 0);
71    const SkWriter32& writer = record.writeStream();
72    this->init();
73    SkASSERT(!fOpData);
74    if (writer.bytesWritten() == 0) {
75        fOpData = SkData::NewEmpty();
76        return;
77    }
78    fOpData = writer.snapshotAsData();
79
80    fBoundingHierarchy = record.fBoundingHierarchy;
81    fStateTree = record.fStateTree;
82
83    SkSafeRef(fBoundingHierarchy);
84    SkSafeRef(fStateTree);
85
86    if (NULL != fBoundingHierarchy) {
87        fBoundingHierarchy->flushDeferredInserts();
88    }
89
90    // copy over the refcnt dictionary to our reader
91    record.fFlattenableHeap.setupPlaybacks();
92
93    fBitmaps = record.fBitmapHeap->extractBitmaps();
94    fPaints = record.fPaints.unflattenToArray();
95
96    fBitmapHeap.reset(SkSafeRef(record.fBitmapHeap));
97    fPathHeap.reset(SkSafeRef(record.fPathHeap));
98
99    fBitmapUseOffsets.reset(SkSafeRef(record.fBitmapUseOffsets.get()));
100
101    // ensure that the paths bounds are pre-computed
102    if (fPathHeap.get()) {
103        for (int i = 0; i < fPathHeap->count(); i++) {
104            (*fPathHeap)[i].updateBoundsCache();
105        }
106    }
107
108    const SkTDArray<SkPicture* >& pictures = record.getPictureRefs();
109    fPictureCount = pictures.count();
110    if (fPictureCount > 0) {
111        fPictureRefs = SkNEW_ARRAY(SkPicture*, fPictureCount);
112        for (int i = 0; i < fPictureCount; i++) {
113            if (deepCopy) {
114                fPictureRefs[i] = pictures[i]->clone();
115            } else {
116                fPictureRefs[i] = pictures[i];
117                fPictureRefs[i]->ref();
118            }
119        }
120    }
121
122#ifdef SK_DEBUG_SIZE
123    int overall = fPlayback->size(&overallBytes);
124    bitmaps = fPlayback->bitmaps(&bitmapBytes);
125    paints = fPlayback->paints(&paintBytes);
126    paths = fPlayback->paths(&pathBytes);
127    pictures = fPlayback->pictures(&pictureBytes);
128    regions = fPlayback->regions(&regionBytes);
129    SkDebugf("playback size %zd (objects:%d) ", overallBytes, overall);
130    if (bitmaps != 0)
131        SkDebugf("bitmaps size %zd (bitmaps:%d) ", bitmapBytes, bitmaps);
132    if (paints != 0)
133        SkDebugf("paints size %zd (paints:%d) ", paintBytes, paints);
134    if (paths != 0)
135        SkDebugf("paths size %zd (paths:%d) ", pathBytes, paths);
136    if (pictures != 0)
137        SkDebugf("pictures size %zd (pictures:%d) ", pictureBytes, pictures);
138    if (regions != 0)
139        SkDebugf("regions size %zd (regions:%d) ", regionBytes, regions);
140    SkDebugf("\n");
141#endif
142}
143
144static bool needs_deep_copy(const SkPaint& paint) {
145    /*
146     *  These fields are known to be immutable, and so can be shallow-copied
147     *
148     *  getTypeface()
149     *  getAnnotation()
150     *  paint.getColorFilter()
151     *  getXfermode()
152     */
153
154    return paint.getPathEffect() ||
155           paint.getShader() ||
156           paint.getMaskFilter() ||
157           paint.getRasterizer() ||
158           paint.getLooper() ||
159           paint.getImageFilter();
160}
161
162SkPicturePlayback::SkPicturePlayback(const SkPicturePlayback& src, SkPictCopyInfo* deepCopyInfo) {
163    this->init();
164
165    fBitmapHeap.reset(SkSafeRef(src.fBitmapHeap.get()));
166    fPathHeap.reset(SkSafeRef(src.fPathHeap.get()));
167
168    fOpData = SkSafeRef(src.fOpData);
169
170    fBoundingHierarchy = src.fBoundingHierarchy;
171    fStateTree = src.fStateTree;
172
173    SkSafeRef(fBoundingHierarchy);
174    SkSafeRef(fStateTree);
175
176    if (deepCopyInfo) {
177        int paintCount = SafeCount(src.fPaints);
178
179        if (src.fBitmaps) {
180            fBitmaps = SkTRefArray<SkBitmap>::Create(src.fBitmaps->begin(), src.fBitmaps->count());
181        }
182
183        if (!deepCopyInfo->initialized) {
184            /* The alternative to doing this is to have a clone method on the paint and have it make
185             * the deep copy of its internal structures as needed. The holdup to doing that is at
186             * this point we would need to pass the SkBitmapHeap so that we don't unnecessarily
187             * flatten the pixels in a bitmap shader.
188             */
189            deepCopyInfo->paintData.setCount(paintCount);
190
191            /* Use an SkBitmapHeap to avoid flattening bitmaps in shaders. If there already is one,
192             * use it. If this SkPicturePlayback was created from a stream, fBitmapHeap will be
193             * NULL, so create a new one.
194             */
195            if (fBitmapHeap.get() == NULL) {
196                // FIXME: Put this on the stack inside SkPicture::clone. Further, is it possible to
197                // do the rest of this initialization in SkPicture::clone as well?
198                SkBitmapHeap* heap = SkNEW(SkBitmapHeap);
199                deepCopyInfo->controller.setBitmapStorage(heap);
200                heap->unref();
201            } else {
202                deepCopyInfo->controller.setBitmapStorage(fBitmapHeap);
203            }
204
205            SkDEBUGCODE(int heapSize = SafeCount(fBitmapHeap.get());)
206            for (int i = 0; i < paintCount; i++) {
207                if (needs_deep_copy(src.fPaints->at(i))) {
208                    deepCopyInfo->paintData[i] =
209                        SkFlatData::Create<SkPaint::FlatteningTraits>(&deepCopyInfo->controller,
210                                                          src.fPaints->at(i), 0);
211
212                } else {
213                    // this is our sentinel, which we use in the unflatten loop
214                    deepCopyInfo->paintData[i] = NULL;
215                }
216            }
217            SkASSERT(SafeCount(fBitmapHeap.get()) == heapSize);
218
219            // needed to create typeface playback
220            deepCopyInfo->controller.setupPlaybacks();
221            deepCopyInfo->initialized = true;
222        }
223
224        fPaints = SkTRefArray<SkPaint>::Create(paintCount);
225        SkASSERT(deepCopyInfo->paintData.count() == paintCount);
226        SkBitmapHeap* bmHeap = deepCopyInfo->controller.getBitmapHeap();
227        SkTypefacePlayback* tfPlayback = deepCopyInfo->controller.getTypefacePlayback();
228        for (int i = 0; i < paintCount; i++) {
229            if (deepCopyInfo->paintData[i]) {
230                deepCopyInfo->paintData[i]->unflatten<SkPaint::FlatteningTraits>(
231                    &fPaints->writableAt(i), bmHeap, tfPlayback);
232            } else {
233                // needs_deep_copy was false, so just need to assign
234                fPaints->writableAt(i) = src.fPaints->at(i);
235            }
236        }
237
238    } else {
239        fBitmaps = SkSafeRef(src.fBitmaps);
240        fPaints = SkSafeRef(src.fPaints);
241    }
242
243    fPictureCount = src.fPictureCount;
244    fPictureRefs = SkNEW_ARRAY(SkPicture*, fPictureCount);
245    for (int i = 0; i < fPictureCount; i++) {
246        if (deepCopyInfo) {
247            fPictureRefs[i] = src.fPictureRefs[i]->clone();
248        } else {
249            fPictureRefs[i] = src.fPictureRefs[i];
250            fPictureRefs[i]->ref();
251        }
252    }
253}
254
255void SkPicturePlayback::init() {
256    fBitmaps = NULL;
257    fPaints = NULL;
258    fPictureRefs = NULL;
259    fPictureCount = 0;
260    fOpData = NULL;
261    fFactoryPlayback = NULL;
262    fBoundingHierarchy = NULL;
263    fStateTree = NULL;
264    fCachedActiveOps = NULL;
265}
266
267SkPicturePlayback::~SkPicturePlayback() {
268    SkSafeUnref(fOpData);
269
270    SkSafeUnref(fBitmaps);
271    SkSafeUnref(fPaints);
272    SkSafeUnref(fBoundingHierarchy);
273    SkSafeUnref(fStateTree);
274
275    SkDELETE(fCachedActiveOps);
276
277    for (int i = 0; i < fPictureCount; i++) {
278        fPictureRefs[i]->unref();
279    }
280    SkDELETE_ARRAY(fPictureRefs);
281
282    SkDELETE(fFactoryPlayback);
283}
284
285void SkPicturePlayback::dumpSize() const {
286    SkDebugf("--- picture size: ops=%d bitmaps=%d [%d] paints=%d [%d] paths=%d\n",
287             fOpData->size(),
288             SafeCount(fBitmaps), SafeCount(fBitmaps) * sizeof(SkBitmap),
289             SafeCount(fPaints), SafeCount(fPaints) * sizeof(SkPaint),
290             SafeCount(fPathHeap.get()));
291}
292
293bool SkPicturePlayback::containsBitmaps() const {
294    if (fBitmaps && fBitmaps->count() > 0) {
295        return true;
296    }
297    for (int i = 0; i < fPictureCount; ++i) {
298        if (fPictureRefs[i]->willPlayBackBitmaps()) {
299            return true;
300        }
301    }
302    return false;
303}
304
305///////////////////////////////////////////////////////////////////////////////
306///////////////////////////////////////////////////////////////////////////////
307
308#include "SkStream.h"
309
310static void write_tag_size(SkWriteBuffer& buffer, uint32_t tag, uint32_t size) {
311    buffer.writeUInt(tag);
312    buffer.writeUInt(size);
313}
314
315static void write_tag_size(SkWStream* stream, uint32_t tag,  uint32_t size) {
316    stream->write32(tag);
317    stream->write32(size);
318}
319
320static size_t compute_chunk_size(SkFlattenable::Factory* array, int count) {
321    size_t size = 4;  // for 'count'
322
323    for (int i = 0; i < count; i++) {
324        const char* name = SkFlattenable::FactoryToName(array[i]);
325        if (NULL == name || 0 == *name) {
326            size += SkWStream::SizeOfPackedUInt(0);
327        } else {
328            size_t len = strlen(name);
329            size += SkWStream::SizeOfPackedUInt(len);
330            size += len;
331        }
332    }
333
334    return size;
335}
336
337static void write_factories(SkWStream* stream, const SkFactorySet& rec) {
338    int count = rec.count();
339
340    SkAutoSTMalloc<16, SkFlattenable::Factory> storage(count);
341    SkFlattenable::Factory* array = (SkFlattenable::Factory*)storage.get();
342    rec.copyToArray(array);
343
344    size_t size = compute_chunk_size(array, count);
345
346    // TODO: write_tag_size should really take a size_t
347    write_tag_size(stream, SK_PICT_FACTORY_TAG, (uint32_t) size);
348    SkDEBUGCODE(size_t start = stream->bytesWritten());
349    stream->write32(count);
350
351    for (int i = 0; i < count; i++) {
352        const char* name = SkFlattenable::FactoryToName(array[i]);
353//        SkDebugf("---- write factories [%d] %p <%s>\n", i, array[i], name);
354        if (NULL == name || 0 == *name) {
355            stream->writePackedUInt(0);
356        } else {
357            uint32_t len = strlen(name);
358            stream->writePackedUInt(len);
359            stream->write(name, len);
360        }
361    }
362
363    SkASSERT(size == (stream->bytesWritten() - start));
364}
365
366static void write_typefaces(SkWStream* stream, const SkRefCntSet& rec) {
367    int count = rec.count();
368
369    write_tag_size(stream, SK_PICT_TYPEFACE_TAG, count);
370
371    SkAutoSTMalloc<16, SkTypeface*> storage(count);
372    SkTypeface** array = (SkTypeface**)storage.get();
373    rec.copyToArray((SkRefCnt**)array);
374
375    for (int i = 0; i < count; i++) {
376        array[i]->serialize(stream);
377    }
378}
379
380void SkPicturePlayback::flattenToBuffer(SkWriteBuffer& buffer) const {
381    int i, n;
382
383    if ((n = SafeCount(fBitmaps)) > 0) {
384        write_tag_size(buffer, SK_PICT_BITMAP_BUFFER_TAG, n);
385        for (i = 0; i < n; i++) {
386            buffer.writeBitmap((*fBitmaps)[i]);
387        }
388    }
389
390    if ((n = SafeCount(fPaints)) > 0) {
391        write_tag_size(buffer, SK_PICT_PAINT_BUFFER_TAG, n);
392        for (i = 0; i < n; i++) {
393            buffer.writePaint((*fPaints)[i]);
394        }
395    }
396
397    if ((n = SafeCount(fPathHeap.get())) > 0) {
398        write_tag_size(buffer, SK_PICT_PATH_BUFFER_TAG, n);
399        fPathHeap->flatten(buffer);
400    }
401}
402
403void SkPicturePlayback::serialize(SkWStream* stream,
404                                  SkPicture::EncodeBitmap encoder) const {
405    write_tag_size(stream, SK_PICT_READER_TAG, fOpData->size());
406    stream->write(fOpData->bytes(), fOpData->size());
407
408    if (fPictureCount > 0) {
409        write_tag_size(stream, SK_PICT_PICTURE_TAG, fPictureCount);
410        for (int i = 0; i < fPictureCount; i++) {
411            fPictureRefs[i]->serialize(stream, encoder);
412        }
413    }
414
415    // Write some of our data into a writebuffer, and then serialize that
416    // into our stream
417    {
418        SkRefCntSet  typefaceSet;
419        SkFactorySet factSet;
420
421        SkWriteBuffer buffer(SkWriteBuffer::kCrossProcess_Flag);
422        buffer.setTypefaceRecorder(&typefaceSet);
423        buffer.setFactoryRecorder(&factSet);
424        buffer.setBitmapEncoder(encoder);
425
426        this->flattenToBuffer(buffer);
427
428        // We have to write these two sets into the stream *before* we write
429        // the buffer, since parsing that buffer will require that we already
430        // have these sets available to use.
431        write_factories(stream, factSet);
432        write_typefaces(stream, typefaceSet);
433
434        write_tag_size(stream, SK_PICT_BUFFER_SIZE_TAG, buffer.bytesWritten());
435        buffer.writeToStream(stream);
436    }
437
438    stream->write32(SK_PICT_EOF_TAG);
439}
440
441void SkPicturePlayback::flatten(SkWriteBuffer& buffer) const {
442    write_tag_size(buffer, SK_PICT_READER_TAG, fOpData->size());
443    buffer.writeByteArray(fOpData->bytes(), fOpData->size());
444
445    if (fPictureCount > 0) {
446        write_tag_size(buffer, SK_PICT_PICTURE_TAG, fPictureCount);
447        for (int i = 0; i < fPictureCount; i++) {
448            fPictureRefs[i]->flatten(buffer);
449        }
450    }
451
452    // Write this picture playback's data into a writebuffer
453    this->flattenToBuffer(buffer);
454    buffer.write32(SK_PICT_EOF_TAG);
455}
456
457///////////////////////////////////////////////////////////////////////////////
458
459/**
460 *  Return the corresponding SkReadBuffer flags, given a set of
461 *  SkPictInfo flags.
462 */
463static uint32_t pictInfoFlagsToReadBufferFlags(uint32_t pictInfoFlags) {
464    static const struct {
465        uint32_t    fSrc;
466        uint32_t    fDst;
467    } gSD[] = {
468        { SkPictInfo::kCrossProcess_Flag,   SkReadBuffer::kCrossProcess_Flag },
469        { SkPictInfo::kScalarIsFloat_Flag,  SkReadBuffer::kScalarIsFloat_Flag },
470        { SkPictInfo::kPtrIs64Bit_Flag,     SkReadBuffer::kPtrIs64Bit_Flag },
471    };
472
473    uint32_t rbMask = 0;
474    for (size_t i = 0; i < SK_ARRAY_COUNT(gSD); ++i) {
475        if (pictInfoFlags & gSD[i].fSrc) {
476            rbMask |= gSD[i].fDst;
477        }
478    }
479    return rbMask;
480}
481
482bool SkPicturePlayback::parseStreamTag(SkStream* stream, const SkPictInfo& info, uint32_t tag,
483                                       size_t size, SkPicture::InstallPixelRefProc proc) {
484    /*
485     *  By the time we encounter BUFFER_SIZE_TAG, we need to have already seen
486     *  its dependents: FACTORY_TAG and TYPEFACE_TAG. These two are not required
487     *  but if they are present, they need to have been seen before the buffer.
488     *
489     *  We assert that if/when we see either of these, that we have not yet seen
490     *  the buffer tag, because if we have, then its too-late to deal with the
491     *  factories or typefaces.
492     */
493    SkDEBUGCODE(bool haveBuffer = false;)
494
495    switch (tag) {
496        case SK_PICT_READER_TAG: {
497            SkAutoMalloc storage(size);
498            if (stream->read(storage.get(), size) != size) {
499                return false;
500            }
501            SkASSERT(NULL == fOpData);
502            fOpData = SkData::NewFromMalloc(storage.detach(), size);
503        } break;
504        case SK_PICT_FACTORY_TAG: {
505            SkASSERT(!haveBuffer);
506        // Remove this code when v21 and below are no longer supported. At the
507        // same time add a new 'count' variable and use it rather then reusing 'size'.
508#ifndef DISABLE_V21_COMPATIBILITY_CODE
509            if (info.fVersion >= 22) {
510                // in v22 this tag's size represents the size of the chunk in bytes
511                // and the number of factory strings is written out separately
512#endif
513                size = stream->readU32();
514#ifndef DISABLE_V21_COMPATIBILITY_CODE
515            }
516#endif
517            fFactoryPlayback = SkNEW_ARGS(SkFactoryPlayback, (size));
518            for (size_t i = 0; i < size; i++) {
519                SkString str;
520                const size_t len = stream->readPackedUInt();
521                str.resize(len);
522                if (stream->read(str.writable_str(), len) != len) {
523                    return false;
524                }
525                fFactoryPlayback->base()[i] = SkFlattenable::NameToFactory(str.c_str());
526            }
527        } break;
528        case SK_PICT_TYPEFACE_TAG: {
529            SkASSERT(!haveBuffer);
530            fTFPlayback.setCount(size);
531            for (size_t i = 0; i < size; i++) {
532                SkAutoTUnref<SkTypeface> tf(SkTypeface::Deserialize(stream));
533                if (!tf.get()) {    // failed to deserialize
534                    // fTFPlayback asserts it never has a null, so we plop in
535                    // the default here.
536                    tf.reset(SkTypeface::RefDefault());
537                }
538                fTFPlayback.set(i, tf);
539            }
540        } break;
541        case SK_PICT_PICTURE_TAG: {
542            fPictureCount = size;
543            fPictureRefs = SkNEW_ARRAY(SkPicture*, fPictureCount);
544            bool success = true;
545            int i = 0;
546            for ( ; i < fPictureCount; i++) {
547                fPictureRefs[i] = SkPicture::CreateFromStream(stream, proc);
548                if (NULL == fPictureRefs[i]) {
549                    success = false;
550                    break;
551                }
552            }
553            if (!success) {
554                // Delete all of the pictures that were already created (up to but excluding i):
555                for (int j = 0; j < i; j++) {
556                    fPictureRefs[j]->unref();
557                }
558                // Delete the array
559                SkDELETE_ARRAY(fPictureRefs);
560                fPictureCount = 0;
561                return false;
562            }
563        } break;
564        case SK_PICT_BUFFER_SIZE_TAG: {
565            SkAutoMalloc storage(size);
566            if (stream->read(storage.get(), size) != size) {
567                return false;
568            }
569
570            SkReadBuffer buffer(storage.get(), size);
571            buffer.setFlags(pictInfoFlagsToReadBufferFlags(info.fFlags));
572
573            fFactoryPlayback->setupBuffer(buffer);
574            fTFPlayback.setupBuffer(buffer);
575            buffer.setBitmapDecoder(proc);
576
577            while (!buffer.eof()) {
578                tag = buffer.readUInt();
579                size = buffer.readUInt();
580                if (!this->parseBufferTag(buffer, tag, size)) {
581                    return false;
582                }
583            }
584            SkDEBUGCODE(haveBuffer = true;)
585        } break;
586    }
587    return true;    // success
588}
589
590bool SkPicturePlayback::parseBufferTag(SkReadBuffer& buffer,
591                                       uint32_t tag, size_t size) {
592    switch (tag) {
593        case SK_PICT_BITMAP_BUFFER_TAG: {
594            fBitmaps = SkTRefArray<SkBitmap>::Create(size);
595            for (size_t i = 0; i < size; ++i) {
596                SkBitmap* bm = &fBitmaps->writableAt(i);
597                buffer.readBitmap(bm);
598                bm->setImmutable();
599            }
600        } break;
601        case SK_PICT_PAINT_BUFFER_TAG: {
602            fPaints = SkTRefArray<SkPaint>::Create(size);
603            for (size_t i = 0; i < size; ++i) {
604                buffer.readPaint(&fPaints->writableAt(i));
605            }
606        } break;
607        case SK_PICT_PATH_BUFFER_TAG:
608            if (size > 0) {
609                fPathHeap.reset(SkNEW_ARGS(SkPathHeap, (buffer)));
610            }
611            break;
612        case SK_PICT_READER_TAG: {
613            SkAutoMalloc storage(size);
614            if (!buffer.readByteArray(storage.get(), size) ||
615                !buffer.validate(NULL == fOpData)) {
616                return false;
617            }
618            SkASSERT(NULL == fOpData);
619            fOpData = SkData::NewFromMalloc(storage.detach(), size);
620        } break;
621        case SK_PICT_PICTURE_TAG: {
622            if (!buffer.validate((0 == fPictureCount) && (NULL == fPictureRefs))) {
623                return false;
624            }
625            fPictureCount = size;
626            fPictureRefs = SkNEW_ARRAY(SkPicture*, fPictureCount);
627            bool success = true;
628            int i = 0;
629            for ( ; i < fPictureCount; i++) {
630                fPictureRefs[i] = SkPicture::CreateFromBuffer(buffer);
631                if (NULL == fPictureRefs[i]) {
632                    success = false;
633                    break;
634                }
635            }
636            if (!success) {
637                // Delete all of the pictures that were already created (up to but excluding i):
638                for (int j = 0; j < i; j++) {
639                    fPictureRefs[j]->unref();
640                }
641                // Delete the array
642                SkDELETE_ARRAY(fPictureRefs);
643                fPictureCount = 0;
644                return false;
645            }
646        } break;
647        default:
648            // The tag was invalid.
649            return false;
650    }
651    return true;    // success
652}
653
654SkPicturePlayback* SkPicturePlayback::CreateFromStream(SkStream* stream,
655                                                       const SkPictInfo& info,
656                                                       SkPicture::InstallPixelRefProc proc) {
657    SkAutoTDelete<SkPicturePlayback> playback(SkNEW(SkPicturePlayback));
658
659    if (!playback->parseStream(stream, info, proc)) {
660        return NULL;
661    }
662    return playback.detach();
663}
664
665SkPicturePlayback* SkPicturePlayback::CreateFromBuffer(SkReadBuffer& buffer) {
666    SkAutoTDelete<SkPicturePlayback> playback(SkNEW(SkPicturePlayback));
667
668    if (!playback->parseBuffer(buffer)) {
669        return NULL;
670    }
671    return playback.detach();
672}
673
674bool SkPicturePlayback::parseStream(SkStream* stream, const SkPictInfo& info,
675                                    SkPicture::InstallPixelRefProc proc) {
676    for (;;) {
677        uint32_t tag = stream->readU32();
678        if (SK_PICT_EOF_TAG == tag) {
679            break;
680        }
681
682        uint32_t size = stream->readU32();
683        if (!this->parseStreamTag(stream, info, tag, size, proc)) {
684            return false; // we're invalid
685        }
686    }
687    return true;
688}
689
690bool SkPicturePlayback::parseBuffer(SkReadBuffer& buffer) {
691    for (;;) {
692        uint32_t tag = buffer.readUInt();
693        if (SK_PICT_EOF_TAG == tag) {
694            break;
695        }
696
697        uint32_t size = buffer.readUInt();
698        if (!this->parseBufferTag(buffer, tag, size)) {
699            return false; // we're invalid
700        }
701    }
702    return true;
703}
704
705///////////////////////////////////////////////////////////////////////////////
706///////////////////////////////////////////////////////////////////////////////
707
708#ifdef SPEW_CLIP_SKIPPING
709struct SkipClipRec {
710    int     fCount;
711    size_t  fSize;
712
713    SkipClipRec() {
714        fCount = 0;
715        fSize = 0;
716    }
717
718    void recordSkip(size_t bytes) {
719        fCount += 1;
720        fSize += bytes;
721    }
722};
723#endif
724
725#ifdef SK_DEVELOPER
726bool SkPicturePlayback::preDraw(int opIndex, int type) {
727    return false;
728}
729
730void SkPicturePlayback::postDraw(int opIndex) {
731}
732#endif
733
734/*
735 * Read the next op code and chunk size from 'reader'. The returned size
736 * is the entire size of the chunk (including the opcode). Thus, the
737 * offset just prior to calling read_op_and_size + 'size' is the offset
738 * to the next chunk's op code. This also means that the size of a chunk
739 * with no arguments (just an opcode) will be 4.
740 */
741static DrawType read_op_and_size(SkReader32* reader, uint32_t* size) {
742    uint32_t temp = reader->readInt();
743    uint32_t op;
744    if (((uint8_t) temp) == temp) {
745        // old skp file - no size information
746        op = temp;
747        *size = 0;
748    } else {
749        UNPACK_8_24(temp, op, *size);
750        if (MASK_24 == *size) {
751            *size = reader->readInt();
752        }
753    }
754    return (DrawType) op;
755}
756
757// The activeOps parameter is actually "const SkTDArray<SkPictureStateTree::Draw*>&".
758// It represents the operations about to be drawn, as generated by some spatial
759// subdivision helper class. It should already be in 'fOffset' sorted order.
760void SkPicturePlayback::preLoadBitmaps(const SkTDArray<void*>* activeOps) {
761    if ((NULL != activeOps && 0 == activeOps->count()) || NULL == fBitmapUseOffsets) {
762        return;
763    }
764
765    if (NULL == activeOps) {
766        // going to need everything
767        return;
768    }
769
770    SkTDArray<int> active;
771
772    SkAutoTDeleteArray<bool> needToCheck(new bool[fBitmapUseOffsets->numIDs()]);
773    for (int i = 0; i < fBitmapUseOffsets->numIDs(); ++i) {
774        needToCheck.get()[i] = true;
775    }
776
777    uint32_t max = ((SkPictureStateTree::Draw*)(*activeOps)[(*activeOps).count()-1])->fOffset;
778
779    for (int i = 0; i < activeOps->count(); ++i) {
780        SkPictureStateTree::Draw* draw = (SkPictureStateTree::Draw*) (*activeOps)[i];
781
782        for (int j = 0; j < fBitmapUseOffsets->numIDs(); ++j) {
783            if (!needToCheck.get()[j]) {
784                continue;
785            }
786
787            if (!fBitmapUseOffsets->overlap(j, draw->fOffset, max)) {
788                needToCheck.get()[j] = false;
789                continue;
790            }
791
792            if (!fBitmapUseOffsets->includes(j, draw->fOffset)) {
793                continue;
794            }
795
796            *active.append() = j;
797            needToCheck.get()[j] = false;
798        }
799    }
800
801    for (int i = 0; i < active.count(); ++i) {
802        SkDebugf("preload texture %d\n", active[i]);
803    }
804}
805
806uint32_t SkPicturePlayback::CachedOperationList::offset(int index) const {
807    SkASSERT(index < fOps.count());
808    return ((SkPictureStateTree::Draw*)fOps[index])->fOffset;
809}
810
811const SkMatrix& SkPicturePlayback::CachedOperationList::matrix(int index) const {
812    SkASSERT(index < fOps.count());
813    return *((SkPictureStateTree::Draw*)fOps[index])->fMatrix;
814}
815
816const SkPicture::OperationList& SkPicturePlayback::getActiveOps(const SkIRect& query) {
817    if (NULL == fStateTree || NULL == fBoundingHierarchy) {
818        return SkPicture::OperationList::InvalidList();
819    }
820
821    if (NULL == fCachedActiveOps) {
822        fCachedActiveOps = SkNEW(CachedOperationList);
823    }
824
825    if (query == fCachedActiveOps->fCacheQueryRect) {
826        return *fCachedActiveOps;
827    }
828
829    fCachedActiveOps->fOps.rewind();
830
831    fBoundingHierarchy->search(query, &(fCachedActiveOps->fOps));
832
833    SkTQSort<SkPictureStateTree::Draw>(
834        reinterpret_cast<SkPictureStateTree::Draw**>(fCachedActiveOps->fOps.begin()),
835        reinterpret_cast<SkPictureStateTree::Draw**>(fCachedActiveOps->fOps.end()-1));
836
837    fCachedActiveOps->fCacheQueryRect = query;
838    return *fCachedActiveOps;
839}
840
841void SkPicturePlayback::draw(SkCanvas& canvas, SkDrawPictureCallback* callback) {
842#ifdef ENABLE_TIME_DRAW
843    SkAutoTime  at("SkPicture::draw", 50);
844#endif
845
846#ifdef SPEW_CLIP_SKIPPING
847    SkipClipRec skipRect, skipRRect, skipRegion, skipPath, skipCull;
848    int opCount = 0;
849#endif
850
851#ifdef SK_BUILD_FOR_ANDROID
852    SkAutoMutexAcquire autoMutex(fDrawMutex);
853#endif
854
855    // kDrawComplete will be the signal that we have reached the end of
856    // the command stream
857    static const uint32_t kDrawComplete = SK_MaxU32;
858
859    SkReader32 reader(fOpData->bytes(), fOpData->size());
860    TextContainer text;
861    const SkTDArray<void*>* activeOps = NULL;
862
863    if (NULL != fStateTree && NULL != fBoundingHierarchy) {
864        SkRect clipBounds;
865        if (canvas.getClipBounds(&clipBounds)) {
866            SkIRect query;
867            clipBounds.roundOut(&query);
868
869            const SkPicture::OperationList& activeOpsList = this->getActiveOps(query);
870            if (activeOpsList.valid()) {
871                if (0 == activeOpsList.numOps()) {
872                    return;     // nothing to draw
873                }
874
875                // Since the opList is valid we know it is our derived class
876                activeOps = &((const CachedOperationList&)activeOpsList).fOps;
877            }
878        }
879    }
880
881    SkPictureStateTree::Iterator it = (NULL == activeOps) ?
882        SkPictureStateTree::Iterator() :
883        fStateTree->getIterator(*activeOps, &canvas);
884
885    if (it.isValid()) {
886        uint32_t skipTo = it.draw();
887        if (kDrawComplete == skipTo) {
888            return;
889        }
890        reader.setOffset(skipTo);
891    }
892
893    this->preLoadBitmaps(activeOps);
894
895    // Record this, so we can concat w/ it if we encounter a setMatrix()
896    SkMatrix initialMatrix = canvas.getTotalMatrix();
897    int originalSaveCount = canvas.getSaveCount();
898
899#ifdef SK_BUILD_FOR_ANDROID
900    fAbortCurrentPlayback = false;
901#endif
902
903#ifdef SK_DEVELOPER
904    int opIndex = -1;
905#endif
906
907    while (!reader.eof()) {
908        if (callback && callback->abortDrawing()) {
909            canvas.restoreToCount(originalSaveCount);
910            return;
911        }
912#ifdef SK_BUILD_FOR_ANDROID
913        if (fAbortCurrentPlayback) {
914            return;
915        }
916#endif
917
918#ifdef SPEW_CLIP_SKIPPING
919        opCount++;
920#endif
921
922        size_t curOffset = reader.offset();
923        uint32_t size;
924        DrawType op = read_op_and_size(&reader, &size);
925        size_t skipTo = 0;
926        if (NOOP == op) {
927            // NOOPs are to be ignored - do not propagate them any further
928            skipTo = curOffset + size;
929#ifdef SK_DEVELOPER
930        } else {
931            opIndex++;
932            if (this->preDraw(opIndex, op)) {
933                skipTo = curOffset + size;
934            }
935#endif
936        }
937
938        if (0 != skipTo) {
939            if (it.isValid()) {
940                // If using a bounding box hierarchy, advance the state tree
941                // iterator until at or after skipTo
942                uint32_t adjustedSkipTo;
943                do {
944                    adjustedSkipTo = it.draw();
945                } while (adjustedSkipTo < skipTo);
946                skipTo = adjustedSkipTo;
947            }
948            if (kDrawComplete == skipTo) {
949                break;
950            }
951            reader.setOffset(skipTo);
952            continue;
953        }
954
955        switch (op) {
956            case CLIP_PATH: {
957                const SkPath& path = getPath(reader);
958                uint32_t packed = reader.readInt();
959                SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
960                bool doAA = ClipParams_unpackDoAA(packed);
961                size_t offsetToRestore = reader.readInt();
962                SkASSERT(!offsetToRestore || \
963                    offsetToRestore >= reader.offset());
964                canvas.clipPath(path, regionOp, doAA);
965                if (canvas.isClipEmpty() && offsetToRestore) {
966#ifdef SPEW_CLIP_SKIPPING
967                    skipPath.recordSkip(offsetToRestore - reader.offset());
968#endif
969                    reader.setOffset(offsetToRestore);
970                }
971            } break;
972            case CLIP_REGION: {
973                SkRegion region;
974                this->getRegion(reader, &region);
975                uint32_t packed = reader.readInt();
976                SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
977                size_t offsetToRestore = reader.readInt();
978                SkASSERT(!offsetToRestore || \
979                    offsetToRestore >= reader.offset());
980                canvas.clipRegion(region, regionOp);
981                if (canvas.isClipEmpty() && offsetToRestore) {
982#ifdef SPEW_CLIP_SKIPPING
983                    skipRegion.recordSkip(offsetToRestore - reader.offset());
984#endif
985                    reader.setOffset(offsetToRestore);
986                }
987            } break;
988            case CLIP_RECT: {
989                const SkRect& rect = reader.skipT<SkRect>();
990                uint32_t packed = reader.readInt();
991                SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
992                bool doAA = ClipParams_unpackDoAA(packed);
993                size_t offsetToRestore = reader.readInt();
994                SkASSERT(!offsetToRestore || \
995                         offsetToRestore >= reader.offset());
996                canvas.clipRect(rect, regionOp, doAA);
997                if (canvas.isClipEmpty() && offsetToRestore) {
998#ifdef SPEW_CLIP_SKIPPING
999                    skipRect.recordSkip(offsetToRestore - reader.offset());
1000#endif
1001                    reader.setOffset(offsetToRestore);
1002                }
1003            } break;
1004            case CLIP_RRECT: {
1005                SkRRect rrect;
1006                reader.readRRect(&rrect);
1007                uint32_t packed = reader.readInt();
1008                SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
1009                bool doAA = ClipParams_unpackDoAA(packed);
1010                size_t offsetToRestore = reader.readInt();
1011                SkASSERT(!offsetToRestore || \
1012                         offsetToRestore >= reader.offset());
1013                canvas.clipRRect(rrect, regionOp, doAA);
1014                if (canvas.isClipEmpty() && offsetToRestore) {
1015#ifdef SPEW_CLIP_SKIPPING
1016                    skipRRect.recordSkip(offsetToRestore - reader.offset());
1017#endif
1018                    reader.setOffset(offsetToRestore);
1019                }
1020            } break;
1021            case PUSH_CULL: {
1022                const SkRect& cullRect = reader.skipT<SkRect>();
1023                size_t offsetToRestore = reader.readInt();
1024                if (offsetToRestore && canvas.quickReject(cullRect)) {
1025#ifdef SPEW_CLIP_SKIPPING
1026                    skipCull.recordSkip(offsetToRestore - reader.offset());
1027#endif
1028                    reader.setOffset(offsetToRestore);
1029                } else {
1030                    canvas.pushCull(cullRect);
1031                }
1032            } break;
1033            case POP_CULL:
1034                canvas.popCull();
1035                break;
1036            case CONCAT: {
1037                SkMatrix matrix;
1038                this->getMatrix(reader, &matrix);
1039                canvas.concat(matrix);
1040                break;
1041            }
1042            case DRAW_BITMAP: {
1043                const SkPaint* paint = this->getPaint(reader);
1044                const SkBitmap& bitmap = this->getBitmap(reader);
1045                const SkPoint& loc = reader.skipT<SkPoint>();
1046                canvas.drawBitmap(bitmap, loc.fX, loc.fY, paint);
1047            } break;
1048            case DRAW_BITMAP_RECT_TO_RECT: {
1049                const SkPaint* paint = this->getPaint(reader);
1050                const SkBitmap& bitmap = this->getBitmap(reader);
1051                const SkRect* src = this->getRectPtr(reader);   // may be null
1052                const SkRect& dst = reader.skipT<SkRect>();     // required
1053                SkCanvas::DrawBitmapRectFlags flags;
1054                flags = (SkCanvas::DrawBitmapRectFlags) reader.readInt();
1055                canvas.drawBitmapRectToRect(bitmap, src, dst, paint, flags);
1056            } break;
1057            case DRAW_BITMAP_MATRIX: {
1058                const SkPaint* paint = this->getPaint(reader);
1059                const SkBitmap& bitmap = this->getBitmap(reader);
1060                SkMatrix matrix;
1061                this->getMatrix(reader, &matrix);
1062                canvas.drawBitmapMatrix(bitmap, matrix, paint);
1063            } break;
1064            case DRAW_BITMAP_NINE: {
1065                const SkPaint* paint = this->getPaint(reader);
1066                const SkBitmap& bitmap = this->getBitmap(reader);
1067                const SkIRect& src = reader.skipT<SkIRect>();
1068                const SkRect& dst = reader.skipT<SkRect>();
1069                canvas.drawBitmapNine(bitmap, src, dst, paint);
1070            } break;
1071            case DRAW_CLEAR:
1072                canvas.clear(reader.readInt());
1073                break;
1074            case DRAW_DATA: {
1075                size_t length = reader.readInt();
1076                canvas.drawData(reader.skip(length), length);
1077                // skip handles padding the read out to a multiple of 4
1078            } break;
1079            case DRAW_DRRECT: {
1080                const SkPaint& paint = *this->getPaint(reader);
1081                SkRRect outer, inner;
1082                reader.readRRect(&outer);
1083                reader.readRRect(&inner);
1084                canvas.drawDRRect(outer, inner, paint);
1085            } break;
1086            case BEGIN_COMMENT_GROUP: {
1087                const char* desc = reader.readString();
1088                canvas.beginCommentGroup(desc);
1089            } break;
1090            case COMMENT: {
1091                const char* kywd = reader.readString();
1092                const char* value = reader.readString();
1093                canvas.addComment(kywd, value);
1094            } break;
1095            case END_COMMENT_GROUP: {
1096                canvas.endCommentGroup();
1097            } break;
1098            case DRAW_OVAL: {
1099                const SkPaint& paint = *this->getPaint(reader);
1100                canvas.drawOval(reader.skipT<SkRect>(), paint);
1101            } break;
1102            case DRAW_PAINT:
1103                canvas.drawPaint(*this->getPaint(reader));
1104                break;
1105            case DRAW_PATH: {
1106                const SkPaint& paint = *this->getPaint(reader);
1107                canvas.drawPath(getPath(reader), paint);
1108            } break;
1109            case DRAW_PICTURE:
1110                canvas.drawPicture(this->getPicture(reader));
1111                break;
1112            case DRAW_POINTS: {
1113                const SkPaint& paint = *this->getPaint(reader);
1114                SkCanvas::PointMode mode = (SkCanvas::PointMode)reader.readInt();
1115                size_t count = reader.readInt();
1116                const SkPoint* pts = (const SkPoint*)reader.skip(sizeof(SkPoint) * count);
1117                canvas.drawPoints(mode, count, pts, paint);
1118            } break;
1119            case DRAW_POS_TEXT: {
1120                const SkPaint& paint = *this->getPaint(reader);
1121                getText(reader, &text);
1122                size_t points = reader.readInt();
1123                const SkPoint* pos = (const SkPoint*)reader.skip(points * sizeof(SkPoint));
1124                canvas.drawPosText(text.text(), text.length(), pos, paint);
1125            } break;
1126            case DRAW_POS_TEXT_TOP_BOTTOM: {
1127                const SkPaint& paint = *this->getPaint(reader);
1128                getText(reader, &text);
1129                size_t points = reader.readInt();
1130                const SkPoint* pos = (const SkPoint*)reader.skip(points * sizeof(SkPoint));
1131                const SkScalar top = reader.readScalar();
1132                const SkScalar bottom = reader.readScalar();
1133                if (!canvas.quickRejectY(top, bottom)) {
1134                    canvas.drawPosText(text.text(), text.length(), pos, paint);
1135                }
1136            } break;
1137            case DRAW_POS_TEXT_H: {
1138                const SkPaint& paint = *this->getPaint(reader);
1139                getText(reader, &text);
1140                size_t xCount = reader.readInt();
1141                const SkScalar constY = reader.readScalar();
1142                const SkScalar* xpos = (const SkScalar*)reader.skip(xCount * sizeof(SkScalar));
1143                canvas.drawPosTextH(text.text(), text.length(), xpos, constY,
1144                                    paint);
1145            } break;
1146            case DRAW_POS_TEXT_H_TOP_BOTTOM: {
1147                const SkPaint& paint = *this->getPaint(reader);
1148                getText(reader, &text);
1149                size_t xCount = reader.readInt();
1150                const SkScalar* xpos = (const SkScalar*)reader.skip((3 + xCount) * sizeof(SkScalar));
1151                const SkScalar top = *xpos++;
1152                const SkScalar bottom = *xpos++;
1153                const SkScalar constY = *xpos++;
1154                if (!canvas.quickRejectY(top, bottom)) {
1155                    canvas.drawPosTextH(text.text(), text.length(), xpos,
1156                                        constY, paint);
1157                }
1158            } break;
1159            case DRAW_RECT: {
1160                const SkPaint& paint = *this->getPaint(reader);
1161                canvas.drawRect(reader.skipT<SkRect>(), paint);
1162            } break;
1163            case DRAW_RRECT: {
1164                const SkPaint& paint = *this->getPaint(reader);
1165                SkRRect rrect;
1166                reader.readRRect(&rrect);
1167                canvas.drawRRect(rrect, paint);
1168            } break;
1169            case DRAW_SPRITE: {
1170                const SkPaint* paint = this->getPaint(reader);
1171                const SkBitmap& bitmap = this->getBitmap(reader);
1172                int left = reader.readInt();
1173                int top = reader.readInt();
1174                canvas.drawSprite(bitmap, left, top, paint);
1175            } break;
1176            case DRAW_TEXT: {
1177                const SkPaint& paint = *this->getPaint(reader);
1178                this->getText(reader, &text);
1179                SkScalar x = reader.readScalar();
1180                SkScalar y = reader.readScalar();
1181                canvas.drawText(text.text(), text.length(), x, y, paint);
1182            } break;
1183            case DRAW_TEXT_TOP_BOTTOM: {
1184                const SkPaint& paint = *this->getPaint(reader);
1185                this->getText(reader, &text);
1186                const SkScalar* ptr = (const SkScalar*)reader.skip(4 * sizeof(SkScalar));
1187                // ptr[0] == x
1188                // ptr[1] == y
1189                // ptr[2] == top
1190                // ptr[3] == bottom
1191                if (!canvas.quickRejectY(ptr[2], ptr[3])) {
1192                    canvas.drawText(text.text(), text.length(), ptr[0], ptr[1],
1193                                    paint);
1194                }
1195            } break;
1196            case DRAW_TEXT_ON_PATH: {
1197                const SkPaint& paint = *this->getPaint(reader);
1198                getText(reader, &text);
1199                const SkPath& path = this->getPath(reader);
1200                SkMatrix matrix;
1201                this->getMatrix(reader, &matrix);
1202                canvas.drawTextOnPath(text.text(), text.length(), path, &matrix, paint);
1203            } break;
1204            case DRAW_VERTICES: {
1205                SkAutoTUnref<SkXfermode> xfer;
1206                const SkPaint& paint = *this->getPaint(reader);
1207                DrawVertexFlags flags = (DrawVertexFlags)reader.readInt();
1208                SkCanvas::VertexMode vmode = (SkCanvas::VertexMode)reader.readInt();
1209                int vCount = reader.readInt();
1210                const SkPoint* verts = (const SkPoint*)reader.skip(
1211                                                    vCount * sizeof(SkPoint));
1212                const SkPoint* texs = NULL;
1213                const SkColor* colors = NULL;
1214                const uint16_t* indices = NULL;
1215                int iCount = 0;
1216                if (flags & DRAW_VERTICES_HAS_TEXS) {
1217                    texs = (const SkPoint*)reader.skip(
1218                                                    vCount * sizeof(SkPoint));
1219                }
1220                if (flags & DRAW_VERTICES_HAS_COLORS) {
1221                    colors = (const SkColor*)reader.skip(
1222                                                    vCount * sizeof(SkColor));
1223                }
1224                if (flags & DRAW_VERTICES_HAS_INDICES) {
1225                    iCount = reader.readInt();
1226                    indices = (const uint16_t*)reader.skip(
1227                                                    iCount * sizeof(uint16_t));
1228                }
1229                if (flags & DRAW_VERTICES_HAS_XFER) {
1230                    int mode = reader.readInt();
1231                    if (mode < 0 || mode > SkXfermode::kLastMode) {
1232                        mode = SkXfermode::kModulate_Mode;
1233                    }
1234                    xfer.reset(SkXfermode::Create((SkXfermode::Mode)mode));
1235                }
1236                canvas.drawVertices(vmode, vCount, verts, texs, colors, xfer,
1237                                    indices, iCount, paint);
1238            } break;
1239            case RESTORE:
1240                canvas.restore();
1241                break;
1242            case ROTATE:
1243                canvas.rotate(reader.readScalar());
1244                break;
1245            case SAVE:
1246                canvas.save((SkCanvas::SaveFlags) reader.readInt());
1247                break;
1248            case SAVE_LAYER: {
1249                const SkRect* boundsPtr = this->getRectPtr(reader);
1250                const SkPaint* paint = this->getPaint(reader);
1251                canvas.saveLayer(boundsPtr, paint, (SkCanvas::SaveFlags) reader.readInt());
1252                } break;
1253            case SCALE: {
1254                SkScalar sx = reader.readScalar();
1255                SkScalar sy = reader.readScalar();
1256                canvas.scale(sx, sy);
1257            } break;
1258            case SET_MATRIX: {
1259                SkMatrix matrix;
1260                this->getMatrix(reader, &matrix);
1261                matrix.postConcat(initialMatrix);
1262                canvas.setMatrix(matrix);
1263            } break;
1264            case SKEW: {
1265                SkScalar sx = reader.readScalar();
1266                SkScalar sy = reader.readScalar();
1267                canvas.skew(sx, sy);
1268            } break;
1269            case TRANSLATE: {
1270                SkScalar dx = reader.readScalar();
1271                SkScalar dy = reader.readScalar();
1272                canvas.translate(dx, dy);
1273            } break;
1274            default:
1275                SkASSERT(0);
1276        }
1277
1278#ifdef SK_DEVELOPER
1279        this->postDraw(opIndex);
1280#endif
1281
1282        if (it.isValid()) {
1283            uint32_t skipTo = it.draw();
1284            if (kDrawComplete == skipTo) {
1285                break;
1286            }
1287            reader.setOffset(skipTo);
1288        }
1289    }
1290
1291#ifdef SPEW_CLIP_SKIPPING
1292    {
1293        size_t size =  skipRect.fSize + skipRRect.fSize + skipPath.fSize + skipRegion.fSize +
1294                skipCull.fSize;
1295        SkDebugf("--- Clip skips %d%% rect:%d rrect:%d path:%d rgn:%d cull:%d\n",
1296             size * 100 / reader.offset(), skipRect.fCount, skipRRect.fCount,
1297                 skipPath.fCount, skipRegion.fCount, skipCull.fCount);
1298        SkDebugf("--- Total ops: %d\n", opCount);
1299    }
1300#endif
1301//    this->dumpSize();
1302}
1303
1304///////////////////////////////////////////////////////////////////////////////
1305
1306#ifdef SK_DEBUG_SIZE
1307int SkPicturePlayback::size(size_t* sizePtr) {
1308    int objects = bitmaps(sizePtr);
1309    objects += paints(sizePtr);
1310    objects += paths(sizePtr);
1311    objects += pictures(sizePtr);
1312    objects += regions(sizePtr);
1313    *sizePtr = fOpData.size();
1314    return objects;
1315}
1316
1317int SkPicturePlayback::bitmaps(size_t* size) {
1318    size_t result = 0;
1319    for (int index = 0; index < fBitmapCount; index++) {
1320     //   const SkBitmap& bitmap = fBitmaps[index];
1321        result += sizeof(SkBitmap); // bitmap->size();
1322    }
1323    *size = result;
1324    return fBitmapCount;
1325}
1326
1327int SkPicturePlayback::paints(size_t* size) {
1328    size_t result = 0;
1329    for (int index = 0; index < fPaintCount; index++) {
1330    //    const SkPaint& paint = fPaints[index];
1331        result += sizeof(SkPaint); // paint->size();
1332    }
1333    *size = result;
1334    return fPaintCount;
1335}
1336
1337int SkPicturePlayback::paths(size_t* size) {
1338    size_t result = 0;
1339    for (int index = 0; index < fPathCount; index++) {
1340        const SkPath& path = fPaths[index];
1341        result += path.flatten(NULL);
1342    }
1343    *size = result;
1344    return fPathCount;
1345}
1346#endif
1347
1348#ifdef SK_DEBUG_DUMP
1349void SkPicturePlayback::dumpBitmap(const SkBitmap& bitmap) const {
1350    char pBuffer[DUMP_BUFFER_SIZE];
1351    char* bufferPtr = pBuffer;
1352    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1353        "BitmapData bitmap%p = {", &bitmap);
1354    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1355        "{kWidth, %d}, ", bitmap.width());
1356    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1357        "{kHeight, %d}, ", bitmap.height());
1358    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1359        "{kRowBytes, %d}, ", bitmap.rowBytes());
1360//        start here;
1361    SkDebugf("%s{0}};\n", pBuffer);
1362}
1363
1364void dumpMatrix(const SkMatrix& matrix) const {
1365    SkMatrix defaultMatrix;
1366    defaultMatrix.reset();
1367    char pBuffer[DUMP_BUFFER_SIZE];
1368    char* bufferPtr = pBuffer;
1369    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1370        "MatrixData matrix%p = {", &matrix);
1371    SkScalar scaleX = matrix.getScaleX();
1372    if (scaleX != defaultMatrix.getScaleX())
1373        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1374            "{kScaleX, %g}, ", SkScalarToFloat(scaleX));
1375    SkScalar scaleY = matrix.getScaleY();
1376    if (scaleY != defaultMatrix.getScaleY())
1377        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1378            "{kScaleY, %g}, ", SkScalarToFloat(scaleY));
1379    SkScalar skewX = matrix.getSkewX();
1380    if (skewX != defaultMatrix.getSkewX())
1381        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1382            "{kSkewX, %g}, ", SkScalarToFloat(skewX));
1383    SkScalar skewY = matrix.getSkewY();
1384    if (skewY != defaultMatrix.getSkewY())
1385        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1386            "{kSkewY, %g}, ", SkScalarToFloat(skewY));
1387    SkScalar translateX = matrix.getTranslateX();
1388    if (translateX != defaultMatrix.getTranslateX())
1389        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1390            "{kTranslateX, %g}, ", SkScalarToFloat(translateX));
1391    SkScalar translateY = matrix.getTranslateY();
1392    if (translateY != defaultMatrix.getTranslateY())
1393        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1394            "{kTranslateY, %g}, ", SkScalarToFloat(translateY));
1395    SkScalar perspX = matrix.getPerspX();
1396    if (perspX != defaultMatrix.getPerspX())
1397        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1398            "{kPerspX, %g}, ", perspX);
1399    SkScalar perspY = matrix.getPerspY();
1400    if (perspY != defaultMatrix.getPerspY())
1401        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1402            "{kPerspY, %g}, ", perspY);
1403    SkDebugf("%s{0}};\n", pBuffer);
1404}
1405
1406void dumpPaint(const SkPaint& paint) const {
1407    SkPaint defaultPaint;
1408    char pBuffer[DUMP_BUFFER_SIZE];
1409    char* bufferPtr = pBuffer;
1410    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1411        "PaintPointers paintPtrs%p = {", &paint);
1412    const SkTypeface* typeface = paint.getTypeface();
1413    if (typeface != defaultPaint.getTypeface())
1414        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1415            "{kTypeface, %p}, ", typeface);
1416    const SkPathEffect* pathEffect = paint.getPathEffect();
1417    if (pathEffect != defaultPaint.getPathEffect())
1418        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1419            "{kPathEffect, %p}, ", pathEffect);
1420    const SkShader* shader = paint.getShader();
1421    if (shader != defaultPaint.getShader())
1422        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1423            "{kShader, %p}, ", shader);
1424    const SkXfermode* xfermode = paint.getXfermode();
1425    if (xfermode != defaultPaint.getXfermode())
1426        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1427            "{kXfermode, %p}, ", xfermode);
1428    const SkMaskFilter* maskFilter = paint.getMaskFilter();
1429    if (maskFilter != defaultPaint.getMaskFilter())
1430        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1431            "{kMaskFilter, %p}, ", maskFilter);
1432    const SkColorFilter* colorFilter = paint.getColorFilter();
1433    if (colorFilter != defaultPaint.getColorFilter())
1434        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1435            "{kColorFilter, %p}, ", colorFilter);
1436    const SkRasterizer* rasterizer = paint.getRasterizer();
1437    if (rasterizer != defaultPaint.getRasterizer())
1438        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1439            "{kRasterizer, %p}, ", rasterizer);
1440    const SkDrawLooper* drawLooper = paint.getLooper();
1441    if (drawLooper != defaultPaint.getLooper())
1442        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1443            "{kDrawLooper, %p}, ", drawLooper);
1444    SkDebugf("%s{0}};\n", pBuffer);
1445    bufferPtr = pBuffer;
1446    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1447        "PaintScalars paintScalars%p = {", &paint);
1448    SkScalar textSize = paint.getTextSize();
1449    if (textSize != defaultPaint.getTextSize())
1450        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1451            "{kTextSize, %g}, ", SkScalarToFloat(textSize));
1452    SkScalar textScaleX = paint.getTextScaleX();
1453    if (textScaleX != defaultPaint.getTextScaleX())
1454        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1455            "{kTextScaleX, %g}, ", SkScalarToFloat(textScaleX));
1456    SkScalar textSkewX = paint.getTextSkewX();
1457    if (textSkewX != defaultPaint.getTextSkewX())
1458        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1459            "{kTextSkewX, %g}, ", SkScalarToFloat(textSkewX));
1460    SkScalar strokeWidth = paint.getStrokeWidth();
1461    if (strokeWidth != defaultPaint.getStrokeWidth())
1462        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1463            "{kStrokeWidth, %g}, ", SkScalarToFloat(strokeWidth));
1464    SkScalar strokeMiter = paint.getStrokeMiter();
1465    if (strokeMiter != defaultPaint.getStrokeMiter())
1466        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1467            "{kStrokeMiter, %g}, ", SkScalarToFloat(strokeMiter));
1468    SkDebugf("%s{0}};\n", pBuffer);
1469    bufferPtr = pBuffer;
1470    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1471        "PaintInts = paintInts%p = {", &paint);
1472    unsigned color = paint.getColor();
1473    if (color != defaultPaint.getColor())
1474        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1475            "{kColor, 0x%x}, ", color);
1476    unsigned flags = paint.getFlags();
1477    if (flags != defaultPaint.getFlags())
1478        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1479            "{kFlags, 0x%x}, ", flags);
1480    int align = paint.getTextAlign();
1481    if (align != defaultPaint.getTextAlign())
1482        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1483            "{kAlign, 0x%x}, ", align);
1484    int strokeCap = paint.getStrokeCap();
1485    if (strokeCap != defaultPaint.getStrokeCap())
1486        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1487            "{kStrokeCap, 0x%x}, ", strokeCap);
1488    int strokeJoin = paint.getStrokeJoin();
1489    if (strokeJoin != defaultPaint.getStrokeJoin())
1490        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1491            "{kAlign, 0x%x}, ", strokeJoin);
1492    int style = paint.getStyle();
1493    if (style != defaultPaint.getStyle())
1494        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1495            "{kStyle, 0x%x}, ", style);
1496    int textEncoding = paint.getTextEncoding();
1497    if (textEncoding != defaultPaint.getTextEncoding())
1498        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1499            "{kTextEncoding, 0x%x}, ", textEncoding);
1500    SkDebugf("%s{0}};\n", pBuffer);
1501
1502    SkDebugf("PaintData paint%p = {paintPtrs%p, paintScalars%p, paintInts%p};\n",
1503        &paint, &paint, &paint, &paint);
1504}
1505
1506void SkPicturePlayback::dumpPath(const SkPath& path) const {
1507    SkDebugf("path dump unimplemented\n");
1508}
1509
1510void SkPicturePlayback::dumpPicture(const SkPicture& picture) const {
1511    SkDebugf("picture dump unimplemented\n");
1512}
1513
1514void SkPicturePlayback::dumpRegion(const SkRegion& region) const {
1515    SkDebugf("region dump unimplemented\n");
1516}
1517
1518int SkPicturePlayback::dumpDrawType(char* bufferPtr, char* buffer, DrawType drawType) {
1519    return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1520        "k%s, ", DrawTypeToString(drawType));
1521}
1522
1523int SkPicturePlayback::dumpInt(char* bufferPtr, char* buffer, char* name) {
1524    return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1525        "%s:%d, ", name, getInt());
1526}
1527
1528int SkPicturePlayback::dumpRect(char* bufferPtr, char* buffer, char* name) {
1529    const SkRect* rect = fReader.skipRect();
1530    return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1531        "%s:{l:%g t:%g r:%g b:%g}, ", name, SkScalarToFloat(rect.fLeft),
1532        SkScalarToFloat(rect.fTop),
1533        SkScalarToFloat(rect.fRight), SkScalarToFloat(rect.fBottom));
1534}
1535
1536int SkPicturePlayback::dumpPoint(char* bufferPtr, char* buffer, char* name) {
1537    SkPoint pt;
1538    getPoint(&pt);
1539    return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1540        "%s:{x:%g y:%g}, ", name, SkScalarToFloat(pt.fX),
1541        SkScalarToFloat(pt.fY));
1542}
1543
1544void SkPicturePlayback::dumpPointArray(char** bufferPtrPtr, char* buffer, int count) {
1545    char* bufferPtr = *bufferPtrPtr;
1546    const SkPoint* pts = (const SkPoint*)fReadStream.getAtPos();
1547    fReadStream.skip(sizeof(SkPoint) * count);
1548    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1549        "count:%d {", count);
1550    for (int index = 0; index < count; index++)
1551        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1552        "{x:%g y:%g}, ", SkScalarToFloat(pts[index].fX),
1553        SkScalarToFloat(pts[index].fY));
1554    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1555        "} ");
1556    *bufferPtrPtr = bufferPtr;
1557}
1558
1559int SkPicturePlayback::dumpPtr(char* bufferPtr, char* buffer, char* name, void* ptr) {
1560    return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1561        "%s:%p, ", name, ptr);
1562}
1563
1564int SkPicturePlayback::dumpRectPtr(char* bufferPtr, char* buffer, char* name) {
1565    char result;
1566    fReadStream.read(&result, sizeof(result));
1567    if (result)
1568        return dumpRect(bufferPtr, buffer, name);
1569    else
1570        return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1571            "%s:NULL, ", name);
1572}
1573
1574int SkPicturePlayback::dumpScalar(char* bufferPtr, char* buffer, char* name) {
1575    return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
1576        "%s:%d, ", name, getScalar());
1577}
1578
1579void SkPicturePlayback::dumpText(char** bufferPtrPtr, char* buffer) {
1580    char* bufferPtr = *bufferPtrPtr;
1581    int length = getInt();
1582    bufferPtr += dumpDrawType(bufferPtr, buffer);
1583    fReadStream.skipToAlign4();
1584    char* text = (char*) fReadStream.getAtPos();
1585    fReadStream.skip(length);
1586    bufferPtr += dumpInt(bufferPtr, buffer, "length");
1587    int limit = DUMP_BUFFER_SIZE - (bufferPtr - buffer) - 2;
1588    length >>= 1;
1589    if (limit > length)
1590        limit = length;
1591    if (limit > 0) {
1592        *bufferPtr++ = '"';
1593        for (int index = 0; index < limit; index++) {
1594            *bufferPtr++ = *(unsigned short*) text;
1595            text += sizeof(unsigned short);
1596        }
1597        *bufferPtr++ = '"';
1598    }
1599    *bufferPtrPtr = bufferPtr;
1600}
1601
1602#define DUMP_DRAWTYPE(drawType) \
1603    bufferPtr += dumpDrawType(bufferPtr, buffer, drawType)
1604
1605#define DUMP_INT(name) \
1606    bufferPtr += dumpInt(bufferPtr, buffer, #name)
1607
1608#define DUMP_RECT_PTR(name) \
1609    bufferPtr += dumpRectPtr(bufferPtr, buffer, #name)
1610
1611#define DUMP_POINT(name) \
1612    bufferPtr += dumpRect(bufferPtr, buffer, #name)
1613
1614#define DUMP_RECT(name) \
1615    bufferPtr += dumpRect(bufferPtr, buffer, #name)
1616
1617#define DUMP_POINT_ARRAY(count) \
1618    dumpPointArray(&bufferPtr, buffer, count)
1619
1620#define DUMP_PTR(name, ptr) \
1621    bufferPtr += dumpPtr(bufferPtr, buffer, #name, (void*) ptr)
1622
1623#define DUMP_SCALAR(name) \
1624    bufferPtr += dumpScalar(bufferPtr, buffer, #name)
1625
1626#define DUMP_TEXT() \
1627    dumpText(&bufferPtr, buffer)
1628
1629void SkPicturePlayback::dumpStream() {
1630    SkDebugf("RecordStream stream = {\n");
1631    DrawType drawType;
1632    TextContainer text;
1633    fReadStream.rewind();
1634    char buffer[DUMP_BUFFER_SIZE], * bufferPtr;
1635    while (fReadStream.read(&drawType, sizeof(drawType))) {
1636        bufferPtr = buffer;
1637        DUMP_DRAWTYPE(drawType);
1638        switch (drawType) {
1639            case CLIP_PATH: {
1640                DUMP_PTR(SkPath, &getPath());
1641                DUMP_INT(SkRegion::Op);
1642                DUMP_INT(offsetToRestore);
1643                } break;
1644            case CLIP_REGION: {
1645                DUMP_INT(SkRegion::Op);
1646                DUMP_INT(offsetToRestore);
1647            } break;
1648            case CLIP_RECT: {
1649                DUMP_RECT(rect);
1650                DUMP_INT(SkRegion::Op);
1651                DUMP_INT(offsetToRestore);
1652                } break;
1653            case CONCAT:
1654                break;
1655            case DRAW_BITMAP: {
1656                DUMP_PTR(SkPaint, getPaint());
1657                DUMP_PTR(SkBitmap, &getBitmap());
1658                DUMP_SCALAR(left);
1659                DUMP_SCALAR(top);
1660                } break;
1661            case DRAW_PAINT:
1662                DUMP_PTR(SkPaint, getPaint());
1663                break;
1664            case DRAW_PATH: {
1665                DUMP_PTR(SkPaint, getPaint());
1666                DUMP_PTR(SkPath, &getPath());
1667                } break;
1668            case DRAW_PICTURE: {
1669                DUMP_PTR(SkPicture, &getPicture());
1670                } break;
1671            case DRAW_POINTS: {
1672                DUMP_PTR(SkPaint, getPaint());
1673                (void)getInt(); // PointMode
1674                size_t count = getInt();
1675                fReadStream.skipToAlign4();
1676                DUMP_POINT_ARRAY(count);
1677                } break;
1678            case DRAW_POS_TEXT: {
1679                DUMP_PTR(SkPaint, getPaint());
1680                DUMP_TEXT();
1681                size_t points = getInt();
1682                fReadStream.skipToAlign4();
1683                DUMP_POINT_ARRAY(points);
1684                } break;
1685            case DRAW_POS_TEXT_H: {
1686                DUMP_PTR(SkPaint, getPaint());
1687                DUMP_TEXT();
1688                size_t points = getInt();
1689                fReadStream.skipToAlign4();
1690                DUMP_SCALAR(top);
1691                DUMP_SCALAR(bottom);
1692                DUMP_SCALAR(constY);
1693                DUMP_POINT_ARRAY(points);
1694                } break;
1695            case DRAW_RECT: {
1696                DUMP_PTR(SkPaint, getPaint());
1697                DUMP_RECT(rect);
1698                } break;
1699            case DRAW_SPRITE: {
1700                DUMP_PTR(SkPaint, getPaint());
1701                DUMP_PTR(SkBitmap, &getBitmap());
1702                DUMP_SCALAR(left);
1703                DUMP_SCALAR(top);
1704                } break;
1705            case DRAW_TEXT: {
1706                DUMP_PTR(SkPaint, getPaint());
1707                DUMP_TEXT();
1708                DUMP_SCALAR(x);
1709                DUMP_SCALAR(y);
1710                } break;
1711            case DRAW_TEXT_ON_PATH: {
1712                DUMP_PTR(SkPaint, getPaint());
1713                DUMP_TEXT();
1714                DUMP_PTR(SkPath, &getPath());
1715                } break;
1716            case RESTORE:
1717                break;
1718            case ROTATE:
1719                DUMP_SCALAR(rotate);
1720                break;
1721            case SAVE:
1722                DUMP_INT(SkCanvas::SaveFlags);
1723                break;
1724            case SAVE_LAYER: {
1725                DUMP_RECT_PTR(layer);
1726                DUMP_PTR(SkPaint, getPaint());
1727                DUMP_INT(SkCanvas::SaveFlags);
1728                } break;
1729            case SCALE: {
1730                DUMP_SCALAR(sx);
1731                DUMP_SCALAR(sy);
1732                } break;
1733            case SKEW: {
1734                DUMP_SCALAR(sx);
1735                DUMP_SCALAR(sy);
1736                } break;
1737            case TRANSLATE: {
1738                DUMP_SCALAR(dx);
1739                DUMP_SCALAR(dy);
1740                } break;
1741            default:
1742                SkASSERT(0);
1743        }
1744        SkDebugf("%s\n", buffer);
1745    }
1746}
1747
1748void SkPicturePlayback::dump() const {
1749    char pBuffer[DUMP_BUFFER_SIZE];
1750    char* bufferPtr = pBuffer;
1751    int index;
1752    if (fBitmapCount > 0)
1753        SkDebugf("// bitmaps (%d)\n", fBitmapCount);
1754    for (index = 0; index < fBitmapCount; index++) {
1755        const SkBitmap& bitmap = fBitmaps[index];
1756        dumpBitmap(bitmap);
1757    }
1758    if (fBitmapCount > 0)
1759        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1760            "Bitmaps bitmaps = {");
1761    for (index = 0; index < fBitmapCount; index++)
1762        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1763            "bitmap%p, ", &fBitmaps[index]);
1764    if (fBitmapCount > 0)
1765        SkDebugf("%s0};\n", pBuffer);
1766
1767
1768    if (fPaintCount > 0)
1769        SkDebugf("// paints (%d)\n", fPaintCount);
1770    for (index = 0; index < fPaintCount; index++) {
1771        const SkPaint& paint = fPaints[index];
1772        dumpPaint(paint);
1773    }
1774    bufferPtr = pBuffer;
1775    if (fPaintCount > 0)
1776        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1777            "Paints paints = {");
1778    for (index = 0; index < fPaintCount; index++)
1779        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1780            "paint%p, ", &fPaints[index]);
1781    if (fPaintCount > 0)
1782        SkDebugf("%s0};\n", pBuffer);
1783
1784    for (index = 0; index < fPathCount; index++) {
1785        const SkPath& path = fPaths[index];
1786        dumpPath(path);
1787    }
1788    bufferPtr = pBuffer;
1789    if (fPathCount > 0)
1790        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1791            "Paths paths = {");
1792    for (index = 0; index < fPathCount; index++)
1793        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1794            "path%p, ", &fPaths[index]);
1795    if (fPathCount > 0)
1796        SkDebugf("%s0};\n", pBuffer);
1797
1798    for (index = 0; index < fPictureCount; index++) {
1799        dumpPicture(*fPictureRefs[index]);
1800    }
1801    bufferPtr = pBuffer;
1802    if (fPictureCount > 0)
1803        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1804            "Pictures pictures = {");
1805    for (index = 0; index < fPictureCount; index++)
1806        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
1807            "picture%p, ", fPictureRefs[index]);
1808    if (fPictureCount > 0)
1809        SkDebugf("%s0};\n", pBuffer);
1810
1811    const_cast<SkPicturePlayback*>(this)->dumpStream();
1812}
1813
1814#endif
1815