The Tor Browser: gfx/skia/trunk/src/core/SkPicturePlayback.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/core/SkPicturePlayback.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/core/SkPicturePlayback.cpp

Sat, 03 Jan 2015 20:18:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Sat, 03 Jan 2015 20:18:00 +0100
branch: TOR_BUG_3246
changeset 7: 129ffea94266
permissions: -rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include <new>
 #include "SkBBoxHierarchy.h"
 #include "SkOffsetTable.h"
 #include "SkPicturePlayback.h"
 #include "SkPictureRecord.h"
 #include "SkPictureStateTree.h"
 #include "SkReadBuffer.h"
 #include "SkTypeface.h"
 #include "SkTSort.h"
 #include "SkWriteBuffer.h"
 template <typename T> int SafeCount(const T* obj) {
     return obj ? obj->count() : 0;
 }
 /*  Define this to spew out a debug statement whenever we skip the remainder of
     a save/restore block because a clip... command returned false (empty).
  */
 #define SPEW_CLIP_SKIPPINGx
 SkPicturePlayback::SkPicturePlayback() {
     this->init();
 }
 SkPicturePlayback::SkPicturePlayback(const SkPictureRecord& record, bool deepCopy) {
 #ifdef SK_DEBUG_SIZE
     size_t overallBytes, bitmapBytes, matricesBytes,
     paintBytes, pathBytes, pictureBytes, regionBytes;
     int bitmaps = record.bitmaps(&bitmapBytes);
     int matrices = record.matrices(&matricesBytes);
     int paints = record.paints(&paintBytes);
     int paths = record.paths(&pathBytes);
     int pictures = record.pictures(&pictureBytes);
     int regions = record.regions(&regionBytes);
     SkDebugf("picture record mem used %zd (stream %zd) ", record.size(),
              record.streamlen());
     if (bitmaps != 0)
         SkDebugf("bitmaps size %zd (bitmaps:%d) ", bitmapBytes, bitmaps);
     if (matrices != 0)
         SkDebugf("matrices size %zd (matrices:%d) ", matricesBytes, matrices);
     if (paints != 0)
         SkDebugf("paints size %zd (paints:%d) ", paintBytes, paints);
     if (paths != 0)
         SkDebugf("paths size %zd (paths:%d) ", pathBytes, paths);
     if (pictures != 0)
         SkDebugf("pictures size %zd (pictures:%d) ", pictureBytes, pictures);
     if (regions != 0)
         SkDebugf("regions size %zd (regions:%d) ", regionBytes, regions);
     if (record.fPointWrites != 0)
         SkDebugf("points size %zd (points:%d) ", record.fPointBytes, record.fPointWrites);
     if (record.fRectWrites != 0)
         SkDebugf("rects size %zd (rects:%d) ", record.fRectBytes, record.fRectWrites);
     if (record.fTextWrites != 0)
         SkDebugf("text size %zd (text strings:%d) ", record.fTextBytes, record.fTextWrites);
     SkDebugf("\n");
 #endif
 #ifdef SK_DEBUG_DUMP
     record.dumpMatrices();
     record.dumpPaints();
 #endif
     record.validate(record.writeStream().bytesWritten(), 0);
     const SkWriter32& writer = record.writeStream();
     init();
     SkASSERT(!fOpData);
     if (writer.bytesWritten() == 0) {
         fOpData = SkData::NewEmpty();
         return;
     }
     fOpData = writer.snapshotAsData();
     fBoundingHierarchy = record.fBoundingHierarchy;
     fStateTree = record.fStateTree;
     SkSafeRef(fBoundingHierarchy);
     SkSafeRef(fStateTree);
     if (NULL != fBoundingHierarchy) {
         fBoundingHierarchy->flushDeferredInserts();
     }
     // copy over the refcnt dictionary to our reader
     record.fFlattenableHeap.setupPlaybacks();
     fBitmaps = record.fBitmapHeap->extractBitmaps();
     fPaints = record.fPaints.unflattenToArray();
     fBitmapHeap.reset(SkSafeRef(record.fBitmapHeap));
     fPathHeap.reset(SkSafeRef(record.fPathHeap));
     fBitmapUseOffsets.reset(SkSafeRef(record.fBitmapUseOffsets.get()));
     // ensure that the paths bounds are pre-computed
     if (fPathHeap.get()) {
         for (int i = 0; i < fPathHeap->count(); i++) {
             (*fPathHeap)[i].updateBoundsCache();
         }
     }
     const SkTDArray<SkPicture* >& pictures = record.getPictureRefs();
     fPictureCount = pictures.count();
     if (fPictureCount > 0) {
         fPictureRefs = SkNEW_ARRAY(SkPicture*, fPictureCount);
         for (int i = 0; i < fPictureCount; i++) {
             if (deepCopy) {
                 fPictureRefs[i] = pictures[i]->clone();
             } else {
                 fPictureRefs[i] = pictures[i];
                 fPictureRefs[i]->ref();
             }
         }
     }
 #ifdef SK_DEBUG_SIZE
     int overall = fPlayback->size(&overallBytes);
     bitmaps = fPlayback->bitmaps(&bitmapBytes);
     paints = fPlayback->paints(&paintBytes);
     paths = fPlayback->paths(&pathBytes);
     pictures = fPlayback->pictures(&pictureBytes);
     regions = fPlayback->regions(&regionBytes);
     SkDebugf("playback size %zd (objects:%d) ", overallBytes, overall);
     if (bitmaps != 0)
         SkDebugf("bitmaps size %zd (bitmaps:%d) ", bitmapBytes, bitmaps);
     if (paints != 0)
         SkDebugf("paints size %zd (paints:%d) ", paintBytes, paints);
     if (paths != 0)
         SkDebugf("paths size %zd (paths:%d) ", pathBytes, paths);
     if (pictures != 0)
         SkDebugf("pictures size %zd (pictures:%d) ", pictureBytes, pictures);
     if (regions != 0)
         SkDebugf("regions size %zd (regions:%d) ", regionBytes, regions);
     SkDebugf("\n");
 #endif
 }
 static bool needs_deep_copy(const SkPaint& paint) {
     /*
      *  These fields are known to be immutable, and so can be shallow-copied
      *
      *  getTypeface()
      *  getAnnotation()
      *  paint.getColorFilter()
      *  getXfermode()
      */
     return paint.getPathEffect() ||
            paint.getShader() ||
            paint.getMaskFilter() ||
            paint.getRasterizer() ||
            paint.getLooper() ||
            paint.getImageFilter();
 }
 SkPicturePlayback::SkPicturePlayback(const SkPicturePlayback& src, SkPictCopyInfo* deepCopyInfo) {
     this->init();
     fBitmapHeap.reset(SkSafeRef(src.fBitmapHeap.get()));
     fPathHeap.reset(SkSafeRef(src.fPathHeap.get()));
     fOpData = SkSafeRef(src.fOpData);
     fBoundingHierarchy = src.fBoundingHierarchy;
     fStateTree = src.fStateTree;
     SkSafeRef(fBoundingHierarchy);
     SkSafeRef(fStateTree);
     if (deepCopyInfo) {
         int paintCount = SafeCount(src.fPaints);
         if (src.fBitmaps) {
             fBitmaps = SkTRefArray<SkBitmap>::Create(src.fBitmaps->begin(), src.fBitmaps->count());
         }
         if (!deepCopyInfo->initialized) {
             /* The alternative to doing this is to have a clone method on the paint and have it make
              * the deep copy of its internal structures as needed. The holdup to doing that is at
              * this point we would need to pass the SkBitmapHeap so that we don't unnecessarily
              * flatten the pixels in a bitmap shader.
              */
             deepCopyInfo->paintData.setCount(paintCount);
             /* Use an SkBitmapHeap to avoid flattening bitmaps in shaders. If there already is one,
              * use it. If this SkPicturePlayback was created from a stream, fBitmapHeap will be
              * NULL, so create a new one.
              */
             if (fBitmapHeap.get() == NULL) {
                 // FIXME: Put this on the stack inside SkPicture::clone. Further, is it possible to
                 // do the rest of this initialization in SkPicture::clone as well?
                 SkBitmapHeap* heap = SkNEW(SkBitmapHeap);
                 deepCopyInfo->controller.setBitmapStorage(heap);
                 heap->unref();
             } else {
                 deepCopyInfo->controller.setBitmapStorage(fBitmapHeap);
             }
             SkDEBUGCODE(int heapSize = SafeCount(fBitmapHeap.get());)
             for (int i = 0; i < paintCount; i++) {
                 if (needs_deep_copy(src.fPaints->at(i))) {
                     deepCopyInfo->paintData[i] =
                         SkFlatData::Create<SkPaint::FlatteningTraits>(&deepCopyInfo->controller,
                                                           src.fPaints->at(i), 0);
                 } else {
                     // this is our sentinel, which we use in the unflatten loop
                     deepCopyInfo->paintData[i] = NULL;
                 }
             }
             SkASSERT(SafeCount(fBitmapHeap.get()) == heapSize);
             // needed to create typeface playback
             deepCopyInfo->controller.setupPlaybacks();
             deepCopyInfo->initialized = true;
         }
         fPaints = SkTRefArray<SkPaint>::Create(paintCount);
         SkASSERT(deepCopyInfo->paintData.count() == paintCount);
         SkBitmapHeap* bmHeap = deepCopyInfo->controller.getBitmapHeap();
         SkTypefacePlayback* tfPlayback = deepCopyInfo->controller.getTypefacePlayback();
         for (int i = 0; i < paintCount; i++) {
             if (deepCopyInfo->paintData[i]) {
                 deepCopyInfo->paintData[i]->unflatten<SkPaint::FlatteningTraits>(
                     &fPaints->writableAt(i), bmHeap, tfPlayback);
             } else {
                 // needs_deep_copy was false, so just need to assign
                 fPaints->writableAt(i) = src.fPaints->at(i);
             }
         }
     } else {
         fBitmaps = SkSafeRef(src.fBitmaps);
         fPaints = SkSafeRef(src.fPaints);
     }
     fPictureCount = src.fPictureCount;
     fPictureRefs = SkNEW_ARRAY(SkPicture*, fPictureCount);
     for (int i = 0; i < fPictureCount; i++) {
         if (deepCopyInfo) {
             fPictureRefs[i] = src.fPictureRefs[i]->clone();
         } else {
             fPictureRefs[i] = src.fPictureRefs[i];
             fPictureRefs[i]->ref();
         }
     }
 }
 void SkPicturePlayback::init() {
     fBitmaps = NULL;
     fPaints = NULL;
     fPictureRefs = NULL;
     fPictureCount = 0;
     fOpData = NULL;
     fFactoryPlayback = NULL;
     fBoundingHierarchy = NULL;
     fStateTree = NULL;
 }
 SkPicturePlayback::~SkPicturePlayback() {
     SkSafeUnref(fOpData);
     SkSafeUnref(fBitmaps);
     SkSafeUnref(fPaints);
     SkSafeUnref(fBoundingHierarchy);
     SkSafeUnref(fStateTree);
     for (int i = 0; i < fPictureCount; i++) {
         fPictureRefs[i]->unref();
     }
     SkDELETE_ARRAY(fPictureRefs);
     SkDELETE(fFactoryPlayback);
 }
 void SkPicturePlayback::dumpSize() const {
     SkDebugf("--- picture size: ops=%d bitmaps=%d [%d] paints=%d [%d] paths=%d\n",
              fOpData->size(),
              SafeCount(fBitmaps), SafeCount(fBitmaps) * sizeof(SkBitmap),
              SafeCount(fPaints), SafeCount(fPaints) * sizeof(SkPaint),
              SafeCount(fPathHeap.get()));
 }
 bool SkPicturePlayback::containsBitmaps() const {
     if (fBitmaps && fBitmaps->count() > 0) {
         return true;
     }
     for (int i = 0; i < fPictureCount; ++i) {
         if (fPictureRefs[i]->willPlayBackBitmaps()) {
             return true;
         }
     }
     return false;
 }
 ///////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////
 #include "SkStream.h"
 static void write_tag_size(SkWriteBuffer& buffer, uint32_t tag, uint32_t size) {
     buffer.writeUInt(tag);
     buffer.writeUInt(size);
 }
 static void write_tag_size(SkWStream* stream, uint32_t tag,  uint32_t size) {
     stream->write32(tag);
     stream->write32(size);
 }
 static size_t compute_chunk_size(SkFlattenable::Factory* array, int count) {
     size_t size = 4;  // for 'count'
     for (int i = 0; i < count; i++) {
         const char* name = SkFlattenable::FactoryToName(array[i]);
         if (NULL == name || 0 == *name) {
             size += SkWStream::SizeOfPackedUInt(0);
         } else {
             size_t len = strlen(name);
             size += SkWStream::SizeOfPackedUInt(len);
             size += len;
         }
     }
     return size;
 }
 static void write_factories(SkWStream* stream, const SkFactorySet& rec) {
     int count = rec.count();
     SkAutoSTMalloc<16, SkFlattenable::Factory> storage(count);
     SkFlattenable::Factory* array = (SkFlattenable::Factory*)storage.get();
     rec.copyToArray(array);
     size_t size = compute_chunk_size(array, count);
     // TODO: write_tag_size should really take a size_t
     write_tag_size(stream, SK_PICT_FACTORY_TAG, (uint32_t) size);
     SkDEBUGCODE(size_t start = stream->bytesWritten());
     stream->write32(count);
     for (int i = 0; i < count; i++) {
         const char* name = SkFlattenable::FactoryToName(array[i]);
 //        SkDebugf("---- write factories [%d] %p <%s>\n", i, array[i], name);
         if (NULL == name || 0 == *name) {
             stream->writePackedUInt(0);
         } else {
             uint32_t len = strlen(name);
             stream->writePackedUInt(len);
             stream->write(name, len);
         }
     }
     SkASSERT(size == (stream->bytesWritten() - start));
 }
 static void write_typefaces(SkWStream* stream, const SkRefCntSet& rec) {
     int count = rec.count();
     write_tag_size(stream, SK_PICT_TYPEFACE_TAG, count);
     SkAutoSTMalloc<16, SkTypeface*> storage(count);
     SkTypeface** array = (SkTypeface**)storage.get();
     rec.copyToArray((SkRefCnt**)array);
     for (int i = 0; i < count; i++) {
         array[i]->serialize(stream);
     }
 }
 void SkPicturePlayback::flattenToBuffer(SkWriteBuffer& buffer) const {
     int i, n;
     if ((n = SafeCount(fBitmaps)) > 0) {
         write_tag_size(buffer, SK_PICT_BITMAP_BUFFER_TAG, n);
         for (i = 0; i < n; i++) {
             buffer.writeBitmap((*fBitmaps)[i]);
         }
     }
     if ((n = SafeCount(fPaints)) > 0) {
         write_tag_size(buffer, SK_PICT_PAINT_BUFFER_TAG, n);
         for (i = 0; i < n; i++) {
             buffer.writePaint((*fPaints)[i]);
         }
     }
     if ((n = SafeCount(fPathHeap.get())) > 0) {
         write_tag_size(buffer, SK_PICT_PATH_BUFFER_TAG, n);
         fPathHeap->flatten(buffer);
     }
 }
 void SkPicturePlayback::serialize(SkWStream* stream,
                                   SkPicture::EncodeBitmap encoder) const {
     write_tag_size(stream, SK_PICT_READER_TAG, fOpData->size());
     stream->write(fOpData->bytes(), fOpData->size());
     if (fPictureCount > 0) {
         write_tag_size(stream, SK_PICT_PICTURE_TAG, fPictureCount);
         for (int i = 0; i < fPictureCount; i++) {
             fPictureRefs[i]->serialize(stream, encoder);
         }
     }
     // Write some of our data into a writebuffer, and then serialize that
     // into our stream
     {
         SkRefCntSet  typefaceSet;
         SkFactorySet factSet;
         SkWriteBuffer buffer(SkWriteBuffer::kCrossProcess_Flag);
         buffer.setTypefaceRecorder(&typefaceSet);
         buffer.setFactoryRecorder(&factSet);
         buffer.setBitmapEncoder(encoder);
         this->flattenToBuffer(buffer);
         // We have to write these two sets into the stream *before* we write
         // the buffer, since parsing that buffer will require that we already
         // have these sets available to use.
         write_factories(stream, factSet);
         write_typefaces(stream, typefaceSet);
         write_tag_size(stream, SK_PICT_BUFFER_SIZE_TAG, buffer.bytesWritten());
         buffer.writeToStream(stream);
     }
     stream->write32(SK_PICT_EOF_TAG);
 }
 void SkPicturePlayback::flatten(SkWriteBuffer& buffer) const {
     write_tag_size(buffer, SK_PICT_READER_TAG, fOpData->size());
     buffer.writeByteArray(fOpData->bytes(), fOpData->size());
     if (fPictureCount > 0) {
         write_tag_size(buffer, SK_PICT_PICTURE_TAG, fPictureCount);
         for (int i = 0; i < fPictureCount; i++) {
             fPictureRefs[i]->flatten(buffer);
         }
     }
     // Write this picture playback's data into a writebuffer
     this->flattenToBuffer(buffer);
     buffer.write32(SK_PICT_EOF_TAG);
 }
 ///////////////////////////////////////////////////////////////////////////////
 /**
  *  Return the corresponding SkReadBuffer flags, given a set of
  *  SkPictInfo flags.
  */
 static uint32_t pictInfoFlagsToReadBufferFlags(uint32_t pictInfoFlags) {
     static const struct {
         uint32_t    fSrc;
         uint32_t    fDst;
     } gSD[] = {
         { SkPictInfo::kCrossProcess_Flag,   SkReadBuffer::kCrossProcess_Flag },
         { SkPictInfo::kScalarIsFloat_Flag,  SkReadBuffer::kScalarIsFloat_Flag },
         { SkPictInfo::kPtrIs64Bit_Flag,     SkReadBuffer::kPtrIs64Bit_Flag },
     };
     uint32_t rbMask = 0;
     for (size_t i = 0; i < SK_ARRAY_COUNT(gSD); ++i) {
         if (pictInfoFlags & gSD[i].fSrc) {
             rbMask |= gSD[i].fDst;
         }
     }
     return rbMask;
 }
 bool SkPicturePlayback::parseStreamTag(SkStream* stream, const SkPictInfo& info, uint32_t tag,
                                        size_t size, SkPicture::InstallPixelRefProc proc) {
     /*
      *  By the time we encounter BUFFER_SIZE_TAG, we need to have already seen
      *  its dependents: FACTORY_TAG and TYPEFACE_TAG. These two are not required
      *  but if they are present, they need to have been seen before the buffer.
      *
      *  We assert that if/when we see either of these, that we have not yet seen
      *  the buffer tag, because if we have, then its too-late to deal with the
      *  factories or typefaces.
      */
     SkDEBUGCODE(bool haveBuffer = false;)
     switch (tag) {
         case SK_PICT_READER_TAG: {
             SkAutoMalloc storage(size);
             if (stream->read(storage.get(), size) != size) {
                 return false;
             }
             SkASSERT(NULL == fOpData);
             fOpData = SkData::NewFromMalloc(storage.detach(), size);
         } break;
         case SK_PICT_FACTORY_TAG: {
             SkASSERT(!haveBuffer);
         // Remove this code when v21 and below are no longer supported. At the
         // same time add a new 'count' variable and use it rather then reusing 'size'.
 #ifndef DISABLE_V21_COMPATIBILITY_CODE
             if (info.fVersion >= 22) {
                 // in v22 this tag's size represents the size of the chunk in bytes
                 // and the number of factory strings is written out separately
 #endif
                 size = stream->readU32();
 #ifndef DISABLE_V21_COMPATIBILITY_CODE
             }
 #endif
             fFactoryPlayback = SkNEW_ARGS(SkFactoryPlayback, (size));
             for (size_t i = 0; i < size; i++) {
                 SkString str;
                 const size_t len = stream->readPackedUInt();
                 str.resize(len);
                 if (stream->read(str.writable_str(), len) != len) {
                     return false;
                 }
                 fFactoryPlayback->base()[i] = SkFlattenable::NameToFactory(str.c_str());
             }
         } break;
         case SK_PICT_TYPEFACE_TAG: {
             SkASSERT(!haveBuffer);
             fTFPlayback.setCount(size);
             for (size_t i = 0; i < size; i++) {
                 SkAutoTUnref<SkTypeface> tf(SkTypeface::Deserialize(stream));
                 if (!tf.get()) {    // failed to deserialize
                     // fTFPlayback asserts it never has a null, so we plop in
                     // the default here.
                     tf.reset(SkTypeface::RefDefault());
                 }
                 fTFPlayback.set(i, tf);
             }
         } break;
         case SK_PICT_PICTURE_TAG: {
             fPictureCount = size;
             fPictureRefs = SkNEW_ARRAY(SkPicture*, fPictureCount);
             bool success = true;
             int i = 0;
             for ( ; i < fPictureCount; i++) {
                 fPictureRefs[i] = SkPicture::CreateFromStream(stream, proc);
                 if (NULL == fPictureRefs[i]) {
                     success = false;
                     break;
                 }
             }
             if (!success) {
                 // Delete all of the pictures that were already created (up to but excluding i):
                 for (int j = 0; j < i; j++) {
                     fPictureRefs[j]->unref();
                 }
                 // Delete the array
                 SkDELETE_ARRAY(fPictureRefs);
                 fPictureCount = 0;
                 return false;
             }
         } break;
         case SK_PICT_BUFFER_SIZE_TAG: {
             SkAutoMalloc storage(size);
             if (stream->read(storage.get(), size) != size) {
                 return false;
             }
             SkReadBuffer buffer(storage.get(), size);
             buffer.setFlags(pictInfoFlagsToReadBufferFlags(info.fFlags));
             fFactoryPlayback->setupBuffer(buffer);
             fTFPlayback.setupBuffer(buffer);
             buffer.setBitmapDecoder(proc);
             while (!buffer.eof()) {
                 tag = buffer.readUInt();
                 size = buffer.readUInt();
                 if (!this->parseBufferTag(buffer, tag, size)) {
                     return false;
                 }
             }
             SkDEBUGCODE(haveBuffer = true;)
         } break;
     }
     return true;    // success
 }
 bool SkPicturePlayback::parseBufferTag(SkReadBuffer& buffer,
                                        uint32_t tag, size_t size) {
     switch (tag) {
         case SK_PICT_BITMAP_BUFFER_TAG: {
             fBitmaps = SkTRefArray<SkBitmap>::Create(size);
             for (size_t i = 0; i < size; ++i) {
                 SkBitmap* bm = &fBitmaps->writableAt(i);
                 buffer.readBitmap(bm);
                 bm->setImmutable();
             }
         } break;
         case SK_PICT_PAINT_BUFFER_TAG: {
             fPaints = SkTRefArray<SkPaint>::Create(size);
             for (size_t i = 0; i < size; ++i) {
                 buffer.readPaint(&fPaints->writableAt(i));
             }
         } break;
         case SK_PICT_PATH_BUFFER_TAG:
             if (size > 0) {
                 fPathHeap.reset(SkNEW_ARGS(SkPathHeap, (buffer)));
             }
             break;
         case SK_PICT_READER_TAG: {
             SkAutoMalloc storage(size);
             if (!buffer.readByteArray(storage.get(), size) ||
                 !buffer.validate(NULL == fOpData)) {
                 return false;
             }
             SkASSERT(NULL == fOpData);
             fOpData = SkData::NewFromMalloc(storage.detach(), size);
         } break;
         case SK_PICT_PICTURE_TAG: {
             if (!buffer.validate((0 == fPictureCount) && (NULL == fPictureRefs))) {
                 return false;
             }
             fPictureCount = size;
             fPictureRefs = SkNEW_ARRAY(SkPicture*, fPictureCount);
             bool success = true;
             int i = 0;
             for ( ; i < fPictureCount; i++) {
                 fPictureRefs[i] = SkPicture::CreateFromBuffer(buffer);
                 if (NULL == fPictureRefs[i]) {
                     success = false;
                     break;
                 }
             }
             if (!success) {
                 // Delete all of the pictures that were already created (up to but excluding i):
                 for (int j = 0; j < i; j++) {
                     fPictureRefs[j]->unref();
                 }
                 // Delete the array
                 SkDELETE_ARRAY(fPictureRefs);
                 fPictureCount = 0;
                 return false;
             }
         } break;
         default:
             // The tag was invalid.
             return false;
     }
     return true;    // success
 }
 SkPicturePlayback* SkPicturePlayback::CreateFromStream(SkStream* stream,
                                                        const SkPictInfo& info,
                                                        SkPicture::InstallPixelRefProc proc) {
     SkAutoTDelete<SkPicturePlayback> playback(SkNEW(SkPicturePlayback));
     if (!playback->parseStream(stream, info, proc)) {
         return NULL;
     }
     return playback.detach();
 }
 SkPicturePlayback* SkPicturePlayback::CreateFromBuffer(SkReadBuffer& buffer) {
     SkAutoTDelete<SkPicturePlayback> playback(SkNEW(SkPicturePlayback));
     if (!playback->parseBuffer(buffer)) {
         return NULL;
     }
     return playback.detach();
 }
 bool SkPicturePlayback::parseStream(SkStream* stream, const SkPictInfo& info,
                                     SkPicture::InstallPixelRefProc proc) {
     for (;;) {
         uint32_t tag = stream->readU32();
         if (SK_PICT_EOF_TAG == tag) {
             break;
         }
         uint32_t size = stream->readU32();
         if (!this->parseStreamTag(stream, info, tag, size, proc)) {
             return false; // we're invalid
         }
     }
     return true;
 }
 bool SkPicturePlayback::parseBuffer(SkReadBuffer& buffer) {
     for (;;) {
         uint32_t tag = buffer.readUInt();
         if (SK_PICT_EOF_TAG == tag) {
             break;
         }
         uint32_t size = buffer.readUInt();
         if (!this->parseBufferTag(buffer, tag, size)) {
             return false; // we're invalid
         }
     }
     return true;
 }
 ///////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////
 #ifdef SPEW_CLIP_SKIPPING
 struct SkipClipRec {
     int     fCount;
     size_t  fSize;
     SkipClipRec() {
         fCount = 0;
         fSize = 0;
     }
     void recordSkip(size_t bytes) {
         fCount += 1;
         fSize += bytes;
     }
 };
 #endif
 #ifdef SK_DEVELOPER
 bool SkPicturePlayback::preDraw(int opIndex, int type) {
     return false;
 }
 void SkPicturePlayback::postDraw(int opIndex) {
 }
 #endif
 /*
  * Read the next op code and chunk size from 'reader'. The returned size
  * is the entire size of the chunk (including the opcode). Thus, the
  * offset just prior to calling read_op_and_size + 'size' is the offset
  * to the next chunk's op code. This also means that the size of a chunk
  * with no arguments (just an opcode) will be 4.
  */
 static DrawType read_op_and_size(SkReader32* reader, uint32_t* size) {
     uint32_t temp = reader->readInt();
     uint32_t op;
     if (((uint8_t) temp) == temp) {
         // old skp file - no size information
         op = temp;
         *size = 0;
     } else {
         UNPACK_8_24(temp, op, *size);
         if (MASK_24 == *size) {
             *size = reader->readInt();
         }
     }
     return (DrawType) op;
 }
 // The activeOps parameter is actually "const SkTDArray<SkPictureStateTree::Draw*>&".
 // It represents the operations about to be drawn, as generated by some spatial
 // subdivision helper class. It should already be in 'fOffset' sorted order.
 void SkPicturePlayback::preLoadBitmaps(const SkTDArray<void*>& activeOps) {
     if (0 == activeOps.count() || NULL == fBitmapUseOffsets) {
         return;
     }
     SkTDArray<int> active;
     SkAutoTDeleteArray<bool> needToCheck(new bool[fBitmapUseOffsets->numIDs()]);
     for (int i = 0; i < fBitmapUseOffsets->numIDs(); ++i) {
         needToCheck.get()[i] = true;
     }
     uint32_t max = ((SkPictureStateTree::Draw*)activeOps[activeOps.count()-1])->fOffset;
     for (int i = 0; i < activeOps.count(); ++i) {
         SkPictureStateTree::Draw* draw = (SkPictureStateTree::Draw*) activeOps[i];
         for (int j = 0; j < fBitmapUseOffsets->numIDs(); ++j) {
             if (!needToCheck.get()[j]) {
                 continue;
             }
             if (!fBitmapUseOffsets->overlap(j, draw->fOffset, max)) {
                 needToCheck.get()[j] = false;
                 continue;
             }
             if (!fBitmapUseOffsets->includes(j, draw->fOffset)) {
                 continue;
             }
             *active.append() = j;
             needToCheck.get()[j] = false;
         }
     }
     for (int i = 0; i < active.count(); ++i) {
         SkDebugf("preload texture %d\n", active[i]);
     }
 }
 void SkPicturePlayback::draw(SkCanvas& canvas, SkDrawPictureCallback* callback) {
 #ifdef ENABLE_TIME_DRAW
     SkAutoTime  at("SkPicture::draw", 50);
 #endif
 #ifdef SPEW_CLIP_SKIPPING
     SkipClipRec skipRect, skipRRect, skipRegion, skipPath, skipCull;
     int opCount = 0;
 #endif
 #ifdef SK_BUILD_FOR_ANDROID
     SkAutoMutexAcquire autoMutex(fDrawMutex);
 #endif
     // kDrawComplete will be the signal that we have reached the end of
     // the command stream
     static const uint32_t kDrawComplete = SK_MaxU32;
     SkReader32 reader(fOpData->bytes(), fOpData->size());
     TextContainer text;
     SkTDArray<void*> activeOps;
     if (NULL != fStateTree && NULL != fBoundingHierarchy) {
         SkRect clipBounds;
         if (canvas.getClipBounds(&clipBounds)) {
             SkIRect query;
             clipBounds.roundOut(&query);
             fBoundingHierarchy->search(query, &activeOps);
             if (activeOps.count() == 0) {
                 return;
             }
             SkTQSort<SkPictureStateTree::Draw>(
                 reinterpret_cast<SkPictureStateTree::Draw**>(activeOps.begin()),
                 reinterpret_cast<SkPictureStateTree::Draw**>(activeOps.end()-1));
         }
     }
     SkPictureStateTree::Iterator it = (NULL == fStateTree) ?
         SkPictureStateTree::Iterator() :
         fStateTree->getIterator(activeOps, &canvas);
     if (it.isValid()) {
         uint32_t skipTo = it.draw();
         if (kDrawComplete == skipTo) {
             return;
         }
         reader.setOffset(skipTo);
     }
     this->preLoadBitmaps(activeOps);
     // Record this, so we can concat w/ it if we encounter a setMatrix()
     SkMatrix initialMatrix = canvas.getTotalMatrix();
     int originalSaveCount = canvas.getSaveCount();
 #ifdef SK_BUILD_FOR_ANDROID
     fAbortCurrentPlayback = false;
 #endif
 #ifdef SK_DEVELOPER
     int opIndex = -1;
 #endif
     while (!reader.eof()) {
         if (callback && callback->abortDrawing()) {
             canvas.restoreToCount(originalSaveCount);
             return;
         }
 #ifdef SK_BUILD_FOR_ANDROID
         if (fAbortCurrentPlayback) {
             return;
         }
 #endif
 #ifdef SPEW_CLIP_SKIPPING
         opCount++;
 #endif
         size_t curOffset = reader.offset();
         uint32_t size;
         DrawType op = read_op_and_size(&reader, &size);
         size_t skipTo = 0;
         if (NOOP == op) {
             // NOOPs are to be ignored - do not propagate them any further
             skipTo = curOffset + size;
 #ifdef SK_DEVELOPER
         } else {
             opIndex++;
             if (this->preDraw(opIndex, op)) {
                 skipTo = curOffset + size;
             }
 #endif
         }
         if (0 != skipTo) {
             if (it.isValid()) {
                 // If using a bounding box hierarchy, advance the state tree
                 // iterator until at or after skipTo
                 uint32_t adjustedSkipTo;
                 do {
                     adjustedSkipTo = it.draw();
                 } while (adjustedSkipTo < skipTo);
                 skipTo = adjustedSkipTo;
             }
             if (kDrawComplete == skipTo) {
                 break;
             }
             reader.setOffset(skipTo);
             continue;
         }
         switch (op) {
             case CLIP_PATH: {
                 const SkPath& path = getPath(reader);
                 uint32_t packed = reader.readInt();
                 SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
                 bool doAA = ClipParams_unpackDoAA(packed);
                 size_t offsetToRestore = reader.readInt();
                 SkASSERT(!offsetToRestore || \
                     offsetToRestore >= reader.offset());
                 canvas.clipPath(path, regionOp, doAA);
                 if (canvas.isClipEmpty() && offsetToRestore) {
 #ifdef SPEW_CLIP_SKIPPING
                     skipPath.recordSkip(offsetToRestore - reader.offset());
 #endif
                     reader.setOffset(offsetToRestore);
                 }
             } break;
             case CLIP_REGION: {
                 SkRegion region;
                 this->getRegion(reader, &region);
                 uint32_t packed = reader.readInt();
                 SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
                 size_t offsetToRestore = reader.readInt();
                 SkASSERT(!offsetToRestore || \
                     offsetToRestore >= reader.offset());
                 canvas.clipRegion(region, regionOp);
                 if (canvas.isClipEmpty() && offsetToRestore) {
 #ifdef SPEW_CLIP_SKIPPING
                     skipRegion.recordSkip(offsetToRestore - reader.offset());
 #endif
                     reader.setOffset(offsetToRestore);
                 }
             } break;
             case CLIP_RECT: {
                 const SkRect& rect = reader.skipT<SkRect>();
                 uint32_t packed = reader.readInt();
                 SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
                 bool doAA = ClipParams_unpackDoAA(packed);
                 size_t offsetToRestore = reader.readInt();
                 SkASSERT(!offsetToRestore || \
                          offsetToRestore >= reader.offset());
                 canvas.clipRect(rect, regionOp, doAA);
                 if (canvas.isClipEmpty() && offsetToRestore) {
 #ifdef SPEW_CLIP_SKIPPING
                     skipRect.recordSkip(offsetToRestore - reader.offset());
 #endif
                     reader.setOffset(offsetToRestore);
                 }
             } break;
             case CLIP_RRECT: {
                 SkRRect rrect;
                 reader.readRRect(&rrect);
                 uint32_t packed = reader.readInt();
                 SkRegion::Op regionOp = ClipParams_unpackRegionOp(packed);
                 bool doAA = ClipParams_unpackDoAA(packed);
                 size_t offsetToRestore = reader.readInt();
                 SkASSERT(!offsetToRestore || \
                          offsetToRestore >= reader.offset());
                 canvas.clipRRect(rrect, regionOp, doAA);
                 if (canvas.isClipEmpty() && offsetToRestore) {
 #ifdef SPEW_CLIP_SKIPPING
                     skipRRect.recordSkip(offsetToRestore - reader.offset());
 #endif
                     reader.setOffset(offsetToRestore);
                 }
             } break;
             case PUSH_CULL: {
                 const SkRect& cullRect = reader.skipT<SkRect>();
                 size_t offsetToRestore = reader.readInt();
                 if (offsetToRestore && canvas.quickReject(cullRect)) {
 #ifdef SPEW_CLIP_SKIPPING
                     skipCull.recordSkip(offsetToRestore - reader.offset());
 #endif
                     reader.setOffset(offsetToRestore);
                 } else {
                     canvas.pushCull(cullRect);
                 }
             } break;
             case POP_CULL:
                 canvas.popCull();
                 break;
             case CONCAT: {
                 SkMatrix matrix;
                 this->getMatrix(reader, &matrix);
                 canvas.concat(matrix);
                 break;
             }
             case DRAW_BITMAP: {
                 const SkPaint* paint = this->getPaint(reader);
                 const SkBitmap& bitmap = this->getBitmap(reader);
                 const SkPoint& loc = reader.skipT<SkPoint>();
                 canvas.drawBitmap(bitmap, loc.fX, loc.fY, paint);
             } break;
             case DRAW_BITMAP_RECT_TO_RECT: {
                 const SkPaint* paint = this->getPaint(reader);
                 const SkBitmap& bitmap = this->getBitmap(reader);
                 const SkRect* src = this->getRectPtr(reader);   // may be null
                 const SkRect& dst = reader.skipT<SkRect>();     // required
                 SkCanvas::DrawBitmapRectFlags flags;
                 flags = (SkCanvas::DrawBitmapRectFlags) reader.readInt();
                 canvas.drawBitmapRectToRect(bitmap, src, dst, paint, flags);
             } break;
             case DRAW_BITMAP_MATRIX: {
                 const SkPaint* paint = this->getPaint(reader);
                 const SkBitmap& bitmap = this->getBitmap(reader);
                 SkMatrix matrix;
                 this->getMatrix(reader, &matrix);
                 canvas.drawBitmapMatrix(bitmap, matrix, paint);
             } break;
             case DRAW_BITMAP_NINE: {
                 const SkPaint* paint = this->getPaint(reader);
                 const SkBitmap& bitmap = this->getBitmap(reader);
                 const SkIRect& src = reader.skipT<SkIRect>();
                 const SkRect& dst = reader.skipT<SkRect>();
                 canvas.drawBitmapNine(bitmap, src, dst, paint);
             } break;
             case DRAW_CLEAR:
                 canvas.clear(reader.readInt());
                 break;
             case DRAW_DATA: {
                 size_t length = reader.readInt();
                 canvas.drawData(reader.skip(length), length);
                 // skip handles padding the read out to a multiple of 4
             } break;
             case DRAW_DRRECT: {
                 const SkPaint& paint = *this->getPaint(reader);
                 SkRRect outer, inner;
                 reader.readRRect(&outer);
                 reader.readRRect(&inner);
                 canvas.drawDRRect(outer, inner, paint);
             } break;
             case BEGIN_COMMENT_GROUP: {
                 const char* desc = reader.readString();
                 canvas.beginCommentGroup(desc);
             } break;
             case COMMENT: {
                 const char* kywd = reader.readString();
                 const char* value = reader.readString();
                 canvas.addComment(kywd, value);
             } break;
             case END_COMMENT_GROUP: {
                 canvas.endCommentGroup();
             } break;
             case DRAW_OVAL: {
                 const SkPaint& paint = *this->getPaint(reader);
                 canvas.drawOval(reader.skipT<SkRect>(), paint);
             } break;
             case DRAW_PAINT:
                 canvas.drawPaint(*this->getPaint(reader));
                 break;
             case DRAW_PATH: {
                 const SkPaint& paint = *this->getPaint(reader);
                 canvas.drawPath(getPath(reader), paint);
             } break;
             case DRAW_PICTURE:
                 canvas.drawPicture(this->getPicture(reader));
                 break;
             case DRAW_POINTS: {
                 const SkPaint& paint = *this->getPaint(reader);
                 SkCanvas::PointMode mode = (SkCanvas::PointMode)reader.readInt();
                 size_t count = reader.readInt();
                 const SkPoint* pts = (const SkPoint*)reader.skip(sizeof(SkPoint) * count);
                 canvas.drawPoints(mode, count, pts, paint);
             } break;
             case DRAW_POS_TEXT: {
                 const SkPaint& paint = *this->getPaint(reader);
                 getText(reader, &text);
                 size_t points = reader.readInt();
                 const SkPoint* pos = (const SkPoint*)reader.skip(points * sizeof(SkPoint));
                 canvas.drawPosText(text.text(), text.length(), pos, paint);
             } break;
             case DRAW_POS_TEXT_TOP_BOTTOM: {
                 const SkPaint& paint = *this->getPaint(reader);
                 getText(reader, &text);
                 size_t points = reader.readInt();
                 const SkPoint* pos = (const SkPoint*)reader.skip(points * sizeof(SkPoint));
                 const SkScalar top = reader.readScalar();
                 const SkScalar bottom = reader.readScalar();
                 if (!canvas.quickRejectY(top, bottom)) {
                     canvas.drawPosText(text.text(), text.length(), pos, paint);
                 }
             } break;
             case DRAW_POS_TEXT_H: {
                 const SkPaint& paint = *this->getPaint(reader);
                 getText(reader, &text);
                 size_t xCount = reader.readInt();
                 const SkScalar constY = reader.readScalar();
                 const SkScalar* xpos = (const SkScalar*)reader.skip(xCount * sizeof(SkScalar));
                 canvas.drawPosTextH(text.text(), text.length(), xpos, constY,
                                     paint);
             } break;
             case DRAW_POS_TEXT_H_TOP_BOTTOM: {
                 const SkPaint& paint = *this->getPaint(reader);
                 getText(reader, &text);
                 size_t xCount = reader.readInt();
                 const SkScalar* xpos = (const SkScalar*)reader.skip((3 + xCount) * sizeof(SkScalar));
                 const SkScalar top = *xpos++;
                 const SkScalar bottom = *xpos++;
                 const SkScalar constY = *xpos++;
                 if (!canvas.quickRejectY(top, bottom)) {
                     canvas.drawPosTextH(text.text(), text.length(), xpos,
                                         constY, paint);
                 }
             } break;
             case DRAW_RECT: {
                 const SkPaint& paint = *this->getPaint(reader);
                 canvas.drawRect(reader.skipT<SkRect>(), paint);
             } break;
             case DRAW_RRECT: {
                 const SkPaint& paint = *this->getPaint(reader);
                 SkRRect rrect;
                 reader.readRRect(&rrect);
                 canvas.drawRRect(rrect, paint);
             } break;
             case DRAW_SPRITE: {
                 const SkPaint* paint = this->getPaint(reader);
                 const SkBitmap& bitmap = this->getBitmap(reader);
                 int left = reader.readInt();
                 int top = reader.readInt();
                 canvas.drawSprite(bitmap, left, top, paint);
             } break;
             case DRAW_TEXT: {
                 const SkPaint& paint = *this->getPaint(reader);
                 this->getText(reader, &text);
                 SkScalar x = reader.readScalar();
                 SkScalar y = reader.readScalar();
                 canvas.drawText(text.text(), text.length(), x, y, paint);
             } break;
             case DRAW_TEXT_TOP_BOTTOM: {
                 const SkPaint& paint = *this->getPaint(reader);
                 this->getText(reader, &text);
                 const SkScalar* ptr = (const SkScalar*)reader.skip(4 * sizeof(SkScalar));
                 // ptr[0] == x
                 // ptr[1] == y
                 // ptr[2] == top
                 // ptr[3] == bottom
                 if (!canvas.quickRejectY(ptr[2], ptr[3])) {
                     canvas.drawText(text.text(), text.length(), ptr[0], ptr[1],
                                     paint);
                 }
             } break;
             case DRAW_TEXT_ON_PATH: {
                 const SkPaint& paint = *this->getPaint(reader);
                 getText(reader, &text);
                 const SkPath& path = this->getPath(reader);
                 SkMatrix matrix;
                 this->getMatrix(reader, &matrix);
                 canvas.drawTextOnPath(text.text(), text.length(), path, &matrix, paint);
             } break;
             case DRAW_VERTICES: {
                 SkAutoTUnref<SkXfermode> xfer;
                 const SkPaint& paint = *this->getPaint(reader);
                 DrawVertexFlags flags = (DrawVertexFlags)reader.readInt();
                 SkCanvas::VertexMode vmode = (SkCanvas::VertexMode)reader.readInt();
                 int vCount = reader.readInt();
                 const SkPoint* verts = (const SkPoint*)reader.skip(
                                                     vCount * sizeof(SkPoint));
                 const SkPoint* texs = NULL;
                 const SkColor* colors = NULL;
                 const uint16_t* indices = NULL;
                 int iCount = 0;
                 if (flags & DRAW_VERTICES_HAS_TEXS) {
                     texs = (const SkPoint*)reader.skip(
                                                     vCount * sizeof(SkPoint));
                 }
                 if (flags & DRAW_VERTICES_HAS_COLORS) {
                     colors = (const SkColor*)reader.skip(
                                                     vCount * sizeof(SkColor));
                 }
                 if (flags & DRAW_VERTICES_HAS_INDICES) {
                     iCount = reader.readInt();
                     indices = (const uint16_t*)reader.skip(
                                                     iCount * sizeof(uint16_t));
                 }
                 if (flags & DRAW_VERTICES_HAS_XFER) {
                     int mode = reader.readInt();
                     if (mode < 0 || mode > SkXfermode::kLastMode) {
                         mode = SkXfermode::kModulate_Mode;
                     }
                     xfer.reset(SkXfermode::Create((SkXfermode::Mode)mode));
                 }
                 canvas.drawVertices(vmode, vCount, verts, texs, colors, xfer,
                                     indices, iCount, paint);
             } break;
             case RESTORE:
                 canvas.restore();
                 break;
             case ROTATE:
                 canvas.rotate(reader.readScalar());
                 break;
             case SAVE:
                 canvas.save((SkCanvas::SaveFlags) reader.readInt());
                 break;
             case SAVE_LAYER: {
                 const SkRect* boundsPtr = this->getRectPtr(reader);
                 const SkPaint* paint = this->getPaint(reader);
                 canvas.saveLayer(boundsPtr, paint, (SkCanvas::SaveFlags) reader.readInt());
                 } break;
             case SCALE: {
                 SkScalar sx = reader.readScalar();
                 SkScalar sy = reader.readScalar();
                 canvas.scale(sx, sy);
             } break;
             case SET_MATRIX: {
                 SkMatrix matrix;
                 this->getMatrix(reader, &matrix);
                 matrix.postConcat(initialMatrix);
                 canvas.setMatrix(matrix);
             } break;
             case SKEW: {
                 SkScalar sx = reader.readScalar();
                 SkScalar sy = reader.readScalar();
                 canvas.skew(sx, sy);
             } break;
             case TRANSLATE: {
                 SkScalar dx = reader.readScalar();
                 SkScalar dy = reader.readScalar();
                 canvas.translate(dx, dy);
             } break;
             default:
                 SkASSERT(0);
         }
 #ifdef SK_DEVELOPER
         this->postDraw(opIndex);
 #endif
         if (it.isValid()) {
             uint32_t skipTo = it.draw();
             if (kDrawComplete == skipTo) {
                 break;
             }
             reader.setOffset(skipTo);
         }
     }
 #ifdef SPEW_CLIP_SKIPPING
     {
         size_t size =  skipRect.fSize + skipRRect.fSize + skipPath.fSize + skipRegion.fSize +
                 skipCull.fSize;
         SkDebugf("--- Clip skips %d%% rect:%d rrect:%d path:%d rgn:%d cull:%d\n",
              size * 100 / reader.offset(), skipRect.fCount, skipRRect.fCount,
                  skipPath.fCount, skipRegion.fCount, skipCull.fCount);
         SkDebugf("--- Total ops: %d\n", opCount);
     }
 #endif
 //    this->dumpSize();
 }
 ///////////////////////////////////////////////////////////////////////////////
 #ifdef SK_DEBUG_SIZE
 int SkPicturePlayback::size(size_t* sizePtr) {
     int objects = bitmaps(sizePtr);
     objects += paints(sizePtr);
     objects += paths(sizePtr);
     objects += pictures(sizePtr);
     objects += regions(sizePtr);
     *sizePtr = fOpData.size();
     return objects;
 }
 int SkPicturePlayback::bitmaps(size_t* size) {
     size_t result = 0;
     for (int index = 0; index < fBitmapCount; index++) {
      //   const SkBitmap& bitmap = fBitmaps[index];
         result += sizeof(SkBitmap); // bitmap->size();
     }
     *size = result;
     return fBitmapCount;
 }
 int SkPicturePlayback::paints(size_t* size) {
     size_t result = 0;
     for (int index = 0; index < fPaintCount; index++) {
     //    const SkPaint& paint = fPaints[index];
         result += sizeof(SkPaint); // paint->size();
     }
     *size = result;
     return fPaintCount;
 }
 int SkPicturePlayback::paths(size_t* size) {
     size_t result = 0;
     for (int index = 0; index < fPathCount; index++) {
         const SkPath& path = fPaths[index];
         result += path.flatten(NULL);
     }
     *size = result;
     return fPathCount;
 }
 #endif
 #ifdef SK_DEBUG_DUMP
 void SkPicturePlayback::dumpBitmap(const SkBitmap& bitmap) const {
     char pBuffer[DUMP_BUFFER_SIZE];
     char* bufferPtr = pBuffer;
     bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
         "BitmapData bitmap%p = {", &bitmap);
     bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
         "{kWidth, %d}, ", bitmap.width());
     bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
         "{kHeight, %d}, ", bitmap.height());
     bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
         "{kRowBytes, %d}, ", bitmap.rowBytes());
 //        start here;
     SkDebugf("%s{0}};\n", pBuffer);
 }
 void dumpMatrix(const SkMatrix& matrix) const {
     SkMatrix defaultMatrix;
     defaultMatrix.reset();
     char pBuffer[DUMP_BUFFER_SIZE];
     char* bufferPtr = pBuffer;
     bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
         "MatrixData matrix%p = {", &matrix);
     SkScalar scaleX = matrix.getScaleX();
     if (scaleX != defaultMatrix.getScaleX())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kScaleX, %g}, ", SkScalarToFloat(scaleX));
     SkScalar scaleY = matrix.getScaleY();
     if (scaleY != defaultMatrix.getScaleY())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kScaleY, %g}, ", SkScalarToFloat(scaleY));
     SkScalar skewX = matrix.getSkewX();
     if (skewX != defaultMatrix.getSkewX())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kSkewX, %g}, ", SkScalarToFloat(skewX));
     SkScalar skewY = matrix.getSkewY();
     if (skewY != defaultMatrix.getSkewY())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kSkewY, %g}, ", SkScalarToFloat(skewY));
     SkScalar translateX = matrix.getTranslateX();
     if (translateX != defaultMatrix.getTranslateX())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kTranslateX, %g}, ", SkScalarToFloat(translateX));
     SkScalar translateY = matrix.getTranslateY();
     if (translateY != defaultMatrix.getTranslateY())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kTranslateY, %g}, ", SkScalarToFloat(translateY));
     SkScalar perspX = matrix.getPerspX();
     if (perspX != defaultMatrix.getPerspX())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kPerspX, %g}, ", perspX);
     SkScalar perspY = matrix.getPerspY();
     if (perspY != defaultMatrix.getPerspY())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kPerspY, %g}, ", perspY);
     SkDebugf("%s{0}};\n", pBuffer);
 }
 void dumpPaint(const SkPaint& paint) const {
     SkPaint defaultPaint;
     char pBuffer[DUMP_BUFFER_SIZE];
     char* bufferPtr = pBuffer;
     bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
         "PaintPointers paintPtrs%p = {", &paint);
     const SkTypeface* typeface = paint.getTypeface();
     if (typeface != defaultPaint.getTypeface())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kTypeface, %p}, ", typeface);
     const SkPathEffect* pathEffect = paint.getPathEffect();
     if (pathEffect != defaultPaint.getPathEffect())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kPathEffect, %p}, ", pathEffect);
     const SkShader* shader = paint.getShader();
     if (shader != defaultPaint.getShader())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kShader, %p}, ", shader);
     const SkXfermode* xfermode = paint.getXfermode();
     if (xfermode != defaultPaint.getXfermode())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kXfermode, %p}, ", xfermode);
     const SkMaskFilter* maskFilter = paint.getMaskFilter();
     if (maskFilter != defaultPaint.getMaskFilter())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kMaskFilter, %p}, ", maskFilter);
     const SkColorFilter* colorFilter = paint.getColorFilter();
     if (colorFilter != defaultPaint.getColorFilter())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kColorFilter, %p}, ", colorFilter);
     const SkRasterizer* rasterizer = paint.getRasterizer();
     if (rasterizer != defaultPaint.getRasterizer())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kRasterizer, %p}, ", rasterizer);
     const SkDrawLooper* drawLooper = paint.getLooper();
     if (drawLooper != defaultPaint.getLooper())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kDrawLooper, %p}, ", drawLooper);
     SkDebugf("%s{0}};\n", pBuffer);
     bufferPtr = pBuffer;
     bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
         "PaintScalars paintScalars%p = {", &paint);
     SkScalar textSize = paint.getTextSize();
     if (textSize != defaultPaint.getTextSize())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kTextSize, %g}, ", SkScalarToFloat(textSize));
     SkScalar textScaleX = paint.getTextScaleX();
     if (textScaleX != defaultPaint.getTextScaleX())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kTextScaleX, %g}, ", SkScalarToFloat(textScaleX));
     SkScalar textSkewX = paint.getTextSkewX();
     if (textSkewX != defaultPaint.getTextSkewX())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kTextSkewX, %g}, ", SkScalarToFloat(textSkewX));
     SkScalar strokeWidth = paint.getStrokeWidth();
     if (strokeWidth != defaultPaint.getStrokeWidth())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kStrokeWidth, %g}, ", SkScalarToFloat(strokeWidth));
     SkScalar strokeMiter = paint.getStrokeMiter();
     if (strokeMiter != defaultPaint.getStrokeMiter())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kStrokeMiter, %g}, ", SkScalarToFloat(strokeMiter));
     SkDebugf("%s{0}};\n", pBuffer);
     bufferPtr = pBuffer;
     bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
         "PaintInts = paintInts%p = {", &paint);
     unsigned color = paint.getColor();
     if (color != defaultPaint.getColor())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kColor, 0x%x}, ", color);
     unsigned flags = paint.getFlags();
     if (flags != defaultPaint.getFlags())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kFlags, 0x%x}, ", flags);
     int align = paint.getTextAlign();
     if (align != defaultPaint.getTextAlign())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kAlign, 0x%x}, ", align);
     int strokeCap = paint.getStrokeCap();
     if (strokeCap != defaultPaint.getStrokeCap())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kStrokeCap, 0x%x}, ", strokeCap);
     int strokeJoin = paint.getStrokeJoin();
     if (strokeJoin != defaultPaint.getStrokeJoin())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kAlign, 0x%x}, ", strokeJoin);
     int style = paint.getStyle();
     if (style != defaultPaint.getStyle())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kStyle, 0x%x}, ", style);
     int textEncoding = paint.getTextEncoding();
     if (textEncoding != defaultPaint.getTextEncoding())
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "{kTextEncoding, 0x%x}, ", textEncoding);
     SkDebugf("%s{0}};\n", pBuffer);
     SkDebugf("PaintData paint%p = {paintPtrs%p, paintScalars%p, paintInts%p};\n",
         &paint, &paint, &paint, &paint);
 }
 void SkPicturePlayback::dumpPath(const SkPath& path) const {
     SkDebugf("path dump unimplemented\n");
 }
 void SkPicturePlayback::dumpPicture(const SkPicture& picture) const {
     SkDebugf("picture dump unimplemented\n");
 }
 void SkPicturePlayback::dumpRegion(const SkRegion& region) const {
     SkDebugf("region dump unimplemented\n");
 }
 int SkPicturePlayback::dumpDrawType(char* bufferPtr, char* buffer, DrawType drawType) {
     return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
         "k%s, ", DrawTypeToString(drawType));
 }
 int SkPicturePlayback::dumpInt(char* bufferPtr, char* buffer, char* name) {
     return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
         "%s:%d, ", name, getInt());
 }
 int SkPicturePlayback::dumpRect(char* bufferPtr, char* buffer, char* name) {
     const SkRect* rect = fReader.skipRect();
     return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
         "%s:{l:%g t:%g r:%g b:%g}, ", name, SkScalarToFloat(rect.fLeft),
         SkScalarToFloat(rect.fTop),
         SkScalarToFloat(rect.fRight), SkScalarToFloat(rect.fBottom));
 }
 int SkPicturePlayback::dumpPoint(char* bufferPtr, char* buffer, char* name) {
     SkPoint pt;
     getPoint(&pt);
     return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
         "%s:{x:%g y:%g}, ", name, SkScalarToFloat(pt.fX),
         SkScalarToFloat(pt.fY));
 }
 void SkPicturePlayback::dumpPointArray(char** bufferPtrPtr, char* buffer, int count) {
     char* bufferPtr = *bufferPtrPtr;
     const SkPoint* pts = (const SkPoint*)fReadStream.getAtPos();
     fReadStream.skip(sizeof(SkPoint) * count);
     bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
         "count:%d {", count);
     for (int index = 0; index < count; index++)
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
         "{x:%g y:%g}, ", SkScalarToFloat(pts[index].fX),
         SkScalarToFloat(pts[index].fY));
     bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
         "} ");
     *bufferPtrPtr = bufferPtr;
 }
 int SkPicturePlayback::dumpPtr(char* bufferPtr, char* buffer, char* name, void* ptr) {
     return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
         "%s:%p, ", name, ptr);
 }
 int SkPicturePlayback::dumpRectPtr(char* bufferPtr, char* buffer, char* name) {
     char result;
     fReadStream.read(&result, sizeof(result));
     if (result)
         return dumpRect(bufferPtr, buffer, name);
     else
         return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
             "%s:NULL, ", name);
 }
 int SkPicturePlayback::dumpScalar(char* bufferPtr, char* buffer, char* name) {
     return snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - buffer),
         "%s:%d, ", name, getScalar());
 }
 void SkPicturePlayback::dumpText(char** bufferPtrPtr, char* buffer) {
     char* bufferPtr = *bufferPtrPtr;
     int length = getInt();
     bufferPtr += dumpDrawType(bufferPtr, buffer);
     fReadStream.skipToAlign4();
     char* text = (char*) fReadStream.getAtPos();
     fReadStream.skip(length);
     bufferPtr += dumpInt(bufferPtr, buffer, "length");
     int limit = DUMP_BUFFER_SIZE - (bufferPtr - buffer) - 2;
     length >>= 1;
     if (limit > length)
         limit = length;
     if (limit > 0) {
         *bufferPtr++ = '"';
         for (int index = 0; index < limit; index++) {
             *bufferPtr++ = *(unsigned short*) text;
             text += sizeof(unsigned short);
         }
         *bufferPtr++ = '"';
     }
     *bufferPtrPtr = bufferPtr;
 }
 #define DUMP_DRAWTYPE(drawType) \
     bufferPtr += dumpDrawType(bufferPtr, buffer, drawType)
 #define DUMP_INT(name) \
     bufferPtr += dumpInt(bufferPtr, buffer, #name)
 #define DUMP_RECT_PTR(name) \
     bufferPtr += dumpRectPtr(bufferPtr, buffer, #name)
 #define DUMP_POINT(name) \
     bufferPtr += dumpRect(bufferPtr, buffer, #name)
 #define DUMP_RECT(name) \
     bufferPtr += dumpRect(bufferPtr, buffer, #name)
 #define DUMP_POINT_ARRAY(count) \
     dumpPointArray(&bufferPtr, buffer, count)
 #define DUMP_PTR(name, ptr) \
     bufferPtr += dumpPtr(bufferPtr, buffer, #name, (void*) ptr)
 #define DUMP_SCALAR(name) \
     bufferPtr += dumpScalar(bufferPtr, buffer, #name)
 #define DUMP_TEXT() \
     dumpText(&bufferPtr, buffer)
 void SkPicturePlayback::dumpStream() {
     SkDebugf("RecordStream stream = {\n");
     DrawType drawType;
     TextContainer text;
     fReadStream.rewind();
     char buffer[DUMP_BUFFER_SIZE], * bufferPtr;
     while (fReadStream.read(&drawType, sizeof(drawType))) {
         bufferPtr = buffer;
         DUMP_DRAWTYPE(drawType);
         switch (drawType) {
             case CLIP_PATH: {
                 DUMP_PTR(SkPath, &getPath());
                 DUMP_INT(SkRegion::Op);
                 DUMP_INT(offsetToRestore);
                 } break;
             case CLIP_REGION: {
                 DUMP_INT(SkRegion::Op);
                 DUMP_INT(offsetToRestore);
             } break;
             case CLIP_RECT: {
                 DUMP_RECT(rect);
                 DUMP_INT(SkRegion::Op);
                 DUMP_INT(offsetToRestore);
                 } break;
             case CONCAT:
                 break;
             case DRAW_BITMAP: {
                 DUMP_PTR(SkPaint, getPaint());
                 DUMP_PTR(SkBitmap, &getBitmap());
                 DUMP_SCALAR(left);
                 DUMP_SCALAR(top);
                 } break;
             case DRAW_PAINT:
                 DUMP_PTR(SkPaint, getPaint());
                 break;
             case DRAW_PATH: {
                 DUMP_PTR(SkPaint, getPaint());
                 DUMP_PTR(SkPath, &getPath());
                 } break;
             case DRAW_PICTURE: {
                 DUMP_PTR(SkPicture, &getPicture());
                 } break;
             case DRAW_POINTS: {
                 DUMP_PTR(SkPaint, getPaint());
                 (void)getInt(); // PointMode
                 size_t count = getInt();
                 fReadStream.skipToAlign4();
                 DUMP_POINT_ARRAY(count);
                 } break;
             case DRAW_POS_TEXT: {
                 DUMP_PTR(SkPaint, getPaint());
                 DUMP_TEXT();
                 size_t points = getInt();
                 fReadStream.skipToAlign4();
                 DUMP_POINT_ARRAY(points);
                 } break;
             case DRAW_POS_TEXT_H: {
                 DUMP_PTR(SkPaint, getPaint());
                 DUMP_TEXT();
                 size_t points = getInt();
                 fReadStream.skipToAlign4();
                 DUMP_SCALAR(top);
                 DUMP_SCALAR(bottom);
                 DUMP_SCALAR(constY);
                 DUMP_POINT_ARRAY(points);
                 } break;
             case DRAW_RECT: {
                 DUMP_PTR(SkPaint, getPaint());
                 DUMP_RECT(rect);
                 } break;
             case DRAW_SPRITE: {
                 DUMP_PTR(SkPaint, getPaint());
                 DUMP_PTR(SkBitmap, &getBitmap());
                 DUMP_SCALAR(left);
                 DUMP_SCALAR(top);
                 } break;
             case DRAW_TEXT: {
                 DUMP_PTR(SkPaint, getPaint());
                 DUMP_TEXT();
                 DUMP_SCALAR(x);
                 DUMP_SCALAR(y);
                 } break;
             case DRAW_TEXT_ON_PATH: {
                 DUMP_PTR(SkPaint, getPaint());
                 DUMP_TEXT();
                 DUMP_PTR(SkPath, &getPath());
                 } break;
             case RESTORE:
                 break;
             case ROTATE:
                 DUMP_SCALAR(rotate);
                 break;
             case SAVE:
                 DUMP_INT(SkCanvas::SaveFlags);
                 break;
             case SAVE_LAYER: {
                 DUMP_RECT_PTR(layer);
                 DUMP_PTR(SkPaint, getPaint());
                 DUMP_INT(SkCanvas::SaveFlags);
                 } break;
             case SCALE: {
                 DUMP_SCALAR(sx);
                 DUMP_SCALAR(sy);
                 } break;
             case SKEW: {
                 DUMP_SCALAR(sx);
                 DUMP_SCALAR(sy);
                 } break;
             case TRANSLATE: {
                 DUMP_SCALAR(dx);
                 DUMP_SCALAR(dy);
                 } break;
             default:
                 SkASSERT(0);
         }
         SkDebugf("%s\n", buffer);
     }
 }
 void SkPicturePlayback::dump() const {
     char pBuffer[DUMP_BUFFER_SIZE];
     char* bufferPtr = pBuffer;
     int index;
     if (fBitmapCount > 0)
         SkDebugf("// bitmaps (%d)\n", fBitmapCount);
     for (index = 0; index < fBitmapCount; index++) {
         const SkBitmap& bitmap = fBitmaps[index];
         dumpBitmap(bitmap);
     }
     if (fBitmapCount > 0)
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "Bitmaps bitmaps = {");
     for (index = 0; index < fBitmapCount; index++)
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "bitmap%p, ", &fBitmaps[index]);
     if (fBitmapCount > 0)
         SkDebugf("%s0};\n", pBuffer);
     if (fPaintCount > 0)
         SkDebugf("// paints (%d)\n", fPaintCount);
     for (index = 0; index < fPaintCount; index++) {
         const SkPaint& paint = fPaints[index];
         dumpPaint(paint);
     }
     bufferPtr = pBuffer;
     if (fPaintCount > 0)
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "Paints paints = {");
     for (index = 0; index < fPaintCount; index++)
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "paint%p, ", &fPaints[index]);
     if (fPaintCount > 0)
         SkDebugf("%s0};\n", pBuffer);
     for (index = 0; index < fPathCount; index++) {
         const SkPath& path = fPaths[index];
         dumpPath(path);
     }
     bufferPtr = pBuffer;
     if (fPathCount > 0)
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "Paths paths = {");
     for (index = 0; index < fPathCount; index++)
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "path%p, ", &fPaths[index]);
     if (fPathCount > 0)
         SkDebugf("%s0};\n", pBuffer);
     for (index = 0; index < fPictureCount; index++) {
         dumpPicture(*fPictureRefs[index]);
     }
     bufferPtr = pBuffer;
     if (fPictureCount > 0)
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "Pictures pictures = {");
     for (index = 0; index < fPictureCount; index++)
         bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer),
             "picture%p, ", fPictureRefs[index]);
     if (fPictureCount > 0)
         SkDebugf("%s0};\n", pBuffer);
     const_cast<SkPicturePlayback*>(this)->dumpStream();
 }
 #endif

The Tor Browser / annotate

gfx/skia/trunk/src/core/SkPicturePlayback.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/core/SkPicturePlayback.cpp