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

gfx/skia/trunk/src/pipe/SkGPipeWrite.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/pipe/SkGPipeWrite.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 "SkAnnotation.h"
 #include "SkBitmapDevice.h"
 #include "SkBitmapHeap.h"
 #include "SkCanvas.h"
 #include "SkColorFilter.h"
 #include "SkData.h"
 #include "SkDrawLooper.h"
 #include "SkGPipe.h"
 #include "SkGPipePriv.h"
 #include "SkImageFilter.h"
 #include "SkMaskFilter.h"
 #include "SkWriteBuffer.h"
 #include "SkPaint.h"
 #include "SkPathEffect.h"
 #include "SkPictureFlat.h"
 #include "SkRasterizer.h"
 #include "SkRRect.h"
 #include "SkShader.h"
 #include "SkStream.h"
 #include "SkTSearch.h"
 #include "SkTypeface.h"
 #include "SkWriter32.h"
 enum {
     kSizeOfFlatRRect = sizeof(SkRect) + 4 * sizeof(SkVector)
 };
 static bool isCrossProcess(uint32_t flags) {
     return SkToBool(flags & SkGPipeWriter::kCrossProcess_Flag);
 }
 static SkFlattenable* get_paintflat(const SkPaint& paint, unsigned paintFlat) {
     SkASSERT(paintFlat < kCount_PaintFlats);
     switch (paintFlat) {
         case kColorFilter_PaintFlat:    return paint.getColorFilter();
         case kDrawLooper_PaintFlat:     return paint.getLooper();
         case kMaskFilter_PaintFlat:     return paint.getMaskFilter();
         case kPathEffect_PaintFlat:     return paint.getPathEffect();
         case kRasterizer_PaintFlat:     return paint.getRasterizer();
         case kShader_PaintFlat:         return paint.getShader();
         case kImageFilter_PaintFlat:    return paint.getImageFilter();
         case kXfermode_PaintFlat:       return paint.getXfermode();
     }
     SkDEBUGFAIL("never gets here");
     return NULL;
 }
 static size_t writeTypeface(SkWriter32* writer, SkTypeface* typeface) {
     SkASSERT(typeface);
     SkDynamicMemoryWStream stream;
     typeface->serialize(&stream);
     size_t size = stream.getOffset();
     if (writer) {
         writer->write32(size);
         SkAutoDataUnref data(stream.copyToData());
         writer->writePad(data->data(), size);
     }
     return 4 + SkAlign4(size);
 }
 ///////////////////////////////////////////////////////////////////////////////
 class FlattenableHeap : public SkFlatController {
 public:
     FlattenableHeap(int numFlatsToKeep, SkNamedFactorySet* fset, bool isCrossProcess)
     : INHERITED(isCrossProcess ? SkWriteBuffer::kCrossProcess_Flag : 0)
     , fNumFlatsToKeep(numFlatsToKeep) {
         SkASSERT((isCrossProcess && fset != NULL) || (!isCrossProcess && NULL == fset));
         if (isCrossProcess) {
             this->setNamedFactorySet(fset);
         }
     }
     ~FlattenableHeap() {
         fPointers.freeAll();
     }
     virtual void* allocThrow(size_t bytes) SK_OVERRIDE;
     virtual void unalloc(void* ptr) SK_OVERRIDE;
     void setBitmapStorage(SkBitmapHeap* heap) {
         this->setBitmapHeap(heap);
     }
     const SkFlatData* flatToReplace() const;
     // Mark an SkFlatData as one that should not be returned by flatToReplace.
     // Takes the result of SkFlatData::index() as its parameter.
     void markFlatForKeeping(int index) {
         *fFlatsThatMustBeKept.append() = index;
     }
     void markAllFlatsSafeToDelete() {
         fFlatsThatMustBeKept.reset();
     }
 private:
     // Keep track of the indices (i.e. the result of SkFlatData::index()) of
     // flats that must be kept, since they are on the current paint.
     SkTDArray<int>   fFlatsThatMustBeKept;
     SkTDArray<void*> fPointers;
     const int        fNumFlatsToKeep;
     typedef SkFlatController INHERITED;
 };
 void FlattenableHeap::unalloc(void* ptr) {
     int indexToRemove = fPointers.rfind(ptr);
     if (indexToRemove >= 0) {
         sk_free(ptr);
         fPointers.remove(indexToRemove);
     }
 }
 void* FlattenableHeap::allocThrow(size_t bytes) {
     void* ptr = sk_malloc_throw(bytes);
     *fPointers.append() = ptr;
     return ptr;
 }
 const SkFlatData* FlattenableHeap::flatToReplace() const {
     // First, determine whether we should replace one.
     if (fPointers.count() > fNumFlatsToKeep) {
         // Look through the flattenable heap.
         // TODO: Return the LRU flat.
         for (int i = 0; i < fPointers.count(); i++) {
             SkFlatData* potential = (SkFlatData*)fPointers[i];
             // Make sure that it is not one that must be kept.
             bool mustKeep = false;
             for (int j = 0; j < fFlatsThatMustBeKept.count(); j++) {
                 if (potential->index() == fFlatsThatMustBeKept[j]) {
                     mustKeep = true;
                     break;
                 }
             }
             if (!mustKeep) {
                 return potential;
             }
         }
     }
     return NULL;
 }
 ///////////////////////////////////////////////////////////////////////////////
 struct SkFlattenableTraits {
     static void Flatten(SkWriteBuffer& buffer, const SkFlattenable& flattenable) {
         buffer.writeFlattenable(&flattenable);
     }
     // No need to define unflatten if we never call it.
 };
 typedef SkFlatDictionary<SkFlattenable, SkFlattenableTraits> FlatDictionary;
 ///////////////////////////////////////////////////////////////////////////////
 /**
  * If SkBitmaps are to be flattened to send to the reader, this class is
  * provided to the SkBitmapHeap to tell the SkGPipeCanvas to do so.
  */
 class BitmapShuttle : public SkBitmapHeap::ExternalStorage {
 public:
     BitmapShuttle(SkGPipeCanvas*);
     ~BitmapShuttle();
     virtual bool insert(const SkBitmap& bitmap, int32_t slot) SK_OVERRIDE;
     /**
      *  Remove the SkGPipeCanvas used for insertion. After this, calls to
      *  insert will crash.
      */
     void removeCanvas();
 private:
     SkGPipeCanvas*    fCanvas;
 };
 ///////////////////////////////////////////////////////////////////////////////
 class SkGPipeCanvas : public SkCanvas {
 public:
     SkGPipeCanvas(SkGPipeController*, SkWriter32*, uint32_t flags,
                   uint32_t width, uint32_t height);
     virtual ~SkGPipeCanvas();
     /**
      *  Called when nothing else is to be written to the stream. Any repeated
      *  calls are ignored.
      *
      *  @param notifyReaders Whether to send a message to the reader(s) that
      *      the writer is through sending commands. Should generally be true,
      *      unless there is an error which prevents further messages from
      *      being sent.
      */
     void finish(bool notifyReaders) {
         if (fDone) {
             return;
         }
         if (notifyReaders && this->needOpBytes()) {
             this->writeOp(kDone_DrawOp);
             this->doNotify();
         }
         if (shouldFlattenBitmaps(fFlags)) {
             // The following circular references exist:
             // fFlattenableHeap -> fWriteBuffer -> fBitmapStorage -> fExternalStorage -> fCanvas
             // fBitmapHeap -> fExternalStorage -> fCanvas
             // fFlattenableHeap -> fBitmapStorage -> fExternalStorage -> fCanvas
             // Break them all by destroying the final link to this SkGPipeCanvas.
             fBitmapShuttle->removeCanvas();
         }
         fDone = true;
     }
     void flushRecording(bool detachCurrentBlock);
     size_t freeMemoryIfPossible(size_t bytesToFree);
     size_t storageAllocatedForRecording() {
         return (NULL == fBitmapHeap) ? 0 : fBitmapHeap->bytesAllocated();
     }
     // overrides from SkCanvas
     virtual bool isDrawingToLayer() const SK_OVERRIDE;
     virtual void clear(SkColor) SK_OVERRIDE;
     virtual void drawPaint(const SkPaint& paint) SK_OVERRIDE;
     virtual void drawPoints(PointMode, size_t count, const SkPoint pts[],
                             const SkPaint&) SK_OVERRIDE;
     virtual void drawOval(const SkRect&, const SkPaint&) SK_OVERRIDE;
     virtual void drawRect(const SkRect& rect, const SkPaint&) SK_OVERRIDE;
     virtual void drawRRect(const SkRRect&, const SkPaint&) SK_OVERRIDE;
     virtual void drawPath(const SkPath& path, const SkPaint&) SK_OVERRIDE;
     virtual void drawBitmap(const SkBitmap&, SkScalar left, SkScalar top,
                             const SkPaint*) SK_OVERRIDE;
     virtual void drawBitmapRectToRect(const SkBitmap&, const SkRect* src,
                                       const SkRect& dst, const SkPaint* paint,
                                       DrawBitmapRectFlags flags) SK_OVERRIDE;
     virtual void drawBitmapMatrix(const SkBitmap&, const SkMatrix&,
                                   const SkPaint*) SK_OVERRIDE;
     virtual void drawBitmapNine(const SkBitmap& bitmap, const SkIRect& center,
                                 const SkRect& dst, const SkPaint* paint = NULL) SK_OVERRIDE;
     virtual void drawSprite(const SkBitmap&, int left, int top,
                             const SkPaint*) SK_OVERRIDE;
     virtual void drawText(const void* text, size_t byteLength, SkScalar x,
                           SkScalar y, const SkPaint&) SK_OVERRIDE;
     virtual void drawPosText(const void* text, size_t byteLength,
                              const SkPoint pos[], const SkPaint&) SK_OVERRIDE;
     virtual void drawPosTextH(const void* text, size_t byteLength,
                               const SkScalar xpos[], SkScalar constY,
                               const SkPaint&) SK_OVERRIDE;
     virtual void drawTextOnPath(const void* text, size_t byteLength,
                             const SkPath& path, const SkMatrix* matrix,
                                 const SkPaint&) SK_OVERRIDE;
     virtual void drawPicture(SkPicture& picture) SK_OVERRIDE;
     virtual void drawVertices(VertexMode, int vertexCount,
                           const SkPoint vertices[], const SkPoint texs[],
                           const SkColor colors[], SkXfermode*,
                           const uint16_t indices[], int indexCount,
                               const SkPaint&) SK_OVERRIDE;
     virtual void drawData(const void*, size_t) SK_OVERRIDE;
     virtual void beginCommentGroup(const char* description) SK_OVERRIDE;
     virtual void addComment(const char* kywd, const char* value) SK_OVERRIDE;
     virtual void endCommentGroup() SK_OVERRIDE;
     /**
      * Flatten an SkBitmap to send to the reader, where it will be referenced
      * according to slot.
      */
     bool shuttleBitmap(const SkBitmap&, int32_t slot);
 protected:
     virtual void willSave(SaveFlags) SK_OVERRIDE;
     virtual SaveLayerStrategy willSaveLayer(const SkRect*, const SkPaint*, SaveFlags) SK_OVERRIDE;
     virtual void willRestore() SK_OVERRIDE;
     virtual void didTranslate(SkScalar, SkScalar) SK_OVERRIDE;
     virtual void didScale(SkScalar, SkScalar) SK_OVERRIDE;
     virtual void didRotate(SkScalar) SK_OVERRIDE;
     virtual void didSkew(SkScalar, SkScalar) SK_OVERRIDE;
     virtual void didConcat(const SkMatrix&) SK_OVERRIDE;
     virtual void didSetMatrix(const SkMatrix&) SK_OVERRIDE;
     virtual void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) SK_OVERRIDE;
     virtual void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
     virtual void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
     virtual void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
     virtual void onClipRegion(const SkRegion&, SkRegion::Op) SK_OVERRIDE;
 private:
     enum {
         kNoSaveLayer = -1,
     };
     SkNamedFactorySet* fFactorySet;
     int                fFirstSaveLayerStackLevel;
     SkBitmapHeap*      fBitmapHeap;
     SkGPipeController* fController;
     SkWriter32&        fWriter;
     size_t             fBlockSize; // amount allocated for writer
     size_t             fBytesNotified;
     bool               fDone;
     const uint32_t     fFlags;
     SkRefCntSet        fTypefaceSet;
     uint32_t getTypefaceID(SkTypeface*);
     inline void writeOp(DrawOps op, unsigned flags, unsigned data) {
         fWriter.write32(DrawOp_packOpFlagData(op, flags, data));
     }
     inline void writeOp(DrawOps op) {
         fWriter.write32(DrawOp_packOpFlagData(op, 0, 0));
     }
     bool needOpBytes(size_t size = 0);
     inline void doNotify() {
         if (!fDone) {
             size_t bytes = fWriter.bytesWritten() - fBytesNotified;
             if (bytes > 0) {
                 fController->notifyWritten(bytes);
                 fBytesNotified += bytes;
             }
         }
     }
     // Should be called after any calls to an SkFlatDictionary::findAndReplace
     // if a new SkFlatData was added when in cross process mode
     void flattenFactoryNames();
     FlattenableHeap             fFlattenableHeap;
     FlatDictionary              fFlatDictionary;
     SkAutoTUnref<BitmapShuttle> fBitmapShuttle;
     int                         fCurrFlatIndex[kCount_PaintFlats];
     int flattenToIndex(SkFlattenable* obj, PaintFlats);
     // Common code used by drawBitmap*. Behaves differently depending on the
     // type of SkBitmapHeap being used, which is determined by the flags used.
     bool commonDrawBitmap(const SkBitmap& bm, DrawOps op, unsigned flags,
                           size_t opBytesNeeded, const SkPaint* paint);
     SkPaint fPaint;
     void writePaint(const SkPaint&);
     class AutoPipeNotify {
     public:
         AutoPipeNotify(SkGPipeCanvas* canvas) : fCanvas(canvas) {}
         ~AutoPipeNotify() { fCanvas->doNotify(); }
     private:
         SkGPipeCanvas* fCanvas;
     };
     friend class AutoPipeNotify;
     typedef SkCanvas INHERITED;
 };
 void SkGPipeCanvas::flattenFactoryNames() {
     const char* name;
     while ((name = fFactorySet->getNextAddedFactoryName()) != NULL) {
         size_t len = strlen(name);
         if (this->needOpBytes(len)) {
             this->writeOp(kDef_Factory_DrawOp);
             fWriter.writeString(name, len);
         }
     }
 }
 bool SkGPipeCanvas::shuttleBitmap(const SkBitmap& bm, int32_t slot) {
     SkASSERT(shouldFlattenBitmaps(fFlags));
     SkWriteBuffer buffer;
     buffer.setNamedFactoryRecorder(fFactorySet);
     buffer.writeBitmap(bm);
     this->flattenFactoryNames();
     uint32_t size = buffer.bytesWritten();
     if (this->needOpBytes(size)) {
         this->writeOp(kDef_Bitmap_DrawOp, 0, slot);
         void* dst = static_cast<void*>(fWriter.reserve(size));
         buffer.writeToMemory(dst);
         return true;
     }
     return false;
 }
 // return 0 for NULL (or unflattenable obj), or index-base-1
 // return ~(index-base-1) if an old flattenable was replaced
 int SkGPipeCanvas::flattenToIndex(SkFlattenable* obj, PaintFlats paintflat) {
     SkASSERT(!fDone && fBitmapHeap != NULL);
     if (NULL == obj) {
         return 0;
     }
     fBitmapHeap->deferAddingOwners();
     bool added, replaced;
     const SkFlatData* flat = fFlatDictionary.findAndReplace(*obj, fFlattenableHeap.flatToReplace(),
                                                             &added, &replaced);
     fBitmapHeap->endAddingOwnersDeferral(added);
     int index = flat->index();
     if (added) {
         if (isCrossProcess(fFlags)) {
             this->flattenFactoryNames();
         }
         size_t flatSize = flat->flatSize();
         if (this->needOpBytes(flatSize)) {
             this->writeOp(kDef_Flattenable_DrawOp, paintflat, index);
             fWriter.write(flat->data(), flatSize);
         }
     }
     if (replaced) {
         index = ~index;
     }
     return index;
 }
 ///////////////////////////////////////////////////////////////////////////////
 #define MIN_BLOCK_SIZE  (16 * 1024)
 #define BITMAPS_TO_KEEP 5
 #define FLATTENABLES_TO_KEEP 10
 SkGPipeCanvas::SkGPipeCanvas(SkGPipeController* controller,
                              SkWriter32* writer, uint32_t flags,
                              uint32_t width, uint32_t height)
     : SkCanvas(width, height)
     , fFactorySet(isCrossProcess(flags) ? SkNEW(SkNamedFactorySet) : NULL)
     , fWriter(*writer)
     , fFlags(flags)
     , fFlattenableHeap(FLATTENABLES_TO_KEEP, fFactorySet, isCrossProcess(flags))
     , fFlatDictionary(&fFlattenableHeap)
 {
     fController = controller;
     fDone = false;
     fBlockSize = 0; // need first block from controller
     fBytesNotified = 0;
     fFirstSaveLayerStackLevel = kNoSaveLayer;
     sk_bzero(fCurrFlatIndex, sizeof(fCurrFlatIndex));
     // Tell the reader the appropriate flags to use.
     if (this->needOpBytes()) {
         this->writeOp(kReportFlags_DrawOp, fFlags, 0);
     }
     if (shouldFlattenBitmaps(flags)) {
         fBitmapShuttle.reset(SkNEW_ARGS(BitmapShuttle, (this)));
         fBitmapHeap = SkNEW_ARGS(SkBitmapHeap, (fBitmapShuttle.get(), BITMAPS_TO_KEEP));
     } else {
         fBitmapHeap = SkNEW_ARGS(SkBitmapHeap,
                                  (BITMAPS_TO_KEEP, controller->numberOfReaders()));
         if (this->needOpBytes(sizeof(void*))) {
             this->writeOp(kShareBitmapHeap_DrawOp);
             fWriter.writePtr(static_cast<void*>(fBitmapHeap));
         }
     }
     fFlattenableHeap.setBitmapStorage(fBitmapHeap);
     this->doNotify();
 }
 SkGPipeCanvas::~SkGPipeCanvas() {
     this->finish(true);
     SkSafeUnref(fFactorySet);
     SkSafeUnref(fBitmapHeap);
 }
 bool SkGPipeCanvas::needOpBytes(size_t needed) {
     if (fDone) {
         return false;
     }
     needed += 4;  // size of DrawOp atom
     if (fWriter.bytesWritten() + needed > fBlockSize) {
         // Before we wipe out any data that has already been written, read it
         // out.
         this->doNotify();
         size_t blockSize = SkMax32(MIN_BLOCK_SIZE, needed);
         void* block = fController->requestBlock(blockSize, &fBlockSize);
         if (NULL == block) {
             // Do not notify the readers, which would call this function again.
             this->finish(false);
             return false;
         }
         SkASSERT(SkIsAlign4(fBlockSize));
         fWriter.reset(block, fBlockSize);
         fBytesNotified = 0;
     }
     return true;
 }
 uint32_t SkGPipeCanvas::getTypefaceID(SkTypeface* face) {
     uint32_t id = 0; // 0 means default/null typeface
     if (face) {
         id = fTypefaceSet.find(face);
         if (0 == id) {
             id = fTypefaceSet.add(face);
             size_t size = writeTypeface(NULL, face);
             if (this->needOpBytes(size)) {
                 this->writeOp(kDef_Typeface_DrawOp);
                 writeTypeface(&fWriter, face);
             }
         }
     }
     return id;
 }
 ///////////////////////////////////////////////////////////////////////////////
 #define NOTIFY_SETUP(canvas)    \
     AutoPipeNotify apn(canvas)
 void SkGPipeCanvas::willSave(SaveFlags flags) {
     NOTIFY_SETUP(this);
     if (this->needOpBytes()) {
         this->writeOp(kSave_DrawOp, 0, flags);
     }
     this->INHERITED::willSave(flags);
 }
 SkCanvas::SaveLayerStrategy SkGPipeCanvas::willSaveLayer(const SkRect* bounds, const SkPaint* paint,
                                                          SaveFlags saveFlags) {
     NOTIFY_SETUP(this);
     size_t size = 0;
     unsigned opFlags = 0;
     if (bounds) {
         opFlags |= kSaveLayer_HasBounds_DrawOpFlag;
         size += sizeof(SkRect);
     }
     if (paint) {
         opFlags |= kSaveLayer_HasPaint_DrawOpFlag;
         this->writePaint(*paint);
     }
     if (this->needOpBytes(size)) {
         this->writeOp(kSaveLayer_DrawOp, opFlags, saveFlags);
         if (bounds) {
             fWriter.writeRect(*bounds);
         }
     }
     if (kNoSaveLayer == fFirstSaveLayerStackLevel){
         fFirstSaveLayerStackLevel = this->getSaveCount();
     }
     this->INHERITED::willSaveLayer(bounds, paint, saveFlags);
     // we don't create a layer
     return kNoLayer_SaveLayerStrategy;
 }
 void SkGPipeCanvas::willRestore() {
     NOTIFY_SETUP(this);
     if (this->needOpBytes()) {
         this->writeOp(kRestore_DrawOp);
     }
     if (this->getSaveCount() - 1 == fFirstSaveLayerStackLevel){
         fFirstSaveLayerStackLevel = kNoSaveLayer;
     }
     this->INHERITED::willRestore();
 }
 bool SkGPipeCanvas::isDrawingToLayer() const {
     return kNoSaveLayer != fFirstSaveLayerStackLevel;
 }
 void SkGPipeCanvas::didTranslate(SkScalar dx, SkScalar dy) {
     if (dx || dy) {
         NOTIFY_SETUP(this);
         if (this->needOpBytes(2 * sizeof(SkScalar))) {
             this->writeOp(kTranslate_DrawOp);
             fWriter.writeScalar(dx);
             fWriter.writeScalar(dy);
         }
     }
     this->INHERITED::didTranslate(dx, dy);
 }
 void SkGPipeCanvas::didScale(SkScalar sx, SkScalar sy) {
     if (sx || sy) {
         NOTIFY_SETUP(this);
         if (this->needOpBytes(2 * sizeof(SkScalar))) {
             this->writeOp(kScale_DrawOp);
             fWriter.writeScalar(sx);
             fWriter.writeScalar(sy);
         }
     }
     this->INHERITED::didScale(sx, sy);
 }
 void SkGPipeCanvas::didRotate(SkScalar degrees) {
     if (degrees) {
         NOTIFY_SETUP(this);
         if (this->needOpBytes(sizeof(SkScalar))) {
             this->writeOp(kRotate_DrawOp);
             fWriter.writeScalar(degrees);
         }
     }
     this->INHERITED::didRotate(degrees);
 }
 void SkGPipeCanvas::didSkew(SkScalar sx, SkScalar sy) {
     if (sx || sy) {
         NOTIFY_SETUP(this);
         if (this->needOpBytes(2 * sizeof(SkScalar))) {
             this->writeOp(kSkew_DrawOp);
             fWriter.writeScalar(sx);
             fWriter.writeScalar(sy);
         }
     }
     this->INHERITED::didSkew(sx, sy);
 }
 void SkGPipeCanvas::didConcat(const SkMatrix& matrix) {
     if (!matrix.isIdentity()) {
         NOTIFY_SETUP(this);
         if (this->needOpBytes(matrix.writeToMemory(NULL))) {
             this->writeOp(kConcat_DrawOp);
             fWriter.writeMatrix(matrix);
         }
     }
     this->INHERITED::didConcat(matrix);
 }
 void SkGPipeCanvas::didSetMatrix(const SkMatrix& matrix) {
     NOTIFY_SETUP(this);
     if (this->needOpBytes(matrix.writeToMemory(NULL))) {
         this->writeOp(kSetMatrix_DrawOp);
         fWriter.writeMatrix(matrix);
     }
     this->INHERITED::didSetMatrix(matrix);
 }
 void SkGPipeCanvas::onClipRect(const SkRect& rect, SkRegion::Op rgnOp,
                                ClipEdgeStyle edgeStyle) {
     NOTIFY_SETUP(this);
     if (this->needOpBytes(sizeof(SkRect))) {
         unsigned flags = 0;
         if (kSoft_ClipEdgeStyle == edgeStyle) {
             flags = kClip_HasAntiAlias_DrawOpFlag;
         }
         this->writeOp(kClipRect_DrawOp, flags, rgnOp);
         fWriter.writeRect(rect);
     }
     this->INHERITED::onClipRect(rect, rgnOp, edgeStyle);
 }
 void SkGPipeCanvas::onClipRRect(const SkRRect& rrect, SkRegion::Op rgnOp,
                                 ClipEdgeStyle edgeStyle) {
     NOTIFY_SETUP(this);
     if (this->needOpBytes(kSizeOfFlatRRect)) {
         unsigned flags = 0;
         if (kSoft_ClipEdgeStyle == edgeStyle) {
             flags = kClip_HasAntiAlias_DrawOpFlag;
         }
         this->writeOp(kClipRRect_DrawOp, flags, rgnOp);
         fWriter.writeRRect(rrect);
     }
     this->INHERITED::onClipRRect(rrect, rgnOp, edgeStyle);
 }
 void SkGPipeCanvas::onClipPath(const SkPath& path, SkRegion::Op rgnOp,
                                ClipEdgeStyle edgeStyle) {
     NOTIFY_SETUP(this);
     if (this->needOpBytes(path.writeToMemory(NULL))) {
         unsigned flags = 0;
         if (kSoft_ClipEdgeStyle == edgeStyle) {
             flags = kClip_HasAntiAlias_DrawOpFlag;
         }
         this->writeOp(kClipPath_DrawOp, flags, rgnOp);
         fWriter.writePath(path);
     }
     // we just pass on the bounds of the path
     this->INHERITED::onClipRect(path.getBounds(), rgnOp, edgeStyle);
 }
 void SkGPipeCanvas::onClipRegion(const SkRegion& region, SkRegion::Op rgnOp) {
     NOTIFY_SETUP(this);
     if (this->needOpBytes(region.writeToMemory(NULL))) {
         this->writeOp(kClipRegion_DrawOp, 0, rgnOp);
         fWriter.writeRegion(region);
     }
     this->INHERITED::onClipRegion(region, rgnOp);
 }
 ///////////////////////////////////////////////////////////////////////////////
 void SkGPipeCanvas::clear(SkColor color) {
     NOTIFY_SETUP(this);
     unsigned flags = 0;
     if (color) {
         flags |= kClear_HasColor_DrawOpFlag;
     }
     if (this->needOpBytes(sizeof(SkColor))) {
         this->writeOp(kDrawClear_DrawOp, flags, 0);
         if (color) {
             fWriter.write32(color);
         }
     }
 }
 void SkGPipeCanvas::drawPaint(const SkPaint& paint) {
     NOTIFY_SETUP(this);
     this->writePaint(paint);
     if (this->needOpBytes()) {
         this->writeOp(kDrawPaint_DrawOp);
     }
 }
 void SkGPipeCanvas::drawPoints(PointMode mode, size_t count,
                                const SkPoint pts[], const SkPaint& paint) {
     if (count) {
         NOTIFY_SETUP(this);
         this->writePaint(paint);
         if (this->needOpBytes(4 + count * sizeof(SkPoint))) {
             this->writeOp(kDrawPoints_DrawOp, mode, 0);
             fWriter.write32(count);
             fWriter.write(pts, count * sizeof(SkPoint));
         }
     }
 }
 void SkGPipeCanvas::drawOval(const SkRect& rect, const SkPaint& paint) {
     NOTIFY_SETUP(this);
     this->writePaint(paint);
     if (this->needOpBytes(sizeof(SkRect))) {
         this->writeOp(kDrawOval_DrawOp);
         fWriter.writeRect(rect);
     }
 }
 void SkGPipeCanvas::drawRect(const SkRect& rect, const SkPaint& paint) {
     NOTIFY_SETUP(this);
     this->writePaint(paint);
     if (this->needOpBytes(sizeof(SkRect))) {
         this->writeOp(kDrawRect_DrawOp);
         fWriter.writeRect(rect);
     }
 }
 void SkGPipeCanvas::drawRRect(const SkRRect& rrect, const SkPaint& paint) {
     NOTIFY_SETUP(this);
     this->writePaint(paint);
     if (this->needOpBytes(kSizeOfFlatRRect)) {
         this->writeOp(kDrawRRect_DrawOp);
         fWriter.writeRRect(rrect);
     }
 }
 void SkGPipeCanvas::onDrawDRRect(const SkRRect& outer, const SkRRect& inner,
                                  const SkPaint& paint) {
     NOTIFY_SETUP(this);
     this->writePaint(paint);
     if (this->needOpBytes(kSizeOfFlatRRect * 2)) {
         this->writeOp(kDrawDRRect_DrawOp);
         fWriter.writeRRect(outer);
         fWriter.writeRRect(inner);
     }
 }
 void SkGPipeCanvas::drawPath(const SkPath& path, const SkPaint& paint) {
     NOTIFY_SETUP(this);
     this->writePaint(paint);
     if (this->needOpBytes(path.writeToMemory(NULL))) {
         this->writeOp(kDrawPath_DrawOp);
         fWriter.writePath(path);
     }
 }
 bool SkGPipeCanvas::commonDrawBitmap(const SkBitmap& bm, DrawOps op,
                                      unsigned flags,
                                      size_t opBytesNeeded,
                                      const SkPaint* paint) {
     if (paint != NULL) {
         flags |= kDrawBitmap_HasPaint_DrawOpFlag;
         this->writePaint(*paint);
     }
     if (this->needOpBytes(opBytesNeeded)) {
         SkASSERT(fBitmapHeap != NULL);
         int32_t bitmapIndex = fBitmapHeap->insert(bm);
         if (SkBitmapHeap::INVALID_SLOT == bitmapIndex) {
             return false;
         }
         this->writeOp(op, flags, bitmapIndex);
         return true;
     }
     return false;
 }
 void SkGPipeCanvas::drawBitmap(const SkBitmap& bm, SkScalar left, SkScalar top,
                                const SkPaint* paint) {
     NOTIFY_SETUP(this);
     size_t opBytesNeeded = sizeof(SkScalar) * 2;
     if (this->commonDrawBitmap(bm, kDrawBitmap_DrawOp, 0, opBytesNeeded, paint)) {
         fWriter.writeScalar(left);
         fWriter.writeScalar(top);
     }
 }
 void SkGPipeCanvas::drawBitmapRectToRect(const SkBitmap& bm, const SkRect* src,
                                          const SkRect& dst, const SkPaint* paint,
                                          DrawBitmapRectFlags dbmrFlags) {
     NOTIFY_SETUP(this);
     size_t opBytesNeeded = sizeof(SkRect);
     bool hasSrc = src != NULL;
     unsigned flags;
     if (hasSrc) {
         flags = kDrawBitmap_HasSrcRect_DrawOpFlag;
         opBytesNeeded += sizeof(int32_t) * 4;
     } else {
         flags = 0;
     }
     if (dbmrFlags & kBleed_DrawBitmapRectFlag) {
         flags |= kDrawBitmap_Bleed_DrawOpFlag;
     }
     if (this->commonDrawBitmap(bm, kDrawBitmapRectToRect_DrawOp, flags, opBytesNeeded, paint)) {
         if (hasSrc) {
             fWriter.writeRect(*src);
         }
         fWriter.writeRect(dst);
     }
 }
 void SkGPipeCanvas::drawBitmapMatrix(const SkBitmap& bm, const SkMatrix& matrix,
                                      const SkPaint* paint) {
     NOTIFY_SETUP(this);
     size_t opBytesNeeded = matrix.writeToMemory(NULL);
     if (this->commonDrawBitmap(bm, kDrawBitmapMatrix_DrawOp, 0, opBytesNeeded, paint)) {
         fWriter.writeMatrix(matrix);
     }
 }
 void SkGPipeCanvas::drawBitmapNine(const SkBitmap& bm, const SkIRect& center,
                                    const SkRect& dst, const SkPaint* paint) {
     NOTIFY_SETUP(this);
     size_t opBytesNeeded = sizeof(int32_t) * 4 + sizeof(SkRect);
     if (this->commonDrawBitmap(bm, kDrawBitmapNine_DrawOp, 0, opBytesNeeded, paint)) {
         fWriter.write32(center.fLeft);
         fWriter.write32(center.fTop);
         fWriter.write32(center.fRight);
         fWriter.write32(center.fBottom);
         fWriter.writeRect(dst);
     }
 }
 void SkGPipeCanvas::drawSprite(const SkBitmap& bm, int left, int top,
                                    const SkPaint* paint) {
     NOTIFY_SETUP(this);
     size_t opBytesNeeded = sizeof(int32_t) * 2;
     if (this->commonDrawBitmap(bm, kDrawSprite_DrawOp, 0, opBytesNeeded, paint)) {
         fWriter.write32(left);
         fWriter.write32(top);
     }
 }
 void SkGPipeCanvas::drawText(const void* text, size_t byteLength, SkScalar x,
                                  SkScalar y, const SkPaint& paint) {
     if (byteLength) {
         NOTIFY_SETUP(this);
         this->writePaint(paint);
         if (this->needOpBytes(4 + SkAlign4(byteLength) + 2 * sizeof(SkScalar))) {
             this->writeOp(kDrawText_DrawOp);
             fWriter.write32(byteLength);
             fWriter.writePad(text, byteLength);
             fWriter.writeScalar(x);
             fWriter.writeScalar(y);
         }
     }
 }
 void SkGPipeCanvas::drawPosText(const void* text, size_t byteLength,
                                 const SkPoint pos[], const SkPaint& paint) {
     if (byteLength) {
         NOTIFY_SETUP(this);
         this->writePaint(paint);
         int count = paint.textToGlyphs(text, byteLength, NULL);
         if (this->needOpBytes(4 + SkAlign4(byteLength) + 4 + count * sizeof(SkPoint))) {
             this->writeOp(kDrawPosText_DrawOp);
             fWriter.write32(byteLength);
             fWriter.writePad(text, byteLength);
             fWriter.write32(count);
             fWriter.write(pos, count * sizeof(SkPoint));
         }
     }
 }
 void SkGPipeCanvas::drawPosTextH(const void* text, size_t byteLength,
                                  const SkScalar xpos[], SkScalar constY,
                                  const SkPaint& paint) {
     if (byteLength) {
         NOTIFY_SETUP(this);
         this->writePaint(paint);
         int count = paint.textToGlyphs(text, byteLength, NULL);
         if (this->needOpBytes(4 + SkAlign4(byteLength) + 4 + count * sizeof(SkScalar) + 4)) {
             this->writeOp(kDrawPosTextH_DrawOp);
             fWriter.write32(byteLength);
             fWriter.writePad(text, byteLength);
             fWriter.write32(count);
             fWriter.write(xpos, count * sizeof(SkScalar));
             fWriter.writeScalar(constY);
         }
     }
 }
 void SkGPipeCanvas::drawTextOnPath(const void* text, size_t byteLength,
                                    const SkPath& path, const SkMatrix* matrix,
                                    const SkPaint& paint) {
     if (byteLength) {
         NOTIFY_SETUP(this);
         unsigned flags = 0;
         size_t size = 4 + SkAlign4(byteLength) + path.writeToMemory(NULL);
         if (matrix) {
             flags |= kDrawTextOnPath_HasMatrix_DrawOpFlag;
             size += matrix->writeToMemory(NULL);
         }
         this->writePaint(paint);
         if (this->needOpBytes(size)) {
             this->writeOp(kDrawTextOnPath_DrawOp, flags, 0);
             fWriter.write32(byteLength);
             fWriter.writePad(text, byteLength);
             fWriter.writePath(path);
             if (matrix) {
                 fWriter.writeMatrix(*matrix);
             }
         }
     }
 }
 void SkGPipeCanvas::drawPicture(SkPicture& picture) {
     // we want to playback the picture into individual draw calls
     this->INHERITED::drawPicture(picture);
 }
 void SkGPipeCanvas::drawVertices(VertexMode vmode, int vertexCount,
                                  const SkPoint vertices[], const SkPoint texs[],
                                  const SkColor colors[], SkXfermode* xfer,
                                  const uint16_t indices[], int indexCount,
                                  const SkPaint& paint) {
     if (0 == vertexCount) {
         return;
     }
     NOTIFY_SETUP(this);
     size_t size = 4 + vertexCount * sizeof(SkPoint);
     this->writePaint(paint);
     unsigned flags = 0;
     if (texs) {
         flags |= kDrawVertices_HasTexs_DrawOpFlag;
         size += vertexCount * sizeof(SkPoint);
     }
     if (colors) {
         flags |= kDrawVertices_HasColors_DrawOpFlag;
         size += vertexCount * sizeof(SkColor);
     }
     if (indices && indexCount > 0) {
         flags |= kDrawVertices_HasIndices_DrawOpFlag;
         size += 4 + SkAlign4(indexCount * sizeof(uint16_t));
     }
     if (xfer && !SkXfermode::IsMode(xfer, SkXfermode::kModulate_Mode)) {
         flags |= kDrawVertices_HasXfermode_DrawOpFlag;
         size += sizeof(int32_t);    // mode enum
     }
     if (this->needOpBytes(size)) {
         this->writeOp(kDrawVertices_DrawOp, flags, 0);
         fWriter.write32(vmode);
         fWriter.write32(vertexCount);
         fWriter.write(vertices, vertexCount * sizeof(SkPoint));
         if (texs) {
             fWriter.write(texs, vertexCount * sizeof(SkPoint));
         }
         if (colors) {
             fWriter.write(colors, vertexCount * sizeof(SkColor));
         }
         if (flags & kDrawVertices_HasXfermode_DrawOpFlag) {
             SkXfermode::Mode mode = SkXfermode::kModulate_Mode;
             (void)xfer->asMode(&mode);
             fWriter.write32(mode);
         }
         if (indices && indexCount > 0) {
             fWriter.write32(indexCount);
             fWriter.writePad(indices, indexCount * sizeof(uint16_t));
         }
     }
 }
 void SkGPipeCanvas::drawData(const void* ptr, size_t size) {
     if (size && ptr) {
         NOTIFY_SETUP(this);
         unsigned data = 0;
         if (size < (1 << DRAWOPS_DATA_BITS)) {
             data = (unsigned)size;
         }
         if (this->needOpBytes(4 + SkAlign4(size))) {
             this->writeOp(kDrawData_DrawOp, 0, data);
             if (0 == data) {
                 fWriter.write32(size);
             }
             fWriter.writePad(ptr, size);
         }
     }
 }
 void SkGPipeCanvas::beginCommentGroup(const char* description) {
     // ignore for now
 }
 void SkGPipeCanvas::addComment(const char* kywd, const char* value) {
     // ignore for now
 }
 void SkGPipeCanvas::endCommentGroup() {
     // ignore for now
 }
 void SkGPipeCanvas::flushRecording(bool detachCurrentBlock) {
     doNotify();
     if (detachCurrentBlock) {
         // force a new block to be requested for the next recorded command
         fBlockSize = 0;
     }
 }
 size_t SkGPipeCanvas::freeMemoryIfPossible(size_t bytesToFree) {
     return (NULL == fBitmapHeap) ? 0 : fBitmapHeap->freeMemoryIfPossible(bytesToFree);
 }
 ///////////////////////////////////////////////////////////////////////////////
 template <typename T> uint32_t castToU32(T value) {
     union {
         T           fSrc;
         uint32_t    fDst;
     } data;
     data.fSrc = value;
     return data.fDst;
 }
 void SkGPipeCanvas::writePaint(const SkPaint& paint) {
     if (fDone) {
         return;
     }
     SkPaint& base = fPaint;
     uint32_t storage[32];
     uint32_t* ptr = storage;
     if (base.getFlags() != paint.getFlags()) {
         *ptr++ = PaintOp_packOpData(kFlags_PaintOp, paint.getFlags());
         base.setFlags(paint.getFlags());
     }
     if (base.getColor() != paint.getColor()) {
         *ptr++ = PaintOp_packOp(kColor_PaintOp);
         *ptr++ = paint.getColor();
         base.setColor(paint.getColor());
     }
     if (base.getStyle() != paint.getStyle()) {
         *ptr++ = PaintOp_packOpData(kStyle_PaintOp, paint.getStyle());
         base.setStyle(paint.getStyle());
     }
     if (base.getStrokeJoin() != paint.getStrokeJoin()) {
         *ptr++ = PaintOp_packOpData(kJoin_PaintOp, paint.getStrokeJoin());
         base.setStrokeJoin(paint.getStrokeJoin());
     }
     if (base.getStrokeCap() != paint.getStrokeCap()) {
         *ptr++ = PaintOp_packOpData(kCap_PaintOp, paint.getStrokeCap());
         base.setStrokeCap(paint.getStrokeCap());
     }
     if (base.getStrokeWidth() != paint.getStrokeWidth()) {
         *ptr++ = PaintOp_packOp(kWidth_PaintOp);
         *ptr++ = castToU32(paint.getStrokeWidth());
         base.setStrokeWidth(paint.getStrokeWidth());
     }
     if (base.getStrokeMiter() != paint.getStrokeMiter()) {
         *ptr++ = PaintOp_packOp(kMiter_PaintOp);
         *ptr++ = castToU32(paint.getStrokeMiter());
         base.setStrokeMiter(paint.getStrokeMiter());
     }
     if (base.getTextEncoding() != paint.getTextEncoding()) {
         *ptr++ = PaintOp_packOpData(kEncoding_PaintOp, paint.getTextEncoding());
         base.setTextEncoding(paint.getTextEncoding());
     }
     if (base.getHinting() != paint.getHinting()) {
         *ptr++ = PaintOp_packOpData(kHinting_PaintOp, paint.getHinting());
         base.setHinting(paint.getHinting());
     }
     if (base.getTextAlign() != paint.getTextAlign()) {
         *ptr++ = PaintOp_packOpData(kAlign_PaintOp, paint.getTextAlign());
         base.setTextAlign(paint.getTextAlign());
     }
     if (base.getTextSize() != paint.getTextSize()) {
         *ptr++ = PaintOp_packOp(kTextSize_PaintOp);
         *ptr++ = castToU32(paint.getTextSize());
         base.setTextSize(paint.getTextSize());
     }
     if (base.getTextScaleX() != paint.getTextScaleX()) {
         *ptr++ = PaintOp_packOp(kTextScaleX_PaintOp);
         *ptr++ = castToU32(paint.getTextScaleX());
         base.setTextScaleX(paint.getTextScaleX());
     }
     if (base.getTextSkewX() != paint.getTextSkewX()) {
         *ptr++ = PaintOp_packOp(kTextSkewX_PaintOp);
         *ptr++ = castToU32(paint.getTextSkewX());
         base.setTextSkewX(paint.getTextSkewX());
     }
     if (!SkTypeface::Equal(base.getTypeface(), paint.getTypeface())) {
         if (isCrossProcess(fFlags)) {
             uint32_t id = this->getTypefaceID(paint.getTypeface());
             *ptr++ = PaintOp_packOpData(kTypeface_PaintOp, id);
         } else if (this->needOpBytes(sizeof(void*))) {
             // Add to the set for ref counting.
             fTypefaceSet.add(paint.getTypeface());
             // It is safe to write the typeface to the stream before the rest
             // of the paint unless we ever send a kReset_PaintOp, which we
             // currently never do.
             this->writeOp(kSetTypeface_DrawOp);
             fWriter.writePtr(paint.getTypeface());
         }
         base.setTypeface(paint.getTypeface());
     }
     // This is a new paint, so all old flats can be safely purged, if necessary.
     fFlattenableHeap.markAllFlatsSafeToDelete();
     for (int i = 0; i < kCount_PaintFlats; i++) {
         int index = this->flattenToIndex(get_paintflat(paint, i), (PaintFlats)i);
         bool replaced = index < 0;
         if (replaced) {
             index = ~index;
         }
         // Store the index of any flat that needs to be kept. 0 means no flat.
         if (index > 0) {
             fFlattenableHeap.markFlatForKeeping(index);
         }
         SkASSERT(index >= 0 && index <= fFlatDictionary.count());
         if (index != fCurrFlatIndex[i] || replaced) {
             *ptr++ = PaintOp_packOpFlagData(kFlatIndex_PaintOp, i, index);
             fCurrFlatIndex[i] = index;
         }
     }
     size_t size = (char*)ptr - (char*)storage;
     if (size && this->needOpBytes(size)) {
         this->writeOp(kPaintOp_DrawOp, 0, size);
         fWriter.write(storage, size);
         for (size_t i = 0; i < size/4; i++) {
 //            SkDebugf("[%d] %08X\n", i, storage[i]);
         }
     }
     //
     //  Do these after we've written kPaintOp_DrawOp
     if (base.getAnnotation() != paint.getAnnotation()) {
         if (NULL == paint.getAnnotation()) {
             if (this->needOpBytes()) {
                 this->writeOp(kSetAnnotation_DrawOp, 0, 0);
             }
         } else {
             SkWriteBuffer buffer;
             paint.getAnnotation()->writeToBuffer(buffer);
             const size_t size = buffer.bytesWritten();
             if (this->needOpBytes(size)) {
                 this->writeOp(kSetAnnotation_DrawOp, 0, size);
                 buffer.writeToMemory(fWriter.reserve(size));
             }
         }
         base.setAnnotation(paint.getAnnotation());
     }
 }
 ///////////////////////////////////////////////////////////////////////////////
 #include "SkGPipe.h"
 SkGPipeController::~SkGPipeController() {
     SkSafeUnref(fCanvas);
 }
 void SkGPipeController::setCanvas(SkGPipeCanvas* canvas) {
     SkRefCnt_SafeAssign(fCanvas, canvas);
 }
 ///////////////////////////////////////////////////////////////////////////////
 SkGPipeWriter::SkGPipeWriter()
 : fWriter(0) {
     fCanvas = NULL;
 }
 SkGPipeWriter::~SkGPipeWriter() {
     this->endRecording();
 }
 SkCanvas* SkGPipeWriter::startRecording(SkGPipeController* controller, uint32_t flags,
                                         uint32_t width, uint32_t height) {
     if (NULL == fCanvas) {
         fWriter.reset(NULL, 0);
         fCanvas = SkNEW_ARGS(SkGPipeCanvas, (controller, &fWriter, flags, width, height));
     }
     controller->setCanvas(fCanvas);
     return fCanvas;
 }
 void SkGPipeWriter::endRecording() {
     if (fCanvas) {
         fCanvas->finish(true);
         fCanvas->unref();
         fCanvas = NULL;
     }
 }
 void SkGPipeWriter::flushRecording(bool detachCurrentBlock) {
     if (fCanvas) {
         fCanvas->flushRecording(detachCurrentBlock);
     }
 }
 size_t SkGPipeWriter::freeMemoryIfPossible(size_t bytesToFree) {
     if (fCanvas) {
         return fCanvas->freeMemoryIfPossible(bytesToFree);
     }
     return 0;
 }
 size_t SkGPipeWriter::storageAllocatedForRecording() const {
     return NULL == fCanvas ? 0 : fCanvas->storageAllocatedForRecording();
 }
 ///////////////////////////////////////////////////////////////////////////////
 BitmapShuttle::BitmapShuttle(SkGPipeCanvas* canvas) {
     SkASSERT(canvas != NULL);
     fCanvas = canvas;
     fCanvas->ref();
 }
 BitmapShuttle::~BitmapShuttle() {
     this->removeCanvas();
 }
 bool BitmapShuttle::insert(const SkBitmap& bitmap, int32_t slot) {
     SkASSERT(fCanvas != NULL);
     return fCanvas->shuttleBitmap(bitmap, slot);
 }
 void BitmapShuttle::removeCanvas() {
     if (NULL == fCanvas) {
         return;
     }
     fCanvas->unref();
     fCanvas = NULL;
 }

The Tor Browser / annotate

gfx/skia/trunk/src/pipe/SkGPipeWrite.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/pipe/SkGPipeWrite.cpp