| |
| /* |
| * 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 "SkCanvas.h" |
| #include "SkData.h" |
| #include "SkDevice.h" |
| #include "SkPaint.h" |
| #include "SkPathEffect.h" |
| #include "SkGPipe.h" |
| #include "SkGPipePriv.h" |
| #include "SkImageFilter.h" |
| #include "SkStream.h" |
| #include "SkTSearch.h" |
| #include "SkTypeface.h" |
| #include "SkWriter32.h" |
| #include "SkColorFilter.h" |
| #include "SkDrawLooper.h" |
| #include "SkMaskFilter.h" |
| #include "SkRasterizer.h" |
| #include "SkShader.h" |
| #include "SkOrderedWriteBuffer.h" |
| #include "SkPictureFlat.h" |
| |
| 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) : fNumFlatsToKeep(numFlatsToKeep) {} |
| |
| ~FlattenableHeap() { |
| fPointers.freeAll(); |
| } |
| |
| virtual void* allocThrow(size_t bytes) SK_OVERRIDE; |
| |
| virtual void unalloc(void* ptr) SK_OVERRIDE; |
| |
| 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; |
| }; |
| |
| 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; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| class FlatDictionary : public SkFlatDictionary<SkFlattenable> { |
| public: |
| FlatDictionary(FlattenableHeap* heap, SkFactorySet* factorySet) |
| : SkFlatDictionary<SkFlattenable>(heap, NULL, NULL, factorySet) { |
| fFlattenProc = &flattenFlattenableProc; |
| // No need to define fUnflattenProc since the writer will never |
| // unflatten the data. |
| } |
| static void flattenFlattenableProc(SkOrderedWriteBuffer& buffer, |
| const void* obj) { |
| buffer.writeFlattenable((SkFlattenable*)obj); |
| } |
| |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| /* |
| * Shared heap for storing large things that can be shared, for a stream |
| * used by multiple readers. |
| * TODO: Make the allocations all come from cross process safe address space |
| * TODO: Store paths (others?) |
| * TODO: Generalize the LRU caching mechanism |
| */ |
| class SharedHeap { |
| public: |
| SharedHeap(bool shallow, int numOfReaders) |
| : fBitmapCount(0) |
| , fMostRecentlyUsed(NULL) |
| , fLeastRecentlyUsed(NULL) |
| , fCanDoShallowCopies(shallow) |
| , fNumberOfReaders(numOfReaders) |
| , fBytesAllocated(0) {} |
| ~SharedHeap() { |
| BitmapInfo* iter = fMostRecentlyUsed; |
| while (iter != NULL) { |
| SkDEBUGCODE(fBytesAllocated -= (iter->fBytesAllocated + sizeof(BitmapInfo))); |
| BitmapInfo* next = iter->fLessRecentlyUsed; |
| SkDELETE(iter); |
| fBitmapCount--; |
| iter = next; |
| } |
| SkASSERT(0 == fBitmapCount); |
| SkASSERT(0 == fBytesAllocated); |
| } |
| |
| /* |
| * Get the approximate number of bytes allocated. |
| * |
| * Not exact. Some SkBitmaps may share SkPixelRefs, in which case only one |
| * SkBitmap will take the size of the SkPixelRef into account (the first |
| * one). It is possible that the one which accounts for the SkPixelRef has |
| * been removed, in which case we will no longer be counting those bytes. |
| */ |
| size_t bytesAllocated() { return fBytesAllocated; } |
| |
| /* |
| * Add a copy of a bitmap to the heap. |
| * @param bm The SkBitmap to be copied and placed in the heap. |
| * @return void* Pointer to the BitmapInfo stored in the heap, which |
| * contains a copy of the SkBitmap. If NULL, |
| * the bitmap could not be copied. |
| */ |
| const void* addBitmap(const SkBitmap& orig) { |
| const uint32_t genID = orig.getGenerationID(); |
| SkPixelRef* sharedPixelRef = NULL; |
| // When looking to see if we've previously used this bitmap, start at |
| // the end, assuming that the caller is more likely to reuse a recent |
| // one. |
| BitmapInfo* iter = fMostRecentlyUsed; |
| while (iter != NULL) { |
| if (genID == iter->fGenID) { |
| SkBitmap* storedBitmap = iter->fBitmap; |
| // TODO: Perhaps we can share code with |
| // SkPictureRecord::PixelRefDictionaryEntry/ |
| // BitmapIndexCacheEntry so we can do a binary search for a |
| // matching bitmap |
| if (orig.pixelRefOffset() != storedBitmap->pixelRefOffset() |
| || orig.width() != storedBitmap->width() |
| || orig.height() != storedBitmap->height()) { |
| // In this case, the bitmaps share a pixelRef, but have |
| // different offsets or sizes. Keep track of the other |
| // bitmap so that instead of making another copy of the |
| // pixelRef we can use the copy we already made. |
| sharedPixelRef = storedBitmap->pixelRef(); |
| break; |
| } |
| iter->addDraws(fNumberOfReaders); |
| this->setMostRecentlyUsed(iter); |
| return iter; |
| } |
| iter = iter->fLessRecentlyUsed; |
| } |
| SkAutoRef ar((SkRefCnt*)sharedPixelRef); |
| BitmapInfo* replace = this->bitmapToReplace(orig); |
| SkBitmap* copy; |
| // If the bitmap is mutable, we still need to do a deep copy, since the |
| // caller may modify it afterwards. That said, if the bitmap is mutable, |
| // but has no pixelRef, the copy constructor actually does a deep copy. |
| if (fCanDoShallowCopies && (orig.isImmutable() || !orig.pixelRef())) { |
| if (NULL == replace) { |
| copy = SkNEW_ARGS(SkBitmap, (orig)); |
| } else { |
| *replace->fBitmap = orig; |
| } |
| } else { |
| if (sharedPixelRef != NULL) { |
| if (NULL == replace) { |
| // Do a shallow copy of the bitmap to get the width, height, etc |
| copy = SkNEW_ARGS(SkBitmap, (orig)); |
| // Replace the pixelRef with the copy that was already made, and |
| // use the appropriate offset. |
| copy->setPixelRef(sharedPixelRef, orig.pixelRefOffset()); |
| } else { |
| *replace->fBitmap = orig; |
| replace->fBitmap->setPixelRef(sharedPixelRef, orig.pixelRefOffset()); |
| } |
| } else { |
| if (NULL == replace) { |
| copy = SkNEW(SkBitmap); |
| if (!orig.copyTo(copy, orig.getConfig())) { |
| delete copy; |
| return NULL; |
| } |
| } else { |
| if (!orig.copyTo(replace->fBitmap, orig.getConfig())) { |
| return NULL; |
| } |
| } |
| } |
| } |
| BitmapInfo* info; |
| if (NULL == replace) { |
| fBytesAllocated += sizeof(BitmapInfo); |
| info = SkNEW_ARGS(BitmapInfo, (copy, genID, fNumberOfReaders)); |
| fBitmapCount++; |
| } else { |
| fBytesAllocated -= replace->fBytesAllocated; |
| replace->fGenID = genID; |
| replace->addDraws(fNumberOfReaders); |
| info = replace; |
| } |
| // Always include the size of the SkBitmap struct. |
| info->fBytesAllocated = sizeof(SkBitmap); |
| // If the SkBitmap does not share an SkPixelRef with an SkBitmap already |
| // in the SharedHeap, also include the size of its pixels. |
| if (NULL == sharedPixelRef) { |
| info->fBytesAllocated += orig.getSize(); |
| } |
| fBytesAllocated += info->fBytesAllocated; |
| this->setMostRecentlyUsed(info); |
| return info; |
| } |
| private: |
| void setMostRecentlyUsed(BitmapInfo* info); |
| BitmapInfo* bitmapToReplace(const SkBitmap& bm) const; |
| |
| int fBitmapCount; |
| BitmapInfo* fLeastRecentlyUsed; |
| BitmapInfo* fMostRecentlyUsed; |
| const bool fCanDoShallowCopies; |
| const int fNumberOfReaders; |
| size_t fBytesAllocated; |
| }; |
| |
| // We just "used" info. Update our LRU accordingly |
| void SharedHeap::setMostRecentlyUsed(BitmapInfo* info) { |
| SkASSERT(info != NULL); |
| if (info == fMostRecentlyUsed) { |
| return; |
| } |
| // Remove info from its prior place, and make sure to cover the hole. |
| if (fLeastRecentlyUsed == info) { |
| SkASSERT(info->fMoreRecentlyUsed != NULL); |
| fLeastRecentlyUsed = info->fMoreRecentlyUsed; |
| } |
| if (info->fMoreRecentlyUsed != NULL) { |
| SkASSERT(fMostRecentlyUsed != info); |
| info->fMoreRecentlyUsed->fLessRecentlyUsed = info->fLessRecentlyUsed; |
| } |
| if (info->fLessRecentlyUsed != NULL) { |
| SkASSERT(fLeastRecentlyUsed != info); |
| info->fLessRecentlyUsed->fMoreRecentlyUsed = info->fMoreRecentlyUsed; |
| } |
| info->fMoreRecentlyUsed = NULL; |
| // Set up the head and tail pointers properly. |
| if (fMostRecentlyUsed != NULL) { |
| SkASSERT(NULL == fMostRecentlyUsed->fMoreRecentlyUsed); |
| fMostRecentlyUsed->fMoreRecentlyUsed = info; |
| info->fLessRecentlyUsed = fMostRecentlyUsed; |
| } |
| fMostRecentlyUsed = info; |
| if (NULL == fLeastRecentlyUsed) { |
| fLeastRecentlyUsed = info; |
| } |
| } |
| |
| /** |
| * Given a new bitmap to be added to the cache, return an existing one that |
| * should be removed to make room, or NULL if there is already room. |
| */ |
| BitmapInfo* SharedHeap::bitmapToReplace(const SkBitmap& bm) const { |
| // Arbitrarily set a limit of 5. We should test to find the best tradeoff |
| // between time and space. A lower limit means that we use less space, but |
| // it also means that we may have to insert the same bitmap into the heap |
| // multiple times (depending on the input), potentially taking more time. |
| // On the other hand, a lower limit also means searching through our stored |
| // bitmaps takes less time. |
| if (fBitmapCount > 5) { |
| BitmapInfo* iter = fLeastRecentlyUsed; |
| while (iter != NULL) { |
| if (iter->drawCount() > 0) { |
| // If the least recently used bitmap has not been drawn by some |
| // reader, then a more recently used one will not have been |
| // drawn yet either. |
| return NULL; |
| } |
| if (bm.pixelRef() != NULL |
| && bm.pixelRef() == iter->fBitmap->pixelRef()) { |
| // Do not replace a bitmap with a new one using the same |
| // pixel ref. Instead look for a different one that will |
| // potentially free up more space. |
| iter = iter->fMoreRecentlyUsed; |
| } else { |
| return iter; |
| } |
| } |
| } |
| return NULL; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| class SkGPipeCanvas : public SkCanvas { |
| public: |
| SkGPipeCanvas(SkGPipeController*, SkWriter32*, SkFactorySet*, uint32_t flags); |
| virtual ~SkGPipeCanvas(); |
| |
| void finish() { |
| if (!fDone) { |
| if (this->needOpBytes()) { |
| this->writeOp(kDone_DrawOp); |
| this->doNotify(); |
| } |
| fDone = true; |
| } |
| } |
| |
| void flushRecording(bool detachCurrentBlock); |
| |
| size_t storageAllocatedForRecording() { |
| return fSharedHeap.bytesAllocated(); |
| } |
| |
| // overrides from SkCanvas |
| virtual int save(SaveFlags) SK_OVERRIDE; |
| virtual int saveLayer(const SkRect* bounds, const SkPaint*, |
| SaveFlags) SK_OVERRIDE; |
| virtual void restore() SK_OVERRIDE; |
| virtual bool isDrawingToLayer() const SK_OVERRIDE; |
| virtual bool translate(SkScalar dx, SkScalar dy) SK_OVERRIDE; |
| virtual bool scale(SkScalar sx, SkScalar sy) SK_OVERRIDE; |
| virtual bool rotate(SkScalar degrees) SK_OVERRIDE; |
| virtual bool skew(SkScalar sx, SkScalar sy) SK_OVERRIDE; |
| virtual bool concat(const SkMatrix& matrix) SK_OVERRIDE; |
| virtual void setMatrix(const SkMatrix& matrix) SK_OVERRIDE; |
| virtual bool clipRect(const SkRect& rect, SkRegion::Op op, |
| bool doAntiAlias = false) SK_OVERRIDE; |
| virtual bool clipPath(const SkPath& path, SkRegion::Op op, |
| bool doAntiAlias = false) SK_OVERRIDE; |
| virtual bool clipRegion(const SkRegion& region, SkRegion::Op op) 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 drawRect(const SkRect& rect, 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 drawBitmapRect(const SkBitmap&, const SkIRect* src, |
| const SkRect& dst, const SkPaint*) 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; |
| |
| private: |
| enum { |
| kNoSaveLayer = -1, |
| }; |
| int fFirstSaveLayerStackLevel; |
| SharedHeap fSharedHeap; |
| SkGPipeController* fController; |
| SkWriter32& fWriter; |
| size_t fBlockSize; // amount allocated for writer |
| size_t fBytesNotified; |
| bool fDone; |
| 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.size() - fBytesNotified; |
| if (bytes > 0) { |
| fController->notifyWritten(bytes); |
| fBytesNotified += bytes; |
| } |
| } |
| } |
| |
| // These are only used when in cross process, but with no shared address |
| // space, so bitmaps are flattened. |
| FlattenableHeap fBitmapHeap; |
| SkBitmapDictionary fBitmapDictionary; |
| int flattenToIndex(const SkBitmap&); |
| |
| FlattenableHeap fFlattenableHeap; |
| FlatDictionary fFlatDictionary; |
| int fCurrFlatIndex[kCount_PaintFlats]; |
| int flattenToIndex(SkFlattenable* obj, PaintFlats); |
| |
| 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; |
| }; |
| |
| int SkGPipeCanvas::flattenToIndex(const SkBitmap & bitmap) { |
| SkASSERT(shouldFlattenBitmaps(fFlags)); |
| uint32_t flags = SkFlattenableWriteBuffer::kInlineFactoryNames_Flag |
| | SkFlattenableWriteBuffer::kCrossProcess_Flag; |
| bool added, replaced; |
| const SkFlatData* flat = fBitmapDictionary.findAndReplace( |
| bitmap, flags, fBitmapHeap.flatToReplace(), &added, &replaced); |
| |
| int index = flat->index(); |
| if (added && this->needOpBytes(flat->flatSize())) { |
| this->writeOp(kDef_Bitmap_DrawOp, 0, index); |
| fWriter.write(flat->data(), flat->flatSize()); |
| } |
| return index; |
| } |
| |
| // 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) { |
| if (NULL == obj) { |
| return 0; |
| } |
| |
| uint32_t writeBufferFlags; |
| if (SkToBool(fFlags & SkGPipeWriter::kCrossProcess_Flag)) { |
| writeBufferFlags = (SkFlattenableWriteBuffer::kInlineFactoryNames_Flag |
| | SkFlattenableWriteBuffer::kCrossProcess_Flag); |
| } else { |
| // Needed for bitmap shaders. |
| writeBufferFlags = SkFlattenableWriteBuffer::kForceFlattenBitmapPixels_Flag; |
| } |
| |
| bool added, replaced; |
| const SkFlatData* flat = fFlatDictionary.findAndReplace( |
| *obj, writeBufferFlags, fFlattenableHeap.flatToReplace(), &added, &replaced); |
| int index = flat->index(); |
| if (added && this->needOpBytes(flat->flatSize())) { |
| this->writeOp(kDef_Flattenable_DrawOp, paintflat, index); |
| fWriter.write(flat->data(), flat->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, SkFactorySet* fset, uint32_t flags) |
| : fSharedHeap(!(flags & SkGPipeWriter::kCrossProcess_Flag), controller->numberOfReaders()) |
| , fWriter(*writer), fFlags(flags) |
| , fBitmapHeap(BITMAPS_TO_KEEP), fBitmapDictionary(&fBitmapHeap, NULL, NULL, fset) |
| , fFlattenableHeap(FLATTENABLES_TO_KEEP), fFlatDictionary(&fFlattenableHeap, fset) { |
| fController = controller; |
| fDone = false; |
| fBlockSize = 0; // need first block from controller |
| fBytesNotified = 0; |
| fFirstSaveLayerStackLevel = kNoSaveLayer; |
| sk_bzero(fCurrFlatIndex, sizeof(fCurrFlatIndex)); |
| |
| // we need a device to limit our clip |
| // should the caller give us the bounds? |
| // We don't allocate pixels for the bitmap |
| SkBitmap bitmap; |
| bitmap.setConfig(SkBitmap::kARGB_8888_Config, 32767, 32767); |
| SkDevice* device = SkNEW_ARGS(SkDevice, (bitmap)); |
| this->setDevice(device)->unref(); |
| // Tell the reader the appropriate flags to use. |
| if (this->needOpBytes()) { |
| this->writeOp(kReportFlags_DrawOp, fFlags, 0); |
| } |
| } |
| |
| SkGPipeCanvas::~SkGPipeCanvas() { |
| this->finish(); |
| } |
| |
| bool SkGPipeCanvas::needOpBytes(size_t needed) { |
| if (fDone) { |
| return false; |
| } |
| |
| needed += 4; // size of DrawOp atom |
| if (fWriter.size() + 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) { |
| fDone = true; |
| return false; |
| } |
| 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) |
| |
| int SkGPipeCanvas::save(SaveFlags flags) { |
| NOTIFY_SETUP(this); |
| if (this->needOpBytes()) { |
| this->writeOp(kSave_DrawOp, 0, flags); |
| } |
| return this->INHERITED::save(flags); |
| } |
| |
| int SkGPipeCanvas::saveLayer(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(); |
| } |
| // we just pass on the save, so we don't create a layer |
| return this->INHERITED::save(saveFlags); |
| } |
| |
| void SkGPipeCanvas::restore() { |
| NOTIFY_SETUP(this); |
| if (this->needOpBytes()) { |
| this->writeOp(kRestore_DrawOp); |
| } |
| |
| this->INHERITED::restore(); |
| |
| if (this->getSaveCount() == fFirstSaveLayerStackLevel){ |
| fFirstSaveLayerStackLevel = kNoSaveLayer; |
| } |
| } |
| |
| bool SkGPipeCanvas::isDrawingToLayer() const { |
| return kNoSaveLayer != fFirstSaveLayerStackLevel; |
| } |
| |
| bool SkGPipeCanvas::translate(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); |
| } |
| } |
| return this->INHERITED::translate(dx, dy); |
| } |
| |
| bool SkGPipeCanvas::scale(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); |
| } |
| } |
| return this->INHERITED::scale(sx, sy); |
| } |
| |
| bool SkGPipeCanvas::rotate(SkScalar degrees) { |
| if (degrees) { |
| NOTIFY_SETUP(this); |
| if (this->needOpBytes(sizeof(SkScalar))) { |
| this->writeOp(kRotate_DrawOp); |
| fWriter.writeScalar(degrees); |
| } |
| } |
| return this->INHERITED::rotate(degrees); |
| } |
| |
| bool SkGPipeCanvas::skew(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); |
| } |
| } |
| return this->INHERITED::skew(sx, sy); |
| } |
| |
| bool SkGPipeCanvas::concat(const SkMatrix& matrix) { |
| if (!matrix.isIdentity()) { |
| NOTIFY_SETUP(this); |
| if (this->needOpBytes(matrix.writeToMemory(NULL))) { |
| this->writeOp(kConcat_DrawOp); |
| fWriter.writeMatrix(matrix); |
| } |
| } |
| return this->INHERITED::concat(matrix); |
| } |
| |
| void SkGPipeCanvas::setMatrix(const SkMatrix& matrix) { |
| NOTIFY_SETUP(this); |
| if (this->needOpBytes(matrix.writeToMemory(NULL))) { |
| this->writeOp(kSetMatrix_DrawOp); |
| fWriter.writeMatrix(matrix); |
| } |
| this->INHERITED::setMatrix(matrix); |
| } |
| |
| bool SkGPipeCanvas::clipRect(const SkRect& rect, SkRegion::Op rgnOp, |
| bool doAntiAlias) { |
| NOTIFY_SETUP(this); |
| if (this->needOpBytes(sizeof(SkRect)) + sizeof(bool)) { |
| this->writeOp(kClipRect_DrawOp, 0, rgnOp); |
| fWriter.writeRect(rect); |
| fWriter.writeBool(doAntiAlias); |
| } |
| return this->INHERITED::clipRect(rect, rgnOp, doAntiAlias); |
| } |
| |
| bool SkGPipeCanvas::clipPath(const SkPath& path, SkRegion::Op rgnOp, |
| bool doAntiAlias) { |
| NOTIFY_SETUP(this); |
| if (this->needOpBytes(path.writeToMemory(NULL)) + sizeof(bool)) { |
| this->writeOp(kClipPath_DrawOp, 0, rgnOp); |
| fWriter.writePath(path); |
| fWriter.writeBool(doAntiAlias); |
| } |
| // we just pass on the bounds of the path |
| return this->INHERITED::clipRect(path.getBounds(), rgnOp, doAntiAlias); |
| } |
| |
| bool SkGPipeCanvas::clipRegion(const SkRegion& region, SkRegion::Op rgnOp) { |
| NOTIFY_SETUP(this); |
| if (this->needOpBytes(region.writeToMemory(NULL))) { |
| this->writeOp(kClipRegion_DrawOp, 0, rgnOp); |
| fWriter.writeRegion(region); |
| } |
| return this->INHERITED::clipRegion(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::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::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); |
| } |
| } |
| |
| void SkGPipeCanvas::drawBitmap(const SkBitmap& bm, SkScalar left, SkScalar top, |
| const SkPaint* paint) { |
| bool flatten = shouldFlattenBitmaps(fFlags); |
| const void* ptr = 0; |
| int bitmapIndex = 0; |
| if (flatten) { |
| bitmapIndex = this->flattenToIndex(bm); |
| } else { |
| ptr = fSharedHeap.addBitmap(bm); |
| if (NULL == ptr) { |
| return; |
| } |
| } |
| |
| NOTIFY_SETUP(this); |
| if (paint) { |
| this->writePaint(*paint); |
| } |
| |
| size_t opBytesNeeded = sizeof(SkScalar) * 2 + sizeof(bool); |
| if (!flatten) { |
| opBytesNeeded += sizeof(void*); |
| } |
| if (this->needOpBytes(opBytesNeeded)) { |
| this->writeOp(kDrawBitmap_DrawOp, 0, bitmapIndex); |
| if (!flatten) { |
| fWriter.writePtr(const_cast<void*>(ptr)); |
| } |
| fWriter.writeBool(paint != NULL); |
| fWriter.writeScalar(left); |
| fWriter.writeScalar(top); |
| } |
| } |
| |
| void SkGPipeCanvas::drawBitmapRect(const SkBitmap& bm, const SkIRect* src, |
| const SkRect& dst, const SkPaint* paint) { |
| bool flatten = shouldFlattenBitmaps(fFlags); |
| const void* ptr = 0; |
| int bitmapIndex = 0; |
| if (flatten) { |
| bitmapIndex = this->flattenToIndex(bm); |
| } else { |
| ptr = fSharedHeap.addBitmap(bm); |
| if (NULL == ptr) { |
| return; |
| } |
| } |
| |
| NOTIFY_SETUP(this); |
| if (paint) { |
| this->writePaint(*paint); |
| } |
| |
| size_t opBytesNeeded = sizeof(SkRect) + sizeof(bool) * 2; |
| bool hasSrc = src != NULL; |
| if (hasSrc) { |
| opBytesNeeded += sizeof(int32_t) * 4; |
| } |
| if (!flatten) { |
| opBytesNeeded += sizeof(void*); |
| } |
| if (this->needOpBytes(opBytesNeeded)) { |
| this->writeOp(kDrawBitmapRect_DrawOp, 0, bitmapIndex); |
| if (!flatten) { |
| fWriter.writePtr(const_cast<void*>(ptr)); |
| } |
| fWriter.writeBool(paint != NULL); |
| fWriter.writeBool(hasSrc); |
| if (hasSrc) { |
| fWriter.write32(src->fLeft); |
| fWriter.write32(src->fTop); |
| fWriter.write32(src->fRight); |
| fWriter.write32(src->fBottom); |
| } |
| fWriter.writeRect(dst); |
| } |
| } |
| |
| void SkGPipeCanvas::drawBitmapMatrix(const SkBitmap&, const SkMatrix&, |
| const SkPaint*) { |
| UNIMPLEMENTED |
| } |
| |
| void SkGPipeCanvas::drawBitmapNine(const SkBitmap& bm, const SkIRect& center, |
| const SkRect& dst, const SkPaint* paint) { |
| bool flatten = shouldFlattenBitmaps(fFlags); |
| const void* ptr = 0; |
| int bitmapIndex = 0; |
| if (flatten) { |
| bitmapIndex = this->flattenToIndex(bm); |
| } else { |
| ptr = fSharedHeap.addBitmap(bm); |
| if (NULL == ptr) { |
| return; |
| } |
| } |
| |
| NOTIFY_SETUP(this); |
| if (paint) { |
| this->writePaint(*paint); |
| } |
| |
| size_t opBytesNeeded = sizeof(int32_t) * 4 + sizeof(bool) + sizeof(SkRect); |
| if (!flatten) { |
| opBytesNeeded += sizeof(void*); |
| } |
| if (this->needOpBytes(opBytesNeeded)) { |
| this->writeOp(kDrawBitmapNine_DrawOp, 0, bitmapIndex); |
| if (!flatten) { |
| fWriter.writePtr(const_cast<void*>(ptr)); |
| } |
| fWriter.writeBool(paint != NULL); |
| 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) { |
| bool flatten = shouldFlattenBitmaps(fFlags); |
| const void* ptr = 0; |
| int bitmapIndex = 0; |
| if (flatten) { |
| bitmapIndex = this->flattenToIndex(bm); |
| } else { |
| ptr = fSharedHeap.addBitmap(bm); |
| if (NULL == ptr) { |
| return; |
| } |
| } |
| |
| NOTIFY_SETUP(this); |
| if (paint) { |
| this->writePaint(*paint); |
| } |
| |
| size_t opBytesNeeded = sizeof(int32_t) * 2 + sizeof(bool); |
| if (!flatten) { |
| opBytesNeeded += sizeof(void*); |
| } |
| if (this->needOpBytes(opBytesNeeded)) { |
| this->writeOp(kDrawSprite_DrawOp, 0, bitmapIndex); |
| if (!flatten) { |
| fWriter.writePtr(const_cast<void*>(ptr)); |
| } |
| fWriter.writeBool(paint != NULL); |
| 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 mode, int vertexCount, |
| const SkPoint vertices[], const SkPoint texs[], |
| const SkColor colors[], SkXfermode*, |
| 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 (this->needOpBytes(size)) { |
| this->writeOp(kDrawVertices_DrawOp, flags, 0); |
| fWriter.write32(mode); |
| 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)); |
| } |
| |
| // TODO: flatten xfermode |
| |
| 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::flushRecording(bool detachCurrentBlock) { |
| doNotify(); |
| if (detachCurrentBlock) { |
| // force a new block to be requested for the next recorded command |
| fBlockSize = 0; |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| 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) { |
| 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 (SkToBool(fFlags & SkGPipeWriter::kCrossProcess_Flag)) { |
| 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]); |
| } |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| #include "SkGPipe.h" |
| |
| SkGPipeController::~SkGPipeController() { |
| SkSafeUnref(fCanvas); |
| } |
| |
| void SkGPipeController::setCanvas(SkGPipeCanvas* canvas) { |
| SkRefCnt_SafeAssign(fCanvas, canvas); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| SkGPipeWriter::SkGPipeWriter() |
| : fFactorySet(SkNEW(SkFactorySet)) |
| , fWriter(0) { |
| fCanvas = NULL; |
| } |
| |
| SkGPipeWriter::~SkGPipeWriter() { |
| this->endRecording(); |
| fFactorySet->unref(); |
| } |
| |
| SkCanvas* SkGPipeWriter::startRecording(SkGPipeController* controller, uint32_t flags) { |
| if (NULL == fCanvas) { |
| fWriter.reset(NULL, 0); |
| fFactorySet->reset(); |
| fCanvas = SkNEW_ARGS(SkGPipeCanvas, (controller, &fWriter, |
| (flags & kCrossProcess_Flag) ? |
| fFactorySet : NULL, flags)); |
| } |
| controller->setCanvas(fCanvas); |
| return fCanvas; |
| } |
| |
| void SkGPipeWriter::endRecording() { |
| if (fCanvas) { |
| fCanvas->finish(); |
| fCanvas->unref(); |
| fCanvas = NULL; |
| } |
| } |
| |
| void SkGPipeWriter::flushRecording(bool detachCurrentBlock){ |
| fCanvas->flushRecording(detachCurrentBlock); |
| } |
| |
| size_t SkGPipeWriter::storageAllocatedForRecording() { |
| return NULL == fCanvas ? 0 : fCanvas->storageAllocatedForRecording(); |
| } |
| |