| /* |
| Copyright 2011 Google Inc. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| |
| #include "SkCanvas.h" |
| #include "SkDevice.h" |
| #include "SkPaint.h" |
| #include "SkGPipe.h" |
| #include "SkGPipePriv.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" |
| |
| 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 kXfermode_PaintFlat: return paint.getXfermode(); |
| } |
| SkASSERT(!"never gets here"); |
| return NULL; |
| } |
| |
| static size_t estimateFlattenSize(const SkPath& path) { |
| int n = path.countPoints(); |
| size_t bytes = 3 * sizeof(int32_t); |
| bytes += n * sizeof(SkPoint); |
| bytes += SkAlign4(n + 2); // verbs: add 2 for move/close extras |
| |
| #ifdef SK_DEBUG |
| { |
| SkWriter32 writer(1024); |
| path.flatten(writer); |
| SkASSERT(writer.size() <= bytes); |
| } |
| #endif |
| return bytes; |
| } |
| |
| 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); |
| writer->write(stream.getStream(), size); |
| } |
| return 4 + size; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| class SkGPipeCanvas : public SkCanvas { |
| public: |
| SkGPipeCanvas(SkGPipeController*, SkWriter32*, SkFactorySet*); |
| virtual ~SkGPipeCanvas(); |
| |
| void finish() { |
| if (!fDone) { |
| this->writeOp(kDone_DrawOp); |
| this->doNotify(); |
| fDone = true; |
| } |
| } |
| |
| // overrides from SkCanvas |
| virtual int save(SaveFlags); |
| virtual int saveLayer(const SkRect* bounds, const SkPaint*, SaveFlags); |
| virtual void restore(); |
| virtual bool translate(SkScalar dx, SkScalar dy); |
| virtual bool scale(SkScalar sx, SkScalar sy); |
| virtual bool rotate(SkScalar degrees); |
| virtual bool skew(SkScalar sx, SkScalar sy); |
| virtual bool concat(const SkMatrix& matrix); |
| virtual void setMatrix(const SkMatrix& matrix); |
| virtual bool clipRect(const SkRect& rect, SkRegion::Op op); |
| virtual bool clipPath(const SkPath& path, SkRegion::Op op); |
| virtual bool clipRegion(const SkRegion& region, SkRegion::Op op); |
| virtual void clear(SkColor); |
| virtual void drawPaint(const SkPaint& paint); |
| virtual void drawPoints(PointMode, size_t count, const SkPoint pts[], |
| const SkPaint&); |
| virtual void drawRect(const SkRect& rect, const SkPaint&); |
| virtual void drawPath(const SkPath& path, const SkPaint&); |
| virtual void drawBitmap(const SkBitmap&, SkScalar left, SkScalar top, |
| const SkPaint*); |
| virtual void drawBitmapRect(const SkBitmap&, const SkIRect* src, |
| const SkRect& dst, const SkPaint*); |
| virtual void drawBitmapMatrix(const SkBitmap&, const SkMatrix&, |
| const SkPaint*); |
| virtual void drawSprite(const SkBitmap&, int left, int top, |
| const SkPaint*); |
| virtual void drawText(const void* text, size_t byteLength, SkScalar x, |
| SkScalar y, const SkPaint&); |
| virtual void drawPosText(const void* text, size_t byteLength, |
| const SkPoint pos[], const SkPaint&); |
| virtual void drawPosTextH(const void* text, size_t byteLength, |
| const SkScalar xpos[], SkScalar constY, const SkPaint&); |
| virtual void drawTextOnPath(const void* text, size_t byteLength, |
| const SkPath& path, const SkMatrix* matrix, |
| const SkPaint&); |
| virtual void drawPicture(SkPicture& picture); |
| virtual void drawShape(SkShape*); |
| virtual void drawVertices(VertexMode, int vertexCount, |
| const SkPoint vertices[], const SkPoint texs[], |
| const SkColor colors[], SkXfermode*, |
| const uint16_t indices[], int indexCount, |
| const SkPaint&); |
| virtual void drawData(const void*, size_t); |
| |
| private: |
| SkFactorySet* fFactorySet; // optional, only used if cross-process |
| SkGPipeController* fController; |
| SkWriter32& fWriter; |
| size_t fBlockSize; // amount allocated for writer |
| size_t fBytesNotified; |
| bool fDone; |
| |
| 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; |
| fController->notifyWritten(bytes); |
| fBytesNotified += bytes; |
| } |
| } |
| |
| struct FlatData { |
| uint32_t fIndex; // always > 0 |
| uint32_t fSize; |
| |
| void* data() { return (char*)this + sizeof(*this); } |
| |
| static int Compare(const FlatData* a, const FlatData* b) { |
| return memcmp(&a->fSize, &b->fSize, a->fSize + sizeof(a->fSize)); |
| } |
| }; |
| SkTDArray<FlatData*> fFlatArray; |
| 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; |
| }; |
| |
| // return 0 for NULL (or unflattenable obj), or index-base-1 |
| int SkGPipeCanvas::flattenToIndex(SkFlattenable* obj, PaintFlats paintflat) { |
| if (NULL == obj) { |
| return 0; |
| } |
| |
| SkFlattenable::Factory fact = obj->getFactory(); |
| if (NULL == fact) { |
| return 0; |
| } |
| |
| if (fFactorySet) { |
| uint32_t id = fFactorySet->find((void*)fact); |
| if (0 == id) { |
| const char* name = SkFlattenable::FactoryToName(fact); |
| if (NULL == name) { |
| return 0; |
| } |
| size_t len = strlen(name); |
| size_t size = SkWriter32::WriteStringSize(name, len); |
| if (!this->needOpBytes(size)) { |
| return 0; |
| } |
| unsigned id = fFactorySet->add(fact); |
| this->writeOp(kName_Flattenable_DrawOp, paintflat, id); |
| fWriter.writeString(name, len); |
| } |
| } |
| |
| SkFlattenableWriteBuffer tmpWriter(1024); |
| tmpWriter.setFactoryRecorder(fFactorySet); |
| |
| tmpWriter.writeFlattenable(obj); |
| size_t len = tmpWriter.size(); |
| size_t allocSize = len + sizeof(FlatData); |
| |
| SkAutoSMalloc<1024> storage(allocSize); |
| FlatData* flat = (FlatData*)storage.get(); |
| flat->fSize = len; |
| tmpWriter.flatten(flat->data()); |
| |
| int index = SkTSearch<FlatData>((const FlatData**)fFlatArray.begin(), |
| fFlatArray.count(), flat, sizeof(flat), |
| &FlatData::Compare); |
| if (index < 0) { |
| index = ~index; |
| FlatData* copy = (FlatData*)sk_malloc_throw(allocSize); |
| memcpy(copy, flat, allocSize); |
| *fFlatArray.insert(index) = copy; |
| // call this after the insert, so that count() will have been grown |
| copy->fIndex = fFlatArray.count(); |
| // SkDebugf("--- add flattenable[%d] size=%d index=%d\n", paintflat, len, copy->fIndex); |
| |
| if (this->needOpBytes(len)) { |
| this->writeOp(kDef_Flattenable_DrawOp, paintflat, copy->fIndex); |
| fWriter.write(copy->data(), len); |
| } |
| } |
| return fFlatArray[index]->fIndex; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| #define MIN_BLOCK_SIZE (16 * 1024) |
| |
| SkGPipeCanvas::SkGPipeCanvas(SkGPipeController* controller, |
| SkWriter32* writer, SkFactorySet* fset) |
| : fWriter(*writer), fFactorySet(fset) { |
| fController = controller; |
| fDone = false; |
| fBlockSize = 0; // need first block from controller |
| sk_bzero(fCurrFlatIndex, sizeof(fCurrFlatIndex)); |
| |
| // we need a device to limit our clip |
| // should the caller give us the bounds? |
| SkBitmap bitmap; |
| bitmap.setConfig(SkBitmap::kARGB_8888_Config, 32767, 32767); |
| SkDevice* device = SkNEW_ARGS(SkDevice, (this, bitmap, false)); |
| this->setDevice(device)->unref(); |
| } |
| |
| SkGPipeCanvas::~SkGPipeCanvas() { |
| this->finish(); |
| |
| fFlatArray.freeAll(); |
| } |
| |
| bool SkGPipeCanvas::needOpBytes(size_t needed) { |
| if (fDone) { |
| return false; |
| } |
| |
| needed += 4; // size of DrawOp atom |
| if (fWriter.size() + needed > fBlockSize) { |
| void* block = fController->requestBlock(MIN_BLOCK_SIZE, &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); |
| } |
| } |
| |
| // 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(); |
| } |
| |
| 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.flatten(NULL))) { |
| this->writeOp(kConcat_DrawOp); |
| SkWriteMatrix(&fWriter, matrix); |
| } |
| } |
| return this->INHERITED::concat(matrix); |
| } |
| |
| void SkGPipeCanvas::setMatrix(const SkMatrix& matrix) { |
| NOTIFY_SETUP(this); |
| if (this->needOpBytes(matrix.flatten(NULL))) { |
| this->writeOp(kSetMatrix_DrawOp); |
| SkWriteMatrix(&fWriter, matrix); |
| } |
| this->INHERITED::setMatrix(matrix); |
| } |
| |
| bool SkGPipeCanvas::clipRect(const SkRect& rect, SkRegion::Op rgnOp) { |
| NOTIFY_SETUP(this); |
| if (this->needOpBytes(sizeof(SkRect))) { |
| this->writeOp(kClipRect_DrawOp, 0, rgnOp); |
| fWriter.writeRect(rect); |
| } |
| return this->INHERITED::clipRect(rect, rgnOp); |
| } |
| |
| bool SkGPipeCanvas::clipPath(const SkPath& path, SkRegion::Op rgnOp) { |
| NOTIFY_SETUP(this); |
| if (this->needOpBytes(estimateFlattenSize(path))) { |
| this->writeOp(kClipPath_DrawOp, 0, rgnOp); |
| path.flatten(fWriter); |
| } |
| // we just pass on the bounds of the path |
| return this->INHERITED::clipRect(path.getBounds(), rgnOp); |
| } |
| |
| bool SkGPipeCanvas::clipRegion(const SkRegion& region, SkRegion::Op rgnOp) { |
| NOTIFY_SETUP(this); |
| if (this->needOpBytes(region.flatten(NULL))) { |
| this->writeOp(kClipRegion_DrawOp, 0, rgnOp); |
| SkWriteRegion(&fWriter, 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(estimateFlattenSize(path))) { |
| this->writeOp(kDrawPath_DrawOp); |
| path.flatten(fWriter); |
| } |
| } |
| |
| void SkGPipeCanvas::drawBitmap(const SkBitmap&, SkScalar left, SkScalar top, |
| const SkPaint*) { |
| UNIMPLEMENTED |
| } |
| |
| void SkGPipeCanvas::drawBitmapRect(const SkBitmap&, const SkIRect* src, |
| const SkRect& dst, const SkPaint*) { |
| UNIMPLEMENTED |
| } |
| |
| void SkGPipeCanvas::drawBitmapMatrix(const SkBitmap&, const SkMatrix&, |
| const SkPaint*) { |
| UNIMPLEMENTED |
| } |
| |
| void SkGPipeCanvas::drawSprite(const SkBitmap&, int left, int top, |
| const SkPaint*) { |
| UNIMPLEMENTED |
| } |
| |
| 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) + estimateFlattenSize(path); |
| if (matrix) { |
| flags |= kDrawTextOnPath_HasMatrix_DrawOpFlag; |
| size += matrix->flatten(NULL); |
| } |
| this->writePaint(paint); |
| if (this->needOpBytes(size)) { |
| this->writeOp(kDrawTextOnPath_DrawOp, flags, 0); |
| |
| fWriter.write32(byteLength); |
| fWriter.writePad(text, byteLength); |
| |
| path.flatten(fWriter); |
| if (matrix) { |
| SkWriteMatrix(&fWriter, *matrix); |
| } |
| } |
| } |
| } |
| |
| void SkGPipeCanvas::drawPicture(SkPicture& picture) { |
| // we want to playback the picture into individual draw calls |
| this->INHERITED::drawPicture(picture); |
| } |
| |
| void SkGPipeCanvas::drawShape(SkShape* shape) { |
| UNIMPLEMENTED |
| } |
| |
| 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); |
| } |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| 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())) { |
| uint32_t id = this->getTypefaceID(paint.getTypeface()); |
| *ptr++ = PaintOp_packOpData(kTypeface_PaintOp, id); |
| base.setTypeface(paint.getTypeface()); |
| } |
| |
| for (int i = 0; i < kCount_PaintFlats; i++) { |
| int index = this->flattenToIndex(get_paintflat(paint, i), (PaintFlats)i); |
| SkASSERT(index >= 0 && index <= fFlatArray.count()); |
| if (index != fCurrFlatIndex[i]) { |
| *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" |
| |
| SkGPipeWriter::SkGPipeWriter() : fWriter(0) { |
| fCanvas = NULL; |
| } |
| |
| SkGPipeWriter::~SkGPipeWriter() { |
| this->endRecording(); |
| SkSafeUnref(fCanvas); |
| } |
| |
| 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)); |
| } |
| return fCanvas; |
| } |
| |
| void SkGPipeWriter::endRecording() { |
| if (fCanvas) { |
| fCanvas->finish(); |
| fCanvas->unref(); |
| fCanvas = NULL; |
| } |
| } |
| |
