|  | /* | 
|  | * Copyright 2014 Google Inc. | 
|  | * | 
|  | * Use of this source code is governed by a BSD-style license that can be | 
|  | * found in the LICENSE file. | 
|  | */ | 
|  |  | 
|  | #include "SkRecorder.h" | 
|  |  | 
|  | #include "SkBigPicture.h" | 
|  | #include "SkCanvasPriv.h" | 
|  | #include "SkImage.h" | 
|  | #include "SkPatchUtils.h" | 
|  | #include "SkPicture.h" | 
|  | #include "SkSurface.h" | 
|  | #include "SkTo.h" | 
|  |  | 
|  | #include <new> | 
|  |  | 
|  | SkDrawableList::~SkDrawableList() { | 
|  | fArray.unrefAll(); | 
|  | } | 
|  |  | 
|  | SkBigPicture::SnapshotArray* SkDrawableList::newDrawableSnapshot() { | 
|  | const int count = fArray.count(); | 
|  | if (0 == count) { | 
|  | return nullptr; | 
|  | } | 
|  | SkAutoTMalloc<const SkPicture*> pics(count); | 
|  | for (int i = 0; i < count; ++i) { | 
|  | pics[i] = fArray[i]->newPictureSnapshot(); | 
|  | } | 
|  | return new SkBigPicture::SnapshotArray(pics.release(), count); | 
|  | } | 
|  |  | 
|  | void SkDrawableList::append(SkDrawable* drawable) { | 
|  | *fArray.append() = SkRef(drawable); | 
|  | } | 
|  |  | 
|  | /////////////////////////////////////////////////////////////////////////////////////////////// | 
|  |  | 
|  | SkRecorder::SkRecorder(SkRecord* record, int width, int height, SkMiniRecorder* mr) | 
|  | : SkCanvasVirtualEnforcer<SkNoDrawCanvas>(width, height) | 
|  | , fDrawPictureMode(Record_DrawPictureMode) | 
|  | , fApproxBytesUsedBySubPictures(0) | 
|  | , fRecord(record) | 
|  | , fMiniRecorder(mr) {} | 
|  |  | 
|  | SkRecorder::SkRecorder(SkRecord* record, const SkRect& bounds, SkMiniRecorder* mr) | 
|  | : SkCanvasVirtualEnforcer<SkNoDrawCanvas>(bounds.roundOut()) | 
|  | , fDrawPictureMode(Record_DrawPictureMode) | 
|  | , fApproxBytesUsedBySubPictures(0) | 
|  | , fRecord(record) | 
|  | , fMiniRecorder(mr) {} | 
|  |  | 
|  | void SkRecorder::reset(SkRecord* record, const SkRect& bounds, | 
|  | DrawPictureMode dpm, SkMiniRecorder* mr) { | 
|  | this->forgetRecord(); | 
|  | fDrawPictureMode = dpm; | 
|  | fRecord = record; | 
|  | SkIRect rounded = bounds.roundOut(); | 
|  | this->resetCanvas(rounded.right(), rounded.bottom()); | 
|  | fMiniRecorder = mr; | 
|  | } | 
|  |  | 
|  | void SkRecorder::forgetRecord() { | 
|  | fDrawableList.reset(nullptr); | 
|  | fApproxBytesUsedBySubPictures = 0; | 
|  | fRecord = nullptr; | 
|  | } | 
|  |  | 
|  | // To make appending to fRecord a little less verbose. | 
|  | template<typename T, typename... Args> | 
|  | void SkRecorder::append(Args&&... args) { | 
|  | if (fMiniRecorder) { | 
|  | this->flushMiniRecorder(); | 
|  | } | 
|  | new (fRecord->append<T>()) T{std::forward<Args>(args)...}; | 
|  | } | 
|  |  | 
|  | #define TRY_MINIRECORDER(method, ...) \ | 
|  | if (fMiniRecorder && fMiniRecorder->method(__VA_ARGS__)) return | 
|  |  | 
|  | // For methods which must call back into SkNoDrawCanvas. | 
|  | #define INHERITED(method, ...) this->SkNoDrawCanvas::method(__VA_ARGS__) | 
|  |  | 
|  | // Use copy() only for optional arguments, to be copied if present or skipped if not. | 
|  | // (For most types we just pass by value and let copy constructors do their thing.) | 
|  | template <typename T> | 
|  | T* SkRecorder::copy(const T* src) { | 
|  | if (nullptr == src) { | 
|  | return nullptr; | 
|  | } | 
|  | return new (fRecord->alloc<T>()) T(*src); | 
|  | } | 
|  |  | 
|  | // This copy() is for arrays. | 
|  | // It will work with POD or non-POD, though currently we only use it for POD. | 
|  | template <typename T> | 
|  | T* SkRecorder::copy(const T src[], size_t count) { | 
|  | if (nullptr == src) { | 
|  | return nullptr; | 
|  | } | 
|  | T* dst = fRecord->alloc<T>(count); | 
|  | for (size_t i = 0; i < count; i++) { | 
|  | new (dst + i) T(src[i]); | 
|  | } | 
|  | return dst; | 
|  | } | 
|  |  | 
|  | // Specialization for copying strings, using memcpy. | 
|  | // This measured around 2x faster for copying code points, | 
|  | // but I found no corresponding speedup for other arrays. | 
|  | template <> | 
|  | char* SkRecorder::copy(const char src[], size_t count) { | 
|  | if (nullptr == src) { | 
|  | return nullptr; | 
|  | } | 
|  | char* dst = fRecord->alloc<char>(count); | 
|  | memcpy(dst, src, count); | 
|  | return dst; | 
|  | } | 
|  |  | 
|  | // As above, assuming and copying a terminating \0. | 
|  | template <> | 
|  | char* SkRecorder::copy(const char* src) { | 
|  | return this->copy(src, strlen(src)+1); | 
|  | } | 
|  |  | 
|  | void SkRecorder::flushMiniRecorder() { | 
|  | if (fMiniRecorder) { | 
|  | SkMiniRecorder* mr = fMiniRecorder; | 
|  | fMiniRecorder = nullptr;  // Needs to happen before flushAndReset() or we recurse forever. | 
|  | mr->flushAndReset(this); | 
|  | } | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawPaint(const SkPaint& paint) { | 
|  | this->append<SkRecords::DrawPaint>(paint); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawPoints(PointMode mode, | 
|  | size_t count, | 
|  | const SkPoint pts[], | 
|  | const SkPaint& paint) { | 
|  | this->append<SkRecords::DrawPoints>(paint, mode, SkToUInt(count), this->copy(pts, count)); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawRect(const SkRect& rect, const SkPaint& paint) { | 
|  | TRY_MINIRECORDER(drawRect, rect, paint); | 
|  | this->append<SkRecords::DrawRect>(paint, rect); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawEdgeAARect(const SkRect& rect, SkCanvas::QuadAAFlags aa, SkColor color, | 
|  | SkBlendMode mode) { | 
|  | this->append<SkRecords::DrawEdgeAARect>(rect, aa, color, mode); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawRegion(const SkRegion& region, const SkPaint& paint) { | 
|  | this->append<SkRecords::DrawRegion>(paint, region); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawOval(const SkRect& oval, const SkPaint& paint) { | 
|  | this->append<SkRecords::DrawOval>(paint, oval); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawArc(const SkRect& oval, SkScalar startAngle, SkScalar sweepAngle, | 
|  | bool useCenter, const SkPaint& paint) { | 
|  | this->append<SkRecords::DrawArc>(paint, oval, startAngle, sweepAngle, useCenter); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawRRect(const SkRRect& rrect, const SkPaint& paint) { | 
|  | this->append<SkRecords::DrawRRect>(paint, rrect); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawDRRect(const SkRRect& outer, const SkRRect& inner, const SkPaint& paint) { | 
|  | this->append<SkRecords::DrawDRRect>(paint, outer, inner); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawDrawable(SkDrawable* drawable, const SkMatrix* matrix) { | 
|  | if (fDrawPictureMode == Record_DrawPictureMode) { | 
|  | if (!fDrawableList) { | 
|  | fDrawableList.reset(new SkDrawableList); | 
|  | } | 
|  | fDrawableList->append(drawable); | 
|  | this->append<SkRecords::DrawDrawable>(this->copy(matrix), drawable->getBounds(), fDrawableList->count() - 1); | 
|  | } else { | 
|  | SkASSERT(fDrawPictureMode == Playback_DrawPictureMode); | 
|  | drawable->draw(this, matrix); | 
|  | } | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawPath(const SkPath& path, const SkPaint& paint) { | 
|  | TRY_MINIRECORDER(drawPath, path, paint); | 
|  | this->append<SkRecords::DrawPath>(paint, path); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawBitmap(const SkBitmap& bitmap, | 
|  | SkScalar left, | 
|  | SkScalar top, | 
|  | const SkPaint* paint) { | 
|  | sk_sp<SkImage> image = SkImage::MakeFromBitmap(bitmap); | 
|  | if (image) { | 
|  | this->onDrawImage(image.get(), left, top, paint); | 
|  | } | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawBitmapRect(const SkBitmap& bitmap, | 
|  | const SkRect* src, | 
|  | const SkRect& dst, | 
|  | const SkPaint* paint, | 
|  | SrcRectConstraint constraint) { | 
|  | sk_sp<SkImage> image = SkImage::MakeFromBitmap(bitmap); | 
|  | if (image) { | 
|  | this->onDrawImageRect(image.get(), src, dst, paint, constraint); | 
|  | } | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawBitmapNine(const SkBitmap& bitmap, | 
|  | const SkIRect& center, | 
|  | const SkRect& dst, | 
|  | const SkPaint* paint) { | 
|  | sk_sp<SkImage> image = SkImage::MakeFromBitmap(bitmap); | 
|  | if (image) { | 
|  | this->onDrawImageNine(image.get(), center, dst, paint); | 
|  | } | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawBitmapLattice(const SkBitmap& bitmap, const Lattice& lattice, | 
|  | const SkRect& dst, const SkPaint* paint) { | 
|  | sk_sp<SkImage> image = SkImage::MakeFromBitmap(bitmap); | 
|  | this->onDrawImageLattice(image.get(), lattice, dst, paint); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawImage(const SkImage* image, SkScalar left, SkScalar top, | 
|  | const SkPaint* paint) { | 
|  | this->append<SkRecords::DrawImage>(this->copy(paint), sk_ref_sp(image), left, top); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawImageRect(const SkImage* image, const SkRect* src, const SkRect& dst, | 
|  | const SkPaint* paint, SrcRectConstraint constraint) { | 
|  | this->append<SkRecords::DrawImageRect>(this->copy(paint), sk_ref_sp(image), this->copy(src), dst, constraint); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawImageNine(const SkImage* image, const SkIRect& center, | 
|  | const SkRect& dst, const SkPaint* paint) { | 
|  | this->append<SkRecords::DrawImageNine>(this->copy(paint), sk_ref_sp(image), center, dst); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawImageLattice(const SkImage* image, const Lattice& lattice, const SkRect& dst, | 
|  | const SkPaint* paint) { | 
|  | int flagCount = lattice.fRectTypes ? (lattice.fXCount + 1) * (lattice.fYCount + 1) : 0; | 
|  | SkASSERT(lattice.fBounds); | 
|  | this->append<SkRecords::DrawImageLattice>(this->copy(paint), sk_ref_sp(image), | 
|  | lattice.fXCount, this->copy(lattice.fXDivs, lattice.fXCount), | 
|  | lattice.fYCount, this->copy(lattice.fYDivs, lattice.fYCount), | 
|  | flagCount, this->copy(lattice.fRectTypes, flagCount), | 
|  | this->copy(lattice.fColors, flagCount), *lattice.fBounds, dst); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawImageSet(const ImageSetEntry set[], int count, SkFilterQuality filterQuality, | 
|  | SkBlendMode mode) { | 
|  | SkAutoTArray<ImageSetEntry> setCopy(count); | 
|  | for (int i = 0; i < count; ++i) { | 
|  | setCopy[i] = set[i]; | 
|  | } | 
|  | this->append<SkRecords::DrawImageSet>(std::move(setCopy), count, filterQuality, mode); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, | 
|  | const SkPaint& paint) { | 
|  | TRY_MINIRECORDER(drawTextBlob, blob, x, y, paint); | 
|  | this->append<SkRecords::DrawTextBlob>(paint, sk_ref_sp(blob), x, y); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawPicture(const SkPicture* pic, const SkMatrix* matrix, const SkPaint* paint) { | 
|  | if (fDrawPictureMode == Record_DrawPictureMode) { | 
|  | fApproxBytesUsedBySubPictures += pic->approximateBytesUsed(); | 
|  | this->append<SkRecords::DrawPicture>(this->copy(paint), sk_ref_sp(pic), matrix ? *matrix : SkMatrix::I()); | 
|  | } else { | 
|  | SkASSERT(fDrawPictureMode == Playback_DrawPictureMode); | 
|  | SkAutoCanvasMatrixPaint acmp(this, matrix, paint, pic->cullRect()); | 
|  | pic->playback(this); | 
|  | } | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawVerticesObject(const SkVertices* vertices, const SkVertices::Bone bones[], | 
|  | int boneCount, SkBlendMode bmode, const SkPaint& paint) { | 
|  | this->append<SkRecords::DrawVertices>(paint, | 
|  | sk_ref_sp(const_cast<SkVertices*>(vertices)), | 
|  | this->copy(bones, boneCount), | 
|  | boneCount, | 
|  | bmode); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawPatch(const SkPoint cubics[12], const SkColor colors[4], | 
|  | const SkPoint texCoords[4], SkBlendMode bmode, | 
|  | const SkPaint& paint) { | 
|  | this->append<SkRecords::DrawPatch>(paint, | 
|  | cubics ? this->copy(cubics, SkPatchUtils::kNumCtrlPts) : nullptr, | 
|  | colors ? this->copy(colors, SkPatchUtils::kNumCorners) : nullptr, | 
|  | texCoords ? this->copy(texCoords, SkPatchUtils::kNumCorners) : nullptr, | 
|  | bmode); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawAtlas(const SkImage* atlas, const SkRSXform xform[], const SkRect tex[], | 
|  | const SkColor colors[], int count, SkBlendMode mode, | 
|  | const SkRect* cull, const SkPaint* paint) { | 
|  | this->append<SkRecords::DrawAtlas>(this->copy(paint), | 
|  | sk_ref_sp(atlas), | 
|  | this->copy(xform, count), | 
|  | this->copy(tex, count), | 
|  | this->copy(colors, count), | 
|  | count, | 
|  | mode, | 
|  | this->copy(cull)); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawShadowRec(const SkPath& path, const SkDrawShadowRec& rec) { | 
|  | this->append<SkRecords::DrawShadowRec>(path, rec); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onDrawAnnotation(const SkRect& rect, const char key[], SkData* value) { | 
|  | this->append<SkRecords::DrawAnnotation>(rect, SkString(key), sk_ref_sp(value)); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onFlush() { | 
|  | this->append<SkRecords::Flush>(); | 
|  | } | 
|  |  | 
|  | void SkRecorder::willSave() { | 
|  | this->append<SkRecords::Save>(); | 
|  | } | 
|  |  | 
|  | SkCanvas::SaveLayerStrategy SkRecorder::getSaveLayerStrategy(const SaveLayerRec& rec) { | 
|  | this->append<SkRecords::SaveLayer>(this->copy(rec.fBounds) | 
|  | , this->copy(rec.fPaint) | 
|  | , sk_ref_sp(rec.fBackdrop) | 
|  | , sk_ref_sp(rec.fClipMask) | 
|  | , this->copy(rec.fClipMatrix) | 
|  | , rec.fSaveLayerFlags); | 
|  | return SkCanvas::kNoLayer_SaveLayerStrategy; | 
|  | } | 
|  |  | 
|  | bool SkRecorder::onDoSaveBehind(const SkRect* subset) { | 
|  | this->append<SkRecords::SaveBehind>(this->copy(subset)); | 
|  | return false; | 
|  | } | 
|  |  | 
|  | void SkRecorder::didRestore() { | 
|  | this->append<SkRecords::Restore>(this->getTotalMatrix()); | 
|  | } | 
|  |  | 
|  | void SkRecorder::didConcat(const SkMatrix& matrix) { | 
|  | this->append<SkRecords::Concat>(matrix); | 
|  | } | 
|  |  | 
|  | void SkRecorder::didSetMatrix(const SkMatrix& matrix) { | 
|  | this->append<SkRecords::SetMatrix>(matrix); | 
|  | } | 
|  |  | 
|  | void SkRecorder::didTranslate(SkScalar dx, SkScalar dy) { | 
|  | this->append<SkRecords::Translate>(dx, dy); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onClipRect(const SkRect& rect, SkClipOp op, ClipEdgeStyle edgeStyle) { | 
|  | INHERITED(onClipRect, rect, op, edgeStyle); | 
|  | SkRecords::ClipOpAndAA opAA(op, kSoft_ClipEdgeStyle == edgeStyle); | 
|  | this->append<SkRecords::ClipRect>(rect, opAA); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onClipRRect(const SkRRect& rrect, SkClipOp op, ClipEdgeStyle edgeStyle) { | 
|  | INHERITED(onClipRRect, rrect, op, edgeStyle); | 
|  | SkRecords::ClipOpAndAA opAA(op, kSoft_ClipEdgeStyle == edgeStyle); | 
|  | this->append<SkRecords::ClipRRect>(rrect, opAA); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onClipPath(const SkPath& path, SkClipOp op, ClipEdgeStyle edgeStyle) { | 
|  | INHERITED(onClipPath, path, op, edgeStyle); | 
|  | SkRecords::ClipOpAndAA opAA(op, kSoft_ClipEdgeStyle == edgeStyle); | 
|  | this->append<SkRecords::ClipPath>(path, opAA); | 
|  | } | 
|  |  | 
|  | void SkRecorder::onClipRegion(const SkRegion& deviceRgn, SkClipOp op) { | 
|  | INHERITED(onClipRegion, deviceRgn, op); | 
|  | this->append<SkRecords::ClipRegion>(deviceRgn, op); | 
|  | } | 
|  |  | 
|  | sk_sp<SkSurface> SkRecorder::onNewSurface(const SkImageInfo&, const SkSurfaceProps&) { | 
|  | return nullptr; | 
|  | } |