| |
| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| |
| #include "SkColorPriv.h" |
| #include "SkDebugCanvas.h" |
| #include "SkDrawCommand.h" |
| #include "SkDrawFilter.h" |
| #include "SkDevice.h" |
| #include "SkXfermode.h" |
| |
| SkDebugCanvas::SkDebugCanvas(int width, int height) |
| : INHERITED(width, height) |
| , fPicture(NULL) |
| , fWidth(width) |
| , fHeight(height) |
| , fFilter(false) |
| , fMegaVizMode(false) |
| , fIndex(0) |
| , fOverdrawViz(false) |
| , fOverdrawFilter(NULL) |
| , fOverrideTexFiltering(false) |
| , fTexOverrideFilter(NULL) |
| , fOutstandingSaveCount(0) { |
| fUserMatrix.reset(); |
| |
| // SkPicturePlayback uses the base-class' quickReject calls to cull clipped |
| // operations. This can lead to problems in the debugger which expects all |
| // the operations in the captured skp to appear in the debug canvas. To |
| // circumvent this we create a wide open clip here (an empty clip rect |
| // is not sufficient). |
| // Internally, the SkRect passed to clipRect is converted to an SkIRect and |
| // rounded out. The following code creates a nearly maximal rect that will |
| // not get collapsed by the coming conversions (Due to precision loss the |
| // inset has to be surprisingly large). |
| SkIRect largeIRect = SkIRect::MakeLargest(); |
| largeIRect.inset(1024, 1024); |
| SkRect large = SkRect::Make(largeIRect); |
| #ifdef SK_DEBUG |
| large.roundOut(&largeIRect); |
| SkASSERT(!largeIRect.isEmpty()); |
| #endif |
| // call the base class' version to avoid adding a draw command |
| this->INHERITED::onClipRect(large, SkRegion::kReplace_Op, kHard_ClipEdgeStyle); |
| } |
| |
| SkDebugCanvas::~SkDebugCanvas() { |
| fCommandVector.deleteAll(); |
| SkSafeUnref(fOverdrawFilter); |
| SkSafeUnref(fTexOverrideFilter); |
| } |
| |
| void SkDebugCanvas::addDrawCommand(SkDrawCommand* command) { |
| command->setOffset(this->getOpID()); |
| fCommandVector.push(command); |
| } |
| |
| void SkDebugCanvas::draw(SkCanvas* canvas) { |
| if (!fCommandVector.isEmpty()) { |
| this->drawTo(canvas, fCommandVector.count() - 1); |
| } |
| } |
| |
| void SkDebugCanvas::applyUserTransform(SkCanvas* canvas) { |
| canvas->concat(fUserMatrix); |
| } |
| |
| int SkDebugCanvas::getCommandAtPoint(int x, int y, int index) { |
| SkBitmap bitmap; |
| bitmap.allocPixels(SkImageInfo::MakeN32Premul(1, 1)); |
| |
| SkCanvas canvas(bitmap); |
| canvas.translate(SkIntToScalar(-x), SkIntToScalar(-y)); |
| applyUserTransform(&canvas); |
| |
| int layer = 0; |
| SkColor prev = bitmap.getColor(0,0); |
| for (int i = 0; i < index; i++) { |
| if (fCommandVector[i]->isVisible()) { |
| fCommandVector[i]->execute(&canvas); |
| } |
| if (prev != bitmap.getColor(0,0)) { |
| layer = i; |
| } |
| prev = bitmap.getColor(0,0); |
| } |
| return layer; |
| } |
| |
| class OverdrawXfermode : public SkXfermode { |
| public: |
| virtual SkPMColor xferColor(SkPMColor src, SkPMColor dst) const SK_OVERRIDE { |
| // This table encodes the color progression of the overdraw visualization |
| static const SkPMColor gTable[] = { |
| SkPackARGB32(0x00, 0x00, 0x00, 0x00), |
| SkPackARGB32(0xFF, 128, 158, 255), |
| SkPackARGB32(0xFF, 170, 185, 212), |
| SkPackARGB32(0xFF, 213, 195, 170), |
| SkPackARGB32(0xFF, 255, 192, 127), |
| SkPackARGB32(0xFF, 255, 185, 85), |
| SkPackARGB32(0xFF, 255, 165, 42), |
| SkPackARGB32(0xFF, 255, 135, 0), |
| SkPackARGB32(0xFF, 255, 95, 0), |
| SkPackARGB32(0xFF, 255, 50, 0), |
| SkPackARGB32(0xFF, 255, 0, 0) |
| }; |
| |
| for (size_t i = 0; i < SK_ARRAY_COUNT(gTable)-1; ++i) { |
| if (gTable[i] == dst) { |
| return gTable[i+1]; |
| } |
| } |
| |
| return gTable[SK_ARRAY_COUNT(gTable)-1]; |
| } |
| |
| virtual Factory getFactory() const SK_OVERRIDE { return NULL; } |
| #ifndef SK_IGNORE_TO_STRING |
| virtual void toString(SkString* str) const { str->set("OverdrawXfermode"); } |
| #endif |
| }; |
| |
| // The OverdrawFilter modifies every paint to use an SkProcXfermode which |
| // in turn invokes OverdrawXferModeProc |
| class SkOverdrawFilter : public SkDrawFilter { |
| public: |
| SkOverdrawFilter() { |
| fXferMode = SkNEW(OverdrawXfermode); |
| } |
| |
| virtual ~SkOverdrawFilter() { |
| delete fXferMode; |
| } |
| |
| virtual bool filter(SkPaint* p, Type) SK_OVERRIDE { |
| p->setXfermode(fXferMode); |
| return true; |
| } |
| |
| protected: |
| SkXfermode* fXferMode; |
| |
| private: |
| typedef SkDrawFilter INHERITED; |
| }; |
| |
| // SkTexOverrideFilter modifies every paint to use the specified |
| // texture filtering mode |
| class SkTexOverrideFilter : public SkDrawFilter { |
| public: |
| SkTexOverrideFilter() : fFilterLevel(SkPaint::kNone_FilterLevel) { |
| } |
| |
| void setFilterLevel(SkPaint::FilterLevel filterLevel) { |
| fFilterLevel = filterLevel; |
| } |
| |
| virtual bool filter(SkPaint* p, Type) SK_OVERRIDE { |
| p->setFilterLevel(fFilterLevel); |
| return true; |
| } |
| |
| protected: |
| SkPaint::FilterLevel fFilterLevel; |
| |
| private: |
| typedef SkDrawFilter INHERITED; |
| }; |
| |
| class SkDebugClipVisitor : public SkCanvas::ClipVisitor { |
| public: |
| SkDebugClipVisitor(SkCanvas* canvas) : fCanvas(canvas) {} |
| |
| virtual void clipRect(const SkRect& r, SkRegion::Op, bool doAA) SK_OVERRIDE { |
| SkPaint p; |
| p.setColor(SK_ColorRED); |
| p.setStyle(SkPaint::kStroke_Style); |
| p.setAntiAlias(doAA); |
| fCanvas->drawRect(r, p); |
| } |
| virtual void clipRRect(const SkRRect& rr, SkRegion::Op, bool doAA) SK_OVERRIDE { |
| SkPaint p; |
| p.setColor(SK_ColorGREEN); |
| p.setStyle(SkPaint::kStroke_Style); |
| p.setAntiAlias(doAA); |
| fCanvas->drawRRect(rr, p); |
| } |
| virtual void clipPath(const SkPath& path, SkRegion::Op, bool doAA) SK_OVERRIDE { |
| SkPaint p; |
| p.setColor(SK_ColorBLUE); |
| p.setStyle(SkPaint::kStroke_Style); |
| p.setAntiAlias(doAA); |
| fCanvas->drawPath(path, p); |
| } |
| |
| protected: |
| SkCanvas* fCanvas; |
| |
| private: |
| typedef SkCanvas::ClipVisitor INHERITED; |
| }; |
| |
| // set up the saveLayer commands so that the active ones |
| // return true in their 'active' method |
| void SkDebugCanvas::markActiveCommands(int index) { |
| fActiveLayers.rewind(); |
| fActiveCulls.rewind(); |
| |
| for (int i = 0; i < fCommandVector.count(); ++i) { |
| fCommandVector[i]->setActive(false); |
| } |
| |
| for (int i = 0; i < index; ++i) { |
| SkDrawCommand::Action result = fCommandVector[i]->action(); |
| if (SkDrawCommand::kPushLayer_Action == result) { |
| fActiveLayers.push(fCommandVector[i]); |
| } else if (SkDrawCommand::kPopLayer_Action == result) { |
| fActiveLayers.pop(); |
| } else if (SkDrawCommand::kPushCull_Action == result) { |
| fActiveCulls.push(fCommandVector[i]); |
| } else if (SkDrawCommand::kPopCull_Action == result) { |
| fActiveCulls.pop(); |
| } |
| } |
| |
| for (int i = 0; i < fActiveLayers.count(); ++i) { |
| fActiveLayers[i]->setActive(true); |
| } |
| |
| for (int i = 0; i < fActiveCulls.count(); ++i) { |
| fActiveCulls[i]->setActive(true); |
| } |
| } |
| |
| void SkDebugCanvas::drawTo(SkCanvas* canvas, int index) { |
| SkASSERT(!fCommandVector.isEmpty()); |
| SkASSERT(index < fCommandVector.count()); |
| int i = 0; |
| |
| // This only works assuming the canvas and device are the same ones that |
| // were previously drawn into because they need to preserve all saves |
| // and restores. |
| // The visibility filter also requires a full re-draw - otherwise we can |
| // end up drawing the filter repeatedly. |
| if (fIndex < index && !fFilter && !fMegaVizMode) { |
| i = fIndex + 1; |
| } else { |
| for (int j = 0; j < fOutstandingSaveCount; j++) { |
| canvas->restore(); |
| } |
| canvas->clear(SK_ColorTRANSPARENT); |
| canvas->resetMatrix(); |
| SkRect rect = SkRect::MakeWH(SkIntToScalar(fWidth), |
| SkIntToScalar(fHeight)); |
| canvas->clipRect(rect, SkRegion::kReplace_Op ); |
| applyUserTransform(canvas); |
| fOutstandingSaveCount = 0; |
| } |
| |
| // The setting of the draw filter has to go here (rather than in |
| // SkRasterWidget) due to the canvas restores this class performs. |
| // Since the draw filter is stored in the layer stack if we |
| // call setDrawFilter on anything but the root layer odd things happen. |
| if (fOverdrawViz) { |
| if (NULL == fOverdrawFilter) { |
| fOverdrawFilter = new SkOverdrawFilter; |
| } |
| |
| if (fOverdrawFilter != canvas->getDrawFilter()) { |
| canvas->setDrawFilter(fOverdrawFilter); |
| } |
| } else if (fOverrideTexFiltering) { |
| if (NULL == fTexOverrideFilter) { |
| fTexOverrideFilter = new SkTexOverrideFilter; |
| } |
| |
| if (fTexOverrideFilter != canvas->getDrawFilter()) { |
| canvas->setDrawFilter(fTexOverrideFilter); |
| } |
| } else { |
| canvas->setDrawFilter(NULL); |
| } |
| |
| if (fMegaVizMode) { |
| this->markActiveCommands(index); |
| } |
| |
| for (; i <= index; i++) { |
| if (i == index && fFilter) { |
| SkPaint p; |
| p.setColor(0xAAFFFFFF); |
| canvas->save(); |
| canvas->resetMatrix(); |
| SkRect mask; |
| mask.set(SkIntToScalar(0), SkIntToScalar(0), |
| SkIntToScalar(fWidth), SkIntToScalar(fHeight)); |
| canvas->clipRect(mask, SkRegion::kReplace_Op, false); |
| canvas->drawRectCoords(SkIntToScalar(0), SkIntToScalar(0), |
| SkIntToScalar(fWidth), SkIntToScalar(fHeight), p); |
| canvas->restore(); |
| } |
| |
| if (fCommandVector[i]->isVisible()) { |
| if (fMegaVizMode && fCommandVector[i]->active()) { |
| // "active" commands execute their visualization behaviors: |
| // All active saveLayers get replaced with saves so all draws go to the |
| // visible canvas. |
| // All active culls draw their cull box |
| fCommandVector[i]->vizExecute(canvas); |
| } else { |
| fCommandVector[i]->execute(canvas); |
| } |
| |
| fCommandVector[i]->trackSaveState(&fOutstandingSaveCount); |
| } |
| } |
| |
| if (fMegaVizMode) { |
| SkRect r = SkRect::MakeWH(SkIntToScalar(fWidth), SkIntToScalar(fHeight)); |
| r.outset(SK_Scalar1, SK_Scalar1); |
| |
| canvas->save(); |
| // nuke the CTM |
| canvas->setMatrix(SkMatrix::I()); |
| // turn off clipping |
| canvas->clipRect(r, SkRegion::kReplace_Op); |
| |
| // visualize existing clips |
| SkDebugClipVisitor visitor(canvas); |
| |
| canvas->replayClips(&visitor); |
| |
| canvas->restore(); |
| } |
| fMatrix = canvas->getTotalMatrix(); |
| if (!canvas->getClipDeviceBounds(&fClip)) { |
| fClip.setEmpty(); |
| } |
| fIndex = index; |
| } |
| |
| void SkDebugCanvas::deleteDrawCommandAt(int index) { |
| SkASSERT(index < fCommandVector.count()); |
| delete fCommandVector[index]; |
| fCommandVector.remove(index); |
| } |
| |
| SkDrawCommand* SkDebugCanvas::getDrawCommandAt(int index) { |
| SkASSERT(index < fCommandVector.count()); |
| return fCommandVector[index]; |
| } |
| |
| void SkDebugCanvas::setDrawCommandAt(int index, SkDrawCommand* command) { |
| SkASSERT(index < fCommandVector.count()); |
| delete fCommandVector[index]; |
| fCommandVector[index] = command; |
| } |
| |
| SkTDArray<SkString*>* SkDebugCanvas::getCommandInfo(int index) { |
| SkASSERT(index < fCommandVector.count()); |
| return fCommandVector[index]->Info(); |
| } |
| |
| bool SkDebugCanvas::getDrawCommandVisibilityAt(int index) { |
| SkASSERT(index < fCommandVector.count()); |
| return fCommandVector[index]->isVisible(); |
| } |
| |
| const SkTDArray <SkDrawCommand*>& SkDebugCanvas::getDrawCommands() const { |
| return fCommandVector; |
| } |
| |
| SkTDArray <SkDrawCommand*>& SkDebugCanvas::getDrawCommands() { |
| return fCommandVector; |
| } |
| |
| // TODO(chudy): Free command string memory. |
| SkTArray<SkString>* SkDebugCanvas::getDrawCommandsAsStrings() const { |
| SkTArray<SkString>* commandString = new SkTArray<SkString>(fCommandVector.count()); |
| if (!fCommandVector.isEmpty()) { |
| for (int i = 0; i < fCommandVector.count(); i ++) { |
| commandString->push_back() = fCommandVector[i]->toString(); |
| } |
| } |
| return commandString; |
| } |
| |
| SkTDArray<size_t>* SkDebugCanvas::getDrawCommandOffsets() const { |
| SkTDArray<size_t>* commandOffsets = new SkTDArray<size_t>; |
| if (!fCommandVector.isEmpty()) { |
| for (int i = 0; i < fCommandVector.count(); i ++) { |
| *commandOffsets->push() = fCommandVector[i]->offset(); |
| } |
| } |
| return commandOffsets; |
| } |
| |
| void SkDebugCanvas::overrideTexFiltering(bool overrideTexFiltering, SkPaint::FilterLevel level) { |
| if (NULL == fTexOverrideFilter) { |
| fTexOverrideFilter = new SkTexOverrideFilter; |
| } |
| |
| fOverrideTexFiltering = overrideTexFiltering; |
| fTexOverrideFilter->setFilterLevel(level); |
| } |
| |
| void SkDebugCanvas::clear(SkColor color) { |
| this->addDrawCommand(new SkClearCommand(color)); |
| } |
| |
| void SkDebugCanvas::onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle edgeStyle) { |
| this->addDrawCommand(new SkClipPathCommand(path, op, kSoft_ClipEdgeStyle == edgeStyle)); |
| } |
| |
| void SkDebugCanvas::onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle edgeStyle) { |
| this->addDrawCommand(new SkClipRectCommand(rect, op, kSoft_ClipEdgeStyle == edgeStyle)); |
| } |
| |
| void SkDebugCanvas::onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle edgeStyle) { |
| this->addDrawCommand(new SkClipRRectCommand(rrect, op, kSoft_ClipEdgeStyle == edgeStyle)); |
| } |
| |
| void SkDebugCanvas::onClipRegion(const SkRegion& region, SkRegion::Op op) { |
| this->addDrawCommand(new SkClipRegionCommand(region, op)); |
| } |
| |
| void SkDebugCanvas::didConcat(const SkMatrix& matrix) { |
| switch (matrix.getType()) { |
| case SkMatrix::kTranslate_Mask: |
| this->addDrawCommand(new SkTranslateCommand(matrix.getTranslateX(), |
| matrix.getTranslateY())); |
| break; |
| case SkMatrix::kScale_Mask: |
| this->addDrawCommand(new SkScaleCommand(matrix.getScaleX(), |
| matrix.getScaleY())); |
| break; |
| default: |
| this->addDrawCommand(new SkConcatCommand(matrix)); |
| break; |
| } |
| |
| this->INHERITED::didConcat(matrix); |
| } |
| |
| void SkDebugCanvas::drawBitmap(const SkBitmap& bitmap, SkScalar left, |
| SkScalar top, const SkPaint* paint = NULL) { |
| this->addDrawCommand(new SkDrawBitmapCommand(bitmap, left, top, paint)); |
| } |
| |
| void SkDebugCanvas::drawBitmapRectToRect(const SkBitmap& bitmap, |
| const SkRect* src, const SkRect& dst, |
| const SkPaint* paint, |
| SkCanvas::DrawBitmapRectFlags flags) { |
| this->addDrawCommand(new SkDrawBitmapRectCommand(bitmap, src, dst, paint, flags)); |
| } |
| |
| void SkDebugCanvas::drawBitmapMatrix(const SkBitmap& bitmap, |
| const SkMatrix& matrix, const SkPaint* paint) { |
| this->addDrawCommand(new SkDrawBitmapMatrixCommand(bitmap, matrix, paint)); |
| } |
| |
| void SkDebugCanvas::drawBitmapNine(const SkBitmap& bitmap, |
| const SkIRect& center, const SkRect& dst, const SkPaint* paint) { |
| this->addDrawCommand(new SkDrawBitmapNineCommand(bitmap, center, dst, paint)); |
| } |
| |
| void SkDebugCanvas::drawData(const void* data, size_t length) { |
| this->addDrawCommand(new SkDrawDataCommand(data, length)); |
| } |
| |
| void SkDebugCanvas::beginCommentGroup(const char* description) { |
| this->addDrawCommand(new SkBeginCommentGroupCommand(description)); |
| } |
| |
| void SkDebugCanvas::addComment(const char* kywd, const char* value) { |
| this->addDrawCommand(new SkCommentCommand(kywd, value)); |
| } |
| |
| void SkDebugCanvas::endCommentGroup() { |
| this->addDrawCommand(new SkEndCommentGroupCommand()); |
| } |
| |
| void SkDebugCanvas::drawOval(const SkRect& oval, const SkPaint& paint) { |
| this->addDrawCommand(new SkDrawOvalCommand(oval, paint)); |
| } |
| |
| void SkDebugCanvas::drawPaint(const SkPaint& paint) { |
| this->addDrawCommand(new SkDrawPaintCommand(paint)); |
| } |
| |
| void SkDebugCanvas::drawPath(const SkPath& path, const SkPaint& paint) { |
| this->addDrawCommand(new SkDrawPathCommand(path, paint)); |
| } |
| |
| void SkDebugCanvas::drawPicture(SkPicture& picture) { |
| this->addDrawCommand(new SkDrawPictureCommand(picture)); |
| } |
| |
| void SkDebugCanvas::drawPoints(PointMode mode, size_t count, |
| const SkPoint pts[], const SkPaint& paint) { |
| this->addDrawCommand(new SkDrawPointsCommand(mode, count, pts, paint)); |
| } |
| |
| void SkDebugCanvas::drawPosText(const void* text, size_t byteLength, |
| const SkPoint pos[], const SkPaint& paint) { |
| this->addDrawCommand(new SkDrawPosTextCommand(text, byteLength, pos, paint)); |
| } |
| |
| void SkDebugCanvas::drawPosTextH(const void* text, size_t byteLength, |
| const SkScalar xpos[], SkScalar constY, const SkPaint& paint) { |
| this->addDrawCommand( |
| new SkDrawPosTextHCommand(text, byteLength, xpos, constY, paint)); |
| } |
| |
| void SkDebugCanvas::drawRect(const SkRect& rect, const SkPaint& paint) { |
| // NOTE(chudy): Messing up when renamed to DrawRect... Why? |
| addDrawCommand(new SkDrawRectCommand(rect, paint)); |
| } |
| |
| void SkDebugCanvas::drawRRect(const SkRRect& rrect, const SkPaint& paint) { |
| this->addDrawCommand(new SkDrawRRectCommand(rrect, paint)); |
| } |
| |
| void SkDebugCanvas::onDrawDRRect(const SkRRect& outer, const SkRRect& inner, |
| const SkPaint& paint) { |
| this->addDrawCommand(new SkDrawDRRectCommand(outer, inner, paint)); |
| } |
| |
| void SkDebugCanvas::drawSprite(const SkBitmap& bitmap, int left, int top, |
| const SkPaint* paint = NULL) { |
| this->addDrawCommand(new SkDrawSpriteCommand(bitmap, left, top, paint)); |
| } |
| |
| void SkDebugCanvas::drawText(const void* text, size_t byteLength, SkScalar x, |
| SkScalar y, const SkPaint& paint) { |
| this->addDrawCommand(new SkDrawTextCommand(text, byteLength, x, y, paint)); |
| } |
| |
| void SkDebugCanvas::drawTextOnPath(const void* text, size_t byteLength, |
| const SkPath& path, const SkMatrix* matrix, const SkPaint& paint) { |
| this->addDrawCommand( |
| new SkDrawTextOnPathCommand(text, byteLength, path, matrix, paint)); |
| } |
| |
| void SkDebugCanvas::drawVertices(VertexMode vmode, int vertexCount, |
| const SkPoint vertices[], const SkPoint texs[], const SkColor colors[], |
| SkXfermode*, const uint16_t indices[], int indexCount, |
| const SkPaint& paint) { |
| this->addDrawCommand(new SkDrawVerticesCommand(vmode, vertexCount, vertices, |
| texs, colors, NULL, indices, indexCount, paint)); |
| } |
| |
| void SkDebugCanvas::onPushCull(const SkRect& cullRect) { |
| this->addDrawCommand(new SkPushCullCommand(cullRect)); |
| } |
| |
| void SkDebugCanvas::onPopCull() { |
| this->addDrawCommand(new SkPopCullCommand()); |
| } |
| |
| void SkDebugCanvas::willRestore() { |
| this->addDrawCommand(new SkRestoreCommand()); |
| this->INHERITED::willRestore(); |
| } |
| |
| void SkDebugCanvas::willSave(SaveFlags flags) { |
| this->addDrawCommand(new SkSaveCommand(flags)); |
| this->INHERITED::willSave(flags); |
| } |
| |
| SkCanvas::SaveLayerStrategy SkDebugCanvas::willSaveLayer(const SkRect* bounds, const SkPaint* paint, |
| SaveFlags flags) { |
| this->addDrawCommand(new SkSaveLayerCommand(bounds, paint, flags)); |
| this->INHERITED::willSaveLayer(bounds, paint, flags); |
| // No need for a full layer. |
| return kNoLayer_SaveLayerStrategy; |
| } |
| |
| void SkDebugCanvas::didSetMatrix(const SkMatrix& matrix) { |
| this->addDrawCommand(new SkSetMatrixCommand(matrix)); |
| this->INHERITED::didSetMatrix(matrix); |
| } |
| |
| void SkDebugCanvas::toggleCommand(int index, bool toggle) { |
| SkASSERT(index < fCommandVector.count()); |
| fCommandVector[index]->setVisible(toggle); |
| } |