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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SKDEBUGCANVAS_H_
#define SKDEBUGCANVAS_H_
#include "include/core/SkCanvas.h"
#include "include/core/SkCanvasVirtualEnforcer.h"
#include "include/core/SkPath.h"
#include "include/core/SkString.h"
#include "include/core/SkVertices.h"
#include "include/pathops/SkPathOps.h"
#include "include/private/SkTArray.h"
#include "tools/UrlDataManager.h"
#include "tools/debugger/DebugLayerManager.h"
#include "tools/debugger/DrawCommand.h"
#include <map>
#include <vector>
class GrAuditTrail;
class SkNWayCanvas;
class SkPicture;
class DebugLayerManager;
class DebugCanvas : public SkCanvasVirtualEnforcer<SkCanvas> {
public:
DebugCanvas(int width, int height);
DebugCanvas(SkIRect bounds);
~DebugCanvas() override;
/**
* Provide a DebugLayerManager for mskp files containing layer information
* when set this DebugCanvas will attempt to parse layer info from annotations.
* it will store layer pictures to the layer manager, and interpret some drawImageRects
* as layer draws, deferring to the layer manager for images.
* Provide a frame number that will be passed to all layer manager functions to identify this
* DebugCanvas.
*
* Used only in wasm debugger animations.
*/
void setLayerManagerAndFrame(DebugLayerManager* lm, int frame) {
fLayerManager = lm;
fFrame = frame;
}
/**
* Enable or disable overdraw visualization
*/
void setOverdrawViz(bool overdrawViz);
bool getOverdrawViz() const { return fOverdrawViz; }
/**
* Set the color of the clip visualization. An alpha of zero renders the clip invisible.
*/
void setClipVizColor(SkColor clipVizColor) { this->fClipVizColor = clipVizColor; }
void setAndroidClipViz(bool enable) { this->fShowAndroidClip = enable; }
void setOriginVisible(bool enable) { this->fShowOrigin = enable; }
void setDrawGpuOpBounds(bool drawGpuOpBounds) { fDrawGpuOpBounds = drawGpuOpBounds; }
bool getDrawGpuOpBounds() const { return fDrawGpuOpBounds; }
/**
Executes all draw calls to the canvas.
@param canvas The canvas being drawn to
*/
void draw(SkCanvas* canvas);
/**
Executes the draw calls up to the specified index.
Does not clear the canvas to transparent black first,
if needed, caller should do that first.
@param canvas The canvas being drawn to
@param index The index of the final command being executed
@param m an optional Mth gpu op to highlight, or -1
*/
void drawTo(SkCanvas* canvas, int index, int m = -1);
/**
Returns the most recently calculated transformation matrix
*/
const SkM44& getCurrentMatrix() { return fMatrix; }
/**
Returns the most recently calculated clip
*/
const SkIRect& getCurrentClip() { return fClip; }
/**
Removes the command at the specified index
@param index The index of the command to delete
*/
void deleteDrawCommandAt(int index);
/**
Returns the draw command at the given index.
@param index The index of the command
*/
DrawCommand* getDrawCommandAt(int index) const;
/**
Returns length of draw command vector.
*/
int getSize() const { return fCommandVector.count(); }
/**
Toggles the visibility / execution of the draw command at index i with
the value of toggle.
*/
void toggleCommand(int index, bool toggle);
/**
Returns a JSON object representing all commands in the picture.
The encoder may use the UrlDataManager to store binary data such
as images, referring to them via URLs embedded in the JSON.
*/
void toJSON(SkJSONWriter& writer, UrlDataManager& urlDataManager, SkCanvas*);
void toJSONOpsTask(SkJSONWriter& writer, SkCanvas*);
void detachCommands(SkTDArray<DrawCommand*>* dst) { fCommandVector.swap(*dst); }
/**
Returns a map from image IDs to command indices where they are used.
*/
std::map<int, std::vector<int>> getImageIdToCommandMap(UrlDataManager& udm) const;
protected:
void willSave() override;
SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
bool onDoSaveBehind(const SkRect*) override;
void willRestore() override;
void didConcat44(const SkM44&) override;
void didSetM44(const SkM44&) override;
void didScale(SkScalar, SkScalar) override;
void didTranslate(SkScalar, SkScalar) override;
void onDrawAnnotation(const SkRect&, const char[], SkData*) override;
void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
void onDrawTextBlob(const SkTextBlob* blob,
SkScalar x,
SkScalar y,
const SkPaint& paint) override;
void onDrawPatch(const SkPoint cubics[12],
const SkColor colors[4],
const SkPoint texCoords[4],
SkBlendMode,
const SkPaint& paint) override;
void onDrawPaint(const SkPaint&) override;
void onDrawBehind(const SkPaint&) override;
void onDrawRect(const SkRect&, const SkPaint&) override;
void onDrawOval(const SkRect&, const SkPaint&) override;
void onDrawArc(const SkRect&, SkScalar, SkScalar, bool, const SkPaint&) override;
void onDrawRRect(const SkRRect&, const SkPaint&) override;
void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
void onDrawVerticesObject(const SkVertices*, SkBlendMode, const SkPaint&) override;
void onDrawPath(const SkPath&, const SkPaint&) override;
void onDrawRegion(const SkRegion&, const SkPaint&) override;
void onDrawImage2(const SkImage*, SkScalar, SkScalar, const SkSamplingOptions&,
const SkPaint*) override;
void onDrawImageRect2(const SkImage*, const SkRect&, const SkRect&, const SkSamplingOptions&,
const SkPaint*, SrcRectConstraint) override;
void onDrawImageLattice2(const SkImage*, const Lattice&, const SkRect&, SkFilterMode,
const SkPaint*) override;
void onDrawAtlas2(const SkImage*, const SkRSXform[], const SkRect[], const SkColor[], int,
SkBlendMode, const SkSamplingOptions&, const SkRect*, const SkPaint*) override;
void onClipRect(const SkRect&, SkClipOp, ClipEdgeStyle) override;
void onClipRRect(const SkRRect&, SkClipOp, ClipEdgeStyle) override;
void onClipPath(const SkPath&, SkClipOp, ClipEdgeStyle) override;
void onClipShader(sk_sp<SkShader>, SkClipOp) override;
void onClipRegion(const SkRegion& region, SkClipOp) override;
void onDrawShadowRec(const SkPath&, const SkDrawShadowRec&) override;
void onDrawDrawable(SkDrawable*, const SkMatrix*) override;
void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
void onDrawEdgeAAQuad(const SkRect&,
const SkPoint[4],
QuadAAFlags,
const SkColor4f&,
SkBlendMode) override;
void onDrawEdgeAAImageSet2(const ImageSetEntry[],
int count,
const SkPoint[],
const SkMatrix[],
const SkSamplingOptions&,
const SkPaint*,
SrcRectConstraint) override;
private:
SkTDArray<DrawCommand*> fCommandVector;
SkM44 fMatrix;
SkIRect fClip;
bool fOverdrawViz = false;
SkColor fClipVizColor;
bool fDrawGpuOpBounds = false;
bool fShowAndroidClip = false;
bool fShowOrigin = false;
// When not negative, indicates the render node id of the layer represented by the next
// drawPicture call.
int fnextDrawPictureLayerId = -1;
int fnextDrawImageRectLayerId = -1;
SkIRect fnextDrawPictureDirtyRect;
// may be null, in which case layer annotations are ignored.
DebugLayerManager* fLayerManager = nullptr;
// May be set when DebugCanvas is used in playing back an animation.
// Only used for passing to fLayerManager to identify itself.
int fFrame = -1;
SkRect fAndroidClip = SkRect::MakeEmpty();
/**
Adds the command to the class' vector of commands.
@param command The draw command for execution
*/
void addDrawCommand(DrawCommand* command);
GrAuditTrail* getAuditTrail(SkCanvas*);
void drawAndCollectOps(SkCanvas*);
void cleanupAuditTrail(SkCanvas*);
using INHERITED = SkCanvasVirtualEnforcer<SkCanvas>;
};
#endif