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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #pragma once
     18 
     19 #include "SkiaDisplayList.h"
     20 
     21 namespace android {
     22 namespace uirenderer {
     23 namespace skiapipeline {
     24 
     25 /**
     26  * DumpOpsCanvas prints drawing ops from a SkiaDisplayList into a std::ostream. Children render
     27  * nodes are walked recursively and their drawing ops are printed as well.
     28  */
     29 class DumpOpsCanvas : public SkCanvas {
     30 public:
     31     DumpOpsCanvas(std::ostream& output, int level, SkiaDisplayList& displayList)
     32             : mOutput(output)
     33             , mLevel(level)
     34             , mDisplayList(displayList)
     35             , mIdent((level + 1) * 2, ' ') {
     36     }
     37 
     38 protected:
     39     void onClipRect(const SkRect& rect, SkClipOp, ClipEdgeStyle) override {
     40         mOutput << mIdent << "clipRect" << std::endl;
     41     }
     42 
     43     void onClipRRect(const SkRRect& rrect, SkClipOp, ClipEdgeStyle) override {
     44         mOutput << mIdent << "clipRRect" << std::endl;
     45     }
     46 
     47     void onClipPath(const SkPath& path, SkClipOp, ClipEdgeStyle) override {
     48         mOutput << mIdent << "clipPath" << std::endl;
     49     }
     50 
     51     void onClipRegion(const SkRegion& deviceRgn, SkClipOp) override {
     52         mOutput << mIdent << "clipRegion" << std::endl;
     53     }
     54 
     55     void onDrawPaint(const SkPaint&) override {
     56         mOutput << mIdent << "drawPaint" << std::endl;
     57     }
     58 
     59     void onDrawPath(const SkPath&, const SkPaint&) override {
     60         mOutput << mIdent << "drawPath" << std::endl;
     61     }
     62 
     63     void onDrawRect(const SkRect&, const SkPaint&) override {
     64         mOutput << mIdent << "drawRect" << std::endl;
     65     }
     66 
     67     void onDrawRegion(const SkRegion&, const SkPaint&) override {
     68         mOutput << mIdent << "drawRegion" << std::endl;
     69     }
     70 
     71     void onDrawOval(const SkRect&, const SkPaint&) override {
     72         mOutput << mIdent << "drawOval" << std::endl;
     73     }
     74 
     75     void onDrawArc(const SkRect&, SkScalar, SkScalar, bool, const SkPaint&) override {
     76         mOutput << mIdent << "drawArc" << std::endl;
     77     }
     78 
     79     void onDrawRRect(const SkRRect&, const SkPaint&) override {
     80         mOutput << mIdent << "drawRRect" << std::endl;
     81     }
     82 
     83     void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override {
     84         mOutput << mIdent << "drawDRRect" << std::endl;
     85     }
     86 
     87     void onDrawText(const void*, size_t, SkScalar, SkScalar, const SkPaint&) override {
     88         mOutput << mIdent << "drawText" << std::endl;
     89     }
     90 
     91     void onDrawPosText(const void*, size_t, const SkPoint[], const SkPaint&) override {
     92         mOutput << mIdent << "drawPosText" << std::endl;
     93     }
     94 
     95     void onDrawPosTextH(const void*, size_t, const SkScalar[], SkScalar,
     96             const SkPaint&) override {
     97         mOutput << mIdent << "drawPosTextH" << std::endl;
     98     }
     99 
    100     void onDrawTextOnPath(const void*, size_t, const SkPath&, const SkMatrix*,
    101             const SkPaint&) override {
    102         mOutput << mIdent << "drawTextOnPath" << std::endl;
    103     }
    104 
    105     void onDrawTextRSXform(const void*, size_t, const SkRSXform[], const SkRect*,
    106             const SkPaint&) override {
    107         mOutput << mIdent << "drawTextRSXform" << std::endl;
    108     }
    109 
    110     void onDrawTextBlob(const SkTextBlob*, SkScalar,SkScalar, const SkPaint&) override {
    111         mOutput << mIdent << "drawTextBlob" << std::endl;
    112     }
    113 
    114     void onDrawImage(const SkImage*, SkScalar dx, SkScalar dy, const SkPaint*) override {
    115         mOutput << mIdent << "drawImage" << std::endl;
    116     }
    117 
    118     void onDrawImageNine(const SkImage*, const SkIRect& center, const SkRect& dst,
    119             const SkPaint*) override {
    120         mOutput << mIdent << "drawImageNine" << std::endl;
    121     }
    122 
    123     void onDrawImageRect(const SkImage*, const SkRect*, const SkRect&, const SkPaint*,
    124             SrcRectConstraint) override {
    125         mOutput << mIdent << "drawImageRect" << std::endl;
    126     }
    127 
    128     void onDrawImageLattice(const SkImage*, const Lattice& lattice, const SkRect& dst,
    129             const SkPaint*) override {
    130         mOutput << mIdent << "drawImageLattice" << std::endl;
    131     }
    132 
    133     void onDrawPoints(SkCanvas::PointMode, size_t, const SkPoint[], const SkPaint&) override {
    134         mOutput << mIdent << "drawPoints" << std::endl;
    135     }
    136 
    137     void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override {
    138         mOutput << mIdent << "drawPicture" << std::endl;
    139     }
    140 
    141     void onDrawDrawable(SkDrawable* drawable, const SkMatrix*) override {
    142         mOutput << mIdent;
    143         auto renderNodeDrawable = getRenderNodeDrawable(drawable);
    144         if (nullptr != renderNodeDrawable) {
    145             mOutput << std::string(mLevel * 2, ' ') << "drawRenderNode";
    146             renderNodeDrawable->getRenderNode()->output(mOutput, mLevel + 1);
    147             return;
    148         }
    149         auto glFunctorDrawable = getGLFunctorDrawable(drawable);
    150         if (nullptr != glFunctorDrawable) {
    151             mOutput << std::string(mLevel * 2, ' ') << "drawGLFunctorDrawable" << std::endl;
    152             return;
    153         }
    154 
    155         mOutput << std::string(mLevel * 2, ' ') << "drawDrawable" << std::endl;
    156     }
    157 
    158 private:
    159     RenderNodeDrawable* getRenderNodeDrawable(SkDrawable* drawable) {
    160          for (auto& child : mDisplayList.mChildNodes) {
    161             if (drawable == &child) {
    162                 return &child;
    163             }
    164          }
    165          return nullptr;
    166     }
    167 
    168     GLFunctorDrawable* getGLFunctorDrawable(SkDrawable* drawable) {
    169          for (auto& child : mDisplayList.mChildFunctors) {
    170             if (drawable == &child) {
    171                 return &child;
    172             }
    173          }
    174          return nullptr;
    175     }
    176 
    177     std::ostream& mOutput;
    178     int mLevel;
    179     SkiaDisplayList& mDisplayList;
    180     std::string mIdent;
    181 };
    182 
    183 }; // namespace skiapipeline
    184 }; // namespace uirenderer
    185 }; // namespace android
    186