debugger/SkDebugger.cpp

   1
   2 /*
   3  * Copyright 2012 Google Inc.
   4  *
   5  * Use of this source code is governed by a BSD-style license that can be
   6  * found in the LICENSE file.
   7  */
   8
   9 #include "SkDebugger.h"
  10 #include "SkMakeUnique.h"
  11 #include "SkPictureRecorder.h"
  12 #include "SkString.h"
  13
  14
  15 SkDebugger::SkDebugger()
  16     : fDebugCanvas(skstd::make_unique<SkDebugCanvas>(0, 0))
  17     , fIndex(-1) { }
  18
  19 SkDebugger::~SkDebugger() {}
  20
  21 void SkDebugger::loadPicture(SkPicture* picture) {
  22     fPicture = sk_ref_sp(picture);
  23     fDebugCanvas = skstd::make_unique<SkDebugCanvas>(
  24         SkScalarCeilToInt(this->pictureCull().width()),
  25         SkScalarCeilToInt(this->pictureCull().height()));
  26     fDebugCanvas->setPicture(picture);
  27     picture->playback(fDebugCanvas.get());
  28     fDebugCanvas->setPicture(nullptr);
  29     fIndex = fDebugCanvas->getSize() - 1;
  30 }
  31
  32 sk_sp<SkPicture> SkDebugger::copyPicture() {
  33     // We can't just call clone here since we want to removed the "deleted"
  34     // commands. Playing back will strip those out.
  35     SkPictureRecorder recorder;
  36     SkCanvas* canvas = recorder.beginRecording(this->pictureCull().width(),
  37                                                this->pictureCull().height());
  38
  39     bool vizMode = fDebugCanvas->getMegaVizMode();
  40     fDebugCanvas->setMegaVizMode(false);
  41     bool overDraw = fDebugCanvas->getOverdrawViz();
  42     fDebugCanvas->setOverdrawViz(false);
  43     bool pathOps = fDebugCanvas->getAllowSimplifyClip();
  44     fDebugCanvas->setAllowSimplifyClip(false);
  45
  46     fDebugCanvas->draw(canvas);
  47
  48     fDebugCanvas->setMegaVizMode(vizMode);
  49     fDebugCanvas->setOverdrawViz(overDraw);
  50     fDebugCanvas->setAllowSimplifyClip(pathOps);
  51
  52     return recorder.finishRecordingAsPicture();
  53 }
  54
  55 void SkDebugger::getOverviewText(const SkTDArray<double>* typeTimes,
  56                                  double totTime,
  57                                  SkString* overview,
  58                                  int numRuns) {
  59     const SkTDArray<SkDrawCommand*>& commands = this->getDrawCommands();
  60
  61     SkTDArray<int> counts;
  62     counts.setCount(SkDrawCommand::kOpTypeCount);
  63     for (int i = 0; i < SkDrawCommand::kOpTypeCount; ++i) {
  64         counts[i] = 0;
  65     }
  66
  67     for (int i = 0; i < commands.count(); i++) {
  68         counts[commands[i]->getType()]++;
  69     }
  70
  71     overview->reset();
  72     int total = 0;
  73 #ifdef SK_DEBUG
  74     double totPercent = 0, tempSum = 0;
  75 #endif
  76     for (int i = 0; i < SkDrawCommand::kOpTypeCount; ++i) {
  77         if (0 == counts[i]) {
  78             // if there were no commands of this type then they should've consumed no time
  79             SkASSERT(nullptr == typeTimes || 0.0 == (*typeTimes)[i]);
  80             continue;
  81         }
  82
  83         overview->append(SkDrawCommand::GetCommandString((SkDrawCommand::OpType) i));
  84         overview->append(": ");
  85         overview->appendS32(counts[i]);
  86         if (typeTimes && totTime >= 0.0) {
  87             overview->append(" - ");
  88             overview->appendf("%.2f", (*typeTimes)[i]/(float)numRuns);
  89             overview->append("ms");
  90             overview->append(" - ");
  91             double percent = 100.0*(*typeTimes)[i]/totTime;
  92             overview->appendf("%.2f", percent);
  93             overview->append("%");
  94 #ifdef SK_DEBUG
  95             totPercent += percent;
  96             tempSum += (*typeTimes)[i];
  97 #endif
  98         }
  99         overview->append("<br/>");
 100         total += counts[i];
 101     }
 102 #ifdef SK_DEBUG
 103     if (typeTimes) {
 104         SkASSERT(SkScalarNearlyEqual(SkDoubleToScalar(totPercent),
 105                                      SkDoubleToScalar(100.0)));
 106         SkASSERT(SkScalarNearlyEqual(SkDoubleToScalar(tempSum),
 107                                      SkDoubleToScalar(totTime)));
 108     }
 109 #endif
 110
 111     if (totTime > 0.0) {
 112         overview->append("Total Time: ");
 113         overview->appendf("%.2f", totTime/(float)numRuns);
 114         overview->append("ms");
 115 #ifdef SK_DEBUG
 116         overview->append(" ");
 117         overview->appendScalar(SkDoubleToScalar(totPercent));
 118         overview->append("% ");
 119 #endif
 120         overview->append("<br/>");
 121     }
 122
 123     SkString totalStr;
 124     totalStr.append("Total Draw Commands: ");
 125     totalStr.appendScalar(SkDoubleToScalar(total));
 126     totalStr.append("<br/>");
 127     overview->insert(0, totalStr);
 128
 129     overview->append("<br/>SkPicture L: ");
 130     overview->appendScalar(this->pictureCull().fLeft);
 131     overview->append(" T: ");
 132     overview->appendScalar(this->pictureCull().fTop);
 133     overview->append(" R: ");
 134     overview->appendScalar(this->pictureCull().fRight);
 135     overview->append(" B: ");
 136     overview->appendScalar(this->pictureCull().fBottom);
 137     overview->append("<br/>");
 138 }
 139
 140 void SkDebugger::getClipStackText(SkString* clipStack) {
 141     clipStack->set(fDebugCanvas->clipStackData());
 142 }