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      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 "SkPictureRecorder.h"
     11 #include "SkString.h"
     12 
     13 
     14 SkDebugger::SkDebugger()
     15     : fPicture(NULL)
     16     , fIndex(-1) {
     17     // Create this some other dynamic way?
     18     fDebugCanvas = new SkDebugCanvas(0, 0);
     19 }
     20 
     21 SkDebugger::~SkDebugger() {
     22     // Need to inherit from SkRef object in order for following to work
     23     SkSafeUnref(fDebugCanvas);
     24     SkSafeUnref(fPicture);
     25 }
     26 
     27 void SkDebugger::loadPicture(SkPicture* picture) {
     28     SkRefCnt_SafeAssign(fPicture, picture);
     29 
     30     delete fDebugCanvas;
     31     fDebugCanvas = new SkDebugCanvas(SkScalarCeilToInt(this->pictureCull().width()),
     32                                      SkScalarCeilToInt(this->pictureCull().height()));
     33     fDebugCanvas->setPicture(picture);
     34     picture->playback(fDebugCanvas);
     35     fDebugCanvas->setPicture(NULL);
     36     fIndex = fDebugCanvas->getSize() - 1;
     37 }
     38 
     39 SkPicture* SkDebugger::copyPicture() {
     40     // We can't just call clone here since we want to removed the "deleted"
     41     // commands. Playing back will strip those out.
     42     SkPictureRecorder recorder;
     43     SkCanvas* canvas = recorder.beginRecording(this->pictureCull().width(),
     44                                                this->pictureCull().height());
     45 
     46     bool vizMode = fDebugCanvas->getMegaVizMode();
     47     fDebugCanvas->setMegaVizMode(false);
     48     bool overDraw = fDebugCanvas->getOverdrawViz();
     49     fDebugCanvas->setOverdrawViz(false);
     50     bool pathOps = fDebugCanvas->getAllowSimplifyClip();
     51     fDebugCanvas->setAllowSimplifyClip(false);
     52 
     53     fDebugCanvas->draw(canvas);
     54 
     55     fDebugCanvas->setMegaVizMode(vizMode);
     56     fDebugCanvas->setOverdrawViz(overDraw);
     57     fDebugCanvas->setAllowSimplifyClip(pathOps);
     58 
     59     return recorder.endRecording();
     60 }
     61 
     62 void SkDebugger::getOverviewText(const SkTDArray<double>* typeTimes,
     63                                  double totTime,
     64                                  SkString* overview,
     65                                  int numRuns) {
     66     const SkTDArray<SkDrawCommand*>& commands = this->getDrawCommands();
     67 
     68     SkTDArray<int> counts;
     69     counts.setCount(SkDrawCommand::kOpTypeCount);
     70     for (int i = 0; i < SkDrawCommand::kOpTypeCount; ++i) {
     71         counts[i] = 0;
     72     }
     73 
     74     for (int i = 0; i < commands.count(); i++) {
     75         counts[commands[i]->getType()]++;
     76     }
     77 
     78     overview->reset();
     79     int total = 0;
     80 #ifdef SK_DEBUG
     81     double totPercent = 0, tempSum = 0;
     82 #endif
     83     for (int i = 0; i < SkDrawCommand::kOpTypeCount; ++i) {
     84         if (0 == counts[i]) {
     85             // if there were no commands of this type then they should've consumed no time
     86             SkASSERT(NULL == typeTimes || 0.0 == (*typeTimes)[i]);
     87             continue;
     88         }
     89 
     90         overview->append(SkDrawCommand::GetCommandString((SkDrawCommand::OpType) i));
     91         overview->append(": ");
     92         overview->appendS32(counts[i]);
     93         if (typeTimes && totTime >= 0.0) {
     94             overview->append(" - ");
     95             overview->appendf("%.2f", (*typeTimes)[i]/(float)numRuns);
     96             overview->append("ms");
     97             overview->append(" - ");
     98             double percent = 100.0*(*typeTimes)[i]/totTime;
     99             overview->appendf("%.2f", percent);
    100             overview->append("%");
    101 #ifdef SK_DEBUG
    102             totPercent += percent;
    103             tempSum += (*typeTimes)[i];
    104 #endif
    105         }
    106         overview->append("<br/>");
    107         total += counts[i];
    108     }
    109 #ifdef SK_DEBUG
    110     if (typeTimes) {
    111         SkASSERT(SkScalarNearlyEqual(SkDoubleToScalar(totPercent),
    112                                      SkDoubleToScalar(100.0)));
    113         SkASSERT(SkScalarNearlyEqual(SkDoubleToScalar(tempSum),
    114                                      SkDoubleToScalar(totTime)));
    115     }
    116 #endif
    117 
    118     if (totTime > 0.0) {
    119         overview->append("Total Time: ");
    120         overview->appendf("%.2f", totTime/(float)numRuns);
    121         overview->append("ms");
    122 #ifdef SK_DEBUG
    123         overview->append(" ");
    124         overview->appendScalar(SkDoubleToScalar(totPercent));
    125         overview->append("% ");
    126 #endif
    127         overview->append("<br/>");
    128     }
    129 
    130     SkString totalStr;
    131     totalStr.append("Total Draw Commands: ");
    132     totalStr.appendScalar(SkDoubleToScalar(total));
    133     totalStr.append("<br/>");
    134     overview->insert(0, totalStr);
    135 
    136     overview->append("<br/>SkPicture L: ");
    137     overview->appendScalar(this->pictureCull().fLeft);
    138     overview->append(" T: ");
    139     overview->appendScalar(this->pictureCull().fTop);
    140     overview->append(" R: ");
    141     overview->appendScalar(this->pictureCull().fRight);
    142     overview->append(" B: ");
    143     overview->appendScalar(this->pictureCull().fBottom);
    144     overview->append("<br/>");
    145 }
    146 
    147 void SkDebugger::getClipStackText(SkString* clipStack) {
    148     clipStack->set(fDebugCanvas->clipStackData());
    149 }
    150