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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     // Create this some other dynamic way?
     16     fDebugCanvas = new SkDebugCanvas(100, 100);
     17     fPicture = NULL;
     18     fPictureWidth = 0;
     19     fPictureHeight = 0;
     20     fIndex = 0;
     21 }
     22 
     23 SkDebugger::~SkDebugger() {
     24     // Need to inherit from SkRef object in order for following to work
     25     SkSafeUnref(fDebugCanvas);
     26     SkSafeUnref(fPicture);
     27 }
     28 
     29 void SkDebugger::loadPicture(SkPicture* picture) {
     30     fPictureWidth = picture->width();
     31     fPictureHeight = picture->height();
     32     delete fDebugCanvas;
     33     fDebugCanvas = new SkDebugCanvas(fPictureWidth, fPictureHeight);
     34     fDebugCanvas->setBounds(fPictureWidth, fPictureHeight);
     35     fDebugCanvas->setPicture(picture);
     36     picture->draw(fDebugCanvas);
     37     fDebugCanvas->setPicture(NULL);
     38     fIndex = fDebugCanvas->getSize() - 1;
     39     SkRefCnt_SafeAssign(fPicture, picture);
     40 }
     41 
     42 SkPicture* SkDebugger::copyPicture() {
     43     // We can't just call clone here since we want to removed the "deleted"
     44     // commands. Playing back will strip those out.
     45     SkPictureRecorder recorder;
     46     SkCanvas* canvas = recorder.beginRecording(fPictureWidth, fPictureHeight, NULL, 0);
     47 
     48     bool vizMode = fDebugCanvas->getMegaVizMode();
     49     fDebugCanvas->setMegaVizMode(false);
     50     bool overDraw = fDebugCanvas->getOverdrawViz();
     51     fDebugCanvas->setOverdrawViz(false);
     52     bool pathOps = fDebugCanvas->getAllowSimplifyClip();
     53     fDebugCanvas->setAllowSimplifyClip(false);
     54     int saveCount = fDebugCanvas->getOutstandingSaveCount();
     55     fDebugCanvas->setOutstandingSaveCount(0);
     56 
     57     fDebugCanvas->draw(canvas);
     58 
     59     int temp = fDebugCanvas->getOutstandingSaveCount();
     60     for (int i = 0; i < temp; ++i) {
     61         canvas->restore();
     62     }
     63 
     64     fDebugCanvas->setMegaVizMode(vizMode);
     65     fDebugCanvas->setOverdrawViz(overDraw);
     66     fDebugCanvas->setOutstandingSaveCount(saveCount);
     67     fDebugCanvas->setAllowSimplifyClip(pathOps);
     68 
     69     return recorder.endRecording();
     70 }
     71 
     72 void SkDebugger::getOverviewText(const SkTDArray<double>* typeTimes,
     73                                  double totTime,
     74                                  SkString* overview,
     75                                  int numRuns) {
     76     const SkTDArray<SkDrawCommand*>& commands = this->getDrawCommands();
     77 
     78     SkTDArray<int> counts;
     79     counts.setCount(LAST_DRAWTYPE_ENUM+1);
     80     for (int i = 0; i < LAST_DRAWTYPE_ENUM+1; ++i) {
     81         counts[i] = 0;
     82     }
     83 
     84     for (int i = 0; i < commands.count(); i++) {
     85         counts[commands[i]->getType()]++;
     86     }
     87 
     88     overview->reset();
     89     int total = 0;
     90 #ifdef SK_DEBUG
     91     double totPercent = 0, tempSum = 0;
     92 #endif
     93     for (int i = 0; i < LAST_DRAWTYPE_ENUM+1; ++i) {
     94         if (0 == counts[i]) {
     95             // if there were no commands of this type then they should've consumed no time
     96             SkASSERT(NULL == typeTimes || 0.0 == (*typeTimes)[i]);
     97             continue;
     98         }
     99 
    100         overview->append(SkDrawCommand::GetCommandString((DrawType) i));
    101         overview->append(": ");
    102         overview->appendS32(counts[i]);
    103         if (NULL != typeTimes && totTime >= 0.0) {
    104             overview->append(" - ");
    105             overview->appendf("%.2f", (*typeTimes)[i]/(float)numRuns);
    106             overview->append("ms");
    107             overview->append(" - ");
    108             double percent = 100.0*(*typeTimes)[i]/totTime;
    109             overview->appendf("%.2f", percent);
    110             overview->append("%");
    111 #ifdef SK_DEBUG
    112             totPercent += percent;
    113             tempSum += (*typeTimes)[i];
    114 #endif
    115         }
    116         overview->append("<br/>");
    117         total += counts[i];
    118     }
    119 #ifdef SK_DEBUG
    120     if (NULL != typeTimes) {
    121         SkASSERT(SkScalarNearlyEqual(SkDoubleToScalar(totPercent),
    122                                      SkDoubleToScalar(100.0)));
    123         SkASSERT(SkScalarNearlyEqual(SkDoubleToScalar(tempSum),
    124                                      SkDoubleToScalar(totTime)));
    125     }
    126 #endif
    127 
    128     if (totTime > 0.0) {
    129         overview->append("Total Time: ");
    130         overview->appendf("%.2f", totTime/(float)numRuns);
    131         overview->append("ms");
    132 #ifdef SK_DEBUG
    133         overview->append(" ");
    134         overview->appendScalar(SkDoubleToScalar(totPercent));
    135         overview->append("% ");
    136 #endif
    137         overview->append("<br/>");
    138     }
    139 
    140     SkString totalStr;
    141     totalStr.append("Total Draw Commands: ");
    142     totalStr.appendScalar(SkDoubleToScalar(total));
    143     totalStr.append("<br/>");
    144     overview->insert(0, totalStr);
    145 
    146     overview->append("<br/>");
    147     overview->append("SkPicture Width: ");
    148     overview->appendS32(pictureWidth());
    149     overview->append("px<br/>");
    150     overview->append("SkPicture Height: ");
    151     overview->appendS32(pictureHeight());
    152     overview->append("px");
    153 }
    154 
    155 void SkDebugger::getClipStackText(SkString* clipStack) {
    156     clipStack->set(fDebugCanvas->clipStackData());
    157 }
    158