SkDebugger.cpp revision fe17456d5e528078ce69b5f15cf7adf1fab963f9 
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
15SkDebugger::SkDebugger()
16    : fDebugCanvas(skstd::make_unique<SkDebugCanvas>(0, 0))
17    , fIndex(-1) { }
18
19SkDebugger::~SkDebugger() {}
20
21void 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
32sk_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
55void 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
140void SkDebugger::getClipStackText(SkString* clipStack) {
141    clipStack->set(fDebugCanvas->clipStackData());
142}
143