1 /*
2 * Copyright 2014 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "bench/SKPBench.h"
9 #include "include/core/SkMultiPictureDraw.h"
10 #include "include/core/SkSurface.h"
11 #include "tools/flags/CommandLineFlags.h"
12
13 #include "include/gpu/GrContext.h"
14 #include "src/gpu/GrContextPriv.h"
15
16 // These CPU tile sizes are not good per se, but they are similar to what Chrome uses.
17 static DEFINE_int(CPUbenchTileW, 256, "Tile width used for CPU SKP playback.");
18 static DEFINE_int(CPUbenchTileH, 256, "Tile height used for CPU SKP playback.");
19
20 static DEFINE_int(GPUbenchTileW, 1600, "Tile width used for GPU SKP playback.");
21 static DEFINE_int(GPUbenchTileH, 512, "Tile height used for GPU SKP playback.");
22
SKPBench(const char * name,const SkPicture * pic,const SkIRect & clip,SkScalar scale,bool useMultiPictureDraw,bool doLooping)23 SKPBench::SKPBench(const char* name, const SkPicture* pic, const SkIRect& clip, SkScalar scale,
24 bool useMultiPictureDraw, bool doLooping)
25 : fPic(SkRef(pic))
26 , fClip(clip)
27 , fScale(scale)
28 , fName(name)
29 , fUseMultiPictureDraw(useMultiPictureDraw)
30 , fDoLooping(doLooping) {
31 fUniqueName.printf("%s_%.2g", name, scale); // Scale makes this unqiue for perf.skia.org traces.
32 if (useMultiPictureDraw) {
33 fUniqueName.append("_mpd");
34 }
35 }
36
~SKPBench()37 SKPBench::~SKPBench() {
38 for (int i = 0; i < fSurfaces.count(); ++i) {
39 fSurfaces[i]->unref();
40 }
41 }
42
onGetName()43 const char* SKPBench::onGetName() {
44 return fName.c_str();
45 }
46
onGetUniqueName()47 const char* SKPBench::onGetUniqueName() {
48 return fUniqueName.c_str();
49 }
50
onPerCanvasPreDraw(SkCanvas * canvas)51 void SKPBench::onPerCanvasPreDraw(SkCanvas* canvas) {
52 SkIRect bounds = canvas->getDeviceClipBounds();
53 SkAssertResult(!bounds.isEmpty());
54
55 const bool gpu = canvas->getGrContext() != nullptr;
56 int tileW = gpu ? FLAGS_GPUbenchTileW : FLAGS_CPUbenchTileW,
57 tileH = gpu ? FLAGS_GPUbenchTileH : FLAGS_CPUbenchTileH;
58
59 tileW = SkTMin(tileW, bounds.width());
60 tileH = SkTMin(tileH, bounds.height());
61
62 int xTiles = SkScalarCeilToInt(bounds.width() / SkIntToScalar(tileW));
63 int yTiles = SkScalarCeilToInt(bounds.height() / SkIntToScalar(tileH));
64
65 fSurfaces.reserve(xTiles * yTiles);
66 fTileRects.setReserve(xTiles * yTiles);
67
68 SkImageInfo ii = canvas->imageInfo().makeWH(tileW, tileH);
69
70 for (int y = bounds.fTop; y < bounds.fBottom; y += tileH) {
71 for (int x = bounds.fLeft; x < bounds.fRight; x += tileW) {
72 const SkIRect tileRect = SkIRect::MakeXYWH(x, y, tileW, tileH);
73 *fTileRects.append() = tileRect;
74 fSurfaces.emplace_back(canvas->makeSurface(ii));
75
76 // Never want the contents of a tile to include stuff the parent
77 // canvas clips out
78 SkRect clip = SkRect::Make(bounds);
79 clip.offset(-SkIntToScalar(tileRect.fLeft), -SkIntToScalar(tileRect.fTop));
80 fSurfaces.back()->getCanvas()->clipRect(clip);
81
82 fSurfaces.back()->getCanvas()->setMatrix(canvas->getTotalMatrix());
83 fSurfaces.back()->getCanvas()->scale(fScale, fScale);
84 }
85 }
86 }
87
onPerCanvasPostDraw(SkCanvas * canvas)88 void SKPBench::onPerCanvasPostDraw(SkCanvas* canvas) {
89 // Draw the last set of tiles into the master canvas in case we're
90 // saving the images
91 for (int i = 0; i < fTileRects.count(); ++i) {
92 sk_sp<SkImage> image(fSurfaces[i]->makeImageSnapshot());
93 canvas->drawImage(image,
94 SkIntToScalar(fTileRects[i].fLeft), SkIntToScalar(fTileRects[i].fTop));
95 }
96
97 fSurfaces.reset();
98 fTileRects.rewind();
99 }
100
isSuitableFor(Backend backend)101 bool SKPBench::isSuitableFor(Backend backend) {
102 return backend != kNonRendering_Backend;
103 }
104
onGetSize()105 SkIPoint SKPBench::onGetSize() {
106 return SkIPoint::Make(fClip.width(), fClip.height());
107 }
108
onDraw(int loops,SkCanvas * canvas)109 void SKPBench::onDraw(int loops, SkCanvas* canvas) {
110 SkASSERT(fDoLooping || 1 == loops);
111 while (1) {
112 if (fUseMultiPictureDraw) {
113 this->drawMPDPicture();
114 } else {
115 this->drawPicture();
116 }
117 if (0 == --loops) {
118 break;
119 }
120 // Ensure the GrContext doesn't combine ops across draw loops.
121 if (GrContext* context = canvas->getGrContext()) {
122 context->flush();
123 }
124 }
125 }
126
drawMPDPicture()127 void SKPBench::drawMPDPicture() {
128 SkMultiPictureDraw mpd;
129
130 for (int j = 0; j < fTileRects.count(); ++j) {
131 SkMatrix trans;
132 trans.setTranslate(-fTileRects[j].fLeft/fScale,
133 -fTileRects[j].fTop/fScale);
134 mpd.add(fSurfaces[j]->getCanvas(), fPic.get(), &trans);
135 }
136
137 // We flush after each picture to more closely model how Chrome rasterizes tiles.
138 mpd.draw(/*flush = */ true);
139 }
140
drawPicture()141 void SKPBench::drawPicture() {
142 for (int j = 0; j < fTileRects.count(); ++j) {
143 const SkMatrix trans = SkMatrix::MakeTrans(-fTileRects[j].fLeft / fScale,
144 -fTileRects[j].fTop / fScale);
145 fSurfaces[j]->getCanvas()->drawPicture(fPic.get(), &trans, nullptr);
146 }
147
148 for (int j = 0; j < fTileRects.count(); ++j) {
149 fSurfaces[j]->getCanvas()->flush();
150 }
151 }
152
153 #include "src/gpu/GrGpu.h"
draw_pic_for_stats(SkCanvas * canvas,GrContext * context,const SkPicture * picture,SkTArray<SkString> * keys,SkTArray<double> * values)154 static void draw_pic_for_stats(SkCanvas* canvas, GrContext* context, const SkPicture* picture,
155 SkTArray<SkString>* keys, SkTArray<double>* values) {
156 context->priv().resetGpuStats();
157 canvas->drawPicture(picture);
158 canvas->flush();
159
160 context->priv().dumpGpuStatsKeyValuePairs(keys, values);
161 context->priv().dumpCacheStatsKeyValuePairs(keys, values);
162 }
163
getGpuStats(SkCanvas * canvas,SkTArray<SkString> * keys,SkTArray<double> * values)164 void SKPBench::getGpuStats(SkCanvas* canvas, SkTArray<SkString>* keys, SkTArray<double>* values) {
165 // we do a special single draw and then dump the key / value pairs
166 GrContext* context = canvas->getGrContext();
167 if (!context) {
168 return;
169 }
170
171 // TODO refactor this out if we want to test other subclasses of skpbench
172 context->flush();
173 context->freeGpuResources();
174 context->resetContext();
175 context->priv().getGpu()->resetShaderCacheForTesting();
176 draw_pic_for_stats(canvas, context, fPic.get(), keys, values);
177 }
178