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 "SKPBench.h"
9 #include "SkCommandLineFlags.h"
10 #include "SkMultiPictureDraw.h"
11 #include "SkSurface.h"
12
13 #if SK_SUPPORT_GPU
14 #include "GrContext.h"
15 #include "GrContextPriv.h"
16 #endif
17
18 // These CPU tile sizes are not good per se, but they are similar to what Chrome uses.
19 DEFINE_int32(CPUbenchTileW, 256, "Tile width used for CPU SKP playback.");
20 DEFINE_int32(CPUbenchTileH, 256, "Tile height used for CPU SKP playback.");
21
22 DEFINE_int32(GPUbenchTileW, 1600, "Tile width used for GPU SKP playback.");
23 DEFINE_int32(GPUbenchTileH, 512, "Tile height used for GPU SKP playback.");
24
SKPBench(const char * name,const SkPicture * pic,const SkIRect & clip,SkScalar scale,bool useMultiPictureDraw,bool doLooping)25 SKPBench::SKPBench(const char* name, const SkPicture* pic, const SkIRect& clip, SkScalar scale,
26 bool useMultiPictureDraw, bool doLooping)
27 : fPic(SkRef(pic))
28 , fClip(clip)
29 , fScale(scale)
30 , fName(name)
31 , fUseMultiPictureDraw(useMultiPictureDraw)
32 , fDoLooping(doLooping) {
33 fUniqueName.printf("%s_%.2g", name, scale); // Scale makes this unqiue for perf.skia.org traces.
34 if (useMultiPictureDraw) {
35 fUniqueName.append("_mpd");
36 }
37 }
38
~SKPBench()39 SKPBench::~SKPBench() {
40 for (int i = 0; i < fSurfaces.count(); ++i) {
41 fSurfaces[i]->unref();
42 }
43 }
44
onGetName()45 const char* SKPBench::onGetName() {
46 return fName.c_str();
47 }
48
onGetUniqueName()49 const char* SKPBench::onGetUniqueName() {
50 return fUniqueName.c_str();
51 }
52
onPerCanvasPreDraw(SkCanvas * canvas)53 void SKPBench::onPerCanvasPreDraw(SkCanvas* canvas) {
54 SkIRect bounds = canvas->getDeviceClipBounds();
55 SkAssertResult(!bounds.isEmpty());
56
57 const bool gpu = canvas->getGrContext() != nullptr;
58 int tileW = gpu ? FLAGS_GPUbenchTileW : FLAGS_CPUbenchTileW,
59 tileH = gpu ? FLAGS_GPUbenchTileH : FLAGS_CPUbenchTileH;
60
61 tileW = SkTMin(tileW, bounds.width());
62 tileH = SkTMin(tileH, bounds.height());
63
64 int xTiles = SkScalarCeilToInt(bounds.width() / SkIntToScalar(tileW));
65 int yTiles = SkScalarCeilToInt(bounds.height() / SkIntToScalar(tileH));
66
67 fSurfaces.setReserve(xTiles * yTiles);
68 fTileRects.setReserve(xTiles * yTiles);
69
70 SkImageInfo ii = canvas->imageInfo().makeWH(tileW, tileH);
71
72 for (int y = bounds.fTop; y < bounds.fBottom; y += tileH) {
73 for (int x = bounds.fLeft; x < bounds.fRight; x += tileW) {
74 const SkIRect tileRect = SkIRect::MakeXYWH(x, y, tileW, tileH);
75 *fTileRects.append() = tileRect;
76 *fSurfaces.push() = canvas->makeSurface(ii).release();
77
78 // Never want the contents of a tile to include stuff the parent
79 // canvas clips out
80 SkRect clip = SkRect::Make(bounds);
81 clip.offset(-SkIntToScalar(tileRect.fLeft), -SkIntToScalar(tileRect.fTop));
82 fSurfaces.top()->getCanvas()->clipRect(clip);
83
84 fSurfaces.top()->getCanvas()->setMatrix(canvas->getTotalMatrix());
85 fSurfaces.top()->getCanvas()->scale(fScale, fScale);
86 }
87 }
88 }
89
onPerCanvasPostDraw(SkCanvas * canvas)90 void SKPBench::onPerCanvasPostDraw(SkCanvas* canvas) {
91 // Draw the last set of tiles into the master canvas in case we're
92 // saving the images
93 for (int i = 0; i < fTileRects.count(); ++i) {
94 sk_sp<SkImage> image(fSurfaces[i]->makeImageSnapshot());
95 canvas->drawImage(image,
96 SkIntToScalar(fTileRects[i].fLeft), SkIntToScalar(fTileRects[i].fTop));
97 SkSafeSetNull(fSurfaces[i]);
98 }
99
100 fSurfaces.rewind();
101 fTileRects.rewind();
102 }
103
isSuitableFor(Backend backend)104 bool SKPBench::isSuitableFor(Backend backend) {
105 return backend != kNonRendering_Backend;
106 }
107
onGetSize()108 SkIPoint SKPBench::onGetSize() {
109 return SkIPoint::Make(fClip.width(), fClip.height());
110 }
111
onDraw(int loops,SkCanvas * canvas)112 void SKPBench::onDraw(int loops, SkCanvas* canvas) {
113 SkASSERT(fDoLooping || 1 == loops);
114 while (1) {
115 if (fUseMultiPictureDraw) {
116 this->drawMPDPicture();
117 } else {
118 this->drawPicture();
119 }
120 if (0 == --loops) {
121 break;
122 }
123 #if SK_SUPPORT_GPU
124 // Ensure the GrContext doesn't combine ops across draw loops.
125 if (GrContext* context = canvas->getGrContext()) {
126 context->flush();
127 }
128 #endif
129 }
130 }
131
drawMPDPicture()132 void SKPBench::drawMPDPicture() {
133 SkMultiPictureDraw mpd;
134
135 for (int j = 0; j < fTileRects.count(); ++j) {
136 SkMatrix trans;
137 trans.setTranslate(-fTileRects[j].fLeft/fScale,
138 -fTileRects[j].fTop/fScale);
139 mpd.add(fSurfaces[j]->getCanvas(), fPic.get(), &trans);
140 }
141
142 mpd.draw();
143
144 for (int j = 0; j < fTileRects.count(); ++j) {
145 fSurfaces[j]->getCanvas()->flush();
146 }
147 }
148
drawPicture()149 void SKPBench::drawPicture() {
150 for (int j = 0; j < fTileRects.count(); ++j) {
151 const SkMatrix trans = SkMatrix::MakeTrans(-fTileRects[j].fLeft / fScale,
152 -fTileRects[j].fTop / fScale);
153 fSurfaces[j]->getCanvas()->drawPicture(fPic.get(), &trans, nullptr);
154 }
155
156 for (int j = 0; j < fTileRects.count(); ++j) {
157 fSurfaces[j]->getCanvas()->flush();
158 }
159 }
160
161 #if SK_SUPPORT_GPU
162 #include "GrGpu.h"
draw_pic_for_stats(SkCanvas * canvas,GrContext * context,const SkPicture * picture,SkTArray<SkString> * keys,SkTArray<double> * values,const char * tag)163 static void draw_pic_for_stats(SkCanvas* canvas, GrContext* context, const SkPicture* picture,
164 SkTArray<SkString>* keys, SkTArray<double>* values,
165 const char* tag) {
166 context->resetGpuStats();
167 canvas->drawPicture(picture);
168 canvas->flush();
169
170 int offset = keys->count();
171 context->dumpGpuStatsKeyValuePairs(keys, values);
172 context->dumpCacheStatsKeyValuePairs(keys, values);
173
174 // append tag, but only to new tags
175 for (int i = offset; i < keys->count(); i++, offset++) {
176 (*keys)[i].appendf("_%s", tag);
177 }
178 }
179 #endif
180
getGpuStats(SkCanvas * canvas,SkTArray<SkString> * keys,SkTArray<double> * values)181 void SKPBench::getGpuStats(SkCanvas* canvas, SkTArray<SkString>* keys, SkTArray<double>* values) {
182 #if SK_SUPPORT_GPU
183 // we do a special single draw and then dump the key / value pairs
184 GrContext* context = canvas->getGrContext();
185 if (!context) {
186 return;
187 }
188
189 // TODO refactor this out if we want to test other subclasses of skpbench
190 context->flush();
191 context->freeGpuResources();
192 context->resetContext();
193 context->contextPriv().getGpu()->resetShaderCacheForTesting();
194 draw_pic_for_stats(canvas, context, fPic.get(), keys, values, "first_frame");
195
196 // draw second frame
197 draw_pic_for_stats(canvas, context, fPic.get(), keys, values, "second_frame");
198
199 #endif
200 }
201