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