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Add MultiPictureDraw to nanobench

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I would like some guard against performance regressions on our side before turning layer hoisting on in Chromium.

TBR=bsalomon@google.com

Committed: https://skia.googlesource.com/skia/+/0ddad31012dabfc1267effc8071d37f7d606efbe

Review URL: https://codereview.chromium.org/731973005
This commit is contained in:
robertphillips 2014-11-21 06:19:36 -08:00 committed by Commit bot
parent e77dadd91a
commit 5b69377507
7 changed files with 176 additions and 41 deletions
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8
bench/Benchmark.cpp
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@ -37,6 +37,14 @@ void Benchmark::preDraw() {
this->onPreDraw();
}
void Benchmark::perCanvasPreDraw(SkCanvas* canvas) {
this->onPerCanvasPreDraw(canvas);
}
void Benchmark::perCanvasPostDraw(SkCanvas* canvas) {
this->onPerCanvasPostDraw(canvas);
}
void Benchmark::draw(const int loops, SkCanvas* canvas) {
SkAutoCanvasRestore ar(canvas, true/*save now*/);
this->onDraw(loops, canvas);

7
bench/Benchmark.h
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@ -70,6 +70,11 @@ public:
// before the initial draw.
void preDraw();
// Called once before and after a series of draw calls to a single canvas.
// The setup/break down in these calls is not timed.
void perCanvasPreDraw(SkCanvas*);
void perCanvasPostDraw(SkCanvas*);
// Bench framework can tune loops to be large enough for stable timing.
void draw(const int loops, SkCanvas*);
@ -101,6 +106,8 @@ protected:
virtual const char* onGetName() = 0;
virtual const char* onGetUniqueName() { return this->onGetName(); }
virtual void onPreDraw() {}
virtual void onPerCanvasPreDraw(SkCanvas*) {}
virtual void onPerCanvasPostDraw(SkCanvas*) {}
// Each bench should do its main work in a loop like this:
// for (int i = 0; i < loops; i++) { <work here> }
virtual void onDraw(const int loops, SkCanvas*) = 0;

80
bench/SKPBench.cpp
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@ -7,15 +7,28 @@
#include "SKPBench.h"
#include "SkCommandLineFlags.h"
#include "SkMultiPictureDraw.h"
#include "SkSurface.h"
DEFINE_int32(benchTile, 256, "Tile dimension used for SKP playback.");
SKPBench::SKPBench(const char* name, const SkPicture* pic, const SkIRect& clip, SkScalar scale)
SKPBench::SKPBench(const char* name, const SkPicture* pic, const SkIRect& clip, SkScalar scale,
bool useMultiPictureDraw)
: fPic(SkRef(pic))
, fClip(clip)
, fScale(scale)
, fName(name) {
, fName(name)
, fUseMultiPictureDraw(useMultiPictureDraw) {
fUniqueName.printf("%s_%.2g", name, scale); // Scale makes this unqiue for skiaperf.com traces.
if (useMultiPictureDraw) {
fUniqueName.append("_mpd");
}
}
SKPBench::~SKPBench() {
for (int i = 0; i < fSurfaces.count(); ++i) {
fSurfaces[i]->unref();
}
}
const char* SKPBench::onGetName() {
@ -26,6 +39,49 @@ const char* SKPBench::onGetUniqueName() {
return fUniqueName.c_str();
}
void SKPBench::onPerCanvasPreDraw(SkCanvas* canvas) {
if (!fUseMultiPictureDraw) {
return;
}
SkIRect bounds;
SkAssertResult(canvas->getClipDeviceBounds(&bounds));
int xTiles = SkScalarCeilToInt(bounds.width() / SkIntToScalar(FLAGS_benchTile));
int yTiles = SkScalarCeilToInt(bounds.height() / SkIntToScalar(FLAGS_benchTile));
fSurfaces.setReserve(xTiles * yTiles);
fTileRects.setReserve(xTiles * yTiles);
SkImageInfo ii = canvas->imageInfo().makeWH(FLAGS_benchTile, FLAGS_benchTile);
for (int y = bounds.fTop; y < bounds.fBottom; y += FLAGS_benchTile) {
for (int x = bounds.fLeft; x < bounds.fRight; x += FLAGS_benchTile) {
*fTileRects.append() = SkIRect::MakeXYWH(x, y, FLAGS_benchTile, FLAGS_benchTile);
*fSurfaces.push() = canvas->newSurface(ii);
fSurfaces.top()->getCanvas()->setMatrix(canvas->getTotalMatrix());
fSurfaces.top()->getCanvas()->scale(fScale, fScale);
}
}
}
void SKPBench::onPerCanvasPostDraw(SkCanvas* canvas) {
if (!fUseMultiPictureDraw) {
return;
}
// Draw the last set of tiles into the master canvas in case we're
// saving the images
for (int i = 0; i < fTileRects.count(); ++i) {
canvas->drawImage(fSurfaces[i]->newImageSnapshot(),
SkIntToScalar(fTileRects[i].fLeft), SkIntToScalar(fTileRects[i].fTop));
SkSafeSetNull(fSurfaces[i]);
}
fSurfaces.rewind();
fTileRects.rewind();
}
bool SKPBench::isSuitableFor(Backend backend) {
return backend != kNonRendering_Backend;
}
@ -35,6 +91,24 @@ SkIPoint SKPBench::onGetSize() {
}
void SKPBench::onDraw(const int loops, SkCanvas* canvas) {
if (fUseMultiPictureDraw) {
for (int i = 0; i < loops; i++) {
SkMultiPictureDraw mpd;
for (int i = 0; i < fTileRects.count(); ++i) {
SkMatrix trans;
trans.setTranslate(-fTileRects[i].fLeft/fScale,
-fTileRects[i].fTop/fScale);
mpd.add(fSurfaces[i]->getCanvas(), fPic, &trans);
}
mpd.draw();
for (int i = 0; i < fTileRects.count(); ++i) {
fSurfaces[i]->getCanvas()->flush();
}
}
} else {
SkIRect bounds;
SkAssertResult(canvas->getClipDeviceBounds(&bounds));
@ -50,6 +124,8 @@ void SKPBench::onDraw(const int loops, SkCanvas* canvas) {
fPic->playback(canvas);
}
}
canvas->flush();
}
}
}

20
bench/SKPBench.h
View File

@ -17,14 +17,18 @@
*/
class SKPBench : public Benchmark {
public:
SKPBench(const char* name, const SkPicture*, const SkIRect& devClip, SkScalar scale);
SKPBench(const char* name, const SkPicture*, const SkIRect& devClip, SkScalar scale,
bool useMultiPictureDraw);
~SKPBench() SK_OVERRIDE;
protected:
virtual const char* onGetName() SK_OVERRIDE;
virtual const char* onGetUniqueName() SK_OVERRIDE;
virtual bool isSuitableFor(Backend backend) SK_OVERRIDE;
virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE;
virtual SkIPoint onGetSize() SK_OVERRIDE;
const char* onGetName() SK_OVERRIDE;
const char* onGetUniqueName() SK_OVERRIDE;
void onPerCanvasPreDraw(SkCanvas*) SK_OVERRIDE;
void onPerCanvasPostDraw(SkCanvas*) SK_OVERRIDE;
bool isSuitableFor(Backend backend) SK_OVERRIDE;
void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE;
SkIPoint onGetSize() SK_OVERRIDE;
private:
SkAutoTUnref<const SkPicture> fPic;
@ -33,6 +37,10 @@ private:
SkString fName;
SkString fUniqueName;
const bool fUseMultiPictureDraw;
SkTDArray<SkSurface*> fSurfaces; // for MultiPictureDraw
SkTDArray<SkIRect> fTileRects; // for MultiPictureDraw
typedef Benchmark INHERITED;
};

52
bench/nanobench.cpp
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@ -26,6 +26,7 @@
#include "SkPictureRecorder.h"
#include "SkString.h"
#include "SkSurface.h"
#include "SkTaskGroup.h"
#if SK_SUPPORT_GPU
#include "gl/GrGLDefines.h"
@ -70,6 +71,7 @@ DEFINE_int32(maxLoops, 1000000, "Never run a bench more times than this.");
DEFINE_string(clip, "0,0,1000,1000", "Clip for SKPs.");
DEFINE_string(scales, "1.0", "Space-separated scales for SKPs.");
DEFINE_bool(bbh, true, "Build a BBH for SKPs?");
DEFINE_bool(mpd, true, "Use MultiPictureDraw for the SKPs?");
DEFINE_int32(flushEvery, 10, "Flush --outResultsFile every Nth run.");
static SkString humanize(double ms) {
@ -215,14 +217,16 @@ static int cpu_bench(const double overhead, Benchmark* bench, SkCanvas* canvas,
}
#if SK_SUPPORT_GPU
static void setup_gl(SkGLContext* gl) {
gl->makeCurrent();
// Make sure we're done with whatever came before.
SK_GL(*gl, Finish());
}
static int gpu_bench(SkGLContext* gl,
Benchmark* bench,
SkCanvas* canvas,
double* samples) {
gl->makeCurrent();
// Make sure we're done with whatever came before.
SK_GL(*gl, Finish());
// First, figure out how many loops it'll take to get a frame up to FLAGS_gpuMs.
int loops = FLAGS_loops;
if (kAutoTuneLoops == loops) {
@ -437,7 +441,8 @@ public:
, fGMs(skiagm::GMRegistry::Head())
, fCurrentRecording(0)
, fCurrentScale(0)
, fCurrentSKP(0) {
, fCurrentSKP(0)
, fCurrentUseMPD(0) {
for (int i = 0; i < FLAGS_skps.count(); i++) {
if (SkStrEndsWith(FLAGS_skps[i], ".skp")) {
fSKPs.push_back() = FLAGS_skps[i];
@ -462,6 +467,11 @@ public:
exit(1);
}
}
fUseMPDs.push_back() = false;
if (FLAGS_mpd) {
fUseMPDs.push_back() = true;
}
}
static bool ReadPicture(const char* path, SkAutoTUnref<SkPicture>* pic) {
@ -520,25 +530,33 @@ public:
// Then once each for each scale as SKPBenches (playback).
while (fCurrentScale < fScales.count()) {
while (fCurrentSKP < fSKPs.count()) {
const SkString& path = fSKPs[fCurrentSKP++];
const SkString& path = fSKPs[fCurrentSKP];
SkAutoTUnref<SkPicture> pic;
if (!ReadPicture(path.c_str(), &pic)) {
fCurrentSKP++;
continue;
}
while (fCurrentUseMPD < fUseMPDs.count()) {
if (FLAGS_bbh) {
// The SKP we read off disk doesn't have a BBH. Re-record so it grows one.
SkRTreeFactory factory;
SkPictureRecorder recorder;
static const int kFlags = SkPictureRecorder::kComputeSaveLayerInfo_RecordFlag;
pic->playback(recorder.beginRecording(pic->cullRect().width(),
pic->cullRect().height(),
&factory));
&factory, kFlags));
pic.reset(recorder.endRecording());
}
SkString name = SkOSPath::Basename(path.c_str());
fSourceType = "skp";
fBenchType = "playback";
return SkNEW_ARGS(SKPBench,
(name.c_str(), pic.get(), fClip, fScales[fCurrentScale]));
(name.c_str(), pic.get(), fClip,
fScales[fCurrentScale], fUseMPDs[fCurrentUseMPD++]));
}
fCurrentUseMPD = 0;
fCurrentSKP++;
}
fCurrentSKP = 0;
fCurrentScale++;
@ -555,6 +573,10 @@ public:
SkStringPrintf("%d %d %d %d", fClip.fLeft, fClip.fTop,
fClip.fRight, fClip.fBottom).c_str());
log->configOption("scale", SkStringPrintf("%.2g", fScales[fCurrentScale]).c_str());
if (fCurrentUseMPD > 0) {
SkASSERT(1 == fCurrentUseMPD || 2 == fCurrentUseMPD);
log->configOption("multi_picture_draw", fUseMPDs[fCurrentUseMPD-1] ? "true" : "false");
}
}
}
@ -564,18 +586,22 @@ private:
SkIRect fClip;
SkTArray<SkScalar> fScales;
SkTArray<SkString> fSKPs;
SkTArray<bool> fUseMPDs;
const char* fSourceType; // What we're benching: bench, GM, SKP, ...
const char* fBenchType; // How we bench it: micro, recording, playback, ...
int fCurrentRecording;
int fCurrentScale;
int fCurrentSKP;
int fCurrentUseMPD;
};
int nanobench_main();
int nanobench_main() {
SetupCrashHandler();
SkAutoGraphics ag;
// Multithreading is disabled pending resolution of skia:3149
//SkTaskGroup::Enabler enabled;
#if SK_SUPPORT_GPU
GrContext::Options grContextOpts;
@ -659,6 +685,14 @@ int nanobench_main() {
SkCanvas* canvas = targets[j]->surface.get() ? targets[j]->surface->getCanvas() : NULL;
const char* config = targets[j]->config.name;
#if SK_SUPPORT_GPU
if (Benchmark::kGPU_Backend == targets[j]->config.backend) {
setup_gl(targets[j]->gl);
}
#endif
bench->perCanvasPreDraw(canvas);
const int loops =
#if SK_SUPPORT_GPU
Benchmark::kGPU_Backend == targets[j]->config.backend
@ -667,6 +701,8 @@ int nanobench_main() {
#endif
cpu_bench( overhead, bench.get(), canvas, samples.get());
bench->perCanvasPostDraw(canvas);
if (canvas && !FLAGS_writePath.isEmpty() && FLAGS_writePath[0]) {
SkString pngFilename = SkOSPath::Join(FLAGS_writePath[0], config);
pngFilename = SkOSPath::Join(pngFilename.c_str(), bench->getUniqueName());

2
include/core/SkColorTable.h
View File

@ -65,7 +65,7 @@ public:
*/
void unlock16BitCache() {
SkASSERT(f16BitCacheLockCount > 0);
SkDEBUGCODE(f16BitCacheLockCount -= 1);
SkDEBUGCODE(sk_atomic_dec(&f16BitCacheLockCount);)
}
explicit SkColorTable(SkReadBuffer&);

2
src/core/SkColorTable.cpp
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@ -70,7 +70,7 @@ const uint16_t* SkColorTable::lock16BitCache() {
build_16bitcache(f16BitCache, fColors, fCount);
}
SkDEBUGCODE(f16BitCacheLockCount += 1);
SkDEBUGCODE(sk_atomic_inc(&f16BitCacheLockCount));
return f16BitCache;
}