Add MultiPictureDraw to nanobench

bench/nanobench.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <ctype.h>
 
 #include "Benchmark.h"
 #include "CrashHandler.h"
 #include "GMBench.h"
 #include "ProcStats.h"
 #include "ResultsWriter.h"
 #include "RecordingBench.h"
 #include "SKPBench.h"
 #include "Stats.h"
 #include "Timer.h"
 
 #include "SkBBoxHierarchy.h"
 #include "SkCanvas.h"
 #include "SkCommonFlags.h"
 #include "SkForceLinking.h"
 #include "SkGraphics.h"
 #include "SkOSFile.h"
 #include "SkPictureRecorder.h"
 #include "SkString.h"
 #include "SkSurface.h"
+#include "SkTaskGroup.h"
 
 #if SK_SUPPORT_GPU
     #include "gl/GrGLDefines.h"
     #include "GrContextFactory.h"
     SkAutoTDelete<GrContextFactory> gGrFactory;
 #endif
 
 __SK_FORCE_IMAGE_DECODER_LINKING;
 
 static const int kAutoTuneLoops = 0;
@@ skipping 24 matching lines @@
 DEFINE_bool(gpuCompressAlphaMasks, false, "Compress masks generated from falling back to "
                                           "software path rendering.");
 
 DEFINE_string(outResultsFile, "", "If given, write results here as JSON.");
 DEFINE_int32(maxCalibrationAttempts, 3,
              "Try up to this many times to guess loops for a bench, or skip the bench.");
 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) {
     if (FLAGS_verbose) return SkStringPrintf("%llu", (uint64_t)(ms*1e6));
     if (ms > 1e+3)     return SkStringPrintf("%.3gs",  ms/1e3);
     if (ms < 1e-3)     return SkStringPrintf("%.3gns", ms*1e6);
 #ifdef SK_BUILD_FOR_WIN
     if (ms < 1)        return SkStringPrintf("%.3gus", ms*1e3);
 #else
     if (ms < 1)        return SkStringPrintf("%.3gµs", ms*1e3);
@@ skipping 347 matching lines @@
     log->configOption("GL_SHADING_LANGUAGE_VERSION", (const char*) version);
 }
 #endif
 
 class BenchmarkStream {
 public:
     BenchmarkStream() : fBenches(BenchRegistry::Head())
                       , 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];
             } else {
                 SkOSFile::Iter it(FLAGS_skps[i], ".skp");
                 SkString path;
                 while (it.next(&path)) {
                     fSKPs.push_back() = SkOSPath::Join(FLAGS_skps[0], path.c_str());
                 }
             }
         }
 
         if (4 != sscanf(FLAGS_clip[0], "%d,%d,%d,%d",
                         &fClip.fLeft, &fClip.fTop, &fClip.fRight, &fClip.fBottom)) {
             SkDebugf("Can't parse %s from --clip as an SkIRect.\n", FLAGS_clip[0]);
             exit(1);
         }
 
         for (int i = 0; i < FLAGS_scales.count(); i++) {
             if (1 != sscanf(FLAGS_scales[i], "%f", &fScales.push_back())) {
                 SkDebugf("Can't parse %s from --scales as an SkScalar.\n", FLAGS_scales[i]);
                 exit(1);
             }
         }
+
+        fUseMPDs.push_back() = false;
+        if (FLAGS_mpd) {
+            fUseMPDs.push_back() = true;
+        }
     }
 
     static bool ReadPicture(const char* path, SkAutoTUnref<SkPicture>* pic) {
         // Not strictly necessary, as it will be checked again later,
         // but helps to avoid a lot of pointless work if we're going to skip it.
         if (SkCommandLineFlags::ShouldSkip(FLAGS_match, path)) {
             return false;
         }
 
         SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path));
@@ skipping 38 matching lines @@
             }
             SkString name = SkOSPath::Basename(path.c_str());
             fSourceType = "skp";
             fBenchType  = "recording";
             return SkNEW_ARGS(RecordingBench, (name.c_str(), pic.get(), FLAGS_bbh));
         }
 
         // 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;
                 }
-                if (FLAGS_bbh) {
-                    // The SKP we read off disk doesn't have a BBH.  Re-record so it grows one.
-                    SkRTreeFactory factory;
-                    SkPictureRecorder recorder;
-                    pic->playback(recorder.beginRecording(pic->cullRect().width(),
-                                                          pic->cullRect().height(),
-                                                          &factory));
-                    pic.reset(recorder.endRecording());
+
+                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, 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], fUseMPDs[fCurrentUseMPD++]));
                 }
-                SkString name = SkOSPath::Basename(path.c_str());
-                fSourceType = "skp";
-                fBenchType  = "playback";
-                return SkNEW_ARGS(SKPBench,
-                        (name.c_str(), pic.get(), fClip, fScales[fCurrentScale]));
+                fCurrentUseMPD = 0;
+                fCurrentSKP++;
             }
             fCurrentSKP = 0;
             fCurrentScale++;
         }
 
         return NULL;
     }
 
     void fillCurrentOptions(ResultsWriter* log) const {
         log->configOption("source_type", fSourceType);
         log->configOption("bench_type",  fBenchType);
         if (0 == strcmp(fSourceType, "skp")) {
             log->configOption("clip",
                     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");
+            }
         }
     }
 
 private:
     const BenchRegistry* fBenches;
     const skiagm::GMRegistry* fGMs;
     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;
+    SkTaskGroup::Enabler enabled;
 
 #if SK_SUPPORT_GPU
     GrContext::Options grContextOpts;
     grContextOpts.fDrawPathToCompressedTexture = FLAGS_gpuCompressAlphaMasks;
     gGrFactory.reset(SkNEW_ARGS(GrContextFactory, (grContextOpts)));
 #endif
 
     if (FLAGS_veryVerbose) {
         FLAGS_verbose = true;
     }
@@ skipping 63 matching lines @@
         create_targets(&targets, bench.get(), configs);
 
         if (!targets.isEmpty()) {
             log->bench(bench->getUniqueName(), bench->getSize().fX, bench->getSize().fY);
             bench->preDraw();
         }
         for (int j = 0; j < targets.count(); j++) {
             SkCanvas* canvas = targets[j]->surface.get() ? targets[j]->surface->getCanvas() : NULL;
             const char* config = targets[j]->config.name;
 
+            bench->perCanvasPreDraw(canvas);
+
             const int loops =
 #if SK_SUPPORT_GPU
                 Benchmark::kGPU_Backend == targets[j]->config.backend
                 ? gpu_bench(targets[j]->gl, bench.get(), canvas, samples.get())
                 :
 #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());
                 pngFilename.append(".png");
                 write_canvas_png(canvas, pngFilename);
             }
 
             if (kFailedLoops == loops) {
                 // Can't be timed.  A warning note has already been printed.
                 continue;
@@ skipping 71 matching lines @@
 
     return 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char** argv) {
     SkCommandLineFlags::Parse(argc, argv);
     return nanobench_main();
 }
 #endif