skia2/tools/bench_playback.cpp
commit-bot@chromium.org 172eb1baaf Add --timescale to bench_record and bench_playback.
Default bench_record to report us, bench_playback ms.

BUG=skia:2378
R=mtklein@google.com

Author: mtklein@chromium.org

Review URL: https://codereview.chromium.org/253843004

git-svn-id: http://skia.googlecode.com/svn/trunk@14417 2bbb7eff-a529-9590-31e7-b0007b416f81
2014-04-28 19:41:17 +00:00

114 lines
3.8 KiB
C++

/*
* 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 "BenchTimer.h"
#include "SkCommandLineFlags.h"
#include "SkForceLinking.h"
#include "SkGraphics.h"
#include "SkOSFile.h"
#include "SkPicture.h"
#include "SkRecordDraw.h"
#include "SkRecordOpts.h"
#include "SkRecorder.h"
#include "SkStream.h"
#include "SkString.h"
__SK_FORCE_IMAGE_DECODER_LINKING;
DEFINE_string2(skps, r, "skps", "Directory containing SKPs to read and re-record.");
DEFINE_int32(loops, 10, "Number of times to play back each SKP.");
DEFINE_bool(skr, false, "Play via SkRecord instead of SkPicture.");
DEFINE_int32(tile, 1000000000, "Simulated tile size.");
DEFINE_string(match, "", "The usual filters on file names of SKPs to bench.");
DEFINE_string(timescale, "ms", "Print times in ms, us, or ns");
static double scale_time(double ms) {
if (FLAGS_timescale.contains("us")) ms *= 1000;
if (FLAGS_timescale.contains("ns")) ms *= 1000000;
return ms;
}
static void bench(SkPMColor* scratch, SkPicture& src, const char* name) {
// We don't use the public SkRecording interface here because we need kWriteOnly_Mode.
// (We don't want SkPicturePlayback to be able to optimize playing into our SkRecord.)
SkRecord record;
SkRecorder recorder(SkRecorder::kWriteOnly_Mode, &record, src.width(), src.height());
src.draw(&recorder);
SkRecordOptimize(&record);
SkAutoTDelete<SkCanvas> canvas(SkCanvas::NewRasterDirectN32(src.width(),
src.height(),
scratch,
src.width() * sizeof(SkPMColor)));
canvas->clipRect(SkRect::MakeWH(SkIntToScalar(FLAGS_tile), SkIntToScalar(FLAGS_tile)));
BenchTimer timer;
timer.start();
for (int i = 0; i < FLAGS_loops; i++) {
if (FLAGS_skr) {
SkRecordDraw(record, canvas.get());
} else {
src.draw(canvas.get());
}
}
timer.end();
const double msPerLoop = timer.fCpu / (double)FLAGS_loops;
printf("%f\t%s\n", scale_time(msPerLoop), name);
}
int tool_main(int argc, char** argv);
int tool_main(int argc, char** argv) {
SkCommandLineFlags::Parse(argc, argv);
SkAutoGraphics autoGraphics;
// We share a single scratch bitmap among benches to reduce the profile noise from allocation.
static const int kMaxArea = 209825221; // tabl_mozilla is this big.
SkAutoTMalloc<SkPMColor> scratch(kMaxArea);
SkOSFile::Iter it(FLAGS_skps[0], ".skp");
SkString filename;
bool failed = false;
while (it.next(&filename)) {
if (SkCommandLineFlags::ShouldSkip(FLAGS_match, filename.c_str())) {
continue;
}
const SkString path = SkOSPath::SkPathJoin(FLAGS_skps[0], filename.c_str());
SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path.c_str()));
if (!stream) {
SkDebugf("Could not read %s.\n", path.c_str());
failed = true;
continue;
}
SkAutoTUnref<SkPicture> src(SkPicture::CreateFromStream(stream));
if (!src) {
SkDebugf("Could not read %s as an SkPicture.\n", path.c_str());
failed = true;
continue;
}
if (src->width() * src->height() > kMaxArea) {
SkDebugf("%s (%dx%d) is larger than hardcoded scratch bitmap (%dpx).\n",
path.c_str(), src->width(), src->height(), kMaxArea);
failed = true;
continue;
}
bench(scratch.get(), *src, filename.c_str());
}
return failed ? 1 : 0;
}
#if !defined SK_BUILD_FOR_IOS
int main(int argc, char * const argv[]) {
return tool_main(argc, (char**) argv);
}
#endif