skia2/tools/bench_record.cpp
commit-bot@chromium.org 15ac322aae Add bench_record.
I got fed up trying to figure out how best to measure recording cost with bench_pictures, render_pictures, etc, so I wrote a new tool.

Features welcome.

BUG=
R=tomhudson@google.com

Author: mtklein@google.com

Review URL: https://codereview.chromium.org/132573002

git-svn-id: http://skia.googlecode.com/svn/trunk@13037 2bbb7eff-a529-9590-31e7-b0007b416f81
2014-01-13 12:03:47 +00:00

69 lines
2.2 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 "SkCommandLineFlags.h"
#include "SkForceLinking.h"
#include "SkGraphics.h"
#include "SkOSFile.h"
#include "SkPicture.h"
#include "SkStream.h"
#include "SkString.h"
#include "SkTime.h"
__SK_FORCE_IMAGE_DECODER_LINKING;
// Just reading all the SKPs takes about 2 seconds for me, which is the same as about 100 loops of
// rerecording all the SKPs. So we default to --loops=900, which makes ~90% of our time spent in
// recording, and this should take ~20 seconds to run.
DEFINE_string2(skps, r, "skps", "Directory containing SKPs to read and re-record.");
DEFINE_int32(loops, 900, "Number of times to re-record each SKP.");
DEFINE_int32(flags, SkPicture::kUsePathBoundsForClip_RecordingFlag, "RecordingFlags to use.");
DEFINE_bool(endRecording, true, "If false, don't time SkPicture::endRecording()");
int tool_main(int argc, char** argv);
int tool_main(int argc, char** argv) {
SkCommandLineFlags::Parse(argc, argv);
SkAutoGraphics autoGraphics;
SkOSFile::Iter it(FLAGS_skps[0], ".skp");
SkString filename;
while (it.next(&filename)) {
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());
continue;
}
SkAutoTUnref<SkPicture> src(SkPicture::CreateFromStream(stream));
if (!src) {
SkDebugf("Could not read %s as an SkPicture.\n", path.c_str());
continue;
}
const SkMSec start = SkTime::GetMSecs();
for (int i = 0; i < FLAGS_loops; i++) {
SkPicture dst;
src->draw(dst.beginRecording(src->width(), src->height(), FLAGS_flags));
if (FLAGS_endRecording) dst.endRecording();
}
const SkMSec elapsed = SkTime::GetMSecs() - start;
const double msPerLoop = elapsed / (double)FLAGS_loops;
printf("%4.2f\t%s\n", msPerLoop, filename.c_str());
}
return 0;
}
#if !defined SK_BUILD_FOR_IOS
int main(int argc, char * const argv[]) {
return tool_main(argc, (char**) argv);
}
#endif