moz-skia/tools/bench_record.cpp

82 строки
2.7 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()");
DEFINE_int32(nullSize, 1000, "Pretend dimension of null source picture.");
static void bench_record(SkPicture* src, const char* name) {
const SkMSec start = SkTime::GetMSecs();
const int width = src ? src->width() : FLAGS_nullSize;
const int height = src ? src->height() : FLAGS_nullSize;
for (int i = 0; i < FLAGS_loops; i++) {
SkPicture dst;
SkCanvas* canvas = dst.beginRecording(width, height, FLAGS_flags);
if (src) src->draw(canvas);
if (FLAGS_endRecording) dst.endRecording();
}
const SkMSec elapsed = SkTime::GetMSecs() - start;
const double msPerLoop = elapsed / (double)FLAGS_loops;
printf("%.2g\t%s\n", msPerLoop, name);
}
int tool_main(int argc, char** argv);
int tool_main(int argc, char** argv) {
SkCommandLineFlags::Parse(argc, argv);
SkAutoGraphics autoGraphics;
bench_record(NULL, "NULL");
if (FLAGS_skps.isEmpty()) return 0;
SkOSFile::Iter it(FLAGS_skps[0], ".skp");
SkString filename;
bool failed = false;
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());
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;
}
bench_record(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