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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
*/
#include "VisualBench.h"
#include "ProcStats.h"
#include "SkApplication.h"
#include "SkCanvas.h"
#include "SkCommandLineFlags.h"
#include "SkCommonFlags.h"
#include "SkForceLinking.h"
#include "SkGraphics.h"
#include "SkGr.h"
#include "SkImageDecoder.h"
#include "SkOSFile.h"
#include "SkStream.h"
#include "Stats.h"
#include "gl/GrGLInterface.h"
__SK_FORCE_IMAGE_DECODER_LINKING;
DEFINE_int32(gpuFrameLag, 5, "Overestimate of maximum number of frames GPU allows to lag.");
DEFINE_int32(samples, 10, "Number of times to render each skp.");
DEFINE_int32(loops, 5, "Number of times to time.");
DEFINE_int32(msaa, 0, "Number of msaa samples.");
static SkString humanize(double ms) {
if (FLAGS_verbose) {
return SkStringPrintf("%llu", (uint64_t)(ms*1e6));
}
return HumanizeMs(ms);
}
#define HUMANIZE(time) humanize(time).c_str()
VisualBench::VisualBench(void* hwnd, int argc, char** argv)
: INHERITED(hwnd)
, fLoop(0)
, fCurrentPicture(0)
, fCurrentSample(0)
, fState(kPreWarm_State) {
SkCommandLineFlags::Parse(argc, argv);
// load all SKPs
SkTArray<SkString> skps;
for (int i = 0; i < FLAGS_skps.count(); i++) {
if (SkStrEndsWith(FLAGS_skps[i], ".skp")) {
skps.push_back() = FLAGS_skps[i];
fTimings.push_back().fName = FLAGS_skps[i];
} else {
SkOSFile::Iter it(FLAGS_skps[i], ".skp");
SkString path;
while (it.next(&path)) {
skps.push_back() = SkOSPath::Join(FLAGS_skps[0], path.c_str());
fTimings.push_back().fName = path.c_str();
}
}
}
for (int i = 0; i < skps.count(); i++) {
SkFILEStream stream(skps[i].c_str());
if (stream.isValid()) {
fPictures.push_back(SkPicture::CreateFromStream(&stream));
} else {
SkDebugf("couldn't load picture at \"path\"\n", skps[i].c_str());
}
}
if (fPictures.empty()) {
SkDebugf("no valid skps found\n");
}
this->setTitle();
this->setupBackend();
}
VisualBench::~VisualBench() {
for (int i = 0; i < fPictures.count(); i++) {
fPictures[i]->~SkPicture();
}
INHERITED::detach();
}
void VisualBench::setTitle() {
SkString title("VisualBench");
INHERITED::setTitle(title.c_str());
}
SkSurface* VisualBench::createSurface() {
SkSurfaceProps props(INHERITED::getSurfaceProps());
return SkSurface::NewRenderTargetDirect(fRenderTarget, &props);
}
bool VisualBench::setupBackend() {
this->setColorType(kRGBA_8888_SkColorType);
this->setVisibleP(true);
this->setClipToBounds(false);
if (!this->attach(kNativeGL_BackEndType, FLAGS_msaa, &fAttachmentInfo)) {
SkDebugf("Not possible to create backend.\n");
INHERITED::detach();
return false;
}
this->setFullscreen(true);
this->setVsync(false);
this->resetContext();
return true;
}
void VisualBench::resetContext() {
fInterface.reset(GrGLCreateNativeInterface());
SkASSERT(fInterface);
// setup contexts
fContext.reset(GrContext::Create(kOpenGL_GrBackend, (GrBackendContext)fInterface.get()));
SkASSERT(fContext);
// setup rendertargets
this->setupRenderTarget();
}
void VisualBench::setupRenderTarget() {
fRenderTarget.reset(this->renderTarget(fAttachmentInfo, fInterface, fContext));
}
inline void VisualBench::renderFrame(SkCanvas* canvas) {
canvas->drawPicture(fPictures[fCurrentPicture]);
fContext->flush();
INHERITED::present();
}
void VisualBench::printStats() {
const SkTArray<double>& measurements = fTimings[fCurrentPicture].fMeasurements;
if (FLAGS_verbose) {
for (int i = 0; i < measurements.count(); i++) {
SkDebugf("%s ", HUMANIZE(measurements[i]));
}
SkDebugf("%s\n", fTimings[fCurrentPicture].fName.c_str());
} else {
SkASSERT(measurements.count());
Stats stats(measurements.begin(), measurements.count());
const double stdDevPercent = 100 * sqrt(stats.var) / stats.mean;
SkDebugf("%4d/%-4dMB\t%s\t%s\t%s\t%s\t%.0f%%\t%s\n",
sk_tools::getCurrResidentSetSizeMB(),
sk_tools::getMaxResidentSetSizeMB(),
HUMANIZE(stats.min),
HUMANIZE(stats.median),
HUMANIZE(stats.mean),
HUMANIZE(stats.max),
stdDevPercent,
fTimings[fCurrentPicture].fName.c_str());
}
}
void VisualBench::timePicture(SkCanvas* canvas) {
this->renderFrame(canvas);
switch (fState) {
case kPreWarm_State: {
if (fCurrentSample >= FLAGS_gpuFrameLag) {
// TODO we currently time across all frames to make sure we capture all GPU work
// We should also rendering an empty SKP to get a baseline to subtract from
// our timing
fState = kTiming_State;
fCurrentSample -= FLAGS_gpuFrameLag;
fTimer.start();
} else {
fCurrentSample++;
}
break;
}
case kTiming_State: {
if (fCurrentSample >= FLAGS_samples) {
fTimer.end();
fTimings[fCurrentPicture].fMeasurements.push_back(fTimer.fWall / FLAGS_samples);
this->resetContext();
fTimer = WallTimer();
fState = kPreWarm_State;
fCurrentSample = 0;
if (fLoop++ > FLAGS_loops) {
this->printStats();
fCurrentPicture++;
fLoop = 0;
}
} else {
fCurrentSample++;
}
break;
}
}
}
void VisualBench::draw(SkCanvas* canvas) {
if (fCurrentPicture < fPictures.count()) {
this->timePicture(canvas);
} else {
this->closeWindow();
}
// Invalidate the window to force a redraw. Poor man's animation mechanism.
this->inval(NULL);
}
void VisualBench::onSizeChange() {
this->setupRenderTarget();
}
bool VisualBench::onHandleChar(SkUnichar unichar) {
return true;
}
// Externally declared entry points
void application_init() {
SkGraphics::Init();
SkEvent::Init();
}
void application_term() {
SkEvent::Term();
SkGraphics::Term();
}
SkOSWindow* create_sk_window(void* hwnd, int argc, char** argv) {
return new VisualBench(hwnd, argc, argv);
}
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