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Unified Diff: tools/VisualBench/VisualInteractiveModule.cpp

Issue 1336043003: Add viewer mode to VisualBench. (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Fix init order Created 5 years, 3 months ago
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Index: tools/VisualBench/VisualInteractiveModule.cpp
diff --git a/tools/VisualBench/VisualInteractiveModule.cpp b/tools/VisualBench/VisualInteractiveModule.cpp
new file mode 100755
index 0000000000000000000000000000000000000000..538dda7a44b794310caacfeb9cd84bea7fd3a97d
--- /dev/null
+++ b/tools/VisualBench/VisualInteractiveModule.cpp
@@ -0,0 +1,230 @@
+/*
+ * 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 "VisualInteractiveModule.h"
+
+#include "ProcStats.h"
+#include "SkApplication.h"
+#include "SkCanvas.h"
+#include "SkCommandLineFlags.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;
+
+static const int kGpuFrameLag = 5;
+static const int kFrames = 5;
+static const double kLoopMs = 5;
+
+VisualInteractiveModule::VisualInteractiveModule(VisualBench* owner)
+ : fCurrentMeasurement(0)
+ , fCurrentFrame(0)
+ , fLoops(1)
+ , fState(kPreWarmLoops_State)
+ , fBenchmark(nullptr)
+ , fOwner(SkRef(owner)) {
+ fBenchmarkStream.reset(new VisualBenchmarkStream);
+
+ memset(fMeasurements, 0, sizeof(fMeasurements));
+}
+
+inline void VisualInteractiveModule::renderFrame(SkCanvas* canvas) {
+ fBenchmark->draw(fLoops, canvas);
+ this->drawStats(canvas);
+ canvas->flush();
+ fOwner->present();
+}
+
+void VisualInteractiveModule::drawStats(SkCanvas* canvas) {
+ static const float kPixelPerMS = 2.0f;
+ static const int kDisplayWidth = 130;
+ static const int kDisplayHeight = 100;
+ static const int kDisplayPadding = 10;
+ static const int kGraphPadding = 3;
+ static const float kBaseMS = 1000.f / 60.f; // ms/frame to hit 60 fps
+
+ SkISize canvasSize = canvas->getDeviceSize();
+ SkRect rect = SkRect::MakeXYWH(SkIntToScalar(canvasSize.fWidth-kDisplayWidth-kDisplayPadding),
+ SkIntToScalar(kDisplayPadding),
+ SkIntToScalar(kDisplayWidth), SkIntToScalar(kDisplayHeight));
+ SkPaint paint;
+ canvas->clipRect(rect);
+ paint.setColor(SK_ColorBLACK);
+ canvas->drawRect(rect, paint);
+ // draw the 16ms line
+ paint.setColor(SK_ColorLTGRAY);
+ canvas->drawLine(rect.fLeft, rect.fBottom - kBaseMS*kPixelPerMS,
+ rect.fRight, rect.fBottom - kBaseMS*kPixelPerMS, paint);
+ paint.setColor(SK_ColorRED);
+ paint.setStyle(SkPaint::kStroke_Style);
+ canvas->drawRect(rect, paint);
+
+ int x = SkScalarTruncToInt(rect.fLeft) + kGraphPadding;
+ const int xStep = 2;
+ const int startY = SkScalarTruncToInt(rect.fBottom);
+ int i = fCurrentMeasurement;
+ do {
+ int endY = startY - (int)(fMeasurements[i] * kPixelPerMS + 0.5); // round to nearest value
+ canvas->drawLine(SkIntToScalar(x), SkIntToScalar(startY),
+ SkIntToScalar(x), SkIntToScalar(endY), paint);
+ i++;
+ i &= (kMeasurementCount - 1); // fast mod
+ x += xStep;
+ } while (i != fCurrentMeasurement);
+
+}
+
+bool VisualInteractiveModule::advanceRecordIfNecessary(SkCanvas* canvas) {
+ if (fBenchmark) {
+ return true;
+ }
+
+ fBenchmark.reset(fBenchmarkStream->next());
+ if (!fBenchmark) {
+ return false;
+ }
+
+ // clear both buffers
+ fOwner->clear(canvas, SK_ColorWHITE, 2);
+
+ fBenchmark->preDraw();
+
+ return true;
+}
+
+void VisualInteractiveModule::draw(SkCanvas* canvas) {
+ if (!this->advanceRecordIfNecessary(canvas)) {
+ SkDebugf("Exiting VisualBench successfully\n");
+ fOwner->closeWindow();
+ return;
+ }
+ this->renderFrame(canvas);
+ switch (fState) {
+ case kPreWarmLoopsPerCanvasPreDraw_State: {
+ this->perCanvasPreDraw(canvas, kPreWarmLoops_State);
+ break;
+ }
+ case kPreWarmLoops_State: {
+ this->preWarm(kTuneLoops_State);
+ break;
+ }
+ case kTuneLoops_State: {
+ this->tuneLoops(canvas);
+ break;
+ }
+ case kPreTiming_State: {
+ fBenchmark->perCanvasPreDraw(canvas);
+ fCurrentFrame = 0;
+ fTimer.start();
+ fState = kTiming_State;
+ // fall to next state
+ }
+ case kTiming_State: {
+ this->timing(canvas);
+ break;
+ }
+ case kAdvance_State: {
+ this->postDraw(canvas);
+ this->nextState(kPreWarmLoopsPerCanvasPreDraw_State);
+ break;
+ }
+ }
+}
+
+inline void VisualInteractiveModule::nextState(State nextState) {
+ fState = nextState;
+}
+
+void VisualInteractiveModule::perCanvasPreDraw(SkCanvas* canvas, State nextState) {
+ fBenchmark->perCanvasPreDraw(canvas);
+ fCurrentFrame = 0;
+ this->nextState(nextState);
+}
+
+void VisualInteractiveModule::preWarm(State nextState) {
+ if (fCurrentFrame >= kGpuFrameLag) {
+ // we currently time across all frames to make sure we capture all GPU work
+ this->nextState(nextState);
+ fCurrentFrame = 0;
+ fTimer.start();
+ } else {
+ fCurrentFrame++;
+ }
+}
+
+inline double VisualInteractiveModule::elapsed() {
+ fTimer.end();
+ return fTimer.fWall;
+}
+
+void VisualInteractiveModule::resetTimingState() {
+ fCurrentFrame = 0;
+ fTimer = WallTimer();
+ fOwner->reset();
+}
+
+void VisualInteractiveModule::scaleLoops(double elapsedMs) {
+ // Scale back the number of loops
+ fLoops = (int)ceil(fLoops * kLoopMs / elapsedMs);
+}
+
+inline void VisualInteractiveModule::tuneLoops(SkCanvas* canvas) {
+ if (1 << 30 == fLoops) {
+ // We're about to wrap. Something's wrong with the bench.
+ SkDebugf("InnerLoops wrapped\n");
+ fLoops = 0;
+ } else {
+ double elapsedMs = this->elapsed();
+ if (elapsedMs > kLoopMs) {
+ this->scaleLoops(elapsedMs);
+ fBenchmark->perCanvasPostDraw(canvas);
+ this->nextState(kPreTiming_State);
+ } else {
+ fLoops *= 2;
+ this->nextState(kPreWarmLoops_State);
+ }
+ this->resetTimingState();
+ }
+}
+
+void VisualInteractiveModule::recordMeasurement() {
+ double measurement = this->elapsed() / (kFrames * fLoops);
+ fMeasurements[fCurrentMeasurement++] = measurement;
+ fCurrentMeasurement &= (kMeasurementCount-1); // fast mod
+ SkASSERT(fCurrentMeasurement < kMeasurementCount);
+}
+
+void VisualInteractiveModule::postDraw(SkCanvas* canvas) {
+ fBenchmark->perCanvasPostDraw(canvas);
+ fBenchmark.reset(nullptr);
+ fLoops = 1;
+}
+
+inline void VisualInteractiveModule::timing(SkCanvas* canvas) {
+ if (fCurrentFrame >= kFrames) {
+ this->recordMeasurement();
+ fTimer.start();
+ fCurrentFrame = 0;
+ } else {
+ fCurrentFrame++;
+ }
+}
+
+bool VisualInteractiveModule::onHandleChar(SkUnichar c) {
+ if (' ' == c) {
+ this->nextState(kAdvance_State);
+ }
+
+ return true;
+}
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