зеркало из https://github.com/mozilla/moz-skia.git
Added game-like bench marks
https://codereview.chromium.org/14772019/ git-svn-id: http://skia.googlecode.com/svn/trunk@9078 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
robertphillips@google.com
Родитель
ee2c3b9fb3
Коммит
6670ab9e63
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/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkBenchmark.h"
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#include "SkCanvas.h"
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#include "SkPaint.h"
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#include "SkRandom.h"
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#include "SkString.h"
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// This bench simulates the calls Skia sees from various HTML5 canvas
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// game bench marks
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class GameBench : public SkBenchmark {
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public:
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enum Type {
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kScale_Type,
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kTranslate_Type,
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kRotate_Type
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};
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GameBench(void* param, Type type, bool partialClear)
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: INHERITED(param)
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, fType(type)
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, fPartialClear(partialClear)
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, fName("game")
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, fNumSaved(0)
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, fInitialized(false) {
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switch (fType) {
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case kScale_Type:
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fName.append("_scale");
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break;
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case kTranslate_Type:
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fName.append("_trans");
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break;
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case kRotate_Type:
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fName.append("_rot");
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break;
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};
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if (partialClear) {
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fName.append("_partial");
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} else {
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fName.append("_full");
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}
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// It's HTML 5 canvas, so always AA
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fName.append("_aa");
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}
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protected:
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virtual const char* onGetName() SK_OVERRIDE {
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return fName.c_str();;
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}
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virtual void onPreDraw() SK_OVERRIDE {
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if (!fInitialized) {
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this->makeCheckerboard();
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fInitialized = true;
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}
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}
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virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
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static SkMWCRandom scaleRand;
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static SkMWCRandom transRand;
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static SkMWCRandom rotRand;
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SkPaint clearPaint;
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clearPaint.setColor(0xFF000000);
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clearPaint.setAntiAlias(true);
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SkISize size = canvas->getDeviceSize();
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SkScalar maxTransX, maxTransY;
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if (kScale_Type == fType) {
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maxTransX = size.fWidth - (1.5f * kCheckerboardWidth);
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maxTransY = size.fHeight - (1.5f * kCheckerboardHeight);
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} else if (kTranslate_Type == fType) {
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maxTransX = SkIntToScalar(size.fWidth - kCheckerboardWidth);
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maxTransY = SkIntToScalar(size.fHeight - kCheckerboardHeight);
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} else {
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SkASSERT(kRotate_Type == fType);
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// Yes, some rotations will be off the top and left sides
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maxTransX = size.fWidth - SK_ScalarSqrt2 * kCheckerboardHeight;
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maxTransY = size.fHeight - SK_ScalarSqrt2 * kCheckerboardHeight;
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}
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SkMatrix mat;
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SkIRect src = { 0, 0, kCheckerboardWidth, kCheckerboardHeight };
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SkRect dst = { 0, 0, kCheckerboardWidth, kCheckerboardHeight };
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SkRect clearRect = { -1.0f, -1.0f,
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kCheckerboardWidth+1.0f, kCheckerboardHeight+1.0f };
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SkPaint p;
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p.setColor(0xFF000000);
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p.setFilterBitmap(true);
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for (int i = 0; i < kNumRects; ++i, ++fNumSaved) {
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if (0 == i % kNumBeforeClear) {
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if (fPartialClear) {
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for (int j = 0; j < fNumSaved; ++j) {
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canvas->setMatrix(SkMatrix::I());
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mat.setTranslate(fSaved[j][0], fSaved[j][1]);
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if (kScale_Type == fType) {
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mat.preScale(fSaved[j][2], fSaved[j][2]);
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} else if (kRotate_Type == fType) {
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mat.preRotate(fSaved[j][2]);
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}
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canvas->concat(mat);
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canvas->drawRect(clearRect, clearPaint);
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}
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} else {
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canvas->clear(0xFF000000);
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}
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fNumSaved = 0;
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}
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SkASSERT(fNumSaved < kNumBeforeClear);
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canvas->setMatrix(SkMatrix::I());
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fSaved[fNumSaved][0] = transRand.nextRangeScalar(0.0f, maxTransX);
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fSaved[fNumSaved][1] = transRand.nextRangeScalar(0.0f, maxTransY);
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mat.setTranslate(fSaved[fNumSaved][0], fSaved[fNumSaved][1]);
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if (kScale_Type == fType) {
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fSaved[fNumSaved][2] = scaleRand.nextRangeScalar(0.5f, 1.5f);
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mat.preScale(fSaved[fNumSaved][2], fSaved[fNumSaved][2]);
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} else if (kRotate_Type == fType) {
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fSaved[fNumSaved][2] = rotRand.nextRangeScalar(0.0f, 360.0f);
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mat.preRotate(fSaved[fNumSaved][2]);
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}
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canvas->concat(mat);
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canvas->drawBitmapRect(fCheckerboard, &src, dst, &p);
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}
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}
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private:
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static const int kCheckerboardWidth = 64;
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static const int kCheckerboardHeight = 128;
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#ifdef SK_DEBUG
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static const int kNumRects = 100;
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static const int kNumBeforeClear = 10;
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#else
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static const int kNumRects = 5000;
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static const int kNumBeforeClear = 300;
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#endif
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Type fType;
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bool fPartialClear;
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SkString fName;
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int fNumSaved; // num draws stored in 'fSaved'
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bool fInitialized;
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// 0 & 1 are always x & y translate. 2 is either scale or rotate.
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SkScalar fSaved[kNumBeforeClear][3];
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SkBitmap fCheckerboard;
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// Note: the resulting checker board has transparency
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void makeCheckerboard() {
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static unsigned int kCheckSize = 16;
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fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config,
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kCheckerboardWidth, kCheckerboardHeight);
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fCheckerboard.allocPixels();
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SkAutoLockPixels lock(fCheckerboard);
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for (unsigned int y = 0; y < kCheckerboardHeight; ++y) {
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int even = (y / kCheckSize) % 2;
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SkPMColor* scanline = fCheckerboard.getAddr32(0, y);
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for (unsigned int x = 0; x < kCheckerboardWidth; ++x) {
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if (even == (x / kCheckSize) % 2) {
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*scanline++ = 0xFFFF0000;
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} else {
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*scanline++ = 0x00000000;
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}
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}
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}
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}
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typedef SkBenchmark INHERITED;
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};
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// Partial clear
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DEF_BENCH( return SkNEW_ARGS(GameBench, (p, GameBench::kScale_Type, false)); )
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DEF_BENCH( return SkNEW_ARGS(GameBench, (p, GameBench::kTranslate_Type, false)); )
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DEF_BENCH( return SkNEW_ARGS(GameBench, (p, GameBench::kRotate_Type, false)); )
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// Full clear
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DEF_BENCH( return SkNEW_ARGS(GameBench, (p, GameBench::kScale_Type, true)); )
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DEF_BENCH( return SkNEW_ARGS(GameBench, (p, GameBench::kTranslate_Type, true)); )
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DEF_BENCH( return SkNEW_ARGS(GameBench, (p, GameBench::kRotate_Type, true)); )
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@ -24,6 +24,7 @@
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'../bench/DeferredSurfaceCopyBench.cpp',
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'../bench/DisplacementBench.cpp',
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'../bench/FontScalerBench.cpp',
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'../bench/GameBench.cpp',
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'../bench/GradientBench.cpp',
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'../bench/GrMemoryPoolBench.cpp',
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'../bench/InterpBench.cpp',
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