bench/GameBench.cpp - platform/external/skia - Gitiles

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */

 #include "Benchmark.h"
 #include "SkCanvas.h"
 #include "SkPaint.h"
 #include "SkRandom.h"
 #include "SkShader.h"
 #include "SkString.h"

 // This bench simulates the calls Skia sees from various HTML5 canvas
 // game bench marks
 class GameBench : public Benchmark {
 public:
     enum Type {
         kScale_Type,
         kTranslate_Type,
         kRotate_Type
     };

     enum Clear {
         kFull_Clear,
         kPartial_Clear
     };

     GameBench(Type type, Clear clear,
               bool aligned = false, bool useAtlas = false,
               bool useDrawVertices = false)
         : fType(type)
         , fClear(clear)
         , fAligned(aligned)
         , fUseAtlas(useAtlas)
         , fUseDrawVertices(useDrawVertices)
         , fName("game")
         , fNumSaved(0)
         , fInitialized(false) {

         switch (fType) {
         case kScale_Type:
             fName.append("_scale");
             break;
         case kTranslate_Type:
             fName.append("_trans");
             break;
         case kRotate_Type:
             fName.append("_rot");
             break;
         };

         if (aligned) {
             fName.append("_aligned");
         }

         if (kPartial_Clear == clear) {
             fName.append("_partial");
         } else {
             fName.append("_full");
         }

         if (useAtlas) {
             fName.append("_atlas");
         }

         if (useDrawVertices) {
             fName.append("_drawVerts");
         }

         // It's HTML 5 canvas, so always AA
         fName.append("_aa");
     }

 protected:
     const char* onGetName() override {
         return fName.c_str();
     }

     void onDelayedSetup() override {
         if (!fInitialized) {
             this->makeCheckerboard();
             this->makeAtlas();
             fInitialized = true;
         }
     }

     void onDraw(const int loops, SkCanvas* canvas) override {
         SkRandom scaleRand;
         SkRandom transRand;
         SkRandom rotRand;

         int width, height;
         if (fUseAtlas) {
             width = kAtlasCellWidth;
             height = kAtlasCellHeight;
         } else {
             width = kCheckerboardWidth;
             height = kCheckerboardHeight;
         }

         SkPaint clearPaint;
         clearPaint.setColor(0xFF000000);
         clearPaint.setAntiAlias(true);

         SkISize size = canvas->getDeviceSize();

         SkScalar maxTransX, maxTransY;

         if (kScale_Type == fType) {
             maxTransX = size.fWidth  - (1.5f * width);
             maxTransY = size.fHeight - (1.5f * height);
         } else if (kTranslate_Type == fType) {
             maxTransX = SkIntToScalar(size.fWidth  - width);
             maxTransY = SkIntToScalar(size.fHeight - height);
         } else {
             SkASSERT(kRotate_Type == fType);
             // Yes, some rotations will be off the top and left sides
             maxTransX = size.fWidth  - SK_ScalarSqrt2 * height;
             maxTransY = size.fHeight - SK_ScalarSqrt2 * height;
         }

         SkMatrix mat;
         SkRect dst = { 0, 0, SkIntToScalar(width), SkIntToScalar(height) };
         SkRect clearRect = { -1.0f, -1.0f, width+1.0f, height+1.0f };
         SkPoint verts[4] = { // for drawVertices path
             { 0, 0 },
             { 0, SkIntToScalar(height) },
             { SkIntToScalar(width), SkIntToScalar(height) },
             { SkIntToScalar(width), 0 }
         };
         uint16_t indices[6] = { 0, 1, 2, 0, 2, 3 };

         SkPaint p;
         p.setColor(0xFF000000);
         p.setFilterQuality(kLow_SkFilterQuality);

         SkPaint p2;         // for drawVertices path
         p2.setColor(0xFF000000);
         p2.setFilterQuality(kLow_SkFilterQuality);
         p2.setShader(SkShader::CreateBitmapShader(fAtlas,
                                                   SkShader::kClamp_TileMode,
                                                   SkShader::kClamp_TileMode))->unref();

         for (int i = 0; i < loops; ++i, ++fNumSaved) {
             if (0 == i % kNumBeforeClear) {
                 if (kPartial_Clear == fClear) {
                     for (int j = 0; j < fNumSaved; ++j) {
                         canvas->setMatrix(SkMatrix::I());
                         mat.setTranslate(fSaved[j][0], fSaved[j][1]);

                         if (kScale_Type == fType) {
                             mat.preScale(fSaved[j][2], fSaved[j][2]);
                         } else if (kRotate_Type == fType) {
                             mat.preRotate(fSaved[j][2]);
                         }

                         canvas->concat(mat);
                         canvas->drawRect(clearRect, clearPaint);
                     }
                 } else {
                     canvas->clear(0xFF000000);
                 }

                 fNumSaved = 0;
             }

             SkASSERT(fNumSaved < kNumBeforeClear);

             canvas->setMatrix(SkMatrix::I());

             fSaved[fNumSaved][0] = transRand.nextRangeScalar(0.0f, maxTransX);
             fSaved[fNumSaved][1] = transRand.nextRangeScalar(0.0f, maxTransY);
             if (fAligned) {
                 // make the translations integer aligned
                 fSaved[fNumSaved][0] = SkScalarFloorToScalar(fSaved[fNumSaved][0]);
                 fSaved[fNumSaved][1] = SkScalarFloorToScalar(fSaved[fNumSaved][1]);
             }

             mat.setTranslate(fSaved[fNumSaved][0], fSaved[fNumSaved][1]);

             if (kScale_Type == fType) {
                 fSaved[fNumSaved][2] = scaleRand.nextRangeScalar(0.5f, 1.5f);
                 mat.preScale(fSaved[fNumSaved][2], fSaved[fNumSaved][2]);
             } else if (kRotate_Type == fType) {
                 fSaved[fNumSaved][2] = rotRand.nextRangeScalar(0.0f, 360.0f);
                 mat.preRotate(fSaved[fNumSaved][2]);
             }

             canvas->concat(mat);
             if (fUseAtlas) {
                 const int curCell = i % (kNumAtlasedX * kNumAtlasedY);
                 SkIRect src = fAtlasRects[curCell % (kNumAtlasedX)][curCell / (kNumAtlasedX)];

                 if (fUseDrawVertices) {
                     SkPoint uvs[4] = {
                         { SkIntToScalar(src.fLeft),  SkIntToScalar(src.fBottom) },
                         { SkIntToScalar(src.fLeft),  SkIntToScalar(src.fTop) },
                         { SkIntToScalar(src.fRight), SkIntToScalar(src.fTop) },
                         { SkIntToScalar(src.fRight), SkIntToScalar(src.fBottom) },
                     };
                     canvas->drawVertices(SkCanvas::kTriangles_VertexMode,
                                          4, verts, uvs, nullptr, nullptr,
                                          indices, 6, p2);
                 } else {
                     canvas->drawBitmapRect(fAtlas, src, dst, &p,
                                            SkCanvas::kFast_SrcRectConstraint);
                 }
             } else {
                 canvas->drawBitmapRect(fCheckerboard, dst, &p);
             }
         }
     }

 private:
     static const int kCheckerboardWidth = 64;
     static const int kCheckerboardHeight = 128;

     static const int kAtlasCellWidth = 48;
     static const int kAtlasCellHeight = 36;
     static const int kNumAtlasedX = 5;
     static const int kNumAtlasedY = 5;
     static const int kAtlasSpacer = 2;
     static const int kTotAtlasWidth  = kNumAtlasedX * kAtlasCellWidth +
                                        (kNumAtlasedX+1) * kAtlasSpacer;
     static const int kTotAtlasHeight = kNumAtlasedY * kAtlasCellHeight +
                                        (kNumAtlasedY+1) * kAtlasSpacer;
     static const int kNumBeforeClear = 100;

     Type     fType;
     Clear    fClear;
     bool     fAligned;
     bool     fUseAtlas;
     bool     fUseDrawVertices;
     SkString fName;
     int      fNumSaved; // num draws stored in 'fSaved'
     bool     fInitialized;

     // 0 & 1 are always x & y translate. 2 is either scale or rotate.
     SkScalar fSaved[kNumBeforeClear][3];

     SkBitmap fCheckerboard;
     SkBitmap fAtlas;
     SkIRect  fAtlasRects[kNumAtlasedX][kNumAtlasedY];

     // Note: the resulting checker board has transparency
     void makeCheckerboard() {
         static int kCheckSize = 16;

         fCheckerboard.allocN32Pixels(kCheckerboardWidth, kCheckerboardHeight);
         SkAutoLockPixels lock(fCheckerboard);
         for (int y = 0; y < kCheckerboardHeight; ++y) {
             int even = (y / kCheckSize) % 2;

             SkPMColor* scanline = fCheckerboard.getAddr32(0, y);

             for (int x = 0; x < kCheckerboardWidth; ++x) {
                 if (even == (x / kCheckSize) % 2) {
                     *scanline++ = 0xFFFF0000;
                 } else {
                     *scanline++ = 0x00000000;
                 }
             }
         }
     }

     // Note: the resulting atlas has transparency
     void makeAtlas() {
         SkRandom rand;

         SkColor colors[kNumAtlasedX][kNumAtlasedY];

         for (int y = 0; y < kNumAtlasedY; ++y) {
             for (int x = 0; x < kNumAtlasedX; ++x) {
                 colors[x][y] = rand.nextU() | 0xff000000;
                 fAtlasRects[x][y] = SkIRect::MakeXYWH(kAtlasSpacer + x * (kAtlasCellWidth + kAtlasSpacer),
                                                       kAtlasSpacer + y * (kAtlasCellHeight + kAtlasSpacer),
                                                       kAtlasCellWidth,
                                                       kAtlasCellHeight);
             }
         }

         fAtlas.allocN32Pixels(kTotAtlasWidth, kTotAtlasHeight);
         SkAutoLockPixels lock(fAtlas);

         for (int y = 0; y < kTotAtlasHeight; ++y) {
             int colorY = y / (kAtlasCellHeight + kAtlasSpacer);
             bool inColorY = (y % (kAtlasCellHeight + kAtlasSpacer)) >= kAtlasSpacer;

             SkPMColor* scanline = fAtlas.getAddr32(0, y);

             for (int x = 0; x < kTotAtlasWidth; ++x, ++scanline) {
                 int colorX = x / (kAtlasCellWidth + kAtlasSpacer);
                 bool inColorX = (x % (kAtlasCellWidth + kAtlasSpacer)) >= kAtlasSpacer;

                 if (inColorX && inColorY) {
                     SkASSERT(colorX < kNumAtlasedX && colorY < kNumAtlasedY);
                     *scanline = colors[colorX][colorY];
                 } else {
                     *scanline = 0x00000000;
                 }
             }
         }
     }

     typedef Benchmark INHERITED;
 };

 // Partial clear
 DEF_BENCH(return new GameBench(GameBench::kScale_Type, GameBench::kPartial_Clear);)
 DEF_BENCH(return new GameBench(GameBench::kTranslate_Type, GameBench::kPartial_Clear);)
 DEF_BENCH(return new GameBench(GameBench::kTranslate_Type, GameBench::kPartial_Clear, true);)
 DEF_BENCH(return new GameBench(GameBench::kRotate_Type, GameBench::kPartial_Clear);)

 // Full clear
 DEF_BENCH(return new GameBench(GameBench::kScale_Type, GameBench::kFull_Clear);)
 DEF_BENCH(return new GameBench(GameBench::kTranslate_Type, GameBench::kFull_Clear);)
 DEF_BENCH(return new GameBench(GameBench::kTranslate_Type, GameBench::kFull_Clear, true);)
 DEF_BENCH(return new GameBench(GameBench::kRotate_Type, GameBench::kFull_Clear);)

 // Atlased
 DEF_BENCH(return new GameBench(GameBench::kTranslate_Type, GameBench::kFull_Clear, false, true);)
 DEF_BENCH(return new GameBench(
                          GameBench::kTranslate_Type, GameBench::kFull_Clear, false, true, true);)
	/*
	* Copyright 2012 Google Inc.
	*
	* Use of this source code is governed by a BSD-style license that can be
	* found in the LICENSE file.
	*/

	#include "Benchmark.h"
	#include "SkCanvas.h"
	#include "SkPaint.h"
	#include "SkRandom.h"
	#include "SkShader.h"
	#include "SkString.h"

	// This bench simulates the calls Skia sees from various HTML5 canvas
	// game bench marks
	class GameBench : public Benchmark {
	public:
	enum Type {
	kScale_Type,
	kTranslate_Type,
	kRotate_Type
	};

	enum Clear {
	kFull_Clear,
	kPartial_Clear
	};

	GameBench(Type type, Clear clear,
	bool aligned = false, bool useAtlas = false,
	bool useDrawVertices = false)
	: fType(type)
	, fClear(clear)
	, fAligned(aligned)
	, fUseAtlas(useAtlas)
	, fUseDrawVertices(useDrawVertices)
	, fName("game")
	, fNumSaved(0)
	, fInitialized(false) {

	switch (fType) {
	case kScale_Type:
	fName.append("_scale");
	break;
	case kTranslate_Type:
	fName.append("_trans");
	break;
	case kRotate_Type:
	fName.append("_rot");
	break;
	};

	if (aligned) {
	fName.append("_aligned");
	}

	if (kPartial_Clear == clear) {
	fName.append("_partial");
	} else {
	fName.append("_full");
	}

	if (useAtlas) {
	fName.append("_atlas");
	}

	if (useDrawVertices) {
	fName.append("_drawVerts");
	}

	// It's HTML 5 canvas, so always AA
	fName.append("_aa");
	}

	protected:
	const char* onGetName() override {
	return fName.c_str();
	}

	void onDelayedSetup() override {
	if (!fInitialized) {
	this->makeCheckerboard();
	this->makeAtlas();
	fInitialized = true;
	}
	}

	void onDraw(const int loops, SkCanvas* canvas) override {
	SkRandom scaleRand;
	SkRandom transRand;
	SkRandom rotRand;

	int width, height;
	if (fUseAtlas) {
	width = kAtlasCellWidth;
	height = kAtlasCellHeight;
	} else {
	width = kCheckerboardWidth;
	height = kCheckerboardHeight;
	}

	SkPaint clearPaint;
	clearPaint.setColor(0xFF000000);
	clearPaint.setAntiAlias(true);

	SkISize size = canvas->getDeviceSize();

	SkScalar maxTransX, maxTransY;

	if (kScale_Type == fType) {
	maxTransX = size.fWidth - (1.5f * width);
	maxTransY = size.fHeight - (1.5f * height);
	} else if (kTranslate_Type == fType) {
	maxTransX = SkIntToScalar(size.fWidth - width);
	maxTransY = SkIntToScalar(size.fHeight - height);
	} else {
	SkASSERT(kRotate_Type == fType);
	// Yes, some rotations will be off the top and left sides
	maxTransX = size.fWidth - SK_ScalarSqrt2 * height;
	maxTransY = size.fHeight - SK_ScalarSqrt2 * height;
	}

	SkMatrix mat;
	SkRect dst = { 0, 0, SkIntToScalar(width), SkIntToScalar(height) };
	SkRect clearRect = { -1.0f, -1.0f, width+1.0f, height+1.0f };
	SkPoint verts[4] = { // for drawVertices path
	{ 0, 0 },
	{ 0, SkIntToScalar(height) },
	{ SkIntToScalar(width), SkIntToScalar(height) },
	{ SkIntToScalar(width), 0 }
	};
	uint16_t indices[6] = { 0, 1, 2, 0, 2, 3 };

	SkPaint p;
	p.setColor(0xFF000000);
	p.setFilterQuality(kLow_SkFilterQuality);

	SkPaint p2; // for drawVertices path
	p2.setColor(0xFF000000);
	p2.setFilterQuality(kLow_SkFilterQuality);
	p2.setShader(SkShader::CreateBitmapShader(fAtlas,
	SkShader::kClamp_TileMode,
	SkShader::kClamp_TileMode))->unref();

	for (int i = 0; i < loops; ++i, ++fNumSaved) {
	if (0 == i % kNumBeforeClear) {
	if (kPartial_Clear == fClear) {
	for (int j = 0; j < fNumSaved; ++j) {
	canvas->setMatrix(SkMatrix::I());
	mat.setTranslate(fSaved[j][0], fSaved[j][1]);

	if (kScale_Type == fType) {
	mat.preScale(fSaved[j][2], fSaved[j][2]);
	} else if (kRotate_Type == fType) {
	mat.preRotate(fSaved[j][2]);
	}

	canvas->concat(mat);
	canvas->drawRect(clearRect, clearPaint);
	}
	} else {
	canvas->clear(0xFF000000);
	}

	fNumSaved = 0;
	}

	SkASSERT(fNumSaved < kNumBeforeClear);

	canvas->setMatrix(SkMatrix::I());

	fSaved[fNumSaved][0] = transRand.nextRangeScalar(0.0f, maxTransX);
	fSaved[fNumSaved][1] = transRand.nextRangeScalar(0.0f, maxTransY);
	if (fAligned) {
	// make the translations integer aligned
	fSaved[fNumSaved][0] = SkScalarFloorToScalar(fSaved[fNumSaved][0]);
	fSaved[fNumSaved][1] = SkScalarFloorToScalar(fSaved[fNumSaved][1]);
	}

	mat.setTranslate(fSaved[fNumSaved][0], fSaved[fNumSaved][1]);

	if (kScale_Type == fType) {
	fSaved[fNumSaved][2] = scaleRand.nextRangeScalar(0.5f, 1.5f);
	mat.preScale(fSaved[fNumSaved][2], fSaved[fNumSaved][2]);
	} else if (kRotate_Type == fType) {
	fSaved[fNumSaved][2] = rotRand.nextRangeScalar(0.0f, 360.0f);
	mat.preRotate(fSaved[fNumSaved][2]);
	}

	canvas->concat(mat);
	if (fUseAtlas) {
	const int curCell = i % (kNumAtlasedX * kNumAtlasedY);
	SkIRect src = fAtlasRects[curCell % (kNumAtlasedX)][curCell / (kNumAtlasedX)];

	if (fUseDrawVertices) {
	SkPoint uvs[4] = {
	{ SkIntToScalar(src.fLeft), SkIntToScalar(src.fBottom) },
	{ SkIntToScalar(src.fLeft), SkIntToScalar(src.fTop) },
	{ SkIntToScalar(src.fRight), SkIntToScalar(src.fTop) },
	{ SkIntToScalar(src.fRight), SkIntToScalar(src.fBottom) },
	};
	canvas->drawVertices(SkCanvas::kTriangles_VertexMode,
	4, verts, uvs, nullptr, nullptr,
	indices, 6, p2);
	} else {
	canvas->drawBitmapRect(fAtlas, src, dst, &p,
	SkCanvas::kFast_SrcRectConstraint);
	}
	} else {
	canvas->drawBitmapRect(fCheckerboard, dst, &p);
	}
	}
	}

	private:
	static const int kCheckerboardWidth = 64;
	static const int kCheckerboardHeight = 128;

	static const int kAtlasCellWidth = 48;
	static const int kAtlasCellHeight = 36;
	static const int kNumAtlasedX = 5;
	static const int kNumAtlasedY = 5;
	static const int kAtlasSpacer = 2;
	static const int kTotAtlasWidth = kNumAtlasedX * kAtlasCellWidth +
	(kNumAtlasedX+1) * kAtlasSpacer;
	static const int kTotAtlasHeight = kNumAtlasedY * kAtlasCellHeight +
	(kNumAtlasedY+1) * kAtlasSpacer;
	static const int kNumBeforeClear = 100;

	Type fType;
	Clear fClear;
	bool fAligned;
	bool fUseAtlas;
	bool fUseDrawVertices;
	SkString fName;
	int fNumSaved; // num draws stored in 'fSaved'
	bool fInitialized;

	// 0 & 1 are always x & y translate. 2 is either scale or rotate.
	SkScalar fSaved[kNumBeforeClear][3];

	SkBitmap fCheckerboard;
	SkBitmap fAtlas;
	SkIRect fAtlasRects[kNumAtlasedX][kNumAtlasedY];

	// Note: the resulting checker board has transparency
	void makeCheckerboard() {
	static int kCheckSize = 16;

	fCheckerboard.allocN32Pixels(kCheckerboardWidth, kCheckerboardHeight);
	SkAutoLockPixels lock(fCheckerboard);
	for (int y = 0; y < kCheckerboardHeight; ++y) {
	int even = (y / kCheckSize) % 2;

	SkPMColor* scanline = fCheckerboard.getAddr32(0, y);

	for (int x = 0; x < kCheckerboardWidth; ++x) {
	if (even == (x / kCheckSize) % 2) {
	*scanline++ = 0xFFFF0000;
	} else {
	*scanline++ = 0x00000000;
	}
	}
	}
	}

	// Note: the resulting atlas has transparency
	void makeAtlas() {
	SkRandom rand;

	SkColor colors[kNumAtlasedX][kNumAtlasedY];

	for (int y = 0; y < kNumAtlasedY; ++y) {
	for (int x = 0; x < kNumAtlasedX; ++x) {
	colors[x][y] = rand.nextU() \| 0xff000000;
	fAtlasRects[x][y] = SkIRect::MakeXYWH(kAtlasSpacer + x * (kAtlasCellWidth + kAtlasSpacer),
	kAtlasSpacer + y * (kAtlasCellHeight + kAtlasSpacer),
	kAtlasCellWidth,
	kAtlasCellHeight);
	}
	}

	fAtlas.allocN32Pixels(kTotAtlasWidth, kTotAtlasHeight);
	SkAutoLockPixels lock(fAtlas);

	for (int y = 0; y < kTotAtlasHeight; ++y) {
	int colorY = y / (kAtlasCellHeight + kAtlasSpacer);
	bool inColorY = (y % (kAtlasCellHeight + kAtlasSpacer)) >= kAtlasSpacer;

	SkPMColor* scanline = fAtlas.getAddr32(0, y);

	for (int x = 0; x < kTotAtlasWidth; ++x, ++scanline) {
	int colorX = x / (kAtlasCellWidth + kAtlasSpacer);
	bool inColorX = (x % (kAtlasCellWidth + kAtlasSpacer)) >= kAtlasSpacer;

	if (inColorX && inColorY) {
	SkASSERT(colorX < kNumAtlasedX && colorY < kNumAtlasedY);
	*scanline = colors[colorX][colorY];
	} else {
	*scanline = 0x00000000;
	}
	}
	}
	}

	typedef Benchmark INHERITED;
	};

	// Partial clear
	DEF_BENCH(return new GameBench(GameBench::kScale_Type, GameBench::kPartial_Clear);)
	DEF_BENCH(return new GameBench(GameBench::kTranslate_Type, GameBench::kPartial_Clear);)
	DEF_BENCH(return new GameBench(GameBench::kTranslate_Type, GameBench::kPartial_Clear, true);)
	DEF_BENCH(return new GameBench(GameBench::kRotate_Type, GameBench::kPartial_Clear);)

	// Full clear
	DEF_BENCH(return new GameBench(GameBench::kScale_Type, GameBench::kFull_Clear);)
	DEF_BENCH(return new GameBench(GameBench::kTranslate_Type, GameBench::kFull_Clear);)
	DEF_BENCH(return new GameBench(GameBench::kTranslate_Type, GameBench::kFull_Clear, true);)
	DEF_BENCH(return new GameBench(GameBench::kRotate_Type, GameBench::kFull_Clear);)

	// Atlased
	DEF_BENCH(return new GameBench(GameBench::kTranslate_Type, GameBench::kFull_Clear, false, true);)
	DEF_BENCH(return new GameBench(
	GameBench::kTranslate_Type, GameBench::kFull_Clear, false, true, true);)