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Diffstat (limited to 'bench/AlternatingColorPatternBench.cpp')
-rw-r--r-- | bench/AlternatingColorPatternBench.cpp | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/bench/AlternatingColorPatternBench.cpp b/bench/AlternatingColorPatternBench.cpp new file mode 100644 index 0000000000..b497979a89 --- /dev/null +++ b/bench/AlternatingColorPatternBench.cpp @@ -0,0 +1,200 @@ +/* + * 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 "Benchmark.h" +#include "SkCanvas.h" +#include "SkGradientShader.h" +#include "SkPaint.h" +#include "SkString.h" + +enum ColorPattern { + kWhite_ColorPattern, + kBlue_ColorPattern, + kOpaqueBitmap_ColorPattern, + kAlphaBitmap_ColorPattern, +}; + +static const struct ColorPatternData{ + SkColor fColor; + bool fIsBitmap; + const char* fName; +} gColorPatterns[] = { + // Keep this in same order as ColorPattern enum + { SK_ColorWHITE, false, "white" }, // kWhite_ColorPattern + { SK_ColorBLUE, false, "blue" }, // kBlue_ColorPattern + { SK_ColorWHITE, true, "obaqueBitMap" }, // kOpaqueBitmap_ColorPattern + { 0x10000000, true, "alphaBitmap" }, // kAlphaBitmap_ColorPattern +}; + +enum DrawType { + kRect_DrawType, + kPath_DrawType, +}; + +static void makebm(SkBitmap* bm, int w, int h) { + bm->allocN32Pixels(w, h); + bm->eraseColor(SK_ColorTRANSPARENT); + + SkCanvas canvas(*bm); + SkScalar s = SkIntToScalar(SkMin32(w, h)); + static const SkPoint kPts0[] = { { 0, 0 }, { s, s } }; + static const SkPoint kPts1[] = { { s/2, 0 }, { s/2, s } }; + static const SkScalar kPos[] = { 0, SK_Scalar1/2, SK_Scalar1 }; + static const SkColor kColors0[] = {0x80F00080, 0xF0F08000, 0x800080F0 }; + static const SkColor kColors1[] = {0xF08000F0, 0x8080F000, 0xF000F080 }; + + + SkPaint paint; + + paint.setShader(SkGradientShader::CreateLinear(kPts0, kColors0, kPos, + SK_ARRAY_COUNT(kColors0), SkShader::kClamp_TileMode))->unref(); + canvas.drawPaint(paint); + paint.setShader(SkGradientShader::CreateLinear(kPts1, kColors1, kPos, + SK_ARRAY_COUNT(kColors1), SkShader::kClamp_TileMode))->unref(); + canvas.drawPaint(paint); +} + +/** + * This bench draws a grid of either rects or filled paths, with two alternating color patterns. + * This color patterns are passed in as enums to the class. The options are: + * 1) solid white color + * 2) solid blue color + * 3) opaque bitmap + * 4) partial alpha bitmap + * The same color pattern can be set for both arguments to create a uniform pattern on all draws. + * + * The bench is used to test a few things. First it can test any optimizations made for a specific + * color pattern (for example drawing an opaque bitmap versus one with partial alpha). Also it can + * be used to test the cost of program switching and/or batching when alternating between different + * patterns when on the gpu. + */ +class AlternatingColorPatternBench : public Benchmark { +public: + enum { + NX = 5, + NY = 5, + NUM_DRAWS = NX * NY, + }; + SkShader* fBmShader; + + SkPath fPaths[NUM_DRAWS]; + SkRect fRects[NUM_DRAWS]; + SkColor fColors[NUM_DRAWS]; + SkShader* fShaders[NUM_DRAWS]; + + SkString fName; + ColorPatternData fPattern1; + ColorPatternData fPattern2; + DrawType fDrawType; + SkBitmap fBmp; + + + AlternatingColorPatternBench(ColorPattern pattern1, ColorPattern pattern2, DrawType drawType) + : fBmShader(NULL) { + fPattern1 = gColorPatterns[pattern1]; + fPattern2 = gColorPatterns[pattern2]; + fName.printf("colorPattern_%s_%s_%s", + fPattern1.fName, fPattern2.fName, + kRect_DrawType == drawType ? "rect" : "path"); + fDrawType = drawType; + } + + virtual ~AlternatingColorPatternBench() { + SkSafeUnref(fBmShader); + } + +protected: + virtual const char* onGetName() SK_OVERRIDE { + return fName.c_str(); + } + + virtual void onPreDraw() { + int w = 40; + int h = 40; + makebm(&fBmp, w, h); + fBmShader = SkShader::CreateBitmapShader(fBmp, + SkShader::kRepeat_TileMode, + SkShader::kRepeat_TileMode); + int offset = 2; + int count = 0; + for (int j = 0; j < NY; ++j) { + for (int i = 0; i < NX; ++i) { + int x = (w + offset) * i; + int y = (h * offset) * j; + if (kRect_DrawType == fDrawType) { + fRects[count].set(SkIntToScalar(x), SkIntToScalar(y), + SkIntToScalar(x + w), SkIntToScalar(y + h)); + } else { + fPaths[count].moveTo(SkIntToScalar(x), SkIntToScalar(y)); + fPaths[count].rLineTo(SkIntToScalar(w), 0); + fPaths[count].rLineTo(0, SkIntToScalar(h)); + fPaths[count].rLineTo(SkIntToScalar(-w + 1), 0); + } + if (0 == count % 2) { + fColors[count] = fPattern1.fColor; + fShaders[count] = fPattern1.fIsBitmap ? fBmShader : NULL; + } else { + fColors[count] = fPattern2.fColor; + fShaders[count] = fPattern2.fIsBitmap ? fBmShader : NULL; + } + ++count; + } + } + } + + virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE { + SkPaint paint; + paint.setAntiAlias(false); + paint.setFilterLevel(SkPaint::kLow_FilterLevel); + + for (int i = 0; i < loops; ++i) { + for (int j = 0; j < NUM_DRAWS; ++j) { + paint.setColor(fColors[j]); + paint.setShader(fShaders[j]); + if (kRect_DrawType == fDrawType) { + canvas->drawRect(fRects[j], paint); + } else { + canvas->drawPath(fPaths[j], paint); + } + } + } + } + +private: + typedef Benchmark INHERITED; +}; + +DEF_BENCH( return SkNEW_ARGS(AlternatingColorPatternBench, + (kWhite_ColorPattern, kWhite_ColorPattern, + kPath_DrawType)); ) +DEF_BENCH( return SkNEW_ARGS(AlternatingColorPatternBench, + (kBlue_ColorPattern, kBlue_ColorPattern, + kPath_DrawType)); ) +DEF_BENCH( return SkNEW_ARGS(AlternatingColorPatternBench, + (kWhite_ColorPattern, kBlue_ColorPattern, + kPath_DrawType)); ) + +DEF_BENCH( return SkNEW_ARGS(AlternatingColorPatternBench, + (kOpaqueBitmap_ColorPattern, kOpaqueBitmap_ColorPattern, + kPath_DrawType)); ) +DEF_BENCH( return SkNEW_ARGS(AlternatingColorPatternBench, + (kAlphaBitmap_ColorPattern, kAlphaBitmap_ColorPattern, + kPath_DrawType)); ) +DEF_BENCH( return SkNEW_ARGS(AlternatingColorPatternBench, + (kOpaqueBitmap_ColorPattern, kAlphaBitmap_ColorPattern, + kPath_DrawType)); ) + +DEF_BENCH( return SkNEW_ARGS(AlternatingColorPatternBench, + (kOpaqueBitmap_ColorPattern, kOpaqueBitmap_ColorPattern, + kRect_DrawType)); ) +DEF_BENCH( return SkNEW_ARGS(AlternatingColorPatternBench, + (kAlphaBitmap_ColorPattern, kAlphaBitmap_ColorPattern, + kRect_DrawType)); ) +DEF_BENCH( return SkNEW_ARGS(AlternatingColorPatternBench, + (kOpaqueBitmap_ColorPattern, kAlphaBitmap_ColorPattern, + kRect_DrawType)); ) + |