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| 1 /* |
| 2 * Copyright 2014 Google Inc. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. |
| 6 */ |
| 7 #include "Benchmark.h" |
| 8 #include "SkCanvas.h" |
| 9 #include "SkColorCubeFilter.h" |
| 10 #include "SkGradientShader.h" |
| 11 |
| 12 class ColorCubeBench : public Benchmark { |
| 13 SkISize fSize; |
| 14 int fCubeDimension; |
| 15 SkData* fCubeData; |
| 16 SkBitmap fBitmap; |
| 17 |
| 18 public: |
| 19 ColorCubeBench() |
| 20 : fCubeDimension(0) |
| 21 , fCubeData(NULL) { |
| 22 fSize = SkISize::Make(2880, 1800); // 2014 Macbook Pro resolution |
| 23 } |
| 24 |
| 25 ~ColorCubeBench() { |
| 26 SkSafeUnref(fCubeData); |
| 27 } |
| 28 |
| 29 protected: |
| 30 virtual const char* onGetName() SK_OVERRIDE { |
| 31 return "colorcube"; |
| 32 } |
| 33 |
| 34 virtual void onPreDraw() SK_OVERRIDE { |
| 35 if (!SkToBool(fCubeData)) { |
| 36 this->makeCubeData(); |
| 37 this->make_bitmap(); |
| 38 } |
| 39 } |
| 40 |
| 41 virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE { |
| 42 this->test(loops, canvas); |
| 43 } |
| 44 |
| 45 virtual SkIPoint onGetSize() SK_OVERRIDE { |
| 46 return SkIPoint::Make(fSize.width(), fSize.height()); |
| 47 } |
| 48 |
| 49 private: |
| 50 static SkShader* MakeLinear(const SkISize& size) { |
| 51 const SkPoint pts[2] = { |
| 52 { 0, 0 }, |
| 53 { SkIntToScalar(size.width()), SkIntToScalar(size.height()) } |
| 54 }; |
| 55 static const SkColor colors[] = { SK_ColorYELLOW, SK_ColorBLUE }; |
| 56 return SkGradientShader::CreateLinear( |
| 57 pts, colors, NULL, 2, SkShader::kRepeat_TileMode, 0, &SkMatrix::I())
; |
| 58 } |
| 59 |
| 60 void make_bitmap() { |
| 61 fBitmap.allocN32Pixels(fSize.width(), fSize.height()); |
| 62 SkCanvas canvas(fBitmap); |
| 63 canvas.clear(0x00000000); |
| 64 SkPaint paint; |
| 65 paint.setAntiAlias(true); |
| 66 SkShader* shader = MakeLinear(fSize); |
| 67 paint.setShader(shader); |
| 68 SkRect r = { 0, 0, SkIntToScalar(fSize.width()), SkIntToScalar(fSize.hei
ght()) }; |
| 69 canvas.drawRect(r, paint); |
| 70 shader->unref(); |
| 71 } |
| 72 |
| 73 void makeCubeData() { |
| 74 fCubeDimension = 32; |
| 75 fCubeData = SkData::NewUninitialized(sizeof(SkColor) * |
| 76 fCubeDimension * fCubeDimension * fCubeDimension); |
| 77 SkColor* pixels = (SkColor*)(fCubeData->writable_data()); |
| 78 SkAutoMalloc lutMemory(fCubeDimension); |
| 79 uint8_t* lut = (uint8_t*)lutMemory.get(); |
| 80 const int maxIndex = fCubeDimension - 1; |
| 81 for (int i = 0; i < fCubeDimension; ++i) { |
| 82 // Make an invert lut, but the content of |
| 83 // the lut shouldn't affect performance. |
| 84 lut[i] = ((maxIndex - i) * 255) / maxIndex; |
| 85 } |
| 86 for (int r = 0; r < fCubeDimension; ++r) { |
| 87 for (int g = 0; g < fCubeDimension; ++g) { |
| 88 for (int b = 0; b < fCubeDimension; ++b) { |
| 89 pixels[(fCubeDimension * ((fCubeDimension * b) + g)) + r] = |
| 90 SkColorSetARGB(0xFF, lut[r], lut[g], lut[b]); |
| 91 } |
| 92 } |
| 93 } |
| 94 } |
| 95 |
| 96 void test(const int loops, SkCanvas* canvas) { |
| 97 SkAutoTUnref<SkColorFilter> colorCube( |
| 98 SkColorCubeFilter::Create(fCubeData, fCubeDimension)); |
| 99 SkPaint paint; |
| 100 paint.setColorFilter(colorCube); |
| 101 |
| 102 for (int i = 0; i < loops; i++) { |
| 103 canvas->drawBitmap(fBitmap, 0, 0, &paint); |
| 104 } |
| 105 } |
| 106 |
| 107 typedef Benchmark INHERITED; |
| 108 }; |
| 109 |
| 110 /////////////////////////////////////////////////////////////////////////////// |
| 111 |
| 112 DEF_BENCH( return new ColorCubeBench(); ) |
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