| /* |
| * 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 "SkColorCubeFilter.h" |
| #include "SkGradientShader.h" |
| |
| class ColorCubeBench : public Benchmark { |
| SkISize fSize; |
| int fCubeDimension; |
| SkData* fCubeData; |
| SkBitmap fBitmap; |
| |
| public: |
| ColorCubeBench() |
| : fCubeDimension(0) |
| , fCubeData(nullptr) { |
| fSize = SkISize::Make(2880, 1800); // 2014 Macbook Pro resolution |
| } |
| |
| ~ColorCubeBench() { |
| SkSafeUnref(fCubeData); |
| } |
| |
| protected: |
| const char* onGetName() override { |
| return "colorcube"; |
| } |
| |
| void onDelayedSetup() override { |
| if (!SkToBool(fCubeData)) { |
| this->makeCubeData(); |
| this->make_bitmap(); |
| } |
| } |
| |
| void onDraw(int loops, SkCanvas* canvas) override { |
| this->test(loops, canvas); |
| } |
| |
| SkIPoint onGetSize() override { |
| return SkIPoint::Make(fSize.width(), fSize.height()); |
| } |
| |
| private: |
| static SkShader* MakeLinear(const SkISize& size) { |
| const SkPoint pts[2] = { |
| { 0, 0 }, |
| { SkIntToScalar(size.width()), SkIntToScalar(size.height()) } |
| }; |
| static const SkColor colors[] = { SK_ColorYELLOW, SK_ColorBLUE }; |
| return SkGradientShader::CreateLinear( |
| pts, colors, nullptr, 2, SkShader::kRepeat_TileMode, 0, &SkMatrix::I()); |
| } |
| |
| void make_bitmap() { |
| fBitmap.allocN32Pixels(fSize.width(), fSize.height()); |
| SkCanvas canvas(fBitmap); |
| canvas.clear(0x00000000); |
| SkPaint paint; |
| paint.setAntiAlias(true); |
| SkShader* shader = MakeLinear(fSize); |
| paint.setShader(shader); |
| SkRect r = { 0, 0, SkIntToScalar(fSize.width()), SkIntToScalar(fSize.height()) }; |
| canvas.drawRect(r, paint); |
| shader->unref(); |
| } |
| |
| void makeCubeData() { |
| fCubeDimension = 32; |
| fCubeData = SkData::NewUninitialized(sizeof(SkColor) * |
| fCubeDimension * fCubeDimension * fCubeDimension); |
| SkColor* pixels = (SkColor*)(fCubeData->writable_data()); |
| SkAutoMalloc lutMemory(fCubeDimension); |
| uint8_t* lut = (uint8_t*)lutMemory.get(); |
| const int maxIndex = fCubeDimension - 1; |
| for (int i = 0; i < fCubeDimension; ++i) { |
| // Make an invert lut, but the content of |
| // the lut shouldn't affect performance. |
| lut[i] = ((maxIndex - i) * 255) / maxIndex; |
| } |
| for (int r = 0; r < fCubeDimension; ++r) { |
| for (int g = 0; g < fCubeDimension; ++g) { |
| for (int b = 0; b < fCubeDimension; ++b) { |
| pixels[(fCubeDimension * ((fCubeDimension * b) + g)) + r] = |
| SkColorSetARGB(0xFF, lut[r], lut[g], lut[b]); |
| } |
| } |
| } |
| } |
| |
| void test(int loops, SkCanvas* canvas) { |
| SkPaint paint; |
| for (int i = 0; i < loops; i++) { |
| SkAutoTUnref<SkColorFilter> colorCube( |
| SkColorCubeFilter::Create(fCubeData, fCubeDimension)); |
| paint.setColorFilter(colorCube); |
| canvas->drawBitmap(fBitmap, 0, 0, &paint); |
| } |
| } |
| |
| typedef Benchmark INHERITED; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_BENCH( return new ColorCubeBench(); ) |