| /* |
| * Copyright 2015 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 "SkMatrix.h" |
| #include "SkPaint.h" |
| #include "SkString.h" |
| |
| /** |
| * This bench measures the rendering time of SkCanvas::drawBitmap with different anti-aliasing / |
| * matrix combinations. |
| */ |
| |
| class DrawBitmapAABench : public Benchmark { |
| public: |
| DrawBitmapAABench(bool doAA, const SkMatrix& matrix, const char name[]) |
| : fMatrix(matrix) |
| , fName("draw_bitmap_") { |
| |
| fPaint.setAntiAlias(doAA); |
| fName.appendf("%s_%s", doAA ? "aa" : "noaa", name); |
| } |
| |
| protected: |
| const char* onGetName() override { |
| return fName.c_str(); |
| } |
| |
| void onPreDraw() override { |
| fBitmap.allocN32Pixels(200, 200); |
| fBitmap.eraseARGB(255, 0, 255, 0); |
| } |
| |
| void onDraw(const int loops, SkCanvas* canvas) override { |
| canvas->concat(fMatrix); |
| for (int i = 0; i < loops; i++) { |
| canvas->drawBitmap(fBitmap, 0, 0, &fPaint); |
| } |
| } |
| |
| private: |
| SkPaint fPaint; |
| SkMatrix fMatrix; |
| SkString fName; |
| SkBitmap fBitmap; |
| |
| typedef Benchmark INHERITED; |
| }; |
| |
| DEF_BENCH( return new DrawBitmapAABench(false, SkMatrix::MakeScale(1), "ident"); ) |
| |
| DEF_BENCH( return new DrawBitmapAABench(false, SkMatrix::MakeScale(1.17f), "scale"); ) |
| |
| DEF_BENCH( return new DrawBitmapAABench(false, SkMatrix::MakeTrans(17.5f, 17.5f), "translate"); ) |
| |
| DEF_BENCH( |
| SkMatrix m; |
| m.reset(); |
| m.preRotate(15); |
| return new DrawBitmapAABench(false, m, "rotate"); |
| ) |
| |
| DEF_BENCH( return new DrawBitmapAABench(true, SkMatrix::MakeScale(1), "ident"); ) |
| |
| DEF_BENCH( return new DrawBitmapAABench(true, SkMatrix::MakeScale(1.17f), "scale"); ) |
| |
| DEF_BENCH( return new DrawBitmapAABench(true, SkMatrix::MakeTrans(17.5f, 17.5f), "translate"); ) |
| |
| DEF_BENCH( |
| SkMatrix m; |
| m.reset(); |
| m.preRotate(15); |
| return new DrawBitmapAABench(true, m, "rotate"); |
| ) |