bsalomon@google.com | aade2e1 | 2013-08-02 14:39:25 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2013 Google Inc. |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
| 8 | |
| 9 | #include "SkBenchmark.h" |
| 10 | #include "SkCanvas.h" |
| 11 | #include "SkPaint.h" |
| 12 | #include "SkRandom.h" |
| 13 | |
| 14 | /** |
| 15 | * Draws full screen opaque rectangles. It is designed to test any optimizations in the GPU backend |
| 16 | * to turn such draws into clears. |
| 17 | */ |
| 18 | class FSRectBench : public SkBenchmark { |
| 19 | public: |
| 20 | FSRectBench(void* param) |
| 21 | : INHERITED(param) |
| 22 | , fInit(false) { |
| 23 | } |
| 24 | |
| 25 | protected: |
| 26 | virtual const char* onGetName() SK_OVERRIDE { return "fullscreen_rects"; } |
| 27 | |
| 28 | virtual void onPreDraw() SK_OVERRIDE { |
| 29 | if (!fInit) { |
| 30 | SkMWCRandom rand; |
| 31 | static const SkScalar kMinOffset = 0; |
| 32 | static const SkScalar kMaxOffset = 100 * SK_Scalar1; |
| 33 | static const SkScalar kOffsetRange = kMaxOffset - kMinOffset; |
| 34 | for (int i = 0; i < N; ++i) { |
| 35 | fRects[i].fLeft = -kMinOffset - SkScalarMul(rand.nextUScalar1(), kOffsetRange); |
| 36 | fRects[i].fTop = -kMinOffset - SkScalarMul(rand.nextUScalar1(), kOffsetRange); |
| 37 | fRects[i].fRight = W + kMinOffset + SkScalarMul(rand.nextUScalar1(), kOffsetRange); |
| 38 | fRects[i].fBottom = H + kMinOffset + SkScalarMul(rand.nextUScalar1(), kOffsetRange); |
| 39 | fColors[i] = rand.nextU() | 0xFF000000; |
| 40 | } |
| 41 | fInit = true; |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { |
| 46 | SkPaint paint; |
| 47 | for (int i = 0; i < N; ++i) { |
| 48 | paint.setColor(fColors[i]); |
| 49 | canvas->drawRect(fRects[i], paint); |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | private: |
| 54 | enum { |
| 55 | W = 640, |
| 56 | H = 480, |
| 57 | N = SkBENCHLOOP(300) |
| 58 | }; |
| 59 | SkRect fRects[N]; |
| 60 | SkColor fColors[N]; |
| 61 | bool fInit; |
| 62 | |
| 63 | typedef SkBenchmark INHERITED; |
| 64 | }; |
| 65 | |
| 66 | DEF_BENCH( return SkNEW_ARGS(FSRectBench, (p)); ) |