| |
| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkBenchmark.h" |
| #include "SkCanvas.h" |
| #include "SkPaint.h" |
| #include "SkRandom.h" |
| |
| /** |
| * Draws full screen opaque rectangles. It is designed to test any optimizations in the GPU backend |
| * to turn such draws into clears. |
| */ |
| class FSRectBench : public SkBenchmark { |
| public: |
| FSRectBench(void* param) |
| : INHERITED(param) |
| , fInit(false) { |
| } |
| |
| protected: |
| virtual const char* onGetName() SK_OVERRIDE { return "fullscreen_rects"; } |
| |
| virtual void onPreDraw() SK_OVERRIDE { |
| if (!fInit) { |
| SkRandom rand; |
| static const SkScalar kMinOffset = 0; |
| static const SkScalar kMaxOffset = 100 * SK_Scalar1; |
| static const SkScalar kOffsetRange = kMaxOffset - kMinOffset; |
| for (int i = 0; i < N; ++i) { |
| fRects[i].fLeft = -kMinOffset - SkScalarMul(rand.nextUScalar1(), kOffsetRange); |
| fRects[i].fTop = -kMinOffset - SkScalarMul(rand.nextUScalar1(), kOffsetRange); |
| fRects[i].fRight = W + kMinOffset + SkScalarMul(rand.nextUScalar1(), kOffsetRange); |
| fRects[i].fBottom = H + kMinOffset + SkScalarMul(rand.nextUScalar1(), kOffsetRange); |
| fColors[i] = rand.nextU() | 0xFF000000; |
| } |
| fInit = true; |
| } |
| } |
| |
| virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { |
| SkPaint paint; |
| for (int i = 0; i < N; ++i) { |
| paint.setColor(fColors[i]); |
| canvas->drawRect(fRects[i], paint); |
| } |
| } |
| |
| private: |
| enum { |
| W = 640, |
| H = 480, |
| N = SkBENCHLOOP(300) |
| }; |
| SkRect fRects[N]; |
| SkColor fColors[N]; |
| bool fInit; |
| |
| typedef SkBenchmark INHERITED; |
| }; |
| |
| DEF_BENCH( return SkNEW_ARGS(FSRectBench, (p)); ) |