cc/resources/picture_pile_impl_perftest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/resources/picture_pile_impl.h"
   6
   7 #include "cc/debug/lap_timer.h"
   8 #include "cc/test/fake_picture_pile_impl.h"
   9 #include "cc/test/fake_rendering_stats_instrumentation.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11 #include "testing/perf/perf_test.h"
  12
  13 namespace cc {
  14 namespace {
  15
  16 const int kTimeLimitMillis = 2000;
  17 const int kWarmupRuns = 5;
  18 const int kTimeCheckInterval = 10;
  19
  20 const int kTileSize = 100;
  21 const int kLayerSize = 1000;
  22
  23 class PicturePileImplPerfTest : public testing::Test {
  24  public:
  25   PicturePileImplPerfTest()
  26       : timer_(kWarmupRuns,
  27                base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
  28                kTimeCheckInterval) {}
  29
  30   void RunAnalyzeTest(const std::string& test_name, float contents_scale) {
  31     scoped_refptr<PicturePileImpl> pile = FakePicturePileImpl::CreateFilledPile(
  32         gfx::Size(kTileSize, kTileSize), gfx::Size(kLayerSize, kLayerSize));
  33     // Content rect that will align with top-left tile at scale 1.0.
  34     gfx::Rect content_rect(0, 0, kTileSize, kTileSize);
  35
  36     PicturePileImpl::Analysis analysis;
  37     timer_.Reset();
  38     do {
  39       pile->AnalyzeInRect(content_rect, contents_scale, &analysis);
  40       timer_.NextLap();
  41     } while (!timer_.HasTimeLimitExpired());
  42
  43     perf_test::PrintResult(
  44         "analyze", "", test_name, timer_.LapsPerSecond(), "runs/s", true);
  45   }
  46
  47   void RunRasterTest(const std::string& test_name, float contents_scale) {
  48     scoped_refptr<PicturePileImpl> pile = FakePicturePileImpl::CreateFilledPile(
  49         gfx::Size(kTileSize, kTileSize), gfx::Size(kLayerSize, kLayerSize));
  50     // Content rect that will align with top-left tile at scale 1.0.
  51     gfx::Rect content_rect(0, 0, kTileSize, kTileSize);
  52
  53     SkBitmap bitmap;
  54     bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1, 1);
  55     bitmap.allocPixels();
  56     SkCanvas canvas(bitmap);
  57
  58     FakeRenderingStatsInstrumentation rendering_stats_instrumentation;
  59     timer_.Reset();
  60     do {
  61       pile->RasterToBitmap(&canvas,
  62                            content_rect,
  63                            contents_scale,
  64                            &rendering_stats_instrumentation);
  65       timer_.NextLap();
  66     } while (!timer_.HasTimeLimitExpired());
  67
  68     perf_test::PrintResult(
  69         "raster", "", test_name, timer_.LapsPerSecond(), "runs/s", true);
  70   }
  71
  72  private:
  73   LapTimer timer_;
  74 };
  75
  76 TEST_F(PicturePileImplPerfTest, Analyze) {
  77   RunAnalyzeTest("1", 1.0f);
  78   RunAnalyzeTest("4", 0.5f);
  79   RunAnalyzeTest("100", 0.1f);
  80 }
  81
  82 TEST_F(PicturePileImplPerfTest, Raster) {
  83   RunRasterTest("1", 1.0f);
  84   RunRasterTest("4", 0.5f);
  85   RunRasterTest("100", 0.1f);
  86 }
  87
  88 }  // namespace
  89 }  // namespace cc