src/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 "testing/gtest/include/gtest/gtest.h"
  10 #include "testing/perf/perf_test.h"
  11
  12 namespace cc {
  13 namespace {
  14
  15 const int kTimeLimitMillis = 2000;
  16 const int kWarmupRuns = 5;
  17 const int kTimeCheckInterval = 10;
  18
  19 const int kTileSize = 100;
  20 const int kLayerSize = 1000;
  21
  22 class PicturePileImplPerfTest : public testing::Test {
  23  public:
  24   PicturePileImplPerfTest()
  25       : timer_(kWarmupRuns,
  26                base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
  27                kTimeCheckInterval) {}
  28
  29   void RunAnalyzeTest(const std::string& test_name, float contents_scale) {
  30     scoped_refptr<PicturePileImpl> pile = FakePicturePileImpl::CreateFilledPile(
  31         gfx::Size(kTileSize, kTileSize), gfx::Size(kLayerSize, kLayerSize));
  32     // Content rect that will align with top-left tile at scale 1.0.
  33     gfx::Rect content_rect(0, 0, kTileSize, kTileSize);
  34
  35     RasterSource::SolidColorAnalysis analysis;
  36     timer_.Reset();
  37     do {
  38       pile->PerformSolidColorAnalysis(content_rect, contents_scale, &analysis);
  39       timer_.NextLap();
  40     } while (!timer_.HasTimeLimitExpired());
  41
  42     perf_test::PrintResult(
  43         "analyze", "", test_name, timer_.LapsPerSecond(), "runs/s", true);
  44   }
  45
  46   void RunRasterTest(const std::string& test_name, float contents_scale) {
  47     scoped_refptr<PicturePileImpl> pile = FakePicturePileImpl::CreateFilledPile(
  48         gfx::Size(kTileSize, kTileSize), gfx::Size(kLayerSize, kLayerSize));
  49     // Content rect that will align with top-left tile at scale 1.0.
  50     gfx::Rect content_rect(0, 0, kTileSize, kTileSize);
  51
  52     SkBitmap bitmap;
  53     bitmap.allocN32Pixels(1, 1);
  54     SkCanvas canvas(bitmap);
  55
  56     timer_.Reset();
  57     do {
  58       pile->PlaybackToCanvas(&canvas, content_rect, contents_scale);
  59       timer_.NextLap();
  60     } while (!timer_.HasTimeLimitExpired());
  61
  62     perf_test::PrintResult(
  63         "raster", "", test_name, timer_.LapsPerSecond(), "runs/s", true);
  64   }
  65
  66  private:
  67   LapTimer timer_;
  68 };
  69
  70 TEST_F(PicturePileImplPerfTest, Analyze) {
  71   RunAnalyzeTest("1", 1.0f);
  72   RunAnalyzeTest("4", 0.5f);
  73   RunAnalyzeTest("100", 0.1f);
  74 }
  75
  76 TEST_F(PicturePileImplPerfTest, Raster) {
  77   RunRasterTest("1", 1.0f);
  78   RunRasterTest("4", 0.5f);
  79   RunRasterTest("100", 0.1f);
  80 }
  81
  82 }  // namespace
  83 }  // namespace cc