1 files changed, 89 insertions, 0 deletions
diff --git a/chromium/cc/resources/picture_pile_impl_perftest.cc b/chromium/cc/resources/picture_pile_impl_perftest.cc
new file mode 100644
index 00000000000..7ced0eaa1be
--- /dev/null
+++ b/chromium/cc/resources/picture_pile_impl_perftest.cc
@@ -0,0 +1,89 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "cc/resources/picture_pile_impl.h"
+
+#include "cc/debug/lap_timer.h"
+#include "cc/test/fake_picture_pile_impl.h"
+#include "cc/test/fake_rendering_stats_instrumentation.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/perf/perf_test.h"
+
+namespace cc {
+namespace {
+
+const int kTimeLimitMillis = 2000;
+const int kWarmupRuns = 5;
+const int kTimeCheckInterval = 10;
+
+const int kTileSize = 100;
+const int kLayerSize = 1000;
+
+class PicturePileImplPerfTest : public testing::Test {
+ public:
+  PicturePileImplPerfTest()
+      : timer_(kWarmupRuns,
+               base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
+               kTimeCheckInterval) {}
+
+  void RunAnalyzeTest(const std::string& test_name, float contents_scale) {
+    scoped_refptr<PicturePileImpl> pile = FakePicturePileImpl::CreateFilledPile(
+        gfx::Size(kTileSize, kTileSize), gfx::Size(kLayerSize, kLayerSize));
+    // Content rect that will align with top-left tile at scale 1.0.
+    gfx::Rect content_rect(0, 0, kTileSize, kTileSize);
+
+    PicturePileImpl::Analysis analysis;
+    timer_.Reset();
+    do {
+      pile->AnalyzeInRect(content_rect, contents_scale, &analysis);
+      timer_.NextLap();
+    } while (!timer_.HasTimeLimitExpired());
+
+    perf_test::PrintResult(
+        "analyze", "", test_name, timer_.LapsPerSecond(), "runs/s", true);
+  }
+
+  void RunRasterTest(const std::string& test_name, float contents_scale) {
+    scoped_refptr<PicturePileImpl> pile = FakePicturePileImpl::CreateFilledPile(
+        gfx::Size(kTileSize, kTileSize), gfx::Size(kLayerSize, kLayerSize));
+    // Content rect that will align with top-left tile at scale 1.0.
+    gfx::Rect content_rect(0, 0, kTileSize, kTileSize);
+
+    SkBitmap bitmap;
+    bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1, 1);
+    bitmap.allocPixels();
+    SkCanvas canvas(bitmap);
+
+    FakeRenderingStatsInstrumentation rendering_stats_instrumentation;
+    timer_.Reset();
+    do {
+      pile->RasterToBitmap(&canvas,
+                           content_rect,
+                           contents_scale,
+                           &rendering_stats_instrumentation);
+      timer_.NextLap();
+    } while (!timer_.HasTimeLimitExpired());
+
+    perf_test::PrintResult(
+        "raster", "", test_name, timer_.LapsPerSecond(), "runs/s", true);
+  }
+
+ private:
+  LapTimer timer_;
+};
+
+TEST_F(PicturePileImplPerfTest, Analyze) {
+  RunAnalyzeTest("1", 1.0f);
+  RunAnalyzeTest("4", 0.5f);
+  RunAnalyzeTest("100", 0.1f);
+}
+
+TEST_F(PicturePileImplPerfTest, Raster) {
+  RunRasterTest("1", 1.0f);
+  RunRasterTest("4", 0.5f);
+  RunRasterTest("100", 0.1f);
+}
+
+}  // namespace
+}  // namespace cc