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Reland "[vr] Measure text render speed in GTest"
This is a reland of 3bc3b8b Original change's description: > [vr] Measure text render speed in GTest > > This change also adds a new target for performance tests in VR > and a target for dependencies shared among vr test targets. > > Bug: 772551, 774636 > Change-Id: I7de0cd8a5fcba3e71358625c1f3ebfb9bab49fba > Reviewed-on: https://chromium-review.googlesource.com/703690 > Commit-Queue: Tibor Goldschwendt <tiborg@chromium.org> > Reviewed-by: Scott Violet <sky@chromium.org> > Reviewed-by: Ian Vollick <vollick@chromium.org> > Cr-Commit-Position: refs/heads/master@{#509419} TBR=vollick@chromium.org,sky@chromium.org,leilei@chromium.org,cjgrant@chromium.org,tiborg@chromium.org Bug: 772551, 774636 Change-Id: I833e6dba30885fb7a902ac222614e8ab97f9f874 Reviewed-on: https://chromium-review.googlesource.com/723726 Commit-Queue: Tibor Goldschwendt <tiborg@chromium.org> Reviewed-by: Tibor Goldschwendt <tiborg@chromium.org> Cr-Commit-Position: refs/heads/master@{#509500}
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| // Copyright 2017 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. | ||
|
|
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| #include "base/memory/ptr_util.h" | ||
| #include "base/strings/utf_string_conversions.h" | ||
| #include "cc/base/lap_timer.h" | ||
| #include "chrome/browser/vr/elements/text.h" | ||
| #include "chrome/browser/vr/test/constants.h" | ||
| #include "chrome/browser/vr/test/gl_test_environment.h" | ||
| #include "testing/gtest/include/gtest/gtest.h" | ||
| #include "testing/perf/perf_test.h" | ||
|
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||
| namespace vr { | ||
|
|
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| namespace { | ||
|
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| constexpr int kMaximumTextWidthPixels = 512; | ||
| constexpr size_t kNumberOfRuns = 35; | ||
| constexpr float kFontHeightMeters = 0.05f; | ||
| constexpr float kTextWidthMeters = 1.0f; | ||
|
|
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| } // namespace | ||
|
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| class TextPerfTest : public testing::Test { | ||
| public: | ||
| void SetUp() override { | ||
| gl_test_environment_ = | ||
| base::MakeUnique<GlTestEnvironment>(kPixelHalfScreen); | ||
| text_element_ = base::MakeUnique<Text>(kMaximumTextWidthPixels, | ||
| kFontHeightMeters, kTextWidthMeters); | ||
| text_element_->Initialize(); | ||
| } | ||
|
|
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| void TearDown() override { | ||
| text_element_.reset(); | ||
| gl_test_environment_.reset(); | ||
| } | ||
|
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| protected: | ||
| void PrintResults(const std::string& name) { | ||
| perf_test::PrintResult(name, "", "render_time_avg", timer_.MsPerLap(), "ms", | ||
| true); | ||
| perf_test::PrintResult(name, "", "number_of_runs", | ||
| static_cast<size_t>(timer_.NumLaps()), "runs", true); | ||
| } | ||
|
|
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| void RenderAndLapTimer() { | ||
| static_cast<UiElement*>(text_element_.get())->PrepareToDraw(); | ||
| // Make sure all GL commands are applied before we measure the time. | ||
| glFinish(); | ||
| timer_.NextLap(); | ||
| } | ||
|
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| std::unique_ptr<Text> text_element_; | ||
| cc::LapTimer timer_; | ||
|
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| private: | ||
| std::unique_ptr<GlTestEnvironment> gl_test_environment_; | ||
| }; | ||
|
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| TEST_F(TextPerfTest, RenderLoremIpsum100Chars) { | ||
| base::string16 text = base::UTF8ToUTF16(kLoremIpsum100Chars); | ||
| timer_.Reset(); | ||
| for (size_t i = 0; i < kNumberOfRuns; i++) { | ||
| text[0] = 'a' + (i % 26); | ||
| text_element_->SetText(text); | ||
| RenderAndLapTimer(); | ||
| } | ||
| PrintResults("render_lorem_ipsum_100_chars"); | ||
| } | ||
|
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| TEST_F(TextPerfTest, RenderLoremIpsum700Chars) { | ||
| base::string16 text = base::UTF8ToUTF16(kLoremIpsum700Chars); | ||
| timer_.Reset(); | ||
| for (size_t i = 0; i < kNumberOfRuns; i++) { | ||
| text[0] = 'a' + (i % 26); | ||
| text_element_->SetText(text); | ||
| RenderAndLapTimer(); | ||
| } | ||
| PrintResults("render_lorem_ipsum_700_chars"); | ||
| } | ||
|
|
||
| } // namespace vr |
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