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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <atomic>
#include <memory>
#include "base/environment.h"
#include "base/files/file.h"
#include "base/run_loop.h"
#include "base/strings/utf_string_conversions.h"
#include "base/threading/thread_restrictions.h"
#include "chrome/browser/vr/test/mock_xr_device_hook_base.h"
#include "chrome/browser/vr/test/multi_class_browser_test.h"
#include "chrome/browser/vr/test/ui_utils.h"
#include "chrome/browser/vr/test/webxr_vr_browser_test.h"
// TODO(https://crbug.com/381000093): Fix tests on Android
#if !BUILDFLAG(IS_ANDROID)
namespace vr {
class MyXRMock : public MockXRDeviceHookBase {
public:
void OnFrameSubmitted(
std::vector<device_test::mojom::ViewDataPtr> views,
device_test::mojom::XRTestHook::OnFrameSubmittedCallback callback) final;
void WaitForFrame() {
DCHECK(!wait_loop_);
if (num_submitted_frames_ > 0)
return;
wait_loop_ = std::make_unique<base::RunLoop>(
base::RunLoop::Type::kNestableTasksAllowed);
can_signal_wait_loop_ = true;
wait_loop_->Run();
can_signal_wait_loop_ = false;
wait_loop_ = nullptr;
}
device_test::mojom::ColorPtr last_submitted_color_ = {};
unsigned int num_submitted_frames_ = 0;
private:
std::unique_ptr<base::RunLoop> wait_loop_ = nullptr;
// Used to track both if `wait_loop_` is valid in a thread-safe manner or if
// it has already had quit signaled on it, since `AnyQuitCalled` won't update
// until the `Quit` task has posted to the main thread.
std::atomic_bool can_signal_wait_loop_ = false;
};
void MyXRMock::OnFrameSubmitted(
std::vector<device_test::mojom::ViewDataPtr> views,
device_test::mojom::XRTestHook::OnFrameSubmittedCallback callback) {
// Since we clear the entire context to a single color (see onXRFrame() in
// webxr_boilerplate.js), every view in the frame has the same color.
last_submitted_color_ = std::move(views[0]->color);
num_submitted_frames_++;
if (can_signal_wait_loop_) {
wait_loop_->Quit();
can_signal_wait_loop_ = false;
}
std::move(callback).Run();
}
// Pixel test for WebXR - start presentation, submit frames, get data back
// out. Validates that a pixel was rendered with the expected color.
void TestPresentationPixelsImpl(WebXrVrBrowserTestBase* t,
std::string filename) {
// Disable frame-timeout UI to test what WebXR renders.
UiUtils::DisableOverlayForTesting();
MyXRMock my_mock;
// Load the test page, and enter presentation.
t->LoadFileAndAwaitInitialization(filename);
t->EnterSessionWithUserGestureOrFail();
// Wait for JavaScript to submit at least one frame.
ASSERT_TRUE(
t->PollJavaScriptBoolean("hasPresentedFrame", t->kPollTimeoutMedium))
<< "No frame submitted";
// Tell JavaScript that it is done with the test.
t->ExecuteStepAndWait("finishTest()");
t->EndTest();
my_mock.WaitForFrame();
auto expected = device_test::mojom::Color::New(0, 0, 255, 255);
EXPECT_EQ(expected->r, my_mock.last_submitted_color_->r)
<< "Red channel of submitted color does not match expectation";
EXPECT_EQ(expected->g, my_mock.last_submitted_color_->g)
<< "Green channel of submitted color does not match expectation";
EXPECT_EQ(expected->b, my_mock.last_submitted_color_->b)
<< "Blue channel of submitted color does not match expectation";
EXPECT_EQ(expected->a, my_mock.last_submitted_color_->a)
<< "Alpha channel of submitted color does not match expectation";
}
WEBXR_VR_ALL_RUNTIMES_BROWSER_TEST_F(TestPresentationPixels) {
TestPresentationPixelsImpl(t, "test_webxr_pixels");
}
} // namespace vr
#endif // if !BUILDFLAG(IS_ANDROID)
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