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embedder_unittests.cc
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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#define FML_USED_ON_EMBEDDER
#include <string>
#include <utility>
#include <vector>
#include "embedder.h"
#include "embedder_engine.h"
#include "flutter/common/constants.h"
#include "flutter/flow/raster_cache.h"
#include "flutter/fml/file.h"
#include "flutter/fml/make_copyable.h"
#include "flutter/fml/mapping.h"
#include "flutter/fml/message_loop.h"
#include "flutter/fml/paths.h"
#include "flutter/fml/synchronization/count_down_latch.h"
#include "flutter/fml/synchronization/waitable_event.h"
#include "flutter/fml/task_runner.h"
#include "flutter/fml/thread.h"
#include "flutter/fml/time/time_delta.h"
#include "flutter/fml/time/time_point.h"
#include "flutter/runtime/dart_vm.h"
#include "flutter/shell/platform/embedder/tests/embedder_assertions.h"
#include "flutter/shell/platform/embedder/tests/embedder_config_builder.h"
#include "flutter/shell/platform/embedder/tests/embedder_test.h"
#include "flutter/shell/platform/embedder/tests/embedder_test_backingstore_producer_software.h"
#include "flutter/shell/platform/embedder/tests/embedder_unittests_util.h"
#include "flutter/testing/assertions_skia.h"
#include "flutter/testing/testing.h"
#include "third_party/skia/include/core/SkSurface.h"
#include "third_party/tonic/converter/dart_converter.h"
#if defined(FML_OS_MACOSX)
#include <pthread.h>
#endif
// CREATE_NATIVE_ENTRY is leaky by design
// NOLINTBEGIN(clang-analyzer-core.StackAddressEscape)
namespace {
static uint64_t NanosFromEpoch(int millis_from_now) {
const auto now = fml::TimePoint::Now();
const auto delta = fml::TimeDelta::FromMilliseconds(millis_from_now);
return (now + delta).ToEpochDelta().ToNanoseconds();
}
} // namespace
namespace flutter {
namespace testing {
using EmbedderTest = testing::EmbedderTest;
TEST(EmbedderTestNoFixture, MustNotRunWithInvalidArgs) {
EmbedderTestContextSoftware context;
EmbedderConfigBuilder builder(
context, EmbedderConfigBuilder::InitializationPreference::kNoInitialize);
auto engine = builder.LaunchEngine();
ASSERT_FALSE(engine.is_valid());
}
TEST_F(EmbedderTest, CanLaunchAndShutdownWithValidProjectArgs) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
fml::AutoResetWaitableEvent latch;
context.AddIsolateCreateCallback([&latch]() { latch.Signal(); });
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
auto engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
// Wait for the root isolate to launch.
latch.Wait();
engine.reset();
}
// TODO(41999): Disabled because flaky.
TEST_F(EmbedderTest, DISABLED_CanLaunchAndShutdownMultipleTimes) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
for (size_t i = 0; i < 3; ++i) {
auto engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
FML_LOG(INFO) << "Engine launch count: " << i + 1;
}
}
TEST_F(EmbedderTest, CanInvokeCustomEntrypoint) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
static fml::AutoResetWaitableEvent latch;
Dart_NativeFunction entrypoint = [](Dart_NativeArguments args) {
latch.Signal();
};
context.AddNativeCallback("SayHiFromCustomEntrypoint", entrypoint);
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
builder.SetDartEntrypoint("customEntrypoint");
auto engine = builder.LaunchEngine();
latch.Wait();
ASSERT_TRUE(engine.is_valid());
}
TEST_F(EmbedderTest, CanInvokeCustomEntrypointMacro) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
fml::AutoResetWaitableEvent latch1;
fml::AutoResetWaitableEvent latch2;
fml::AutoResetWaitableEvent latch3;
// Can be defined separately.
auto entry1 = [&latch1](Dart_NativeArguments args) {
FML_LOG(INFO) << "In Callback 1";
latch1.Signal();
};
auto native_entry1 = CREATE_NATIVE_ENTRY(entry1);
context.AddNativeCallback("SayHiFromCustomEntrypoint1", native_entry1);
// Can be wrapped in the args.
auto entry2 = [&latch2](Dart_NativeArguments args) {
FML_LOG(INFO) << "In Callback 2";
latch2.Signal();
};
context.AddNativeCallback("SayHiFromCustomEntrypoint2",
CREATE_NATIVE_ENTRY(entry2));
// Everything can be inline.
context.AddNativeCallback(
"SayHiFromCustomEntrypoint3",
CREATE_NATIVE_ENTRY([&latch3](Dart_NativeArguments args) {
FML_LOG(INFO) << "In Callback 3";
latch3.Signal();
}));
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
builder.SetDartEntrypoint("customEntrypoint1");
auto engine = builder.LaunchEngine();
latch1.Wait();
latch2.Wait();
latch3.Wait();
ASSERT_TRUE(engine.is_valid());
}
TEST_F(EmbedderTest, CanTerminateCleanly) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
builder.SetDartEntrypoint("terminateExitCodeHandler");
auto engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
}
TEST_F(EmbedderTest, ExecutableNameNotNull) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
// Supply a callback to Dart for the test fixture to pass Platform.executable
// back to us.
fml::AutoResetWaitableEvent latch;
context.AddNativeCallback(
"NotifyStringValue", CREATE_NATIVE_ENTRY([&](Dart_NativeArguments args) {
const auto dart_string = tonic::DartConverter<std::string>::FromDart(
Dart_GetNativeArgument(args, 0));
EXPECT_EQ("/path/to/binary", dart_string);
latch.Signal();
}));
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
builder.SetDartEntrypoint("executableNameNotNull");
builder.SetExecutableName("/path/to/binary");
auto engine = builder.LaunchEngine();
latch.Wait();
}
TEST_F(EmbedderTest, ImplicitViewNotNull) {
// TODO(loicsharma): Update this test when embedders can opt-out
// of the implicit view.
// See: https://github.com/flutter/flutter/issues/120306
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
bool implicitViewNotNull = false;
fml::AutoResetWaitableEvent latch;
context.AddNativeCallback(
"NotifyBoolValue", CREATE_NATIVE_ENTRY([&](Dart_NativeArguments args) {
implicitViewNotNull = tonic::DartConverter<bool>::FromDart(
Dart_GetNativeArgument(args, 0));
latch.Signal();
}));
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
builder.SetDartEntrypoint("implicitViewNotNull");
auto engine = builder.LaunchEngine();
latch.Wait();
EXPECT_TRUE(implicitViewNotNull);
}
std::atomic_size_t EmbedderTestTaskRunner::sEmbedderTaskRunnerIdentifiers = {};
TEST_F(EmbedderTest, CanSpecifyCustomPlatformTaskRunner) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
fml::AutoResetWaitableEvent latch;
// Run the test on its own thread with a message loop so that it can safely
// pump its event loop while we wait for all the conditions to be checked.
auto platform_task_runner = CreateNewThread("test_platform_thread");
static std::mutex engine_mutex;
static bool signaled_once = false;
static std::atomic<bool> destruction_callback_called = false;
UniqueEngine engine;
EmbedderTestTaskRunner test_task_runner(
platform_task_runner, [&](FlutterTask task) {
std::scoped_lock lock(engine_mutex);
if (!engine.is_valid()) {
return;
}
// There may be multiple tasks posted but we only need to check
// assertions once.
if (signaled_once) {
FlutterEngineRunTask(engine.get(), &task);
return;
}
signaled_once = true;
ASSERT_TRUE(engine.is_valid());
ASSERT_EQ(FlutterEngineRunTask(engine.get(), &task), kSuccess);
latch.Signal();
});
test_task_runner.SetDestructionCallback(
[](void* user_data) { destruction_callback_called = true; });
platform_task_runner->PostTask([&]() {
EmbedderConfigBuilder builder(context);
const auto task_runner_description =
test_task_runner.GetFlutterTaskRunnerDescription();
builder.SetSurface(SkISize::Make(1, 1));
builder.SetPlatformTaskRunner(&task_runner_description);
builder.SetDartEntrypoint("invokePlatformTaskRunner");
std::scoped_lock lock(engine_mutex);
engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
});
// Signaled when all the assertions are checked.
latch.Wait();
ASSERT_TRUE(engine.is_valid());
// Since the engine was started on its own thread, it must be killed there as
// well.
fml::AutoResetWaitableEvent kill_latch;
platform_task_runner->PostTask(fml::MakeCopyable([&]() mutable {
std::scoped_lock lock(engine_mutex);
engine.reset();
// There may still be pending tasks on the platform thread that were queued
// by the test_task_runner. Signal the latch after these tasks have been
// consumed.
platform_task_runner->PostTask([&kill_latch] { kill_latch.Signal(); });
}));
kill_latch.Wait();
ASSERT_TRUE(signaled_once);
signaled_once = false;
ASSERT_TRUE(destruction_callback_called);
destruction_callback_called = false;
}
TEST(EmbedderTestNoFixture, CanGetCurrentTimeInNanoseconds) {
auto point1 = fml::TimePoint::FromEpochDelta(
fml::TimeDelta::FromNanoseconds(FlutterEngineGetCurrentTime()));
auto point2 = fml::TimePoint::Now();
ASSERT_LT((point2 - point1), fml::TimeDelta::FromMilliseconds(1));
}
TEST_F(EmbedderTest, CanReloadSystemFonts) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
auto engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
auto result = FlutterEngineReloadSystemFonts(engine.get());
ASSERT_EQ(result, kSuccess);
}
TEST_F(EmbedderTest, IsolateServiceIdSent) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
fml::AutoResetWaitableEvent latch;
fml::Thread thread;
UniqueEngine engine;
std::string isolate_message;
thread.GetTaskRunner()->PostTask([&]() {
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
builder.SetDartEntrypoint("main");
builder.SetPlatformMessageCallback(
[&](const FlutterPlatformMessage* message) {
if (strcmp(message->channel, "flutter/isolate") == 0) {
isolate_message = {reinterpret_cast<const char*>(message->message),
message->message_size};
latch.Signal();
}
});
engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
});
// Wait for the isolate ID message and check its format.
latch.Wait();
ASSERT_EQ(isolate_message.find("isolates/"), 0ul);
// Since the engine was started on its own thread, it must be killed there as
// well.
fml::AutoResetWaitableEvent kill_latch;
thread.GetTaskRunner()->PostTask(
fml::MakeCopyable([&engine, &kill_latch]() mutable {
engine.reset();
kill_latch.Signal();
}));
kill_latch.Wait();
}
//------------------------------------------------------------------------------
/// Creates a platform message response callbacks, does NOT send them, and
/// immediately collects the same.
///
TEST_F(EmbedderTest, CanCreateAndCollectCallbacks) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
builder.SetDartEntrypoint("platform_messages_response");
context.AddNativeCallback(
"SignalNativeTest",
CREATE_NATIVE_ENTRY([](Dart_NativeArguments args) {}));
auto engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
FlutterPlatformMessageResponseHandle* response_handle = nullptr;
auto callback = [](const uint8_t* data, size_t size,
void* user_data) -> void {};
auto result = FlutterPlatformMessageCreateResponseHandle(
engine.get(), callback, nullptr, &response_handle);
ASSERT_EQ(result, kSuccess);
ASSERT_NE(response_handle, nullptr);
result = FlutterPlatformMessageReleaseResponseHandle(engine.get(),
response_handle);
ASSERT_EQ(result, kSuccess);
}
//------------------------------------------------------------------------------
/// Sends platform messages to Dart code than simply echoes the contents of the
/// message back to the embedder. The embedder registers a native callback to
/// intercept that message.
///
TEST_F(EmbedderTest, PlatformMessagesCanReceiveResponse) {
struct Captures {
fml::AutoResetWaitableEvent latch;
std::thread::id thread_id;
};
Captures captures;
CreateNewThread()->PostTask([&]() {
captures.thread_id = std::this_thread::get_id();
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
builder.SetDartEntrypoint("platform_messages_response");
fml::AutoResetWaitableEvent ready;
context.AddNativeCallback(
"SignalNativeTest",
CREATE_NATIVE_ENTRY(
[&ready](Dart_NativeArguments args) { ready.Signal(); }));
auto engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
static std::string kMessageData = "Hello from embedder.";
FlutterPlatformMessageResponseHandle* response_handle = nullptr;
auto callback = [](const uint8_t* data, size_t size,
void* user_data) -> void {
ASSERT_EQ(size, kMessageData.size());
ASSERT_EQ(strncmp(reinterpret_cast<const char*>(kMessageData.data()),
reinterpret_cast<const char*>(data), size),
0);
auto captures = reinterpret_cast<Captures*>(user_data);
ASSERT_EQ(captures->thread_id, std::this_thread::get_id());
captures->latch.Signal();
};
auto result = FlutterPlatformMessageCreateResponseHandle(
engine.get(), callback, &captures, &response_handle);
ASSERT_EQ(result, kSuccess);
FlutterPlatformMessage message = {};
message.struct_size = sizeof(FlutterPlatformMessage);
message.channel = "test_channel";
message.message = reinterpret_cast<const uint8_t*>(kMessageData.data());
message.message_size = kMessageData.size();
message.response_handle = response_handle;
ready.Wait();
result = FlutterEngineSendPlatformMessage(engine.get(), &message);
ASSERT_EQ(result, kSuccess);
result = FlutterPlatformMessageReleaseResponseHandle(engine.get(),
response_handle);
ASSERT_EQ(result, kSuccess);
});
captures.latch.Wait();
}
//------------------------------------------------------------------------------
/// Tests that a platform message can be sent with no response handle. Instead
/// of the platform message integrity checked via a response handle, a native
/// callback with the response is invoked to assert integrity.
///
TEST_F(EmbedderTest, PlatformMessagesCanBeSentWithoutResponseHandles) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
builder.SetDartEntrypoint("platform_messages_no_response");
const std::string message_data = "Hello but don't call me back.";
fml::AutoResetWaitableEvent ready, message;
context.AddNativeCallback(
"SignalNativeTest",
CREATE_NATIVE_ENTRY(
[&ready](Dart_NativeArguments args) { ready.Signal(); }));
context.AddNativeCallback(
"SignalNativeMessage",
CREATE_NATIVE_ENTRY(
([&message, &message_data](Dart_NativeArguments args) {
auto received_message = tonic::DartConverter<std::string>::FromDart(
Dart_GetNativeArgument(args, 0));
ASSERT_EQ(received_message, message_data);
message.Signal();
})));
auto engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
ready.Wait();
FlutterPlatformMessage platform_message = {};
platform_message.struct_size = sizeof(FlutterPlatformMessage);
platform_message.channel = "test_channel";
platform_message.message =
reinterpret_cast<const uint8_t*>(message_data.data());
platform_message.message_size = message_data.size();
platform_message.response_handle = nullptr; // No response needed.
auto result =
FlutterEngineSendPlatformMessage(engine.get(), &platform_message);
ASSERT_EQ(result, kSuccess);
message.Wait();
}
//------------------------------------------------------------------------------
/// Tests that a null platform message can be sent.
///
TEST_F(EmbedderTest, NullPlatformMessagesCanBeSent) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
builder.SetDartEntrypoint("null_platform_messages");
fml::AutoResetWaitableEvent ready, message;
context.AddNativeCallback(
"SignalNativeTest",
CREATE_NATIVE_ENTRY(
[&ready](Dart_NativeArguments args) { ready.Signal(); }));
context.AddNativeCallback(
"SignalNativeMessage",
CREATE_NATIVE_ENTRY(([&message](Dart_NativeArguments args) {
auto received_message = tonic::DartConverter<std::string>::FromDart(
Dart_GetNativeArgument(args, 0));
ASSERT_EQ("true", received_message);
message.Signal();
})));
auto engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
ready.Wait();
FlutterPlatformMessage platform_message = {};
platform_message.struct_size = sizeof(FlutterPlatformMessage);
platform_message.channel = "test_channel";
platform_message.message = nullptr;
platform_message.message_size = 0;
platform_message.response_handle = nullptr; // No response needed.
auto result =
FlutterEngineSendPlatformMessage(engine.get(), &platform_message);
ASSERT_EQ(result, kSuccess);
message.Wait();
}
//------------------------------------------------------------------------------
/// Tests that a null platform message cannot be send if the message_size
/// isn't equals to 0.
///
TEST_F(EmbedderTest, InvalidPlatformMessages) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
auto engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
FlutterPlatformMessage platform_message = {};
platform_message.struct_size = sizeof(FlutterPlatformMessage);
platform_message.channel = "test_channel";
platform_message.message = nullptr;
platform_message.message_size = 1;
platform_message.response_handle = nullptr; // No response needed.
auto result =
FlutterEngineSendPlatformMessage(engine.get(), &platform_message);
ASSERT_EQ(result, kInvalidArguments);
}
//------------------------------------------------------------------------------
/// Tests that setting a custom log callback works as expected and defaults to
/// using tag "flutter".
TEST_F(EmbedderTest, CanSetCustomLogMessageCallback) {
fml::AutoResetWaitableEvent callback_latch;
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetDartEntrypoint("custom_logger");
builder.SetSurface(SkISize::Make(1, 1));
context.SetLogMessageCallback(
[&callback_latch](const char* tag, const char* message) {
EXPECT_EQ(std::string(tag), "flutter");
EXPECT_EQ(std::string(message), "hello world");
callback_latch.Signal();
});
auto engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
callback_latch.Wait();
}
//------------------------------------------------------------------------------
/// Tests that setting a custom log tag works.
TEST_F(EmbedderTest, CanSetCustomLogTag) {
fml::AutoResetWaitableEvent callback_latch;
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetDartEntrypoint("custom_logger");
builder.SetSurface(SkISize::Make(1, 1));
builder.SetLogTag("butterfly");
context.SetLogMessageCallback(
[&callback_latch](const char* tag, const char* message) {
EXPECT_EQ(std::string(tag), "butterfly");
EXPECT_EQ(std::string(message), "hello world");
callback_latch.Signal();
});
auto engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
callback_latch.Wait();
}
//------------------------------------------------------------------------------
/// Asserts behavior of FlutterProjectArgs::shutdown_dart_vm_when_done (which is
/// set to true by default in these unit-tests).
///
TEST_F(EmbedderTest, VMShutsDownWhenNoEnginesInProcess) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
const auto launch_count = DartVM::GetVMLaunchCount();
{
auto engine = builder.LaunchEngine();
ASSERT_EQ(launch_count + 1u, DartVM::GetVMLaunchCount());
}
{
auto engine = builder.LaunchEngine();
ASSERT_EQ(launch_count + 2u, DartVM::GetVMLaunchCount());
}
}
//------------------------------------------------------------------------------
///
TEST_F(EmbedderTest, DartEntrypointArgs) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
builder.AddDartEntrypointArgument("foo");
builder.AddDartEntrypointArgument("bar");
builder.SetDartEntrypoint("dart_entrypoint_args");
fml::AutoResetWaitableEvent callback_latch;
std::vector<std::string> callback_args;
auto nativeArgumentsCallback = [&callback_args,
&callback_latch](Dart_NativeArguments args) {
Dart_Handle exception = nullptr;
callback_args =
tonic::DartConverter<std::vector<std::string>>::FromArguments(
args, 0, exception);
callback_latch.Signal();
};
context.AddNativeCallback("NativeArgumentsCallback",
CREATE_NATIVE_ENTRY(nativeArgumentsCallback));
auto engine = builder.LaunchEngine();
callback_latch.Wait();
ASSERT_EQ(callback_args[0], "foo");
ASSERT_EQ(callback_args[1], "bar");
}
//------------------------------------------------------------------------------
/// These snapshots may be materialized from symbols and the size field may not
/// be relevant. Since this information is redundant, engine launch should not
/// be gated on a non-zero buffer size.
///
TEST_F(EmbedderTest, VMAndIsolateSnapshotSizesAreRedundantInAOTMode) {
if (!DartVM::IsRunningPrecompiledCode()) {
GTEST_SKIP();
return;
}
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(1, 1));
// The fixture sets this up correctly. Intentionally mess up the args.
builder.GetProjectArgs().vm_snapshot_data_size = 0;
builder.GetProjectArgs().vm_snapshot_instructions_size = 0;
builder.GetProjectArgs().isolate_snapshot_data_size = 0;
builder.GetProjectArgs().isolate_snapshot_instructions_size = 0;
auto engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
}
TEST_F(EmbedderTest, CanRenderImplicitView) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(800, 600));
builder.SetCompositor();
builder.SetDartEntrypoint("render_implicit_view");
builder.SetRenderTargetType(
EmbedderTestBackingStoreProducer::RenderTargetType::kSoftwareBuffer);
fml::AutoResetWaitableEvent latch;
context.GetCompositor().SetNextPresentCallback(
[&](FlutterViewId view_id, const FlutterLayer** layers,
size_t layers_count) {
ASSERT_EQ(view_id, kFlutterImplicitViewId);
latch.Signal();
});
auto engine = builder.LaunchEngine();
FlutterWindowMetricsEvent event = {};
event.struct_size = sizeof(event);
event.width = 300;
event.height = 200;
event.pixel_ratio = 1.0;
ASSERT_EQ(FlutterEngineSendWindowMetricsEvent(engine.get(), &event),
kSuccess);
ASSERT_TRUE(engine.is_valid());
latch.Wait();
}
TEST_F(EmbedderTest, CanRenderImplicitViewUsingPresentLayersCallback) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(800, 600));
builder.SetCompositor(/* avoid_backing_store_cache = */ false,
/* use_present_layers_callback = */ true);
builder.SetDartEntrypoint("render_implicit_view");
builder.SetRenderTargetType(
EmbedderTestBackingStoreProducer::RenderTargetType::kSoftwareBuffer);
fml::AutoResetWaitableEvent latch;
context.GetCompositor().SetNextPresentCallback(
[&](FlutterViewId view_id, const FlutterLayer** layers,
size_t layers_count) {
ASSERT_EQ(view_id, kFlutterImplicitViewId);
latch.Signal();
});
auto engine = builder.LaunchEngine();
FlutterWindowMetricsEvent event = {};
event.struct_size = sizeof(event);
event.width = 300;
event.height = 200;
event.pixel_ratio = 1.0;
ASSERT_EQ(FlutterEngineSendWindowMetricsEvent(engine.get(), &event),
kSuccess);
ASSERT_TRUE(engine.is_valid());
latch.Wait();
}
//------------------------------------------------------------------------------
/// Test the layer structure and pixels rendered when using a custom software
/// compositor.
///
// TODO(143940): Convert this test to use SkiaGold.
#if FML_OS_MACOSX && FML_ARCH_CPU_ARM64
TEST_F(EmbedderTest,
DISABLED_CompositorMustBeAbleToRenderKnownSceneWithSoftwareCompositor) {
#else
TEST_F(EmbedderTest,
CompositorMustBeAbleToRenderKnownSceneWithSoftwareCompositor) {
#endif // FML_OS_MACOSX && FML_ARCH_CPU_ARM64
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(800, 600));
builder.SetCompositor();
builder.SetDartEntrypoint("can_composite_platform_views_with_known_scene");
builder.SetRenderTargetType(
EmbedderTestBackingStoreProducer::RenderTargetType::kSoftwareBuffer);
fml::CountDownLatch latch(5);
auto scene_image = context.GetNextSceneImage();
context.GetCompositor().SetNextPresentCallback(
[&](FlutterViewId view_id, const FlutterLayer** layers,
size_t layers_count) {
ASSERT_EQ(layers_count, 5u);
// Layer Root
{
FlutterBackingStore backing_store = *layers[0]->backing_store;
backing_store.type = kFlutterBackingStoreTypeSoftware;
backing_store.did_update = true;
backing_store.software.height = 600;
FlutterRect paint_region_rects[] = {
FlutterRectMakeLTRB(0, 0, 800, 600),
};
FlutterRegion paint_region = {
.struct_size = sizeof(FlutterRegion),
.rects_count = 1,
.rects = paint_region_rects,
};
FlutterBackingStorePresentInfo present_info = {
.struct_size = sizeof(FlutterBackingStorePresentInfo),
.paint_region = &paint_region,
};
FlutterLayer layer = {};
layer.struct_size = sizeof(layer);
layer.type = kFlutterLayerContentTypeBackingStore;
layer.backing_store = &backing_store;
layer.size = FlutterSizeMake(800.0, 600.0);
layer.offset = FlutterPointMake(0.0, 0.0);
layer.backing_store_present_info = &present_info;
ASSERT_EQ(*layers[0], layer);
}
// Layer 1
{
FlutterPlatformView platform_view = *layers[1]->platform_view;
platform_view.struct_size = sizeof(platform_view);
platform_view.identifier = 1;
FlutterLayer layer = {};
layer.struct_size = sizeof(layer);
layer.type = kFlutterLayerContentTypePlatformView;
layer.platform_view = &platform_view;
layer.size = FlutterSizeMake(50.0, 150.0);
layer.offset = FlutterPointMake(20.0, 20.0);
ASSERT_EQ(*layers[1], layer);
}
// Layer 2
{
FlutterBackingStore backing_store = *layers[2]->backing_store;
backing_store.type = kFlutterBackingStoreTypeSoftware;
backing_store.did_update = true;
backing_store.software.height = 600;
FlutterRect paint_region_rects[] = {
FlutterRectMakeLTRB(30, 30, 80, 180),
};
FlutterRegion paint_region = {
.struct_size = sizeof(FlutterRegion),
.rects_count = 1,
.rects = paint_region_rects,
};
FlutterBackingStorePresentInfo present_info = {
.struct_size = sizeof(FlutterBackingStorePresentInfo),
.paint_region = &paint_region,
};
FlutterLayer layer = {};
layer.struct_size = sizeof(layer);
layer.type = kFlutterLayerContentTypeBackingStore;
layer.backing_store = &backing_store;
layer.size = FlutterSizeMake(800.0, 600.0);
layer.offset = FlutterPointMake(0.0, 0.0);
layer.backing_store_present_info = &present_info;
ASSERT_EQ(*layers[2], layer);
}
// Layer 3
{
FlutterPlatformView platform_view = *layers[3]->platform_view;
platform_view.struct_size = sizeof(platform_view);
platform_view.identifier = 2;
FlutterLayer layer = {};
layer.struct_size = sizeof(layer);
layer.type = kFlutterLayerContentTypePlatformView;
layer.platform_view = &platform_view;
layer.size = FlutterSizeMake(50.0, 150.0);
layer.offset = FlutterPointMake(40.0, 40.0);
ASSERT_EQ(*layers[3], layer);
}
// Layer 4
{
FlutterBackingStore backing_store = *layers[4]->backing_store;
backing_store.type = kFlutterBackingStoreTypeSoftware;
backing_store.did_update = true;
backing_store.software.height = 600;
FlutterRect paint_region_rects[] = {
FlutterRectMakeLTRB(50, 50, 100, 200),
};
FlutterRegion paint_region = {
.struct_size = sizeof(FlutterRegion),
.rects_count = 1,
.rects = paint_region_rects,
};
FlutterBackingStorePresentInfo present_info = {
.struct_size = sizeof(FlutterBackingStorePresentInfo),
.paint_region = &paint_region,
};
FlutterLayer layer = {};
layer.struct_size = sizeof(layer);
layer.type = kFlutterLayerContentTypeBackingStore;
layer.backing_store = &backing_store;
layer.size = FlutterSizeMake(800.0, 600.0);
layer.offset = FlutterPointMake(0.0, 0.0);
layer.backing_store_present_info = &present_info;
ASSERT_EQ(*layers[4], layer);
}
latch.CountDown();
});
context.GetCompositor().SetPlatformViewRendererCallback(
[&](const FlutterLayer& layer, GrDirectContext*
/* don't use because software compositor */) -> sk_sp<SkImage> {
auto surface = CreateRenderSurface(
layer, nullptr /* null because software compositor */);
auto canvas = surface->getCanvas();
FML_CHECK(canvas != nullptr);
switch (layer.platform_view->identifier) {
case 1: {
SkPaint paint;
// See dart test for total order.
paint.setColor(SK_ColorGREEN);
paint.setAlpha(127);
const auto& rect =
SkRect::MakeWH(layer.size.width, layer.size.height);
canvas->drawRect(rect, paint);
latch.CountDown();
} break;
case 2: {
SkPaint paint;
// See dart test for total order.
paint.setColor(SK_ColorMAGENTA);
paint.setAlpha(127);
const auto& rect =
SkRect::MakeWH(layer.size.width, layer.size.height);
canvas->drawRect(rect, paint);
latch.CountDown();
} break;
default:
// Asked to render an unknown platform view.
FML_CHECK(false)
<< "Test was asked to composite an unknown platform view.";
}
return surface->makeImageSnapshot();
});
context.AddNativeCallback(
"SignalNativeTest",
CREATE_NATIVE_ENTRY(
[&latch](Dart_NativeArguments args) { latch.CountDown(); }));
auto engine = builder.LaunchEngine();
// Send a window metrics events so frames may be scheduled.
FlutterWindowMetricsEvent event = {};
event.struct_size = sizeof(event);
event.width = 800;
event.height = 600;
event.pixel_ratio = 1.0;
event.physical_view_inset_top = 0.0;
event.physical_view_inset_right = 0.0;
event.physical_view_inset_bottom = 0.0;
event.physical_view_inset_left = 0.0;
ASSERT_EQ(FlutterEngineSendWindowMetricsEvent(engine.get(), &event),
kSuccess);
ASSERT_TRUE(engine.is_valid());
latch.Wait();
ASSERT_TRUE(ImageMatchesFixture("compositor_software.png", scene_image));
// There should no present calls on the root surface.
ASSERT_EQ(context.GetSurfacePresentCount(), 0u);
}
//------------------------------------------------------------------------------
/// Test the layer structure and pixels rendered when using a custom software
/// compositor, with a transparent overlay
///
TEST_F(EmbedderTest, NoLayerCreatedForTransparentOverlayOnTopOfPlatformLayer) {
auto& context = GetEmbedderContext<EmbedderTestContextSoftware>();
EmbedderConfigBuilder builder(context);
builder.SetSurface(SkISize::Make(800, 600));
builder.SetCompositor();
builder.SetDartEntrypoint("can_composite_platform_views_transparent_overlay");
builder.SetRenderTargetType(
EmbedderTestBackingStoreProducer::RenderTargetType::kSoftwareBuffer);
fml::CountDownLatch latch(4);
auto scene_image = context.GetNextSceneImage();
context.GetCompositor().SetNextPresentCallback(
[&](FlutterViewId view_id, const FlutterLayer** layers,
size_t layers_count) {
ASSERT_EQ(layers_count, 2u);
// Layer Root
{
FlutterBackingStore backing_store = *layers[0]->backing_store;
backing_store.type = kFlutterBackingStoreTypeSoftware;
backing_store.did_update = true;
backing_store.software.height = 600;
FlutterRect paint_region_rects[] = {
FlutterRectMakeLTRB(0, 0, 800, 600),
};
FlutterRegion paint_region = {
.struct_size = sizeof(FlutterRegion),
.rects_count = 1,
.rects = paint_region_rects,
};
FlutterBackingStorePresentInfo present_info = {
.struct_size = sizeof(FlutterBackingStorePresentInfo),
.paint_region = &paint_region,
};
FlutterLayer layer = {};
layer.struct_size = sizeof(layer);
layer.type = kFlutterLayerContentTypeBackingStore;
layer.backing_store = &backing_store;
layer.size = FlutterSizeMake(800.0, 600.0);
layer.offset = FlutterPointMake(0.0, 0.0);
layer.backing_store_present_info = &present_info;
ASSERT_EQ(*layers[0], layer);
}
// Layer 1
{
FlutterPlatformView platform_view = *layers[1]->platform_view;
platform_view.struct_size = sizeof(platform_view);