Flutter Impeller
golden_playground_test_mac.cc
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1 // Copyright 2013 The Flutter 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 <dlfcn.h>
6 #include <filesystem>
7 #include <memory>
8 
10 
15 #include "flutter/third_party/abseil-cpp/absl/base/no_destructor.h"
18 
19 #define GLFW_INCLUDE_NONE
20 #include "third_party/glfw/include/GLFW/glfw3.h"
21 
22 namespace impeller {
23 
24 namespace {
25 std::unique_ptr<PlaygroundImpl> MakeVulkanPlayground(bool enable_validations) {
26  FML_CHECK(::glfwInit() == GLFW_TRUE);
27  PlaygroundSwitches playground_switches;
28  playground_switches.enable_vulkan_validation = enable_validations;
30  playground_switches);
31 }
32 
33 // Returns a static instance to a playground that can be used across tests.
34 const std::unique_ptr<PlaygroundImpl>& GetSharedVulkanPlayground(
35  bool enable_validations) {
36  if (enable_validations) {
37  static absl::NoDestructor<std::unique_ptr<PlaygroundImpl>>
38  vulkan_validation_playground(
39  MakeVulkanPlayground(/*enable_validations=*/true));
40  // TODO(https://github.com/flutter/flutter/issues/142237): This can be
41  // removed when the thread local storage is removed.
42  static fml::ScopedCleanupClosure context_cleanup(
43  [&] { (*vulkan_validation_playground)->GetContext()->Shutdown(); });
44  return *vulkan_validation_playground;
45  } else {
46  static absl::NoDestructor<std::unique_ptr<PlaygroundImpl>>
47  vulkan_playground(MakeVulkanPlayground(/*enable_validations=*/false));
48  // TODO(https://github.com/flutter/flutter/issues/142237): This can be
49  // removed when the thread local storage is removed.
50  static fml::ScopedCleanupClosure context_cleanup(
51  [&] { (*vulkan_playground)->GetContext()->Shutdown(); });
52  return *vulkan_playground;
53  }
54 }
55 } // namespace
56 
57 #define IMP_AIKSTEST(name) \
58  "impeller_Play_AiksTest_" #name "_Metal", \
59  "impeller_Play_AiksTest_" #name "_OpenGLES", \
60  "impeller_Play_AiksTest_" #name "_Vulkan"
61 
62 // If you add a new playground test to the aiks unittests and you do not want it
63 // to also be a golden test, then add the test name here.
64 static const std::vector<std::string> kSkipTests = {
65  // TextRotated is flakey and we can't seem to get it to stabilize on Skia
66  // Gold.
67  IMP_AIKSTEST(TextRotated),
68  // Runtime stage based tests get confused with a Metal context.
69  "impeller_Play_AiksTest_CanRenderClippedRuntimeEffects_Vulkan",
70 };
71 
72 namespace {
73 std::string GetTestName() {
74  std::string suite_name =
75  ::testing::UnitTest::GetInstance()->current_test_suite()->name();
76  std::string test_name =
77  ::testing::UnitTest::GetInstance()->current_test_info()->name();
78  std::stringstream ss;
79  ss << "impeller_" << suite_name << "_" << test_name;
80  std::string result = ss.str();
81  // Make sure there are no slashes in the test name.
82  std::replace(result.begin(), result.end(), '/', '_');
83  return result;
84 }
85 
86 std::string GetGoldenFilename() {
87  return GetTestName() + ".png";
88 }
89 
90 bool SaveScreenshot(std::unique_ptr<testing::Screenshot> screenshot) {
91  if (!screenshot || !screenshot->GetBytes()) {
92  FML_LOG(ERROR) << "Failed to collect screenshot for test " << GetTestName();
93  return false;
94  }
95  std::string test_name = GetTestName();
96  std::string filename = GetGoldenFilename();
98  test_name, filename, screenshot->GetWidth(), screenshot->GetHeight());
99  if (!screenshot->WriteToPNG(
101  FML_LOG(ERROR) << "Failed to write screenshot to " << filename;
102  return false;
103  }
104  return true;
105 }
106 
107 } // namespace
108 
110  std::unique_ptr<PlaygroundImpl> test_vulkan_playground;
111  std::unique_ptr<PlaygroundImpl> test_opengl_playground;
112  std::unique_ptr<testing::Screenshotter> screenshotter;
113  ISize window_size = ISize{1024, 768};
114 };
115 
117  : typographer_context_(TypographerContextSkia::Make()),
119 
121 
123  std::shared_ptr<TypographerContext> typographer_context) {
124  typographer_context_ = std::move(typographer_context);
125 };
126 
128  ASSERT_FALSE(dlopen("/usr/local/lib/libMoltenVK.dylib", RTLD_NOLOAD));
129 }
130 
132  std::filesystem::path testing_assets_path =
133  flutter::testing::GetTestingAssetsPath();
134  std::filesystem::path target_path = testing_assets_path.parent_path()
135  .parent_path()
136  .parent_path()
137  .parent_path();
138  std::filesystem::path icd_path = target_path / "vk_swiftshader_icd.json";
139  setenv("VK_ICD_FILENAMES", icd_path.c_str(), 1);
140 
141  switch (GetParam()) {
143  pimpl_->screenshotter = std::make_unique<testing::MetalScreenshotter>();
144  break;
146  const std::unique_ptr<PlaygroundImpl>& playground =
147  GetSharedVulkanPlayground(/*enable_validations=*/true);
148  pimpl_->screenshotter =
149  std::make_unique<testing::VulkanScreenshotter>(playground);
150  break;
151  }
153  FML_CHECK(::glfwInit() == GLFW_TRUE);
154  PlaygroundSwitches playground_switches;
155  playground_switches.use_angle = true;
156  pimpl_->test_opengl_playground = PlaygroundImpl::Create(
157  PlaygroundBackend::kOpenGLES, playground_switches);
158  pimpl_->screenshotter = std::make_unique<testing::VulkanScreenshotter>(
159  pimpl_->test_opengl_playground);
160  break;
161  }
162  }
163  if (GetParam() == PlaygroundBackend::kMetal) {
164  pimpl_->screenshotter = std::make_unique<testing::MetalScreenshotter>();
165  } else if (GetParam() == PlaygroundBackend::kVulkan) {
166  const std::unique_ptr<PlaygroundImpl>& playground =
167  GetSharedVulkanPlayground(/*enable_validations=*/true);
168  pimpl_->screenshotter =
169  std::make_unique<testing::VulkanScreenshotter>(playground);
170  }
171 
172  std::string test_name = GetTestName();
173  if (std::find(kSkipTests.begin(), kSkipTests.end(), test_name) !=
174  kSkipTests.end()) {
175  GTEST_SKIP_(
176  "GoldenPlaygroundTest doesn't support interactive playground tests "
177  "yet.");
178  }
179 
181  "gpu_string", GetContext()->DescribeGpuModel());
182 }
183 
185  return GetParam();
186 }
187 
189  AiksContext renderer(GetContext(), typographer_context_);
190 
191  auto screenshot = pimpl_->screenshotter->MakeScreenshot(renderer, picture,
192  pimpl_->window_size);
193  return SaveScreenshot(std::move(screenshot));
194 }
195 
198  callback) { // NOLINT(performance-unnecessary-value-param)
199  AiksContext renderer(GetContext(), typographer_context_);
200 
201  std::optional<Picture> picture;
202  std::unique_ptr<testing::Screenshot> screenshot;
203  for (int i = 0; i < 2; ++i) {
204  picture = callback(renderer);
205  if (!picture.has_value()) {
206  return false;
207  }
208  screenshot = pimpl_->screenshotter->MakeScreenshot(
209  renderer, picture.value(), pimpl_->window_size);
210  }
211 
212  return SaveScreenshot(std::move(screenshot));
213 }
214 
215 bool GoldenPlaygroundTest::ImGuiBegin(const char* name,
216  bool* p_open,
217  ImGuiWindowFlags flags) {
218  return false;
219 }
220 
222  const char* fixture_name,
223  bool enable_mipmapping) const {
224  std::shared_ptr<fml::Mapping> mapping =
225  flutter::testing::OpenFixtureAsMapping(fixture_name);
226  auto result = Playground::CreateTextureForMapping(GetContext(), mapping,
227  enable_mipmapping);
228  if (result) {
229  result->SetLabel(fixture_name);
230  }
231  return result;
232 }
233 
235  const char* asset_name) const {
236  const std::shared_ptr<fml::Mapping> fixture =
237  flutter::testing::OpenFixtureAsMapping(asset_name);
238  if (!fixture || fixture->GetSize() == 0) {
239  return {};
240  }
241  return RuntimeStage::DecodeRuntimeStages(fixture);
242 }
243 
244 std::shared_ptr<Context> GoldenPlaygroundTest::GetContext() const {
245  return pimpl_->screenshotter->GetPlayground().GetContext();
246 }
247 
248 std::shared_ptr<Context> GoldenPlaygroundTest::MakeContext() const {
249  if (GetParam() == PlaygroundBackend::kMetal) {
250  /// On Metal we create a context for each test.
251  return GetContext();
252  } else if (GetParam() == PlaygroundBackend::kVulkan) {
253  bool enable_vulkan_validations = true;
254  FML_CHECK(!pimpl_->test_vulkan_playground)
255  << "We don't support creating multiple contexts for one test";
256  pimpl_->test_vulkan_playground =
257  MakeVulkanPlayground(enable_vulkan_validations);
258  pimpl_->screenshotter = std::make_unique<testing::VulkanScreenshotter>(
259  pimpl_->test_vulkan_playground);
260  return pimpl_->test_vulkan_playground->GetContext();
261  } else {
262  /// On OpenGL we create a context for each test.
263  return GetContext();
264  }
265 }
266 
268  return pimpl_->screenshotter->GetPlayground().GetContentScale();
269 }
270 
272  return 0.0f;
273 }
274 
276  return pimpl_->window_size;
277 }
278 
279 void GoldenPlaygroundTest::GoldenPlaygroundTest::SetWindowSize(ISize size) {
280  pimpl_->window_size = size;
281 }
282 
284  const std::shared_ptr<Capabilities>& capabilities) {
285  return pimpl_->screenshotter->GetPlayground().SetCapabilities(capabilities);
286 }
287 
288 } // namespace impeller
impeller::GoldenPlaygroundTest::ImGuiBegin
static bool ImGuiBegin(const char *name, bool *p_open, ImGuiWindowFlags flags)
Definition: golden_playground_test_mac.cc:215
impeller::GoldenPlaygroundTest::GetContentScale
Point GetContentScale() const
Definition: golden_playground_test_mac.cc:267
impeller::GoldenPlaygroundTest::AiksPlaygroundCallback
std::function< std::optional< Picture >(AiksContext &renderer)> AiksPlaygroundCallback
Definition: golden_playground_test.h:27
impeller::PlaygroundBackend::kVulkan
@ kVulkan
impeller::GoldenPlaygroundTest::SetCapabilities
fml::Status SetCapabilities(const std::shared_ptr< Capabilities > &capabilities)
Definition: golden_playground_test_mac.cc:283
impeller::Scalar
float Scalar
Definition: scalar.h:18
impeller::AiksContext
Definition: aiks_context.h:20
vulkan_screenshotter.h
impeller::GoldenPlaygroundTest::MakeContext
std::shared_ptr< Context > MakeContext() const
Definition: golden_playground_test_mac.cc:248
golden_digest.h
impeller::RuntimeStage::DecodeRuntimeStages
static Map DecodeRuntimeStages(const std::shared_ptr< fml::Mapping > &payload)
Definition: runtime_stage.cc:60
impeller::PlaygroundBackend::kMetal
@ kMetal
impeller::PlaygroundBackend
PlaygroundBackend
Definition: playground.h:29
impeller::GoldenPlaygroundTest::OpenPlaygroundHere
bool OpenPlaygroundHere(Picture picture)
Definition: golden_playground_test_mac.cc:188
typographer_context.h
picture.h
impeller::testing::GoldenDigest::AddImage
void AddImage(const std::string &test_name, const std::string &filename, int32_t width, int32_t height)
Definition: golden_digest.cc:34
impeller::GoldenPlaygroundTest::GetContext
std::shared_ptr< Context > GetContext() const
Definition: golden_playground_test_mac.cc:244
impeller::GoldenPlaygroundTest::GoldenPlaygroundTestImpl
Definition: golden_playground_test_mac.cc:109
IMP_AIKSTEST
#define IMP_AIKSTEST(name)
Definition: golden_playground_test_mac.cc:57
impeller::GoldenPlaygroundTest::~GoldenPlaygroundTest
~GoldenPlaygroundTest() override
typographer_context_skia.h
impeller::GoldenPlaygroundTest::SetTypographerContext
void SetTypographerContext(std::shared_ptr< TypographerContext > typographer_context)
Definition: golden_playground_test_mac.cc:122
impeller::Picture
Definition: picture.h:20
impeller::TSize< int64_t >
impeller::GoldenPlaygroundTest::GoldenPlaygroundTest
GoldenPlaygroundTest()
Definition: golden_playground_test_mac.cc:116
impeller::GoldenPlaygroundTest::GetBackend
PlaygroundBackend GetBackend() const
Definition: golden_playground_test_mac.cc:184
impeller::kSkipTests
static const std::vector< std::string > kSkipTests
Definition: golden_playground_test_mac.cc:64
impeller::GoldenPlaygroundTest::GoldenPlaygroundTestImpl::test_vulkan_playground
std::unique_ptr< PlaygroundImpl > test_vulkan_playground
Definition: golden_playground_test_mac.cc:110
impeller::GoldenPlaygroundTest::SetUp
void SetUp()
Definition: golden_playground_test_mac.cc:131
impeller::GoldenPlaygroundTest::GoldenPlaygroundTestImpl::screenshotter
std::unique_ptr< testing::Screenshotter > screenshotter
Definition: golden_playground_test_mac.cc:112
impeller::GoldenPlaygroundTest
Definition: golden_playground_test.h:23
impeller::testing::WorkingDirectory::GetFilenamePath
std::string GetFilenamePath(const std::string &filename) const
Definition: working_directory.cc:23
impeller::GoldenPlaygroundTest::CreateTextureForFixture
std::shared_ptr< Texture > CreateTextureForFixture(const char *fixture_name, bool enable_mipmapping=false) const
Definition: golden_playground_test_mac.cc:221
golden_playground_test.h
impeller::TypographerContextSkia
Definition: typographer_context_skia.h:12
impeller::PlaygroundImpl::Create
static std::unique_ptr< PlaygroundImpl > Create(PlaygroundBackend backend, PlaygroundSwitches switches)
Definition: playground_impl.cc:25
impeller::PlaygroundSwitches::use_angle
bool use_angle
Definition: switches.h:34
impeller::PlaygroundBackend::kOpenGLES
@ kOpenGLES
impeller::Playground::CreateTextureForMapping
static std::shared_ptr< Texture > CreateTextureForMapping(const std::shared_ptr< Context > &context, std::shared_ptr< fml::Mapping > mapping, bool enable_mipmapping=false)
Definition: playground.cc:436
impeller::GoldenPlaygroundTest::GetSecondsElapsed
Scalar GetSecondsElapsed() const
Definition: golden_playground_test_mac.cc:271
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Definition: switches.h:16
impeller::GoldenPlaygroundTest::TearDown
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Definition: golden_playground_test_mac.cc:127
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static GoldenDigest * Instance()
Definition: golden_digest.cc:18
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void AddDimension(const std::string &name, const std::string &value)
Definition: golden_digest.cc:27
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Definition: working_directory.cc:16
impeller::GoldenPlaygroundTest::GoldenPlaygroundTestImpl::test_opengl_playground
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Definition: golden_playground_test_mac.cc:111
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Definition: golden_playground_test_mac.cc:113
metal_screenshotter.h
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Definition: aiks_blur_unittests.cc:20
impeller::GoldenPlaygroundTest::GetWindowSize
ISize GetWindowSize() const
Definition: golden_playground_test_mac.cc:275
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RuntimeStage::Map OpenAssetAsRuntimeStage(const char *asset_name) const
Definition: golden_playground_test_mac.cc:234
impeller::RuntimeStage::Map
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Definition: runtime_stage.h:23