golden_playground_test_mac.cc File Reference

#include <dlfcn.h>
#include <filesystem>
#include <memory>
#include "flutter/impeller/golden_tests/golden_playground_test.h"
#include "flutter/impeller/aiks/picture.h"
#include "flutter/impeller/golden_tests/golden_digest.h"
#include "flutter/impeller/golden_tests/metal_screenshotter.h"
#include "flutter/impeller/golden_tests/vulkan_screenshotter.h"
#include "flutter/third_party/abseil-cpp/absl/base/no_destructor.h"
#include "impeller/typographer/backends/skia/typographer_context_skia.h"
#include "impeller/typographer/typographer_context.h"
#include "third_party/glfw/include/GLFW/glfw3.h"

Go to the source code of this file.

Classes
struct	impeller::GoldenPlaygroundTest::GoldenPlaygroundTestImpl

Namespaces
namespace	impeller

Macros
#define	GLFW_INCLUDE_NONE
#define	IMP_AIKSTEST(name)

Variables
static const std::vector< std::string >	impeller::kSkipTests

Macro Definition Documentation

GLFW_INCLUDE_NONE

#define GLFW_INCLUDE_NONE

Definition at line 19 of file golden_playground_test_mac.cc.

IMP_AIKSTEST

#define IMP_AIKSTEST

(

name

)

Value:

  "impeller_Play_AiksTest_" #name "_Metal",        \
      "impeller_Play_AiksTest_" #name "_OpenGLES", \
      "impeller_Play_AiksTest_" #name "_Vulkan"

Definition at line 57 of file golden_playground_test_mac.cc.

                                               {
    // TextRotated is flakey and we can't seem to get it to stabilize on Skia
    // Gold.
    IMP_AIKSTEST(TextRotated),
    // Runtime stage based tests get confused with a Metal context.
    "impeller_Play_AiksTest_CanRenderClippedRuntimeEffects_Vulkan",
};
 
namespace {
std::string GetTestName() {
  std::string suite_name =
      ::testing::UnitTest::GetInstance()->current_test_suite()->name();
  std::string test_name =
      ::testing::UnitTest::GetInstance()->current_test_info()->name();
  std::stringstream ss;
  ss << "impeller_" << suite_name << "_" << test_name;
  std::string result = ss.str();
  // Make sure there are no slashes in the test name.
  std::replace(result.begin(), result.end(), '/', '_');
  return result;
}
 
std::string GetGoldenFilename() {
  return GetTestName() + ".png";
}
 
bool SaveScreenshot(std::unique_ptr<testing::Screenshot> screenshot) {
  if (!screenshot || !screenshot->GetBytes()) {
    FML_LOG(ERROR) << "Failed to collect screenshot for test " << GetTestName();
    return false;
  }
  std::string test_name = GetTestName();
  std::string filename = GetGoldenFilename();
  testing::GoldenDigest::Instance()->AddImage(
      test_name, filename, screenshot->GetWidth(), screenshot->GetHeight());
  if (!screenshot->WriteToPNG(
          testing::WorkingDirectory::Instance()->GetFilenamePath(filename))) {
    FML_LOG(ERROR) << "Failed to write screenshot to " << filename;
    return false;
  }
  return true;
}
 
}  // namespace
 
struct GoldenPlaygroundTest::GoldenPlaygroundTestImpl {
  std::unique_ptr<PlaygroundImpl> test_vulkan_playground;
  std::unique_ptr<PlaygroundImpl> test_opengl_playground;
  std::unique_ptr<testing::Screenshotter> screenshotter;
  ISize window_size = ISize{1024, 768};
};
 
GoldenPlaygroundTest::GoldenPlaygroundTest()
    : typographer_context_(TypographerContextSkia::Make()),
      pimpl_(new GoldenPlaygroundTest::GoldenPlaygroundTestImpl()) {}
 
GoldenPlaygroundTest::~GoldenPlaygroundTest() = default;
 
void GoldenPlaygroundTest::SetTypographerContext(
    std::shared_ptr<TypographerContext> typographer_context) {
  typographer_context_ = std::move(typographer_context);
};
 
void GoldenPlaygroundTest::TearDown() {
  ASSERT_FALSE(dlopen("/usr/local/lib/libMoltenVK.dylib", RTLD_NOLOAD));
}
 
namespace {
bool DoesSupportWideGamutTests() {
#ifdef __arm64__
  return true;
#else
  return false;
#endif
}
}  // namespace
 
void GoldenPlaygroundTest::SetUp() {
  std::filesystem::path testing_assets_path =
      flutter::testing::GetTestingAssetsPath();
  std::filesystem::path target_path = testing_assets_path.parent_path()
                                          .parent_path()
                                          .parent_path()
                                          .parent_path();
  std::filesystem::path icd_path = target_path / "vk_swiftshader_icd.json";
  setenv("VK_ICD_FILENAMES", icd_path.c_str(), 1);
 
  std::string test_name = GetTestName();
  bool enable_wide_gamut = test_name.find("WideGamut_") != std::string::npos;
  switch (GetParam()) {
    case PlaygroundBackend::kMetal:
      if (!DoesSupportWideGamutTests()) {
        GTEST_SKIP_(
            "This metal device doesn't support wide gamut golden tests.");
      }
      pimpl_->screenshotter =
          std::make_unique<testing::MetalScreenshotter>(enable_wide_gamut);
      break;
    case PlaygroundBackend::kVulkan: {
      if (enable_wide_gamut) {
        GTEST_SKIP_("Vulkan doesn't support wide gamut golden tests.");
      }
      const std::unique_ptr<PlaygroundImpl>& playground =
          GetSharedVulkanPlayground(/*enable_validations=*/true);
      pimpl_->screenshotter =
          std::make_unique<testing::VulkanScreenshotter>(playground);
      break;
    }
    case PlaygroundBackend::kOpenGLES: {
      if (enable_wide_gamut) {
        GTEST_SKIP_("OpenGLES doesn't support wide gamut golden tests.");
      }
      FML_CHECK(::glfwInit() == GLFW_TRUE);
      PlaygroundSwitches playground_switches;
      playground_switches.use_angle = true;
      pimpl_->test_opengl_playground = PlaygroundImpl::Create(
          PlaygroundBackend::kOpenGLES, playground_switches);
      pimpl_->screenshotter = std::make_unique<testing::VulkanScreenshotter>(
          pimpl_->test_opengl_playground);
      break;
    }
  }
 
  if (std::find(kSkipTests.begin(), kSkipTests.end(), test_name) !=
      kSkipTests.end()) {
    GTEST_SKIP_(
        "GoldenPlaygroundTest doesn't support interactive playground tests "
        "yet.");
  }
 
  testing::GoldenDigest::Instance()->AddDimension(
      "gpu_string", GetContext()->DescribeGpuModel());
}
 
PlaygroundBackend GoldenPlaygroundTest::GetBackend() const {
  return GetParam();
}
 
bool GoldenPlaygroundTest::OpenPlaygroundHere(Picture picture) {
  AiksContext renderer(GetContext(), typographer_context_);
 
  auto screenshot = pimpl_->screenshotter->MakeScreenshot(renderer, picture,
                                                          pimpl_->window_size);
  return SaveScreenshot(std::move(screenshot));
}
 
bool GoldenPlaygroundTest::OpenPlaygroundHere(
    AiksPlaygroundCallback
        callback) {  // NOLINT(performance-unnecessary-value-param)
  AiksContext renderer(GetContext(), typographer_context_);
 
  std::optional<Picture> picture;
  std::unique_ptr<testing::Screenshot> screenshot;
  for (int i = 0; i < 2; ++i) {
    picture = callback(renderer);
    if (!picture.has_value()) {
      return false;
    }
    screenshot = pimpl_->screenshotter->MakeScreenshot(
        renderer, picture.value(), pimpl_->window_size);
  }
 
  return SaveScreenshot(std::move(screenshot));
}
 
bool GoldenPlaygroundTest::ImGuiBegin(const char* name,
                                      bool* p_open,
                                      ImGuiWindowFlags flags) {
  return false;
}
 
std::shared_ptr<Texture> GoldenPlaygroundTest::CreateTextureForFixture(
    const char* fixture_name,
    bool enable_mipmapping) const {
  std::shared_ptr<fml::Mapping> mapping =
      flutter::testing::OpenFixtureAsMapping(fixture_name);
  auto result = Playground::CreateTextureForMapping(GetContext(), mapping,
                                                    enable_mipmapping);
  if (result) {
    result->SetLabel(fixture_name);
  }
  return result;
}
 
RuntimeStage::Map GoldenPlaygroundTest::OpenAssetAsRuntimeStage(
    const char* asset_name) const {
  const std::shared_ptr<fml::Mapping> fixture =
      flutter::testing::OpenFixtureAsMapping(asset_name);
  if (!fixture || fixture->GetSize() == 0) {
    return {};
  }
  return RuntimeStage::DecodeRuntimeStages(fixture);
}
 
std::shared_ptr<Context> GoldenPlaygroundTest::GetContext() const {
  return pimpl_->screenshotter->GetPlayground().GetContext();
}
 
std::shared_ptr<Context> GoldenPlaygroundTest::MakeContext() const {
  if (GetParam() == PlaygroundBackend::kMetal) {
    /// On Metal we create a context for each test.
    return GetContext();
  } else if (GetParam() == PlaygroundBackend::kVulkan) {
    bool enable_vulkan_validations = true;
    FML_CHECK(!pimpl_->test_vulkan_playground)
        << "We don't support creating multiple contexts for one test";
    pimpl_->test_vulkan_playground =
        MakeVulkanPlayground(enable_vulkan_validations);
    pimpl_->screenshotter = std::make_unique<testing::VulkanScreenshotter>(
        pimpl_->test_vulkan_playground);
    return pimpl_->test_vulkan_playground->GetContext();
  } else {
    /// On OpenGL we create a context for each test.
    return GetContext();
  }
}
 
Point GoldenPlaygroundTest::GetContentScale() const {
  return pimpl_->screenshotter->GetPlayground().GetContentScale();
}
 
Scalar GoldenPlaygroundTest::GetSecondsElapsed() const {
  return 0.0f;
}
 
ISize GoldenPlaygroundTest::GetWindowSize() const {
  return pimpl_->window_size;
}
 
void GoldenPlaygroundTest::GoldenPlaygroundTest::SetWindowSize(ISize size) {
  pimpl_->window_size = size;
}
 
fml::Status GoldenPlaygroundTest::SetCapabilities(
    const std::shared_ptr<Capabilities>& capabilities) {
  return pimpl_->screenshotter->GetPlayground().SetCapabilities(capabilities);
}
 
}  // namespace impeller