| Flutter Impeller |

Public Member Functions | List of all members
impeller::PlaygroundTest Class Reference

`#include <playground_test.h>`

Inheritance diagram for impeller::PlaygroundTest:

## Public Member Functions
| PlaygroundTest ()
virtual | ~PlaygroundTest ()
void | SetUp () override
void | TearDown () override
PlaygroundBackend | GetBackend () const
std::unique_ptr< fml::Mapping > | OpenAssetAsMapping (std::string asset_name) const override
RuntimeStage::Map | OpenAssetAsRuntimeStage (const char *asset_name) const
std::string | GetWindowTitle () const override
Public Member Functions inherited from impeller::Playground
| Playground (PlaygroundSwitches switches)
virtual | ~Playground ()
void | SetupContext (PlaygroundBackend backend, const PlaygroundSwitches &switches)
void | SetupWindow ()
void | TeardownWindow ()
bool | IsPlaygroundEnabled () const
Point | GetCursorPosition () const
ISize | GetWindowSize () const
Point | GetContentScale () const
Scalar | GetSecondsElapsed () const
| Get the amount of time elapsed from the start of the playground's execution. More...
std::shared_ptr< Context > | GetContext () const
std::shared_ptr< Context > | MakeContext () const
bool | OpenPlaygroundHere (const RenderCallback &render_callback)
bool | OpenPlaygroundHere (SinglePassCallback pass_callback)
std::shared_ptr< Texture > | CreateTextureForFixture (const char *fixture_name, bool enable_mipmapping=false) const
std::shared_ptr< Texture > | CreateTextureCubeForFixture (std::array< const char *, 6 > fixture_names) const
fml::Status | SetCapabilities (const std::shared_ptr< Capabilities > &capabilities)
bool | WillRenderSomething () const
| Returns true if `OpenPlaygroundHere` will actually render anything. More...
GLProcAddressResolver | CreateGLProcAddressResolver () const

## Additional Inherited Members
Public Types inherited from impeller::Playground
using | SinglePassCallback = std::function< bool(RenderPass &pass)>
using | RenderCallback = std::function< bool(RenderTarget &render_target)>
using | GLProcAddressResolver = std::function< void *(const char *proc_name)>
Static Public Member Functions inherited from impeller::Playground
static bool | ShouldOpenNewPlaygrounds ()
static std::shared_ptr< CompressedImage > | LoadFixtureImageCompressed (std::shared_ptr< fml::Mapping > mapping)
static std::optional< DecompressedImage > | DecodeImageRGBA (const std::shared_ptr< CompressedImage > &compressed)
static std::shared_ptr< Texture > | CreateTextureForMapping (const std::shared_ptr< Context > &context, std::shared_ptr< fml::Mapping > mapping, bool enable_mipmapping=false)
static bool | SupportsBackend (PlaygroundBackend backend)
Protected Member Functions inherited from impeller::Playground
void | SetWindowSize (ISize size)
Protected Attributes inherited from impeller::Playground
const PlaygroundSwitches | switches_

## Detailed Description

Definition at line 21 of file playground_test.h.

## Constructor & Destructor Documentation

## ◆ PlaygroundTest()

impeller::PlaygroundTest::PlaygroundTest | ( |  | ) |

Definition at line 13 of file playground_test.cc.

14 : Playground(PlaygroundSwitches{flutter::testing::GetArgsForProcess()}) {
15 ImpellerValidationErrorsSetCallback(
16 [](const char* message, const char* file, int line) -> bool {
17 // GTEST_MESSAGE_AT_ can only be used in a function that returns void.
18 // Hence the goofy lambda. The failure message and location will still
19 // be correct however.
20 //
21 // https://google.github.io/googletest/advanced.html#assertion-placement
22 [message, file, line]() -> void {
23 GTEST_MESSAGE_AT_(file, line, "Impeller Validation Error",
24 ::testing::TestPartResult::kFatalFailure)
25 << message;
26 }();
27 return true;
28 });
29 }

## ◆ ~PlaygroundTest()

impeller::PlaygroundTest::~PlaygroundTest | ( |  | ) |
| virtual

Reimplemented in impeller::interop::testing::PlaygroundTest.

Definition at line 31 of file playground_test.cc.

31 {
32 ImpellerValidationErrorsSetCallback(nullptr);
33 }

References impeller::ImpellerValidationErrorsSetCallback().

## Member Function Documentation

## ◆ GetBackend()

PlaygroundBackend impeller::PlaygroundTest::GetBackend | ( |  | ) | const

Definition at line 72 of file playground_test.cc.

72 {
73 return GetParam();
74 }

Referenced by impeller::interop::testing::PlaygroundTest::CreateContext(), and GetWindowTitle().

## ◆ GetWindowTitle()

std::string impeller::PlaygroundTest::GetWindowTitle | ( |  | ) | const
| override virtual

Implements impeller::Playground.

Definition at line 97 of file playground_test.cc.

97 {
98 std::stringstream stream;
99 stream << "Impeller Playground for '"
100 << flutter::testing::GetCurrentTestName() << "' ";
101 switch (GetBackend()) {
102 case PlaygroundBackend::kMetal:
103 break;
104 case PlaygroundBackend::kOpenGLES:
105 if (switches_.use_angle) {
106 stream << " (Angle) ";
107 }
108 break;
109 case PlaygroundBackend::kVulkan:
110 if (switches_.use_swiftshader) {
111 stream << " (SwiftShader) ";
112 }
113 break;
114 }
115 stream << " (Press ESC to quit)";
116 return stream.str();
117 }

References GetBackend(), impeller::kMetal, impeller::kOpenGLES, impeller::kVulkan, impeller::Playground::switches_, impeller::PlaygroundSwitches::use_angle, and impeller::PlaygroundSwitches::use_swiftshader.

## ◆ OpenAssetAsMapping()

std::unique_ptr< fml::Mapping > impeller::PlaygroundTest::OpenAssetAsMapping | ( | std::string | asset_name | ) | const
| override virtual

Implements impeller::Playground.

Definition at line 81 of file playground_test.cc.

82 {
83 return flutter::testing::OpenFixtureAsMapping(asset_name);
84 }

## ◆ OpenAssetAsRuntimeStage()

RuntimeStage::Map impeller::PlaygroundTest::OpenAssetAsRuntimeStage | ( | const char * | asset_name | ) | const

Definition at line 86 of file playground_test.cc.

87 {
88 const std::shared_ptr<fml::Mapping> fixture =
89 flutter::testing::OpenFixtureAsMapping(asset_name);
90 if (!fixture || fixture->GetSize() == 0) {
91 return {};
92 }
93 return RuntimeStage::DecodeRuntimeStages(fixture);
94 }

References impeller::RuntimeStage::DecodeRuntimeStages().

## ◆ SetUp()

void impeller::PlaygroundTest::SetUp | ( |  | ) |
| override

Definition at line 45 of file playground_test.cc.

45 {
46 if (!Playground::SupportsBackend(GetParam())) {
47 GTEST_SKIP() << "Playground doesn't support this backend type.";
48 return;
49 }
50
51 if (!Playground::ShouldOpenNewPlaygrounds()) {
52 GTEST_SKIP() << "Skipping due to user action.";
53 return;
54 }
55
56 // Test names that end with "WideGamut" will render with wide gamut support.
57 std::string test_name = flutter::testing::GetCurrentTestName();
58 PlaygroundSwitches switches = switches_;
59 switches.enable_wide_gamut =
60 test_name.find("WideGamut/") != std::string::npos;
61
62 if (switches.enable_wide_gamut && (GetParam() != PlaygroundBackend::kMetal ||
63 !DoesSupportWideGamutTests())) {
64 GTEST_SKIP() << "This backend doesn't yet support wide gamut.";
65 return;
66 }
67
68 SetupContext(GetParam(), switches);
69 SetupWindow();
70 }

References impeller::PlaygroundSwitches::enable_wide_gamut, impeller::kMetal, impeller::Playground::SetupContext(), impeller::Playground::SetupWindow(), impeller::Playground::ShouldOpenNewPlaygrounds(), impeller::Playground::SupportsBackend(), and impeller::Playground::switches_.

Referenced by impeller::interop::testing::PlaygroundTest::SetUp().

## ◆ TearDown()

void impeller::PlaygroundTest::TearDown | ( |  | ) |
| override

Definition at line 76 of file playground_test.cc.

76 {
77 TeardownWindow();
78 }

References impeller::Playground::TeardownWindow().

Referenced by impeller::AiksPlayground::TearDown(), and impeller::interop::testing::PlaygroundTest::TearDown().

The documentation for this class was generated from the following files:

- impeller/playground/playground_test.h
- impeller/playground/playground_test.cc

impeller::Playground::ShouldOpenNewPlaygrounds
static bool ShouldOpenNewPlaygrounds()
Definition: playground.cc:160
impeller::PlaygroundBackend::kVulkan
@ kVulkan
impeller::RuntimeStage::DecodeRuntimeStages
static Map DecodeRuntimeStages(const std::shared_ptr< fml::Mapping > &payload)
Definition: runtime_stage.cc:61
impeller::PlaygroundBackend::kMetal
@ kMetal
impeller::PlaygroundSwitches::enable_wide_gamut
bool enable_wide_gamut
Definition: switches.h:35
impeller::PlaygroundSwitches::use_swiftshader
bool use_swiftshader
Definition: switches.h:27
impeller::Playground::SetupWindow
void SetupWindow()
Definition: playground.cc:137
impeller::Playground::switches_
const PlaygroundSwitches switches_
Definition: playground.h:121
impeller::Playground::SetupContext
void SetupContext(PlaygroundBackend backend, const PlaygroundSwitches &switches)
Definition: playground.cc:124
impeller::PlaygroundSwitches::use_angle
bool use_angle
Definition: switches.h:33
impeller::PlaygroundBackend::kOpenGLES
@ kOpenGLES
impeller::Playground::SupportsBackend
static bool SupportsBackend(PlaygroundBackend backend)
Definition: playground.cc:100
impeller::Playground::TeardownWindow
void TeardownWindow()
Definition: playground.cc:150
impeller::Playground::Playground
Playground(PlaygroundSwitches switches)
Definition: playground.cc:83
impeller::PlaygroundTest::GetBackend
PlaygroundBackend GetBackend() const
Definition: playground_test.cc:72
impeller::ImpellerValidationErrorsSetCallback
void ImpellerValidationErrorsSetCallback(ValidationFailureCallback callback)
Sets a callback that callers (usually tests) can set to intercept validation failures.
Definition: validation.cc:21