Classes
class	ContextSub

class	FlagObject

class	TestObject

class	PlaygroundTest

Typedefs
using	InteropPlaygroundTest = PlaygroundTest

Functions
	INSTANTIATE_PLAYGROUND_SUITE (InteropPlaygroundTest)

	TEST_P (InteropPlaygroundTest, CanCreateContext)

	TEST_P (InteropPlaygroundTest, CanCreateDisplayListBuilder)

	TEST_P (InteropPlaygroundTest, CanCreateSurface)

	TEST_P (InteropPlaygroundTest, CanDrawRect)

	TEST_P (InteropPlaygroundTest, CanDrawImage)

	TEST_P (InteropPlaygroundTest, CanCreateOpenGLImage)

	TEST_P (InteropPlaygroundTest, ClearsOpenGLStancilStateAfterTransition)

	TEST_P (InteropPlaygroundTest, CanCreateParagraphs)

	TEST_P (InteropPlaygroundTest, CanCreateDecorations)

	TEST_P (InteropPlaygroundTest, CanCreateShapes)

	TEST_P (InteropPlaygroundTest, CanCreateParagraphsWithCustomFont)

static void	DrawTextFrame (const hpp::TypographyContext &tc, hpp::DisplayListBuilder &builder, hpp::ParagraphStyle &p_style, const hpp::Paint &bg, ImpellerColor color, ImpellerTextAlignment align, float x_offset)

	TEST_P (InteropPlaygroundTest, CanRenderTextAlignments)

	TEST_P (InteropPlaygroundTest, CanRenderShadows)

	TEST_P (InteropPlaygroundTest, CanMeasureText)

	TEST_P (InteropPlaygroundTest, CanGetPathBounds)

	TEST_P (InteropPlaygroundTest, CanControlEllipses)

	TEST_P (InteropPlaygroundTest, CanCreateFragmentProgramColorFilters)

	TEST_P (InteropPlaygroundTest, MappingsReleaseTheirDataOnDestruction)

	IMPELLER_DEFINE_HANDLE (FlagHandle)

	IMPELLER_DEFINE_HANDLE (TestHandle)

	TEST (InteropObjectTest, CanCreateScoped)

	TEST (InteropObjectTest, CanCreate)

	TEST (InteropObjectTest, CanCopyAssignMove)

static void	SetupImpellerHPPProcTableOnce ()

static ScopedObject< Surface >	CreateSharedSurface (PlaygroundBackend backend, Context &context, std::shared_ptr< impeller::Surface > shared_surface)

static ScopedObject< Context >	CreateSharedContext (PlaygroundBackend backend, std::shared_ptr< impeller::Context > shared_context)

Typedef Documentation

◆ InteropPlaygroundTest

using impeller::interop::testing::InteropPlaygroundTest = typedef PlaygroundTest

Definition at line 27 of file impeller_unittests.cc.

Function Documentation

◆ CreateSharedContext()

static ScopedObject<Context> impeller::interop::testing::CreateSharedContext	(	PlaygroundBackend	backend,
		std::shared_ptr< impeller::Context >	shared_context
	)

static

Definition at line 151 of file playground_test.cc.

                                                    {
   switch (backend) {
 #if IMPELLER_ENABLE_METAL
     case PlaygroundBackend::kMetal:
     case PlaygroundBackend::kMetalSDF:
       return ContextMTL::Create(shared_context);
 #endif
 #if IMPELLER_ENABLE_OPENGLES
     case PlaygroundBackend::kOpenGLES:
     case PlaygroundBackend::kOpenGLESSDF:
       return ContextGLES::Create(std::move(shared_context));
 #endif
 #if IMPELLER_ENABLE_VULKAN
     case PlaygroundBackend::kVulkan:
       return ContextVK::Create(std::move(shared_context));
 #endif
     default:
       return nullptr;
   }
   FML_UNREACHABLE();
 }

References impeller::interop::ContextMTL::Create(), impeller::interop::ContextVK::Create(), impeller::interop::ContextGLES::Create(), impeller::kMetal, impeller::kMetalSDF, impeller::kOpenGLES, impeller::kOpenGLESSDF, and impeller::kVulkan.

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

◆ CreateSharedSurface()

static ScopedObject<Surface> impeller::interop::testing::CreateSharedSurface	(	PlaygroundBackend	backend,
		Context &	context,
		std::shared_ptr< impeller::Surface >	shared_surface
	)

static

Definition at line 104 of file playground_test.cc.

                                                    {
   switch (backend) {
 #if IMPELLER_ENABLE_METAL
     case PlaygroundBackend::kMetal:
     case PlaygroundBackend::kMetalSDF:
       return Adopt<Surface>(new SurfaceMTL(context, std::move(shared_surface)));
 #endif
  
 #if IMPELLER_ENABLE_OPENGLES
     case PlaygroundBackend::kOpenGLES:
     case PlaygroundBackend::kOpenGLESSDF:
       return Adopt<Surface>(
           new SurfaceGLES(context, std::move(shared_surface)));
 #endif
  
 #if IMPELLER_ENABLE_VULKAN
     case PlaygroundBackend::kVulkan:
       return Adopt<Surface>(new SurfaceVK(context, std::move(shared_surface)));
 #endif
     default:
       return nullptr;
   }
   FML_UNREACHABLE();
 }

References context, impeller::kMetal, impeller::kMetalSDF, impeller::kOpenGLES, impeller::kOpenGLESSDF, and impeller::kVulkan.

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

◆ DrawTextFrame()

static void impeller::interop::testing::DrawTextFrame	(	const hpp::TypographyContext &	tc,
		hpp::DisplayListBuilder &	builder,
		hpp::ParagraphStyle &	p_style,
		const hpp::Paint &	bg,
		ImpellerColor	color,
		ImpellerTextAlignment	align,
		float	x_offset
	)

static

Definition at line 430 of file impeller_unittests.cc.

                                           {
   const char text[] =
       "Lorem ipsum dolor sit amet, consectetur adipiscing elit.";
  
   hpp::Paint fg;
  
   // Draw a box.
   fg.SetColor(color);
   fg.SetDrawStyle(kImpellerDrawStyleStroke);
   ImpellerRect box_rect = {10 + x_offset, 10, 200, 200};
   builder.DrawRect(box_rect, fg);
  
   // Draw text.
   fg.SetDrawStyle(kImpellerDrawStyleFill);
   p_style.SetForeground(fg);
   p_style.SetBackground(bg);
   p_style.SetTextAlignment(align);
  
   hpp::ParagraphBuilder p_builder(tc);
   p_builder.PushStyle(p_style);
   p_builder.AddText(reinterpret_cast<const uint8_t*>(text), sizeof(text));
  
   auto left_p = p_builder.Build(box_rect.width - 20.0);
   ImpellerPoint pt = {20.0f + x_offset, 20.0f};
   float w = left_p.GetMaxWidth();
   float h = left_p.GetHeight();
   builder.DrawParagraph(left_p, pt);
   fg.SetDrawStyle(kImpellerDrawStyleStroke);
  
   // Draw an inner box around the paragraph layout.
   ImpellerRect inner_box_rect = {pt.x, pt.y, w, h};
   builder.DrawRect(inner_box_rect, fg);
 }

References kImpellerDrawStyleFill, kImpellerDrawStyleStroke, ImpellerRect::width, ImpellerPoint::x, and ImpellerPoint::y.

Referenced by TEST_P().

◆ IMPELLER_DEFINE_HANDLE() [1/2]

impeller::interop::testing::IMPELLER_DEFINE_HANDLE ( FlagHandle )

◆ IMPELLER_DEFINE_HANDLE() [2/2]

impeller::interop::testing::IMPELLER_DEFINE_HANDLE ( TestHandle )

◆ INSTANTIATE_PLAYGROUND_SUITE()

impeller::interop::testing::INSTANTIATE_PLAYGROUND_SUITE ( InteropPlaygroundTest )

◆ SetupImpellerHPPProcTableOnce()

static void impeller::interop::testing::SetupImpellerHPPProcTableOnce ( )

static

Definition at line 30 of file playground_test.cc.

                                             {
   static std::once_flag sOnceFlag;
   std::call_once(sOnceFlag, []() {
     std::map<std::string, void*> proc_map;
 #define IMPELLER_HPP_PROC(name) \
   proc_map[#name] = reinterpret_cast<void*>(&name);
     IMPELLER_HPP_EACH_PROC(IMPELLER_HPP_PROC)
 #undef IMPELLER_HPP_PROC
     hpp::gGlobalProcTable.Initialize(
         [&](auto name) { return proc_map.at(name); });
   });
 }

References IMPELLER_HPP_NAMESPACE::gGlobalProcTable, IMPELLER_HPP_EACH_PROC, IMPELLER_HPP_PROC, and IMPELLER_HPP_NAMESPACE::ProcTable::Initialize().

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

◆ TEST() [1/3]

impeller::interop::testing::TEST	(	InteropObjectTest	,
		CanCopyAssignMove
	)

Definition at line 77 of file object_unittests.cc.

                                            {
   auto o = Create<TestObject>(1, 2.3, 'd');
   ASSERT_EQ(o->GetRefCountForTests(), 1u);
   {
     auto o1 = o;  // NOLINT(performance-unnecessary-copy-initialization)
     ASSERT_EQ(o->GetRefCountForTests(), 2u);
     auto o2 = o;  // NOLINT(performance-unnecessary-copy-initialization)
     ASSERT_EQ(o->GetRefCountForTests(), 3u);
     auto o3 = o1;  // NOLINT(performance-unnecessary-copy-initialization)
     ASSERT_EQ(o->GetRefCountForTests(), 4u);
   }
   ASSERT_EQ(o->GetRefCountForTests(), 1u);
  
   {
     auto o1(o);  // NOLINT(performance-unnecessary-copy-initialization)
     ASSERT_EQ(o->GetRefCountForTests(), 2u);
     ASSERT_EQ(o1->GetRefCountForTests(), 2u);
   }
  
   auto move_o = std::move(o);
   ASSERT_EQ(move_o->GetRefCountForTests(), 1u);
 }

◆ TEST() [2/3]

impeller::interop::testing::TEST	(	InteropObjectTest	,
		CanCreate
	)

Definition at line 70 of file object_unittests.cc.

                                    {
   auto object = Create<TestObject>(1, 1.3, 'c');
   ASSERT_EQ(object->GetArg1(), 1);
   ASSERT_EQ(object->GetArg2(), 1.3);
   ASSERT_EQ(object->GetArg3(), 'c');
 }

◆ TEST() [3/3]

impeller::interop::testing::TEST	(	InteropObjectTest	,
		CanCreateScoped
	)

Definition at line 54 of file object_unittests.cc.

                                          {
   bool destructed = false;
   {
     auto object = Adopt(new FlagObject(destructed));  //
   }
   ASSERT_TRUE(destructed);
  
   destructed = false;
   {
     auto object = Ref(new FlagObject(destructed));
     // New objects start with retain count of 1.
     object->Release();
   }
   ASSERT_TRUE(destructed);
 }

References impeller::interop::Adopt(), and impeller::interop::Ref().

◆ TEST_P() [1/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanControlEllipses
	)

Definition at line 636 of file impeller_unittests.cc.

                                                   {
   hpp::TypographyContext context;
   auto style = hpp::ParagraphStyle{};
   style.SetFontSize(50);
   style.SetForeground(hpp::Paint{}.SetColor({.red = 1.0, .alpha = 1.0}));
   const auto text = std::string{"The quick brown fox jumped over the lazy dog"};
   style.SetEllipsis("🐶");
   auto para1 =
       hpp::ParagraphBuilder{context}.PushStyle(style).AddText(text).Build(250);
   style.SetForeground(hpp::Paint{}.SetColor({.green = 1.0, .alpha = 1.0}));
   style.SetEllipsis(nullptr);
   auto para2 =
       hpp::ParagraphBuilder{context}.PushStyle(style).AddText(text).Build(250);
   auto dl = hpp::DisplayListBuilder{}
                 .DrawParagraph(para1, {100, 100})
                 .DrawParagraph(para2, {100, 200})
                 .Build();
   ASSERT_TRUE(
       OpenPlaygroundHere([&](const auto& context, const auto& surface) -> bool {
         hpp::Surface window(surface.GetC());
         window.Draw(dl);
         return true;
       }));
 }

References context.

◆ TEST_P() [2/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanCreateContext
	)

Definition at line 33 of file impeller_unittests.cc.

                                                 {
   auto context = CreateContext();
   ASSERT_TRUE(context);
 }

References context, and impeller::android::testing::CreateContext().

◆ TEST_P() [3/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanCreateDecorations
	)

Definition at line 297 of file impeller_unittests.cc.

                                                     {
   hpp::TypographyContext context;
   auto para =
       hpp::ParagraphBuilder(context)
           .PushStyle(
               hpp::ParagraphStyle{}
                   .SetForeground(hpp::Paint{}.SetColor({1.0, 0.0, 0.0, 1.0}))
                   .SetFontSize(150.0f)
                   .SetTextDecoration(ImpellerTextDecoration{
                       .types = kImpellerTextDecorationTypeLineThrough |
                                kImpellerTextDecorationTypeUnderline,
                       .color = ImpellerColor{0.0, 1.0, 0.0, 0.75},
                       .style = kImpellerTextDecorationStyleWavy,
                       .thickness_multiplier = 1.5,
                   }))
           .AddText(std::string{"Holy text decorations Batman!"})
           .Build(900);
   auto dl = hpp::DisplayListBuilder{}.DrawParagraph(para, {100, 100}).Build();
   ASSERT_TRUE(
       OpenPlaygroundHere([&](const auto& context, const auto& surface) -> bool {
         hpp::Surface window(surface.GetC());
         window.Draw(dl);
         return true;
       }));
 }

References context, kImpellerTextDecorationStyleWavy, kImpellerTextDecorationTypeLineThrough, kImpellerTextDecorationTypeUnderline, and ImpellerTextDecoration::types.

◆ TEST_P() [4/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanCreateDisplayListBuilder
	)

Definition at line 38 of file impeller_unittests.cc.

                                                            {
   hpp::DisplayListBuilder builder;
   ASSERT_TRUE(builder);
   ASSERT_TRUE(ToImpellerType(builder.GetTransform()).IsIdentity());
   ASSERT_EQ(builder.GetSaveCount(), 1u);
   builder.Save();
   ASSERT_EQ(builder.GetSaveCount(), 2u);
   builder.Restore();
   ASSERT_EQ(builder.GetSaveCount(), 1u);
 }

References impeller::Matrix::IsIdentity(), and impeller::interop::ToImpellerType().

◆ TEST_P() [5/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanCreateFragmentProgramColorFilters
	)

Definition at line 661 of file impeller_unittests.cc.

                                                                     {
   auto iplr = OpenAssetAsHPPMapping("interop_runtime_stage_cs.frag.iplr");
   ASSERT_TRUE(!!iplr);
   auto program = hpp::FragmentProgram::WithData(std::move(iplr));
   ASSERT_TRUE(program);
   auto context = GetHPPContext();
   auto filter =
       hpp::ImageFilter::FragmentProgram(context, program, {}, nullptr);
   ASSERT_TRUE(filter);
   auto bay_bridge = OpenAssetAsHPPTexture("bay_bridge.jpg");
   ASSERT_TRUE(bay_bridge);
  
   float size_data[4] = {500, 500};
   auto uniform_data = hpp::Mapping{reinterpret_cast<const uint8_t*>(&size_data),
                                    sizeof(size_data), nullptr};
  
   auto dl = hpp::DisplayListBuilder{}
                 .DrawRect({10, 10, 500, 500},
                           hpp::Paint{}
                               .SetColor({1.0, 1.0, 1.0, 1.0})
                               .SetColorSource(hpp::ColorSource::FragmentProgram(
                                   context,             //
                                   program,             //
                                   {bay_bridge.Get()},  // samplers
                                   &uniform_data        // uniform data
                                   )))
                 .Build();
   ASSERT_TRUE(
       OpenPlaygroundHere([&](const auto& context, const auto& surface) -> bool {
         hpp::Surface window(surface.GetC());
         window.Draw(dl);
         return true;
       }));
 }

References context.

◆ TEST_P() [6/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanCreateOpenGLImage
	)

Definition at line 134 of file impeller_unittests.cc.

                                                     {
   auto context = GetInteropContext();
  
   auto impeller_context = context->GetContext();
  
   if (impeller_context->GetBackendType() !=
       impeller::Context::BackendType::kOpenGLES) {
     GTEST_SKIP() << "This test works with OpenGL handles is only suitable for "
                     "that backend.";
     return;
   }
  
   const auto& gl_context = ContextGLES::Cast(*impeller_context);
   const auto& gl = gl_context.GetReactor()->GetProcTable();
  
   constexpr ISize external_texture_size = {200, 300};
  
   Allocation texture_data;
   ASSERT_TRUE(
       texture_data.Truncate(Bytes{external_texture_size.Area() * 4u}, false));
  
   const auto kClearColor = Color::Fuchsia().ToR8G8B8A8();
  
   for (size_t i = 0; i < external_texture_size.Area() * 4u; i += 4u) {
     memcpy(texture_data.GetBuffer() + i, kClearColor.data(), 4);
   }
  
   GLuint external_texture = GL_NONE;
   gl.GenTextures(1u, &external_texture);
   ASSERT_NE(external_texture, 0u);
   gl.BindTexture(GL_TEXTURE_2D, external_texture);
   gl.TexImage2D(GL_TEXTURE_2D,                 //
                 0,                             //
                 GL_RGBA,                       //
                 external_texture_size.width,   //
                 external_texture_size.height,  //
                 0,                             //
                 GL_RGBA,                       //
                 GL_UNSIGNED_BYTE,              //
                 texture_data.GetBuffer()       //
   );
  
   ImpellerTextureDescriptor desc = {};
   desc.pixel_format = ImpellerPixelFormat::kImpellerPixelFormatRGBA8888;
   desc.size = {external_texture_size.width, external_texture_size.height};
   desc.mip_count = 1u;
   auto texture = Adopt<Texture>(ImpellerTextureCreateWithOpenGLTextureHandleNew(
       context.GetC(),   //
       &desc,            //
       external_texture  //
       ));
   ASSERT_TRUE(texture);
  
   ASSERT_EQ(ImpellerTextureGetOpenGLHandle(texture.GetC()), external_texture);
  
   auto builder =
       Adopt<DisplayListBuilder>(ImpellerDisplayListBuilderNew(nullptr));
   ImpellerPoint point = {100, 100};
   ImpellerDisplayListBuilderDrawTexture(builder.GetC(), texture.GetC(), &point,
                                         kImpellerTextureSamplingLinear,
                                         nullptr);
   auto dl = Adopt<DisplayList>(
       ImpellerDisplayListBuilderCreateDisplayListNew(builder.GetC()));
   ASSERT_TRUE(
       OpenPlaygroundHere([&](const auto& context, const auto& surface) -> bool {
         ImpellerSurfaceDrawDisplayList(surface.GetC(), dl.GetC());
         return true;
       }));
 }

References impeller::BackendCast< ContextGLES, Context >::Cast(), context, impeller::Color::Fuchsia(), impeller::Allocation::GetBuffer(), impeller::interop::ImpellerDisplayListBuilderCreateDisplayListNew(), impeller::interop::ImpellerDisplayListBuilderDrawTexture(), impeller::interop::ImpellerDisplayListBuilderNew(), impeller::interop::ImpellerSurfaceDrawDisplayList(), impeller::interop::ImpellerTextureCreateWithOpenGLTextureHandleNew(), impeller::interop::ImpellerTextureGetOpenGLHandle(), kImpellerPixelFormatRGBA8888, kImpellerTextureSamplingLinear, impeller::Context::kOpenGLES, ImpellerTextureDescriptor::mip_count, ImpellerTextureDescriptor::pixel_format, ImpellerTextureDescriptor::size, impeller::Color::ToR8G8B8A8(), impeller::Allocation::Truncate(), and ImpellerISize::width.

◆ TEST_P() [7/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanCreateParagraphs
	)

Definition at line 242 of file impeller_unittests.cc.

                                                    {
   // Create a typography context.
   hpp::TypographyContext type_context;
   ASSERT_TRUE(type_context);
  
   // Create a builder.
   hpp::ParagraphBuilder builder(type_context);
   ASSERT_TRUE(builder);
  
   // Create a paragraph style with the font size and foreground and background
   // colors.
   hpp::ParagraphStyle style;
   ASSERT_TRUE(style);
   style.SetFontSize(150.0f);
   style.SetHeight(2.0f);
  
   {
     hpp::Paint paint;
     ASSERT_TRUE(paint);
     paint.SetColor({1.0, 0.0, 0.0, 1.0});
     style.SetForeground(paint);
   }
  
   {
     hpp::Paint paint;
     paint.SetColor({1.0, 1.0, 1.0, 1.0});
     style.SetBackground(paint);
   }
  
   // Push the style onto the style stack.
   builder.PushStyle(style);
   std::string text = "the ⚡️ quick ⚡️ brown 🦊 fox jumps over the lazy dog 🐶.";
  
   // Add the paragraph text data.
   builder.AddText(text);
  
   // Layout and build the paragraph.
   auto paragraph = builder.Build(1200.0f);
   ASSERT_TRUE(paragraph);
  
   // Create a display list with just the paragraph drawn into it.
   hpp::DisplayListBuilder dl_builder;
   dl_builder.DrawParagraph(paragraph, {20, 20});
  
   // Build the display list.
   auto dl = dl_builder.Build();
  
   ASSERT_TRUE(
       OpenPlaygroundHere([&](const auto& context, const auto& surface) -> bool {
         hpp::Surface window(surface.GetC());
         window.Draw(dl);
         return true;
       }));
 }

References context.

◆ TEST_P() [8/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanCreateParagraphsWithCustomFont
	)

Definition at line 356 of file impeller_unittests.cc.

                                                                  {
   // Create a typography context.
   auto type_context = Adopt<TypographyContext>(ImpellerTypographyContextNew());
   ASSERT_TRUE(type_context);
  
   // Open the custom font file.
   std::unique_ptr<fml::Mapping> font_data =
       flutter::testing::OpenFixtureAsMapping("wtf.otf");
   ASSERT_NE(font_data, nullptr);
   ASSERT_GT(font_data->GetSize(), 0u);
   ImpellerMapping font_data_mapping = {
       .data = font_data->GetMapping(),
       .length = font_data->GetSize(),
       .on_release = [](auto ctx) {
         delete reinterpret_cast<fml::Mapping*>(ctx);
       }};
   auto registered =
       ImpellerTypographyContextRegisterFont(type_context.GetC(),  //
                                             &font_data_mapping,   //
                                             font_data.release(),  //
                                             nullptr               //
       );
   ASSERT_TRUE(registered);
  
   // Create a builder.
   auto builder =
       Adopt<ParagraphBuilder>(ImpellerParagraphBuilderNew(type_context.GetC()));
   ASSERT_TRUE(builder);
  
   // Create a paragraph style with the font size and foreground and background
   // colors.
   auto style = Adopt<ParagraphStyle>(ImpellerParagraphStyleNew());
   ASSERT_TRUE(style);
   ImpellerParagraphStyleSetFontSize(style.GetC(), 150.0f);
   ImpellerParagraphStyleSetFontFamily(style.GetC(), "WhatTheFlutter");
  
   {
     auto paint = Adopt<Paint>(ImpellerPaintNew());
     ASSERT_TRUE(paint);
     ImpellerColor color = {0.0, 1.0, 1.0, 1.0};
     ImpellerPaintSetColor(paint.GetC(), &color);
     ImpellerParagraphStyleSetForeground(style.GetC(), paint.GetC());
   }
  
   // Push the style onto the style stack.
   ImpellerParagraphBuilderPushStyle(builder.GetC(), style.GetC());
   std::string text = "0F0F0F0";
  
   // Add the paragraph text data.
   ImpellerParagraphBuilderAddText(builder.GetC(),
                                   reinterpret_cast<const uint8_t*>(text.data()),
                                   text.size());
  
   // Layout and build the paragraph.
   auto paragraph = Adopt<Paragraph>(
       ImpellerParagraphBuilderBuildParagraphNew(builder.GetC(), 1200.0f));
   ASSERT_TRUE(paragraph);
  
   // Create a display list with just the paragraph drawn into it.
   auto dl_builder =
       Adopt<DisplayListBuilder>(ImpellerDisplayListBuilderNew(nullptr));
   ImpellerPoint point = {20, 20};
   ImpellerDisplayListBuilderDrawParagraph(dl_builder.GetC(), paragraph.GetC(),
                                           &point);
   auto dl = Adopt<DisplayList>(
       ImpellerDisplayListBuilderCreateDisplayListNew(dl_builder.GetC()));
  
   ASSERT_TRUE(
       OpenPlaygroundHere([&](const auto& context, const auto& surface) -> bool {
         ImpellerSurfaceDrawDisplayList(surface.GetC(), dl.GetC());
         return true;
       }));
 }  // namespace impeller::interop::testing

◆ TEST_P() [9/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanCreateShapes
	)

Definition at line 323 of file impeller_unittests.cc.

                                                {
   hpp::DisplayListBuilder builder;
  
   hpp::Paint red_paint;
   red_paint.SetColor({1.0, 0.0, 0.0, 1.0});
   red_paint.SetStrokeWidth(10.0);
  
   builder.Translate(10, 10);
   builder.DrawRect({0, 0, 100, 100}, red_paint);
   builder.Translate(100, 100);
   builder.DrawOval({0, 0, 100, 100}, red_paint);
   builder.Translate(100, 100);
   builder.DrawLine({0, 0}, {100, 100}, red_paint);
  
   builder.Translate(100, 100);
   ImpellerRoundingRadii radii = {};
   radii.top_left = {10, 10};
   radii.bottom_right = {10, 10};
   builder.DrawRoundedRect({0, 0, 100, 100}, radii, red_paint);
  
   builder.Translate(100, 100);
   builder.DrawPath(hpp::PathBuilder{}.AddOval({0, 0, 100, 100}).Build(),
                    red_paint);
  
   auto dl = builder.Build();
   ASSERT_TRUE(
       OpenPlaygroundHere([&](const auto& context, const auto& surface) -> bool {
         hpp::Surface window(surface.GetC());
         window.Draw(dl);
         return true;
       }));
 }

References ImpellerRoundingRadii::bottom_right, context, and ImpellerRoundingRadii::top_left.

◆ TEST_P() [10/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanCreateSurface
	)

Definition at line 49 of file impeller_unittests.cc.

                                                 {
   if (GetBackend() != PlaygroundBackend::kOpenGLES &&
       GetBackend() != PlaygroundBackend::kOpenGLESSDF) {
     GTEST_SKIP()
         << "This test checks wrapping FBOs which is an OpenGL ES only call.";
     return;
   }
   auto context = CreateContext();
   ASSERT_TRUE(context);
   const auto window_size = GetWindowSize();
   ImpellerISize size = {window_size.width, window_size.height};
   auto surface = Adopt<Surface>(ImpellerSurfaceCreateWrappedFBONew(
       context.GetC(),                                     //
       0u,                                                 //
       ImpellerPixelFormat::kImpellerPixelFormatRGBA8888,  //
       &size)                                              //
   );
   ASSERT_TRUE(surface);
 }

References context, impeller::android::testing::CreateContext(), impeller::interop::ImpellerSurfaceCreateWrappedFBONew(), kImpellerPixelFormatRGBA8888, impeller::kOpenGLES, impeller::kOpenGLESSDF, and ImpellerISize::width.

◆ TEST_P() [11/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanDrawImage
	)

Definition at line 100 of file impeller_unittests.cc.

                                             {
   auto compressed = LoadFixtureImageCompressed(
       flutter::testing::OpenFixtureAsMapping("boston.jpg"));
   ASSERT_NE(compressed, nullptr);
   auto decompressed = std::make_shared<impeller::DecompressedImage>(
       compressed->Decode().ConvertToRGBA());
   ASSERT_TRUE(decompressed->IsValid());
   auto mapping = std::make_unique<hpp::Mapping>(
       decompressed->GetAllocation()->GetMapping(),
       decompressed->GetAllocation()->GetSize(), [decompressed]() {
         // Mapping will be dropped on the floor.
       });
  
   auto context = GetHPPContext();
   ImpellerTextureDescriptor desc = {};
   desc.pixel_format = ImpellerPixelFormat::kImpellerPixelFormatRGBA8888;
   desc.size = {decompressed->GetSize().width, decompressed->GetSize().height};
   desc.mip_count = 1u;
   auto texture = hpp::Texture::WithContents(context, desc, std::move(mapping));
   ASSERT_TRUE(texture);
  
   auto dl = hpp::DisplayListBuilder{}
                 .DrawTexture(texture, {100, 100},
                              kImpellerTextureSamplingLinear, hpp::Paint{})
                 .Build();
  
   ASSERT_TRUE(
       OpenPlaygroundHere([&](const auto& context, const auto& surface) -> bool {
         hpp::Surface window(surface.GetC());
         window.Draw(dl);
         return true;
       }));
 }

References context, kImpellerPixelFormatRGBA8888, kImpellerTextureSamplingLinear, ImpellerTextureDescriptor::mip_count, ImpellerTextureDescriptor::pixel_format, ImpellerTextureDescriptor::size, and ImpellerISize::width.

◆ TEST_P() [12/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanDrawRect
	)

Definition at line 69 of file impeller_unittests.cc.

                                            {
   auto builder =
       Adopt<DisplayListBuilder>(ImpellerDisplayListBuilderNew(nullptr));
   auto paint = Adopt<Paint>(ImpellerPaintNew());
   ImpellerColor color = {0.0, 0.0, 1.0, 1.0};
   ImpellerPaintSetColor(paint.GetC(), &color);
   ImpellerRect rect = {10, 20, 100, 200};
   ImpellerDisplayListBuilderDrawRect(builder.GetC(), &rect, paint.GetC());
   color = {1.0, 0.0, 0.0, 1.0};
   ImpellerPaintSetColor(paint.GetC(), &color);
   ImpellerDisplayListBuilderTranslate(builder.GetC(), 110, 210);
   ImpellerMatrix scale_transform = {
       // clang-format off
       2.0, 0.0, 0.0, 0.0, //
       0.0, 2.0, 0.0, 0.0, //
       0.0, 0.0, 1.0, 0.0, //
       0.0, 0.0, 0.0, 1.0, //
       // clang-format on
   };
   ImpellerDisplayListBuilderTransform(builder.GetC(), &scale_transform);
   ImpellerDisplayListBuilderDrawRect(builder.GetC(), &rect, paint.GetC());
   auto dl = Adopt<DisplayList>(
       ImpellerDisplayListBuilderCreateDisplayListNew(builder.GetC()));
   ASSERT_TRUE(dl);
   ASSERT_TRUE(
       OpenPlaygroundHere([&](const auto& context, const auto& surface) -> bool {
         ImpellerSurfaceDrawDisplayList(surface.GetC(), dl.GetC());
         return true;
       }));
 }

References context, impeller::interop::ImpellerDisplayListBuilderCreateDisplayListNew(), impeller::interop::ImpellerDisplayListBuilderDrawRect(), impeller::interop::ImpellerDisplayListBuilderNew(), impeller::interop::ImpellerDisplayListBuilderTransform(), impeller::interop::ImpellerDisplayListBuilderTranslate(), impeller::interop::ImpellerPaintNew(), impeller::interop::ImpellerPaintSetColor(), and impeller::interop::ImpellerSurfaceDrawDisplayList().

◆ TEST_P() [13/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanGetPathBounds
	)

Definition at line 626 of file impeller_unittests.cc.

                                                 {
   const auto path =
       hpp::PathBuilder{}.MoveTo({100, 100}).LineTo({200, 200}).Build();
   const auto bounds = path.GetBounds();
   ASSERT_EQ(bounds.x, 100);
   ASSERT_EQ(bounds.y, 100);
   ASSERT_EQ(bounds.width, 100);
   ASSERT_EQ(bounds.height, 100);
 }

References impeller::LineTo().

◆ TEST_P() [14/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanMeasureText
	)

Definition at line 538 of file impeller_unittests.cc.

                                               {
   hpp::TypographyContext type_context;
   hpp::ParagraphBuilder paragraph_builder(type_context);
   hpp::ParagraphStyle paragraph_style;
   paragraph_style.SetFontSize(50);
   paragraph_builder.PushStyle(paragraph_style);
   const std::string text =
       "🏁 Can 👨‍👨‍👦‍👦 Measure 🔍 Text\nAnd this is line "
       "two.\nWhoa! Three lines. How high does this go?\r\nI stopped counting.";
   const auto u16text = fml::Utf8ToUtf16(text);
   ASSERT_NE(text.size(), u16text.size());
   paragraph_builder.AddText(reinterpret_cast<const uint8_t*>(text.data()),
                             text.size());
   hpp::DisplayListBuilder builder;
   // Don't rely on implicit line breaks in this test to make it less brittle to
   // different fonts being picked.
   hpp::Paragraph paragraph = paragraph_builder.Build(FLT_MAX);
   const auto line_count = paragraph.GetLineCount();
   ASSERT_EQ(line_count, 4u);
  
   // Line Metrics.
   {
     auto metrics = paragraph.GetLineMetrics();
     ASSERT_GT(metrics.GetAscent(0), 0.0);
     ASSERT_GT(metrics.GetUnscaledAscent(0), 0.0);
     ASSERT_GT(metrics.GetDescent(0), 0.0);
     ASSERT_GT(metrics.GetBaseline(0), 0.0);
     ASSERT_TRUE(metrics.IsHardbreak(0));
     ASSERT_DOUBLE_EQ(metrics.GetLeft(0), 0.0);
     ASSERT_EQ(metrics.GetCodeUnitStartIndex(0), 0u);
     ASSERT_EQ(metrics.GetCodeUnitEndIndexIncludingNewline(0),
               metrics.GetCodeUnitEndIndex(0) + 1u);
     ASSERT_GT(metrics.GetCodeUnitStartIndex(1), 0u);
     // Last line should cover the entire range.
     ASSERT_EQ(metrics.GetCodeUnitEndIndex(3), u16text.size());
   }
  
   // Glyph info by code point.
   {
     auto glyph = paragraph.GlyphInfoAtCodeUnitIndex(0u);
     ASSERT_TRUE(glyph);
     ASSERT_EQ(glyph.GetGraphemeClusterCodeUnitRangeBegin(), 0u);
     ASSERT_EQ(glyph.GetGraphemeClusterCodeUnitRangeEnd(),
               fml::Utf8ToUtf16("🏁").size());
     auto bounds = glyph.GetGraphemeClusterBounds();
     ASSERT_GT(bounds.width, 0.0);
     ASSERT_GT(bounds.height, 0.0);
     ASSERT_FALSE(glyph.IsEllipsis());
     ASSERT_EQ(glyph.GetTextDirection(), kImpellerTextDirectionLTR);
  
     ImpellerRect bounds2 = {};
     ImpellerGlyphInfoGetGraphemeClusterBounds(glyph.Get(), &bounds2);
     ASSERT_EQ(bounds.width, bounds2.width);
     ASSERT_EQ(bounds.height, bounds2.height);
   }
  
   // Glyph info by coordinates.
   {
     auto glyph = paragraph.GlyphInfoAtParagraphCoordinates(0.0, 0.0);
     ASSERT_TRUE(glyph);
     ASSERT_EQ(glyph.GetGraphemeClusterCodeUnitRangeEnd(),
               fml::Utf8ToUtf16("🏁").size());
   }
  
   // Glyph Figure out word boundaries.
   {
     auto glyph = paragraph.GlyphInfoAtCodeUnitIndex(0u);
     ASSERT_TRUE(glyph);
     auto range =
         paragraph.GetWordBoundary(glyph.GetGraphemeClusterCodeUnitRangeEnd());
     ASSERT_GT(range.end, 0u);
     ImpellerRange range2 = {};
     ImpellerParagraphGetWordBoundary(
         paragraph.Get(), glyph.GetGraphemeClusterCodeUnitRangeEnd(), &range2);
     ASSERT_EQ(range.start, range2.start);
     ASSERT_EQ(range.end, range2.end);
   }
  
   builder.DrawParagraph(paragraph, ImpellerPoint{100, 100});
   auto dl = builder.Build();
   ASSERT_TRUE(
       OpenPlaygroundHere([&](const auto& context, const auto& surface) -> bool {
         hpp::Surface window(surface.GetC());
         window.Draw(dl);
         return true;
       }));
 }

References context, ImpellerRange::end, ImpellerRect::height, impeller::interop::ImpellerGlyphInfoGetGraphemeClusterBounds(), impeller::interop::ImpellerParagraphGetWordBoundary(), kImpellerTextDirectionLTR, ImpellerRange::start, and ImpellerRect::width.

◆ TEST_P() [15/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanRenderShadows
	)

Definition at line 509 of file impeller_unittests.cc.

                                                 {
   hpp::DisplayListBuilder builder;
   {
     builder.DrawRect(ImpellerRect{0, 0, 400, 400},
                      hpp::Paint{}.SetColor(ImpellerColor{
                          0.0, 1.0, 0.0, 1.0, kImpellerColorSpaceSRGB}));
   }
   ImpellerRect box = {100, 100, 100, 100};
   {
     hpp::PathBuilder path_builder;
     path_builder.AddRect(box);
     ImpellerColor shadow_color = {0.0, 0.0, 0.0, 1.0, kImpellerColorSpaceSRGB};
     builder.DrawShadow(path_builder.Build(), shadow_color, 4.0f, false, 1.0f);
   }
   {
     hpp::Paint red_paint;
     red_paint.SetColor(
         ImpellerColor{1.0, 0.0, 0.0, 1.0, kImpellerColorSpaceSRGB});
     builder.DrawRect(box, red_paint);
   }
   auto dl = builder.Build();
   ASSERT_TRUE(
       OpenPlaygroundHere([&](const auto& context, const auto& surface) -> bool {
         hpp::Surface window(surface.GetC());
         window.Draw(dl);
         return true;
       }));
 }

References context, and kImpellerColorSpaceSRGB.

◆ TEST_P() [16/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		CanRenderTextAlignments
	)

Definition at line 470 of file impeller_unittests.cc.

                                                        {
   hpp::TypographyContext tc;
  
   hpp::DisplayListBuilder builder;
   hpp::Paint bg;
   hpp::ParagraphStyle p_style;
   p_style.SetFontFamily("Roboto");
   p_style.SetFontSize(24.0);
   p_style.SetFontWeight(kImpellerFontWeight400);
  
   // Clear the background to a white color.
   ImpellerColor clear_color = {1.0, 1.0, 1.0, 1.0};
   bg.SetColor(clear_color);
   builder.DrawPaint(bg);
  
   // Draw red, left-aligned text.
   ImpellerColor red = {1.0, 0.0, 0.0, 1.0};
   DrawTextFrame(tc, builder, p_style, bg, red, kImpellerTextAlignmentLeft, 0.0);
  
   // Draw green, centered text.
   ImpellerColor green = {0.0, 1.0, 0.0, 1.0};
   DrawTextFrame(tc, builder, p_style, bg, green, kImpellerTextAlignmentCenter,
                 220.0);
  
   // Draw blue, right-aligned text.
   ImpellerColor blue = {0.0, 0.0, 1.0, 1.0};
   DrawTextFrame(tc, builder, p_style, bg, blue, kImpellerTextAlignmentRight,
                 440.0);
  
   auto dl = builder.Build();
  
   ASSERT_TRUE(
       OpenPlaygroundHere([&](const auto& context, const auto& surface) -> bool {
         hpp::Surface window(surface.GetC());
         window.Draw(dl);
         return true;
       }));
 }

References context, DrawTextFrame(), kImpellerFontWeight400, kImpellerTextAlignmentCenter, kImpellerTextAlignmentLeft, and kImpellerTextAlignmentRight.

◆ TEST_P() [17/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		ClearsOpenGLStancilStateAfterTransition
	)

Definition at line 204 of file impeller_unittests.cc.

                                                                        {
   auto context = GetInteropContext();
   auto impeller_context = context->GetContext();
   if (impeller_context->GetBackendType() !=
       impeller::Context::BackendType::kOpenGLES) {
     GTEST_SKIP() << "This test works with OpenGL handles is only suitable for "
                     "that backend.";
     return;
   }
   const auto& gl_context = ContextGLES::Cast(*impeller_context);
   const auto& gl = gl_context.GetReactor()->GetProcTable();
   auto builder =
       Adopt<DisplayListBuilder>(ImpellerDisplayListBuilderNew(nullptr));
   auto paint = Adopt<Paint>(ImpellerPaintNew());
   ImpellerColor color = {0.0, 0.0, 1.0, 1.0};
   ImpellerPaintSetColor(paint.GetC(), &color);
   ImpellerRect rect = {10, 20, 100, 200};
   ImpellerDisplayListBuilderDrawRect(builder.GetC(), &rect, paint.GetC());
   color = {1.0, 0.0, 0.0, 1.0};
   ImpellerPaintSetColor(paint.GetC(), &color);
   ImpellerDisplayListBuilderTranslate(builder.GetC(), 110, 210);
   ImpellerDisplayListBuilderClipRect(builder.GetC(), &rect,
                                      kImpellerClipOperationDifference);
   ImpellerDisplayListBuilderDrawRect(builder.GetC(), &rect, paint.GetC());
   auto dl = Adopt<DisplayList>(
       ImpellerDisplayListBuilderCreateDisplayListNew(builder.GetC()));
   ASSERT_TRUE(dl);
   ASSERT_TRUE(
       OpenPlaygroundHere([&](const auto& context, const auto& surface) -> bool {
         ImpellerSurfaceDrawDisplayList(surface.GetC(), dl.GetC());
         // OpenGL state is reset even though the operations above enable a
         // stencil check.
         GLboolean stencil_enabled = true;
         gl.GetBooleanv(GL_STENCIL_TEST, &stencil_enabled);
         return stencil_enabled == GL_FALSE;
       }));
 }

◆ TEST_P() [18/18]

impeller::interop::testing::TEST_P	(	InteropPlaygroundTest	,
		MappingsReleaseTheirDataOnDestruction
	)

Definition at line 696 of file impeller_unittests.cc.

                                                                      {
   bool deleted = false;
   {
     hpp::Mapping mapping(nullptr, 0, [&deleted]() { deleted = true; });
   }
   ASSERT_TRUE(deleted);
 }

Classes

Typedefs

Functions

Typedef Documentation

◆ InteropPlaygroundTest

Function Documentation

◆ CreateSharedContext()

◆ CreateSharedSurface()

◆ DrawTextFrame()

◆ IMPELLER_DEFINE_HANDLE() [1/2]

◆ IMPELLER_DEFINE_HANDLE() [2/2]

◆ INSTANTIATE_PLAYGROUND_SUITE()

◆ SetupImpellerHPPProcTableOnce()

◆ TEST() [1/3]

◆ TEST() [2/3]

◆ TEST() [3/3]

◆ TEST_P() [1/18]

◆ TEST_P() [2/18]

◆ TEST_P() [3/18]

◆ TEST_P() [4/18]

◆ TEST_P() [5/18]

◆ TEST_P() [6/18]

◆ TEST_P() [7/18]

◆ TEST_P() [8/18]

◆ TEST_P() [9/18]

◆ TEST_P() [10/18]

◆ TEST_P() [11/18]

◆ TEST_P() [12/18]

◆ TEST_P() [13/18]

◆ TEST_P() [14/18]

◆ TEST_P() [15/18]

◆ TEST_P() [16/18]

◆ TEST_P() [17/18]

◆ TEST_P() [18/18]