[Impeller] Move RuntimeStage fixture loading to PlaygroundTest

impeller/entity/entity_unittests.cc

@@ -2086,7 +2086,7 @@ TEST_P(EntityTest, RuntimeEffect) {
     contents->SetGeometry(Geometry::MakeCover());
 
     auto runtime_stage =
-        LoadFixtureRuntimeStage("runtime_stage_example.frag.iplr");
+        OpenAssetAsRuntimeStage("runtime_stage_example.frag.iplr");
     contents->SetRuntimeStage(runtime_stage);
 
     struct FragUniforms {

impeller/playground/playground.cc

@@ -437,22 +437,6 @@ std::shared_ptr<Texture> Playground::CreateTextureCubeForFixture(
   return texture;
 }
 
-std::shared_ptr<RuntimeStage> Playground::LoadFixtureRuntimeStage(
-    const char* fixture_name) const {
-  if (fixture_name == nullptr) {
-    return nullptr;
-  }
-
-  auto runtime_stage =
-      std::make_shared<RuntimeStage>(OpenAssetAsMapping(fixture_name));
-
-  if (!runtime_stage->IsValid()) {
-    VALIDATION_LOG << "Could not load valid runtime stage.";
-    return nullptr;
-  }
-  return runtime_stage;
-}
-
 void Playground::SetWindowSize(ISize size) {
   window_size_ = size;
 }

impeller/playground/playground.h

@@ -64,9 +64,6 @@ class Playground {
   std::shared_ptr<Texture> CreateTextureCubeForFixture(
       std::array<const char*, 6> fixture_names) const;
 
-  std::shared_ptr<RuntimeStage> LoadFixtureRuntimeStage(
-      const char* fixture_name) const;
-
   static bool SupportsBackend(PlaygroundBackend backend);
 
   virtual std::unique_ptr<fml::Mapping> OpenAssetAsMapping(

impeller/playground/playground_test.cc

@@ -34,6 +34,19 @@ std::unique_ptr<fml::Mapping> PlaygroundTest::OpenAssetAsMapping(
   return flutter::testing::OpenFixtureAsMapping(asset_name);
 }
 
+std::shared_ptr<RuntimeStage> PlaygroundTest::OpenAssetAsRuntimeStage(
+    const char* asset_name) const {
+  auto fixture = flutter::testing::OpenFixtureAsMapping(asset_name);
+  if (!fixture || fixture->GetSize() == 0) {
+    return nullptr;
+  }
+  auto stage = std::make_unique<RuntimeStage>(std::move(fixture));
+  if (!stage->IsValid()) {
+    return nullptr;
+  }
+  return stage;
+}
+
 static std::string FormatWindowTitle(const std::string& test_name) {
   std::stringstream stream;
   stream << "Impeller Playground for '" << test_name

impeller/playground/playground_test.h

@@ -27,6 +27,9 @@ class PlaygroundTest : public Playground,
   std::unique_ptr<fml::Mapping> OpenAssetAsMapping(
       std::string asset_name) const override;
 
+  std::shared_ptr<RuntimeStage> OpenAssetAsRuntimeStage(
+      const char* asset_name) const;
+
   // |Playground|
   std::string GetWindowTitle() const override;
 

impeller/runtime_stage/runtime_stage_playground.cc

@@ -17,19 +17,6 @@ RuntimeStagePlayground::RuntimeStagePlayground() = default;
 
 RuntimeStagePlayground::~RuntimeStagePlayground() = default;
 
-std::unique_ptr<RuntimeStage> RuntimeStagePlayground::CreateStageFromFixture(
-    const std::string& fixture_name) const {
-  auto fixture = flutter::testing::OpenFixtureAsMapping(fixture_name);
-  if (!fixture || fixture->GetSize() == 0) {
-    return nullptr;
-  }
-  auto stage = std::make_unique<RuntimeStage>(std::move(fixture));
-  if (!stage->IsValid()) {
-    return nullptr;
-  }
-  return stage;
-}
-
 bool RuntimeStagePlayground::RegisterStage(const RuntimeStage& stage) {
   std::promise<bool> registration;
   auto future = registration.get_future();

impeller/runtime_stage/runtime_stage_playground.h

@@ -16,9 +16,6 @@ class RuntimeStagePlayground : public PlaygroundTest {
 
   ~RuntimeStagePlayground();
 
-  std::unique_ptr<RuntimeStage> CreateStageFromFixture(
-      const std::string& fixture_name) const;
-
   bool RegisterStage(const RuntimeStage& stage);
 
  private:

impeller/runtime_stage/runtime_stage_unittests.cc

@@ -216,7 +216,7 @@ TEST_P(RuntimeStageTest, CanCreatePipelineFromRuntimeStage) {
   if (GetParam() != PlaygroundBackend::kMetal) {
     GTEST_SKIP_("Skipped: https://github.com/flutter/flutter/issues/105538");
   }
-  auto stage = CreateStageFromFixture("ink_sparkle.frag.iplr");
+  auto stage = OpenAssetAsRuntimeStage("ink_sparkle.frag.iplr");
   ASSERT_NE(stage, nullptr);
   ASSERT_TRUE(RegisterStage(*stage));
   auto library = GetContext()->GetShaderLibrary();