Generalize builtin pass resource binding plan

tests/Rendering/unit/test_builtin_forward_pipeline.cpp

@@ -10,6 +10,8 @@
 
 using namespace XCEngine::Rendering::Pipelines;
 using namespace XCEngine::Rendering::Passes;
+using namespace XCEngine::Rendering;
+using namespace XCEngine::Containers;
 using namespace XCEngine::Resources;
 using namespace XCEngine::RHI;
 
@@ -76,6 +78,48 @@ TEST(BuiltinForwardPipeline_Test, BuiltinForwardShaderDeclaresExplicitForwardRes
     delete shader;
 }
 
+TEST(BuiltinForwardPipeline_Test, BuildsBuiltinPassResourceBindingPlanFromExplicitForwardResources) {
+    ShaderLoader loader;
+    LoadResult result = loader.Load(GetBuiltinForwardLitShaderPath());
+    ASSERT_TRUE(result);
+    ASSERT_NE(result.resource, nullptr);
+
+    Shader* shader = static_cast<Shader*>(result.resource);
+    ASSERT_NE(shader, nullptr);
+
+    const ShaderPass* pass = shader->FindPass("ForwardLit");
+    ASSERT_NE(pass, nullptr);
+
+    BuiltinPassResourceBindingPlan plan = {};
+    String error;
+    EXPECT_TRUE(TryBuildBuiltinPassResourceBindingPlan(pass->resources, plan, &error)) << error.CStr();
+    EXPECT_TRUE(plan.perObject.IsValid());
+    EXPECT_TRUE(plan.material.IsValid());
+    EXPECT_TRUE(plan.baseColorTexture.IsValid());
+    EXPECT_TRUE(plan.linearClampSampler.IsValid());
+    EXPECT_EQ(plan.firstDescriptorSet, 1u);
+    EXPECT_EQ(plan.descriptorSetCount, 4u);
+    EXPECT_TRUE(plan.usesConstantBuffers);
+    EXPECT_TRUE(plan.usesTextures);
+    EXPECT_TRUE(plan.usesSamplers);
+
+    delete shader;
+}
+
+TEST(BuiltinForwardPipeline_Test, BuildsBuiltinPassResourceBindingPlanFromLegacyFallbackResources) {
+    const Array<ShaderResourceBindingDesc> bindings = BuildLegacyBuiltinForwardPassResourceBindings();
+    ASSERT_EQ(bindings.Size(), 4u);
+
+    BuiltinPassResourceBindingPlan plan = {};
+    String error;
+    EXPECT_TRUE(TryBuildBuiltinPassResourceBindingPlan(bindings, plan, &error)) << error.CStr();
+    ASSERT_EQ(plan.bindings.Size(), 4u);
+    EXPECT_EQ(plan.perObject.set, 1u);
+    EXPECT_EQ(plan.material.set, 2u);
+    EXPECT_EQ(plan.baseColorTexture.set, 3u);
+    EXPECT_EQ(plan.linearClampSampler.set, 4u);
+}
+
 TEST(BuiltinObjectIdPass_Test, UsesFloat3PositionInputLayoutForStaticMeshVertices) {
     const InputLayoutDesc inputLayout = BuiltinObjectIdPass::BuildInputLayout();