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-rw-r--r--source/slang/slang-emit-spirv.cpp5
-rw-r--r--source/slang/slang-parameter-binding.cpp6
-rw-r--r--source/slang/slang-type-layout.cpp16
-rw-r--r--tests/spirv/c-layout-buffer-3.slang46
4 files changed, 67 insertions, 6 deletions
diff --git a/source/slang/slang-emit-spirv.cpp b/source/slang/slang-emit-spirv.cpp
index e8bcad1c1..f82bf24c1 100644
--- a/source/slang/slang-emit-spirv.cpp
+++ b/source/slang/slang-emit-spirv.cpp
@@ -3020,7 +3020,7 @@ struct SPIRVEmitContext : public SourceEmitterBase, public SPIRVEmitSharedContex
bool anyModifiers = (var->findDecoration<IRInterpolationModeDecoration>() != nullptr);
// If the user didn't explicitly qualify a varying
- // with integer type, then we need to explicitly
+ // with integer or pointer type, then we need to explicitly
// add the `flat` modifier for GLSL.
if (!anyModifiers)
{
@@ -3030,7 +3030,8 @@ struct SPIRVEmitContext : public SourceEmitterBase, public SPIRVEmitSharedContex
layout->usesResourceKind(LayoutResourceKind::VaryingInput))
{
const auto ptrType = as<IRPtrTypeBase>(var->getDataType());
- if (ptrType && isIntegralScalarOrCompositeType(ptrType->getValueType()))
+ if (ptrType && (isIntegralScalarOrCompositeType(ptrType->getValueType()) ||
+ as<IRPtrTypeBase>(ptrType->getValueType())))
emitOpDecorate(
getSection(SpvLogicalSectionID::Annotations),
nullptr,
diff --git a/source/slang/slang-parameter-binding.cpp b/source/slang/slang-parameter-binding.cpp
index b79f96022..605e50d41 100644
--- a/source/slang/slang-parameter-binding.cpp
+++ b/source/slang/slang-parameter-binding.cpp
@@ -2344,13 +2344,13 @@ static RefPtr<TypeLayout> processEntryPointVaryingParameter(
{
SLANG_ASSERT(ptrType->astNodeType == ASTNodeType::PtrType);
+ auto typeLayout = processSimpleEntryPointParameter(context, ptrType, state, varLayout);
+ RefPtr<PointerTypeLayout> ptrTypeLayout = typeLayout.as<PointerTypeLayout>();
+
// Work out the layout for the value/target type
auto valueTypeLayout =
processEntryPointVaryingParameter(context, ptrType->getValueType(), state, varLayout);
-
- RefPtr<PointerTypeLayout> ptrTypeLayout = new PointerTypeLayout();
ptrTypeLayout->valueTypeLayout = valueTypeLayout;
-
return ptrTypeLayout;
}
else if (auto optionalType = as<OptionalType>(type))
diff --git a/source/slang/slang-type-layout.cpp b/source/slang/slang-type-layout.cpp
index fb40382c5..519b3ab06 100644
--- a/source/slang/slang-type-layout.cpp
+++ b/source/slang/slang-type-layout.cpp
@@ -1387,7 +1387,7 @@ LayoutRulesImpl kCPushConstantRulesImpl_ = {
LayoutRulesImpl kCVaryingInputLayoutRulesImpl_ = {
&kCLayoutRulesFamilyImpl,
- &kGLSLVaryingOutputLayoutRulesImpl,
+ &kGLSLVaryingInputLayoutRulesImpl,
&kGLSLObjectLayoutRulesImpl,
};
@@ -5680,6 +5680,20 @@ RefPtr<TypeLayout> getSimpleVaryingParameterTypeLayout(
return typeLayout;
}
+ else if (as<PtrType>(type))
+ {
+ RefPtr<TypeLayout> typeLayout = new PointerTypeLayout();
+ typeLayout->type = type;
+ typeLayout->rules = rules;
+
+ for (int rr = 0; rr < varyingRulesCount; ++rr)
+ {
+ auto info = varyingRules[rr]->GetPointerLayout();
+ typeLayout->addResourceUsage(info.kind, info.size);
+ }
+
+ return typeLayout;
+ }
else if (auto vecType = as<VectorExpressionType>(type))
{
auto elementType = vecType->getElementType();
diff --git a/tests/spirv/c-layout-buffer-3.slang b/tests/spirv/c-layout-buffer-3.slang
new file mode 100644
index 000000000..55647f51b
--- /dev/null
+++ b/tests/spirv/c-layout-buffer-3.slang
@@ -0,0 +1,46 @@
+//TEST:SIMPLE(filecheck=SPIRV): -stage fragment -entry fragmentMain -target spirv -fvk-use-c-layout
+struct A {
+ int64_t i;
+ float f;
+};
+
+struct B {
+ A a;
+ float b;
+};
+
+struct FIn
+{
+ Ptr<B> i0;
+ Ptr<B> i1;
+ float c;
+ float d;
+}
+
+struct FOut
+{
+ float4 outputColor : SV_Target0;
+}
+
+StructuredBuffer<Ptr<B>, Std430DataLayout> testBuffer;
+
+[shader("fragment")]
+FOut fragmentMain(FIn input)
+{
+
+ FOut output;
+ output.outputColor = float4(input.i0.a.f, input.i0.b, input.i1.a.f, input.i1.b)+input.c-input.d;
+ output.outputColor += testBuffer[0].b;
+ return output;
+}
+
+// SPIRV: OpDecorate %input_i0 Location 0
+// SPIRV: OpDecorate %input_i0 Flat
+// SPIRV: OpDecorate %input_i1 Location 1
+// SPIRV: OpDecorate %input_i1 Flat
+// SPIRV: OpDecorate %input_c Location 2
+// SPIRV: OpDecorate %input_d Location 3
+// SPIRV: OpMemberDecorate %A_c 0 Offset 0
+// SPIRV: OpMemberDecorate %A_c 1 Offset 8
+// SPIRV: OpMemberDecorate %B_c 0 Offset 0
+// SPIRV: OpMemberDecorate %B_c 1 Offset 16