Merge pull request #56 from tfoleyNV/bug-55

Bug 55

6 files changed, 68 insertions, 5 deletions

diff --git a/slang.h b/slang.h
index 93fdefab7..926ef531d 100644
--- a/slang.h
+++ b/slang.h
@@ -429,7 +429,7 @@ extern "C"
         SLANG_PARAMETER_CATEGORY_SAMPLER_STATE,
         SLANG_PARAMETER_CATEGORY_UNIFORM,
         SLANG_PARAMETER_CATEGORY_DESCRIPTOR_TABLE_SLOT,
-        SLANG_PARAMETER_CATEGORY_SPECIALIZTION_CONSTANT,
+        SLANG_PARAMETER_CATEGORY_SPECIALIZATION_CONSTANT,
         SLANG_PARAMETER_CATEGORY_MIXED,
     };
 
@@ -660,7 +660,7 @@ namespace slang
         SamplerState = SLANG_PARAMETER_CATEGORY_SAMPLER_STATE,
         Uniform = SLANG_PARAMETER_CATEGORY_UNIFORM,
         DescriptorTableSlot = SLANG_PARAMETER_CATEGORY_DESCRIPTOR_TABLE_SLOT,
-        SpecializationConstant = SLANG_PARAMETER_CATEGORY_SPECIALIZTION_CONSTANT,
+        SpecializationConstant = SLANG_PARAMETER_CATEGORY_SPECIALIZATION_CONSTANT,
         Mixed = SLANG_PARAMETER_CATEGORY_MIXED,
     };
 
diff --git a/source/slang/emit.cpp b/source/slang/emit.cpp
index 79a8277bf..08d2218dc 100644
--- a/source/slang/emit.cpp
+++ b/source/slang/emit.cpp
@@ -755,7 +755,7 @@ static void emitCallExpr(
                         char d = *cursor++;
                         assert(('0' <= d) && (d <= '9'));
 
-                        int argIndex = d - '0';
+                        UInt argIndex = d - '0';
                         assert((0 <= argIndex) && (argIndex < argCount));
                         Emit(context, "(");
                         EmitExpr(context, callExpr->Arguments[argIndex]);
diff --git a/source/slang/reflection.cpp b/source/slang/reflection.cpp
index f71435c6f..b27cc0696 100644
--- a/source/slang/reflection.cpp
+++ b/source/slang/reflection.cpp
@@ -842,6 +842,10 @@ static void emitReflectionVarBindingInfoJSON(
     CASE(VERTEX_INPUT, vertexInput);
     CASE(FRAGMENT_OUTPUT, fragmentOutput);
     CASE(SAMPLER_STATE, samplerState);
+    CASE(UNIFORM, uniform);
+    CASE(DESCRIPTOR_TABLE_SLOT, descriptorTableSlot);
+    CASE(SPECIALIZATION_CONSTANT, specializationConstant);
+    CASE(MIXED, mixed);
     #undef CASE
 
         default:
diff --git a/source/slang/type-layout.cpp b/source/slang/type-layout.cpp
index 2fcf64226..fbaec3736 100644
--- a/source/slang/type-layout.cpp
+++ b/source/slang/type-layout.cpp
@@ -163,10 +163,11 @@ struct Std140LayoutRulesImpl : GLSLConstantBufferLayoutRulesImpl
     SimpleLayoutInfo GetVectorLayout(SimpleLayoutInfo elementInfo, size_t elementCount) override
     {
         assert(elementInfo.kind == LayoutResourceKind::Uniform);
+        auto size = elementInfo.size * elementCount;
         SimpleLayoutInfo vectorInfo(
             LayoutResourceKind::Uniform,
-            elementInfo.size * elementCount,
-            RoundUpToPowerOfTwo(elementInfo.size * elementInfo.alignment));
+            size,
+            RoundUpToPowerOfTwo(size));
         return vectorInfo;
     }
 };
diff --git a/tests/reflection/gh-55.glsl b/tests/reflection/gh-55.glsl
new file mode 100644
index 000000000..4ced68c9e
--- /dev/null
+++ b/tests/reflection/gh-55.glsl
@@ -0,0 +1,13 @@
+//TEST(smoke):SIMPLE:-profile ps_4_0 -target reflection-json
+
+// Confirm fix for GitHub issue #55
+
+layout(set = 0, binding = 0)
+uniform PerFrameCB
+{
+	vec2 offset;
+	vec2 scale;
+};
+
+void main()
+{}
diff --git a/tests/reflection/gh-55.glsl.expected b/tests/reflection/gh-55.glsl.expected
new file mode 100644
index 000000000..8cdebdcd8
--- /dev/null
+++ b/tests/reflection/gh-55.glsl.expected
@@ -0,0 +1,45 @@
+result code = 0
+standard error = {
+}
+standard output = {
+{
+    "parameters": [
+        {
+            "name": "PerFrameCB",
+            "binding": {"kind": "descriptorTableSlot", "index": 0},
+            "type": {
+                "kind": "constantBuffer",
+                "elementType": {
+                    "kind": "struct",
+                    "fields": [
+                        {
+                            "name": "offset",
+                            "type": {
+                                "kind": "vector",
+                                "elementCount": 2,
+                                "elementType": {
+                                    "kind": "scalar",
+                                    "scalarType": "float32"
+                                }
+                            },
+                            "binding": {"kind": "uniform", "offset": 0, "size": 8}
+                        },
+                        {
+                            "name": "scale",
+                            "type": {
+                                "kind": "vector",
+                                "elementCount": 2,
+                                "elementType": {
+                                    "kind": "scalar",
+                                    "scalarType": "float32"
+                                }
+                            },
+                            "binding": {"kind": "uniform", "offset": 8, "size": 8}
+                        }
+                    ]
+                }
+            }
+        }
+    ]
+}
+}