tests: Test hull shader function overloads.

Approved-by: Elizabeth Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1015

Makefile.am

@@ -133,6 +133,7 @@ vkd3d_shader_tests = \
 	tests/hlsl/half.shader_test \
 	tests/hlsl/hard-copy-prop.shader_test \
 	tests/hlsl/hull-shader-attributes.shader_test \
+	tests/hlsl/hull-shader-syntax.shader_test \
 	tests/hlsl/initializer-flatten.shader_test \
 	tests/hlsl/initializer-implicit-array.shader_test \
 	tests/hlsl/initializer-invalid-arg-count.shader_test \

tests/hlsl/hull-shader-syntax.shader_test

@@ -0,0 +1,112 @@
+[require]
+shader model >= 5.0
+
+%% Test patch constant function overloads.
+%% For SM < 6, the last declaration that is defined is picked.
+%% For SM >= 6, the last valid declaration is picked, even if it is not defined.
+
+[hull shader]
+struct patch_constant_data
+{
+    float edges[2] : SV_TessFactor;
+};
+
+patch_constant_data patch_constant(float x);
+patch_constant_data patch_constant(float x, uint y);
+
+patch_constant_data patch_constant()
+{
+    return (patch_constant_data)0;
+}
+
+// Missing valid return semantics (SV_TessFactor).
+float patch_constant(uint x);
+
+    [domain("isoline")]
+    [outputcontrolpoints(3)]
+    [partitioning("integer")]
+    [outputtopology("point")]
+    [patchconstantfunc("patch_constant")]
+float4 main() : POSITION
+{
+    return 0;
+}
+
+[hull shader fail(sm>=6)]
+struct patch_constant_data
+{
+    float edges[2] : SV_TessFactor;
+};
+
+patch_constant_data patch_constant(float x);
+patch_constant_data patch_constant(float x, uint y);
+
+patch_constant_data patch_constant()
+{
+    return (patch_constant_data)0;
+}
+
+patch_constant_data patch_constant(uint x : SV_PrimitiveID);
+
+    [domain("isoline")]
+    [outputcontrolpoints(3)]
+    [partitioning("integer")]
+    [outputtopology("point")]
+    [patchconstantfunc("patch_constant")]
+float4 main() : POSITION
+{
+    return 0;
+}
+
+[hull shader]
+struct patch_constant_data
+{
+    float edges[2] : SV_TessFactor;
+};
+
+patch_constant_data patch_constant()
+{
+    return (patch_constant_data)0;
+}
+
+patch_constant_data patch_constant(uint x : SV_PrimitiveID)
+{
+    return (patch_constant_data)x;
+}
+
+    [domain("isoline")]
+    [outputcontrolpoints(3)]
+    [partitioning("integer")]
+    [outputtopology("point")]
+    [patchconstantfunc("patch_constant")]
+float4 main() : POSITION
+{
+    return 0;
+}
+
+[hull shader fail todo]
+struct patch_constant_data
+{
+    float edges[2] : SV_TessFactor;
+};
+
+patch_constant_data patch_constant()
+{
+    return (patch_constant_data)0;
+}
+
+// x is missing a semantic.
+patch_constant_data patch_constant(uint x)
+{
+    return (patch_constant_data)x;
+}
+
+    [domain("isoline")]
+    [outputcontrolpoints(3)]
+    [partitioning("integer")]
+    [outputtopology("point")]
+    [patchconstantfunc("patch_constant")]
+float4 main() : POSITION
+{
+    return 0;
+}