From 5dc96ab8d66ba0107a70c24fa74d07ead1373abf Mon Sep 17 00:00:00 2001
From: Francisco Casas <fcasas@codeweavers.com>
Date: Thu, 6 Nov 2025 15:00:16 -0300
Subject: [PATCH] tests/hlsl: Test which shader models allow FOG and PSIZE.

---
 Makefile.am                              |  1 +
 tests/hlsl/attrout-semantics.shader_test | 75 ++++++++++++++++++++++++
 2 files changed, 76 insertions(+)
 create mode 100644 tests/hlsl/attrout-semantics.shader_test

diff --git a/Makefile.am b/Makefile.am
index 886a42db0..b54dfff2a 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -69,6 +69,7 @@ vkd3d_shader_tests = \
 	tests/hlsl/asint.shader_test \
 	tests/hlsl/asuint.shader_test \
 	tests/hlsl/attributes.shader_test \
+	tests/hlsl/attrout-semantics.shader_test \
 	tests/hlsl/barriers.shader_test \
 	tests/hlsl/bitwise-assignment.shader_test \
 	tests/hlsl/bitwise.shader_test \
diff --git a/tests/hlsl/attrout-semantics.shader_test b/tests/hlsl/attrout-semantics.shader_test
new file mode 100644
index 000000000..91befd109
--- /dev/null
+++ b/tests/hlsl/attrout-semantics.shader_test
@@ -0,0 +1,75 @@
+[require]
+compile shader model 2.0
+compile shader model 3.0
+
+% This compiles since FOG is not referenced.
+[pixel shader]
+float4 main(float fog : FOG) : sv_target
+{
+    return 0;
+}
+
+% This compiles since PSIZE is not referenced
+[pixel shader]
+float4 main(float psize : PSIZE) : sv_target
+{
+    return 0;
+}
+
+[vertex shader]
+void main(float4 pos : position, out float fog : fog, out float4 out_pos : sv_position)
+{
+    fog = 1.0;
+    out_pos = pos;
+}
+
+[pixel shader]
+float4 main() : sv_target
+{
+    return 1.0;
+}
+
+[test]
+draw quad
+probe (0, 0) f32(1, 1, 1, 1)
+
+% FOG can be used as a pixel shader input in ps_3_0, but not ps_2_0.
+% On ps_4_0 and above, it behaves as a regular semantic, without sysval.
+[pixel shader fail(sm<3) todo(sm<3)]
+float4 main(float fog : FOG) : sv_target
+{
+    return fog;
+}
+
+[test]
+draw quad
+probe (0, 0) f32(1, 1, 1, 1)
+
+[vertex shader]
+void main(float4 pos : position, out float psize : psize, out float4 out_pos : sv_position)
+{
+    psize = 1.0;
+    out_pos = pos;
+}
+
+[pixel shader]
+float4 main() : sv_target
+{
+    return 1.0;
+}
+
+[test]
+draw quad
+probe (0, 0) f32(1, 1, 1, 1)
+
+% PSIZE cannot be used as a pixel shader input in ps_2_0 nor ps_3_0.
+% On ps_4_0 and above, it behaves as a regular semantic, without sysval.
+[pixel shader fail(sm<4) todo(sm<4)]
+float4 main(float psize : PSIZE) : sv_target
+{
+    return psize;
+}
+
+[test]
+draw quad
+probe (0, 0) f32(1, 1, 1, 1)