From 41c593ef46159645a5b34189952a97283aa05326 Mon Sep 17 00:00:00 2001
From: Francisco Casas <fcasas@codeweavers.com>
Date: Mon, 3 Nov 2025 10:55:07 -0300
Subject: [PATCH] tests/hlsl: Test clip/cull distance semantics as arrays.

Arrays are allowed for clip/cull distance semantics. Their maximum size
is 2 since that's the maximum amount of registers allowed for clip/cull
distances.

Indirect addressing of these arrays is allowed on shader model 6.

These tests are introduced after the transformation of clip/cull
input/outputs into arrays in vsir since otherwise they segfault.
---
 Makefile.am                                   |  3 +-
 ..._test => clip-cull-distance-1.shader_test} |  0
 tests/hlsl/clip-cull-distance-2.shader_test   | 90 +++++++++++++++++++
 3 files changed, 92 insertions(+), 1 deletion(-)
 rename tests/hlsl/{clip-cull-distance.shader_test => clip-cull-distance-1.shader_test} (100%)
 create mode 100644 tests/hlsl/clip-cull-distance-2.shader_test

diff --git a/Makefile.am b/Makefile.am
index 1f53f25d8..d9e06dba0 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -89,7 +89,8 @@ vkd3d_shader_tests = \
 	tests/hlsl/ceil.shader_test \
 	tests/hlsl/cf-cond-types.shader_test \
 	tests/hlsl/clamp.shader_test \
-	tests/hlsl/clip-cull-distance.shader_test \
+	tests/hlsl/clip-cull-distance-1.shader_test \
+	tests/hlsl/clip-cull-distance-2.shader_test \
 	tests/hlsl/clip-planes.shader_test \
 	tests/hlsl/clip.shader_test \
 	tests/hlsl/combined-samplers.shader_test \
diff --git a/tests/hlsl/clip-cull-distance.shader_test b/tests/hlsl/clip-cull-distance-1.shader_test
similarity index 100%
rename from tests/hlsl/clip-cull-distance.shader_test
rename to tests/hlsl/clip-cull-distance-1.shader_test
diff --git a/tests/hlsl/clip-cull-distance-2.shader_test b/tests/hlsl/clip-cull-distance-2.shader_test
new file mode 100644
index 000000000..e341a690d
--- /dev/null
+++ b/tests/hlsl/clip-cull-distance-2.shader_test
@@ -0,0 +1,90 @@
+[require]
+shader model >= 4.0
+
+[vertex shader todo(sm<6)]
+struct vertex
+{
+    float4 pos : SV_POSITION;
+    float2 clip[2] : SV_CLIPDISTANCE;
+};
+
+void main(float4 pos : POSITION, out vertex vertex)
+{
+    vertex.pos = pos;
+    // Only pixels closer to the center should remain.
+    vertex.clip[0] = float2(0.5 + pos.x, 0.5 - pos.x);
+    vertex.clip[1] = float2(0.5 + pos.y, 0.5 - pos.y);
+}
+
+[pixel shader todo(sm<6)]
+struct vertex
+{
+    float4 pos : SV_POSITION;
+    float2 clip[2] : SV_CLIPDISTANCE;
+};
+
+float4 main(in vertex vert) : SV_TARGET
+{
+    return round(10000 * float4(vert.clip[0], vert.clip[1]));
+}
+
+% clip[1] is ignored on WARP on SM6, this is probably a bug.
+[test]
+clear rtv 0 0.0 0.0 0.0 1.0
+todo(sm<6 | msl) draw quad
+                 probe ( 80,  60) f32(0.0, 0.0, 0.0, 1.0)
+                 probe ( 80, 180) f32(0.0, 0.0, 0.0, 1.0)
+                 probe ( 80, 300) f32(0.0, 0.0, 0.0, 1.0)
+                 probe ( 80, 420) f32(0.0, 0.0, 0.0, 1.0)
+if(!warp | sm<6) probe (240,  60) f32(0.0, 0.0, 0.0, 1.0)
+                 probe (240, 180) f32(2516, 7484, 7479, 2521)
+                 probe (240, 300) f32(2516, 7484, 2479, 7521)
+if(!warp | sm<6) probe (240, 420) f32(0.0, 0.0, 0.0, 1.0)
+if(!warp | sm<6) probe (400,  60) f32(0.0, 0.0, 0.0, 1.0)
+                 probe (400, 180) f32(7516, 2484, 7479, 2521)
+                 probe (400, 300) f32(7516, 2484, 2479, 7521)
+if(!warp | sm<6) probe (400, 420) f32(0.0, 0.0, 0.0, 1.0)
+                 probe (560,  60) f32(0.0, 0.0, 0.0, 1.0)
+                 probe (560, 180) f32(0.0, 0.0, 0.0, 1.0)
+                 probe (560, 300) f32(0.0, 0.0, 0.0, 1.0)
+                 probe (560, 420) f32(0.0, 0.0, 0.0, 1.0)
+
+[pixel shader]
+float4 main() : SV_TARGET
+{
+    return float4(1.0, 1.0, 1.0, 1.0);
+}
+
+[vertex shader fail(sm<6)]
+unsigned int i;
+
+struct vertex
+{
+    float4 pos : SV_POSITION;
+    float clip[2] : SV_CLIPDISTANCE;
+};
+
+void main(float4 pos : POSITION, out vertex vertex)
+{
+    vertex.pos = pos;
+    vertex.clip[0] = pos.x;
+    vertex.clip[1] = pos.y;
+    vertex.clip[i] = 1.0;
+}
+
+% clip[1] is ignored on WARP on SM6, this is probably a bug.
+[test]
+uniform 0 int 0
+clear rtv 0 0.0 0.0 0.0 1.0
+todo(sm<6 | msl) draw quad
+          probe (160, 120) f32(1.0, 1.0, 1.0, 1.0)
+if(!warp) probe (160, 360) f32(0.0, 0.0, 0.0, 1.0)
+          probe (480, 120) f32(1.0, 1.0, 1.0, 1.0)
+if(!warp) probe (480, 360) f32(0.0, 0.0, 0.0, 1.0)
+uniform 0 int 1
+clear rtv 0 0.0 0.0 0.0 1.0
+todo(sm<6 | msl) draw quad
+          probe (160, 120) f32(0.0, 0.0, 0.0, 1.0)
+          probe (160, 360) f32(0.0, 0.0, 0.0, 1.0)
+          probe (480, 120) f32(1.0, 1.0, 1.0, 1.0)
+          probe (480, 360) f32(1.0, 1.0, 1.0, 1.0)