Francisco Casas : tests: Test using single-component swizzles as indexes.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: 524029a0624117aa7c2255f93835f643e02c57c8
URL:    https://gitlab.winehq.org/wine/vkd3d/-/commit/524029a0624117aa7c2255f93835f6...

Author: Francisco Casas <fcasas(a)codeweavers.com>
Date:   Tue Jan 24 20:37:38 2023 -0300

tests: Test using single-component swizzles as indexes.

Vectors cannot be used as array indexes, however, single-component
swizzles (such as vec.x) can be used.

This suggests that single-component swizzles should actually be
scalars and not vectors of dimx = 1.

It is worth noting that the use of single-component swizzles on scalars
should still be allowed.

---

 tests/hlsl-vector-indexing.shader_test | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/tests/hlsl-vector-indexing.shader_test b/tests/hlsl-vector-indexing.shader_test
index f2d20c44..a7e671b8 100644
--- a/tests/hlsl-vector-indexing.shader_test
+++ b/tests/hlsl-vector-indexing.shader_test
@@ -25,3 +25,27 @@ float4 main() : SV_TARGET
 uniform 0 float4 1.0 2.0 3.0 4.0
 draw quad
 probe all rgba (1.0, 2.0, 2.0, 3.0)
+
+
+[pixel shader fail]
+float4 main() : SV_TARGET
+{
+    float4 vec = {0, 1, 2, 3};
+    int1 idx = {3};
+
+    return vec[idx];
+}
+
+
+[pixel shader todo]
+float4 main() : SV_TARGET
+{
+    float4 vec = {0, 1, 2, 3};
+    int2 idx = {1, 2};
+
+    return vec[idx.y];
+}
+
+[test]
+todo draw quad
+todo probe all rgba (2.0, 2.0, 2.0, 2.0)