From 88a85024e2735b46575f6744e62f5b21a6449736 Mon Sep 17 00:00:00 2001
From: Conor McCarthy <cmccarthy@codeweavers.com>
Date: Fri, 21 Feb 2025 13:11:28 +1000
Subject: [PATCH] tests/hlsl: Test casts to 16-bit float.

---
 tests/hlsl/cast-to-half.shader_test | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/tests/hlsl/cast-to-half.shader_test b/tests/hlsl/cast-to-half.shader_test
index 4df5f6ab..a6846c08 100644
--- a/tests/hlsl/cast-to-half.shader_test
+++ b/tests/hlsl/cast-to-half.shader_test
@@ -35,3 +35,32 @@ float4 main() : sv_target
 [test]
 draw quad
 probe (0, 0) rgba (0.5, 0.5, 0.5, 0.5)
+
+[require]
+shader model >= 6.2
+native-16-bit
+
+[pixel shader]
+uniform float4 f;
+
+float4 main() : sv_target
+{
+    half4 h = f;
+    return h * half4(2.0, 2.0, 0.5, 0.5);
+}
+
+[test]
+uniform 0 float4 65536.0 32768.0 65536.0 32768.0
+draw quad
+% The shader runner doesn't support floating-point special literals like "inf",
+% but numbers beyond FLOAT_MAX consistently result in inf.
+probe (0, 0) rgba(1.0e39, 1.0e39, 1.0e39, 16384.0)
+uniform 0 float4 -65536.0 -32768.0 -65536.0 -32768.0
+draw quad
+probe (0, 0) rgba(-1.0e39, -1.0e39, -1.0e39, -16384.0)
+uniform 0 float4 0.000062 5.0e-8 0.000062 5.0e-8
+draw quad
+probe (0, 0) rgba(0.00012397766, 1.1920929e-7, 0.000030994415, 0.0) 1
+uniform 0 float4 -0.000062 -5.0e-8 -0.000062 -5.0e-8
+draw quad
+probe (0, 0) rgba(-0.00012397766, -1.1920929e-7, -0.000030994415, 0.0) 1