[PATCH v3 vkd3d 2/3] vkd3d-shader/hlsl: Cast saturate() input to float.

[Nikolay Sivov]

Signed-off-by: Nikolay Sivov <nsivov at codeweavers.com>
---
 libs/vkd3d-shader/hlsl.y   |  7 ++++++-
 tests/saturate.shader_test | 11 +++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/libs/vkd3d-shader/hlsl.y b/libs/vkd3d-shader/hlsl.y
index 6c285c3..94eaec4 100644
--- a/libs/vkd3d-shader/hlsl.y
+++ b/libs/vkd3d-shader/hlsl.y
@@ -1698,7 +1698,12 @@ static bool intrinsic_round(struct hlsl_ctx *ctx,
 static bool intrinsic_saturate(struct hlsl_ctx *ctx,
         const struct parse_initializer *params, const struct vkd3d_shader_location *loc)
 {
-    return !!add_unary_arithmetic_expr(ctx, params->instrs, HLSL_OP1_SAT, params->args[0], loc);
+    struct hlsl_ir_node *arg;
+
+    if (!(arg = intrinsic_float_convert_arg(ctx, params, params->args[0], loc)))
+        return false;
+
+    return !!add_unary_arithmetic_expr(ctx, params->instrs, HLSL_OP1_SAT, arg, loc);
 }
 
 static const struct intrinsic_function
diff --git a/tests/saturate.shader_test b/tests/saturate.shader_test
index 0a954e7..e99df5b 100644
--- a/tests/saturate.shader_test
+++ b/tests/saturate.shader_test
@@ -8,3 +8,14 @@ float4 main(uniform float2 u) : sv_target
 uniform 0 float4 0.7 -0.1 0.0 0.0
 draw quad
 probe all rgba (0.7, 0.0, 1.0, 0.0)
+
+[pixel shader]
+float4 main(uniform int4 u) : sv_target
+{
+    return saturate(u);
+}
+
+[test]
+uniform 0 int4 -2 0 2 -1
+draw quad
+probe all rgba (0.0, 0.0, 1.0, 0.0)
-- 
2.34.1