[PATCH 2/2] vkd3d-shader/spirv: Check for FEATURE_FLOAT64 when double precision use is flagged.

[Conor McCarthy]

From: Conor McCarthy

---
 libs/vkd3d-shader/spirv.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index e837fc2ef..b2fc98f7f 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -5581,7 +5581,16 @@ static void spirv_compiler_emit_dcl_global_flags(struct spirv_compiler *compiler

if (flags & (VKD3DSGF_ENABLE_DOUBLE_PRECISION_FLOAT_OPS | VKD3DSGF_ENABLE_11_1_DOUBLE_EXTENSIONS))
     {
-        vkd3d_spirv_enable_capability(&compiler->spirv_builder, SpvCapabilityFloat64);
+        if (compiler->features & VKD3D_SHADER_COMPILE_OPTION_FEATURE_FLOAT64)
+        {
+            vkd3d_spirv_enable_capability(&compiler->spirv_builder, SpvCapabilityFloat64);
+        }
+        else
+        {
+            WARN("Unsupported 64-bit float ops.\n");
+            spirv_compiler_error(compiler, VKD3D_SHADER_ERROR_SPV_UNSUPPORTED_FEATURE,
+                    "The target environment does not support 64-bit floating point.");
+        }
         flags &= ~(VKD3DSGF_ENABLE_DOUBLE_PRECISION_FLOAT_OPS | VKD3DSGF_ENABLE_11_1_DOUBLE_EXTENSIONS);
     }