[PATCH v2 3/3] vkd3d-shader/ir: Validate destination write masks depending on the dimension.

[Giovanni Mascellani]

From: Giovanni Mascellani

---
 libs/vkd3d-shader/ir.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libs/vkd3d-shader/ir.c b/libs/vkd3d-shader/ir.c
index f7b36eeb8..4465a95de 100644
--- a/libs/vkd3d-shader/ir.c
+++ b/libs/vkd3d-shader/ir.c
@@ -1600,6 +1600,11 @@ static void vsir_validate_dst_param(struct validation_context *ctx,
         validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_WRITE_MASK, "Destination has invalid write mask %#x.",
                 dst->write_mask);

+    if ((dst->reg.dimension != VSIR_DIMENSION_VEC4 && dst->write_mask != 0)
+            || (dst->reg.dimension == VSIR_DIMENSION_VEC4 && dst->write_mask == 0))
+        validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_WRITE_MASK, "Destination of dimension %u has invalid write mask %#x.",
+                dst->reg.dimension, dst->write_mask);
+
     if (dst->modifiers & ~VKD3DSPDM_MASK)
         validator_error(ctx, VKD3D_SHADER_ERROR_VSIR_INVALID_MODIFIERS, "Destination has invalid modifiers %#x.",
                 dst->modifiers);