[PATCH vkd3d 6/7] vkd3d-shader/hlsl: Write SM4 casts to int.

[Zebediah Figura]

Signed-off-by: Zebediah Figura 
---
 libs/vkd3d-shader/hlsl_sm4.c | 42 ++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/libs/vkd3d-shader/hlsl_sm4.c b/libs/vkd3d-shader/hlsl_sm4.c
index cac71ef7e..250d30e60 100644
--- a/libs/vkd3d-shader/hlsl_sm4.c
+++ b/libs/vkd3d-shader/hlsl_sm4.c
@@ -1038,6 +1038,48 @@ static void write_sm4_expr(struct hlsl_ctx *ctx,
             break;
         }

+        case HLSL_TYPE_INT:
+        {
+            switch (expr->op)
+            {
+                case HLSL_OP1_CAST:
+                {
+                    const struct hlsl_type *src_type = arg1->data_type;
+
+                    /* Narrowing casts need to be lowered. */
+                    if (src_type->dimx != expr->node.data_type->dimx)
+                        hlsl_fixme(ctx, expr->node.loc, "Narrowing cast.");
+
+                    switch (src_type->base_type)
+                    {
+                        case HLSL_TYPE_HALF:
+                        case HLSL_TYPE_FLOAT:
+                            write_sm4_unary_op(buffer, VKD3D_SM4_OP_FTOI, &expr->node, arg1, 0);
+                            break;
+
+                        case HLSL_TYPE_BOOL:
+                        case HLSL_TYPE_INT:
+                        case HLSL_TYPE_UINT:
+                            write_sm4_unary_op(buffer, VKD3D_SM4_OP_MOV, &expr->node, arg1, 0);
+                            break;
+
+                        case HLSL_TYPE_DOUBLE:
+                            hlsl_fixme(ctx, expr->node.loc, "SM4 cast from double to int.");
+                            break;
+
+                        default:
+                            break;
+                    }
+                    break;
+                }
+
+                default:
+                    hlsl_fixme(ctx, expr->node.loc, "SM4 int "%s" expression.", debug_hlsl_expr_op(expr->op));
+                    break;
+            }
+            break;
+        }
+
         default:
         {
             struct vkd3d_string_buffer *string;