[PATCH vkd3d v2 5/7] vkd3d-shader/hlsl: Write SM4 casts to float.

[Giovanni Mascellani]

Signed-off-by: Giovanni Mascellani <gmascellani at codeweavers.com>

Il 10/09/21 04:11, Zebediah Figura ha scritto:
> Signed-off-by: Zebediah Figura <zfigura at codeweavers.com>
> ---
>   libs/vkd3d-shader/hlsl_sm4.c | 37 ++++++++++++++++++++++++++++++++++++
>   1 file changed, 37 insertions(+)
> 
> diff --git a/libs/vkd3d-shader/hlsl_sm4.c b/libs/vkd3d-shader/hlsl_sm4.c
> index 160da47fd..ce749b692 100644
> --- a/libs/vkd3d-shader/hlsl_sm4.c
> +++ b/libs/vkd3d-shader/hlsl_sm4.c
> @@ -981,6 +981,43 @@ static void write_sm4_expr(struct hlsl_ctx *ctx,
>           {
>               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.\n");
> +
> +                    switch (src_type->base_type)
> +                    {
> +                        case HLSL_TYPE_HALF:
> +                        case HLSL_TYPE_FLOAT:
> +                            write_sm4_unary_op(buffer, VKD3D_SM4_OP_MOV, &expr->node, arg1, 0);
> +                            break;
> +
> +                        case HLSL_TYPE_INT:
> +                            write_sm4_unary_op(buffer, VKD3D_SM4_OP_ITOF, &expr->node, arg1, 0);
> +                            break;
> +
> +                        case HLSL_TYPE_UINT:
> +                            write_sm4_unary_op(buffer, VKD3D_SM4_OP_UTOF, &expr->node, arg1, 0);
> +                            break;
> +
> +                        case HLSL_TYPE_BOOL:
> +                            hlsl_fixme(ctx, expr->node.loc, "Casts from bool to float are not implemented.\n");
> +                            break;
> +
> +                        case HLSL_TYPE_DOUBLE:
> +                            hlsl_fixme(ctx, expr->node.loc, "Casts from double to float are not implemented.\n");
> +                            break;
> +
> +                        default:
> +                            break;
> +                    }
> +                    break;
> +                }
> +
>                   case HLSL_OP1_NEG:
>                       write_sm4_unary_op(buffer, VKD3D_SM4_OP_MOV, &expr->node, arg1, VKD3D_SM4_REGISTER_MODIFIER_NEGATE);
>                       break;
>