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g-alleve.ads (Low Level Vector type definitions): Map each to the associated vector view instead of all to the unsigned char view. 

2007-04-06  Olivier Hainque  <hainque@adacore.com>

	* g-alleve.ads (Low Level Vector type definitions): Map each to the
	associated vector view instead of all to the unsigned char view.

	* g-altcon.adb (Generic_Conversions): New internal generic package,
	offering facilities for all the Vector/View conversion routines
	implemented by this unit.
	(To_View/To_Vector - all versions): Reimplemented in a systematic
	manner, using the internal Generic_Conversions facilities.

From-SVN: r123570
This commit is contained in:
Olivier Hainque 2007-04-06 11:21:48 +02:00 committed by Arnaud Charlet
parent aad93b5537
commit 9a8bd0b556
2 changed files with 409 additions and 380 deletions
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23
gcc/ada/g-alleve.ads
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@ -7,7 +7,7 @@
-- S p e c --
-- (Soft Binding Version) --
-- --
-- Copyright (C) 2004-2005, Free Software Foundation, Inc. --
-- Copyright (C) 2004-2006, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
@ -317,21 +317,20 @@ private
-- We simply use the natural array definitions corresponding to each
-- user-level vector type.
type LL_VUI is new VUC_View;
type LL_VSI is new VUC_View;
type LL_VUI is new VUI_View;
type LL_VSI is new VSI_View;
type LL_VBI is new VBI_View;
type LL_VUS is new VUC_View;
type LL_VSS is new VUC_View;
type LL_VUS is new VUS_View;
type LL_VSS is new VSS_View;
type LL_VBS is new VBS_View;
type LL_VUC is new VUC_View;
type LL_VSC is new VUC_View;
type LL_VSC is new VSC_View;
type LL_VBC is new VBC_View;
type LL_VF is new VUC_View;
type LL_VBC is new VUC_View;
type LL_VBS is new VUC_View;
type LL_VBI is new VUC_View;
type LL_VP is new VUC_View;
type LL_VF is new VF_View;
type LL_VP is new VP_View;
------------------------------------
-- Low level functional interface --

766
gcc/ada/g-altcon.adb
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@ -6,7 +6,7 @@
-- --
-- B o d y --
-- --
-- Copyright (C) 2005, Free Software Foundation, Inc. --
-- Copyright (C) 2005-2006, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
@ -35,450 +35,480 @@ with Ada.Unchecked_Conversion;
with System; use System;
with GNAT.Altivec.Low_Level_Interface; use GNAT.Altivec.Low_Level_Interface;
with GNAT.Altivec.Low_Level_Vectors; use GNAT.Altivec.Low_Level_Vectors;
package body GNAT.Altivec.Conversions is
function To_Varray_unsigned_char is
new Ada.Unchecked_Conversion (Varray_signed_char,
Varray_unsigned_char);
-- All the vector/view conversions operate similarily: bare unchecked
-- conversion on big endian targets, and elements permutation on little
-- endian targets. We call "Mirroring" the elements permutation process.
function To_Varray_unsigned_char is
new Ada.Unchecked_Conversion (Varray_bool_char,
Varray_unsigned_char);
-- We would like to provide a generic version of the conversion routines
-- and just have a set of "renaming as body" declarations to satisfy the
-- public interface. This unfortunately prevents inlining, which we must
-- preserve at least for the hard binding.
function To_Varray_unsigned_short is
new Ada.Unchecked_Conversion (Varray_signed_short,
Varray_unsigned_short);
-- We instead provide a generic version of facilities needed by all the
-- conversion routines and use them repeatedly.
function To_Varray_unsigned_short is
new Ada.Unchecked_Conversion (Varray_bool_short,
Varray_unsigned_short);
generic
type Vitem_Type is private;
function To_Varray_unsigned_short is
new Ada.Unchecked_Conversion (Varray_pixel,
Varray_unsigned_short);
type Varray_Index_Type is range <>;
type Varray_Type is array (Varray_Index_Type) of Vitem_Type;
function To_Varray_unsigned_int is
new Ada.Unchecked_Conversion (Varray_signed_int,
Varray_unsigned_int);
type Vector_Type is private;
type View_Type is private;
function To_Varray_unsigned_int is
new Ada.Unchecked_Conversion (Varray_bool_int,
Varray_unsigned_int);
package Generic_Conversions is
function To_Varray_unsigned_int is
new Ada.Unchecked_Conversion (Varray_float,
Varray_unsigned_int);
subtype Varray is Varray_Type;
-- This provides an easy common way to refer to the type parameter
-- in contexts where a specific instance of this package is "use"d.
function To_Varray_signed_char is
new Ada.Unchecked_Conversion (Varray_unsigned_char,
Varray_signed_char);
procedure Mirror (A : Varray_Type; Into : out Varray_Type);
pragma Inline (Mirror);
-- Mirror the elements of A into INTO, not touching the per-element
-- internal ordering.
function To_Varray_bool_char is
new Ada.Unchecked_Conversion (Varray_unsigned_char,
Varray_bool_char);
-- A procedure with an out parameter is a bit heavier to use than a
-- function but reduces the amount of temporary creations around the
-- call. Instances are typically not front-end inlined. They can still
-- be back-end inlined on request with the proper command-line option.
function To_Varray_signed_short is
new Ada.Unchecked_Conversion (Varray_unsigned_short,
Varray_signed_short);
-- Below are Unchecked Conversion routines for various purposes,
-- relying on internal knowledge about the bits layout in the different
-- types (all 128 value bits blocks).
function To_Varray_bool_short is
new Ada.Unchecked_Conversion (Varray_unsigned_short,
Varray_bool_short);
-- View<->Vector straight bitwise conversions on BE targets.
function To_Varray_pixel is
new Ada.Unchecked_Conversion (Varray_unsigned_short,
Varray_pixel);
function UNC_To_Vector is
new Ada.Unchecked_Conversion (View_Type, Vector_Type);
function To_Varray_signed_int is
new Ada.Unchecked_Conversion (Varray_unsigned_int,
Varray_signed_int);
function UNC_To_View is
new Ada.Unchecked_Conversion (Vector_Type, View_Type);
function To_Varray_bool_int is
new Ada.Unchecked_Conversion (Varray_unsigned_int,
Varray_bool_int);
-- Varray->Vector/View for returning mirrored results on LE targets.
function To_Varray_float is
new Ada.Unchecked_Conversion (Varray_unsigned_int,
Varray_float);
function UNC_To_Vector is
new Ada.Unchecked_Conversion (Varray_Type, Vector_Type);
function To_VUC is new Ada.Unchecked_Conversion (VUC_View, VUC);
function To_VSC is new Ada.Unchecked_Conversion (VSC_View, VSC);
function To_VBC is new Ada.Unchecked_Conversion (VBC_View, VBC);
function To_VUS is new Ada.Unchecked_Conversion (VUS_View, VUS);
function To_VSS is new Ada.Unchecked_Conversion (VSS_View, VSS);
function To_VBS is new Ada.Unchecked_Conversion (VBS_View, VBS);
function To_VUI is new Ada.Unchecked_Conversion (VUI_View, VUI);
function To_VSI is new Ada.Unchecked_Conversion (VSI_View, VSI);
function To_VBI is new Ada.Unchecked_Conversion (VBI_View, VBI);
function To_VF is new Ada.Unchecked_Conversion (VF_View, VF);
function To_VP is new Ada.Unchecked_Conversion (VP_View, VP);
function UNC_To_View is
new Ada.Unchecked_Conversion (Varray_Type, View_Type);
function To_VUC_View is new Ada.Unchecked_Conversion (VUC, VUC_View);
function To_VSC_View is new Ada.Unchecked_Conversion (VSC, VSC_View);
function To_VBC_View is new Ada.Unchecked_Conversion (VBC, VBC_View);
function To_VUS_View is new Ada.Unchecked_Conversion (VUS, VUS_View);
function To_VSS_View is new Ada.Unchecked_Conversion (VSS, VSS_View);
function To_VBS_View is new Ada.Unchecked_Conversion (VBS, VBS_View);
function To_VUI_View is new Ada.Unchecked_Conversion (VUI, VUI_View);
function To_VSI_View is new Ada.Unchecked_Conversion (VSI, VSI_View);
function To_VBI_View is new Ada.Unchecked_Conversion (VBI, VBI_View);
function To_VF_View is new Ada.Unchecked_Conversion (VF, VF_View);
function To_VP_View is new Ada.Unchecked_Conversion (VP, VP_View);
-- Vector/View->Varray for to-be-permuted source on LE targets.
pragma Warnings (Off, Default_Bit_Order);
function UNC_To_Varray is
new Ada.Unchecked_Conversion (Vector_Type, Varray_Type);
---------------
-- To_Vector --
---------------
function UNC_To_Varray is
new Ada.Unchecked_Conversion (View_Type, Varray_Type);
end Generic_Conversions;
package body Generic_Conversions is
procedure Mirror (A : Varray_Type; Into : out Varray_Type) is
begin
for J in A'Range loop
Into (J) := A (A'Last - J + A'First);
end loop;
end Mirror;
end Generic_Conversions;
-- Now we declare the instances and implement the interface function
-- bodies simply calling the instantiated routines.
---------------------
-- Char components --
---------------------
package SC_Conversions is new Generic_Conversions
(signed_char, Vchar_Range, Varray_signed_char, VSC, VSC_View);
function To_Vector (S : VSC_View) return VSC is
use SC_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return To_VSC (S);
return UNC_To_Vector (S);
else
declare
Result : LL_VUC;
VS : constant VUC_View :=
(Values => To_Varray_unsigned_char (S.Values));
M : Varray;
begin
Result := To_Vector (VS);
return To_LL_VSC (Result);
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_Vector (M);
end;
end if;
end To_Vector;
function To_Vector (S : VBC_View) return VBC is
begin
if Default_Bit_Order = High_Order_First then
return To_VBC (S);
else
declare
Result : LL_VUC;
VS : constant VUC_View :=
(Values => To_Varray_unsigned_char (S.Values));
begin
Result := To_Vector (VS);
return To_LL_VBC (Result);
end;
end if;
end To_Vector;
function To_Vector (S : VSS_View) return VSS is
begin
if Default_Bit_Order = High_Order_First then
return To_VSS (S);
else
declare
Result : LL_VUS;
VS : constant VUS_View :=
(Values => To_Varray_unsigned_short (S.Values));
begin
Result := To_Vector (VS);
return VSS (To_LL_VSS (Result));
end;
end if;
end To_Vector;
function To_Vector (S : VBS_View) return VBS is
begin
if Default_Bit_Order = High_Order_First then
return To_VBS (S);
else
declare
Result : LL_VUS;
VS : constant VUS_View :=
(Values => To_Varray_unsigned_short (S.Values));
begin
Result := To_Vector (VS);
return To_LL_VBS (Result);
end;
end if;
end To_Vector;
function To_Vector (S : VP_View) return VP is
begin
if Default_Bit_Order = High_Order_First then
return To_VP (S);
else
declare
Result : LL_VUS;
VS : constant VUS_View :=
(Values => To_Varray_unsigned_short (S.Values));
begin
Result := To_Vector (VS);
return To_LL_VP (Result);
end;
end if;
end To_Vector;
function To_Vector (S : VSI_View) return VSI is
begin
if Default_Bit_Order = High_Order_First then
return To_VSI (S);
else
declare
Result : LL_VUI;
VS : constant VUI_View :=
(Values => To_Varray_unsigned_int (S.Values));
begin
Result := To_Vector (VS);
return To_LL_VSI (Result);
end;
end if;
end To_Vector;
function To_Vector (S : VBI_View) return VBI is
begin
if Default_Bit_Order = High_Order_First then
return To_VBI (S);
else
declare
Result : LL_VUI;
VS : constant VUI_View :=
(Values => To_Varray_unsigned_int (S.Values));
begin
Result := To_Vector (VS);
return To_LL_VBI (Result);
end;
end if;
end To_Vector;
function To_Vector (S : VF_View) return VF is
begin
if Default_Bit_Order = High_Order_First then
return To_VF (S);
else
declare
Result : LL_VUI;
VS : constant VUI_View :=
(Values => To_Varray_unsigned_int (S.Values));
begin
Result := To_Vector (VS);
return To_LL_VF (Result);
end;
end if;
end To_Vector;
function To_Vector (S : VUC_View) return VUC is
begin
if Default_Bit_Order = High_Order_First then
return To_VUC (S);
else
declare
Result : VUC_View;
begin
for J in Vchar_Range'Range loop
Result.Values (J) :=
S.Values (Vchar_Range'Last - J + Vchar_Range'First);
end loop;
return To_VUC (Result);
end;
end if;
end To_Vector;
function To_Vector (S : VUS_View) return VUS is
begin
if Default_Bit_Order = High_Order_First then
return To_VUS (S);
else
declare
Result : VUS_View;
begin
for J in Vshort_Range'Range loop
Result.Values (J) :=
S.Values (Vshort_Range'Last - J + Vshort_Range'First);
end loop;
return To_VUS (Result);
end;
end if;
end To_Vector;
function To_Vector (S : VUI_View) return VUI is
begin
if Default_Bit_Order = High_Order_First then
return To_VUI (S);
else
declare
Result : VUI_View;
begin
for J in Vint_Range'Range loop
Result.Values (J) :=
S.Values (Vint_Range'Last - J + Vint_Range'First);
end loop;
return To_VUI (Result);
end;
end if;
end To_Vector;
--------------
-- To_View --
--------------
function To_View (S : VSC) return VSC_View is
use SC_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return To_VSC_View (S);
return UNC_To_View (S);
else
declare
Result : VUC_View;
M : Varray;
begin
Result := To_View (To_LL_VUC (S));
return (Values => To_Varray_signed_char (Result.Values));
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_View (M);
end;
end if;
end To_View;
function To_View (S : VBC) return VBC_View is
begin
if Default_Bit_Order = High_Order_First then
return To_VBC_View (S);
else
declare
Result : VUC_View;
begin
Result := To_View (To_LL_VUC (S));
return (Values => To_Varray_bool_char (Result.Values));
end;
end if;
end To_View;
--
function To_View (S : VSS) return VSS_View is
begin
if Default_Bit_Order = High_Order_First then
return To_VSS_View (S);
else
declare
Result : VUS_View;
begin
Result := To_View (To_LL_VUS (S));
return (Values => To_Varray_signed_short (Result.Values));
end;
end if;
end To_View;
package UC_Conversions is new Generic_Conversions
(unsigned_char, Vchar_Range, Varray_unsigned_char, VUC, VUC_View);
function To_View (S : VBS) return VBS_View is
function To_Vector (S : VUC_View) return VUC is
use UC_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return To_VBS_View (S);
return UNC_To_Vector (S);
else
declare
Result : VUS_View;
M : Varray;
begin
Result := To_View (To_LL_VUS (S));
return (Values => To_Varray_bool_short (Result.Values));
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_Vector (M);
end;
end if;
end To_View;
function To_View (S : VP) return VP_View is
begin
if Default_Bit_Order = High_Order_First then
return To_VP_View (S);
else
declare
Result : VUS_View;
begin
Result := To_View (To_LL_VUS (S));
return (Values => To_Varray_pixel (Result.Values));
end;
end if;
end To_View;
function To_View (S : VSI) return VSI_View is
begin
if Default_Bit_Order = High_Order_First then
return To_VSI_View (S);
else
declare
Result : VUI_View;
begin
Result := To_View (To_LL_VUI (S));
return (Values => To_Varray_signed_int (Result.Values));
end;
end if;
end To_View;
function To_View (S : VBI) return VBI_View is
begin
if Default_Bit_Order = High_Order_First then
return To_VBI_View (S);
else
declare
Result : VUI_View;
begin
Result := To_View (To_LL_VUI (S));
return (Values => To_Varray_bool_int (Result.Values));
end;
end if;
end To_View;
function To_View (S : VF) return VF_View is
begin
if Default_Bit_Order = High_Order_First then
return To_VF_View (S);
else
declare
Result : VUI_View;
begin
Result := To_View (To_LL_VUI (S));
return (Values => To_Varray_float (Result.Values));
end;
end if;
end To_View;
end To_Vector;
function To_View (S : VUC) return VUC_View is
use UC_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return To_VUC_View (S);
return UNC_To_View (S);
else
declare
VS : constant VUC_View := To_VUC_View (S);
Result : VUC_View;
M : Varray;
begin
for J in Vchar_Range'Range loop
Result.Values (J) :=
VS.Values (Vchar_Range'Last - J + Vchar_Range'First);
end loop;
return Result;
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_View (M);
end;
end if;
end To_View;
--
package BC_Conversions is new Generic_Conversions
(bool_char, Vchar_Range, Varray_bool_char, VBC, VBC_View);
function To_Vector (S : VBC_View) return VBC is
use BC_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_Vector (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_Vector (M);
end;
end if;
end To_Vector;
function To_View (S : VBC) return VBC_View is
use BC_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_View (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_View (M);
end;
end if;
end To_View;
----------------------
-- Short components --
----------------------
package SS_Conversions is new Generic_Conversions
(signed_short, Vshort_Range, Varray_signed_short, VSS, VSS_View);
function To_Vector (S : VSS_View) return VSS is
use SS_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_Vector (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_Vector (M);
end;
end if;
end To_Vector;
function To_View (S : VSS) return VSS_View is
use SS_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_View (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_View (M);
end;
end if;
end To_View;
--
package US_Conversions is new Generic_Conversions
(unsigned_short, Vshort_Range, Varray_unsigned_short, VUS, VUS_View);
function To_Vector (S : VUS_View) return VUS is
use US_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_Vector (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_Vector (M);
end;
end if;
end To_Vector;
function To_View (S : VUS) return VUS_View is
use US_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return To_VUS_View (S);
return UNC_To_View (S);
else
declare
VS : constant VUS_View := To_VUS_View (S);
Result : VUS_View;
M : Varray;
begin
for J in Vshort_Range'Range loop
Result.Values (J) :=
VS.Values (Vshort_Range'Last - J + Vshort_Range'First);
end loop;
return Result;
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_View (M);
end;
end if;
end To_View;
function To_View (S : VUI) return VUI_View is
--
package BS_Conversions is new Generic_Conversions
(bool_short, Vshort_Range, Varray_bool_short, VBS, VBS_View);
function To_Vector (S : VBS_View) return VBS is
use BS_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return To_VUI_View (S);
return UNC_To_Vector (S);
else
declare
VS : constant VUI_View := To_VUI_View (S);
Result : VUI_View;
M : Varray;
begin
for J in Vint_Range'Range loop
Result.Values (J) :=
VS.Values (Vint_Range'Last - J + Vint_Range'First);
end loop;
return Result;
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_Vector (M);
end;
end if;
end To_Vector;
function To_View (S : VBS) return VBS_View is
use BS_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_View (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_View (M);
end;
end if;
end To_View;
--------------------
-- Int components --
--------------------
package SI_Conversions is new Generic_Conversions
(signed_int, Vint_Range, Varray_signed_int, VSI, VSI_View);
function To_Vector (S : VSI_View) return VSI is
use SI_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_Vector (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_Vector (M);
end;
end if;
end To_Vector;
function To_View (S : VSI) return VSI_View is
use SI_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_View (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_View (M);
end;
end if;
end To_View;
--
package UI_Conversions is new Generic_Conversions
(unsigned_int, Vint_Range, Varray_unsigned_int, VUI, VUI_View);
function To_Vector (S : VUI_View) return VUI is
use UI_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_Vector (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_Vector (M);
end;
end if;
end To_Vector;
function To_View (S : VUI) return VUI_View is
use UI_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_View (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_View (M);
end;
end if;
end To_View;
--
package BI_Conversions is new Generic_Conversions
(bool_int, Vint_Range, Varray_bool_int, VBI, VBI_View);
function To_Vector (S : VBI_View) return VBI is
use BI_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_Vector (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_Vector (M);
end;
end if;
end To_Vector;
function To_View (S : VBI) return VBI_View is
use BI_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_View (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_View (M);
end;
end if;
end To_View;
----------------------
-- Float components --
----------------------
package F_Conversions is new Generic_Conversions
(C_float, Vfloat_Range, Varray_float, VF, VF_View);
function To_Vector (S : VF_View) return VF is
use F_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_Vector (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_Vector (M);
end;
end if;
end To_Vector;
function To_View (S : VF) return VF_View is
use F_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_View (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_View (M);
end;
end if;
end To_View;
----------------------
-- Pixel components --
----------------------
package P_Conversions is new Generic_Conversions
(pixel, Vpixel_Range, Varray_pixel, VP, VP_View);
function To_Vector (S : VP_View) return VP is
use P_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_Vector (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_Vector (M);
end;
end if;
end To_Vector;
function To_View (S : VP) return VP_View is
use P_Conversions;
begin
if Default_Bit_Order = High_Order_First then
return UNC_To_View (S);
else
declare
M : Varray;
begin
Mirror (UNC_To_Varray (S), Into => M);
return UNC_To_View (M);
end;
end if;
end To_View;