media/libstagefright/codecs/m4v_h263/dec/src/zigzag_tab.cpp

/* ------------------------------------------------------------------
 * Copyright (C) 1998-2009 PacketVideo
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 * -------------------------------------------------------------------
 */

#include    "mp4dec_api.h"
#include    "mp4def.h"
#include    "zigzag.h"
/*----------------------------------------------------------------------------
; MACROS
; Define module specific macros here
----------------------------------------------------------------------------*/


/*----------------------------------------------------------------------------
; DEFINES
; Include all pre-processor statements here. Include conditional
; compile variables also.
----------------------------------------------------------------------------*/

/*----------------------------------------------------------------------------
; LOCAL FUNCTION DEFINITIONS
; Function Prototype declaration
----------------------------------------------------------------------------*/


/*----------------------------------------------------------------------------
; LOCAL STORE/BUFFER/POINTER DEFINITIONS
; Variable declaration - defined here and used outside this module
----------------------------------------------------------------------------*/
const int zigzag_inv[3*NCOEFF_BLOCK] =
{
    0,  1,  8, 16,  9,  2,  3, 10,
    17, 24, 32, 25, 18, 11,  4,  5,
    12, 19, 26, 33, 40, 48, 41, 34,
    27, 20, 13,  6,  7, 14, 21, 28,
    35, 42, 49, 56, 57, 50, 43, 36,
    29, 22, 15, 23, 30, 37, 44, 51,
    58, 59, 52, 45, 38, 31, 39, 46,
    53, 60, 61, 54, 47, 55, 62, 63,
//};

    /* Vertical inverse zigzag */
//const static Int zigzag_v_inv[NCOEFF_BLOCK] = {
    0, 8, 16, 24, 1, 9, 2, 10,
    17, 25, 32, 40, 48, 56, 57, 49,
    41, 33, 26, 18, 3, 11, 4, 12,
    19, 27, 34, 42, 50, 58, 35, 43,
    51, 59, 20, 28, 5, 13, 6, 14,
    21, 29, 36, 44, 52, 60, 37, 45,
    53, 61, 22, 30, 7, 15, 23, 31,
    38, 46, 54, 62, 39, 47, 55, 63,
//};
    /* Horizontal inverse zigzag*/
//const static Int zizag_h_inv[NCOEFF_BLOCK] = {
    0, 1, 2, 3, 8, 9, 16, 17,
    10, 11, 4, 5, 6, 7, 15, 14,
    13, 12, 19, 18, 24, 25, 32, 33,
    26, 27, 20, 21, 22, 23, 28, 29,
    30, 31, 34, 35, 40, 41, 48, 49,
    42, 43, 36, 37, 38, 39, 44, 45,
    46, 47, 50, 51, 56, 57, 58, 59,
    52, 53, 54, 55, 60, 61, 62, 63
};

/*----------------------------------------------------------------------------
; EXTERNAL FUNCTION REFERENCES
; Declare functions defined elsewhere and referenced in this module
----------------------------------------------------------------------------*/


/*----------------------------------------------------------------------------
; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
; Declare variables used in this module but defined elsewhere
----------------------------------------------------------------------------*/


/*----------------------------------------------------------------------------
; FUNCTION CODE
----------------------------------------------------------------------------*/


/*----------------------------------------------------------------------------
; Define all local variables
----------------------------------------------------------------------------*/


/*----------------------------------------------------------------------------
; Function body here
----------------------------------------------------------------------------*/


/*----------------------------------------------------------------------------
; Return nothing or data or data pointer
----------------------------------------------------------------------------*/