| /****************************************************************************** |
| * |
| * Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore |
| * |
| * 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. |
| * |
| ******************************************************************************/ |
| /** |
| ******************************************************************************* |
| * @file |
| * ihevc_macros.h |
| * |
| * @brief |
| * Macro definitions used in the codec |
| * |
| * @author |
| * Ittiam |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| #ifndef _IHEVC_MACROS_H_ |
| #define _IHEVC_MACROS_H_ |
| |
| #define RETURN_IF(cond, retval) if(cond) {return (retval);} |
| #define UNUSED(x) ((void)(x)) |
| |
| #define CLIP3(x, min, max) (((x) > (max)) ? (max) :(((x) < (min))? (min):(x))) |
| |
| #define MAX(x,y) (((x) > (y)) ? (x) :(y)) |
| #define MIN(x,y) (((x) < (y)) ? (x) :(y)) |
| #define SIGN(x) ((x) >= 0 ? ((x)>0 ? 1: 0) : -1) |
| #define ABS(x) ((((WORD32)(x)) > 0) ? (x) : -(x)) |
| |
| #define ALIGN1024(x) ((((x) + 1023) >> 10) << 10) |
| #define ALIGN256(x) ((((x) + 255) >> 8) << 8) |
| #define ALIGN128(x) ((((x) + 127) >> 7) << 7) |
| #define ALIGN64(x) ((((x) + 63) >> 6) << 6) |
| #define ALIGN32(x) ((((x) + 31) >> 5) << 5) |
| #define ALIGN16(x) ((((x) + 15) >> 4) << 4) |
| #define ALIGN8(x) ((((x) + 7) >> 3) << 3) |
| #define ALIGN4(x) ((((x) + 3) >> 2) << 2) |
| #define ALIGN2(x) ((((x) + 1) >> 1) << 1) |
| |
| #define ALIGN_POW2(ptr,align) ((((WORD32)ptr)+align-1)&(~(align-1))) |
| |
| /** Sets x bits to '1' starting from MSB */ |
| #define MSB_ONES(x) ((UWORD32)0xFFFFFFFF << (32 - (x))) |
| |
| /** Generates a pattern of x number of '01' in binary starting from MSB */ |
| #define DUP_MSB_01(x) ((UWORD32)0x55555555 << (32 - ((x) * 2))) |
| |
| /** Generates a pattern of x number of '10' in binary starting from MSB */ |
| #define DUP_MSB_10(x) ((UWORD32)0xAAAAAAAA << (32 - ((x) * 2))) |
| |
| /** Generates a pattern of x number of '11' in binary starting from MSB */ |
| #define DUP_MSB_11(x) ((UWORD32)0xFFFFFFFF << (32 - ((x) * 2))) |
| |
| /** Sets x bits to '1' starting from LSB */ |
| #define LSB_ONES(x) ((UWORD32)0xFFFFFFFF >> (32 - (x))) |
| |
| /** Generates a pattern of x number of '01' in binary starting from LSB */ |
| #define DUP_LSB_01(x) ((UWORD32)0x55555555 >> (32 - ((x) * 2))) |
| |
| /** Generates a pattern of x number of '10' in binary starting from LSB */ |
| #define DUP_LSB_10(x) ((UWORD32)0xAAAAAAAA >> (32 - ((x) * 2))) |
| |
| /** Generates a pattern of x number of '11' in binary starting from LSB */ |
| #define DUP_LSB_11(x) ((UWORD32)0xFFFFFFFF >> (32 - ((x) * 2))) |
| |
| /** Sets the bit in given position to 1 */ |
| #define BITSET(x, pos) ((x) | (1 << (pos))) |
| |
| /** Swap two variables */ |
| #define SWAP(X,Y) \ |
| { \ |
| (X) = (X) ^ (Y); \ |
| (Y) = (X) ^ (Y); \ |
| (X) = (X) ^ (Y); \ |
| } |
| #endif /*_IHEVCD_MACROS_H_*/ |