| /* |
| * Copyright (c) 2011 Apple Inc. All rights reserved. |
| * |
| * @APPLE_APACHE_LICENSE_HEADER_START@ |
| * |
| * 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. |
| * |
| * @APPLE_APACHE_LICENSE_HEADER_END@ |
| */ |
| |
| /* |
| File: aglib.h |
| |
| Copyright: (C) 2001-2011 Apple, Inc. |
| */ |
| |
| #ifndef AGLIB_H |
| #define AGLIB_H |
| |
| #include <stdint.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #define QBSHIFT 9 |
| #define QB (1<<QBSHIFT) |
| #define PB0 40 |
| #define MB0 10 |
| #define KB0 14 |
| #define MAX_RUN_DEFAULT 255 |
| |
| #define MMULSHIFT 2 |
| #define MDENSHIFT (QBSHIFT - MMULSHIFT - 1) |
| #define MOFF ((1<<(MDENSHIFT-2))) |
| |
| #define BITOFF 24 |
| |
| /* Max. prefix of 1's. */ |
| #define MAX_PREFIX_16 9 |
| #define MAX_PREFIX_TOLONG_16 15 |
| #define MAX_PREFIX_32 9 |
| |
| /* Max. bits in 16-bit data type */ |
| #define MAX_DATATYPE_BITS_16 16 |
| |
| typedef struct AGParamRec |
| { |
| uint32_t mb, mb0, pb, kb, wb, qb; |
| uint32_t fw, sw; |
| |
| uint32_t maxrun; |
| |
| // fw = 1, sw = 1; |
| |
| } AGParamRec, *AGParamRecPtr; |
| |
| struct BitBuffer; |
| |
| void set_standard_ag_params(AGParamRecPtr params, uint32_t fullwidth, uint32_t sectorwidth); |
| void set_ag_params(AGParamRecPtr params, uint32_t m, uint32_t p, uint32_t k, uint32_t f, uint32_t s, uint32_t maxrun); |
| |
| int32_t dyn_comp(AGParamRecPtr params, int32_t * pc, struct BitBuffer * bitstream, int32_t numSamples, int32_t bitSize, uint32_t * outNumBits); |
| int32_t dyn_decomp(AGParamRecPtr params, struct BitBuffer * bitstream, int32_t * pc, int32_t numSamples, int32_t maxSize, uint32_t * outNumBits); |
| |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif //#ifndef AGLIB_H |