1 /* 2 * Copyright © 2014 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the 6 * "Software"), to deal in the Software without restriction, including 7 * without limitation the rights to use, copy, modify, merge, publish, 8 * distribute, sub license, and/or sell copies of the Software, and to 9 * permit persons to whom the Software is furnished to do so, subject to 10 * the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the 13 * next paragraph) shall be included in all copies or substantial portions 14 * of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 19 * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR 20 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 21 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 22 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: 25 * Zhao Yakui <yakui.zhao@intel.com> 26 * 27 */ 28 29 /* 30 * Copyright (c) 2010, The WebM Project authors. All rights reserved. 31 * 32 * An additional intellectual property rights grant can be found 33 * in the file LIBVPX_PATENTS. All contributing project authors may 34 * be found in the LIBVPX_AUTHORS file. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions are met: 38 39 * Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 42 * Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in 44 * the documentation and/or other materials provided with the distribution. 45 46 * Neither the name of Google, nor the WebM Project, nor the names 47 * of its contributors may be used to endorse or promote products 48 * derived from this software without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 54 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 61 * 62 */ 63 64 #ifndef __INTEL_HOSTVLD_VP9_ENGINE_H__ 65 #define __INTEL_HOSTVLD_VP9_ENGINE_H__ 66 67 #include "intel_hybrid_hostvld_vp9_internal.h" 68 69 #define BYTE_BITS 8 70 #define BAC_ENG_MAX_RANGE 255 71 #define BAC_ENG_VALUE_BITS ( BYTE_BITS * sizeof(INTEL_HOSTVLD_VP9_BAC_VALUE) ) 72 #define BAC_ENG_MASSIVE_BITS 0x40000000 73 #define BAC_ENG_VALUE_HEAD_RSRV BYTE_BITS 74 #define BAC_ENG_VALUE_TAIL_RSRV BYTE_BITS 75 #define BAC_ENG_PROB_BITS 8 76 #define BAC_ENG_PROB_RANGE ( 1 << BAC_ENG_PROB_BITS ) 77 #define BAC_ENG_PROB_HALF ( 1 << (BAC_ENG_PROB_BITS-1) ) 78 79 // Read 16-bit or Read 8-bit for the last even byte to fill BAC engine 80 #define INTEL_HOSTVLD_VP9_BACENGINE_FILL() \ 81 do \ 82 { \ 83 if (iCount < BAC_ENG_VALUE_HEAD_RSRV) \ 84 { \ 85 if ((pBacEngine->pBufEnd - pBacEngine->pBuf) >= 2 ) { \ 86 register UINT16 ui16RegOp = *((PUINT16)(pBacEngine->pBuf)); \ 87 BacValue |= (ui16RegOp & 0xFF) << (BAC_ENG_VALUE_BITS - BYTE_BITS - iCount); \ 88 BacValue |= (ui16RegOp & 0xFF00) << (BYTE_BITS - iCount); \ 89 pBacEngine->pBuf += 2; \ 90 iCount += (BYTE_BITS << 1); \ 91 } else { \ 92 register UINT8 ui8RegOp = *((PUINT8)(pBacEngine->pBuf)); \ 93 BacValue |= (ui8RegOp & 0xFF) << (BAC_ENG_VALUE_BITS - BYTE_BITS - iCount); \ 94 pBacEngine->pBuf += 1; \ 95 iCount += BAC_ENG_MASSIVE_BITS; \ 96 } \ 97 } \ 98 } while (0) 99 100 extern const UCHAR g_Vp9NormTable[BAC_ENG_MAX_RANGE+1]; 101 102 INT Intel_HostvldVp9_BacEngineInit( 103 PINTEL_HOSTVLD_VP9_BAC_ENGINE pBacEngine, 104 PUCHAR pBuf, 105 DWORD dwBufSize); 106 107 INT Intel_HostvldVp9_BacEngineReadBit( 108 PINTEL_HOSTVLD_VP9_BAC_ENGINE pBacEngine, 109 INT iProb); 110 111 INT Intel_HostvldVp9_BacEngineReadSingleBit( 112 PINTEL_HOSTVLD_VP9_BAC_ENGINE pBacEngine); 113 114 INT Intel_HostvldVp9_BacEngineReadMultiBits( 115 PINTEL_HOSTVLD_VP9_BAC_ENGINE pBacEngine, 116 register INT iNumBits); 117 118 INT Intel_HostvldVp9_BacEngineReadTree( 119 PINTEL_HOSTVLD_VP9_BAC_ENGINE pBacEngine, 120 INTEL_HOSTVLD_VP9_TKN_TREE TknTree); 121 122 #endif // __INTEL_HOSTVLD_VP9_ENGINE_H__ 123