1 /****************************************************************************** 2 * 3 * Copyright (C) 2015 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ***************************************************************************** 18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 */ 20 /** 21 ******************************************************************************* 22 * @file 23 * ih264e_platform_macros.h 24 * 25 * @brief 26 * Contains platform specific routines used for codec context intialization 27 * 28 * @author 29 * ittiam 30 * 31 * @remarks 32 * none 33 * 34 ******************************************************************************* 35 */ 36 37 38 #ifndef IH264E_PLATFORM_MACROS_H_ 39 #define IH264E_PLATFORM_MACROS_H_ 40 41 #define DATA_SYNC() 42 /*****************************************************************************/ 43 /* Extern Function Declarations */ 44 /*****************************************************************************/ 45 46 /** 47 ******************************************************************************* 48 * 49 * @brief Initialize the intra/inter/transform/deblk function pointers of 50 * codec context 51 * 52 * @par Description: the current routine initializes the function pointers of 53 * codec context basing on the architecture in use 54 * 55 * @param[in] ps_codec 56 * Codec context pointer 57 * 58 * @returns none 59 * 60 * @remarks none 61 * 62 ******************************************************************************* 63 */ 64 void ih264e_init_function_ptr_generic(codec_t *ps_codec); 65 66 /** 67 ******************************************************************************* 68 * 69 * @brief Initialize the intra/inter/transform/deblk function pointers of 70 * codec context 71 * 72 * @par Description: the current routine initializes the function pointers of 73 * codec context basing on the architecture in use 74 * 75 * @param[in] ps_codec 76 * Codec context pointer 77 * 78 * @returns none 79 * 80 * @remarks none 81 * 82 ******************************************************************************* 83 */ 84 void ih264e_init_function_ptr(void *pv_codec); 85 86 /** 87 ******************************************************************************* 88 * 89 * @brief Determine the architecture of the encoder executing environment 90 * 91 * @par Description: This routine returns the architecture of the enviro- 92 * ment in which the current encoder is being tested 93 * 94 * @param[in] void 95 * 96 * @returns IV_ARCH_T 97 * architecture 98 * 99 * @remarks none 100 * 101 ******************************************************************************* 102 */ 103 IV_ARCH_T ih264e_default_arch(void); 104 105 /** 106 ******************************************************************************* 107 * 108 * @brief Data Memory Barrier, Data Synchronization Barrier 109 * 110 * 111 * @par Description: These functions do nothing on x86 side. But on arm platforms, 112 * 113 * Data Memory Barrier acts as a memory barrier. It ensures that all explicit 114 * memory accesses that appear in program order before the DMB instruction are 115 * observed before any explicit memory accesses that appear in program order 116 * after the DMB instruction. It does not affect the ordering of any other 117 * instructions executing on the processor 118 * 119 * Data Synchronization Barrier acts as a special kind of memory barrier. No 120 * instruction in program order after this instruction executes until this instruction 121 * completes. This instruction completes when: 122 * 1. All explicit memory accesses before this instruction complete. 123 * 2. All Cache, Branch predictor and TLB maintenance operations before 124 * this instruction complete. 125 * 126 * @param[in] void 127 * 128 * @returns void 129 * 130 * @remarks none 131 * 132 ******************************************************************************* 133 */ 134 135 #endif /* IH264E_PLATFORM_MACROS_H_ */ 136