1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef INCLUDE_BUFFER_HANDLE_H 17 #define INCLUDE_BUFFER_HANDLE_H 18 19 #include <stdint.h> 20 21 #ifdef __cplusplus 22 extern "C" { 23 #endif 24 25 /** 26 * @brief Buffer handle used to transfer and obtain information about the buffer. The handle includes the buffer's 27 * file descriptor, size, format, usage, virtual address, shared memory key, physical address and reserved data. 28 * @since 8 29 */ 30 typedef struct { 31 int32_t fd; /**< buffer fd, -1 if not supported */ 32 int32_t width; /**< the width of memory */ 33 int32_t stride; /**< the stride of memory */ 34 int32_t height; /**< the height of memory */ 35 int32_t size; /* < size of memory */ 36 int32_t format; /**< the format of memory */ 37 uint64_t usage; /**< the usage of memory */ 38 void *virAddr; /**< Virtual address of memory */ 39 uint64_t phyAddr; /**< Physical address */ 40 uint32_t reserveFds; /**< the number of reserved fd value */ 41 uint32_t reserveInts; /**< the number of reserved integer value */ 42 int32_t reserve[0]; /**< the data */ 43 } BufferHandle; 44 45 #ifdef __cplusplus 46 } 47 #endif 48 49 #endif // INCLUDE_BUFFER_HANDLE_H 50