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 /** 17 * @addtogroup NativeWindow 18 * @{ 19 * 20 * @brief Provides the BufferHandle struct for native window. 21 * 22 * @syscap SystemCapability.Graphic.Graphic2D.NativeWindow 23 * @since 8 24 * @version 1.0 25 */ 26 27 /** 28 * @file buffer_handle.h 29 * 30 * @brief Defines the BufferHandle struct for native window. 31 * 32 * @kit ArkGraphics2D 33 * @library libnative_window.so 34 * @syscap SystemCapability.Graphic.Graphic2D.NativeWindow 35 * @since 8 36 * @version 1.0 37 */ 38 39 #ifndef INCLUDE_BUFFER_HANDLE_H 40 #define INCLUDE_BUFFER_HANDLE_H 41 42 #include <stdint.h> 43 44 #ifdef __cplusplus 45 extern "C" { 46 #endif 47 48 /** 49 * @brief Buffer handle used to transfer and obtain information about the buffer. 50 * @since 8 51 */ 52 typedef struct { 53 int32_t fd; /**< buffer fd, -1 if not supported */ 54 int32_t width; /**< the width of memory */ 55 int32_t stride; /**< the stride of memory */ 56 int32_t height; /**< the height of memory */ 57 int32_t size; /* < size of memory */ 58 int32_t format; /**< the format of memory */ 59 uint64_t usage; /**< the usage of memory */ 60 void *virAddr; /**< Virtual address of memory */ 61 int32_t key; /**< Shared memory key */ 62 uint64_t phyAddr; /**< Physical address */ 63 uint32_t reserveFds; /**< the number of reserved fd value */ 64 uint32_t reserveInts; /**< the number of reserved integer value */ 65 int32_t reserve[0]; /**< the data */ 66 } BufferHandle; 67 68 #ifdef __cplusplus 69 } 70 #endif 71 72 /** @} */ 73 #endif // INCLUDE_BUFFER_HANDLE_H 74