自 2025 年 3 月 27 日起,我们建议您使用 android-latest-release
而非 aosp-main
构建 AOSP 并为其做出贡献。如需了解详情,请参阅 AOSP 的变更。
使用集合让一切井井有条
根据您的偏好保存内容并对其进行分类。
alloc_device_t 结构体参考文档
#include <
gralloc.h
>
每个设备数据结构都必须以
hw_device_t
开头,后跟模块专用公共方法和属性。
定义位于文件
gralloc.h
的第
326
行。
int(* alloc)(struct
alloc_device_t
*dev, int w, int h, int format, int usage, buffer_handle_t *handle, int *stride)
|
此结构体的文档是根据以下文件生成的:
-
hardware/libhardware/include/hardware/
gralloc.h
本页面上的内容和代码示例受内容许可部分所述许可的限制。Java 和 OpenJDK 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC):2025-07-27。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2025-07-27。"],[],[],null,["# Android Hardware Abstraction Layer: alloc_device_t Struct Reference\n\nalloc_device_t Struct Reference\n===============================\n\n[Data Fields](#pub-attribs) \nalloc_device_t Struct Reference \n\n`\n#include \u003c\n`[gralloc.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/gralloc.h)`\n\u003e\n`\n\n|----------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| Data Fields ----------- ||\n| struct [hw_device_t](/reference/hal/structhw__device__t) | [common](/reference/hal/structalloc__device__t#a86a0ca82dd3f02023e259b8b5e155dbe) |\n| ||\n| int(\\* | [alloc](/reference/hal/structalloc__device__t#abb0bafeb84b6c8f45f3fd86b10313873) )(struct [alloc_device_t](/reference/hal/structalloc__device__t) \\*dev, int w, int h, int format, int usage, buffer_handle_t \\*handle, int \\*stride) |\n| ||\n| int(\\* | [free](/reference/hal/structalloc__device__t#a5af389af2dc84e860a870494a0871904) )(struct [alloc_device_t](/reference/hal/structalloc__device__t) \\*dev, buffer_handle_t handle) |\n| ||\n| void(\\* | [dump](/reference/hal/structalloc__device__t#a3ac7bd39159e8d3e011d4c703b9bce81) )(struct [alloc_device_t](/reference/hal/structalloc__device__t) \\*dev, char \\*buff, int buff_len) |\n| ||\n| void \\* | [reserved_proc](/reference/hal/structalloc__device__t#a0212a30e1eeb7092d7c90424e58f34f0) \\[7\\] |\n| ||\n\n\nDetailed Description\n--------------------\n\n\nEvery device data structure must begin with\n[hw_device_t](/reference/hal/structhw__device__t)\nfollowed by module specific public methods and attributes.\n\n\nDefinition at line\n[326](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/gralloc.h)\nof file\n[gralloc.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/gralloc.h)\n.\n\nField Documentation\n-------------------\n\n\n|------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| int(\\* alloc)(struct [alloc_device_t](/reference/hal/structalloc__device__t) \\*dev, int w, int h, int format, int usage, buffer_handle_t \\*handle, int \\*stride) |\n\n\nDefinition at line\n[343](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/gralloc.h)\nof file\n[gralloc.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/gralloc.h)\n.\n\n|-----------------------------------------------------------------|\n| struct [hw_device_t](/reference/hal/structhw__device__t) common |\n\n\nDefinition at line\n[327](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/gralloc.h)\nof file\n[gralloc.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/gralloc.h)\n.\n\n|----------------------------------------------------------------------------------------------------------------|\n| void(\\* dump)(struct [alloc_device_t](/reference/hal/structalloc__device__t) \\*dev, char \\*buff, int buff_len) |\n\n\nDefinition at line\n[364](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/gralloc.h)\nof file\n[gralloc.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/gralloc.h)\n.\n\n|------------------------------------------------------------------------------------------------------------|\n| int(\\* free)(struct [alloc_device_t](/reference/hal/structalloc__device__t) \\*dev, buffer_handle_t handle) |\n\n\nDefinition at line\n[357](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/gralloc.h)\nof file\n[gralloc.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/gralloc.h)\n.\n\n|---------------------------|\n| void\\* reserved_proc\\[7\\] |\n\n\nDefinition at line\n[366](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/gralloc.h)\nof file\n[gralloc.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/gralloc.h)\n.\n\n*** ** * ** ***\n\nThe documentation for this struct was generated from the following file:\n\n- hardware/libhardware/include/hardware/ [gralloc.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/gralloc.h)"]]