halide_device_interface_t结构体 参考

`#include <HalideRuntime.h>`

## Public 属性

int(* | device_malloc )(void *user_context, struct halide_buffer_t *buf, const struct halide_device_interface_t *device_interface)
int(* | device_free )(void *user_context, struct halide_buffer_t *buf)
int(* | device_sync )(void *user_context, struct halide_buffer_t *buf)
void(* | device_release )(void *user_context, const struct halide_device_interface_t *device_interface)
int(* | copy_to_host )(void *user_context, struct halide_buffer_t *buf)
int(* | copy_to_device )(void *user_context, struct halide_buffer_t *buf, const struct halide_device_interface_t *device_interface)
int(* | device_and_host_malloc )(void *user_context, struct halide_buffer_t *buf, const struct halide_device_interface_t *device_interface)
int(* | device_and_host_free )(void *user_context, struct halide_buffer_t *buf)
int(* | buffer_copy )(void *user_context, struct halide_buffer_t *src, const struct halide_device_interface_t *dst_device_interface, struct halide_buffer_t *dst)
int(* | device_crop )(void *user_context, const struct halide_buffer_t *src, struct halide_buffer_t *dst)
int(* | device_release_crop )(void *user_context, struct halide_buffer_t *buf)
int(* | wrap_native )(void *user_context, struct halide_buffer_t *buf, uint64_t handle, const struct halide_device_interface_t *device_interface)
int(* | detach_native )(void *user_context, struct halide_buffer_t *buf)
const struct halide_device_interface_impl_t * | impl

## 详细描述

Each GPU API provides a halide_device_interface_t struct pointing to the code that manages device allocations. You can access these functions directly from the struct member function pointers, or by calling the functions declared below. Note that the global functions are not available when using Halide as a JIT compiler. If you are using raw halide_buffer_t in that context you must use the function pointers in the device_interface struct.

The function pointers below are currently the same for every GPU API; only the impl field varies. These top-level functions do the bookkeeping that is common across all GPU APIs, and then dispatch to more API-specific functions via another set of function pointers hidden inside the impl field.

## 类成员变量说明

## buffer_copy

int(* halide_device_interface_t::buffer_copy) (void *user_context, struct halide_buffer_t *src, const struct halide_device_interface_t *dst_device_interface, struct halide_buffer_t *dst)

## copy_to_device

int(* halide_device_interface_t::copy_to_device) (void *user_context, struct halide_buffer_t *buf, const struct halide_device_interface_t *device_interface)

## copy_to_host

int(* halide_device_interface_t::copy_to_host) (void *user_context, struct halide_buffer_t *buf)

## detach_native

int(* halide_device_interface_t::detach_native) (void *user_context, struct halide_buffer_t *buf)

## device_and_host_free

int(* halide_device_interface_t::device_and_host_free) (void *user_context, struct halide_buffer_t *buf)

## device_and_host_malloc

int(* halide_device_interface_t::device_and_host_malloc) (void *user_context, struct halide_buffer_t *buf, const struct halide_device_interface_t *device_interface)

## device_crop

int(* halide_device_interface_t::device_crop) (void *user_context, const struct halide_buffer_t *src, struct halide_buffer_t *dst)

## device_free

int(* halide_device_interface_t::device_free) (void *user_context, struct halide_buffer_t *buf)

## device_malloc

int(* halide_device_interface_t::device_malloc) (void *user_context, struct halide_buffer_t *buf, const struct halide_device_interface_t *device_interface)

## device_release

void(* halide_device_interface_t::device_release) (void *user_context, const struct halide_device_interface_t *device_interface)

## device_release_crop

int(* halide_device_interface_t::device_release_crop) (void *user_context, struct halide_buffer_t *buf)

## device_sync

int(* halide_device_interface_t::device_sync) (void *user_context, struct halide_buffer_t *buf)

## impl

const struct halide_device_interface_impl_t* halide_device_interface_t::impl

## wrap_native

int(* halide_device_interface_t::wrap_native) (void *user_context, struct halide_buffer_t *buf, uint64_t handle, const struct halide_device_interface_t *device_interface)

该结构体的文档由以下文件生成:

- include/HalideRuntime.h