如果扩展字符串cl_arm_import_memory_host被公开

If the extension string cl_arm_import_memory_host is exposed

这意味着您需要使用是否为这些字符串之一.

This means you need to check the CL_DEVICE_EXTENSIONS property of your OpenCL device using the clGetDeviceInfo() function. Split the returned string into extension names (they are separated by spaces) then check if "cl_arm_import_memory_host" is one of those strings.

请注意，所涉及的扩展名包含多个不同的子功能:

Note that the extension in question consists of multiple different sub-features:

cl_arm_import_memory
cl_arm_import_memory_host
cl_arm_import_memory_dma_buf
cl_arm_import_memory_protected

cl_arm_import_memory
cl_arm_import_memory_host
cl_arm_import_memory_dma_buf
cl_arm_import_memory_protected

cl_arm_import_memory 还报告了字符串.

cl_arm_import_memory will be reported if at least one of the other extension strings is also reported.

因此，如果您的实现支持导入主机内存，则它将同时列出 cl_arm_import_memory 和 cl_arm_import_memory_host.

So if your implementation supports importing host memory it will list both cl_arm_import_memory and cl_arm_import_memory_host.

如果支持正确的功能，则可能需要获取指向扩展名 通过调用 clGetExtensionFunctionAddressForPlatform .

If the correct feature is supported, you will probably need to get a pointer to the extension's clImportMemoryARM() function by calling clGetExtensionFunctionAddressForPlatform.

然后，使用已记录的扩展功能.

Then, use the extension's features as documented.