pb_vtbl Struct Reference

Virtual function table for the buffer storage operations. More...

Data Fields
void(*	destroy )(struct pb_buffer *buf)
void *(*	map )(struct pb_buffer *buf, unsigned flags)
	Map the entire data store of a buffer object into the client's address.
void(*	unmap )(struct pb_buffer *buf)
void(*	get_base_buffer )(struct pb_buffer *buf, struct pb_buffer **base_buf, unsigned *offset)
	Get the base buffer and the offset.

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Detailed Description

Virtual function table for the buffer storage operations.

Note that creation is not done through this table.

Definition at line 94 of file pb_buffer.h.

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Field Documentation

void(* pb_vtbl::destroy)(struct pb_buffer *buf)

void*(* pb_vtbl::map)(struct pb_buffer *buf, unsigned flags)

Map the entire data store of a buffer object into the client's address.

flags is bitmask of PIPE_BUFFER_FLAG_READ/WRITE.

void(* pb_vtbl::unmap)(struct pb_buffer *buf)

void(* pb_vtbl::get_base_buffer)(struct pb_buffer *buf, struct pb_buffer **base_buf, unsigned *offset)

Get the base buffer and the offset.

A buffer can be subdivided in smaller buffers. This method should return the underlaying buffer, and the relative offset.

Buffers without an underlaying base buffer should return themselves, with a zero offset.

Note that this will increase the reference count of the base buffer.

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The documentation for this struct was generated from the following file:

• gallium/auxiliary/pipebuffer/pb_buffer.h

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