struct pipe_stencil_ref;
struct pipe_stream_output_target;
struct pipe_surface;
+struct pipe_transfer;
struct pipe_vertex_buffer;
struct pipe_vertex_element;
struct pipe_video_buffer;
struct pipe_surface *);
/**
- * Get a transfer object for transferring data to/from a texture.
+ * Map a resource.
*
* Transfers are (by default) context-private and allow uploads to be
- * interleaved with
+ * interleaved with rendering.
+ *
+ * out_transfer will contain the transfer object that must be passed
+ * to all the other transfer functions. It also contains useful
+ * information (like texture strides).
*/
- struct pipe_transfer *(*get_transfer)(struct pipe_context *,
- struct pipe_resource *resource,
- unsigned level,
- unsigned usage, /* a combination of PIPE_TRANSFER_x */
- const struct pipe_box *);
-
- void (*transfer_destroy)(struct pipe_context *,
- struct pipe_transfer *);
-
- void *(*transfer_map)( struct pipe_context *,
- struct pipe_transfer *transfer );
+ void *(*transfer_map)(struct pipe_context *,
+ struct pipe_resource *resource,
+ unsigned level,
+ unsigned usage, /* a combination of PIPE_TRANSFER_x */
+ const struct pipe_box *,
+ struct pipe_transfer **out_transfer);
/* If transfer was created with WRITE|FLUSH_EXPLICIT, only the
* regions specified with this call are guaranteed to be written to
struct pipe_transfer *transfer,
const struct pipe_box *);
- void (*transfer_unmap)( struct pipe_context *,
- struct pipe_transfer *transfer );
-
+ void (*transfer_unmap)(struct pipe_context *,
+ struct pipe_transfer *transfer);
/* One-shot transfer operation with data supplied in a user
* pointer. XXX: strides??