- void *map;
-
- assert(offset < buf->size);
- assert(offset + size <= buf->size);
- assert(size);
-
- map = pipe_buffer_map_range(screen, buf, offset, size, PIPE_BUFFER_USAGE_CPU_READ);
- assert(map);
- if(map) {
- memcpy(data, (const uint8_t *)map + offset, size);
- pipe_buffer_unmap(screen, buf);
- }
+ struct pipe_transfer *src_transfer;
+ ubyte *map;
+
+ map = (ubyte *) pipe_buffer_map_range(pipe,
+ buf,
+ offset, size,
+ PIPE_TRANSFER_READ,
+ &src_transfer);
+
+ if (map)
+ memcpy(data, map + offset, size);
+
+ pipe_buffer_unmap(pipe, buf, src_transfer);
+}
+
+static INLINE struct pipe_transfer *
+pipe_get_transfer( struct pipe_context *context,
+ struct pipe_resource *resource,
+ unsigned face, unsigned level,
+ unsigned zslice,
+ enum pipe_transfer_usage usage,
+ unsigned x, unsigned y,
+ unsigned w, unsigned h)
+{
+ struct pipe_box box;
+ u_box_2d_zslice( x, y, zslice, w, h, &box );
+ return context->get_transfer( context,
+ resource,
+ u_subresource(face, level),
+ usage,
+ &box );