1 files changed, 110 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_transfer.c b/src/gallium/auxiliary/util/u_transfer.c
new file mode 100644
index 0000000000..bedace3b1d
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_transfer.c
@@ -0,0 +1,110 @@
+#include "pipe/p_context.h"
+#include "util/u_rect.h"
+#include "util/u_inlines.h"
+#include "util/u_transfer.h"
+#include "util/u_memory.h"
+
+/* One-shot transfer operation with data supplied in a user
+ * pointer.  XXX: strides??
+ */
+void u_default_transfer_inline_write( struct pipe_context *pipe,
+				      struct pipe_resource *resource,
+				      struct pipe_subresource sr,
+				      unsigned usage,
+				      const struct pipe_box *box,
+				      const void *data,
+				      unsigned stride,
+				      unsigned slice_stride)
+{
+   struct pipe_transfer *transfer = NULL;
+   uint8_t *map = NULL;
+
+   transfer = pipe->get_transfer(pipe, 
+				 resource,
+				 sr,
+				 usage,
+				 box );
+   if (transfer == NULL)
+      goto out;
+
+   map = pipe_transfer_map(pipe, transfer);
+   if (map == NULL)
+      goto out;
+
+   assert(box->depth == 1);	/* XXX: fix me */
+   
+   util_copy_rect(map,
+		  resource->format,
+		  transfer->stride, /* bytes? */
+		  0, 0,
+		  box->width,
+		  box->height,
+		  data,
+		  box->width,	/* bytes? texels? */
+		  0, 0);
+
+out:
+   if (map)
+      pipe_transfer_unmap(pipe, transfer);
+
+   if (transfer)
+      pipe_transfer_destroy(pipe, transfer);
+}
+
+
+boolean u_default_resource_get_handle(struct pipe_screen *screen,
+				      struct pipe_resource *resource,
+				      struct winsys_handle *handle)
+{
+   return FALSE;
+}
+
+
+
+void u_default_transfer_flush_region( struct pipe_context *pipe,
+				      struct pipe_transfer *transfer,
+				      const struct pipe_box *box)
+{
+   /* This is a no-op implementation, nothing to do.
+    */
+}
+
+unsigned u_default_is_resource_referenced( struct pipe_context *pipe,
+					   struct pipe_resource *resource,
+					unsigned face, unsigned level)
+{
+   return 0;
+}
+
+struct pipe_transfer * u_default_get_transfer(struct pipe_context *context,
+					      struct pipe_resource *resource,
+					      struct pipe_subresource sr,
+					      unsigned usage,
+					      const struct pipe_box *box)
+{
+   struct pipe_transfer *transfer = CALLOC_STRUCT(pipe_transfer);
+   if (transfer == NULL)
+      return NULL;
+
+   transfer->resource = resource;
+   transfer->sr = sr;
+   transfer->usage = usage;
+   transfer->box = *box;
+
+   /* Note strides are zero, this is ok for buffers, but not for
+    * textures 2d & higher at least. 
+    */
+   return transfer;
+}
+
+void u_default_transfer_unmap( struct pipe_context *pipe,
+			      struct pipe_transfer *transfer )
+{
+}
+
+void u_default_transfer_destroy(struct pipe_context *pipe,
+				struct pipe_transfer *transfer)
+{
+   FREE(transfer);
+}
+