pipebuffer: Ondemand buffer manager.

A variation of malloc buffers which get transferred to real graphics memory
when there is an attempt to validate them.

1 files changed, 14 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h b/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h
index 8fe2704708f..0a8264a9243 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h
+++ b/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h
@@ -183,6 +183,20 @@ pb_alt_manager_create(struct pb_manager *provider1,
 
 
 /** 
+ * Ondemand buffer manager.
+ * 
+ * Buffers are created in malloc'ed memory (fast and cached), and the constents
+ * is transfered to a buffer from the provider (typically in slow uncached 
+ * memory) when there is an attempt to validate the buffer.
+ * 
+ * Ideal for situations where one does not know before hand whether a given
+ * buffer will effectively be used by the hardware or not. 
+ */
+struct pb_manager *
+pb_ondemand_manager_create(struct pb_manager *provider); 
+
+
+/** 
  * Debug buffer manager to detect buffer under- and overflows.
  *
  * Band size should be a multiple of the largest alignment