gallium: Make sure we flush before some texture / buffer operations.

Also implement context member functions to optimize away those
flushes whenever possible.

Signed-off-by: Thomas Hellstrom <thellstrom-at-vmware-dot-com>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 1d2aa10949..82e23c413c 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -312,6 +312,13 @@ enum pipe_transfer_usage {
 #define PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS 26
 
 
+/**
+ * Referenced query flags.
+ */
+
+#define PIPE_UNREFERENCED         0
+#define PIPE_REFERENCED_FOR_READ  (1 << 0)
+#define PIPE_REFERENCED_FOR_WRITE (1 << 1)
 
 #ifdef __cplusplus
 }