i965: Fix PBO cache coherency issue after _mesa_meta_pbo_GetTexSubImage().

[mesa.git] / src / mesa / drivers / dri / i965 / brw_multisample_state.h

diff --git a/src/mesa/drivers/dri/i965/brw_multisample_state.h b/src/mesa/drivers/dri/i965/brw_multisample_state.h
index 2e0250004da5f25a629cc26bcad9d8d23bc8cc47..26633e729837a93edc5c4110dbed5354fab5af44 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_multisample_state.h
+++ b/src/mesa/drivers/dri/i965/brw_multisample_state.h
@@ -23,6 +23,17 @@
 
 #include <stdint.h>
 
+/**
+ * 1x MSAA has a single sample at the center: (0.5, 0.5) -> (0x8, 0x8).
+ *
+ * 2x MSAA sample positions are (0.25, 0.25) and (0.75, 0.75):
+ *   4 c
+ * 4 0
+ * c   1
+ */
+static const uint32_t
+brw_multisample_positions_1x_2x = 0x0088cc44;
+
 /**
  * Sample positions:
  *   2 6 a e