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authorEric Anholt <[email protected]>2010-10-27 11:00:14 -0700
committerEric Anholt <[email protected]>2010-10-28 14:45:11 -0700
commite30a3e7aa09c373c0a02df555d090693718f0fe8 (patch)
tree40bb282eefbdfc28ea353e7d27b8b73d2a8f6eca /src/mesa/drivers/dri/i965/brw_defines.h
parent85a08f8fc761d8501fc315d16df6ce0fba9f091e (diff)
i965: Add user clip planes support to gen6.
Fixes piglit user-clip, and compiz desktop switching when dragging a window and using just 2 desktops. Bug #30446.
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_defines.h')
-rw-r--r--src/mesa/drivers/dri/i965/brw_defines.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_defines.h b/src/mesa/drivers/dri/i965/brw_defines.h
index 6c3db61035a..239586a0366 100644
--- a/src/mesa/drivers/dri/i965/brw_defines.h
+++ b/src/mesa/drivers/dri/i965/brw_defines.h
@@ -930,6 +930,11 @@
#define CMD_3D_CLIP_STATE 0x7812 /* GEN6+ */
/* DW1 */
# define GEN6_CLIP_STATISTICS_ENABLE (1 << 10)
+/**
+ * Just does cheap culling based on the clip distance. Bits must be
+ * disjoint with USER_CLIP_CLIP_DISTANCE bits.
+ */
+# define GEN6_USER_CLIP_CULL_DISTANCES_SHIFT 0
/* DW2 */
# define GEN6_CLIP_ENABLE (1 << 31)
# define GEN6_CLIP_API_OGL (0 << 30)
@@ -937,6 +942,8 @@
# define GEN6_CLIP_XY_TEST (1 << 28)
# define GEN6_CLIP_Z_TEST (1 << 27)
# define GEN6_CLIP_GB_TEST (1 << 26)
+/** 8-bit field of which user clip distances to clip aganist. */
+# define GEN6_USER_CLIP_CLIP_DISTANCES_SHIFT 16
# define GEN6_CLIP_MODE_NORMAL (0 << 13)
# define GEN6_CLIP_MODE_REJECT_ALL (3 << 13)
# define GEN6_CLIP_MODE_ACCEPT_ALL (4 << 13)