v2: remove underscore between NO and PERSPECTIVE in 
PIPE_PACKING_CONSTRAINT_SMOOTH_NO_PERSPECTIVE_MIXED
---
 src/gallium/include/pipe/p_defines.h |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/src/gallium/include/pipe/p_defines.h 
b/src/gallium/include/pipe/p_defines.h
index 4155178..4b55e5c 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -510,6 +510,13 @@ enum pipe_capf
    PIPE_CAPF_GUARD_BAND_BOTTOM = 24
 };
 
+/**
+ *  Return values for varyings_packing_constraints cap
+ */
+#define PIPE_PACKING_CONSTRAINT_NONE  0
+#define PIPE_PACKING_CONSTRAINT_SMOOTH_NOPERSPECTIVE_MIXED 1
+#define PIPE_PACKING_CONSTRAINT_NO_MIXED_INTERPOLATION 2
+#define PIPE_PACKING_CONSTRAINT_AVOID_PACKING 3
 /* Shader caps not specific to any single stage */
 enum pipe_shader_cap
 {
@@ -533,7 +540,8 @@ enum pipe_shader_cap
    PIPE_SHADER_CAP_SUBROUTINES = 16, /* BGNSUB, ENDSUB, CAL, RET */
    PIPE_SHADER_CAP_INTEGERS = 17,
    PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS = 18,
-   PIPE_SHADER_CAP_OUTPUT_READ = 19
+   PIPE_SHADER_CAP_OUTPUT_READ = 19,
+   PIPE_SHADER_CAP_VARYINGS_PACKING_CONSTRAINTS = 20
 };
 
 
-- 
1.7.7

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