vc4: Add support for user clip plane and gl_ClipVertex.

Fixes about 15 piglit tests about interpolation and clipping.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/gallium/drivers/vc4/vc4_qir.h b/src/gallium/drivers/vc4/vc4_qir.h
index 0e4b78c02b6..b95dbc33d51 100644
--- a/src/gallium/drivers/vc4/vc4_qir.h
+++ b/src/gallium/drivers/vc4/vc4_qir.h
@@ -183,6 +183,8 @@ enum quniform_contents {
         QUNIFORM_VIEWPORT_Z_OFFSET,
         QUNIFORM_VIEWPORT_Z_SCALE,
 
+        QUNIFORM_USER_CLIP_PLANE,
+
         /**
          * A reference to a texture config parameter 0 uniform.
          *
@@ -272,6 +274,7 @@ struct vc4_compile {
         uint32_t num_outputs;
         uint32_t num_texture_samples;
         uint32_t output_position_index;
+        uint32_t output_clipvertex_index;
         uint32_t output_color_index;
         uint32_t output_point_size_index;