nvc0: don't enable early-z if alpha test is enabled

Depth values are also written before the shader is executed, so if
early tests are enabled, fragments that failed the alpha test were
modifying the depth buffer, but they shouldn't.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/gallium/drivers/nvc0/nvc0_context.h b/src/gallium/drivers/nvc0/nvc0_context.h
index 67c5a1287b1..aac358e142b 100644
--- a/src/gallium/drivers/nvc0/nvc0_context.h
+++ b/src/gallium/drivers/nvc0/nvc0_context.h
@@ -79,6 +79,7 @@ struct nvc0_context {
       uint32_t instance_base;
       int32_t index_bias;
       boolean prim_restart;
+      boolean early_z;
       uint8_t num_vtxbufs;
       uint8_t num_vtxelts;
       uint8_t num_textures[5];