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-rw-r--r--src/mesa/drivers/dri/i965/intel_mipmap_tree.c2
-rw-r--r--src/mesa/drivers/dri/i965/intel_mipmap_tree.h12
2 files changed, 14 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index 5fe6e47..d4f6c34 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -534,6 +534,7 @@ intel_miptree_create_layout(struct brw_context *brw,
intel_miptree_release(&mt);
return NULL;
}
+ mt->stencil_mt->r8stencil_needs_update = true;
/* Fix up the Z miptree format for how we're splitting out separate
* stencil. Gen7 expects there to be no stencil bits in its depth buffer.
@@ -997,6 +998,7 @@ intel_miptree_release(struct intel_mipmap_tree **mt)
drm_intel_bo_unreference((*mt)->bo);
intel_miptree_release(&(*mt)->stencil_mt);
+ intel_miptree_release(&(*mt)->r8stencil_mt);
if ((*mt)->hiz_buf) {
if ((*mt)->hiz_buf->mt)
intel_miptree_release(&(*mt)->hiz_buf->mt);
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
index a49da8c..4473126 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
@@ -615,6 +615,18 @@ struct intel_mipmap_tree
struct intel_mipmap_tree *stencil_mt;
/**
+ * \brief Stencil texturing miptree for sampling from a stencil texture
+ *
+ * Some hardware doesn't support sampling from the stencil texture as
+ * required by the GL_ARB_stencil_texturing extenion. To workaround this we
+ * blit the texture into a new texture that can be sampled.
+ *
+ * \see intel_update_r8stencil()
+ */
+ struct intel_mipmap_tree *r8stencil_mt;
+ bool r8stencil_needs_update;
+
+ /**
* \brief MCS miptree.
*
* This miptree contains the "multisample control surface", which stores