intel: Fix SGIS_generate_mipmap after a miptree had been validated.

Previously, the updated images would be ignored because the miptree in the
image matched the miptree in the object, even though Mesa core had just attached
updated contents in ->Data.  Additionally, Mesa core could have tried to
free inside our miptree if it had already been validated.

Fixes bug #17077.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/intel/intel_tex.h b/src/mesa/drivers/dri/intel/intel_tex.h
index 60ab8203e52..fe7a8badf81 100644
--- a/src/mesa/drivers/dri/intel/intel_tex.h
+++ b/src/mesa/drivers/dri/intel/intel_tex.h
@@ -142,6 +142,14 @@ void intelSetTexBuffer(__DRIcontext *pDRICtx,
 
 GLuint intel_finalize_mipmap_tree(struct intel_context *intel, GLuint unit);
 
+void intel_tex_map_level_images(struct intel_context *intel,
+				struct intel_texture_object *intelObj,
+				int level);
+
+void intel_tex_unmap_level_images(struct intel_context *intel,
+				  struct intel_texture_object *intelObj,
+				  int level);
+
 void intel_tex_map_images(struct intel_context *intel,
                           struct intel_texture_object *intelObj);