intel: Add function intel_renderbuffer_set_hiz_region()

It's the analog of intel_renderbuffer_set_region(), but for the hiz region
of course.

CC: Ian Romanick <[email protected]>
CC: Kristian Høgsberg <[email protected]>
Acked-by: Eric Anholt <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Signed-off-by: Chad Versace <[email protected]>

2 files changed, 17 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/intel/intel_fbo.c b/src/mesa/drivers/dri/intel/intel_fbo.c
index 7434e0efff6..83f622d437e 100644
--- a/src/mesa/drivers/dri/intel/intel_fbo.c
+++ b/src/mesa/drivers/dri/intel/intel_fbo.c
@@ -321,6 +321,18 @@ intel_renderbuffer_set_region(struct intel_context *intel,
 }
 
 
+void
+intel_renderbuffer_set_hiz_region(struct intel_context *intel,
+				  struct intel_renderbuffer *rb,
+				  struct intel_region *region)
+{
+   struct intel_region *old = rb->hiz_region;
+   rb->hiz_region = NULL;
+   intel_region_reference(&rb->hiz_region, region);
+   intel_region_release(&old);
+}
+
+
 /**
  * Create a new intel_renderbuffer which corresponds to an on-screen window,
  * not a user-created renderbuffer.
diff --git a/src/mesa/drivers/dri/intel/intel_fbo.h b/src/mesa/drivers/dri/intel/intel_fbo.h
index 212dd9aadc8..e9929b095ff 100644
--- a/src/mesa/drivers/dri/intel/intel_fbo.h
+++ b/src/mesa/drivers/dri/intel/intel_fbo.h
@@ -113,6 +113,11 @@ intel_renderbuffer_set_region(struct intel_context *intel,
 			      struct intel_renderbuffer *irb,
 			      struct intel_region *region);
 
+extern void
+intel_renderbuffer_set_hiz_region(struct intel_context *intel,
+				  struct intel_renderbuffer *rb,
+				  struct intel_region *region);
+
 
 extern struct intel_renderbuffer *
 intel_create_renderbuffer(gl_format format);