r600g: do fine-grained depth texture flushing

- maintain a mask of which mipmap levels are dirty (instead of one big flag)
- only flush what was requested at a given point and not the whole resource
  (most often only one level and one layer has to be flushed)

Reviewed-by: Alex Deucher <[email protected]>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/gallium/drivers/r600/r600_resource.h b/src/gallium/drivers/r600/r600_resource.h
index 7327ba6c2d7..a7570c7deec 100644
--- a/src/gallium/drivers/r600/r600_resource.h
+++ b/src/gallium/drivers/r600/r600_resource.h
@@ -59,7 +59,7 @@ struct r600_resource_texture {
 	unsigned			tile_type;
 	bool				is_depth;
 	bool				is_rat;
-	unsigned			dirty_db;
+	unsigned			dirty_db_mask; /* each bit says if that miplevel is dirty */
 	struct r600_resource_texture    *stencil; /* Stencil is in a separate buffer on Evergreen. */
 	struct r600_resource_texture	*flushed_depth_texture;
 	boolean				is_flushing_texture;
@@ -93,7 +93,9 @@ void r600_init_flushed_depth_texture(struct pipe_context *ctx,
 				     struct r600_resource_texture **staging);
 void r600_texture_depth_flush(struct pipe_context *ctx,
 			      struct pipe_resource *texture,
-			      struct r600_resource_texture **staging);
+			      struct r600_resource_texture **staging,
+			      unsigned first_level, unsigned last_level,
+			      unsigned first_layer, unsigned last_layer);
 
 /* r600_texture.c texture transfer functions. */
 struct pipe_transfer* r600_texture_get_transfer(struct pipe_context *ctx,