gallium/util: add util_texrange_covers_whole_level from radeon

Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
Reviewed-by: Bas Nieuwenhuizen <[email protected]>

1 files changed, 12 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/util/u_inlines.h b/src/gallium/auxiliary/util/u_inlines.h
index a38223ca33c..90821b29de2 100644
--- a/src/gallium/auxiliary/util/u_inlines.h
+++ b/src/gallium/auxiliary/util/u_inlines.h
@@ -650,6 +650,18 @@ util_max_layer(const struct pipe_resource *r, unsigned level)
    }
 }
 
+static inline bool
+util_texrange_covers_whole_level(const struct pipe_resource *tex,
+                                 unsigned level, unsigned x, unsigned y,
+                                 unsigned z, unsigned width,
+                                 unsigned height, unsigned depth)
+{
+   return x == 0 && y == 0 && z == 0 &&
+          width == u_minify(tex->width0, level) &&
+          height == u_minify(tex->height0, level) &&
+          depth == util_max_layer(tex, level) + 1;
+}
+
 #ifdef __cplusplus
 }
 #endif