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-rw-r--r--src/gallium/drivers/r300/r300_hyperz.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_hyperz.c b/src/gallium/drivers/r300/r300_hyperz.c
index a471b7353b..b2526d6e41 100644
--- a/src/gallium/drivers/r300/r300_hyperz.c
+++ b/src/gallium/drivers/r300/r300_hyperz.c
@@ -357,6 +357,10 @@ void r300_zmask_alloc_block(struct r300_context *r300, struct r300_surface *surf
tex->desc.b.b.target != PIPE_TEXTURE_2D)
return;
+ /* Cannot flush zmask of 16-bit zbuffers. */
+ if (util_format_get_blocksizebits(tex->desc.b.b.format) == 16)
+ return;
+
if (tex->zmask_mem[level])
return;