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authorMarek Olšák <[email protected]>2010-06-22 05:01:58 +0200
committerMarek Olšák <[email protected]>2010-06-22 06:50:22 +0200
commitbd52246248b745fbf95e97ae188779474e212ff6 (patch)
treed08acf458813a72ca4d87e88dd68f8d9bf5ee40a /src
parent64e32ffb6e7d324dcb46a18975db0c58719c51e7 (diff)
r300g: do not emit ZTOP every draw call
Diffstat (limited to 'src')
-rw-r--r--src/gallium/drivers/r300/r300_hyperz.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/gallium/drivers/r300/r300_hyperz.c b/src/gallium/drivers/r300/r300_hyperz.c
index 6358d98b838..e5c76589528 100644
--- a/src/gallium/drivers/r300/r300_hyperz.c
+++ b/src/gallium/drivers/r300/r300_hyperz.c
@@ -70,6 +70,7 @@ static void r300_update_ztop(struct r300_context* r300)
{
struct r300_ztop_state* ztop_state =
(struct r300_ztop_state*)r300->ztop_state.state;
+ uint32_t old_ztop = ztop_state->z_buffer_top;
/* This is important enough that I felt it warranted a comment.
*
@@ -111,7 +112,8 @@ static void r300_update_ztop(struct r300_context* r300)
ztop_state->z_buffer_top = R300_ZTOP_ENABLE;
}
- r300->ztop_state.dirty = TRUE;
+ if (ztop_state->z_buffer_top != old_ztop)
+ r300->ztop_state.dirty = TRUE;
}
void r300_update_hyperz_state(struct r300_context* r300)