diff options
| -rw-r--r-- | src/gallium/drivers/r300/r300_hyperz.c | 4 |
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) |