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i965: Fix occlusion query on sandybridge
[mesa.git]
/
src
/
mesa
/
drivers
/
dri
/
i965
/
brw_queryobj.c
diff --git
a/src/mesa/drivers/dri/i965/brw_queryobj.c
b/src/mesa/drivers/dri/i965/brw_queryobj.c
index f28f28663ea728cce8ce33c2abfdf482ea1ed20f..656aad630a19024d84ef99a4b5197b986c6ea683 100644
(file)
--- a/
src/mesa/drivers/dri/i965/brw_queryobj.c
+++ b/
src/mesa/drivers/dri/i965/brw_queryobj.c
@@
-232,6
+232,12
@@
brw_prepare_query_begin(struct brw_context *brw)
brw->query.bo = NULL;
brw->query.bo = drm_intel_bo_alloc(intel->bufmgr, "query", 4096, 1);
brw->query.bo = NULL;
brw->query.bo = drm_intel_bo_alloc(intel->bufmgr, "query", 4096, 1);
+
+ /* clear target buffer */
+ drm_intel_bo_map(brw->query.bo, GL_TRUE);
+ memset((char *)brw->query.bo->virtual, 0, 4096);
+ drm_intel_bo_unmap(brw->query.bo);
+
brw->query.index = 0;
}
brw->query.index = 0;
}