st/nine: Add new driconf options to control DISCARD behaviour

See the patch for the new controls added.

Signed-off-by: Axel Davy <[email protected]>

1 files changed, 17 insertions, 0 deletions

diff --git a/src/gallium/targets/d3dadapter9/drm.c b/src/gallium/targets/d3dadapter9/drm.c
index 767a17a55da..e0c2e26c02f 100644
--- a/src/gallium/targets/d3dadapter9/drm.c
+++ b/src/gallium/targets/d3dadapter9/drm.c
@@ -56,6 +56,8 @@ DRI_CONF_BEGIN
         DRI_CONF_NINE_OVERRIDEVENDOR(-1)
         DRI_CONF_NINE_THROTTLE(-2)
         DRI_CONF_NINE_THREADSUBMIT("false")
+        DRI_CONF_NINE_ALLOWDISCARDDELAYEDRELEASE("true")
+        DRI_CONF_NINE_TEARFREEDISCARD("false")
     DRI_CONF_SECTION_END
 DRI_CONF_END;
 
@@ -284,6 +286,21 @@ drm_create_adapter( int fd,
         override_vendorid = driQueryOptioni(&userInitOptions, "override_vendorid");
     }
 
+    if (driCheckOption(&userInitOptions, "discard_delayed_release", DRI_BOOL))
+        ctx->base.discard_delayed_release = driQueryOptionb(&userInitOptions, "discard_delayed_release");
+    else
+        ctx->base.discard_delayed_release = TRUE;
+
+    if (driCheckOption(&userInitOptions, "tearfree_discard", DRI_BOOL))
+        ctx->base.tearfree_discard = driQueryOptionb(&userInitOptions, "tearfree_discard");
+    else
+        ctx->base.tearfree_discard = FALSE;
+
+    if (ctx->base.tearfree_discard && !ctx->base.discard_delayed_release) {
+        ERR("tearfree_discard requires discard_delayed_release\n");
+        ctx->base.tearfree_discard = FALSE;
+    }
+
     driDestroyOptionCache(&userInitOptions);
     driDestroyOptionInfo(&defaultInitOptions);