llvmpipe: initial fence implementation

1 files changed, 60 insertions, 0 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_fence.h b/src/gallium/drivers/llvmpipe/lp_fence.h
new file mode 100644
index 00000000000..d45318f9e47
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_fence.h
@@ -0,0 +1,60 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+
+#ifndef LP_FENCE_H
+#define LP_FENCE_H
+
+
+#include "pipe/p_refcnt.h"
+#include "pipe/p_thread.h"
+
+
+struct pipe_screen;
+
+
+struct lp_fence
+{
+   struct pipe_reference reference;
+
+   pipe_mutex mutex;
+   pipe_condvar signalled;
+
+   unsigned rank;
+   unsigned count;
+};
+
+
+struct lp_fence *
+lp_fence_create(unsigned rank);
+
+
+void
+llvmpipe_init_screen_fence_funcs(struct pipe_screen *screen);
+
+
+#endif /* LP_FENCE_H */