vl: initial va-api implementation

1 files changed, 94 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/va/htab.c b/src/gallium/state_trackers/va/htab.c
new file mode 100644
index 00000000000..7b7c111a4be
--- /dev/null
+++ b/src/gallium/state_trackers/va/htab.c
@@ -0,0 +1,94 @@
+/**************************************************************************
+ *
+ * Copyright 2010 Younes Manton.
+ * 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 TUNGSTEN GRAPHICS 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.
+ *
+ **************************************************************************/
+
+#include <util/u_handle_table.h>
+#include <os/os_thread.h>
+#include "va_private.h"
+
+#ifdef VL_HANDLES
+static struct handle_table *htab = NULL;
+pipe_static_mutex(htab_lock);
+#endif
+
+boolean vlCreateHTAB(void)
+{
+#ifdef VL_HANDLES
+   boolean ret;
+   /* Make sure handle table handles match VDPAU handles. */
+   assert(sizeof(unsigned) <= sizeof(vlHandle));
+   pipe_mutex_lock(htab_lock);
+   if (!htab)
+      htab = handle_table_create();
+   ret = htab != NULL;
+   pipe_mutex_unlock(htab_lock);
+   return ret;
+#else
+   return TRUE;
+#endif
+}
+
+void vlDestroyHTAB(void)
+{
+#ifdef VL_HANDLES
+   pipe_mutex_lock(htab_lock);
+   if (htab) {
+      handle_table_destroy(htab);
+      htab = NULL;
+   }
+   pipe_mutex_unlock(htab_lock);
+#endif
+}
+
+vlHandle vlAddDataHTAB(void *data)
+{
+   assert(data);
+#ifdef VL_HANDLES
+   vlHandle handle = 0;
+   pipe_mutex_lock(htab_lock);
+   if (htab)
+      handle = handle_table_add(htab, data);
+   pipe_mutex_unlock(htab_lock);
+   return handle;
+#else
+   return (vlHandle)data;
+#endif
+}
+
+void* vlGetDataHTAB(vlHandle handle)
+{
+   assert(handle);
+#ifdef VL_HANDLES
+   void *data = NULL;
+   pipe_mutex_lock(htab_lock);
+   if (htab)
+      data = handle_table_get(htab, handle);
+   pipe_mutex_unlock(htab_lock);
+   return data;
+#else
+   return (void*)handle;
+#endif
+}