1 files changed, 146 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_query.c b/src/gallium/drivers/llvmpipe/lp_query.c
new file mode 100644
index 0000000000..c902c04684
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_query.c
@@ -0,0 +1,146 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2010 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 THE AUTHORS 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.
+ * 
+ **************************************************************************/
+
+/* Authors:
+ *    Keith Whitwell, Qicheng Christopher Li, Brian Paul
+ */
+
+#include "draw/draw_context.h"
+#include "pipe/p_defines.h"
+#include "util/u_memory.h"
+#include "lp_context.h"
+#include "lp_flush.h"
+#include "lp_query.h"
+#include "lp_rast.h"
+#include "lp_rast_priv.h"
+#include "lp_state.h"
+
+
+static struct llvmpipe_query *llvmpipe_query( struct pipe_query *p )
+{
+   return (struct llvmpipe_query *)p;
+}
+
+static struct pipe_query *
+llvmpipe_create_query(struct pipe_context *pipe, 
+		      unsigned type)
+{
+   struct llvmpipe_query *pq;
+
+   assert(type == PIPE_QUERY_OCCLUSION_COUNTER);
+
+   pq = CALLOC_STRUCT( llvmpipe_query );
+   if (pq) {
+      pipe_mutex_init(pq->mutex);
+   }
+
+   return (struct pipe_query *) pq;
+}
+
+
+static void
+llvmpipe_destroy_query(struct pipe_context *pipe, struct pipe_query *q)
+{
+   struct llvmpipe_query *pq = llvmpipe_query(q);
+   pipe_mutex_destroy(pq->mutex);
+   FREE(pq);
+}
+
+
+static boolean
+llvmpipe_get_query_result(struct pipe_context *pipe, 
+			  struct pipe_query *q,
+			  boolean wait,
+			  void *vresult)
+{
+   struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
+   struct llvmpipe_query *pq = llvmpipe_query(q);
+   uint64_t *result = (uint64_t *)vresult;
+
+   if (!pq->done) {
+      lp_setup_flush(llvmpipe->setup, 0);
+   }
+
+   if (pq->done) {
+      *result = pq->result;
+   }
+
+   return pq->done;
+}
+
+
+static void
+llvmpipe_begin_query(struct pipe_context *pipe, struct pipe_query *q)
+{
+   struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
+   struct llvmpipe_query *pq = llvmpipe_query(q);
+
+   /* Check if the query is already in the scene.  If so, we need to
+    * flush the scene now.  Real apps shouldn't re-use a query in a
+    * frame of rendering.
+    */
+   if (pq->binned) {
+      struct pipe_fence_handle *fence;
+      llvmpipe_flush(pipe, 0, &fence);
+      if (fence) {
+         pipe->screen->fence_finish(pipe->screen, fence, 0);
+         pipe->screen->fence_reference(pipe->screen, &fence, NULL);
+      }
+   }
+
+   lp_setup_begin_query(llvmpipe->setup, pq);
+
+   llvmpipe->active_query_count++;
+   llvmpipe->dirty |= LP_NEW_QUERY;
+}
+
+
+static void
+llvmpipe_end_query(struct pipe_context *pipe, struct pipe_query *q)
+{
+   struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
+   struct llvmpipe_query *pq = llvmpipe_query(q);
+
+   lp_setup_end_query(llvmpipe->setup, pq);
+
+   assert(llvmpipe->active_query_count);
+   llvmpipe->active_query_count--;
+   llvmpipe->dirty |= LP_NEW_QUERY;
+}
+
+
+void llvmpipe_init_query_funcs(struct llvmpipe_context *llvmpipe )
+{
+   llvmpipe->pipe.create_query = llvmpipe_create_query;
+   llvmpipe->pipe.destroy_query = llvmpipe_destroy_query;
+   llvmpipe->pipe.begin_query = llvmpipe_begin_query;
+   llvmpipe->pipe.end_query = llvmpipe_end_query;
+   llvmpipe->pipe.get_query_result = llvmpipe_get_query_result;
+}
+
+