Rework gallium and mesa queries a little.

Add a 'CheckQuery()' driver callback to mesa to check query completion.
Make pipe_query an opaque type.
Rework softpipe queries, support overlapping occlusion queries.

1 files changed, 10 insertions, 6 deletions

diff --git a/src/mesa/pipe/softpipe/sp_quad_occlusion.c b/src/mesa/pipe/softpipe/sp_quad_occlusion.c
index d65fdbdab7..54254df1f1 100644
--- a/src/mesa/pipe/softpipe/sp_quad_occlusion.c
+++ b/src/mesa/pipe/softpipe/sp_quad_occlusion.c
@@ -39,18 +39,22 @@
 #include "sp_surface.h"
 #include "sp_quad.h"
 
+static unsigned count_bits( unsigned val )
+{
+   unsigned i;
+
+   for (i = 0; val ; val >>= 1)
+      i += (val & 1);
+
+   return i;
+}
 
 static void
 occlusion_count_quad(struct quad_stage *qs, struct quad_header *quad)
 {
    struct softpipe_context *softpipe = qs->softpipe;
-   struct pipe_query_object *occ
-      = softpipe->queries[PIPE_QUERY_OCCLUSION_COUNTER];
 
-   occ->count += (quad->mask     ) & 1;
-   occ->count += (quad->mask >> 1) & 1;
-   occ->count += (quad->mask >> 2) & 1;
-   occ->count += (quad->mask >> 3) & 1;
+   softpipe->occlusion_count += count_bits(quad->mask);
 
    qs->next->run(qs->next, quad);
 }