DRI2: Drop sarea, implement swap buffers in the X server.

[mesa.git] / src / mesa / drivers / dri / i965 / brw_vtbl.c

diff --git a/src/mesa/drivers/dri/i965/brw_vtbl.c b/src/mesa/drivers/dri/i965/brw_vtbl.c
index 31e96a250ac41ccfff7b848b2457f446009699c1..ece01a8c9a52f90bb4ace1da3b03701691cbcff0 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_vtbl.c
+++ b/src/mesa/drivers/dri/i965/brw_vtbl.c
@@ -75,15 +75,27 @@ static void brw_set_draw_region( struct intel_context *intel,
                                GLuint num_regions)
 {
    struct brw_context *brw = brw_context(&intel->ctx);
+   struct intel_region *old_depth_region, *old_draw_regions[MAX_DRAW_BUFFERS];
    int i;
+
    if (brw->state.depth_region != depth_region)
       brw->state.dirty.brw |= BRW_NEW_DEPTH_BUFFER;
-   for (i = 0; i < brw->state.nr_draw_regions; i++)
-       intel_region_release(&brw->state.draw_regions[i]);
-   intel_region_release(&brw->state.depth_region);
+
+   for (i = 0; i < brw->state.nr_draw_regions; i++) {
+          old_draw_regions[i] = brw->state.draw_regions[i];
+          brw->state.draw_regions[i] = NULL;
+   }
+   old_depth_region = brw->state.depth_region;
+   brw->state.depth_region = NULL;
+
    for (i = 0; i < num_regions; i++)
        intel_region_reference(&brw->state.draw_regions[i], draw_regions[i]);
    intel_region_reference(&brw->state.depth_region, depth_region);
+
+   for (i = 0; i < brw->state.nr_draw_regions; i++)
+       intel_region_release(&old_draw_regions[i]);
+   intel_region_release(&old_depth_region);
+
    brw->state.nr_draw_regions = num_regions;
 }