mesa: add/update comments in _mesa_copy_buffer_subdata()

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

diff --git a/src/mesa/drivers/dri/i965/brw_queryobj.c b/src/mesa/drivers/dri/i965/brw_queryobj.c
index 3ad522da13800ea64b539a9d13b8a004a17428ca..72b83f457086792c520c97e2121cb31710d3133e 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_queryobj.c
+++ b/src/mesa/drivers/dri/i965/brw_queryobj.c
@@ -75,6 +75,14 @@ brw_queryobj_get_results(struct gl_context *ctx,
       }
       break;
 
+   case GL_PRIMITIVES_GENERATED:
+   case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
+      /* We don't actually query the hardware for this value, so query->bo
+       * should always be NULL and execution should never reach here.
+       */
+      assert(!"Unreachable");
+      break;
+
    default:
       assert(!"Unrecognized query target in brw_queryobj_get_results()");
       break;
@@ -158,6 +166,20 @@ brw_begin_query(struct gl_context *ctx, struct gl_query_object *q)
       intel->stats_wm++;
       break;
 
+   case GL_PRIMITIVES_GENERATED:
+      /* We don't actually query the hardware for this value; we keep track of
+       * it a software counter.  So just reset the counter.
+       */
+      brw->sol.primitives_generated = 0;
+      break;
+
+   case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
+      /* We don't actually query the hardware for this value; we keep track of
+       * it a software counter.  So just reset the counter.
+       */
+      brw->sol.primitives_written = 0;
+      break;
+
    default:
       assert(!"Unrecognized query target in brw_begin_query()");
       break;
@@ -221,6 +243,32 @@ brw_end_query(struct gl_context *ctx, struct gl_query_object *q)
       intel->stats_wm--;
       break;
 
+   case GL_PRIMITIVES_GENERATED:
+      /* We don't actually query the hardware for this value; we keep track of
+       * it in a software counter.  So just read the counter and store it in
+       * the query object.
+       */
+      query->Base.Result = brw->sol.primitives_generated;
+
+      /* And set brw->query.obj to NULL so that this query won't try to wait
+       * for any rendering to complete.
+       */
+      query->bo = NULL;
+      break;
+
+   case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
+      /* We don't actually query the hardware for this value; we keep track of
+       * it in a software counter.  So just read the counter and store it in
+       * the query object.
+       */
+      query->Base.Result = brw->sol.primitives_written;
+
+      /* And set brw->query.obj to NULL so that this query won't try to wait
+       * for any rendering to complete.
+       */
+      query->bo = NULL;
+      break;
+
    default:
       assert(!"Unrecognized query target in brw_end_query()");
       break;