i915g: add fake occlusion queries.

Those always return 0, but at least we don't crash when exposing GL 2.0.

1 files changed, 85 insertions, 0 deletions

diff --git a/src/gallium/drivers/i915/i915_query.c b/src/gallium/drivers/i915/i915_query.c
new file mode 100644
index 00000000000..77ed946c5c5
--- /dev/null
+++ b/src/gallium/drivers/i915/i915_query.c
@@ -0,0 +1,85 @@
+/**************************************************************************
+ * 
+ * Copyright 2011 The Chromium OS authors.
+ * 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 GOOGLE 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.
+ * 
+ **************************************************************************/
+
+/* Fake occlusion queries which return 0, it's better than crashing */
+
+#include "pipe/p_compiler.h"
+
+#include "util/u_memory.h"
+
+#include "i915_context.h"
+#include "i915_query.h"
+
+struct i915_query
+{
+   unsigned query;
+};
+
+static struct pipe_query *i915_create_query(struct pipe_context *ctx,
+                                            unsigned query_type)
+{
+   struct i915_query *query = CALLOC_STRUCT( i915_query );
+
+   return (struct pipe_query *)query;
+}
+
+static void i915_destroy_query(struct pipe_context *ctx,
+                               struct pipe_query *query)
+{
+   FREE(query);
+}
+
+static void i915_begin_query(struct pipe_context *ctx,
+                             struct pipe_query *query)
+{
+}
+
+static void i915_end_query(struct pipe_context *ctx, struct pipe_query *query)
+{
+}
+
+static boolean i915_get_query_result(struct pipe_context *ctx,
+                                     struct pipe_query *query,
+                                     boolean wait,
+                                     void *vresult)
+{
+   uint64_t *result = (uint64_t*)vresult;
+
+   *result = 0;
+   return TRUE;
+}
+
+void
+i915_init_query_functions(struct i915_context *i915)
+{
+   i915->base.create_query = i915_create_query;
+   i915->base.destroy_query = i915_destroy_query;
+   i915->base.begin_query = i915_begin_query;
+   i915->base.end_query = i915_end_query;
+   i915->base.get_query_result = i915_get_query_result;
+}
+