1/**************************************************************************
2 *
3 * Copyright 2011 The Chromium OS authors.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL GOOGLE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28/* Fake occlusion queries which return 0, it's better than crashing */
29
30#include "pipe/p_compiler.h"
31
32#include "util/u_memory.h"
33
34#include "i915_context.h"
35#include "i915_query.h"
36
37struct i915_query {
38   unsigned query;
39};
40
41static struct pipe_query *
42i915_create_query(struct pipe_context *ctx, unsigned query_type, unsigned index)
43{
44   struct i915_query *query = CALLOC_STRUCT(i915_query);
45
46   return (struct pipe_query *)query;
47}
48
49static void
50i915_destroy_query(struct pipe_context *ctx, struct pipe_query *query)
51{
52   FREE(query);
53}
54
55static bool
56i915_begin_query(struct pipe_context *ctx, struct pipe_query *query)
57{
58   return true;
59}
60
61static bool
62i915_end_query(struct pipe_context *ctx, struct pipe_query *query)
63{
64   return true;
65}
66
67static bool
68i915_get_query_result(struct pipe_context *ctx, struct pipe_query *query,
69                      bool wait, union pipe_query_result *vresult)
70{
71   uint64_t *result = (uint64_t *)vresult;
72
73   /* 2* viewport Max */
74   *result = 512 * 1024 * 1024;
75   return true;
76}
77
78static void
79i915_set_active_query_state(struct pipe_context *pipe, bool enable)
80{
81}
82
83void
84i915_init_query_functions(struct i915_context *i915)
85{
86   i915->base.create_query = i915_create_query;
87   i915->base.destroy_query = i915_destroy_query;
88   i915->base.begin_query = i915_begin_query;
89   i915->base.end_query = i915_end_query;
90   i915->base.get_query_result = i915_get_query_result;
91   i915->base.set_active_query_state = i915_set_active_query_state;
92}
93