i915_query.c revision 26171bd67e47cf25857cbce767ad048c8d99d1b0 
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{
39   unsigned query;
40};
41
42static struct pipe_query *i915_create_query(struct pipe_context *ctx,
43                                            unsigned query_type,
44                                            unsigned index)
45{
46   struct i915_query *query = CALLOC_STRUCT( i915_query );
47
48   return (struct pipe_query *)query;
49}
50
51static void i915_destroy_query(struct pipe_context *ctx,
52                               struct pipe_query *query)
53{
54   FREE(query);
55}
56
57static boolean i915_begin_query(struct pipe_context *ctx,
58                             struct pipe_query *query)
59{
60   return true;
61}
62
63static void i915_end_query(struct pipe_context *ctx, struct pipe_query *query)
64{
65}
66
67static boolean i915_get_query_result(struct pipe_context *ctx,
68                                     struct pipe_query *query,
69                                     boolean wait,
70                                     union pipe_query_result *vresult)
71{
72   uint64_t *result = (uint64_t*)vresult;
73
74   /* 2* viewport Max */
75   *result = 512*1024*1024;
76   return TRUE;
77}
78
79static void
80i915_set_active_query_state(struct pipe_context *pipe, boolean enable)
81{
82}
83
84void
85i915_init_query_functions(struct i915_context *i915)
86{
87   i915->base.create_query = i915_create_query;
88   i915->base.destroy_query = i915_destroy_query;
89   i915->base.begin_query = i915_begin_query;
90   i915->base.end_query = i915_end_query;
91   i915->base.get_query_result = i915_get_query_result;
92   i915->base.set_active_query_state = i915_set_active_query_state;
93}
94
95