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
37 struct i915_query {
38 unsigned query;
39 };
40
41 static struct pipe_query *
i915_create_query(struct pipe_context * ctx,unsigned query_type,unsigned index)42 i915_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
49 static void
i915_destroy_query(struct pipe_context * ctx,struct pipe_query * query)50 i915_destroy_query(struct pipe_context *ctx, struct pipe_query *query)
51 {
52 FREE(query);
53 }
54
55 static bool
i915_begin_query(struct pipe_context * ctx,struct pipe_query * query)56 i915_begin_query(struct pipe_context *ctx, struct pipe_query *query)
57 {
58 return true;
59 }
60
61 static bool
i915_end_query(struct pipe_context * ctx,struct pipe_query * query)62 i915_end_query(struct pipe_context *ctx, struct pipe_query *query)
63 {
64 return true;
65 }
66
67 static bool
i915_get_query_result(struct pipe_context * ctx,struct pipe_query * query,bool wait,union pipe_query_result * vresult)68 i915_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
78 static void
i915_set_active_query_state(struct pipe_context * pipe,bool enable)79 i915_set_active_query_state(struct pipe_context *pipe, bool enable)
80 {
81 }
82
83 void
i915_init_query_functions(struct i915_context * i915)84 i915_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