1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GPU_COMMAND_BUFFER_CLIENT_QUERY_TRACKER_H_
#define GPU_COMMAND_BUFFER_CLIENT_QUERY_TRACKER_H_
#include <GLES2/gl2.h>
#include <stddef.h>
#include <stdint.h>
#include <bitset>
#include <deque>
#include <list>
#include "base/atomicops.h"
#include "base/containers/hash_tables.h"
#include "base/macros.h"
#include "gles2_impl_export.h"
#include "gpu/command_buffer/common/gles2_cmd_format.h"
namespace gpu {
class CommandBufferHelper;
class MappedMemoryManager;
namespace gles2 {
class GLES2Implementation;
// Manages buckets of QuerySync instances in mapped memory.
class GLES2_IMPL_EXPORT QuerySyncManager {
public:
static const size_t kSyncsPerBucket = 256;
struct Bucket {
Bucket(QuerySync* sync_mem, int32_t shm_id, uint32_t shm_offset);
~Bucket();
QuerySync* syncs;
int32_t shm_id;
uint32_t base_shm_offset;
std::bitset<kSyncsPerBucket> in_use_queries;
};
struct QueryInfo {
QueryInfo(Bucket* bucket, int32_t id, uint32_t offset, QuerySync* sync_mem)
: bucket(bucket), shm_id(id), shm_offset(offset), sync(sync_mem) {}
QueryInfo()
: bucket(NULL),
shm_id(0),
shm_offset(0),
sync(NULL) {
}
Bucket* bucket;
int32_t shm_id;
uint32_t shm_offset;
QuerySync* sync;
};
explicit QuerySyncManager(MappedMemoryManager* manager);
~QuerySyncManager();
bool Alloc(QueryInfo* info);
void Free(const QueryInfo& sync);
void Shrink();
private:
MappedMemoryManager* mapped_memory_;
std::deque<Bucket*> buckets_;
DISALLOW_COPY_AND_ASSIGN(QuerySyncManager);
};
// Tracks queries for client side of command buffer.
class GLES2_IMPL_EXPORT QueryTracker {
public:
class GLES2_IMPL_EXPORT Query {
public:
enum State {
kUninitialized, // never used
kActive, // between begin - end
kPending, // not yet complete
kComplete // completed
};
Query(GLuint id, GLenum target, const QuerySyncManager::QueryInfo& info);
GLenum target() const {
return target_;
}
GLuint id() const {
return id_;
}
int32_t shm_id() const { return info_.shm_id; }
uint32_t shm_offset() const { return info_.shm_offset; }
void MarkAsActive() {
state_ = kActive;
++submit_count_;
if (submit_count_ == INT_MAX)
submit_count_ = 1;
}
void MarkAsPending(int32_t token) {
token_ = token;
state_ = kPending;
}
base::subtle::Atomic32 submit_count() const { return submit_count_; }
int32_t token() const { return token_; }
bool NeverUsed() const {
return state_ == kUninitialized;
}
bool Active() const {
return state_ == kActive;
}
bool Pending() const {
return state_ == kPending;
}
bool CheckResultsAvailable(CommandBufferHelper* helper);
uint64_t GetResult() const;
private:
friend class QueryTracker;
friend class QueryTrackerTest;
void Begin(GLES2Implementation* gl);
void End(GLES2Implementation* gl);
void QueryCounter(GLES2Implementation* gl);
GLuint id_;
GLenum target_;
QuerySyncManager::QueryInfo info_;
State state_;
base::subtle::Atomic32 submit_count_;
int32_t token_;
uint32_t flush_count_;
uint64_t client_begin_time_us_; // Only used for latency query target.
uint64_t result_;
};
QueryTracker(MappedMemoryManager* manager);
~QueryTracker();
Query* CreateQuery(GLuint id, GLenum target);
Query* GetQuery(GLuint id);
Query* GetCurrentQuery(GLenum target);
void RemoveQuery(GLuint id);
void Shrink();
void FreeCompletedQueries();
bool BeginQuery(GLuint id, GLenum target, GLES2Implementation* gl);
bool EndQuery(GLenum target, GLES2Implementation* gl);
bool QueryCounter(GLuint id, GLenum target, GLES2Implementation* gl);
bool SetDisjointSync(GLES2Implementation* gl);
bool CheckAndResetDisjoint();
int32_t DisjointCountSyncShmID() const {
return disjoint_count_sync_shm_id_;
}
uint32_t DisjointCountSyncShmOffset() const {
return disjoint_count_sync_shm_offset_;
}
private:
typedef base::hash_map<GLuint, Query*> QueryIdMap;
typedef base::hash_map<GLenum, Query*> QueryTargetMap;
typedef std::list<Query*> QueryList;
QueryIdMap queries_;
QueryTargetMap current_queries_;
QueryList removed_queries_;
QuerySyncManager query_sync_manager_;
// The shared memory used for synchronizing timer disjoint values.
MappedMemoryManager* mapped_memory_;
int32_t disjoint_count_sync_shm_id_;
uint32_t disjoint_count_sync_shm_offset_;
DisjointValueSync* disjoint_count_sync_;
uint32_t local_disjoint_count_;
DISALLOW_COPY_AND_ASSIGN(QueryTracker);
};
} // namespace gles2
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_CLIENT_QUERY_TRACKER_H_
|
