1 /*
2  * Copyright (C) 2015 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include <DeviceInfo.h>
18 
19 #include "Extensions.h"
20 
21 #include <thread>
22 #include <mutex>
23 
24 #include <log/log.h>
25 
26 #include <GLES2/gl2.h>
27 
28 namespace android {
29 namespace uirenderer {
30 
31 static DeviceInfo* sDeviceInfo = nullptr;
32 static std::once_flag sInitializedFlag;
33 
get()34 const DeviceInfo* DeviceInfo::get() {
35     LOG_ALWAYS_FATAL_IF(!sDeviceInfo, "DeviceInfo not yet initialized.");
36     return sDeviceInfo;
37 }
38 
initialize()39 void DeviceInfo::initialize() {
40     std::call_once(sInitializedFlag, []() {
41         sDeviceInfo = new DeviceInfo();
42         sDeviceInfo->load();
43     });
44 }
45 
initialize(int maxTextureSize)46 void DeviceInfo::initialize(int maxTextureSize) {
47     std::call_once(sInitializedFlag, [maxTextureSize]() {
48         sDeviceInfo = new DeviceInfo();
49         sDeviceInfo->mMaxTextureSize = maxTextureSize;
50     });
51 }
52 
load()53 void DeviceInfo::load() {
54     glGetIntegerv(GL_MAX_TEXTURE_SIZE, &mMaxTextureSize);
55 }
56 
57 } /* namespace uirenderer */
58 } /* namespace android */
59