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#ifndef DEVICEINFO_H
17#define DEVICEINFO_H
18
19#include <ui/DisplayInfo.h>
20
21#include "Extensions.h"
22#include "utils/Macros.h"
23
24namespace android {
25namespace uirenderer {
26
27class DeviceInfo {
28    PREVENT_COPY_AND_ASSIGN(DeviceInfo);
29
30public:
31    // returns nullptr if DeviceInfo is not initialized yet
32    // Note this does not have a memory fence so it's up to the caller
33    // to use one if required. Normally this should not be necessary
34    static const DeviceInfo* get();
35
36    // only call this after GL has been initialized, or at any point if compiled
37    // with HWUI_NULL_GPU
38    static void initialize();
39    static void initialize(int maxTextureSize);
40
41    int maxTextureSize() const { return mMaxTextureSize; }
42    const DisplayInfo& displayInfo() const { return mDisplayInfo; }
43    const Extensions& extensions() const { return mExtensions; }
44
45    static uint32_t multiplyByResolution(uint32_t in) {
46        auto di = DeviceInfo::get()->displayInfo();
47        return di.w * di.h * in;
48    }
49
50    static DisplayInfo queryDisplayInfo();
51
52private:
53    DeviceInfo() {}
54    ~DeviceInfo() {}
55
56    void load();
57
58    int mMaxTextureSize;
59    DisplayInfo mDisplayInfo;
60    Extensions mExtensions;
61};
62
63} /* namespace uirenderer */
64} /* namespace android */
65
66#endif /* DEVICEINFO_H */
67