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 24 namespace android { 25 namespace uirenderer { 26 27 class DeviceInfo { 28 PREVENT_COPY_AND_ASSIGN(DeviceInfo); 29 30 public: 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 maxTextureSize()41 int maxTextureSize() const { return mMaxTextureSize; } displayInfo()42 const DisplayInfo& displayInfo() const { return mDisplayInfo; } extensions()43 const Extensions& extensions() const { return mExtensions; } 44 multiplyByResolution(uint32_t in)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 52 private: DeviceInfo()53 DeviceInfo() {} ~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