1 /* 2 * Copyright (C) 2020 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 #ifndef _UI_TOUCH_SPOT_CONTROLLER_H 18 #define _UI_TOUCH_SPOT_CONTROLLER_H 19 20 #include <functional> 21 22 #include "PointerControllerContext.h" 23 24 namespace android { 25 26 /* 27 * Helper class for PointerController that specifically handles 28 * touch spot resources and actions for a single display. 29 */ 30 class TouchSpotController { 31 public: 32 TouchSpotController(ui::LogicalDisplayId displayId, PointerControllerContext& context); 33 ~TouchSpotController(); 34 void setSpots(const PointerCoords* spotCoords, const uint32_t* spotIdToIndex, 35 BitSet32 spotIdBits, bool skipScreenshot); 36 void clearSpots(); 37 38 void reloadSpotResources(); 39 bool doAnimations(nsecs_t timestamp); 40 41 void dump(std::string& out, const char* prefix = "") const; 42 43 private: 44 struct Spot { 45 static const uint32_t INVALID_ID = 0xffffffff; 46 47 uint32_t id; 48 sp<Sprite> sprite; 49 float alpha; 50 float scale; 51 float x, y; 52 SpotSpot53 inline Spot(uint32_t id, const sp<Sprite>& sprite) 54 : id(id), 55 sprite(sprite), 56 alpha(1.0f), 57 scale(1.0f), 58 x(0.0f), 59 y(0.0f), 60 mLastIcon(nullptr) {} 61 62 void updateSprite(const SpriteIcon* icon, float x, float y, ui::LogicalDisplayId displayId, 63 bool skipScreenshot); 64 void dump(std::string& out, const char* prefix = "") const; 65 66 private: 67 const SpriteIcon* mLastIcon; 68 }; 69 70 ui::LogicalDisplayId mDisplayId; 71 72 mutable std::mutex mLock; 73 74 PointerResources mResources; 75 76 PointerControllerContext& mContext; 77 78 static constexpr size_t MAX_RECYCLED_SPRITES = 12; 79 static constexpr size_t MAX_SPOTS = 12; 80 81 struct Locked { 82 std::vector<Spot*> displaySpots; 83 std::vector<sp<Sprite>> recycledSprites; 84 85 bool animating{false}; 86 87 } mLocked GUARDED_BY(mLock); 88 89 Spot* getSpot(uint32_t id, const std::vector<Spot*>& spots); 90 Spot* createAndAddSpotLocked(uint32_t id, std::vector<Spot*>& spots); 91 Spot* removeFirstFadingSpotLocked(std::vector<Spot*>& spots); 92 void releaseSpotLocked(Spot* spot); 93 void fadeOutAndReleaseSpotLocked(Spot* spot); 94 void fadeOutAndReleaseAllSpotsLocked(); 95 bool doFadingAnimationLocked(nsecs_t timestamp); 96 void startAnimationLocked(); 97 }; 98 99 } // namespace android 100 101 #endif // _UI_TOUCH_SPOT_CONTROLLER_H 102