1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * Copyright (C) 2012, The Linux Foundation. All rights reserved. 4 * 5 * Not a Contribution, Apache license notifications and license are 6 * retained for attribution purposes only. 7 * 8 * Licensed under the Apache License, Version 2.0 (the "License"); 9 * you may not use this file except in compliance with the License. 10 * You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 #ifndef HWC_FBUPDATE_H 21 #define HWC_FBUPDATE_H 22 #include "hwc_utils.h" 23 #include "overlay.h" 24 25 #define LIKELY( exp ) (__builtin_expect( (exp) != 0, true )) 26 #define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false )) 27 28 namespace qhwc { 29 namespace ovutils = overlay::utils; 30 31 //Framebuffer update Interface 32 class IFBUpdate { 33 public: 34 explicit IFBUpdate(const int& dpy) : mDpy(dpy) {} 35 virtual ~IFBUpdate() {}; 36 // Sets up members and prepares overlay if conditions are met 37 virtual bool prepare(hwc_context_t *ctx, hwc_display_contents_1 *list, 38 int fbZorder) = 0; 39 // Draws layer 40 virtual bool draw(hwc_context_t *ctx, private_handle_t *hnd) = 0; 41 //Reset values 42 virtual void reset(); 43 //Factory method that returns a low-res or high-res version 44 static IFBUpdate *getObject(const int& width, const int& dpy); 45 46 protected: 47 const int mDpy; // display to update 48 bool mModeOn; // if prepare happened 49 }; 50 51 //Low resolution (<= 2048) panel handler. 52 class FBUpdateLowRes : public IFBUpdate { 53 public: 54 explicit FBUpdateLowRes(const int& dpy); 55 virtual ~FBUpdateLowRes() {}; 56 bool prepare(hwc_context_t *ctx, hwc_display_contents_1 *list, 57 int fbZorder); 58 bool draw(hwc_context_t *ctx, private_handle_t *hnd); 59 void reset(); 60 private: 61 bool configure(hwc_context_t *ctx, hwc_display_contents_1 *list, 62 int fbZorder); 63 ovutils::eDest mDest; //pipe to draw on 64 }; 65 66 //High resolution (> 2048) panel handler. 67 class FBUpdateHighRes : public IFBUpdate { 68 public: 69 explicit FBUpdateHighRes(const int& dpy); 70 virtual ~FBUpdateHighRes() {}; 71 bool prepare(hwc_context_t *ctx, hwc_display_contents_1 *list, 72 int fbZorder); 73 bool draw(hwc_context_t *ctx, private_handle_t *hnd); 74 void reset(); 75 private: 76 bool configure(hwc_context_t *ctx, hwc_display_contents_1 *list, 77 int fbZorder); 78 ovutils::eDest mDestLeft; //left pipe to draw on 79 ovutils::eDest mDestRight; //right pipe to draw on 80 }; 81 82 }; //namespace qhwc 83 84 #endif //HWC_FBUPDATE_H 85
