1/* 2* Copyright (c) 2013 The Linux Foundation. All rights reserved. 3* 4* Redistribution and use in source and binary forms, with or without 5* modification, are permitted provided that the following conditions are 6* met: 7* * Redistributions of source code must retain the above copyright 8* notice, this list of conditions and the following disclaimer. 9* * Redistributions in binary form must reproduce the above 10* copyright notice, this list of conditions and the following 11* disclaimer in the documentation and/or other materials provided 12* with the distribution. 13* * Neither the name of The Linux Foundation. nor the names of its 14* contributors may be used to endorse or promote products derived 15* from this software without specific prior written permission. 16* 17* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28*/ 29 30#ifndef HWC_AD_H 31#define HWC_AD_H 32 33#include <overlayUtils.h> 34#include <hwc_utils.h> 35 36struct hwc_context_t; 37 38namespace qhwc { 39 40class AssertiveDisplay { 41public: 42 AssertiveDisplay(hwc_context_t *ctx); 43 void markDoable(hwc_context_t *ctx, const hwc_display_contents_1_t* list); 44 bool prepare(hwc_context_t *ctx, const hwc_rect_t& crop, 45 const overlay::utils::Whf& whf, 46 const private_handle_t *hnd); 47 bool draw(hwc_context_t *ctx, int fd, uint32_t offset); 48 //Resets a few members on each draw round 49 void reset() { mDoable = false; 50 mDest = overlay::utils::OV_INVALID; 51 } 52 bool isDoable() const { return mDoable; } 53 int getDstFd() const; 54 uint32_t getDstOffset() const; 55 56private: 57 bool mDoable; 58 bool mTurnedOff; 59 //State of feature existence on certain devices and configs. 60 bool mFeatureEnabled; 61 overlay::utils::eDest mDest; 62 void turnOffAD(); 63}; 64 65} 66#endif 67