1 /* 2 * Copyright (c) 2011-2013, 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 OVERLAY_GENERIC_PIPE_H 31 #define OVERLAY_GENERIC_PIPE_H 32 33 #include "overlayUtils.h" 34 #include "overlayRotator.h" 35 #include "overlayCtrlData.h" 36 37 namespace overlay { 38 39 class GenericPipe : utils::NoCopy { 40 public: 41 /* ctor */ 42 explicit GenericPipe(int dpy); 43 /* dtor */ 44 ~GenericPipe(); 45 bool init(); 46 bool close(); 47 /* Control APIs */ 48 /* set source using whf, orient and wait flag */ 49 void setSource(const utils::PipeArgs& args); 50 /* set crop a.k.a the region of interest */ 51 void setCrop(const utils::Dim& d); 52 /* set orientation*/ 53 void setTransform(const utils::eTransform& param); 54 /* set mdp posision using dim */ 55 void setPosition(const utils::Dim& dim); 56 /* set visual param */ 57 bool setVisualParams(const MetaData_t &metadata); 58 /* commit changes to the overlay "set"*/ 59 bool commit(); 60 /* Data APIs */ 61 /* queue buffer to the overlay */ 62 bool queueBuffer(int fd, uint32_t offset); 63 /* return cached startup args */ 64 const utils::PipeArgs& getArgs() const; 65 /* retrieve cached crop data */ 66 utils::Dim getCrop() const; 67 /* is closed */ 68 bool isClosed() const; 69 /* is open */ 70 bool isOpen() const; 71 /* return Ctrl fd. Used for S3D */ 72 int getCtrlFd() const; 73 /* dump the state of the object */ 74 void dump() const; 75 /* Return the dump in the specified buffer */ 76 void getDump(char *buf, size_t len); 77 78 private: 79 /* set Closed pipe */ 80 bool setClosed(); 81 82 int mFbNum; 83 /* Ctrl/Data aggregator */ 84 CtrlData mCtrlData; 85 Rotator* mRot; 86 //Whether rotator is used for 0-rot or otherwise 87 bool mRotUsed; 88 //Whether we will do downscale opt. This is just a request. If the frame is 89 //not a candidate, we might not do it. 90 bool mRotDownscaleOpt; 91 //Whether the source is prerotated. 92 bool mPreRotated; 93 /* Pipe open or closed */ 94 enum ePipeState { 95 CLOSED, 96 OPEN 97 }; 98 ePipeState pipeState; 99 }; 100 101 } //namespace overlay 102 103 #endif // OVERLAY_GENERIC_PIPE_H 104