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 31#ifndef HWC_VIRTUAL_DISPLAY_H 32#define HWC_VIRTUAL_DISPLAY_H 33 34#include <linux/fb.h> 35 36struct hwc_context_t; 37 38namespace qhwc { 39 40class VirtualDisplay 41{ 42public: 43 VirtualDisplay(hwc_context_t* ctx); 44 ~VirtualDisplay(); 45 int configure(); 46 void getAttributes(int& width, int& height); 47 int teardown(); 48 bool isConnected() { 49 return mHwcContext->dpyAttr[HWC_DISPLAY_VIRTUAL].connected; 50 } 51private: 52 bool openFrameBuffer(); 53 bool closeFrameBuffer(); 54 void setAttributes(); 55 void initResolution(uint32_t &extW, uint32_t &extH); 56 void setToPrimary(uint32_t maxArea, uint32_t priW, uint32_t priH, 57 uint32_t &extW, uint32_t &extH); 58 void setDownScaleMode(uint32_t maxArea); 59 60 int mFd; 61 hwc_context_t *mHwcContext; 62 fb_var_screeninfo mVInfo; 63}; 64}; //qhwc 65// --------------------------------------------------------------------------- 66#endif //HWC_VIRTUAL_DISPLAY_H 67