vncinput.cc revision 9330:4a3269a11230
1/* 2 * Copyright (c) 2010 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions are 16 * met: redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer; 18 * redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution; 21 * neither the name of the copyright holders nor the names of its 22 * contributors may be used to endorse or promote products derived from 23 * this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 * 37 * Authors: Ali Saidi 38 * William Wang 39 */ 40 41/** @file 42 * Implementiation of a VNC input 43 */ 44 45#include <sys/types.h> 46 47#include "base/vnc/vncinput.hh" 48#include "base/output.hh" //simout 49#include "debug/VNC.hh" 50 51using namespace std; 52 53VncInput::VncInput(const Params *p) 54 : SimObject(p), keyboard(NULL), mouse(NULL), 55 vc(NULL), fbPtr(NULL), videoMode(VideoConvert::UnknownMode), 56 _videoWidth(1), _videoHeight(1), captureEnabled(p->frame_capture), 57 captureCurrentFrame(0), captureLastHash(0), captureBitmap(0) 58{ 59 if (captureEnabled) { 60 // remove existing frame output directory if it exists, then create a 61 // clean empty directory 62 const string FRAME_OUTPUT_SUBDIR = "frames_" + name(); 63 simout.remove(FRAME_OUTPUT_SUBDIR, true); 64 captureOutputDirectory = simout.createSubdirectory( 65 FRAME_OUTPUT_SUBDIR); 66 } 67} 68 69void 70VncInput::setFrameBufferParams(VideoConvert::Mode mode, uint16_t width, 71 uint16_t height) 72{ 73 DPRINTF(VNC, "Updating video params: mode: %d width: %d height: %d\n", mode, 74 width, height); 75 76 if (mode != videoMode || width != videoWidth() || height != videoHeight()) { 77 videoMode = mode; 78 _videoWidth = width; 79 _videoHeight = height; 80 81 if (vc) 82 delete vc; 83 84 vc = new VideoConvert(mode, VideoConvert::rgb8888, videoWidth(), 85 videoHeight()); 86 87 if (captureEnabled) { 88 // create bitmap of the frame with new attributes 89 if (captureBitmap) 90 delete captureBitmap; 91 92 assert(fbPtr); 93 captureBitmap = new Bitmap(videoMode, width, height, fbPtr); 94 assert(captureBitmap); 95 } 96 } 97} 98 99void 100VncInput::captureFrameBuffer() 101{ 102 assert(captureBitmap); 103 104 // skip identical frames 105 uint64_t new_hash = captureBitmap->getHash(); 106 if (captureLastHash == new_hash) 107 return; 108 captureLastHash = new_hash; 109 110 // get the filename for the current frame 111 char frameFilenameBuffer[64]; 112 snprintf(frameFilenameBuffer, 64, "fb.%06d.%lld.bmp.gz", 113 captureCurrentFrame, static_cast<long long int>(curTick())); 114 const string frameFilename(frameFilenameBuffer); 115 116 // create the compressed framebuffer file 117 ostream *fb_out = simout.create(captureOutputDirectory + frameFilename, 118 true); 119 captureBitmap->write(fb_out); 120 simout.close(fb_out); 121 122 ++captureCurrentFrame; 123} 124 125// create the VNC Replayer object 126VncInput * 127VncInputParams::create() 128{ 129 return new VncInput(this); 130} 131