[1711] | 1 | /* |
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| 2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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| 3 | * > www.orxonox.net < |
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| 4 | * |
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| 5 | * |
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| 6 | * License notice: |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 21 | * |
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| 22 | * Author: |
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[3084] | 23 | * Oliver Scheuss |
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[1711] | 24 | * Co-authors: |
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| 25 | * ... |
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| 26 | * |
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| 27 | */ |
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| 28 | |
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[1701] | 29 | #include "Gamestate.h" |
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[3214] | 30 | |
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[2773] | 31 | #include <zlib.h> |
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[3214] | 32 | |
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| 33 | #include "util/Debug.h" |
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[2896] | 34 | #include "core/GameMode.h" |
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[3214] | 35 | #include "core/ObjectList.h" |
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| 36 | #include "network/synchronisable/Synchronisable.h" |
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| 37 | #include "network/GamestateHandler.h" |
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[1701] | 38 | |
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[2171] | 39 | namespace orxonox { |
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[1701] | 40 | |
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| 41 | namespace packet { |
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| 42 | |
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[2662] | 43 | #define GAMESTATE_START(data) (data + GamestateHeader::getSize()) |
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[1740] | 44 | |
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[3214] | 45 | #define PACKET_FLAG_GAMESTATE PacketFlag::Reliable |
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[2087] | 46 | |
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[7153] | 47 | inline bool memzero( uint8_t* data, uint32_t datalength) |
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| 48 | { |
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| 49 | uint64_t* d = (uint64_t*)data; |
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[2662] | 50 | |
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[7153] | 51 | for( unsigned int i=0; i<datalength/8; i++ ) |
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| 52 | { |
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| 53 | if( *(d+i) != 0 ) |
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| 54 | return false; |
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| 55 | } |
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| 56 | // now process the rest (when datalength isn't a multiple of 4) |
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| 57 | for( unsigned int j = 8*(datalength/8); j<datalength; j++ ) |
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| 58 | { |
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| 59 | if( *(data+j) != 0 ) |
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| 60 | return false; |
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| 61 | } |
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| 62 | return true; |
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| 63 | } |
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| 64 | |
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| 65 | |
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| 66 | Gamestate::Gamestate(): |
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| 67 | header_(0) |
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[1701] | 68 | { |
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[1907] | 69 | flags_ = flags_ | PACKET_FLAG_GAMESTATE; |
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[1701] | 70 | } |
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| 71 | |
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[7153] | 72 | |
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[1907] | 73 | Gamestate::Gamestate(uint8_t *data, unsigned int clientID): |
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[7153] | 74 | Packet(data, clientID) |
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[1701] | 75 | { |
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[1907] | 76 | flags_ = flags_ | PACKET_FLAG_GAMESTATE; |
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[2662] | 77 | header_ = new GamestateHeader(data_); |
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[1701] | 78 | } |
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| 79 | |
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[7153] | 80 | |
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[1907] | 81 | Gamestate::Gamestate(uint8_t *data) |
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| 82 | { |
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| 83 | flags_ = flags_ | PACKET_FLAG_GAMESTATE; |
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[7153] | 84 | data_ = data; |
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[2662] | 85 | header_ = new GamestateHeader(data_); |
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[1907] | 86 | } |
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[1701] | 87 | |
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[7153] | 88 | |
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[2662] | 89 | Gamestate::Gamestate(const Gamestate& g) : |
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[7153] | 90 | Packet( *(Packet*)&g ), nrOfVariables_(0) |
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[2662] | 91 | { |
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| 92 | flags_ = flags_ | PACKET_FLAG_GAMESTATE; |
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| 93 | header_ = new GamestateHeader(data_); |
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[7153] | 94 | sizes_ = g.sizes_; |
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[2662] | 95 | } |
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[1907] | 96 | |
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[2662] | 97 | |
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[1701] | 98 | Gamestate::~Gamestate() |
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| 99 | { |
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[3198] | 100 | if( header_ ) |
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| 101 | delete header_; |
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[1701] | 102 | } |
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| 103 | |
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[7153] | 104 | |
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[2171] | 105 | bool Gamestate::collectData(int id, uint8_t mode) |
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[1701] | 106 | { |
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[2662] | 107 | assert(this->header_==0); // make sure the header didn't exist before |
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| 108 | uint32_t tempsize=0, currentsize=0; |
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[1751] | 109 | assert(data_==0); |
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[2662] | 110 | uint32_t size = calcGamestateSize(id, mode); |
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[1740] | 111 | |
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[1701] | 112 | COUT(4) << "G.ST.Man: producing gamestate with id: " << id << std::endl; |
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| 113 | if(size==0) |
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| 114 | return false; |
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[2662] | 115 | data_ = new uint8_t[size + GamestateHeader::getSize()]; |
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[7153] | 116 | if(!data_) |
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| 117 | { |
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[1701] | 118 | COUT(2) << "GameStateManager: could not allocate memory" << std::endl; |
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| 119 | return false; |
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| 120 | } |
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[6417] | 121 | |
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[2662] | 122 | // create the header object |
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[3198] | 123 | assert( header_ == 0 ); |
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[2662] | 124 | header_ = new GamestateHeader(data_); |
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[2087] | 125 | |
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[1701] | 126 | //start collect data synchronisable by synchronisable |
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[7153] | 127 | uint8_t *mem = data_; // in this stream store all data of the variables and the headers of the synchronisable |
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[2662] | 128 | mem += GamestateHeader::getSize(); |
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[2171] | 129 | ObjectList<Synchronisable>::iterator it; |
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[7153] | 130 | for(it = ObjectList<Synchronisable>::begin(); it; ++it) |
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| 131 | { |
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[6417] | 132 | |
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[3084] | 133 | // tempsize=it->getSize(id, mode); |
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| 134 | |
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[7153] | 135 | tempsize = it->getData(mem, this->sizes_, id, mode); |
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[3084] | 136 | if ( tempsize != 0 ) |
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| 137 | dataVector_.push_back( obj(it->getObjectID(), it->getCreatorID(), tempsize, mem-data_) ); |
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[6417] | 138 | |
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[2662] | 139 | #ifndef NDEBUG |
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[7153] | 140 | if(currentsize+tempsize > size) |
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| 141 | { |
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[2171] | 142 | assert(0); // if we don't use multithreading this part shouldn't be neccessary |
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[1701] | 143 | // start allocate additional memory |
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| 144 | COUT(3) << "G.St.Man: need additional memory" << std::endl; |
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[2171] | 145 | ObjectList<Synchronisable>::iterator temp = it; |
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[2662] | 146 | uint32_t addsize=tempsize; |
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[1701] | 147 | while(++temp) |
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[1907] | 148 | addsize+=temp->getSize(id, mode); |
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[2662] | 149 | data_ = (uint8_t *)realloc(data_, GamestateHeader::getSize() + currentsize + addsize); |
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[1701] | 150 | if(!data_) |
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| 151 | return false; |
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| 152 | size = currentsize+addsize; |
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| 153 | }// stop allocate additional memory |
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[2662] | 154 | #endif |
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[3084] | 155 | // if(!it->getData(mem, id, mode)) |
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| 156 | // return false; // mem pointer gets automatically increased because of call by reference |
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[1701] | 157 | // increase size counter by size of current synchronisable |
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| 158 | currentsize+=tempsize; |
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| 159 | } |
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[1740] | 160 | |
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| 161 | |
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[1701] | 162 | //start write gamestate header |
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[2662] | 163 | header_->setDataSize( currentsize ); |
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| 164 | header_->setID( id ); |
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[3198] | 165 | header_->setBaseID( GAMESTATEID_INITIAL ); |
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[2662] | 166 | header_->setDiffed( false ); |
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| 167 | header_->setComplete( true ); |
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| 168 | header_->setCompressed( false ); |
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[1701] | 169 | //stop write gamestate header |
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[1740] | 170 | |
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[1701] | 171 | COUT(5) << "G.ST.Man: Gamestate size: " << currentsize << std::endl; |
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| 172 | COUT(5) << "G.ST.Man: 'estimated' (and corrected) Gamestate size: " << size << std::endl; |
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| 173 | return true; |
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| 174 | } |
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| 175 | |
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[7153] | 176 | |
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[2171] | 177 | bool Gamestate::spreadData(uint8_t mode) |
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[1701] | 178 | { |
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[2662] | 179 | COUT(4) << "processing gamestate with id " << header_->getID() << endl; |
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[1751] | 180 | assert(data_); |
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[2662] | 181 | assert(!header_->isCompressed()); |
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| 182 | uint8_t *mem=data_+GamestateHeader::getSize(); |
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[1907] | 183 | Synchronisable *s; |
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[1740] | 184 | |
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[1907] | 185 | // update the data of the objects we received |
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[7153] | 186 | while(mem < data_+GamestateHeader::getSize()+header_->getDataSize()) |
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| 187 | { |
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[2662] | 188 | SynchronisableHeader objectheader(mem); |
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[1701] | 189 | |
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[2662] | 190 | s = Synchronisable::getSynchronisable( objectheader.getObjectID() ); |
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[1907] | 191 | if(!s) |
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[1701] | 192 | { |
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[2896] | 193 | if (!GameMode::isMaster()) |
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[2662] | 194 | { |
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| 195 | Synchronisable::fabricate(mem, mode); |
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| 196 | } |
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| 197 | else |
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| 198 | { |
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[7153] | 199 | mem += objectheader.getDataSize() + ( objectheader.isDiffed() ? SynchronisableHeaderLight::getSize() : SynchronisableHeader::getSize() ); |
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[2662] | 200 | } |
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[1701] | 201 | } |
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[1907] | 202 | else |
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| 203 | { |
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| 204 | bool b = s->updateData(mem, mode); |
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| 205 | assert(b); |
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| 206 | } |
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[1701] | 207 | } |
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[2662] | 208 | // In debug mode, check first, whether there are no duplicate objectIDs |
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| 209 | #ifndef NDEBUG |
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[7153] | 210 | if(this->getID()%1000==1) |
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| 211 | { |
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[3084] | 212 | std::list<uint32_t> v1; |
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| 213 | ObjectList<Synchronisable>::iterator it; |
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[7153] | 214 | for (it = ObjectList<Synchronisable>::begin(); it != ObjectList<Synchronisable>::end(); ++it) |
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| 215 | { |
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| 216 | if (it->getObjectID() == OBJECTID_UNKNOWN) |
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| 217 | { |
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| 218 | if (it->objectMode_ != 0x0) |
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| 219 | { |
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[3084] | 220 | COUT(0) << "Found object with OBJECTID_UNKNOWN on the client with objectMode != 0x0!" << std::endl; |
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| 221 | COUT(0) << "Possible reason for this error: Client created a synchronized object without the Server's approval." << std::endl; |
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| 222 | COUT(0) << "Objects class: " << it->getIdentifier()->getName() << std::endl; |
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| 223 | assert(false); |
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| 224 | } |
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[2662] | 225 | } |
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[7153] | 226 | else |
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| 227 | { |
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[3084] | 228 | std::list<uint32_t>::iterator it2; |
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[7153] | 229 | for (it2 = v1.begin(); it2 != v1.end(); ++it2) |
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| 230 | { |
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| 231 | if (it->getObjectID() == *it2) |
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| 232 | { |
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[3084] | 233 | COUT(0) << "Found duplicate objectIDs on the client!" << std::endl |
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| 234 | << "Are you sure you don't create a Sychnronisable objcect with 'new' \ |
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| 235 | that doesn't have objectMode = 0x0?" << std::endl; |
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| 236 | assert(false); |
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| 237 | } |
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[2662] | 238 | } |
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[3084] | 239 | v1.push_back(it->getObjectID()); |
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[2662] | 240 | } |
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| 241 | } |
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| 242 | } |
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| 243 | #endif |
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[1701] | 244 | return true; |
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| 245 | } |
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| 246 | |
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[7153] | 247 | |
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[2662] | 248 | uint32_t Gamestate::getSize() const |
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[1701] | 249 | { |
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[1711] | 250 | assert(data_); |
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[2662] | 251 | if(header_->isCompressed()) |
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| 252 | return header_->getCompSize()+GamestateHeader::getSize(); |
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[1701] | 253 | else |
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| 254 | { |
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[2662] | 255 | return header_->getDataSize()+GamestateHeader::getSize(); |
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[1701] | 256 | } |
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| 257 | } |
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| 258 | |
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[7153] | 259 | |
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| 260 | bool Gamestate::operator==(packet::Gamestate gs) |
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| 261 | { |
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[2662] | 262 | uint8_t *d1 = data_+GamestateHeader::getSize(); |
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| 263 | uint8_t *d2 = gs.data_+GamestateHeader::getSize(); |
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[3084] | 264 | GamestateHeader* h1 = new GamestateHeader(data_); |
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| 265 | GamestateHeader* h2 = new GamestateHeader(gs.data_); |
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| 266 | assert(h1->getDataSize() == h2->getDataSize()); |
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[1751] | 267 | assert(!isCompressed()); |
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| 268 | assert(!gs.isCompressed()); |
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[3084] | 269 | return memcmp(d1, d2, h1->getDataSize())==0; |
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[1751] | 270 | } |
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| 271 | |
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[7153] | 272 | |
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[1701] | 273 | bool Gamestate::process() |
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| 274 | { |
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[1705] | 275 | return GamestateHandler::addGamestate(this, getClientID()); |
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[1701] | 276 | } |
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| 277 | |
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[1907] | 278 | |
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[1701] | 279 | bool Gamestate::compressData() |
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| 280 | { |
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[2662] | 281 | assert(data_); |
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| 282 | assert(!header_->isCompressed()); |
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| 283 | uLongf buffer = (uLongf)(((header_->getDataSize() + 12)*1.01)+1); |
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[1701] | 284 | if(buffer==0) |
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| 285 | return false; |
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[1740] | 286 | |
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[2662] | 287 | uint8_t *ndata = new uint8_t[buffer+GamestateHeader::getSize()]; |
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| 288 | uint8_t *dest = ndata + GamestateHeader::getSize(); |
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| 289 | uint8_t *source = data_ + GamestateHeader::getSize(); |
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[1701] | 290 | int retval; |
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[2662] | 291 | retval = compress( dest, &buffer, source, (uLong)(header_->getDataSize()) ); |
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[7153] | 292 | switch ( retval ) |
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| 293 | { |
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[1701] | 294 | case Z_OK: COUT(5) << "G.St.Man: compress: successfully compressed" << std::endl; break; |
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[1751] | 295 | case Z_MEM_ERROR: COUT(1) << "G.St.Man: compress: not enough memory available in gamestate.compress" << std::endl; return false; |
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| 296 | case Z_BUF_ERROR: COUT(2) << "G.St.Man: compress: not enough memory available in the buffer in gamestate.compress" << std::endl; return false; |
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| 297 | case Z_DATA_ERROR: COUT(2) << "G.St.Man: compress: data corrupted in gamestate.compress" << std::endl; return false; |
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[1701] | 298 | } |
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| 299 | |
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| 300 | //copy and modify header |
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[2662] | 301 | GamestateHeader *temp = header_; |
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| 302 | header_ = new GamestateHeader(ndata, temp); |
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| 303 | delete temp; |
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[1701] | 304 | //delete old data |
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| 305 | delete[] data_; |
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| 306 | //save new data |
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| 307 | data_ = ndata; |
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[2662] | 308 | header_->setCompSize( buffer ); |
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| 309 | header_->setCompressed( true ); |
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[7153] | 310 | COUT(0) << "gamestate compress datasize: " << header_->getDataSize() << " compsize: " << header_->getCompSize() << std::endl; |
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[1701] | 311 | return true; |
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| 312 | } |
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[7153] | 313 | |
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| 314 | |
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[1701] | 315 | bool Gamestate::decompressData() |
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| 316 | { |
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[2662] | 317 | assert(data_); |
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| 318 | assert(header_->isCompressed()); |
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| 319 | COUT(4) << "GameStateClient: uncompressing gamestate. id: " << header_->getID() << ", baseid: " << header_->getBaseID() << ", datasize: " << header_->getDataSize() << ", compsize: " << header_->getCompSize() << std::endl; |
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| 320 | uint32_t datasize = header_->getDataSize(); |
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| 321 | uint32_t compsize = header_->getCompSize(); |
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| 322 | uint32_t bufsize; |
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[1907] | 323 | bufsize = datasize; |
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[1751] | 324 | assert(bufsize!=0); |
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[2662] | 325 | uint8_t *ndata = new uint8_t[bufsize + GamestateHeader::getSize()]; |
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| 326 | uint8_t *dest = ndata + GamestateHeader::getSize(); |
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| 327 | uint8_t *source = data_ + GamestateHeader::getSize(); |
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[1701] | 328 | int retval; |
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[1751] | 329 | uLongf length=bufsize; |
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| 330 | retval = uncompress( dest, &length, source, (uLong)compsize ); |
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[7153] | 331 | switch ( retval ) |
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| 332 | { |
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[1701] | 333 | case Z_OK: COUT(5) << "successfully decompressed" << std::endl; break; |
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| 334 | case Z_MEM_ERROR: COUT(1) << "not enough memory available" << std::endl; return false; |
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| 335 | case Z_BUF_ERROR: COUT(2) << "not enough memory available in the buffer" << std::endl; return false; |
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| 336 | case Z_DATA_ERROR: COUT(2) << "data corrupted (zlib)" << std::endl; return false; |
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| 337 | } |
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[1752] | 338 | |
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[1701] | 339 | //copy over the header |
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[2662] | 340 | GamestateHeader *temp = header_; |
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| 341 | header_ = new GamestateHeader( data_, header_ ); |
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| 342 | delete temp; |
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[2087] | 343 | |
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[7153] | 344 | if (this->bDataENetAllocated_) |
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| 345 | { |
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[2087] | 346 | // Memory was allocated by ENet. --> We let it be since enet_packet_destroy will |
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| 347 | // deallocated it anyway. So data and packet stay together. |
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| 348 | this->bDataENetAllocated_ = false; |
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| 349 | } |
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[7153] | 350 | else |
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| 351 | { |
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[2087] | 352 | // We allocated the memory in the first place (unlikely). So we destroy the old data |
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| 353 | // and overwrite it with the new decompressed data. |
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| 354 | delete[] this->data_; |
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| 355 | } |
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| 356 | |
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[1751] | 357 | //set new pointers |
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[1701] | 358 | data_ = ndata; |
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[2662] | 359 | header_->setCompressed( false ); |
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| 360 | assert(header_->getDataSize()==datasize); |
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| 361 | assert(header_->getCompSize()==compsize); |
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[1701] | 362 | return true; |
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| 363 | } |
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| 364 | |
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[7153] | 365 | |
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| 366 | Gamestate* Gamestate::diffVariables(Gamestate *base) |
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[1701] | 367 | { |
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[7153] | 368 | assert(this && base); assert(data_ && base->data_); |
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| 369 | assert(!header_->isCompressed() && !base->header_->isCompressed()); |
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[2662] | 370 | assert(!header_->isDiffed()); |
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[7153] | 371 | |
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| 372 | |
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| 373 | // *** first do a raw diff of the two gamestates |
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| 374 | |
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| 375 | uint8_t *baseData = GAMESTATE_START(base->data_); |
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| 376 | uint8_t *origData = GAMESTATE_START(this->data_); |
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| 377 | uint32_t origLength = header_->getDataSize(); |
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| 378 | uint32_t baseLength = base->header_->getDataSize(); |
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| 379 | |
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| 380 | assert( origLength && baseLength ); |
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| 381 | |
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| 382 | uint8_t *nData = new uint8_t[origLength + GamestateHeader::getSize() + sizeof(uint32_t)*this->nrOfVariables_]; // this is the maximum size needed in the worst case |
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| 383 | uint8_t *dest = GAMESTATE_START(nData); |
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| 384 | |
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| 385 | uint32_t baseOffset = 0; //offset in the diffed stream |
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| 386 | uint32_t origOffset = 0; //offset in the new stream with removed 0's |
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| 387 | std::vector<uint32_t>::iterator sizes = this->sizes_.begin(); |
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| 388 | |
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| 389 | while( origOffset < origLength ) |
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| 390 | { |
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| 391 | //iterate through all objects |
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| 392 | |
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| 393 | SynchronisableHeader h(origData+origOffset); |
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| 394 | |
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| 395 | // Find (if possible) the current object in the datastream of the old gamestate |
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| 396 | // Start at the current offset position |
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| 397 | if(baseOffset >= baseLength) |
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| 398 | baseOffset = 0; |
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| 399 | uint8_t* temp = baseData + baseOffset; |
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| 400 | uint32_t objectID = h.getObjectID(); |
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| 401 | assert(temp < baseData+baseLength); |
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| 402 | assert(dest < nData + origLength + GamestateHeader::getSize() + sizeof(uint32_t)*this->nrOfVariables_); |
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| 403 | assert(sizes != this->sizes_.end()); |
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| 404 | while ( temp < baseData+baseLength ) |
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| 405 | { |
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| 406 | SynchronisableHeader htemp(temp); |
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| 407 | if ( htemp.getObjectID() == objectID ) |
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| 408 | { |
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| 409 | assert( h.getClassID() == htemp.getClassID() ); |
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| 410 | goto DODIFF; |
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[1701] | 411 | } |
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[7153] | 412 | temp += htemp.getDataSize()+SynchronisableHeader::getSize(); |
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[1701] | 413 | } |
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[7153] | 414 | // If not found start looking at the beginning |
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| 415 | temp = baseData; |
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| 416 | while ( temp < baseData+baseOffset ) |
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| 417 | { |
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| 418 | SynchronisableHeader htemp(temp); |
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| 419 | if ( htemp.getObjectID() == objectID ) |
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| 420 | { |
---|
| 421 | assert( h.getClassID() == htemp.getClassID() ); |
---|
| 422 | goto DODIFF; |
---|
| 423 | } |
---|
| 424 | temp += htemp.getDataSize()+SynchronisableHeader::getSize(); |
---|
| 425 | } |
---|
| 426 | // Object is new, thus never transmitted -> just copy over |
---|
| 427 | goto DOCOPY; |
---|
| 428 | |
---|
| 429 | |
---|
| 430 | DODIFF: |
---|
| 431 | { |
---|
| 432 | // if(baseOffset==0) |
---|
| 433 | // { |
---|
| 434 | // assert(origOffset==0); |
---|
| 435 | // } |
---|
| 436 | uint32_t objectOffset = SynchronisableHeader::getSize(); // offset inside the object in the origData and baseData |
---|
| 437 | // Check whether the whole object stayed the same |
---|
| 438 | if( memcmp( origData+origOffset+objectOffset, temp+objectOffset, h.getDataSize()) == 0 ) |
---|
| 439 | { |
---|
| 440 | origOffset += objectOffset+ h.getDataSize(); // skip the whole object |
---|
| 441 | baseOffset = temp + h.getDataSize()+SynchronisableHeader::getSize() - baseData; |
---|
| 442 | sizes += Synchronisable::getSynchronisable(h.getObjectID())->getNrOfVariables(); |
---|
| 443 | } |
---|
| 444 | else |
---|
| 445 | { |
---|
| 446 | // COUT(4) << "diff " << h.getObjectID() << ":"; |
---|
| 447 | // Now start to diff the Object |
---|
| 448 | SynchronisableHeaderLight h2(dest); |
---|
| 449 | h2 = h; // copy over the objectheader |
---|
| 450 | VariableID variableID = 0; |
---|
| 451 | uint32_t newObjectOffset = SynchronisableHeaderLight::getSize(); |
---|
| 452 | // iterate through all variables |
---|
| 453 | while( objectOffset < h.getDataSize()+SynchronisableHeader::getSize() ) |
---|
| 454 | { |
---|
| 455 | // check whether variable changed and write id and copy over variable to the new stream |
---|
| 456 | // otherwise skip variable |
---|
| 457 | assert(sizes != this->sizes_.end()); |
---|
| 458 | uint32_t varSize = *sizes; |
---|
| 459 | assert( varSize == Synchronisable::getSynchronisable(h.getObjectID())->getVarSize(variableID) ); |
---|
| 460 | if ( varSize != 0 ) |
---|
| 461 | { |
---|
| 462 | if ( memcmp(origData+origOffset+objectOffset, temp+objectOffset, varSize) != 0 ) |
---|
| 463 | { |
---|
| 464 | // COUT(4) << " c" << varSize; |
---|
| 465 | *(VariableID*)(dest+newObjectOffset) = variableID; // copy over the variableID |
---|
| 466 | newObjectOffset += sizeof(VariableID); |
---|
| 467 | memcpy( dest+newObjectOffset, origData+origOffset+objectOffset, varSize ); |
---|
| 468 | newObjectOffset += varSize; |
---|
| 469 | objectOffset += varSize; |
---|
| 470 | } |
---|
| 471 | else |
---|
| 472 | { |
---|
| 473 | // COUT(4) << " s" << varSize; |
---|
| 474 | objectOffset += varSize; |
---|
| 475 | } |
---|
| 476 | } |
---|
| 477 | |
---|
| 478 | ++variableID; |
---|
| 479 | ++sizes; |
---|
| 480 | } |
---|
| 481 | if( Synchronisable::getSynchronisable(h.getObjectID())->getNrOfVariables() != variableID ) |
---|
| 482 | sizes += Synchronisable::getSynchronisable(h.getObjectID())->getNrOfVariables() - variableID; |
---|
| 483 | // COUT(4) << endl; |
---|
| 484 | h2.setDiffed(true); |
---|
| 485 | h2.setDataSize(newObjectOffset-SynchronisableHeaderLight::getSize()); |
---|
| 486 | assert(objectOffset == h.getDataSize()+SynchronisableHeader::getSize()); |
---|
| 487 | origOffset += objectOffset; |
---|
| 488 | baseOffset += temp + h.getDataSize()+SynchronisableHeader::getSize() - baseData; |
---|
| 489 | dest += newObjectOffset; |
---|
| 490 | } |
---|
| 491 | |
---|
| 492 | continue; |
---|
| 493 | } |
---|
| 494 | |
---|
| 495 | DOCOPY: |
---|
| 496 | { |
---|
| 497 | // Just copy over the whole Object |
---|
| 498 | memcpy( dest, origData+origOffset, h.getDataSize()+SynchronisableHeader::getSize() ); |
---|
| 499 | dest += h.getDataSize()+SynchronisableHeader::getSize(); |
---|
| 500 | origOffset += h.getDataSize()+SynchronisableHeader::getSize(); |
---|
| 501 | assert( Synchronisable::getSynchronisable(h.getObjectID()) ); |
---|
| 502 | // COUT(4) << "copy " << h.getObjectID() << endl; |
---|
| 503 | // COUT(4) << "copy " << h.getObjectID() << ":"; |
---|
| 504 | //sizes += Synchronisable::getSynchronisable(h.getObjectID())->getNrOfVariables(); |
---|
| 505 | for( unsigned int i = 0; i < Synchronisable::getSynchronisable(h.getObjectID())->getNrOfVariables(); ++i ) |
---|
| 506 | { |
---|
| 507 | // COUT(4) << " " << *sizes; |
---|
| 508 | ++sizes; |
---|
| 509 | } |
---|
| 510 | // COUT(4) << endl; |
---|
| 511 | assert(sizes != this->sizes_.end() || origOffset>=origLength); |
---|
| 512 | continue; |
---|
| 513 | } |
---|
[1701] | 514 | } |
---|
| 515 | |
---|
[7153] | 516 | |
---|
| 517 | Gamestate *g = new Gamestate(nData, getClientID()); |
---|
| 518 | assert(g->header_); |
---|
[2662] | 519 | *(g->header_) = *header_; |
---|
| 520 | g->header_->setBaseID( base->getID() ); |
---|
[7153] | 521 | g->header_->setDataSize(dest - nData - GamestateHeader::getSize()); |
---|
[1751] | 522 | g->flags_=flags_; |
---|
| 523 | g->packetDirection_ = packetDirection_; |
---|
[7153] | 524 | assert(!g->isCompressed()); |
---|
[1701] | 525 | return g; |
---|
[7153] | 526 | } |
---|
[3198] | 527 | |
---|
[7153] | 528 | |
---|
| 529 | Gamestate* Gamestate::diffData(Gamestate *base) |
---|
[3198] | 530 | { |
---|
| 531 | assert(this && base); assert(data_ && base->data_); |
---|
| 532 | assert(!header_->isCompressed() && !base->header_->isCompressed()); |
---|
| 533 | assert(!header_->isDiffed()); |
---|
[6417] | 534 | |
---|
[3198] | 535 | uint8_t *basep = GAMESTATE_START(base->data_); |
---|
| 536 | uint8_t *gs = GAMESTATE_START(this->data_); |
---|
| 537 | uint32_t dest_length = header_->getDataSize(); |
---|
[6417] | 538 | |
---|
[3198] | 539 | if(dest_length==0) |
---|
| 540 | return NULL; |
---|
[6417] | 541 | |
---|
[3198] | 542 | uint8_t *ndata = new uint8_t[dest_length*sizeof(uint8_t)+GamestateHeader::getSize()]; |
---|
| 543 | uint8_t *dest = GAMESTATE_START(ndata); |
---|
[6417] | 544 | |
---|
[3198] | 545 | rawDiff( dest, gs, basep, header_->getDataSize(), base->header_->getDataSize() ); |
---|
| 546 | #ifndef NDEBUG |
---|
| 547 | uint8_t *dest2 = new uint8_t[dest_length]; |
---|
| 548 | rawDiff( dest2, dest, basep, header_->getDataSize(), base->header_->getDataSize() ); |
---|
| 549 | assert( memcmp( dest2, gs, dest_length) == 0 ); |
---|
[5929] | 550 | delete dest2; |
---|
[3198] | 551 | #endif |
---|
| 552 | |
---|
| 553 | Gamestate *g = new Gamestate(ndata, getClientID()); |
---|
| 554 | assert(g->header_); |
---|
| 555 | *(g->header_) = *header_; |
---|
| 556 | g->header_->setDiffed( true ); |
---|
| 557 | g->header_->setBaseID( base->getID() ); |
---|
| 558 | g->flags_=flags_; |
---|
| 559 | g->packetDirection_ = packetDirection_; |
---|
| 560 | assert(g->isDiffed()); |
---|
| 561 | assert(!g->isCompressed()); |
---|
| 562 | return g; |
---|
[1701] | 563 | } |
---|
| 564 | |
---|
[7153] | 565 | |
---|
| 566 | Gamestate* Gamestate::undiff(Gamestate *base) |
---|
[3198] | 567 | { |
---|
| 568 | assert(this && base); assert(data_ && base->data_); |
---|
| 569 | assert(!header_->isCompressed() && !base->header_->isCompressed()); |
---|
| 570 | assert(header_->isDiffed()); |
---|
[6417] | 571 | |
---|
[3198] | 572 | uint8_t *basep = GAMESTATE_START(base->data_); |
---|
| 573 | uint8_t *gs = GAMESTATE_START(this->data_); |
---|
| 574 | uint32_t dest_length = header_->getDataSize(); |
---|
[6417] | 575 | |
---|
[3198] | 576 | if(dest_length==0) |
---|
| 577 | return NULL; |
---|
[6417] | 578 | |
---|
[3198] | 579 | uint8_t *ndata = new uint8_t[dest_length*sizeof(uint8_t)+GamestateHeader::getSize()]; |
---|
| 580 | uint8_t *dest = ndata + GamestateHeader::getSize(); |
---|
[6417] | 581 | |
---|
[3198] | 582 | rawDiff( dest, gs, basep, header_->getDataSize(), base->header_->getDataSize() ); |
---|
[6417] | 583 | |
---|
[3198] | 584 | Gamestate *g = new Gamestate(ndata, getClientID()); |
---|
| 585 | assert(g->header_); |
---|
| 586 | *(g->header_) = *header_; |
---|
| 587 | g->header_->setDiffed( false ); |
---|
| 588 | g->flags_=flags_; |
---|
| 589 | g->packetDirection_ = packetDirection_; |
---|
| 590 | assert(!g->isDiffed()); |
---|
| 591 | assert(!g->isCompressed()); |
---|
| 592 | return g; |
---|
| 593 | } |
---|
| 594 | |
---|
| 595 | |
---|
| 596 | void Gamestate::rawDiff( uint8_t* newdata, uint8_t* data, uint8_t* basedata, uint32_t datalength, uint32_t baselength) |
---|
| 597 | { |
---|
| 598 | uint64_t* gd = (uint64_t*)data; |
---|
| 599 | uint64_t* bd = (uint64_t*)basedata; |
---|
| 600 | uint64_t* nd = (uint64_t*)newdata; |
---|
[6417] | 601 | |
---|
[3198] | 602 | unsigned int i; |
---|
| 603 | for( i=0; i<datalength/8; i++ ) |
---|
| 604 | { |
---|
| 605 | if( i<baselength/8 ) |
---|
| 606 | *(nd+i) = *(gd+i) ^ *(bd+i); // xor the data |
---|
| 607 | else |
---|
| 608 | *(nd+i) = *(gd+i); // just copy over the data |
---|
| 609 | } |
---|
| 610 | unsigned int j; |
---|
| 611 | // now process the rest (when datalength isn't a multiple of 4) |
---|
| 612 | for( j = 8*(datalength/8); j<datalength; j++ ) |
---|
| 613 | { |
---|
| 614 | if( j<baselength ) |
---|
| 615 | *(newdata+j) = *(data+j) ^ *(basedata+j); // xor |
---|
| 616 | else |
---|
| 617 | *(newdata+j) = *(data+j); // just copy |
---|
| 618 | } |
---|
| 619 | assert(j==datalength); |
---|
| 620 | } |
---|
| 621 | |
---|
[7153] | 622 | |
---|
[2662] | 623 | Gamestate* Gamestate::doSelection(unsigned int clientID, unsigned int targetSize){ |
---|
[1907] | 624 | assert(data_); |
---|
[2662] | 625 | std::list<obj>::iterator it; |
---|
[2087] | 626 | |
---|
[1907] | 627 | // allocate memory for new data |
---|
[2662] | 628 | uint8_t *gdata = new uint8_t[header_->getDataSize()+GamestateHeader::getSize()]; |
---|
[1907] | 629 | // create a gamestate out of it |
---|
| 630 | Gamestate *gs = new Gamestate(gdata); |
---|
[2662] | 631 | uint8_t *newdata = gdata + GamestateHeader::getSize(); |
---|
[1907] | 632 | uint8_t *origdata = GAMESTATE_START(data_); |
---|
[2087] | 633 | |
---|
[1907] | 634 | //copy the GamestateHeader |
---|
[2662] | 635 | assert(gs->header_); |
---|
| 636 | *(gs->header_) = *header_; |
---|
[2087] | 637 | |
---|
[2662] | 638 | uint32_t objectOffset; |
---|
| 639 | unsigned int objectsize, destsize=0; |
---|
| 640 | // TODO: Why is this variable not used? |
---|
| 641 | //Synchronisable *object; |
---|
[2087] | 642 | |
---|
[2662] | 643 | //call TrafficControl |
---|
[3084] | 644 | TrafficControl::getInstance()->processObjectList( clientID, header_->getID(), dataVector_ ); |
---|
[2662] | 645 | |
---|
[1907] | 646 | //copy in the zeros |
---|
[3084] | 647 | // std::list<obj>::iterator itt; |
---|
| 648 | // COUT(0) << "myvector contains:"; |
---|
| 649 | // for ( itt=dataVector_.begin() ; itt!=dataVector_.end(); itt++ ) |
---|
[7153] | 650 | // COUT(0) << " " << (*itt).objID; |
---|
[3084] | 651 | // COUT(0) << endl; |
---|
| 652 | for(it=dataVector_.begin(); it!=dataVector_.end();){ |
---|
[2662] | 653 | SynchronisableHeader oldobjectheader(origdata); |
---|
| 654 | SynchronisableHeader newobjectheader(newdata); |
---|
[7153] | 655 | if ( (*it).objSize == 0 ) |
---|
[2662] | 656 | { |
---|
| 657 | ++it; |
---|
| 658 | continue; |
---|
| 659 | } |
---|
[7153] | 660 | objectsize = oldobjectheader.getDataSize()+SynchronisableHeader::getSize(); |
---|
[2662] | 661 | objectOffset=SynchronisableHeader::getSize(); //skip the size and the availableData variables in the objectheader |
---|
[7153] | 662 | if ( (*it).objID == oldobjectheader.getObjectID() ){ |
---|
[2662] | 663 | memcpy(newdata, origdata, objectsize); |
---|
| 664 | ++it; |
---|
[1907] | 665 | }else{ |
---|
[2662] | 666 | newobjectheader = oldobjectheader; |
---|
[2171] | 667 | memset(newdata+objectOffset, 0, objectsize-objectOffset); |
---|
[1907] | 668 | } |
---|
| 669 | newdata += objectsize; |
---|
| 670 | origdata += objectsize; |
---|
[2662] | 671 | destsize += objectsize; |
---|
[1907] | 672 | } |
---|
[2662] | 673 | #ifndef NDEBUG |
---|
| 674 | uint32_t origsize = destsize; |
---|
| 675 | while ( origsize < header_->getDataSize() ) |
---|
| 676 | { |
---|
| 677 | SynchronisableHeader oldobjectheader(origdata); |
---|
[7153] | 678 | objectsize = oldobjectheader.getDataSize()+SynchronisableHeader::getSize(); |
---|
[2662] | 679 | origdata += objectsize; |
---|
| 680 | origsize += objectsize; |
---|
[1907] | 681 | } |
---|
[2662] | 682 | assert(origsize==header_->getDataSize()); |
---|
| 683 | assert(destsize!=0); |
---|
| 684 | #endif |
---|
| 685 | gs->header_->setDataSize( destsize ); |
---|
[1907] | 686 | return gs; |
---|
| 687 | } |
---|
| 688 | |
---|
[2087] | 689 | |
---|
[2662] | 690 | uint32_t Gamestate::calcGamestateSize(int32_t id, uint8_t mode) |
---|
[1701] | 691 | { |
---|
[7153] | 692 | uint32_t size = 0; |
---|
| 693 | uint32_t nrOfVariables = 0; |
---|
[1701] | 694 | // get the start of the Synchronisable list |
---|
[2171] | 695 | ObjectList<Synchronisable>::iterator it; |
---|
[1701] | 696 | // get total size of gamestate |
---|
[7153] | 697 | for(it = ObjectList<Synchronisable>::begin(); it; ++it){ |
---|
[1907] | 698 | size+=it->getSize(id, mode); // size of the actual data of the synchronisable |
---|
[7153] | 699 | nrOfVariables += it->getNrOfVariables(); |
---|
| 700 | } |
---|
| 701 | // COUT(0) << "allocating " << nrOfVariables << " ints" << endl; |
---|
| 702 | this->sizes_.reserve(nrOfVariables); |
---|
[1701] | 703 | return size; |
---|
| 704 | } |
---|
| 705 | |
---|
[7153] | 706 | |
---|
[2662] | 707 | } //namespace packet |
---|
| 708 | } //namespace orxonox |
---|