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Diffstat (limited to 'indra/newview/llpathfindingnavmesh.cpp')
| -rw-r--r-- | indra/newview/llpathfindingnavmesh.cpp | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/indra/newview/llpathfindingnavmesh.cpp b/indra/newview/llpathfindingnavmesh.cpp new file mode 100644 index 0000000000..4e4e9fceef --- /dev/null +++ b/indra/newview/llpathfindingnavmesh.cpp @@ -0,0 +1,201 @@ +/** + * @file llpathfindingnavmesh.cpp + * @author William Todd Stinson + * @brief A class for representing the navmesh of a pathfinding region. + * + * $LicenseInfo:firstyear=2002&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2010, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + */ + +#include "llviewerprecompiledheaders.h" +#include "lluuid.h" +#include "llpathfindingnavmesh.h" +#include "llpathfindingnavmeshstatus.h" +#include "llsdserialize.h" + +#include <string> + +#define NAVMESH_VERSION_FIELD "navmesh_version" +#define NAVMESH_DATA_FIELD "navmesh_data" + +//--------------------------------------------------------------------------- +// LLPathfindingNavMesh +//--------------------------------------------------------------------------- + +LLPathfindingNavMesh::LLPathfindingNavMesh(const LLUUID &pRegionUUID) + : mNavMeshStatus(pRegionUUID), + mNavMeshRequestStatus(kNavMeshRequestUnknown), + mNavMeshSignal(), + mNavMeshData() + +{ +} + +LLPathfindingNavMesh::~LLPathfindingNavMesh() +{ +} + +LLPathfindingNavMesh::navmesh_slot_t LLPathfindingNavMesh::registerNavMeshListener(navmesh_callback_t pNavMeshCallback) +{ + return mNavMeshSignal.connect(pNavMeshCallback); +} + +bool LLPathfindingNavMesh::hasNavMeshVersion(const LLPathfindingNavMeshStatus &pNavMeshStatus) const +{ + return ((mNavMeshStatus.getVersion() == pNavMeshStatus.getVersion()) && + ((mNavMeshRequestStatus == kNavMeshRequestStarted) || (mNavMeshRequestStatus == kNavMeshRequestCompleted) || + ((mNavMeshRequestStatus == kNavMeshRequestChecking) && !mNavMeshData.empty()))); +} + +void LLPathfindingNavMesh::handleNavMeshWaitForRegionLoad() +{ + setRequestStatus(kNavMeshRequestWaiting); +} + +void LLPathfindingNavMesh::handleNavMeshCheckVersion() +{ + setRequestStatus(kNavMeshRequestChecking); +} + +void LLPathfindingNavMesh::handleRefresh(const LLPathfindingNavMeshStatus &pNavMeshStatus) +{ + llassert(mNavMeshStatus.getRegionUUID() == pNavMeshStatus.getRegionUUID()); + llassert(mNavMeshStatus.getVersion() == pNavMeshStatus.getVersion()); + mNavMeshStatus = pNavMeshStatus; + if (mNavMeshRequestStatus == kNavMeshRequestChecking) + { + llassert(!mNavMeshData.empty()); + setRequestStatus(kNavMeshRequestCompleted); + } + else + { + sendStatus(); + } +} + +void LLPathfindingNavMesh::handleNavMeshNewVersion(const LLPathfindingNavMeshStatus &pNavMeshStatus) +{ + llassert(mNavMeshStatus.getRegionUUID() == pNavMeshStatus.getRegionUUID()); + if (mNavMeshStatus.getVersion() == pNavMeshStatus.getVersion()) + { + mNavMeshStatus = pNavMeshStatus; + sendStatus(); + } + else + { + mNavMeshData.clear(); + mNavMeshStatus = pNavMeshStatus; + setRequestStatus(kNavMeshRequestNeedsUpdate); + } +} + +void LLPathfindingNavMesh::handleNavMeshStart(const LLPathfindingNavMeshStatus &pNavMeshStatus) +{ + llassert(mNavMeshStatus.getRegionUUID() == pNavMeshStatus.getRegionUUID()); + mNavMeshStatus = pNavMeshStatus; + setRequestStatus(kNavMeshRequestStarted); +} + +void LLPathfindingNavMesh::handleNavMeshResult(const LLSD &pContent, U32 pNavMeshVersion) +{ + if (pContent.has(NAVMESH_VERSION_FIELD)) + { + llassert(pContent.get(NAVMESH_VERSION_FIELD).isInteger()); + llassert(pContent.get(NAVMESH_VERSION_FIELD).asInteger() >= 0); + U32 embeddedNavMeshVersion = static_cast<U32>(pContent.get(NAVMESH_VERSION_FIELD).asInteger()); + llassert(embeddedNavMeshVersion == pNavMeshVersion); // stinson 03/13/2012 : does this ever occur? + if (embeddedNavMeshVersion != pNavMeshVersion) + { + llwarns << "Mismatch between expected and embedded navmesh versions occurred" << llendl; + pNavMeshVersion = embeddedNavMeshVersion; + } + } + + if (mNavMeshStatus.getVersion() == pNavMeshVersion) + { + ENavMeshRequestStatus status; + if ( pContent.has(NAVMESH_DATA_FIELD) ) + { + const LLSD::Binary &value = pContent.get(NAVMESH_DATA_FIELD).asBinary(); + unsigned int binSize = value.size(); + std::string newStr(reinterpret_cast<const char *>(&value[0]), binSize); + std::istringstream streamdecomp( newStr ); + unsigned int decompBinSize = 0; + bool valid = false; + U8* pUncompressedNavMeshContainer = unzip_llsdNavMesh( valid, decompBinSize, streamdecomp, binSize ) ; + if ( !valid ) + { + llwarns << "Unable to decompress the navmesh llsd." << llendl; + status = kNavMeshRequestError; + } + else + { + llassert(pUncompressedNavMeshContainer); + mNavMeshData.resize( decompBinSize ); + memcpy( &mNavMeshData[0], &pUncompressedNavMeshContainer[0], decompBinSize ); + status = kNavMeshRequestCompleted; + } + if ( pUncompressedNavMeshContainer ) + { + free( pUncompressedNavMeshContainer ); + } + } + else + { + llwarns << "No mesh data received" << llendl; + status = kNavMeshRequestError; + } + setRequestStatus(status); + } +} + +void LLPathfindingNavMesh::handleNavMeshNotEnabled() +{ + mNavMeshData.clear(); + setRequestStatus(kNavMeshRequestNotEnabled); +} + +void LLPathfindingNavMesh::handleNavMeshError() +{ + mNavMeshData.clear(); + setRequestStatus(kNavMeshRequestError); +} + +void LLPathfindingNavMesh::handleNavMeshError(U32 pStatus, const std::string &pReason, const std::string &pURL, U32 pNavMeshVersion) +{ + llwarns << "error with request to URL '" << pURL << "' because " << pReason << " (statusCode:" << pStatus << ")" << llendl; + if (mNavMeshStatus.getVersion() == pNavMeshVersion) + { + handleNavMeshError(); + } +} + +void LLPathfindingNavMesh::setRequestStatus(ENavMeshRequestStatus pNavMeshRequestStatus) +{ + mNavMeshRequestStatus = pNavMeshRequestStatus; + sendStatus(); +} + +void LLPathfindingNavMesh::sendStatus() +{ + mNavMeshSignal(mNavMeshRequestStatus, mNavMeshStatus, mNavMeshData); +} + |