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MRF: implement deferred driver loading
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,149 @@ | ||
| /* | ||
| * Copyright (c) 2002-2012, California Institute of Technology. | ||
| * All rights reserved. Based on Government Sponsored Research under contracts | ||
| * NAS7-1407 and/or NAS7-03001. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions are met: | ||
| * 1. Redistributions of source code must retain the above copyright notice, | ||
| * this list of conditions and the following disclaimer. | ||
| * 2. Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in the | ||
| * documentation and/or other materials provided with the distribution. | ||
| * 3. Neither the name of the California Institute of Technology (Caltech), | ||
| * its operating division the Jet Propulsion Laboratory (JPL), the National | ||
| * Aeronautics and Space Administration (NASA), nor the names of its | ||
| * contributors may be used to endorse or promote products derived from this | ||
| * software without specific prior written permission. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| * ARE DISCLAIMED. IN NO EVENT SHALL THE CALIFORNIA INSTITUTE OF TECHNOLOGY BE | ||
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | ||
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
| * POSSIBILITY OF SUCH DAMAGE. | ||
| * | ||
| * Copyright 2014-2021 Esri | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| * Functions used by the driver, should have prototypes in the header file | ||
| * | ||
| * Author: Lucian Plesea | ||
| */ | ||
|
|
||
| #include "mrfdrivercore.h" | ||
| #include "cpl_string.h" | ||
|
|
||
| #if defined(LERC) | ||
| static bool IsLerc1(const char *s) | ||
| { | ||
| static const char L1sig[] = "CntZImage "; | ||
| return !strncmp(s, L1sig, sizeof(L1sig) - 1); | ||
| } | ||
| static bool IsLerc2(const char *s) | ||
| { | ||
| static const char L2sig[] = "Lerc2 "; | ||
| return !strncmp(s, L2sig, sizeof(L2sig) - 1); | ||
| } | ||
| #endif | ||
|
|
||
| /************************************************************************/ | ||
| /* MRFDriverIdentify() */ | ||
| /************************************************************************/ | ||
|
|
||
| /** | ||
| *\brief Idenfity a MRF file, lightweight | ||
| * | ||
| * Lightweight test, otherwise Open gets called. | ||
| * | ||
| */ | ||
| int MRFDriverIdentify(GDALOpenInfo *poOpenInfo) | ||
|
|
||
| { | ||
| if (STARTS_WITH(poOpenInfo->pszFilename, "<MRF_META>")) | ||
| return TRUE; | ||
|
|
||
| CPLString fn(poOpenInfo->pszFilename); | ||
| if (fn.find(":MRF:") != std::string::npos) | ||
| return TRUE; | ||
|
|
||
| if (poOpenInfo->nHeaderBytes < 10) | ||
| return FALSE; | ||
|
|
||
| const char *pszHeader = reinterpret_cast<char *>(poOpenInfo->pabyHeader); | ||
| fn.assign(pszHeader, pszHeader + poOpenInfo->nHeaderBytes); | ||
| if (STARTS_WITH(fn, "<MRF_META>")) | ||
| return TRUE; | ||
|
|
||
| #if defined(LERC) // Could be single LERC tile | ||
| if (IsLerc1(fn) || IsLerc2(fn)) | ||
| return TRUE; | ||
| #endif | ||
|
|
||
| return FALSE; | ||
| } | ||
|
|
||
| /************************************************************************/ | ||
| /* MRFDriverSetCommonMetadata() */ | ||
| /************************************************************************/ | ||
|
|
||
| void MRFDriverSetCommonMetadata(GDALDriver *poDriver) | ||
| { | ||
| poDriver->SetDescription(DRIVER_NAME); | ||
| poDriver->SetMetadataItem(GDAL_DMD_LONGNAME, "Meta Raster Format"); | ||
| poDriver->SetMetadataItem(GDAL_DMD_HELPTOPIC, "drivers/raster/marfa.html"); | ||
| poDriver->SetMetadataItem(GDAL_DMD_EXTENSION, "mrf"); | ||
| poDriver->SetMetadataItem(GDAL_DCAP_VIRTUALIO, "YES"); | ||
| poDriver->SetMetadataItem(GDAL_DCAP_RASTER, "YES"); | ||
|
|
||
| poDriver->SetMetadataItem( | ||
| GDAL_DMD_OPENOPTIONLIST, | ||
| "<OpenOptionList>" | ||
| " <Option name='NOERRORS' type='boolean' description='Ignore " | ||
| "decompression errors' default='FALSE'/>" | ||
| " <Option name='ZSLICE' type='int' description='For a third " | ||
| "dimension MRF, pick a slice' default='0'/>" | ||
| "</OpenOptionList>"); | ||
|
|
||
| // These will need to be revisited, do we support complex data types too? | ||
| poDriver->SetMetadataItem(GDAL_DMD_CREATIONDATATYPES, | ||
| "Byte UInt16 Int16 Int32 UInt32 Float32 Float64"); | ||
|
|
||
| poDriver->pfnIdentify = MRFDriverIdentify; | ||
| poDriver->SetMetadataItem(GDAL_DCAP_OPEN, "YES"); | ||
| poDriver->SetMetadataItem(GDAL_DCAP_CREATE, "YES"); | ||
| poDriver->SetMetadataItem(GDAL_DCAP_CREATECOPY, "YES"); | ||
| } | ||
|
|
||
| /************************************************************************/ | ||
| /* DeclareDeferredMRFPlugin() */ | ||
| /************************************************************************/ | ||
|
|
||
| #ifdef PLUGIN_FILENAME | ||
| void DeclareDeferredMRFPlugin() | ||
| { | ||
| if (GDALGetDriverByName(DRIVER_NAME) != nullptr) | ||
| { | ||
| return; | ||
| } | ||
| auto poDriver = new GDALPluginDriverProxy(PLUGIN_FILENAME); | ||
| MRFDriverSetCommonMetadata(poDriver); | ||
| GetGDALDriverManager()->DeclareDeferredPluginDriver(poDriver); | ||
| } | ||
| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| /* | ||
| * Copyright (c) 2002-2012, California Institute of Technology. | ||
| * All rights reserved. Based on Government Sponsored Research under contracts | ||
| * NAS7-1407 and/or NAS7-03001. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions are met: | ||
| * 1. Redistributions of source code must retain the above copyright notice, | ||
| * this list of conditions and the following disclaimer. | ||
| * 2. Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in the | ||
| * documentation and/or other materials provided with the distribution. | ||
| * 3. Neither the name of the California Institute of Technology (Caltech), | ||
| * its operating division the Jet Propulsion Laboratory (JPL), the National | ||
| * Aeronautics and Space Administration (NASA), nor the names of its | ||
| * contributors may be used to endorse or promote products derived from this | ||
| * software without specific prior written permission. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| * ARE DISCLAIMED. IN NO EVENT SHALL THE CALIFORNIA INSTITUTE OF TECHNOLOGY BE | ||
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | ||
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
| * POSSIBILITY OF SUCH DAMAGE. | ||
| * | ||
| * Copyright 2014-2021 Esri | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| * Functions used by the driver, should have prototypes in the header file | ||
| * | ||
| * Author: Lucian Plesea | ||
| */ | ||
|
|
||
| #ifndef MRFDRIVERCORE_H | ||
| #define MRFDRIVERCORE_H | ||
|
|
||
| #include "gdal_priv.h" | ||
|
|
||
| constexpr const char *DRIVER_NAME = "MRF"; | ||
|
|
||
| int CPL_DLL MRFDriverIdentify(GDALOpenInfo *poOpenInfo); | ||
|
|
||
| void CPL_DLL MRFDriverSetCommonMetadata(GDALDriver *poDriver); | ||
|
|
||
| #endif |
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