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rmfdataset.cpp
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/******************************************************************************
*
* Project: Raster Matrix Format
* Purpose: Read/write raster files used in GIS "Integratsia"
* (also known as "Panorama" GIS).
* Author: Andrey Kiselev, [email protected]
*
******************************************************************************
* Copyright (c) 2005, Andrey Kiselev <[email protected]>
* Copyright (c) 2007-2012, Even Rouault <even dot rouault at spatialys.com>
* Copyright (c) 2023, NextGIS <[email protected]>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#include <algorithm>
#include <limits>
#include "cpl_string.h"
#include "gdal_frmts.h"
#include "ogr_spatialref.h"
#include "rmfdataset.h"
#include "cpl_safemaths.hpp"
constexpr int RMF_DEFAULT_BLOCKXSIZE = 256;
constexpr int RMF_DEFAULT_BLOCKYSIZE = 256;
static const char RMF_SigRSW[] = {'R', 'S', 'W', '\0'};
static const char RMF_SigRSW_BE[] = {'\0', 'W', 'S', 'R'};
static const char RMF_SigMTW[] = {'M', 'T', 'W', '\0'};
static const char RMF_UnitsEmpty[] = "";
static const char RMF_UnitsM[] = "m";
static const char RMF_UnitsCM[] = "cm";
static const char RMF_UnitsDM[] = "dm";
static const char RMF_UnitsMM[] = "mm";
constexpr double RMF_DEFAULT_SCALE = 10000.0;
constexpr double RMF_DEFAULT_RESOLUTION = 100.0;
constexpr const char *MD_VERSION_KEY = "VERSION";
constexpr const char *MD_NAME_KEY = "NAME";
constexpr const char *MD_SCALE_KEY = "SCALE";
constexpr const char *MD_FRAME_KEY = "FRAME";
constexpr const char *MD_MATH_BASE_MAP_TYPE_KEY = "MATH_BASE.Map type";
constexpr const char *MD_MATH_BASE_PROJECTION_KEY = "MATH_BASE.Projection";
constexpr int nMaxFramePointCount = 2048;
constexpr GInt32 nPolygonType =
2147385342; // 2147385342 magic number for polygon
/* -------------------------------------------------------------------- */
/* Note: Due to the fact that in the early versions of RMF */
/* format the field of the iEPSGCode was marked as a 'reserved', */
/* in the header on its place in many cases garbage values were written.*/
/* Most of them can be weeded out by the minimum EPSG code value. */
/* */
/* see: Surveying and Positioning Guidance Note Number 7, part 1 */
/* Using the EPSG Geodetic Parameter Dataset p. 22 */
/* http://www.epsg.org/Portals/0/373-07-1.pdf */
/* -------------------------------------------------------------------- */
constexpr GInt32 RMF_EPSG_MIN_CODE = 1024;
static char *RMFUnitTypeToStr(GUInt32 iElevationUnit)
{
switch (iElevationUnit)
{
case 0:
return CPLStrdup(RMF_UnitsM);
case 1:
return CPLStrdup(RMF_UnitsDM);
case 2:
return CPLStrdup(RMF_UnitsCM);
case 3:
return CPLStrdup(RMF_UnitsMM);
default:
return CPLStrdup(RMF_UnitsEmpty);
}
}
static GUInt32 RMFStrToUnitType(const char *pszUnit, int *pbSuccess = nullptr)
{
if (pbSuccess != nullptr)
{
*pbSuccess = TRUE;
}
if (EQUAL(pszUnit, RMF_UnitsM))
return 0;
else if (EQUAL(pszUnit, RMF_UnitsDM))
return 1;
else if (EQUAL(pszUnit, RMF_UnitsCM))
return 2;
else if (EQUAL(pszUnit, RMF_UnitsMM))
return 3;
else
{
// There is no 'invalid unit' in RMF format. So meter is default...
if (pbSuccess != nullptr)
{
*pbSuccess = FALSE;
}
return 0;
}
}
/************************************************************************/
/* ==================================================================== */
/* RMFRasterBand */
/* ==================================================================== */
/************************************************************************/
/************************************************************************/
/* RMFRasterBand() */
/************************************************************************/
RMFRasterBand::RMFRasterBand(RMFDataset *poDSIn, int nBandIn,
GDALDataType eType)
: nBytesPerPixel(poDSIn->sHeader.nBitDepth / 8),
nLastTileWidth(poDSIn->GetRasterXSize() % poDSIn->sHeader.nTileWidth),
nLastTileHeight(poDSIn->GetRasterYSize() % poDSIn->sHeader.nTileHeight),
nDataSize(GDALGetDataTypeSizeBytes(eType))
{
poDS = poDSIn;
nBand = nBandIn;
eDataType = eType;
nBlockXSize = poDSIn->sHeader.nTileWidth;
nBlockYSize = poDSIn->sHeader.nTileHeight;
nBlockSize = nBlockXSize * nBlockYSize;
nBlockBytes = nBlockSize * nDataSize;
#ifdef DEBUG
CPLDebug("RMF",
"Band %d: tile width is %d, tile height is %d, "
" last tile width %u, last tile height %u, "
"bytes per pixel is %d, data type size is %d",
nBand, nBlockXSize, nBlockYSize, nLastTileWidth, nLastTileHeight,
nBytesPerPixel, nDataSize);
#endif
}
/************************************************************************/
/* ~RMFRasterBand() */
/************************************************************************/
RMFRasterBand::~RMFRasterBand()
{
}
/************************************************************************/
/* IReadBlock() */
/************************************************************************/
CPLErr RMFRasterBand::IReadBlock(int nBlockXOff, int nBlockYOff, void *pImage)
{
RMFDataset *poGDS = reinterpret_cast<RMFDataset *>(poDS);
CPLAssert(poGDS != nullptr && nBlockXOff >= 0 && nBlockYOff >= 0 &&
pImage != nullptr);
memset(pImage, 0, nBlockBytes);
GUInt32 nRawXSize = nBlockXSize;
GUInt32 nRawYSize = nBlockYSize;
if (nLastTileWidth && (GUInt32)nBlockXOff == poGDS->nXTiles - 1)
nRawXSize = nLastTileWidth;
if (nLastTileHeight && (GUInt32)nBlockYOff == poGDS->nYTiles - 1)
nRawYSize = nLastTileHeight;
GUInt32 nRawBytes = nRawXSize * nRawYSize * poGDS->sHeader.nBitDepth / 8;
// Direct read optimization
if (poGDS->nBands == 1 && poGDS->sHeader.nBitDepth >= 8 &&
nRawXSize == static_cast<GUInt32>(nBlockXSize) &&
nRawYSize == static_cast<GUInt32>(nBlockYSize))
{
bool bNullTile = false;
if (CE_None != poGDS->ReadTile(nBlockXOff, nBlockYOff,
reinterpret_cast<GByte *>(pImage),
nRawBytes, nRawXSize, nRawYSize,
bNullTile))
{
CPLError(CE_Failure, CPLE_FileIO,
"Failed to read tile xOff %d yOff %d", nBlockXOff,
nBlockYOff);
return CE_Failure;
}
if (bNullTile)
{
const int nChunkSize =
std::max(1, GDALGetDataTypeSizeBytes(eDataType));
const GPtrDiff_t nWords =
static_cast<GPtrDiff_t>(nBlockXSize) * nBlockYSize;
GDALCopyWords64(&poGDS->sHeader.dfNoData, GDT_Float64, 0, pImage,
eDataType, nChunkSize, nWords);
}
return CE_None;
}
#ifdef DEBUG
CPLDebug("RMF", "IReadBlock nBand %d, RawSize [%d, %d], Bits %d", nBand,
nRawXSize, nRawYSize, (int)poGDS->sHeader.nBitDepth);
#endif // DEBUG
if (poGDS->pabyCurrentTile == nullptr ||
poGDS->nCurrentTileXOff != nBlockXOff ||
poGDS->nCurrentTileYOff != nBlockYOff ||
poGDS->nCurrentTileBytes != nRawBytes)
{
if (poGDS->pabyCurrentTile == nullptr)
{
GUInt32 nMaxTileBytes = poGDS->sHeader.nTileWidth *
poGDS->sHeader.nTileHeight *
poGDS->sHeader.nBitDepth / 8;
poGDS->pabyCurrentTile = reinterpret_cast<GByte *>(
VSIMalloc(std::max(1U, nMaxTileBytes)));
if (!poGDS->pabyCurrentTile)
{
CPLError(CE_Failure, CPLE_OutOfMemory,
"Can't allocate tile block of size %lu.\n%s",
static_cast<unsigned long>(nMaxTileBytes),
VSIStrerror(errno));
poGDS->nCurrentTileBytes = 0;
return CE_Failure;
}
}
poGDS->nCurrentTileXOff = nBlockXOff;
poGDS->nCurrentTileYOff = nBlockYOff;
poGDS->nCurrentTileBytes = nRawBytes;
if (CE_None != poGDS->ReadTile(nBlockXOff, nBlockYOff,
poGDS->pabyCurrentTile, nRawBytes,
nRawXSize, nRawYSize,
poGDS->bCurrentTileIsNull))
{
CPLError(CE_Failure, CPLE_FileIO,
"Failed to read tile xOff %d yOff %d", nBlockXOff,
nBlockYOff);
poGDS->nCurrentTileBytes = 0;
return CE_Failure;
}
}
/* -------------------------------------------------------------------- */
/* Deinterleave pixels from input buffer. */
/* -------------------------------------------------------------------- */
if (poGDS->bCurrentTileIsNull)
{
const int nChunkSize = std::max(1, GDALGetDataTypeSizeBytes(eDataType));
const GPtrDiff_t nWords =
static_cast<GPtrDiff_t>(nBlockXSize) * nBlockYSize;
GDALCopyWords64(&poGDS->sHeader.dfNoData, GDT_Float64, 0, pImage,
eDataType, nChunkSize, nWords);
return CE_None;
}
else if ((poGDS->eRMFType == RMFT_RSW &&
(poGDS->sHeader.nBitDepth == 8 ||
poGDS->sHeader.nBitDepth == 24 ||
poGDS->sHeader.nBitDepth == 32)) ||
(poGDS->eRMFType == RMFT_MTW))
{
size_t nTilePixelSize = poGDS->sHeader.nBitDepth / 8;
size_t nTileLineSize = nTilePixelSize * nRawXSize;
size_t nBlockLineSize = nDataSize * nBlockXSize;
int iDstBand = (poGDS->nBands - nBand);
for (GUInt32 iLine = 0; iLine != nRawYSize; ++iLine)
{
GByte *pabySrc;
GByte *pabyDst;
pabySrc = poGDS->pabyCurrentTile + iLine * nTileLineSize +
iDstBand * nDataSize;
pabyDst =
reinterpret_cast<GByte *>(pImage) + iLine * nBlockLineSize;
GDALCopyWords(pabySrc, eDataType, static_cast<int>(nTilePixelSize),
pabyDst, eDataType, static_cast<int>(nDataSize),
nRawXSize);
}
return CE_None;
}
else if (poGDS->eRMFType == RMFT_RSW && poGDS->sHeader.nBitDepth == 16 &&
poGDS->nBands == 3)
{
size_t nTilePixelBits = poGDS->sHeader.nBitDepth;
size_t nTileLineSize = nTilePixelBits * nRawXSize / 8;
size_t nBlockLineSize = nDataSize * nBlockXSize;
for (GUInt32 iLine = 0; iLine != nRawYSize; ++iLine)
{
GUInt16 *pabySrc;
GByte *pabyDst;
pabySrc = reinterpret_cast<GUInt16 *>(poGDS->pabyCurrentTile +
iLine * nTileLineSize);
pabyDst =
reinterpret_cast<GByte *>(pImage) + iLine * nBlockLineSize;
for (GUInt32 i = 0; i < nRawXSize; i++)
{
switch (nBand)
{
case 1:
pabyDst[i] =
static_cast<GByte>((pabySrc[i] & 0x7c00) >> 7);
break;
case 2:
pabyDst[i] =
static_cast<GByte>((pabySrc[i] & 0x03e0) >> 2);
break;
case 3:
pabyDst[i] =
static_cast<GByte>((pabySrc[i] & 0x1F) << 3);
break;
default:
break;
}
}
}
return CE_None;
}
else if (poGDS->eRMFType == RMFT_RSW && poGDS->nBands == 1 &&
poGDS->sHeader.nBitDepth == 4)
{
if (poGDS->nCurrentTileBytes != (nBlockSize + 1) / 2)
{
CPLError(CE_Failure, CPLE_AppDefined,
"Tile has %d bytes, %d were expected",
poGDS->nCurrentTileBytes, (nBlockSize + 1) / 2);
return CE_Failure;
}
size_t nTilePixelBits = poGDS->sHeader.nBitDepth;
size_t nTileLineSize = nTilePixelBits * nRawXSize / 8;
size_t nBlockLineSize = nDataSize * nBlockXSize;
for (GUInt32 iLine = 0; iLine != nRawYSize; ++iLine)
{
GByte *pabySrc;
GByte *pabyDst;
pabySrc = poGDS->pabyCurrentTile + iLine * nTileLineSize;
pabyDst =
reinterpret_cast<GByte *>(pImage) + iLine * nBlockLineSize;
for (GUInt32 i = 0; i < nRawXSize; ++i)
{
if (i & 0x01)
pabyDst[i] = (*pabySrc++ & 0xF0) >> 4;
else
pabyDst[i] = *pabySrc & 0x0F;
}
}
return CE_None;
}
else if (poGDS->eRMFType == RMFT_RSW && poGDS->nBands == 1 &&
poGDS->sHeader.nBitDepth == 1)
{
if (poGDS->nCurrentTileBytes != (nBlockSize + 7) / 8)
{
CPLError(CE_Failure, CPLE_AppDefined,
"Tile has %d bytes, %d were expected",
poGDS->nCurrentTileBytes, (nBlockSize + 7) / 8);
return CE_Failure;
}
size_t nTilePixelBits = poGDS->sHeader.nBitDepth;
size_t nTileLineSize = nTilePixelBits * nRawXSize / 8;
size_t nBlockLineSize = nDataSize * nBlockXSize;
for (GUInt32 iLine = 0; iLine != nRawYSize; ++iLine)
{
GByte *pabySrc;
GByte *pabyDst;
pabySrc = poGDS->pabyCurrentTile + iLine * nTileLineSize;
pabyDst =
reinterpret_cast<GByte *>(pImage) + iLine * nBlockLineSize;
for (GUInt32 i = 0; i < nRawXSize; ++i)
{
switch (i & 0x7)
{
case 0:
pabyDst[i] = (*pabySrc & 0x80) >> 7;
break;
case 1:
pabyDst[i] = (*pabySrc & 0x40) >> 6;
break;
case 2:
pabyDst[i] = (*pabySrc & 0x20) >> 5;
break;
case 3:
pabyDst[i] = (*pabySrc & 0x10) >> 4;
break;
case 4:
pabyDst[i] = (*pabySrc & 0x08) >> 3;
break;
case 5:
pabyDst[i] = (*pabySrc & 0x04) >> 2;
break;
case 6:
pabyDst[i] = (*pabySrc & 0x02) >> 1;
break;
case 7:
pabyDst[i] = *pabySrc++ & 0x01;
break;
default:
break;
}
}
}
return CE_None;
}
CPLError(CE_Failure, CPLE_AppDefined,
"Invalid block data type. BitDepth %d, nBands %d",
static_cast<int>(poGDS->sHeader.nBitDepth), poGDS->nBands);
return CE_Failure;
}
/************************************************************************/
/* IWriteBlock() */
/************************************************************************/
CPLErr RMFRasterBand::IWriteBlock(int nBlockXOff, int nBlockYOff, void *pImage)
{
CPLAssert(poDS != nullptr && nBlockXOff >= 0 && nBlockYOff >= 0 &&
pImage != nullptr);
RMFDataset *poGDS = reinterpret_cast<RMFDataset *>(poDS);
// First drop current tile read by IReadBlock
poGDS->nCurrentTileBytes = 0;
GUInt32 nRawXSize = nBlockXSize;
GUInt32 nRawYSize = nBlockYSize;
if (nLastTileWidth &&
static_cast<GUInt32>(nBlockXOff) == poGDS->nXTiles - 1)
nRawXSize = nLastTileWidth;
if (nLastTileHeight &&
static_cast<GUInt32>(nBlockYOff) == poGDS->nYTiles - 1)
nRawYSize = nLastTileHeight;
size_t nTilePixelSize = nDataSize * poGDS->nBands;
size_t nTileLineSize = nTilePixelSize * nRawXSize;
size_t nTileSize = nTileLineSize * nRawYSize;
size_t nBlockLineSize = nDataSize * nBlockXSize;
#ifdef DEBUG
CPLDebug(
"RMF",
"IWriteBlock BlockSize [%d, %d], RawSize [%d, %d], size %d, nBand %d",
nBlockXSize, nBlockYSize, nRawXSize, nRawYSize,
static_cast<int>(nTileSize), nBand);
#endif // DEBUG
if (poGDS->nBands == 1 && nRawXSize == static_cast<GUInt32>(nBlockXSize) &&
nRawYSize == static_cast<GUInt32>(nBlockYSize))
{ // Immediate write
return poGDS->WriteTile(
nBlockXOff, nBlockYOff, reinterpret_cast<GByte *>(pImage),
nRawXSize * nRawYSize * nDataSize, nRawXSize, nRawYSize);
}
else
{ // Try to construct full tile in memory and write later
const GUInt32 nTile = nBlockYOff * poGDS->nXTiles + nBlockXOff;
// Find tile
auto poTile(poGDS->oUnfinishedTiles.find(nTile));
if (poTile == poGDS->oUnfinishedTiles.end())
{
RMFTileData oTile;
oTile.oData.resize(nTileSize);
// If not found, but exist on disk than read it
if (poGDS->paiTiles[2 * nTile + 1])
{
CPLErr eRes;
bool bNullTile = false;
eRes =
poGDS->ReadTile(nBlockXOff, nBlockYOff, oTile.oData.data(),
nTileSize, nRawXSize, nRawYSize, bNullTile);
if (eRes != CE_None)
{
CPLError(CE_Failure, CPLE_FileIO,
"Can't read block with offset [%d, %d]",
nBlockXOff, nBlockYOff);
return eRes;
}
}
poTile = poGDS->oUnfinishedTiles.insert(
poGDS->oUnfinishedTiles.end(), std::make_pair(nTile, oTile));
}
GByte *pabyTileData = poTile->second.oData.data();
// Copy new data to a tile
int iDstBand = (poGDS->nBands - nBand);
for (GUInt32 iLine = 0; iLine != nRawYSize; ++iLine)
{
const GByte *pabySrc;
GByte *pabyDst;
pabySrc = reinterpret_cast<const GByte *>(pImage) +
iLine * nBlockLineSize;
pabyDst =
pabyTileData + iLine * nTileLineSize + iDstBand * nDataSize;
GDALCopyWords(pabySrc, eDataType, static_cast<int>(nDataSize),
pabyDst, eDataType, static_cast<int>(nTilePixelSize),
nRawXSize);
}
++poTile->second.nBandsWritten;
// Write to disk if tile is finished
if (poTile->second.nBandsWritten == poGDS->nBands)
{
poGDS->WriteTile(nBlockXOff, nBlockYOff, pabyTileData, nTileSize,
nRawXSize, nRawYSize);
poGDS->oUnfinishedTiles.erase(poTile);
}
#ifdef DEBUG
CPLDebug("RMF", "poGDS->oUnfinishedTiles.size() %d",
static_cast<int>(poGDS->oUnfinishedTiles.size()));
#endif // DEBUG
}
return CE_None;
}
/************************************************************************/
/* GetNoDataValue() */
/************************************************************************/
double RMFRasterBand::GetNoDataValue(int *pbSuccess)
{
RMFDataset *poGDS = reinterpret_cast<RMFDataset *>(poDS);
if (pbSuccess)
*pbSuccess = TRUE;
return poGDS->sHeader.dfNoData;
}
CPLErr RMFRasterBand::SetNoDataValue(double dfNoData)
{
RMFDataset *poGDS = reinterpret_cast<RMFDataset *>(poDS);
poGDS->sHeader.dfNoData = dfNoData;
poGDS->bHeaderDirty = true;
return CE_None;
}
/************************************************************************/
/* GetUnitType() */
/************************************************************************/
const char *RMFRasterBand::GetUnitType()
{
RMFDataset *poGDS = reinterpret_cast<RMFDataset *>(poDS);
return (const char *)poGDS->pszUnitType;
}
/************************************************************************/
/* SetUnitType() */
/************************************************************************/
CPLErr RMFRasterBand::SetUnitType(const char *pszNewValue)
{
RMFDataset *poGDS = reinterpret_cast<RMFDataset *>(poDS);
int bSuccess = FALSE;
int iNewUnit = RMFStrToUnitType(pszNewValue, &bSuccess);
if (bSuccess)
{
CPLFree(poGDS->pszUnitType);
poGDS->pszUnitType = CPLStrdup(pszNewValue);
poGDS->sHeader.iElevationUnit = iNewUnit;
poGDS->bHeaderDirty = true;
return CE_None;
}
else
{
CPLError(CE_Warning, CPLE_NotSupported,
"RMF driver does not support '%s' elevation units. "
"Possible values are: m, dm, cm, mm.",
pszNewValue);
return CE_Failure;
}
}
/************************************************************************/
/* GetColorTable() */
/************************************************************************/
GDALColorTable *RMFRasterBand::GetColorTable()
{
RMFDataset *poGDS = reinterpret_cast<RMFDataset *>(poDS);
return poGDS->poColorTable;
}
/************************************************************************/
/* SetColorTable() */
/************************************************************************/
CPLErr RMFRasterBand::SetColorTable(GDALColorTable *poColorTable)
{
RMFDataset *poGDS = reinterpret_cast<RMFDataset *>(poDS);
if (poColorTable)
{
if (poGDS->eRMFType == RMFT_RSW && poGDS->nBands == 1)
{
if (!poGDS->pabyColorTable)
return CE_Failure;
GDALColorEntry oEntry;
for (GUInt32 i = 0; i < poGDS->nColorTableSize; i++)
{
poColorTable->GetColorEntryAsRGB(i, &oEntry);
poGDS->pabyColorTable[i * 4] = (GByte)oEntry.c1; // Red
poGDS->pabyColorTable[i * 4 + 1] = (GByte)oEntry.c2; // Green
poGDS->pabyColorTable[i * 4 + 2] = (GByte)oEntry.c3; // Blue
poGDS->pabyColorTable[i * 4 + 3] = 0;
}
poGDS->bHeaderDirty = true;
}
return CE_None;
}
return CE_Failure;
}
int RMFRasterBand::GetOverviewCount()
{
RMFDataset *poGDS = reinterpret_cast<RMFDataset *>(poDS);
if (poGDS->poOvrDatasets.empty())
return GDALRasterBand::GetOverviewCount();
else
return static_cast<int>(poGDS->poOvrDatasets.size());
}
GDALRasterBand *RMFRasterBand::GetOverview(int i)
{
RMFDataset *poGDS = reinterpret_cast<RMFDataset *>(poDS);
size_t n = static_cast<size_t>(i);
if (poGDS->poOvrDatasets.empty())
return GDALRasterBand::GetOverview(i);
else
return poGDS->poOvrDatasets[n]->GetRasterBand(nBand);
}
CPLErr RMFRasterBand::IRasterIO(GDALRWFlag eRWFlag, int nXOff, int nYOff,
int nXSize, int nYSize, void *pData,
int nBufXSize, int nBufYSize,
GDALDataType eType, GSpacing nPixelSpace,
GSpacing nLineSpace,
GDALRasterIOExtraArg *psExtraArg)
{
RMFDataset *poGDS = reinterpret_cast<RMFDataset *>(poDS);
if (eRWFlag == GF_Read && poGDS->poCompressData != nullptr &&
poGDS->poCompressData->oThreadPool.GetThreadCount() > 0)
{
poGDS->poCompressData->oThreadPool.WaitCompletion();
}
return GDALRasterBand::IRasterIO(eRWFlag, nXOff, nYOff, nXSize, nYSize,
pData, nBufXSize, nBufYSize, eType,
nPixelSpace, nLineSpace, psExtraArg);
}
/************************************************************************/
/* GetColorInterpretation() */
/************************************************************************/
GDALColorInterp RMFRasterBand::GetColorInterpretation()
{
RMFDataset *poGDS = reinterpret_cast<RMFDataset *>(poDS);
if (poGDS->nBands == 3)
{
if (nBand == 1)
return GCI_RedBand;
else if (nBand == 2)
return GCI_GreenBand;
else if (nBand == 3)
return GCI_BlueBand;
return GCI_Undefined;
}
if (poGDS->eRMFType == RMFT_RSW)
return GCI_PaletteIndex;
return GCI_Undefined;
}
/************************************************************************/
/* ==================================================================== */
/* RMFDataset */
/* ==================================================================== */
/************************************************************************/
/************************************************************************/
/* RMFDataset() */
/************************************************************************/
RMFDataset::RMFDataset()
: eRMFType(RMFT_RSW), nXTiles(0), nYTiles(0), paiTiles(nullptr),
pabyDecompressBuffer(nullptr), pabyCurrentTile(nullptr),
bCurrentTileIsNull(false), nCurrentTileXOff(-1), nCurrentTileYOff(-1),
nCurrentTileBytes(0), nColorTableSize(0), pabyColorTable(nullptr),
poColorTable(nullptr), pszUnitType(CPLStrdup(RMF_UnitsEmpty)),
bBigEndian(false), bHeaderDirty(false), fp(nullptr), Decompress(nullptr),
Compress(nullptr), nHeaderOffset(0), poParentDS(nullptr)
{
m_oSRS.SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER);
nBands = 0;
adfGeoTransform[0] = 0.0;
adfGeoTransform[1] = 1.0;
adfGeoTransform[2] = 0.0;
adfGeoTransform[3] = 0.0;
adfGeoTransform[4] = 0.0;
adfGeoTransform[5] = 1.0;
memset(&sHeader, 0, sizeof(sHeader));
memset(&sExtHeader, 0, sizeof(sExtHeader));
}
/************************************************************************/
/* ~RMFDataset() */
/************************************************************************/
RMFDataset::~RMFDataset()
{
RMFDataset::FlushCache(true);
for (size_t n = 0; n != poOvrDatasets.size(); ++n)
{
poOvrDatasets[n]->RMFDataset::FlushCache(true);
}
VSIFree(paiTiles);
VSIFree(pabyDecompressBuffer);
VSIFree(pabyCurrentTile);
CPLFree(pszUnitType);
CPLFree(pabyColorTable);
if (poColorTable != nullptr)
delete poColorTable;
for (size_t n = 0; n != poOvrDatasets.size(); ++n)
{
GDALClose(poOvrDatasets[n]);
}
if (fp != nullptr && poParentDS == nullptr)
{
VSIFCloseL(fp);
}
}
/************************************************************************/
/* GetGeoTransform() */
/************************************************************************/
CPLErr RMFDataset::GetGeoTransform(double *padfTransform)
{
memcpy(padfTransform, adfGeoTransform, sizeof(adfGeoTransform[0]) * 6);
if (sHeader.iGeorefFlag)
return CE_None;
return CE_Failure;
}
/************************************************************************/
/* SetGeoTransform() */
/************************************************************************/
CPLErr RMFDataset::SetGeoTransform(double *padfTransform)
{
memcpy(adfGeoTransform, padfTransform, sizeof(double) * 6);
sHeader.dfPixelSize = adfGeoTransform[1];
if (sHeader.dfPixelSize != 0.0)
sHeader.dfResolution = sHeader.dfScale / sHeader.dfPixelSize;
sHeader.dfLLX = adfGeoTransform[0];
sHeader.dfLLY = adfGeoTransform[3] - nRasterYSize * sHeader.dfPixelSize;
sHeader.iGeorefFlag = 1;
bHeaderDirty = true;
return CE_None;
}
/************************************************************************/
/* GetSpatialRef() */
/************************************************************************/
const OGRSpatialReference *RMFDataset::GetSpatialRef() const
{
return m_oSRS.IsEmpty() ? nullptr : &m_oSRS;
}
/************************************************************************/
/* SetSpatialRef() */
/************************************************************************/
CPLErr RMFDataset::SetSpatialRef(const OGRSpatialReference *poSRS)
{
m_oSRS.Clear();
if (poSRS)
m_oSRS = *poSRS;
bHeaderDirty = true;
return CE_None;
}
/************************************************************************/
/* WriteHeader() */
/************************************************************************/
CPLErr RMFDataset::WriteHeader()
{
/* -------------------------------------------------------------------- */
/* Setup projection. */
/* -------------------------------------------------------------------- */
if (!m_oSRS.IsEmpty())
{
long iProjection = 0;
long iDatum = 0;
long iEllips = 0;
long iZone = 0;
int iVertCS = 0;
double adfPrjParams[7] = {};
m_oSRS.exportToPanorama(&iProjection, &iDatum, &iEllips, &iZone,
adfPrjParams);
m_oSRS.exportVertCSToPanorama(&iVertCS);
sHeader.iProjection = static_cast<GInt32>(iProjection);
sHeader.dfStdP1 = adfPrjParams[0];
sHeader.dfStdP2 = adfPrjParams[1];
sHeader.dfCenterLat = adfPrjParams[2];
sHeader.dfCenterLong = adfPrjParams[3];
if (m_oSRS.GetAuthorityName(nullptr) != nullptr &&
m_oSRS.GetAuthorityCode(nullptr) != nullptr &&
EQUAL(m_oSRS.GetAuthorityName(nullptr), "EPSG"))
{
sHeader.iEPSGCode = atoi(m_oSRS.GetAuthorityCode(nullptr));
}
sExtHeader.nEllipsoid = static_cast<GInt32>(iEllips);
sExtHeader.nDatum = static_cast<GInt32>(iDatum);
sExtHeader.nZone = static_cast<GInt32>(iZone);
sExtHeader.nVertDatum = static_cast<GInt32>(iVertCS);
// Set map type
auto pszMapType = GetMetadataItem(MD_MATH_BASE_MAP_TYPE_KEY);
if (pszMapType != nullptr)
{
sHeader.iMapType = static_cast<GInt32>(atoi(pszMapType));
}
}
#define RMF_WRITE_LONG(ptr, value, offset) \
do \
{ \
GInt32 iLong = CPL_LSBWORD32(value); \
memcpy((ptr) + (offset), &iLong, 4); \
} while (false);
#define RMF_WRITE_ULONG(ptr, value, offset) \
do \
{ \
GUInt32 iULong = CPL_LSBWORD32(value); \
memcpy((ptr) + (offset), &iULong, 4); \
} while (false);
#define RMF_WRITE_DOUBLE(ptr, value, offset) \
do \
{ \
double dfDouble = (value); \
CPL_LSBPTR64(&dfDouble); \
memcpy((ptr) + (offset), &dfDouble, 8); \
} while (false);
// Frame if present
std::vector<RSWFrameCoord> astFrameCoords;
auto pszFrameWKT = GetMetadataItem(MD_FRAME_KEY);
if (pszFrameWKT != nullptr)
{
CPLDebug("RMF", "Write to header frame: %s", pszFrameWKT);
OGRGeometry *poFrameGeom = nullptr;
if (OGRGeometryFactory::createFromWkt(pszFrameWKT, nullptr,
&poFrameGeom) == OGRERR_NONE)
{
if (poFrameGeom->getGeometryType() == wkbPolygon)
{
double adfReverseGeoTransform[6] = {0};
if (GDALInvGeoTransform(adfGeoTransform,
adfReverseGeoTransform) == TRUE)
{
OGRPolygon *poFramePoly = poFrameGeom->toPolygon();
if (!poFramePoly->IsEmpty())
{
OGRLinearRing *poFrameRing =
poFramePoly->getExteriorRing();
for (int i = 0; i < poFrameRing->getNumPoints(); i++)
{
int nX = int(adfReverseGeoTransform[0] +
poFrameRing->getX(i) *
adfReverseGeoTransform[1] -
0.5);
int nY = int(adfReverseGeoTransform[3] +
poFrameRing->getY(i) *
adfReverseGeoTransform[5] -
0.5);
CPLDebug("RMF", "X: %d, Y: %d", nX, nY);
astFrameCoords.push_back({nX, nY});
}
}
if (astFrameCoords.empty() ||
astFrameCoords.size() > nMaxFramePointCount)
{
// CPLError(CE_Warning, CPLE_AppDefined, "Invalid frame WKT: %s", pszFrameWKT);
CPLDebug("RMF", "Write to header frame failed: no "
"points or too many");
astFrameCoords.clear();
}
else
{
sHeader.nROISize = static_cast<GUInt32>(
sizeof(RSWFrame) +
sizeof(RSWFrameCoord) *
astFrameCoords
.size()); // Set real size and real point count
sHeader.iFrameFlag = 0;
}
}
else
{
CPLDebug("RMF", "Write to header frame failed: "
"GDALInvGeoTransform == FALSE");
}
}
OGRGeometryFactory::destroyGeometry(poFrameGeom);
}
else
{
CPLDebug("RMF", "Write to header frame failed: "
"OGRGeometryFactory::createFromWkt error");
}
}
vsi_l_offset iCurrentFileSize(GetLastOffset());
sHeader.nFileSize0 = GetRMFOffset(iCurrentFileSize, &iCurrentFileSize);
sHeader.nSize = sHeader.nFileSize0 - GetRMFOffset(nHeaderOffset, nullptr);
/* -------------------------------------------------------------------- */
/* Write out the main header. */
/* -------------------------------------------------------------------- */
{
GByte abyHeader[RMF_HEADER_SIZE] = {};
memcpy(abyHeader, sHeader.bySignature, RMF_SIGNATURE_SIZE);
RMF_WRITE_ULONG(abyHeader, sHeader.iVersion, 4);
RMF_WRITE_ULONG(abyHeader, sHeader.nSize, 8);
RMF_WRITE_ULONG(abyHeader, sHeader.nOvrOffset, 12);
RMF_WRITE_ULONG(abyHeader, sHeader.iUserID, 16);
memcpy(abyHeader + 20, sHeader.byName, RMF_NAME_SIZE);
RMF_WRITE_ULONG(abyHeader, sHeader.nBitDepth, 52);
RMF_WRITE_ULONG(abyHeader, sHeader.nHeight, 56);
RMF_WRITE_ULONG(abyHeader, sHeader.nWidth, 60);
RMF_WRITE_ULONG(abyHeader, sHeader.nXTiles, 64);
RMF_WRITE_ULONG(abyHeader, sHeader.nYTiles, 68);
RMF_WRITE_ULONG(abyHeader, sHeader.nTileHeight, 72);