File: gdalalg_raster_set_type.cpp

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gdal 3.12.1%2Bdfsg-1
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/******************************************************************************
 *
 * Project:  GDAL
 * Purpose:  "set-type" step of "raster pipeline"
 * Author:   Even Rouault <even dot rouault at spatialys.com>
 *
 ******************************************************************************
 * Copyright (c) 2025, Even Rouault <even dot rouault at spatialys.com>
 *
 * SPDX-License-Identifier: MIT
 ****************************************************************************/

#include "gdalalg_raster_set_type.h"

#include "gdal_priv.h"
#include "gdal_utils.h"

//! @cond Doxygen_Suppress

#ifndef _
#define _(x) (x)
#endif

/************************************************************************/
/*       GDALRasterSetTypeAlgorithm::GDALRasterSetTypeAlgorithm()       */
/************************************************************************/

GDALRasterSetTypeAlgorithm::GDALRasterSetTypeAlgorithm(bool standaloneStep)
    : GDALRasterPipelineStepAlgorithm(NAME, DESCRIPTION, HELP_URL,
                                      standaloneStep)
{
    AddOutputDataTypeArg(&m_type).SetRequired();
}

/************************************************************************/
/*             GDALRasterSetTypeAlgorithm::RunStep()                    */
/************************************************************************/

bool GDALRasterSetTypeAlgorithm::RunStep(GDALPipelineStepRunContext &)
{
    const auto poSrcDS = m_inputDataset[0].GetDatasetRef();
    CPLAssert(poSrcDS);
    CPLAssert(m_outputDataset.GetName().empty());
    CPLAssert(!m_outputDataset.GetDatasetRef());

    CPLStringList aosOptions;
    aosOptions.AddString("-of");
    aosOptions.AddString("VRT");
    aosOptions.AddString("-ot");
    aosOptions.AddString(m_type.c_str());

    GDALTranslateOptions *psOptions =
        GDALTranslateOptionsNew(aosOptions.List(), nullptr);

    auto poOutDS = std::unique_ptr<GDALDataset>(GDALDataset::FromHandle(
        GDALTranslate("", GDALDataset::ToHandle(poSrcDS), psOptions, nullptr)));
    GDALTranslateOptionsFree(psOptions);
    const bool bRet = poOutDS != nullptr;
    if (poOutDS)
    {
        m_outputDataset.Set(std::move(poOutDS));
    }

    return bRet;
}

GDALRasterSetTypeAlgorithmStandalone::~GDALRasterSetTypeAlgorithmStandalone() =
    default;

//! @endcond