From 940b4d1848e8c70ab7642901a68594e8016caffc Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 27 Apr 2024 18:51:28 +0200
Subject: Adding upstream version 1:7.0.4.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 sdext/source/pdfimport/tree/imagecontainer.cxx | 146 +++++++++++++++++++++++++
 1 file changed, 146 insertions(+)
 create mode 100644 sdext/source/pdfimport/tree/imagecontainer.cxx

(limited to 'sdext/source/pdfimport/tree/imagecontainer.cxx')

diff --git a/sdext/source/pdfimport/tree/imagecontainer.cxx b/sdext/source/pdfimport/tree/imagecontainer.cxx
new file mode 100644
index 000000000..2be33dced
--- /dev/null
+++ b/sdext/source/pdfimport/tree/imagecontainer.cxx
@@ -0,0 +1,146 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you 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 .
+ */
+
+
+#include <imagecontainer.hxx>
+#include <genericelements.hxx>
+#include <xmlemitter.hxx>
+
+#include <rtl/ustrbuf.hxx>
+#include <sal/log.hxx>
+#include <osl/diagnose.h>
+
+#include <com/sun/star/beans/PropertyValue.hpp>
+
+using namespace com::sun::star;
+
+namespace pdfi
+{
+
+namespace
+{
+
+static const char aBase64EncodeTable[] =
+    { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
+      'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
+      'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
+      'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
+      '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/' };
+
+OUString encodeBase64( const sal_Int8* i_pBuffer, const sal_uInt32 i_nBufferLength )
+{
+    OUStringBuffer aBuf( (i_nBufferLength+1) * 4 / 3 );
+    const sal_Int32 nRemain(i_nBufferLength%3);
+    const sal_Int32 nFullTripleLength( i_nBufferLength - (i_nBufferLength%3));
+    sal_Int32 nBufPos( 0 );
+    for( sal_Int32 i = 0; i < nFullTripleLength; i += 3, nBufPos += 4 )
+    {
+        const sal_Int32 nBinary = (static_cast<sal_uInt8>(i_pBuffer[i + 0]) << 16) +
+                                  (static_cast<sal_uInt8>(i_pBuffer[i + 1]) <<  8) +
+                                  static_cast<sal_uInt8>(i_pBuffer[i + 2]);
+
+        aBuf.append("====");
+
+        sal_uInt8 nIndex (static_cast<sal_uInt8>((nBinary & 0xFC0000) >> 18));
+        aBuf[nBufPos] = aBase64EncodeTable [nIndex];
+
+        nIndex = static_cast<sal_uInt8>((nBinary & 0x3F000) >> 12);
+        aBuf[nBufPos+1] = aBase64EncodeTable [nIndex];
+
+        nIndex = static_cast<sal_uInt8>((nBinary & 0xFC0) >> 6);
+        aBuf[nBufPos+2] = aBase64EncodeTable [nIndex];
+
+        nIndex = static_cast<sal_uInt8>((nBinary & 0x3F));
+        aBuf[nBufPos+3] = aBase64EncodeTable [nIndex];
+    }
+    if( nRemain > 0 )
+    {
+        aBuf.append("====");
+        sal_Int32 nBinary( 0 );
+        const sal_Int32 nStart(i_nBufferLength-nRemain);
+        switch(nRemain)
+        {
+            case 1: nBinary = static_cast<sal_uInt8>(i_pBuffer[nStart + 0]) << 16;
+                break;
+            case 2: nBinary = (static_cast<sal_uInt8>(i_pBuffer[nStart + 0]) << 16) +
+                              (static_cast<sal_uInt8>(i_pBuffer[nStart + 1]) <<  8);
+                break;
+        }
+        sal_uInt8 nIndex (static_cast<sal_uInt8>((nBinary & 0xFC0000) >> 18));
+        aBuf[nBufPos] = aBase64EncodeTable [nIndex];
+
+        nIndex = static_cast<sal_uInt8>((nBinary & 0x3F000) >> 12);
+        aBuf[nBufPos+1] = aBase64EncodeTable [nIndex];
+
+        if( nRemain == 2 )
+        {
+            nIndex = static_cast<sal_uInt8>((nBinary & 0xFC0) >> 6);
+            aBuf[nBufPos+2] = aBase64EncodeTable [nIndex];
+        }
+    }
+
+    return aBuf.makeStringAndClear();
+}
+
+} // namespace
+
+ImageContainer::ImageContainer() :
+    m_aImages()
+{}
+
+ImageId ImageContainer::addImage( const uno::Sequence<beans::PropertyValue>& xBitmap )
+{
+    m_aImages.push_back( xBitmap );
+    return m_aImages.size()-1;
+}
+
+void ImageContainer::writeBase64EncodedStream( ImageId nId, EmitContext& rContext )
+{
+    OSL_ASSERT( nId >= 0 && nId < ImageId( m_aImages.size()) );
+
+    const uno::Sequence<beans::PropertyValue>& rEntry( m_aImages[nId] );
+
+    // find "InputSequence" property
+    const beans::PropertyValue* pAry(rEntry.getConstArray());
+    const sal_Int32             nLen(rEntry.getLength());
+    const beans::PropertyValue* pValue(
+        std::find_if(pAry, pAry+nLen,
+            [] (beans::PropertyValue const& v) -> bool {
+                return v.Name == "InputSequence";
+            }));
+
+    if (pValue == pAry + nLen )
+    {
+        SAL_WARN("sdext.pdfimport", "InputSequence not found");
+        return;
+    }
+
+    uno::Sequence<sal_Int8> aData;
+    if( !(pValue->Value >>= aData) )
+    {
+        SAL_WARN("sdext.pdfimport", "Wrong data type");
+        return;
+    }
+
+    rContext.rEmitter.write( encodeBase64( aData.getConstArray(), aData.getLength() ));
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
-- 
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