initial commit

2022-03-30 09:23:34 +02:00
parent 7ccea790ea
commit 2d7a073046
36 changed files with 11591 additions and 41 deletions
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+/* ============================================================
+ *
+ * This file is a part of digiKam project
+ * https://www.digikam.org
+ *
+ * Date        : 2009-05-29
+ * Description : static helper methods for PGF image format.
+ *
+ * Copyright (C) 2009-2021 by Gilles Caulier <caulier dot gilles at gmail dot com>
+ *
+ * This program is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU General
+ * Public License as published by the Free Software Foundation;
+ * either version 2, or (at your option)
+ * any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * ============================================================ */
+
+#include "pgfutils.h"
+
+// C Ansi includes
+
+extern "C"
+{
+#ifndef Q_CC_MSVC
+#   include <unistd.h>
+#endif
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+}
+
+// Qt includes
+
+#include <QDebug>
+#include <QImage>
+#include <QByteArray>
+#include <QFile>
+#include <qplatformdefs.h>
+
+// Windows includes
+
+#ifdef Q_OS_WIN
+#   include <windows.h>
+#endif
+
+// LibPGF includes
+
+#if defined(Q_CC_CLANG)
+#   pragma clang diagnostic push
+#   pragma clang diagnostic ignored "-Wkeyword-macro"
+#endif
+
+#include "PGFimage.h"
+
+#if defined(Q_CC_CLANG)
+#   pragma clang diagnostic pop
+#endif
+
+namespace Digikam
+{
+
+namespace PGFUtils
+{
+
+bool readPGFImageData(const QByteArray& data,
+                      QImage& img,
+                      bool verbose)
+{
+    try
+    {
+        if (data.isEmpty())
+        {
+            qWarning() << "PGFUtils: PGF image data to decode : size is null";
+
+            return false;
+        }
+
+        CPGFMemoryStream stream((UINT8*)data.data(), (size_t)data.size());
+
+        if (verbose)
+        {
+            qInfo() << "PGFUtils: image data stream size is : " << stream.GetSize();
+        }
+
+        CPGFImage pgfImg;
+
+        // NOTE: see bug #273765 : Loading PGF thumbs with OpenMP support through a separated thread do not work properly with libppgf 6.11.24
+
+        pgfImg.ConfigureDecoder(false);
+
+        pgfImg.Open(&stream);
+
+        if (verbose)
+        {
+            qInfo() << "PGFUtils: PGF image is open";
+        }
+
+        if (pgfImg.Channels() != 4)
+        {
+            qWarning() << "PGFUtils: PGF channels not supported";
+
+            return false;
+        }
+
+        img = QImage(pgfImg.Width(), pgfImg.Height(), QImage::Format_ARGB32);
+        pgfImg.Read();
+
+        if (verbose)
+        {
+            qInfo() << "PGFUtils: PGF image is read";
+        }
+
+        if (QSysInfo::ByteOrder == QSysInfo::BigEndian)
+        {
+            int map[] = {3, 2, 1, 0};
+            pgfImg.GetBitmap(img.bytesPerLine(), (UINT8*)img.bits(), img.depth(), map);
+        }
+        else
+        {
+            int map[] = {0, 1, 2, 3};
+            pgfImg.GetBitmap(img.bytesPerLine(), (UINT8*)img.bits(), img.depth(), map);
+        }
+
+        if (verbose)
+        {
+            qInfo() << "PGFUtils: PGF image is decoded";
+        }
+    }
+    catch (IOException& e)
+    {
+        int err = e.error;
+
+        if (err >= AppError)
+        {
+            err -= AppError;
+        }
+
+        qWarning() << "PGFUtils: Error running libpgf (" << err << ")!";
+
+        return false;
+    }
+
+    return true;
+}
+
+} // namespace PGFUtils
+
+} // namespace Digikam