chore: initial commit (extracted from Launchers monorepo)

Plugin: ns7zip v2.0.0 Architectures: x86-ansi, x86-unicode, amd64-unicode License: LGPL-2.1-or-later
2026-04-29 14:07:51 +02:00
commit d074cc7c07
3848 changed files with 1076682 additions and 0 deletions
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+// ByteSwap.cpp
+
+#include "StdAfx.h"
+
+#include "../../../C/SwapBytes.h"
+
+#include "../../Common/MyCom.h"
+
+#include "../ICoder.h"
+
+#include "../Common/RegisterCodec.h"
+
+namespace NCompress {
+namespace NByteSwap {
+
+Z7_CLASS_IMP_COM_1(CByteSwap2, ICompressFilter) };
+Z7_CLASS_IMP_COM_1(CByteSwap4, ICompressFilter) };
+
+Z7_COM7F_IMF(CByteSwap2::Init()) { return S_OK; }
+
+Z7_COM7F_IMF2(UInt32, CByteSwap2::Filter(Byte *data, UInt32 size))
+{
+  const UInt32 kMask = 2 - 1;
+  size &= ~kMask;
+  /*
+  if ((unsigned)(ptrdiff_t)data & kMask)
+  {
+    if (size == 0)
+      return 0;
+    const Byte *end = data + (size_t)size;
+    do
+    {
+      const Byte b0 = data[0];
+      data[0] = data[1];
+      data[1] = b0;
+      data += kStep;
+    }
+    while (data != end);
+  }
+  else
+  */
+  z7_SwapBytes2((UInt16 *)(void *)data, size >> 1);
+  return size;
+}
+
+
+Z7_COM7F_IMF(CByteSwap4::Init()) { return S_OK; }
+
+Z7_COM7F_IMF2(UInt32, CByteSwap4::Filter(Byte *data, UInt32 size))
+{
+  const UInt32 kMask = 4 - 1;
+  size &= ~kMask;
+  /*
+  if ((unsigned)(ptrdiff_t)data & kMask)
+  {
+    if (size == 0)
+      return 0;
+    const Byte *end = data + (size_t)size;
+    do
+    {
+      const Byte b0 = data[0];
+      const Byte b1 = data[1];
+      data[0] = data[3];
+      data[1] = data[2];
+      data[2] = b1;
+      data[3] = b0;
+      data += kStep;
+    }
+    while (data != end);
+  }
+  else
+  */
+  z7_SwapBytes4((UInt32 *)(void *)data, size >> 2);
+  return size;
+}
+
+static struct C_SwapBytesPrepare { C_SwapBytesPrepare() { z7_SwapBytesPrepare(); } } g_SwapBytesPrepare;
+
+
+REGISTER_FILTER_CREATE(CreateFilter2, CByteSwap2())
+REGISTER_FILTER_CREATE(CreateFilter4, CByteSwap4())
+
+REGISTER_CODECS_VAR
+{
+  REGISTER_FILTER_ITEM(CreateFilter2, CreateFilter2, 0x20302, "Swap2"),
+  REGISTER_FILTER_ITEM(CreateFilter4, CreateFilter4, 0x20304, "Swap4"),
+};
+
+REGISTER_CODECS(ByteSwap)
+
+}}