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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+// CrcReg.cpp
+
+#include "StdAfx.h"
+
+#include "../../C/7zCrc.h"
+#include "../../C/CpuArch.h"
+
+#include "../Common/MyCom.h"
+
+#include "../7zip/Common/RegisterCodec.h"
+
+EXTERN_C_BEGIN
+
+EXTERN_C_END
+
+Z7_CLASS_IMP_COM_2(
+  CCrcHasher
+  , IHasher
+  , ICompressSetCoderProperties
+)
+  UInt32 _crc;
+  Z7_CRC_UPDATE_FUNC _updateFunc;
+
+  Z7_CLASS_NO_COPY(CCrcHasher)
+
+  bool SetFunctions(UInt32 tSize);
+public:
+  Byte _mtDummy[1 << 7];  // it's public to eliminate clang warning: unused private field
+
+  CCrcHasher(): _crc(CRC_INIT_VAL) { SetFunctions(0); }
+};
+
+bool CCrcHasher::SetFunctions(UInt32 tSize)
+{
+  const Z7_CRC_UPDATE_FUNC f = z7_GetFunc_CrcUpdate(tSize);
+  if (!f)
+  {
+    _updateFunc = CrcUpdate;
+    return false;
+  }
+  _updateFunc = f;
+  return true;
+}
+
+Z7_COM7F_IMF(CCrcHasher::SetCoderProperties(const PROPID *propIDs, const PROPVARIANT *coderProps, UInt32 numProps))
+{
+  for (UInt32 i = 0; i < numProps; i++)
+  {
+    if (propIDs[i] == NCoderPropID::kDefaultProp)
+    {
+      const PROPVARIANT &prop = coderProps[i];
+      if (prop.vt != VT_UI4)
+        return E_INVALIDARG;
+      if (!SetFunctions(prop.ulVal))
+        return E_NOTIMPL;
+    }
+  }
+  return S_OK;
+}
+
+Z7_COM7F_IMF2(void, CCrcHasher::Init())
+{
+  _crc = CRC_INIT_VAL;
+}
+
+Z7_COM7F_IMF2(void, CCrcHasher::Update(const void *data, UInt32 size))
+{
+  _crc = _updateFunc(_crc, data, size);
+}
+
+Z7_COM7F_IMF2(void, CCrcHasher::Final(Byte *digest))
+{
+  const UInt32 val = CRC_GET_DIGEST(_crc);
+  SetUi32(digest, val)
+}
+
+REGISTER_HASHER(CCrcHasher, 0x1, "CRC32", 4)