openDecal/Native/DecalDat/DatStream.cpp
erik d1442e3747 Initial commit: Complete open-source Decal rebuild
All 5 phases of the open-source Decal rebuild:

Phase 1: 14 decompiled .NET projects (Interop.*, Adapter, FileService, DecalUtil)
Phase 2: 10 native DLLs rewritten as C# COM servers with matching GUIDs
  - DecalDat, DHS, SpellFilter, DecalInput, DecalNet, DecalFilters
  - Decal.Core, DecalControls, DecalRender, D3DService
Phase 3: C++ shims for Inject.DLL (D3D9 hooking) and LauncherHook.DLL
Phase 4: DenAgent WinForms tray application
Phase 5: WiX installer and build script

25 C# projects building with 0 errors.
Native C++ projects require VS 2022 + Windows SDK (x86).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-08 18:27:56 +01:00

95 lines
1.6 KiB
C++

// DatStream.cpp : Implementation of cDatStream
#include "stdafx.h"
#include "DecalDat.h"
#include "DatStream.h"
/////////////////////////////////////////////////////////////////////////////
// cDatStream
STDMETHODIMP cDatStream::get_Size(long *pVal)
{
if( pVal == NULL )
{
_ASSERT( FALSE );
return E_POINTER;
}
*pVal = static_cast< long >( m_pFile->getSize() );
return S_OK;
}
STDMETHODIMP cDatStream::get_Tell(long *pVal)
{
if( pVal == NULL )
{
_ASSERT( FALSE );
return E_POINTER;
}
*pVal = static_cast< long >( m_pFile->tell() );
return S_OK;
}
STDMETHODIMP cDatStream::Skip(long Bytes)
{
if( Bytes < 0 )
{
_ASSERT( FALSE );
return E_INVALIDARG;
}
m_pFile->skip( static_cast< DWORD >( Bytes ) );
return S_OK;
}
STDMETHODIMP cDatStream::Restart()
{
m_pFile->reset();
return S_OK;
}
STDMETHODIMP cDatStream::ReadBinary(long Bytes, BYTE *Buffer)
{
if( Bytes < 0 )
{
_ASSERT( FALSE );
return E_INVALIDARG;
}
if( Buffer == NULL )
{
_ASSERT( FALSE );
return E_POINTER;
}
m_pFile->read( Buffer, static_cast< DWORD >( Bytes ) );
return S_OK;
}
STDMETHODIMP cDatStream::Read(long Bytes, BSTR *Data)
{
if( Bytes < 0 )
{
_ASSERT( FALSE );
return E_INVALIDARG;
}
if( Data == NULL )
{
_ASSERT( FALSE );
return E_POINTER;
}
BYTE *Buffer = reinterpret_cast< BYTE * >( ::_alloca( Bytes ) );
m_pFile->read( Buffer, static_cast< DWORD >( Bytes ) );
*Data = ::SysAllocStringByteLen( reinterpret_cast< LPCTSTR >( Buffer ), Bytes );
return S_OK;
}