Initial commit: ROW Client source code

Game client codebase including:
- CharacterActionControl: Character and creature management
- GlobalScript: Network, items, skills, quests, utilities
- RYLClient: Main client application with GUI and event handlers
- Engine: 3D rendering engine (RYLGL)
- MemoryManager: Custom memory allocation
- Library: Third-party dependencies (DirectX, boost, etc.)
- Tools: Development utilities

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Engine/Zalla3D Scene Class/Z3DTexturePiece.cpp

@@ -0,0 +1,147 @@
+// SimpleParser.cpp: implementation of the CSimpleParser class.
+//
+//////////////////////////////////////////////////////////////////////
+
+#include "Z3DTexturePiece.h"
+#include "GMMemory.h"
+
+
+inline static int GetBPP( D3DFORMAT format )
+{
+	if( D3DFMT_A8R8G8B8 == format ||
+		D3DFMT_X8R8G8B8 == format ||
+		D3DFMT_X8L8V8U8 == format ||
+		D3DFMT_Q8W8V8U8 == format ||
+		D3DFMT_V16U16 == format ||
+		D3DFMT_W11V11U10 == format ||
+		D3DFMT_A2W10V10U10 == format )
+		return 32;
+
+	if( D3DFMT_R5G6B5   == format ||
+		D3DFMT_X1R5G5B5 == format ||
+		D3DFMT_A1R5G5B5 == format ||
+		D3DFMT_A4R4G4B4 == format ||
+		D3DFMT_A8R3G3B2 == format ||
+		D3DFMT_X4R4G4B4 == format ||
+		D3DFMT_V8U8 == format ||
+		D3DFMT_L6V5U5 == format )
+		return 16;
+
+	if( D3DFMT_R3G3B2 == format || D3DFMT_A8 == format )
+		return 8;
+
+	if( D3DFMT_R8G8B8 == format )
+		return 24;
+
+	return -1; // no proper format
+}
+
+
+bool Z3DTexturePiece::Load( const char* szFileName )
+{
+	FILE* fp;
+
+	if( (fp = fopen( szFileName, "rb" )) == NULL )
+		return false;
+	
+	fread( &wId, sizeof(WORD), 1, fp );
+	fread( &format, sizeof(D3DFORMAT), 1, fp );
+	fread( &sLODCount, sizeof(short), 1, fp );
+	fread( &sX, sizeof(short), 1, fp );
+	fread( &sY, sizeof(short), 1, fp );
+	fread( &sWidth, sizeof(short), 1, fp );
+	fread( &sHeight, sizeof(short), 1, fp );
+
+	int bpp = GetBPP(format) / 8; // 'byte per pixel'
+	int count, x, y;
+
+	count = 0;
+	x = sWidth;
+	y = sHeight;
+	for( int i = 0; i < sLODCount; i++ )
+	{
+		count += (x * y * bpp);
+		x >>= 1;
+		y >>= 1;
+	}
+	pBitmap = new BYTE[count];
+
+	x = sWidth;
+	y = sHeight;
+	BYTE* p = pBitmap;
+	for(int i = 0; i < sLODCount; i++ )
+	{
+		count = x * y * bpp;
+		fread( p, count, 1, fp );
+		p += count;
+		x >>= 1;
+		y >>= 1;
+	}
+
+	fclose(fp);
+
+	return true;
+}
+
+
+bool Z3DTexturePiece::Blt2Texture( IDirect3DTexture8* pTex )
+{
+	_ASSERT( pTex );
+
+	D3DSURFACE_DESC desc;
+	pTex->GetLevelDesc( 0, &desc );
+	int nLODLimit = min((int)pTex->GetLevelCount(), sLODCount);
+
+	int bpp = GetBPP(format);
+
+	if( GetBPP(desc.Format) != bpp )
+		return false;
+
+	bpp /= 8; // now 'bit per pixel' turns to 'byte per pixel'
+	short x = sX, y = sY, w = sWidth, h = sHeight;
+	RECT rect;
+	D3DLOCKED_RECT lockrect;
+	BYTE* pSrc = pBitmap;
+	BYTE* pDest;
+	int i, j, count;
+
+	for( i = 0; i < Z3DTexture::_GetDetailLevel(); i++ )
+	{
+		pSrc += w * h * bpp; // skip piece of data for one level of mipmap
+		nLODLimit = max( 1, nLODLimit-1 );
+		
+		x /= 2;
+		y /= 2;
+		w /= 2;
+		h /= 2;
+	}
+
+	for( i = 0; i < nLODLimit; i++ )
+	{
+		 rect.left = x;
+		 rect.top = y;
+		 rect.right = x+w;
+		 rect.bottom =  y+h;
+
+		if( D3DERR_INVALIDCALL == pTex->LockRect( i, &lockrect, &rect, D3DLOCK_NOSYSLOCK ) )
+			break;
+
+		pDest = (BYTE*)lockrect.pBits;
+		count = w * bpp;
+		for( j = 0; j < h; j++ )
+		{
+			memcpy( pDest, pSrc, count );
+			pDest += lockrect.Pitch;
+			pSrc += count;
+		}
+
+		pTex->UnlockRect(i);
+
+		x /= 2;
+		y /= 2;
+		w /= 2;
+		h /= 2;
+	}
+
+	return true;
+}