bool JRenderServer::CacheIB( int ibID, BYTE* pData, int size, int& iteration, int& firstByte )
{
if (ibID < 0 || ibID >= m_IBuffers.size()) return -1;
IBInstance& ib = m_IBuffers[ibID];
if (ib.m_CurIteration == iteration) return true;
// data is not in buffer - try to add it there
if (ib.m_Size < ib.m_CurLastByte + size)
{
// no place in buffer - discard it
ClearIB( ibID );
ib.m_CurLastByte = 0;
ib.m_CurIteration++;
}
if (ib.m_Size < size)
{
rlog.err( "Could not cache %d bytes in index buffer %s", size, ib.m_Name.c_str() );
return false;
}
firstByte = ib.m_CurLastByte;
iteration = ib.m_CurIteration;
BYTE* pBuf = LockIB( ibID, firstByte, size );
memcpy( pBuf, pData, size );
UnlockIB( ibID );
return true;
} // JRenderServer::CacheIB
const DWORD* D3D9Mesh::Indices() const
{
if(_Indices == NULL)
{
LockIB();
}
return _Indices;
}
void JRenderServer::CreateQuadIB()
{
// create quad index buffer
m_QuadIB = CreateIB( "QuadIndexBuffer", c_QuadIBSize, true );
WORD* pQuadIdx = (WORD*)LockIB( m_QuadIB, 0, c_QuadIBSize );
if (!pQuadIdx)
{
rlog.err( "JRenderServer: Could not create internal quad index buffer." );
return;
}
int curV = 0;
for (int i = 0; i < c_QuadIBSize/2; i += 6)
{
pQuadIdx[i ] = curV;
pQuadIdx[i + 1] = curV + 1;
pQuadIdx[i + 2] = curV + 2;
pQuadIdx[i + 3] = curV + 2;
pQuadIdx[i + 4] = curV + 1;
pQuadIdx[i + 5] = curV + 3;
curV += 4;
}
UnlockIB( m_QuadIB );
} // JRenderServer::CreateQuadIB
void D3D9Mesh::Lock() const
{
LockVB();
LockIB();
}
