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106 lines
3.3 KiB
106 lines
3.3 KiB
///////////////////////////////////////////////////////////////////////////////
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// Copyright (C) Microsoft Corporation, 1998.
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//
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// reftnl.cpp
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//
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// Direct3D Reference Transformation and Lighting - public interface
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//
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///////////////////////////////////////////////////////////////////////////////
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#include "pch.cpp"
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#pragma hdrstop
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#define RESPATH_D3D "Software\\Microsoft\\Direct3D"
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//---------------------------------------------------------------------
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// Gets the value from DIRECT3D registry key
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// Returns TRUE if success
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// If fails value is not changed
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//
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BOOL GetD3DRegValue(DWORD type, char *valueName, LPVOID value, DWORD dwSize)
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{
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HKEY hKey = (HKEY) NULL;
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if (ERROR_SUCCESS == RegOpenKey(HKEY_LOCAL_MACHINE, RESPATH_D3D, &hKey))
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{
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DWORD dwType;
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LONG result;
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result = RegQueryValueEx(hKey, valueName, NULL, &dwType,
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(LPBYTE)value, &dwSize);
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RegCloseKey(hKey);
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return result == ERROR_SUCCESS && dwType == type;
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}
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else
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return FALSE;
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}
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///////////////////////////////////////////////////////////////////////////////
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// RefAlignedBuffer32
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///////////////////////////////////////////////////////////////////////////////
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HRESULT RefAlignedBuffer32::Grow(DWORD growSize)
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{
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if (m_allocatedBuf)
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free(m_allocatedBuf);
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m_size = growSize;
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if ((m_allocatedBuf = malloc(m_size + 31)) == NULL)
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{
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m_allocatedBuf = 0;
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m_alignedBuf = 0;
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m_size = 0;
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return DDERR_OUTOFMEMORY;
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}
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m_alignedBuf = (LPVOID)(((ULONG_PTR)m_allocatedBuf + 31 ) & ~31);
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return S_OK;
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}
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///////////////////////////////////////////////////////////////////////////////
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// RRProcessVertices::InitTL()
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///////////////////////////////////////////////////////////////////////////////
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void
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RRProcessVertices::InitTLData()
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{
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m_LightVertexTable.pfnDirectional = RRLV_Directional;
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m_LightVertexTable.pfnParallelPoint = RRLV_Directional;
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m_LightVertexTable.pfnSpot = RRLV_PointAndSpot;
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m_LightVertexTable.pfnPoint = RRLV_PointAndSpot;
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//
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// Guardband parameters
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//
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// By default enable Guardband and set the extents equal
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// to the default RefRast parameters
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m_dwTLState |= RRPV_GUARDBAND;
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m_ViewData.minXgb = (REF_GB_LEFT);
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m_ViewData.maxXgb = REF_GB_RIGHT;
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m_ViewData.minYgb = (REF_GB_TOP);
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m_ViewData.maxYgb = REF_GB_BOTTOM;
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#if DBG
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DWORD v = 0;
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// Guardband parameters
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if (GetD3DRegValue(REG_DWORD, "DisableGB", &v, 4) &&
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v != 0)
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{
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m_dwTLState &= ~RRPV_GUARDBAND;
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}
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// Try to get test values for the guard band
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char value[80];
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if (GetD3DRegValue(REG_SZ, "GuardBandLeft", &value, 80) &&
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value[0] != 0)
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sscanf(value, "%f", &m_ViewData.minXgb);
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if (GetD3DRegValue(REG_SZ, "GuardBandRight", &value, 80) &&
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value[0] != 0)
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sscanf(value, "%f", &m_ViewData.maxXgb);
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if (GetD3DRegValue(REG_SZ, "GuardBandTop", &value, 80) &&
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value[0] != 0)
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sscanf(value, "%f", &m_ViewData.minYgb);
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if (GetD3DRegValue(REG_SZ, "GuardBandBottom", &value, 80) &&
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value[0] != 0)
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sscanf(value, "%f", &m_ViewData.maxYgb);
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#endif // DBG
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}
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///////////////////////////////////////////////////////////////////////////////
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// end
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