windows-server-2003/multimedia/directx/dxvb/dx7vb/ddenumsurfaces7obj.cpp

//+-------------------------------------------------------------------------
//
//  Microsoft Windows
//
//  Copyright (C) Microsoft Corporation, 1998 - 1999
//
//  File:       ddenumsurfaces7obj.cpp
//
//--------------------------------------------------------------------------


#include "stdafx.h"
#include "Direct.h"
#include "dms.h"
#include "DDSurface7Obj.h"
#include "DDEnumSurfaces7Obj.h"

extern BOOL IsAllZeros(void*,DWORD size);
//extern HRESULT CopyInDDSurfaceDesc2(DDSURFACEDESC2*,DDSurfaceDesc2*);
//extern HRESULT CopyOutDDSurfaceDesc2(DDSurfaceDesc2*,DDSURFACEDESC2*);


//////////////////////////////////////////////////////////////////////
// objEnumSurfaces7Callback
//////////////////////////////////////////////////////////////////////
extern "C" HRESULT PASCAL objEnumSurfaces7Callback(LPDIRECTDRAWSURFACE7 lpddSurf,
								LPDDSURFACEDESC2 lpDDSurfaceDesc, void *lpArg)
{
	DPF1(1,"Entered objEnumSurfaces7Callback \r\n");


	C_dxj_DDEnumSurfaces7Object  *pObj=(C_dxj_DDEnumSurfaces7Object  *)lpArg;
	I_dxj_DirectDrawSurface7	*lpddSNew=NULL;

	if (pObj==NULL) {
		pObj->m_bProblem=TRUE;
		return DDENUMRET_CANCEL;
	}

	//create a surface7 object but dont have a back reference to this object!!!
	INTERNAL_CREATE_NOADDREF(_dxj_DirectDrawSurface7, lpddSurf, &lpddSNew);
	if (lpddSNew==NULL) {
		pObj->m_bProblem=TRUE;
		return DDENUMRET_CANCEL;
	}
		
	if (pObj->m_nCount >= pObj->m_nMax) 
	{
		pObj->m_nMax += 10;

		if (pObj->m_pList)
			pObj->m_pList=(I_dxj_DirectDrawSurface7**)realloc(pObj->m_pList,sizeof(void*) * pObj->m_nMax);
		else
			pObj->m_pList=(I_dxj_DirectDrawSurface7**)malloc(sizeof(void*) * pObj->m_nMax);


		if (pObj->m_pList==NULL) 
		{
			pObj->m_bProblem=TRUE;
			return DDENUMRET_OK;
		}
	}


	pObj->m_pList[pObj->m_nCount]=lpddSNew;

	return DDENUMRET_OK;
}

//////////////////////////////////////////////////////////////////////
// C_dxj_DDEnumSurfaces7Object
//////////////////////////////////////////////////////////////////////
C_dxj_DDEnumSurfaces7Object::C_dxj_DDEnumSurfaces7Object()
{	
	m_nMax=0;
	m_pList=NULL;
	m_nCount=0;
	m_bProblem=FALSE;
	m_pDD=NULL;
	m_pDDS=NULL;
}

//////////////////////////////////////////////////////////////////////
// ~C_dxj_DDEnumSurfaces7Object
//////////////////////////////////////////////////////////////////////
C_dxj_DDEnumSurfaces7Object::~C_dxj_DDEnumSurfaces7Object()
{
	//empty list
	if (m_pList){
		for (int i=0;i<m_nCount;i++)
		{
			if (m_pList[i]) m_pList[i]->Release();
		}
		free(m_pList);
	}
	if (m_pDDS)	m_pDDS->Release();
	if (m_pDD)	m_pDD->Release();
}


//////////////////////////////////////////////////////////////////////
// create  ddraw->enum
//////////////////////////////////////////////////////////////////////
HRESULT C_dxj_DDEnumSurfaces7Object::create(LPDIRECTDRAW7  dd, long flags, DDSurfaceDesc2 *desc,I_dxj_DDEnumSurfaces7 **ppRet)
{
	
	return E_NOTIMPL;

	//For the sake of making sure that all Surfaces2 are destroyed before
	//ddraw is
	

	HRESULT hr;
	C_dxj_DDEnumSurfaces7Object *pNew=NULL;

	if (!dd) return E_INVALIDARG;

	//ASSERT(ppRet,"C_dxj_DDEnumSurfaces7Object::create passed invalid arg");
	*ppRet=NULL;

	pNew= new CComObject<C_dxj_DDEnumSurfaces7Object>;			
	if (!pNew) return E_OUTOFMEMORY;

	pNew->m_bProblem=FALSE;
	pNew->m_pDD=dd;
	pNew->m_pDD->AddRef();
	

	//if the description is all zeros allow use to pass in NULL
	if ((desc==NULL)||(IsAllZeros(desc,sizeof(DDSurfaceDesc2)))){
		//d3dcore bug
		//hr=dd->EnumSurfaces((DWORD)flags,NULL,(void*)pNew,objEnumSurfaces7Callback);
	}
	//otherwise use the surface description to enumerate
	else {		
		DDSURFACEDESC2 realdesc;
		hr=CopyInDDSurfaceDesc2(&realdesc,desc);
		if (hr==S_OK){
			//d3dcore bug
		//	hr=dd->EnumSurfaces((DWORD)flags,(DDSURFACEDESC2*)&realdesc,(void*)pNew,objEnumSurfaces7Callback);
		}
	}

	if (pNew->m_bProblem) hr=E_OUTOFMEMORY;

	if FAILED(hr) 
	{
		delete pNew;	
		return hr;
	}

	hr=pNew->QueryInterface(IID_I_dxj_DDEnumSurfaces7,(void**)ppRet);
	
	return hr;
}

//////////////////////////////////////////////////////////////////////
// createZEnum  ddrawsurface->enumZ
//////////////////////////////////////////////////////////////////////
			
HRESULT C_dxj_DDEnumSurfaces7Object::createZEnum(LPDIRECTDRAWSURFACE7  dd, long flags, I_dxj_DDEnumSurfaces7 **ppRet)
{
	
	//For the sake of making sure that all Surfaces2 are destroyed before
	//ddraw is
	
	//return E_NOTIMPL;

	HRESULT hr;
	C_dxj_DDEnumSurfaces7Object *pNew=NULL;

	if (!dd) return E_INVALIDARG;

	//ASSERT(ppRet,"C_dxj_DDEnumSurfaces7Object::create passed invalid arg");
	*ppRet=NULL;

	pNew= new CComObject<C_dxj_DDEnumSurfaces7Object>;			
	if (!pNew) return E_OUTOFMEMORY;

	pNew->m_bProblem=FALSE;
	pNew->m_pDDS=dd;
	pNew->m_pDDS->AddRef();
	
	//d3d core bug
	hr=dd->EnumOverlayZOrders((DWORD)flags,(void*)pNew,objEnumSurfaces7Callback);

	if (pNew->m_bProblem) hr=E_OUTOFMEMORY;

	if FAILED(hr) 
	{
		delete pNew;	
		return hr;
	}

	hr=pNew->QueryInterface(IID_I_dxj_DDEnumSurfaces7,(void**)ppRet);
	
	return hr;
}


//////////////////////////////////////////////////////////////////////
// createAttachedEnum  ddrawsurface->enum
//////////////////////////////////////////////////////////////////////
HRESULT C_dxj_DDEnumSurfaces7Object::createAttachedEnum(LPDIRECTDRAWSURFACE7  dd,  I_dxj_DDEnumSurfaces7 **ppRet)
{
	
	//For the sake of making sure that all Surfaces2 are destroyed before
	//ddraw is
	
	//return E_NOTIMPL;

	HRESULT hr;
	C_dxj_DDEnumSurfaces7Object *pNew=NULL;

	if (!dd) return E_INVALIDARG;

	//ASSERT(ppRet,"C_dxj_DDEnumSurfaces7Object::create passed invalid arg");
	*ppRet=NULL;

	pNew= new CComObject<C_dxj_DDEnumSurfaces7Object>;			
	if (!pNew) return E_OUTOFMEMORY;

	pNew->m_bProblem=FALSE;
	pNew->m_pDDS=dd;
	pNew->m_pDDS->AddRef();
	
	hr=dd->EnumAttachedSurfaces((void*)pNew,objEnumSurfaces7Callback);

	if (pNew->m_bProblem) hr=E_OUTOFMEMORY;

	if FAILED(hr) 
	{
		delete pNew;	
		return hr;
	}

	hr=pNew->QueryInterface(IID_I_dxj_DDEnumSurfaces7,(void**)ppRet);
	
	return hr;
}

//////////////////////////////////////////////////////////////////////
// getItem
//////////////////////////////////////////////////////////////////////
HRESULT C_dxj_DDEnumSurfaces7Object::getItem( long index, I_dxj_DirectDrawSurface7 **info)
{
	if (m_pList==NULL) return E_FAIL;
	if (index < 1) return E_INVALIDARG;
	if (index > m_nCount) return E_INVALIDARG;

	*info=m_pList[index];
	if (m_pList[index-1]) (m_pList[index-1])->AddRef();

	return S_OK;
}

//////////////////////////////////////////////////////////////////////
// getCount
//////////////////////////////////////////////////////////////////////
HRESULT C_dxj_DDEnumSurfaces7Object::getCount(long *retVal)
{
	*retVal=m_nCount;
	return S_OK;
}