172 lines
3.5 KiB
C++
172 lines
3.5 KiB
C++
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#include "stdafx.h"
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#include "Direct.h"
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#include "dms.h"
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#include "DDEnumModes2Obj.h"
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extern BOOL IsAllZeros(void *pStruct,DWORD size);
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extern "C" HRESULT PASCAL objEnumModes2Callback(LPDDSURFACEDESC2 lpDesc, void *lpArg)
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{
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#ifdef _DEBUG
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OutputDebugString("Entered objEnumModes2Callback\r\n");
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#endif
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C_dxj_DDEnumModes2Object *pObj=(C_dxj_DDEnumModes2Object*)lpArg;
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if (pObj==NULL) return DDENUMRET_OK;
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if (pObj->m_nCount >= pObj->m_nMax)
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{
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pObj->m_nMax += 10;
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if (pObj->m_pList)
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pObj->m_pList=(DDSurfaceDesc2*)realloc(pObj->m_pList,sizeof(DDSurfaceDesc2)* pObj->m_nMax);
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else
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pObj->m_pList=(DDSurfaceDesc2*)malloc(sizeof(DDSurfaceDesc2)* pObj->m_nMax);
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if (pObj->m_pList==NULL)
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{
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pObj->m_bProblem=TRUE;
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return FALSE;
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}
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}
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if (lpDesc==NULL) {
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pObj->m_bProblem=TRUE;
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return FALSE;
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}
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HRESULT hr=CopyOutDDSurfaceDesc2(&(pObj->m_pList[pObj->m_nCount]),lpDesc);
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if (FAILED(hr)){
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pObj->m_bProblem=TRUE;
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return FALSE;
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}
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pObj->m_nCount++;
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return TRUE;
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}
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C_dxj_DDEnumModes2Object::C_dxj_DDEnumModes2Object()
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{
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m_nMax=0;
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m_pList=NULL;
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m_nCount=0;
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m_bProblem=FALSE;
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}
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C_dxj_DDEnumModes2Object::~C_dxj_DDEnumModes2Object()
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{
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//empty list
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if (m_pList){
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free(m_pList);
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}
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}
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HRESULT C_dxj_DDEnumModes2Object::create(LPDIRECTDRAW4 pdd, long flags, DDSurfaceDesc2 *desc, I_dxj_DDEnumModes2 **ppRet)
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{
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HRESULT hr;
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C_dxj_DDEnumModes2Object *pNew=NULL;
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//ASSERT(ppRet,"C_dxj_DDEnumObject::create passed invalid arg");
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*ppRet=NULL;
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if (!pdd) return E_INVALIDARG;
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pNew= new CComObject<C_dxj_DDEnumModes2Object>;
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if (!pNew) return E_OUTOFMEMORY;
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pNew->m_bProblem=FALSE;
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//note DDSurfaceDesc as a DDSURFACEDESC structure inside it.
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if ((desc==NULL)|| (IsAllZeros(desc,sizeof(DDSurfaceDesc2)))) {
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hr=pdd->EnumDisplayModes((DWORD)flags,NULL,pNew,objEnumModes2Callback);
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}
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else {
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DDSURFACEDESC2 desc2;
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hr=CopyInDDSurfaceDesc2(&desc2,desc);
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if (hr==S_OK){
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hr=pdd->EnumDisplayModes((DWORD)flags,&desc2,pNew,objEnumModes2Callback);
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}
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}
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if (pNew->m_bProblem) hr=E_OUTOFMEMORY;
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if FAILED(hr)
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{
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free(pNew->m_pList);
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pNew->m_pList=NULL;
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delete pNew;
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return hr;
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}
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hr=pNew->QueryInterface(IID_I_dxj_DDEnumModes2,(void**)ppRet);
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return hr;
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}
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#if 0
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HRESULT C_dxj_DDEnumModes2Object::create7(LPDIRECTDRAW7 pdd, long flags, DDSurfaceDesc2 *desc, I_dxj_DDEnumModes2 **ppRet)
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{
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HRESULT hr;
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C_dxj_DDEnumModes2Object *pNew=NULL;
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//ASSERT(ppRet,"C_dxj_DDEnumObject::create passed invalid arg");
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*ppRet=NULL;
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if (!pdd) return E_INVALIDARG;
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pNew= new CComObject<C_dxj_DDEnumModes2Object>;
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if (!pNew) return E_OUTOFMEMORY;
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pNew->m_bProblem=FALSE;
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//note DDSurfaceDesc as a DDSURFACEDESC structure inside it.
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if ((desc==NULL)|| (IsAllZeros(desc,sizeof(DDSurfaceDesc2)))) {
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hr=pdd->EnumDisplayModes((DWORD)flags,NULL,pNew,objEnumModes2Callback);
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}
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else {
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DDSURFACEDESC2 desc2;
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hr=CopyInDDSurfaceDesc2(&desc2,desc);
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if (hr==S_OK){
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hr=pdd->EnumDisplayModes((DWORD)flags,&desc2,pNew,objEnumModes2Callback);
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}
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}
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if (pNew->m_bProblem) hr=E_OUTOFMEMORY;
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if FAILED(hr)
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{
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free(pNew->m_pList);
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pNew->m_pList=NULL;
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delete pNew;
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return hr;
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}
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hr=pNew->QueryInterface(IID_I_dxj_DDEnumModes2,(void**)ppRet);
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return hr;
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}
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#endif
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HRESULT C_dxj_DDEnumModes2Object::getItem( long index, DDSurfaceDesc2 *info)
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{
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if (m_pList==NULL) return E_FAIL;
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if (index < 1) return E_INVALIDARG;
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if (index > m_nCount) return E_INVALIDARG;
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memcpy(info,&(m_pList[index-1]),sizeof(DDSurfaceDesc2));
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return S_OK;
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}
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HRESULT C_dxj_DDEnumModes2Object::getCount(long *retVal)
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{
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*retVal=m_nCount;
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return S_OK;
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}
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