199 lines
4.8 KiB
C++
199 lines
4.8 KiB
C++
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1998 - 1999
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//
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// File: ddclipperobj.cpp
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//
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//--------------------------------------------------------------------------
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// ddClipperObj.cpp : Implementation of CDirectApp and DLL registration.
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#include "stdafx.h"
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#include <stdio.h>
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#include "Direct.h"
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#include "dms.h"
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#include "ddClipperObj.h"
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typedef HRESULT (__stdcall *DDCREATECLIPPER)( DWORD dwFlags, LPDIRECTDRAWCLIPPER FAR *lplpDDClipper, IUnknown FAR *pUnkOuter );
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C_dxj_DirectDrawClipperObject::C_dxj_DirectDrawClipperObject(){
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m__dxj_DirectDrawClipper= NULL;
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parent = NULL;
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pinterface = NULL;
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nextobj = g_dxj_DirectDrawClipper;
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creationid = ++g_creationcount;
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DPF1(1,"Clipper Creation Id [%d] \n",g_creationcount);
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g_dxj_DirectDrawClipper = (void *)this;
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}
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C_dxj_DirectDrawClipperObject::~C_dxj_DirectDrawClipperObject()
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{
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C_dxj_DirectDrawClipperObject *prev=NULL;
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for(C_dxj_DirectDrawClipperObject *ptr=(C_dxj_DirectDrawClipperObject *)g_dxj_DirectDrawClipper; ptr; ptr=(C_dxj_DirectDrawClipperObject *)ptr->nextobj)
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{
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if(ptr == this)
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{
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if(prev)
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prev->nextobj = ptr->nextobj;
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else
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g_dxj_DirectDrawClipper = (void*)ptr->nextobj;
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break;
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}
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prev = ptr;
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}
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if(m__dxj_DirectDrawClipper){
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int count = IUNK(m__dxj_DirectDrawClipper)->Release();
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DPF1(1,"Clipper Real Ref count [%d] \n",count);
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if(count==0) m__dxj_DirectDrawClipper = NULL;
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}
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if(parent) IUNK(parent)->Release();
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}
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DWORD C_dxj_DirectDrawClipperObject::InternalAddRef(){
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DWORD i;
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i=CComObjectRoot::InternalAddRef();
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DPF2(1,"Clipper [%d] AddRef %d \n",creationid,i);
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return i;
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}
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DWORD C_dxj_DirectDrawClipperObject::InternalRelease(){
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DWORD i;
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i=CComObjectRoot::InternalRelease();
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DPF2(1,"Clipper [%d] Release %d \n",creationid,i);
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return i;
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}
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GETSET_OBJECT(_dxj_DirectDrawClipper);
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PASS_THROUGH1_R(_dxj_DirectDrawClipper, isClipListChanged, IsClipListChanged, int *);
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/////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP C_dxj_DirectDrawClipperObject::getClipListSize(int *count)
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{
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HRESULT retval;
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unsigned long buffsize;
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//a NULL RGNDATA pointer returns size!!!
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retval = m__dxj_DirectDrawClipper->GetClipList((LPRECT)NULL, (LPRGNDATA)NULL, &buffsize);
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// return size as number of longs in the rect array
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if ( retval != DD_OK )
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*count = 0; // this case probably means no cliplist is avaible
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else
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*count = (buffsize - sizeof(RGNDATAHEADER))/sizeof(LONG);
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return retval;
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}
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/////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP C_dxj_DirectDrawClipperObject::getClipList( SAFEARRAY **list)
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{
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HRESULT retval;
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LPRGNDATA tmprgn=NULL;
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DWORD buffsize;
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// allocate a private copy of the cliplist
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retval = m__dxj_DirectDrawClipper->GetClipList((LPRECT)NULL, (LPRGNDATA)NULL, &buffsize);
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if FAILED(retval) return retval;
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tmprgn = (LPRGNDATA)malloc(buffsize);
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if ( !tmprgn ) return E_OUTOFMEMORY;
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ZeroMemory(tmprgn,buffsize);
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tmprgn->rdh.dwSize = sizeof(RGNDATAHEADER);
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tmprgn->rdh.iType = RDH_RECTANGLES;
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tmprgn->rdh.nCount;
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// get the actual clip list
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retval = m__dxj_DirectDrawClipper->GetClipList(NULL,tmprgn,&buffsize);
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if ( retval != DD_OK ) return retval;
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__try{
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memcpy ( (((SAFEARRAY*)*list))->pvData,tmprgn->Buffer,tmprgn->rdh.nRgnSize);
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}
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__except(1,1){
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if (tmprgn) free(tmprgn);
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return E_FAIL;
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}
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free(tmprgn);
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return retval;
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}
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/////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP C_dxj_DirectDrawClipperObject::setClipList( long count, SAFEARRAY **list)
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{
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HRESULT retval;
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LPRGNDATA tmprgn;
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// allocate a private copy of the cliplist
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tmprgn = (LPRGNDATA)malloc(sizeof(RGNDATAHEADER)+(count*sizeof(RECT)));
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if ( !tmprgn ) return E_OUTOFMEMORY;
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ZeroMemory(tmprgn,sizeof(RGNDATAHEADER)+(count*sizeof(RECT)));
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tmprgn->rdh.dwSize = sizeof(RGNDATAHEADER);
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tmprgn->rdh.iType = RDH_RECTANGLES;
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tmprgn->rdh.nCount = count;
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tmprgn->rdh.nRgnSize = count*sizeof(RECT);
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__try{
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memcpy ( tmprgn->Buffer,(((SAFEARRAY*)*list))->pvData,tmprgn->rdh.nRgnSize);
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}
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__except(1,1){
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if (tmprgn) free(tmprgn);
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return E_FAIL;
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}
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retval = m__dxj_DirectDrawClipper->SetClipList(tmprgn,0);
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free(tmprgn);
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return retval;
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}
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/////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP C_dxj_DirectDrawClipperObject::getHWnd( HWnd *hwn)
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{
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if (!hwn) return E_FAIL;
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return m__dxj_DirectDrawClipper->GetHWnd( (HWND*)hwn );
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}
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/////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP C_dxj_DirectDrawClipperObject::setHWnd( HWnd hwn)
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{
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return m__dxj_DirectDrawClipper->SetHWnd(0, (HWND)hwn);
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}
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