Sweden-Number/dlls/ddraw/clipper.c

284 lines
8.1 KiB
C

/* DirectDrawClipper implementation
*
* Copyright 2000 Marcus Meissner
* Copyright 2000 TransGaming Technologies Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "ddraw.h"
#include "winerror.h"
#include "ddraw_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
/******************************************************************************
* DirectDrawCreateClipper (DDRAW.@)
*/
static const IDirectDrawClipperVtbl DDRAW_Clipper_VTable;
HRESULT WINAPI DirectDrawCreateClipper(
DWORD dwFlags, LPDIRECTDRAWCLIPPER *lplpDDClipper, LPUNKNOWN pUnkOuter
) {
IDirectDrawClipperImpl* This;
TRACE("(%08lx,%p,%p)\n", dwFlags, lplpDDClipper, pUnkOuter);
if (pUnkOuter != NULL) return CLASS_E_NOAGGREGATION;
This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(IDirectDrawClipperImpl));
if (This == NULL) return E_OUTOFMEMORY;
ICOM_INIT_INTERFACE(This, IDirectDrawClipper, DDRAW_Clipper_VTable);
This->ref = 1;
This->hWnd = 0;
This->ddraw_owner = NULL;
*lplpDDClipper = ICOM_INTERFACE(This, IDirectDrawClipper);
return DD_OK;
}
/* This is the classfactory implementation. */
HRESULT DDRAW_CreateDirectDrawClipper(IUnknown* pUnkOuter, REFIID riid,
LPVOID* ppObj)
{
HRESULT hr;
LPDIRECTDRAWCLIPPER pClip;
hr = DirectDrawCreateClipper(0, &pClip, pUnkOuter);
if (FAILED(hr)) return hr;
hr = IDirectDrawClipper_QueryInterface(pClip, riid, ppObj);
IDirectDrawClipper_Release(pClip);
return hr;
}
/******************************************************************************
* IDirectDrawClipper
*/
HRESULT WINAPI Main_DirectDrawClipper_SetHwnd(
LPDIRECTDRAWCLIPPER iface, DWORD dwFlags, HWND hWnd
) {
IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
TRACE("(%p)->(0x%08lx,0x%08lx)\n", This, dwFlags, (DWORD)hWnd);
if( dwFlags ) {
FIXME("dwFlags = 0x%08lx, not supported.\n",dwFlags);
return DDERR_INVALIDPARAMS;
}
This->hWnd = hWnd;
return DD_OK;
}
static void Main_DirectDrawClipper_Destroy(IDirectDrawClipperImpl* This)
{
if (This->ddraw_owner != NULL)
Main_DirectDraw_RemoveClipper(This->ddraw_owner, This);
HeapFree(GetProcessHeap(), 0 ,This);
}
void Main_DirectDrawClipper_ForceDestroy(IDirectDrawClipperImpl* This)
{
WARN("deleting clipper %p with refcnt %lu\n", This, This->ref);
Main_DirectDrawClipper_Destroy(This);
}
ULONG WINAPI Main_DirectDrawClipper_Release(LPDIRECTDRAWCLIPPER iface) {
IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p)->() decrementing from %lu.\n", This, ref + 1);
if (ref == 0)
{
Main_DirectDrawClipper_Destroy(This);
return 0;
}
else return ref;
}
/***********************************************************************
* IDirectDrawClipper::GetClipList
*
* Retrieve a copy of the clip list
*
* PARAMS
* lpRect Rectangle to be used to clip the clip list or NULL for the
* entire clip list
* lpClipList structure for the resulting copy of the clip list.
If NULL, fills lpdwSize up to the number of bytes necessary to hold
the entire clip.
* lpdwSize Size of resulting clip list; size of the buffer at lpClipList
or, if lpClipList is NULL, receives the required size of the buffer
in bytes
* RETURNS
* Either DD_OK or DDERR_*
*/
HRESULT WINAPI Main_DirectDrawClipper_GetClipList(
LPDIRECTDRAWCLIPPER iface, LPRECT lpRect, LPRGNDATA lpClipList,
LPDWORD lpdwSize)
{
IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
TRACE("(%p,%p,%p,%p)\n", This, lpRect, lpClipList, lpdwSize);
if (This->hWnd)
{
HDC hDC = GetDCEx(This->hWnd, NULL, DCX_WINDOW);
if (hDC)
{
HRGN hRgn = CreateRectRgn(0,0,0,0);
if (GetRandomRgn(hDC, hRgn, SYSRGN))
{
if (lpRect)
{
HRGN hRgnClip = CreateRectRgn(lpRect->left, lpRect->top,
lpRect->right, lpRect->bottom);
CombineRgn(hRgn, hRgn, hRgnClip, RGN_AND);
DeleteObject(hRgnClip);
}
*lpdwSize = GetRegionData(hRgn, *lpdwSize, lpClipList);
}
DeleteObject(hRgn);
ReleaseDC(This->hWnd, hDC);
}
return DD_OK;
}
else
{
static int warned = 0;
if (warned++ < 10)
FIXME("(%p,%p,%p,%p),stub!\n",This,lpRect,lpClipList,lpdwSize);
if (lpdwSize) *lpdwSize=0;
return DDERR_NOCLIPLIST;
}
}
/***********************************************************************
* IDirectDrawClipper::SetClipList
*
* Sets or deletes (if lprgn is NULL) the clip list
*
* PARAMS
* lprgn Pointer to a LRGNDATA structure or NULL
* dwFlags not used, must be 0
* RETURNS
* Either DD_OK or DDERR_*
*/
HRESULT WINAPI Main_DirectDrawClipper_SetClipList(
LPDIRECTDRAWCLIPPER iface,LPRGNDATA lprgn,DWORD dwFlag
) {
IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
static int warned = 0;
if (warned++ < 10 || lprgn == NULL)
FIXME("(%p,%p,%ld),stub!\n",This,lprgn,dwFlag);
return DD_OK;
}
HRESULT WINAPI Main_DirectDrawClipper_QueryInterface(
LPDIRECTDRAWCLIPPER iface, REFIID riid, LPVOID* ppvObj
) {
IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
if (IsEqualGUID(&IID_IUnknown, riid)
|| IsEqualGUID(&IID_IDirectDrawClipper, riid))
{
*ppvObj = ICOM_INTERFACE(This, IDirectDrawClipper);
InterlockedIncrement(&This->ref);
return S_OK;
}
else
{
return E_NOINTERFACE;
}
}
ULONG WINAPI Main_DirectDrawClipper_AddRef( LPDIRECTDRAWCLIPPER iface )
{
IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p)->() incrementing from %lu.\n", This, ref - 1);
return ref;
}
HRESULT WINAPI Main_DirectDrawClipper_GetHWnd(
LPDIRECTDRAWCLIPPER iface, HWND* hWndPtr
) {
IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
TRACE("(%p)->(%p)\n", This, hWndPtr);
*hWndPtr = This->hWnd;
return DD_OK;
}
HRESULT WINAPI Main_DirectDrawClipper_Initialize(
LPDIRECTDRAWCLIPPER iface, LPDIRECTDRAW lpDD, DWORD dwFlags
) {
IDirectDrawImpl* pOwner;
IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
TRACE("(%p)->(%p,0x%08lx)\n", This, lpDD, dwFlags);
if (This->ddraw_owner != NULL) return DDERR_ALREADYINITIALIZED;
pOwner = ICOM_OBJECT(IDirectDrawImpl, IDirectDraw, lpDD);
This->ddraw_owner = pOwner;
Main_DirectDraw_AddClipper(pOwner, This);
return DD_OK;
}
HRESULT WINAPI Main_DirectDrawClipper_IsClipListChanged(
LPDIRECTDRAWCLIPPER iface, BOOL* lpbChanged
) {
IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
FIXME("(%p)->(%p),stub!\n",This,lpbChanged);
/* XXX What is safest? */
*lpbChanged = FALSE;
return DD_OK;
}
static const IDirectDrawClipperVtbl DDRAW_Clipper_VTable =
{
Main_DirectDrawClipper_QueryInterface,
Main_DirectDrawClipper_AddRef,
Main_DirectDrawClipper_Release,
Main_DirectDrawClipper_GetClipList,
Main_DirectDrawClipper_GetHWnd,
Main_DirectDrawClipper_Initialize,
Main_DirectDrawClipper_IsClipListChanged,
Main_DirectDrawClipper_SetClipList,
Main_DirectDrawClipper_SetHwnd
};