Sweden-Number/dlls/wined3d/clipper.c

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/* IWineD3DClipper implementation
*
* Copyright 2000 (c) Marcus Meissner
* Copyright 2000 (c) TransGaming Technologies Inc.
* Copyright 2006 (c) Stefan Dösinger
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <stdio.h>
#ifdef HAVE_FLOAT_H
# include <float.h>
#endif
#include "wined3d_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(d3d);
ULONG CDECL wined3d_clipper_incref(struct wined3d_clipper *clipper)
{
ULONG refcount = InterlockedIncrement(&clipper->ref);
TRACE("%p increasing refcount to %u.\n", clipper, refcount);
return refcount;
}
ULONG CDECL wined3d_clipper_decref(struct wined3d_clipper *clipper)
{
ULONG refcount = InterlockedDecrement(&clipper->ref);
TRACE("%p decreasing refcount to %u.\n", clipper, refcount);
if (!refcount)
HeapFree(GetProcessHeap(), 0, clipper);
return refcount;
}
HRESULT CDECL wined3d_clipper_set_window(struct wined3d_clipper *clipper, DWORD flags, HWND window)
{
TRACE("clipper %p, flags %#x, window %p.\n", clipper, flags, window);
if (flags)
{
FIXME("flags %#x, not supported.\n", flags);
return WINED3DERR_INVALIDCALL;
}
clipper->hWnd = window;
return WINED3D_OK;
}
HRESULT CDECL wined3d_clipper_get_clip_list(const struct wined3d_clipper *clipper, const RECT *rect,
RGNDATA *clip_list, DWORD *clip_list_size)
{
TRACE("clipper %p, rect %s, clip_list %p, clip_list_size %p.\n",
clipper, wine_dbgstr_rect(rect), clip_list, clip_list_size);
if (clipper->hWnd)
{
HDC hDC = GetDCEx(clipper->hWnd, NULL, DCX_WINDOW);
if (hDC)
{
HRGN hRgn = CreateRectRgn(0,0,0,0);
if (GetRandomRgn(hDC, hRgn, SYSRGN))
{
if (GetVersion() & 0x80000000)
{
/* map region to screen coordinates */
POINT org;
GetDCOrgEx(hDC, &org);
OffsetRgn(hRgn, org.x, org.y);
}
if (rect)
{
HRGN hRgnClip = CreateRectRgn(rect->left, rect->top,
rect->right, rect->bottom);
CombineRgn(hRgn, hRgn, hRgnClip, RGN_AND);
DeleteObject(hRgnClip);
}
*clip_list_size = GetRegionData(hRgn, *clip_list_size, clip_list);
}
DeleteObject(hRgn);
ReleaseDC(clipper->hWnd, hDC);
}
return WINED3D_OK;
}
else
{
static unsigned int once;
if (!once++)
FIXME("clipper %p, rect %s, clip_list %p, clip_list_size %p stub!\n",
clipper, wine_dbgstr_rect(rect), clip_list, clip_list_size);
if (clip_list_size)
*clip_list_size = 0;
return WINEDDERR_NOCLIPLIST;
}
}
HRESULT CDECL wined3d_clipper_set_clip_list(struct wined3d_clipper *clipper, const RGNDATA *region, DWORD flags)
{
static unsigned int once;
if (!once++ || !region)
FIXME("clipper %p, region %p, flags %#x stub!\n", clipper, region, flags);
return WINED3D_OK;
}
HRESULT CDECL wined3d_clipper_get_window(const struct wined3d_clipper *clipper, HWND *window)
{
TRACE("clipper %p, window %p.\n", clipper, window);
*window = clipper->hWnd;
return WINED3D_OK;
}
HRESULT CDECL wined3d_clipper_is_clip_list_changed(const struct wined3d_clipper *clipper, BOOL *changed)
{
FIXME("clipper %p, changed %p stub!\n", clipper, changed);
/* XXX What is safest? */
*changed = FALSE;
return WINED3D_OK;
}
struct wined3d_clipper * CDECL wined3d_clipper_create(void)
{
struct wined3d_clipper *clipper;
2010-08-31 18:41:39 +02:00
TRACE("\n");
clipper = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*clipper));
if (!clipper)
{
ERR("Out of memory when trying to allocate a WineD3D Clipper\n");
return NULL;
}
wined3d_clipper_incref(clipper);
return clipper;
}