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win32u: Move NtUserScrollDC implementation from user32. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2021-11-17 12:49:37 +01:00 committed by Alexandre Julliard
parent d60708a17f
commit 5204622efa
11 changed files with 133 additions and 131 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
dlls/user32/driver.c
View File

@ -154,15 +154,6 @@ static void CDECL nulldrv_ReleaseDC( HWND hwnd, HDC hdc )
{
}
static BOOL CDECL nulldrv_ScrollDC( HDC hdc, INT dx, INT dy, HRGN update )
{
RECT rect;
GetClipBox( hdc, &rect );
return BitBlt( hdc, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top,
hdc, rect.left - dx, rect.top - dy, SRCCOPY );
}
static void CDECL nulldrv_SetCapture( HWND hwnd, UINT flags )
{
}
@ -365,7 +356,7 @@ static struct user_driver_funcs lazy_load_driver =
loaderdrv_GetDC,
nulldrv_MsgWaitForMultipleObjectsEx,
nulldrv_ReleaseDC,
nulldrv_ScrollDC,
NULL,
nulldrv_SetCapture,
nulldrv_SetFocus,
loaderdrv_SetLayeredWindowAttributes,

115
dlls/user32/painting.c
View File

@ -1506,7 +1506,7 @@ static INT scroll_window( HWND hwnd, INT dx, INT dy, const RECT *rect, const REC
hDC = GetDCEx( hwnd, 0, dcxflags);
if (hDC)
{
ScrollDC( hDC, dx, dy, &rc, &cliprc, hrgnUpdate, rcUpdate );
NtUserScrollDC( hDC, dx, dy, &rc, &cliprc, hrgnUpdate, rcUpdate );
ReleaseDC( hwnd, hDC );
@ -1632,119 +1632,6 @@ BOOL WINAPI ScrollWindow( HWND hwnd, INT dx, INT dy,
SW_INVALIDATE | SW_ERASE | (rect ? 0 : SW_SCROLLCHILDREN), FALSE ) != ERROR;
}
/*************************************************************************
* ScrollDC (USER32.@)
*
* dx, dy, lprcScroll and lprcClip are all in logical coordinates (msdn is
* wrong) hrgnUpdate is returned in device coordinates with rcUpdate in
* logical coordinates.
*/
BOOL WINAPI ScrollDC( HDC hdc, INT dx, INT dy, const RECT *scroll, const RECT *clip,
HRGN ret_update_rgn, LPRECT update_rect )
{
HRGN update_rgn = ret_update_rgn;
RECT src_rect, clip_rect, offset;
INT dxdev, dydev;
HRGN dstrgn, cliprgn, visrgn;
BOOL ret;
TRACE( "dx,dy %d,%d scroll %s clip %s update %p rect %p\n",
dx, dy, wine_dbgstr_rect(scroll), wine_dbgstr_rect(clip), ret_update_rgn, update_rect );
/* get the visible region */
visrgn = CreateRectRgn( 0, 0, 0, 0 );
GetRandomRgn( hdc, visrgn, SYSRGN );
if (!(GetVersion() & 0x80000000))
{
POINT org;
GetDCOrgEx( hdc, &org );
OffsetRgn( visrgn, -org.x, -org.y );
}
/* intersect with the clipping region if the DC has one */
cliprgn = CreateRectRgn( 0, 0, 0, 0);
if (GetClipRgn( hdc, cliprgn ) != 1)
{
DeleteObject( cliprgn );
cliprgn = 0;
}
else CombineRgn( visrgn, visrgn, cliprgn, RGN_AND );
/* only those pixels in the scroll rectangle that remain in the clipping
* rect are scrolled. */
if (clip)
clip_rect = *clip;
else
GetClipBox( hdc, &clip_rect );
src_rect = clip_rect;
OffsetRect( &clip_rect, -dx, -dy );
IntersectRect( &src_rect, &src_rect, &clip_rect );
/* if an scroll rectangle is specified, only the pixels within that
* rectangle are scrolled */
if (scroll) IntersectRect( &src_rect, &src_rect, scroll );
/* now convert to device coordinates */
LPtoDP( hdc, (LPPOINT)&src_rect, 2 );
TRACE( "source rect: %s\n", wine_dbgstr_rect(&src_rect) );
/* also dx and dy */
SetRect( &offset, 0, 0, dx, dy );
LPtoDP( hdc, (LPPOINT)&offset, 2 );
dxdev = offset.right - offset.left;
dydev = offset.bottom - offset.top;
/* now intersect with the visible region to get the pixels that will actually scroll */
dstrgn = CreateRectRgnIndirect( &src_rect );
CombineRgn( dstrgn, dstrgn, visrgn, RGN_AND );
OffsetRgn( dstrgn, dxdev, dydev );
ExtSelectClipRgn( hdc, dstrgn, RGN_AND );
/* compute the update areas. This is the combined clip rectangle
* minus the scrolled region, and intersected with the visible region. */
if (ret_update_rgn || update_rect)
{
/* intersect clip and scroll rectangles, allowing NULL values */
if (scroll)
{
if (clip)
IntersectRect( &clip_rect, clip, scroll );
else
clip_rect = *scroll;
}
else if (clip)
clip_rect = *clip;
else
GetClipBox( hdc, &clip_rect );
/* Convert the combined clip rectangle to device coordinates */
LPtoDP( hdc, (LPPOINT)&clip_rect, 2 );
if (update_rgn)
SetRectRgn( update_rgn, clip_rect.left, clip_rect.top, clip_rect.right, clip_rect.bottom );
else
update_rgn = CreateRectRgnIndirect( &clip_rect );
CombineRgn( update_rgn, update_rgn, visrgn, RGN_AND );
CombineRgn( update_rgn, update_rgn, dstrgn, RGN_DIFF );
}
ret = USER_Driver->pScrollDC( hdc, dx, dy, update_rgn );
if (ret && update_rect)
{
GetRgnBox( update_rgn, update_rect );
DPtoLP( hdc, (LPPOINT)update_rect, 2 );
TRACE( "returning update_rect %s\n", wine_dbgstr_rect(update_rect) );
}
if (!ret_update_rgn) DeleteObject( update_rgn );
SelectClipRgn( hdc, cliprgn );
if (cliprgn) DeleteObject( cliprgn );
DeleteObject( visrgn );
DeleteObject( dstrgn );
return ret;
}
/************************************************************************
* PrintWindow (USER32.@)
*

2
dlls/user32/user32.spec
View File

@ -627,7 +627,7 @@
@ stdcall ReuseDDElParam(long long long long long)
@ stdcall ScreenToClient(long ptr)
@ stdcall ScrollChildren(long long long long)
@ stdcall ScrollDC(long long long ptr ptr long ptr)
@ stdcall ScrollDC(long long long ptr ptr long ptr) NtUserScrollDC
@ stdcall ScrollWindow(long long long ptr ptr)
@ stdcall ScrollWindowEx(long long long ptr ptr long ptr long)
@ stdcall SendDlgItemMessageA(long long long long long)

1
dlls/win32u/driver.c
View File

@ -1054,6 +1054,7 @@ static const struct user_driver_funcs lazy_load_driver =
.pUnregisterHotKey = loaderdrv_UnregisterHotKey,
.pVkKeyScanEx = loaderdrv_VkKeyScanEx,
.pUpdateClipboard = loaderdrv_UpdateClipboard,
.pScrollDC = nulldrv_ScrollDC,
};
const struct user_driver_funcs *user_driver = &lazy_load_driver;

5
dlls/win32u/font.c
View File

@ -277,11 +277,6 @@ static inline INT INTERNAL_YWSTODS(DC *dc, INT height)
return pt[1].y - pt[0].y;
}
static inline BOOL is_win9x(void)
{
return NtCurrentTeb()->Peb->OSPlatformId == VER_PLATFORM_WIN32s;
}
static inline WCHAR *strdupW( const WCHAR *p )
{
WCHAR *ret;

1
dlls/win32u/gdiobj.c
View File

@ -1175,6 +1175,7 @@ static struct unix_funcs unix_funcs =
NtUserGetUpdatedClipboardFormats,
NtUserIsClipboardFormatAvailable,
NtUserMapVirtualKeyEx,
NtUserScrollDC,
NtUserToUnicodeEx,
NtUserUnregisterHotKey,
NtUserVkKeyScanEx,

112
dlls/win32u/painting.c
View File

@ -905,3 +905,115 @@ BOOL WINAPI NtGdiDrawStream( HDC hdc, ULONG in, void *pvin )
FIXME("stub: %p, %d, %p\n", hdc, in, pvin);
return FALSE;
}
/*************************************************************************
* NtUserScrollDC (win32u.@)
*/
BOOL WINAPI NtUserScrollDC( HDC hdc, INT dx, INT dy, const RECT *scroll, const RECT *clip,
HRGN ret_update_rgn, RECT *update_rect )
{
HRGN update_rgn = ret_update_rgn;
RECT src_rect, clip_rect, offset;
INT dxdev, dydev;
HRGN dstrgn, cliprgn, visrgn;
POINT org;
DC *dc;
BOOL ret;
TRACE( "dx,dy %d,%d scroll %s clip %s update %p rect %p\n",
dx, dy, wine_dbgstr_rect(scroll), wine_dbgstr_rect(clip), ret_update_rgn, update_rect );
if (!(dc = get_dc_ptr( hdc ))) return FALSE;
org.x = dc->attr->vis_rect.left;
org.y = dc->attr->vis_rect.top;
release_dc_ptr( dc );
/* get the visible region */
visrgn = NtGdiCreateRectRgn( 0, 0, 0, 0 );
NtGdiGetRandomRgn( hdc, visrgn, SYSRGN );
if (!is_win9x()) NtGdiOffsetRgn( visrgn, -org.x, -org.y );
/* intersect with the clipping region if the DC has one */
cliprgn = NtGdiCreateRectRgn( 0, 0, 0, 0);
if (NtGdiGetRandomRgn( hdc, cliprgn, NTGDI_RGN_MIRROR_RTL | 1 ) != 1)
{
NtGdiDeleteObjectApp( cliprgn );
cliprgn = 0;
}
else NtGdiCombineRgn( visrgn, visrgn, cliprgn, RGN_AND );
/* only those pixels in the scroll rectangle that remain in the clipping
* rect are scrolled. */
if (clip)
clip_rect = *clip;
else
NtGdiGetAppClipBox( hdc, &clip_rect );
src_rect = clip_rect;
offset_rect( &clip_rect, -dx, -dy );
intersect_rect( &src_rect, &src_rect, &clip_rect );
/* if an scroll rectangle is specified, only the pixels within that
* rectangle are scrolled */
if (scroll) intersect_rect( &src_rect, &src_rect, scroll );
/* now convert to device coordinates */
NtGdiTransformPoints( hdc, (POINT *)&src_rect, (POINT *)&src_rect, 2, NtGdiLPtoDP );
TRACE( "source rect: %s\n", wine_dbgstr_rect(&src_rect) );
/* also dx and dy */
SetRect( &offset, 0, 0, dx, dy );
NtGdiTransformPoints( hdc, (POINT *)&offset, (POINT *)&offset, 2, NtGdiLPtoDP );
dxdev = offset.right - offset.left;
dydev = offset.bottom - offset.top;
/* now intersect with the visible region to get the pixels that will actually scroll */
dstrgn = NtGdiCreateRectRgn( src_rect.left, src_rect.top, src_rect.right, src_rect.bottom );
NtGdiCombineRgn( dstrgn, dstrgn, visrgn, RGN_AND );
NtGdiOffsetRgn( dstrgn, dxdev, dydev );
NtGdiExtSelectClipRgn( hdc, dstrgn, RGN_AND );
/* compute the update areas. This is the combined clip rectangle
* minus the scrolled region, and intersected with the visible region. */
if (ret_update_rgn || update_rect)
{
/* intersect clip and scroll rectangles, allowing NULL values */
if (scroll)
{
if (clip)
intersect_rect( &clip_rect, clip, scroll );
else
clip_rect = *scroll;
}
else if (clip)
clip_rect = *clip;
else
NtGdiGetAppClipBox( hdc, &clip_rect );
/* Convert the combined clip rectangle to device coordinates */
NtGdiTransformPoints( hdc, (POINT *)&clip_rect, (POINT *)&clip_rect, 2, NtGdiLPtoDP );
if (update_rgn)
NtGdiSetRectRgn( update_rgn, clip_rect.left, clip_rect.top,
clip_rect.right, clip_rect.bottom );
else
update_rgn = NtGdiCreateRectRgn( clip_rect.left, clip_rect.top,
clip_rect.right, clip_rect.bottom );
NtGdiCombineRgn( update_rgn, update_rgn, visrgn, RGN_AND );
NtGdiCombineRgn( update_rgn, update_rgn, dstrgn, RGN_DIFF );
}
ret = user_driver->pScrollDC( hdc, dx, dy, update_rgn );
if (ret && update_rect)
{
NtGdiGetRgnBox( update_rgn, update_rect );
NtGdiTransformPoints( hdc, (POINT *)&update_rect, (POINT *)&update_rect, 2, NtGdiDPtoLP );
TRACE( "returning update_rect %s\n", wine_dbgstr_rect(update_rect) );
}
if (!ret_update_rgn) NtGdiDeleteObjectApp( update_rgn );
NtGdiExtSelectClipRgn( hdc, cliprgn, RGN_COPY );
if (cliprgn) NtGdiDeleteObjectApp( cliprgn );
NtGdiDeleteObjectApp( visrgn );
NtGdiDeleteObjectApp( dstrgn );
return ret;
}

2
dlls/win32u/win32u.spec
View File

@ -1155,7 +1155,7 @@
@ stub NtUserResolveDesktopForWOW
@ stub NtUserRestoreWindowDpiChanges
@ stub NtUserSBGetParms
@ stub NtUserScrollDC
@ stdcall NtUserScrollDC(long long long ptr ptr long ptr)
@ stub NtUserScrollWindowEx
@ stub NtUserSelectPalette
@ stub NtUserSendEventMessage

7
dlls/win32u/win32u_private.h
View File

@ -202,6 +202,8 @@ struct unix_funcs
BOOL (WINAPI *pNtUserGetUpdatedClipboardFormats)( UINT *formats, UINT size, UINT *out_size );
BOOL (WINAPI *pNtUserIsClipboardFormatAvailable)( UINT format );
UINT (WINAPI *pNtUserMapVirtualKeyEx)( UINT code, UINT type, HKL layout );
BOOL (WINAPI *pNtUserScrollDC)( HDC hdc, INT dx, INT dy, const RECT *scroll, const RECT *clip,
HRGN ret_update_rgn, RECT *update_rect );
INT (WINAPI *pNtUserToUnicodeEx)( UINT virt, UINT scan, const BYTE *state,
WCHAR *str, int size, UINT flags, HKL layout );
BOOL (WINAPI *pNtUserUnregisterHotKey)( HWND hwnd, INT id );
@ -407,4 +409,9 @@ DWORD win32u_mbtowc( CPTABLEINFO *info, WCHAR *dst, DWORD dstlen, const char *sr
DWORD win32u_wctomb( CPTABLEINFO *info, char *dst, DWORD dstlen, const WCHAR *src,
DWORD srclen ) DECLSPEC_HIDDEN;
static inline BOOL is_win9x(void)
{
return NtCurrentTeb()->Peb->OSPlatformId == VER_PLATFORM_WIN32s;
}
#endif /* __WINE_WIN32U_PRIVATE */

6
dlls/win32u/wrappers.c
View File

@ -636,6 +636,12 @@ UINT WINAPI NtUserMapVirtualKeyEx( UINT code, UINT type, HKL layout )
return unix_funcs->pNtUserMapVirtualKeyEx( code, type, layout );
}
BOOL WINAPI NtUserScrollDC( HDC hdc, INT dx, INT dy, const RECT *scroll, const RECT *clip,
HRGN ret_update_rgn, RECT *update_rect )
{
return unix_funcs->pNtUserScrollDC( hdc, dx, dy, scroll, clip, ret_update_rgn, update_rect );
}
INT WINAPI NtUserToUnicodeEx( UINT virt, UINT scan, const BYTE *state,
WCHAR *str, int size, UINT flags, HKL layout )
{

2
include/ntuser.h
View File

@ -92,6 +92,8 @@ HDESK WINAPI NtUserOpenDesktop( OBJECT_ATTRIBUTES *attr, DWORD flags, ACCESS_M
HDESK WINAPI NtUserOpenInputDesktop( DWORD flags, BOOL inherit, ACCESS_MASK access );
BOOL WINAPI NtUserRemoveClipboardFormatListener( HWND hwnd );
HANDLE WINAPI NtUserRemoveProp( HWND hwnd, const WCHAR *str );
BOOL WINAPI NtUserScrollDC( HDC hdc, INT dx, INT dy, const RECT *scroll, const RECT *clip,
HRGN ret_update_rgn, RECT *update_rect );
BOOL WINAPI NtUserSetKeyboardState( BYTE *state );
BOOL WINAPI NtUserSetProcessWindowStation( HWINSTA handle );
BOOL WINAPI NtUserSetProp( HWND hwnd, const WCHAR *str, HANDLE handle );