Sweden-Number/dlls/gdi32/objects.c

519 lines
15 KiB
C

/*
* GDI functions
*
* Copyright 1993 Alexandre Julliard
* Copyright 2021 Jacek Caban for CodeWeavers
*
* 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 "gdi_private.h"
#include "winnls.h"
#include "winternl.h"
#include "wine/rbtree.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(gdi);
struct hdc_list
{
HDC hdc;
void (*delete)( HDC hdc, HGDIOBJ handle );
struct hdc_list *next;
};
struct obj_map_entry
{
struct wine_rb_entry entry;
struct hdc_list *list;
HGDIOBJ obj;
};
static CRITICAL_SECTION obj_map_cs;
static CRITICAL_SECTION_DEBUG obj_map_debug =
{
0, 0, &obj_map_cs,
{ &obj_map_debug.ProcessLocksList, &obj_map_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": obj_map_cs") }
};
static CRITICAL_SECTION obj_map_cs = { &obj_map_debug, -1, 0, 0, 0, 0 };
static GDI_SHARED_MEMORY *get_gdi_shared(void)
{
#ifndef _WIN64
if (NtCurrentTeb()->GdiBatchCount)
{
TEB64 *teb64 = (TEB64 *)(UINT_PTR)NtCurrentTeb()->GdiBatchCount;
PEB64 *peb64 = (PEB64 *)(UINT_PTR)teb64->Peb;
return (GDI_SHARED_MEMORY *)(UINT_PTR)peb64->GdiSharedHandleTable;
}
#endif
return (GDI_SHARED_MEMORY *)NtCurrentTeb()->Peb->GdiSharedHandleTable;
}
static BOOL is_stock_object( HGDIOBJ obj )
{
unsigned int handle = HandleToULong( obj );
return !!(handle & NTGDI_HANDLE_STOCK_OBJECT);
}
static inline GDI_HANDLE_ENTRY *handle_entry( HGDIOBJ handle )
{
GDI_SHARED_MEMORY *gdi_shared = get_gdi_shared();
unsigned int idx = LOWORD(handle);
if (idx < GDI_MAX_HANDLE_COUNT && gdi_shared->Handles[idx].Type)
{
if (!HIWORD( handle ) || HIWORD( handle ) == gdi_shared->Handles[idx].Unique)
return &gdi_shared->Handles[idx];
}
if (handle) WARN( "invalid handle %p\n", handle );
return NULL;
}
static WORD get_object_type( HGDIOBJ obj )
{
GDI_HANDLE_ENTRY *entry = handle_entry( obj );
return entry ? entry->ExtType : 0;
}
void set_gdi_client_ptr( HGDIOBJ obj, void *ptr )
{
GDI_HANDLE_ENTRY *entry = handle_entry( obj );
if (entry) entry->UserPointer = (UINT_PTR)ptr;
}
void *get_gdi_client_ptr( HGDIOBJ obj, WORD type )
{
GDI_HANDLE_ENTRY *entry = handle_entry( obj );
if (!entry || (type && entry->ExtType != type) || !entry->UserPointer)
return NULL;
return (void *)(UINT_PTR)entry->UserPointer;
}
/***********************************************************************
* GetObjectType (GDI32.@)
*/
DWORD WINAPI GetObjectType( HGDIOBJ handle )
{
DWORD type = get_object_type( handle );
TRACE( "%p -> %u\n", handle, type );
switch (type)
{
case NTGDI_OBJ_PEN: return OBJ_PEN;
case NTGDI_OBJ_BRUSH: return OBJ_BRUSH;
case NTGDI_OBJ_DC: return OBJ_DC;
case NTGDI_OBJ_METADC: return OBJ_METADC;
case NTGDI_OBJ_PAL: return OBJ_PAL;
case NTGDI_OBJ_FONT: return OBJ_FONT;
case NTGDI_OBJ_BITMAP: return OBJ_BITMAP;
case NTGDI_OBJ_REGION: return OBJ_REGION;
case NTGDI_OBJ_METAFILE: return OBJ_METAFILE;
case NTGDI_OBJ_MEMDC: return OBJ_MEMDC;
case NTGDI_OBJ_EXTPEN: return OBJ_EXTPEN;
case NTGDI_OBJ_ENHMETADC: return OBJ_ENHMETADC;
case NTGDI_OBJ_ENHMETAFILE: return OBJ_ENHMETAFILE;
default:
SetLastError( ERROR_INVALID_HANDLE );
return 0;
}
}
static int obj_map_cmp( const void *key, const struct wine_rb_entry *entry )
{
struct obj_map_entry *obj_entry = WINE_RB_ENTRY_VALUE( entry, struct obj_map_entry, entry );
return HandleToLong( key ) - HandleToLong( obj_entry->obj );
};
struct wine_rb_tree obj_map = { obj_map_cmp };
/***********************************************************************
* DeleteObject (GDI32.@)
*
* Delete a Gdi object.
*/
BOOL WINAPI DeleteObject( HGDIOBJ obj )
{
struct hdc_list *hdc_list = NULL;
struct wine_rb_entry *entry;
EnterCriticalSection( &obj_map_cs );
if ((entry = wine_rb_get( &obj_map, obj )))
{
struct obj_map_entry *obj_entry = WINE_RB_ENTRY_VALUE( entry, struct obj_map_entry, entry );
wine_rb_remove( &obj_map, entry );
hdc_list = obj_entry->list;
HeapFree( GetProcessHeap(), 0, obj_entry );
}
LeaveCriticalSection( &obj_map_cs );
while (hdc_list)
{
struct hdc_list *next = hdc_list->next;
TRACE( "hdc %p has interest in %p\n", hdc_list->hdc, obj );
hdc_list->delete( hdc_list->hdc, obj );
HeapFree( GetProcessHeap(), 0, hdc_list );
hdc_list = next;
}
return NtGdiDeleteObjectApp( obj );
}
/***********************************************************************
* GDI_hdc_using_object
*
* Call this if the dc requires DeleteObject notification
*/
void GDI_hdc_using_object( HGDIOBJ obj, HDC hdc, void (*delete)( HDC hdc, HGDIOBJ handle ))
{
struct hdc_list *hdc_list;
GDI_HANDLE_ENTRY *entry;
TRACE( "obj %p hdc %p\n", obj, hdc );
EnterCriticalSection( &obj_map_cs );
if (!is_stock_object( obj ) && (entry = handle_entry( obj )))
{
struct obj_map_entry *map_entry;
struct wine_rb_entry *entry;
if (!(entry = wine_rb_get( &obj_map, obj )))
{
if (!(map_entry = HeapAlloc( GetProcessHeap(), 0, sizeof(*map_entry) )))
{
LeaveCriticalSection( &obj_map_cs );
return;
}
map_entry->obj = obj;
map_entry->list = NULL;
wine_rb_put( &obj_map, obj, &map_entry->entry );
}
else map_entry = WINE_RB_ENTRY_VALUE( entry, struct obj_map_entry, entry );
for (hdc_list = map_entry->list; hdc_list; hdc_list = hdc_list->next)
if (hdc_list->hdc == hdc) break;
if (!hdc_list)
{
if (!(hdc_list = HeapAlloc( GetProcessHeap(), 0, sizeof(*hdc_list) )))
{
LeaveCriticalSection( &obj_map_cs );
return;
}
hdc_list->hdc = hdc;
hdc_list->delete = delete;
hdc_list->next = map_entry->list;
map_entry->list = hdc_list;
}
}
LeaveCriticalSection( &obj_map_cs );
}
/***********************************************************************
* GDI_hdc_not_using_object
*
*/
void GDI_hdc_not_using_object( HGDIOBJ obj, HDC hdc )
{
struct wine_rb_entry *entry;
TRACE( "obj %p hdc %p\n", obj, hdc );
EnterCriticalSection( &obj_map_cs );
if ((entry = wine_rb_get( &obj_map, obj )))
{
struct obj_map_entry *map_entry = WINE_RB_ENTRY_VALUE( entry, struct obj_map_entry, entry );
struct hdc_list **list_ptr, *hdc_list;
for (list_ptr = &map_entry->list; *list_ptr; list_ptr = &(*list_ptr)->next)
{
if ((*list_ptr)->hdc != hdc) continue;
hdc_list = *list_ptr;
*list_ptr = hdc_list->next;
HeapFree( GetProcessHeap(), 0, hdc_list );
if (list_ptr == &map_entry->list && !*list_ptr)
{
wine_rb_remove( &obj_map, &map_entry->entry );
HeapFree( GetProcessHeap(), 0, map_entry );
}
break;
}
}
LeaveCriticalSection( &obj_map_cs );
}
/***********************************************************************
* SelectObject (GDI32.@)
*
* Select a Gdi object into a device context.
*/
HGDIOBJ WINAPI SelectObject( HDC hdc, HGDIOBJ obj )
{
DC_ATTR *dc_attr;
HGDIOBJ ret;
TRACE( "(%p,%p)\n", hdc, obj );
if (is_meta_dc( hdc )) return METADC_SelectObject( hdc, obj );
if (!(dc_attr = get_dc_attr( hdc ))) return 0;
if (dc_attr->emf && !EMFDC_SelectObject( dc_attr, obj )) return 0;
switch (get_object_type( obj ))
{
case NTGDI_OBJ_PEN:
case NTGDI_OBJ_EXTPEN:
ret = NtGdiSelectPen( hdc, obj );
break;
case NTGDI_OBJ_BRUSH:
ret = NtGdiSelectBrush( hdc, obj );
break;
case NTGDI_OBJ_FONT:
ret = NtGdiSelectFont( hdc, obj );
break;
case NTGDI_OBJ_BITMAP:
ret = NtGdiSelectBitmap( hdc, obj );
break;
case NTGDI_OBJ_REGION:
ret = ULongToHandle(SelectClipRgn( hdc, obj ));
break;
default:
return 0;
}
if (!ret) SetLastError( ERROR_INVALID_HANDLE );
return ret;
}
/***********************************************************************
* GetObjectW (GDI32.@)
*/
INT WINAPI GetObjectW( HGDIOBJ handle, INT count, void *buffer )
{
int result;
TRACE( "%p %d %p\n", handle, count, buffer );
result = NtGdiExtGetObjectW( handle, count, buffer );
if (!result && count)
{
switch(get_object_type( handle ))
{
case 0:
case NTGDI_OBJ_BITMAP:
case NTGDI_OBJ_BRUSH:
case NTGDI_OBJ_FONT:
case NTGDI_OBJ_PAL:
case NTGDI_OBJ_PEN:
case NTGDI_OBJ_EXTPEN:
break;
default:
SetLastError( ERROR_INVALID_HANDLE );
}
}
return result;
}
/***********************************************************************
* GetObjectA (GDI32.@)
*/
INT WINAPI GetObjectA( HGDIOBJ handle, INT count, void *buffer )
{
TRACE("%p %d %p\n", handle, count, buffer );
if (get_object_type( handle ) == NTGDI_OBJ_FONT)
{
LOGFONTA *lfA = buffer;
LOGFONTW lf;
if (!buffer) return sizeof(*lfA);
if (!GetObjectW( handle, sizeof(lf), &lf )) return 0;
if (count > sizeof(*lfA)) count = sizeof(*lfA);
memcpy( lfA, &lf, min( count, FIELD_OFFSET(LOGFONTA, lfFaceName) ));
if (count > FIELD_OFFSET(LOGFONTA, lfFaceName))
{
WideCharToMultiByte( CP_ACP, 0, lf.lfFaceName, -1, lfA->lfFaceName,
count - FIELD_OFFSET(LOGFONTA, lfFaceName), NULL, NULL );
if (count == sizeof(*lfA)) lfA->lfFaceName[LF_FACESIZE - 1] = 0;
}
return count;
}
return GetObjectW( handle, count, buffer );
}
/***********************************************************************
* CreatePenIndirect (GDI32.@)
*/
HPEN WINAPI CreatePenIndirect( const LOGPEN *pen )
{
return CreatePen( pen->lopnStyle, pen->lopnWidth.x, pen->lopnColor );
}
/***********************************************************************
* CreatePen (GDI32.@)
*/
HPEN WINAPI CreatePen( INT style, INT width, COLORREF color )
{
if (style < 0 || style > PS_INSIDEFRAME) style = PS_SOLID;
return NtGdiCreatePen( style, width, color, NULL );
}
/***********************************************************************
* CreateBitmapIndirect (GDI32.@)
*/
HBITMAP WINAPI CreateBitmapIndirect( const BITMAP *bmp )
{
if (!bmp || bmp->bmType)
{
SetLastError( ERROR_INVALID_PARAMETER );
return NULL;
}
return CreateBitmap( bmp->bmWidth, bmp->bmHeight, bmp->bmPlanes,
bmp->bmBitsPixel, bmp->bmBits );
}
/******************************************************************************
* CreateBitmap (GDI32.@)
*
* Creates a bitmap with the specified info.
*/
HBITMAP WINAPI CreateBitmap( INT width, INT height, UINT planes,
UINT bpp, const void *bits )
{
if (!width || !height)
return GetStockObject( STOCK_LAST + 1 ); /* default 1x1 bitmap */
return NtGdiCreateBitmap( width, height, planes, bpp, bits );
}
/******************************************************************************
* CreateDiscardableBitmap (GDI32.@)
*
* Creates a discardable bitmap.
*/
HBITMAP WINAPI CreateDiscardableBitmap( HDC hdc, INT width, INT height )
{
return CreateCompatibleBitmap( hdc, width, height );
}
/***********************************************************************
* ExtCreateRegion (GDI32.@)
*
* Creates a region as specified by the transformation data and region data.
*/
HRGN WINAPI ExtCreateRegion( const XFORM *xform, DWORD count, const RGNDATA *data )
{
if (!data)
{
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
return NtGdiExtCreateRegion( xform, count, data );
}
/***********************************************************************
* CreatePolyPolygonRgn (GDI32.@)
*/
HRGN WINAPI CreatePolyPolygonRgn( const POINT *points, const INT *counts, INT count, INT mode )
{
ULONG ret = NtGdiPolyPolyDraw( ULongToHandle(mode), points, (const UINT *)counts,
count, NtGdiPolyPolygonRgn );
return ULongToHandle( ret );
}
/***********************************************************************
* CreateRectRgnIndirect (GDI32.@)
*
* Creates a simple rectangular region.
*/
HRGN WINAPI CreateRectRgnIndirect( const RECT* rect )
{
return NtGdiCreateRectRgn( rect->left, rect->top, rect->right, rect->bottom );
}
/***********************************************************************
* CreateEllipticRgnIndirect (GDI32.@)
*
* Creates an elliptical region.
*/
HRGN WINAPI CreateEllipticRgnIndirect( const RECT *rect )
{
return NtGdiCreateEllipticRgn( rect->left, rect->top, rect->right, rect->bottom );
}
/***********************************************************************
* CreatePolygonRgn (GDI32.@)
*/
HRGN WINAPI CreatePolygonRgn( const POINT *points, INT count, INT mode )
{
return CreatePolyPolygonRgn( points, &count, 1, mode );
}
/***********************************************************************
* CreateColorSpaceA (GDI32.@)
*/
HCOLORSPACE WINAPI CreateColorSpaceA( LOGCOLORSPACEA *cs )
{
FIXME( "stub\n" );
return 0;
}
/***********************************************************************
* CreateColorSpaceW (GDI32.@)
*/
HCOLORSPACE WINAPI CreateColorSpaceW( LOGCOLORSPACEW *cs )
{
FIXME( "stub\n" );
return 0;
}
/***********************************************************************
* DeleteColorSpace (GDI32.@)
*/
BOOL WINAPI DeleteColorSpace( HCOLORSPACE cs )
{
FIXME( "stub\n" );
return TRUE;
}
/***********************************************************************
* GetColorSpace (GDI32.@)
*/
HCOLORSPACE WINAPI GetColorSpace( HDC hdc )
{
FIXME( "stub\n" );
return 0;
}
/***********************************************************************
* SetColorSpace (GDI32.@)
*/
HCOLORSPACE WINAPI SetColorSpace( HDC hdc, HCOLORSPACE cs )
{
FIXME( "stub\n" );
return cs;
}