315 lines
9.1 KiB
C
315 lines
9.1 KiB
C
/*
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* GDI functions
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*
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* Copyright 1993 Alexandre Julliard
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* Copyright 2021 Jacek Caban for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winnls.h"
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#include "ntgdi.h"
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#include "winternl.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(gdi);
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static GDI_SHARED_MEMORY *get_gdi_shared(void)
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{
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#ifndef _WIN64
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if (NtCurrentTeb()->GdiBatchCount)
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{
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TEB64 *teb64 = (TEB64 *)(UINT_PTR)NtCurrentTeb()->GdiBatchCount;
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PEB64 *peb64 = (PEB64 *)(UINT_PTR)teb64->Peb;
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return (GDI_SHARED_MEMORY *)(UINT_PTR)peb64->GdiSharedHandleTable;
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}
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#endif
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return (GDI_SHARED_MEMORY *)NtCurrentTeb()->Peb->GdiSharedHandleTable;
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}
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static inline GDI_HANDLE_ENTRY *handle_entry( HGDIOBJ handle )
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{
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GDI_SHARED_MEMORY *gdi_shared = get_gdi_shared();
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unsigned int idx = LOWORD(handle);
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if (idx < GDI_MAX_HANDLE_COUNT && gdi_shared->Handles[idx].Type)
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{
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if (!HIWORD( handle ) || HIWORD( handle ) == gdi_shared->Handles[idx].Unique)
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return &gdi_shared->Handles[idx];
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}
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if (handle) WARN( "invalid handle %p\n", handle );
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return NULL;
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}
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static WORD get_object_type( HGDIOBJ obj )
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{
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GDI_HANDLE_ENTRY *entry = handle_entry( obj );
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return entry ? entry->ExtType : 0;
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}
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void set_gdi_client_ptr( HGDIOBJ obj, void *ptr )
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{
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GDI_HANDLE_ENTRY *entry = handle_entry( obj );
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if (entry) entry->UserPointer = (UINT_PTR)ptr;
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}
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void *get_gdi_client_ptr( HGDIOBJ obj, WORD type )
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{
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GDI_HANDLE_ENTRY *entry = handle_entry( obj );
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if (!entry || entry->ExtType != type || !entry->UserPointer)
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return NULL;
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return (void *)(UINT_PTR)entry->UserPointer;
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}
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/***********************************************************************
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* GetObjectType (GDI32.@)
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*/
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DWORD WINAPI GetObjectType( HGDIOBJ handle )
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{
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DWORD type = get_object_type( handle );
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TRACE( "%p -> %u\n", handle, type );
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switch (type)
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{
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case NTGDI_OBJ_PEN: return OBJ_PEN;
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case NTGDI_OBJ_BRUSH: return OBJ_BRUSH;
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case NTGDI_OBJ_DC: return OBJ_DC;
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case NTGDI_OBJ_METADC: return OBJ_METADC;
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case NTGDI_OBJ_PAL: return OBJ_PAL;
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case NTGDI_OBJ_FONT: return OBJ_FONT;
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case NTGDI_OBJ_BITMAP: return OBJ_BITMAP;
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case NTGDI_OBJ_REGION: return OBJ_REGION;
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case NTGDI_OBJ_METAFILE: return OBJ_METAFILE;
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case NTGDI_OBJ_MEMDC: return OBJ_MEMDC;
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case NTGDI_OBJ_EXTPEN: return OBJ_EXTPEN;
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case NTGDI_OBJ_ENHMETADC: return OBJ_ENHMETADC;
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case NTGDI_OBJ_ENHMETAFILE: return OBJ_ENHMETAFILE;
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default:
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SetLastError( ERROR_INVALID_HANDLE );
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return 0;
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}
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}
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/***********************************************************************
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* DeleteObject (GDI32.@)
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*
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* Delete a Gdi object.
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*/
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BOOL WINAPI DeleteObject( HGDIOBJ obj )
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{
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return NtGdiDeleteObjectApp( obj );
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}
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/***********************************************************************
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* SelectObject (GDI32.@)
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*
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* Select a Gdi object into a device context.
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*/
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HGDIOBJ WINAPI SelectObject( HDC hdc, HGDIOBJ obj )
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{
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HGDIOBJ ret;
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TRACE( "(%p,%p)\n", hdc, obj );
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switch (get_object_type( obj ))
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{
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case NTGDI_OBJ_PEN:
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case NTGDI_OBJ_EXTPEN:
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ret = NtGdiSelectPen( hdc, obj );
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break;
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case NTGDI_OBJ_BRUSH:
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ret = NtGdiSelectBrush( hdc, obj );
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break;
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case NTGDI_OBJ_FONT:
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ret = NtGdiSelectFont( hdc, obj );
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break;
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case NTGDI_OBJ_BITMAP:
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ret = NtGdiSelectBitmap( hdc, obj );
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break;
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case NTGDI_OBJ_REGION:
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ret = ULongToHandle(SelectClipRgn( hdc, obj ));
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break;
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default:
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return 0;
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}
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if (!ret) SetLastError( ERROR_INVALID_HANDLE );
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return ret;
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}
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/***********************************************************************
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* GetObjectW (GDI32.@)
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*/
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INT WINAPI GetObjectW( HGDIOBJ handle, INT count, void *buffer )
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{
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int result;
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TRACE( "%p %d %p\n", handle, count, buffer );
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result = NtGdiExtGetObjectW( handle, count, buffer );
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if (!result && count)
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{
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switch(get_object_type( handle ))
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{
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case 0:
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case NTGDI_OBJ_BITMAP:
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case NTGDI_OBJ_BRUSH:
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case NTGDI_OBJ_FONT:
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case NTGDI_OBJ_PAL:
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case NTGDI_OBJ_PEN:
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case NTGDI_OBJ_EXTPEN:
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break;
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default:
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SetLastError( ERROR_INVALID_HANDLE );
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}
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}
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return result;
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}
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/***********************************************************************
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* GetObjectA (GDI32.@)
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*/
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INT WINAPI GetObjectA( HGDIOBJ handle, INT count, void *buffer )
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{
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TRACE("%p %d %p\n", handle, count, buffer );
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if (get_object_type( handle ) == NTGDI_OBJ_FONT)
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{
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LOGFONTA *lfA = buffer;
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LOGFONTW lf;
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if (!buffer) return sizeof(*lfA);
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if (!GetObjectW( handle, sizeof(lf), &lf )) return 0;
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if (count > sizeof(*lfA)) count = sizeof(*lfA);
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memcpy( lfA, &lf, min( count, FIELD_OFFSET(LOGFONTA, lfFaceName) ));
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if (count > FIELD_OFFSET(LOGFONTA, lfFaceName))
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{
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WideCharToMultiByte( CP_ACP, 0, lf.lfFaceName, -1, lfA->lfFaceName,
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count - FIELD_OFFSET(LOGFONTA, lfFaceName), NULL, NULL );
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if (count == sizeof(*lfA)) lfA->lfFaceName[LF_FACESIZE - 1] = 0;
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}
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return count;
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}
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return GetObjectW( handle, count, buffer );
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}
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/***********************************************************************
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* CreatePenIndirect (GDI32.@)
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*/
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HPEN WINAPI CreatePenIndirect( const LOGPEN *pen )
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{
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return CreatePen( pen->lopnStyle, pen->lopnWidth.x, pen->lopnColor );
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}
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/***********************************************************************
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* CreatePen (GDI32.@)
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*/
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HPEN WINAPI CreatePen( INT style, INT width, COLORREF color )
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{
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if (style < 0 || style > PS_INSIDEFRAME) style = PS_SOLID;
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return NtGdiCreatePen( style, width, color, NULL );
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}
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/***********************************************************************
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* CreateBitmapIndirect (GDI32.@)
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*/
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HBITMAP WINAPI CreateBitmapIndirect( const BITMAP *bmp )
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{
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if (!bmp || bmp->bmType)
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{
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SetLastError( ERROR_INVALID_PARAMETER );
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return NULL;
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}
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return CreateBitmap( bmp->bmWidth, bmp->bmHeight, bmp->bmPlanes,
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bmp->bmBitsPixel, bmp->bmBits );
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}
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/******************************************************************************
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* CreateBitmap (GDI32.@)
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*
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* Creates a bitmap with the specified info.
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*/
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HBITMAP WINAPI CreateBitmap( INT width, INT height, UINT planes,
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UINT bpp, const void *bits )
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{
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if (!width || !height)
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return GetStockObject( STOCK_LAST + 1 ); /* default 1x1 bitmap */
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return NtGdiCreateBitmap( width, height, planes, bpp, bits );
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}
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/******************************************************************************
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* CreateDiscardableBitmap (GDI32.@)
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*
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* Creates a discardable bitmap.
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*/
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HBITMAP WINAPI CreateDiscardableBitmap( HDC hdc, INT width, INT height )
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{
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return CreateCompatibleBitmap( hdc, width, height );
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}
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/***********************************************************************
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* ExtCreateRegion (GDI32.@)
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*
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* Creates a region as specified by the transformation data and region data.
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*/
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HRGN WINAPI ExtCreateRegion( const XFORM *xform, DWORD count, const RGNDATA *data )
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{
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if (!data)
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{
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SetLastError( ERROR_INVALID_PARAMETER );
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return 0;
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}
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return NtGdiExtCreateRegion( xform, count, data );
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}
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/***********************************************************************
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* CreateRectRgnIndirect (GDI32.@)
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*
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* Creates a simple rectangular region.
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*/
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HRGN WINAPI CreateRectRgnIndirect( const RECT* rect )
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{
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return NtGdiCreateRectRgn( rect->left, rect->top, rect->right, rect->bottom );
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}
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/***********************************************************************
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* CreateEllipticRgnIndirect (GDI32.@)
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*
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* Creates an elliptical region.
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*/
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HRGN WINAPI CreateEllipticRgnIndirect( const RECT *rect )
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{
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return NtGdiCreateEllipticRgn( rect->left, rect->top, rect->right, rect->bottom );
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}
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/***********************************************************************
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* CreatePolygonRgn (GDI32.@)
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*/
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HRGN WINAPI CreatePolygonRgn( const POINT *points, INT count, INT mode )
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{
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return CreatePolyPolygonRgn( points, &count, 1, mode );
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}
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