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![Jacek Caban](/assets/img/avatar_default.png)
Signed-off-by: Jacek Caban <jacek@codeweavers.com> Signed-off-by: Huw Davies <huw@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
1241 lines
36 KiB
C
1241 lines
36 KiB
C
/*
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* GDI Device Context functions
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*
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* Copyright 1993 Alexandre Julliard
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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 <assert.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "winreg.h"
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#include "winnls.h"
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#include "winternl.h"
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#include "winerror.h"
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#include "ntgdi_private.h"
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#include "gdi_private.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(dc);
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static BOOL DC_DeleteObject( HGDIOBJ handle );
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static const struct gdi_obj_funcs dc_funcs =
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{
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NULL, /* pGetObjectW */
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NULL, /* pUnrealizeObject */
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DC_DeleteObject /* pDeleteObject */
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};
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static inline DC *get_dc_obj( HDC hdc )
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{
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DWORD type;
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DC *dc = get_any_obj_ptr( hdc, &type );
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if (!dc) return NULL;
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switch (type)
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{
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case NTGDI_OBJ_DC:
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case NTGDI_OBJ_MEMDC:
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case NTGDI_OBJ_ENHMETADC:
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return dc;
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default:
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GDI_ReleaseObj( hdc );
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SetLastError( ERROR_INVALID_HANDLE );
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return NULL;
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}
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}
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/***********************************************************************
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* set_initial_dc_state
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*/
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static void set_initial_dc_state( DC *dc )
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{
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dc->attr->wnd_org.x = 0;
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dc->attr->wnd_org.y = 0;
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dc->attr->wnd_ext.cx = 1;
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dc->attr->wnd_ext.cy = 1;
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dc->attr->vport_org.x = 0;
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dc->attr->vport_org.y = 0;
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dc->attr->vport_ext.cx = 1;
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dc->attr->vport_ext.cy = 1;
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dc->attr->miter_limit = 10.0f; /* 10.0 is the default, from MSDN */
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dc->attr->layout = 0;
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dc->attr->rop_mode = R2_COPYPEN;
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dc->attr->font_code_page = CP_ACP;
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dc->attr->poly_fill_mode = ALTERNATE;
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dc->attr->stretch_blt_mode = BLACKONWHITE;
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dc->attr->rel_abs_mode = ABSOLUTE;
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dc->attr->background_mode = OPAQUE;
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dc->attr->background_color = RGB( 255, 255, 255 );
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dc->attr->brush_color = RGB( 255, 255, 255 );
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dc->attr->pen_color = RGB( 0, 0, 0 );
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dc->attr->text_color = RGB( 0, 0, 0 );
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dc->attr->brush_org.x = 0;
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dc->attr->brush_org.y = 0;
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dc->attr->mapper_flags = 0;
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dc->attr->text_align = TA_LEFT | TA_TOP | TA_NOUPDATECP;
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dc->attr->char_extra = 0;
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dc->breakExtra = 0;
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dc->breakRem = 0;
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dc->attr->map_mode = MM_TEXT;
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dc->attr->graphics_mode = GM_COMPATIBLE;
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dc->attr->cur_pos.x = 0;
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dc->attr->cur_pos.y = 0;
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dc->attr->arc_direction = AD_COUNTERCLOCKWISE;
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dc->xformWorld2Wnd.eM11 = 1.0f;
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dc->xformWorld2Wnd.eM12 = 0.0f;
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dc->xformWorld2Wnd.eM21 = 0.0f;
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dc->xformWorld2Wnd.eM22 = 1.0f;
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dc->xformWorld2Wnd.eDx = 0.0f;
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dc->xformWorld2Wnd.eDy = 0.0f;
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dc->xformWorld2Vport = dc->xformWorld2Wnd;
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dc->xformVport2World = dc->xformWorld2Wnd;
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dc->vport2WorldValid = TRUE;
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reset_bounds( &dc->bounds );
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}
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/***********************************************************************
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* alloc_dc_ptr
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*/
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DC *alloc_dc_ptr( DWORD magic )
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{
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DC *dc;
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if (!(dc = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*dc) ))) return NULL;
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if (!(dc->attr = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*dc->attr))))
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{
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HeapFree( GetProcessHeap(), 0, dc->attr );
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return NULL;
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}
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dc->nulldrv.funcs = &null_driver;
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dc->physDev = &dc->nulldrv;
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dc->thread = GetCurrentThreadId();
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dc->refcount = 1;
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dc->hPen = GDI_inc_ref_count( get_stock_object( BLACK_PEN ));
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dc->hBrush = GDI_inc_ref_count( get_stock_object( WHITE_BRUSH ));
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dc->hFont = GDI_inc_ref_count( get_stock_object( SYSTEM_FONT ));
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dc->hPalette = get_stock_object( DEFAULT_PALETTE );
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set_initial_dc_state( dc );
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if (!(dc->hSelf = alloc_gdi_handle( &dc->obj, magic, &dc_funcs )))
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{
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HeapFree( GetProcessHeap(), 0, dc->attr );
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HeapFree( GetProcessHeap(), 0, dc );
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return NULL;
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}
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dc->attr->hdc = dc->nulldrv.hdc = dc->hSelf;
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set_gdi_client_ptr( dc->hSelf, dc->attr );
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if (!font_driver.pCreateDC( &dc->physDev, NULL, NULL, NULL, NULL ))
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{
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free_dc_ptr( dc );
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return NULL;
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}
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return dc;
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}
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/***********************************************************************
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* free_dc_state
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*/
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static void free_dc_state( DC *dc )
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{
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if (dc->hClipRgn) NtGdiDeleteObjectApp( dc->hClipRgn );
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if (dc->hMetaRgn) NtGdiDeleteObjectApp( dc->hMetaRgn );
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if (dc->hVisRgn) NtGdiDeleteObjectApp( dc->hVisRgn );
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if (dc->region) NtGdiDeleteObjectApp( dc->region );
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if (dc->path) free_gdi_path( dc->path );
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HeapFree( GetProcessHeap(), 0, dc->attr );
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HeapFree( GetProcessHeap(), 0, dc );
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}
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/***********************************************************************
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* free_dc_ptr
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*/
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void free_dc_ptr( DC *dc )
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{
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assert( dc->refcount == 1 );
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while (dc->physDev != &dc->nulldrv)
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{
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PHYSDEV physdev = dc->physDev;
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dc->physDev = physdev->next;
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physdev->funcs->pDeleteDC( physdev );
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}
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GDI_dec_ref_count( dc->hPen );
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GDI_dec_ref_count( dc->hBrush );
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GDI_dec_ref_count( dc->hFont );
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if (dc->hBitmap) GDI_dec_ref_count( dc->hBitmap );
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free_gdi_handle( dc->hSelf );
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free_dc_state( dc );
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}
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/***********************************************************************
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* get_dc_ptr
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*
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* Retrieve a DC pointer but release the GDI lock.
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*/
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DC *get_dc_ptr( HDC hdc )
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{
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DC *dc = get_dc_obj( hdc );
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if (!dc) return NULL;
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if (dc->attr->disabled)
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{
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GDI_ReleaseObj( hdc );
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return NULL;
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}
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if (!InterlockedCompareExchange( &dc->refcount, 1, 0 ))
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{
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dc->thread = GetCurrentThreadId();
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}
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else if (dc->thread != GetCurrentThreadId())
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{
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WARN( "dc %p belongs to thread %04x\n", hdc, dc->thread );
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GDI_ReleaseObj( hdc );
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return NULL;
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}
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else InterlockedIncrement( &dc->refcount );
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GDI_ReleaseObj( hdc );
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return dc;
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}
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/***********************************************************************
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* release_dc_ptr
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*/
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void release_dc_ptr( DC *dc )
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{
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LONG ref;
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dc->thread = 0;
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ref = InterlockedDecrement( &dc->refcount );
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assert( ref >= 0 );
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if (ref) dc->thread = GetCurrentThreadId(); /* we still own it */
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}
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/***********************************************************************
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* update_dc
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*
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* Make sure the DC vis region is up to date.
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* This function may call up to USER so the GDI lock should _not_
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* be held when calling it.
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*/
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void update_dc( DC *dc )
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{
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if (InterlockedExchange( &dc->dirty, 0 ) && dc->hookProc)
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dc->hookProc( dc->hSelf, DCHC_INVALIDVISRGN, dc->dwHookData, 0 );
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}
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static void set_bk_color( DC *dc, COLORREF color )
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{
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PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetBkColor );
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dc->attr->background_color = physdev->funcs->pSetBkColor( physdev, color );
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}
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static void set_text_color( DC *dc, COLORREF color )
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{
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PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetTextColor );
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dc->attr->text_color = physdev->funcs->pSetTextColor( physdev, color );
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}
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/***********************************************************************
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* DC_InitDC
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*
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* Setup device-specific DC values for a newly created DC.
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*/
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void DC_InitDC( DC* dc )
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{
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PHYSDEV physdev = GET_DC_PHYSDEV( dc, pRealizeDefaultPalette );
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physdev->funcs->pRealizeDefaultPalette( physdev );
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set_text_color( dc, dc->attr->text_color );
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set_bk_color( dc, dc->attr->background_color );
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NtGdiSelectPen( dc->hSelf, dc->hPen );
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NtGdiSelectBrush( dc->hSelf, dc->hBrush );
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NtGdiSelectFont( dc->hSelf, dc->hFont );
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update_dc_clipping( dc );
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NtGdiSetVirtualResolution( dc->hSelf, 0, 0, 0, 0 );
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physdev = GET_DC_PHYSDEV( dc, pSetBoundsRect );
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physdev->funcs->pSetBoundsRect( physdev, &dc->bounds, dc->bounds_enabled ? DCB_ENABLE : DCB_DISABLE );
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}
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/***********************************************************************
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* DC_InvertXform
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*
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* Computes the inverse of the transformation xformSrc and stores it to
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* xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
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* is singular.
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*/
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static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
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{
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double determinant;
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determinant = xformSrc->eM11*xformSrc->eM22 -
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xformSrc->eM12*xformSrc->eM21;
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if (determinant > -1e-12 && determinant < 1e-12)
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return FALSE;
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xformDest->eM11 = xformSrc->eM22 / determinant;
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xformDest->eM12 = -xformSrc->eM12 / determinant;
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xformDest->eM21 = -xformSrc->eM21 / determinant;
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xformDest->eM22 = xformSrc->eM11 / determinant;
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xformDest->eDx = -xformSrc->eDx * xformDest->eM11 -
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xformSrc->eDy * xformDest->eM21;
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xformDest->eDy = -xformSrc->eDx * xformDest->eM12 -
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xformSrc->eDy * xformDest->eM22;
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return TRUE;
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}
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/* Construct a transformation to do the window-to-viewport conversion */
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static void construct_window_to_viewport(DC *dc, XFORM *xform)
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{
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double scaleX, scaleY;
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scaleX = (double)dc->attr->vport_ext.cx / (double)dc->attr->wnd_ext.cx;
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scaleY = (double)dc->attr->vport_ext.cy / (double)dc->attr->wnd_ext.cy;
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if (dc->attr->layout & LAYOUT_RTL) scaleX = -scaleX;
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xform->eM11 = scaleX;
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xform->eM12 = 0.0;
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xform->eM21 = 0.0;
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xform->eM22 = scaleY;
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xform->eDx = (double)dc->attr->vport_org.x - scaleX * (double)dc->attr->wnd_org.x;
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xform->eDy = (double)dc->attr->vport_org.y - scaleY * (double)dc->attr->wnd_org.y;
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if (dc->attr->layout & LAYOUT_RTL)
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xform->eDx = dc->attr->vis_rect.right - dc->attr->vis_rect.left - 1 - xform->eDx;
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}
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/***********************************************************************
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* linear_xform_cmp
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*
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* Compares the linear transform portion of two XFORMs (i.e. the 2x2 submatrix).
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* Returns 0 if they match.
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*/
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static inline int linear_xform_cmp( const XFORM *a, const XFORM *b )
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{
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return memcmp( a, b, FIELD_OFFSET( XFORM, eDx ) );
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}
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/***********************************************************************
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* DC_UpdateXforms
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*
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* Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
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* fields of the specified DC by creating a transformation that
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* represents the current mapping mode and combining it with the DC's
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* world transform. This function should be called whenever the
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* parameters associated with the mapping mode (window and viewport
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* extents and origins) or the world transform change.
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*/
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void DC_UpdateXforms( DC *dc )
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{
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XFORM xformWnd2Vport, oldworld2vport;
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construct_window_to_viewport(dc, &xformWnd2Vport);
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oldworld2vport = dc->xformWorld2Vport;
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/* Combine with the world transformation */
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combine_transform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd, &xformWnd2Vport );
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/* Create inverse of world-to-viewport transformation */
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dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
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&dc->xformVport2World );
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/* Reselect the font and pen back into the dc so that the size
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gets updated. */
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if (linear_xform_cmp( &oldworld2vport, &dc->xformWorld2Vport ) &&
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GetObjectType( dc->hSelf ) != OBJ_METADC)
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{
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NtGdiSelectFont(dc->hSelf, dc->hFont);
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NtGdiSelectPen(dc->hSelf, dc->hPen);
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}
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}
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/***********************************************************************
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* reset_dc_state
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*/
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static BOOL reset_dc_state( HDC hdc )
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{
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DC *dc, *dcs, *next;
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if (!(dc = get_dc_ptr( hdc ))) return FALSE;
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set_initial_dc_state( dc );
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set_bk_color( dc, RGB( 255, 255, 255 ));
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set_text_color( dc, RGB( 0, 0, 0 ));
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NtGdiSelectBrush( hdc, get_stock_object( WHITE_BRUSH ));
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NtGdiSelectFont( hdc, get_stock_object( SYSTEM_FONT ));
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NtGdiSelectPen( hdc, get_stock_object( BLACK_PEN ));
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NtGdiSetVirtualResolution( hdc, 0, 0, 0, 0 );
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GDISelectPalette( hdc, get_stock_object( DEFAULT_PALETTE ), FALSE );
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NtGdiSetBoundsRect( hdc, NULL, DCB_DISABLE );
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NtGdiAbortPath( hdc );
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if (dc->hClipRgn) NtGdiDeleteObjectApp( dc->hClipRgn );
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if (dc->hMetaRgn) NtGdiDeleteObjectApp( dc->hMetaRgn );
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dc->hClipRgn = 0;
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dc->hMetaRgn = 0;
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update_dc_clipping( dc );
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for (dcs = dc->saved_dc; dcs; dcs = next)
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{
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next = dcs->saved_dc;
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free_dc_state( dcs );
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}
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dc->saved_dc = NULL;
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dc->attr->save_level = 0;
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release_dc_ptr( dc );
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return TRUE;
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}
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/***********************************************************************
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* DC_DeleteObject
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*/
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static BOOL DC_DeleteObject( HGDIOBJ handle )
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{
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DC *dc;
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TRACE( "%p\n", handle );
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GDI_CheckNotLock();
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if (!(dc = get_dc_ptr( handle ))) return FALSE;
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if (dc->refcount != 1)
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{
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FIXME( "not deleting busy DC %p refcount %u\n", dc->hSelf, dc->refcount );
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release_dc_ptr( dc );
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return FALSE;
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}
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/* Call hook procedure to check whether is it OK to delete this DC */
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if (dc->hookProc && !dc->hookProc( dc->hSelf, DCHC_DELETEDC, dc->dwHookData, 0 ))
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{
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release_dc_ptr( dc );
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return TRUE;
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}
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reset_dc_state( handle );
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free_dc_ptr( dc );
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return TRUE;
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}
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/***********************************************************************
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* NtGdiSaveDC (win32u.@)
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*/
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INT WINAPI NtGdiSaveDC( HDC hdc )
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{
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DC *dc, *newdc;
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INT ret;
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if (!(dc = get_dc_ptr( hdc ))) return 0;
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if (!(newdc = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*newdc ))))
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{
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release_dc_ptr( dc );
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return 0;
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}
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if (!(newdc->attr = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*newdc->attr) )))
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{
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HeapFree( GetProcessHeap(), 0, newdc );
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release_dc_ptr( dc );
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return 0;
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}
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*newdc->attr = *dc->attr;
|
|
newdc->hPen = dc->hPen;
|
|
newdc->hBrush = dc->hBrush;
|
|
newdc->hFont = dc->hFont;
|
|
newdc->hBitmap = dc->hBitmap;
|
|
newdc->hPalette = dc->hPalette;
|
|
newdc->breakExtra = dc->breakExtra;
|
|
newdc->breakRem = dc->breakRem;
|
|
newdc->xformWorld2Wnd = dc->xformWorld2Wnd;
|
|
newdc->xformWorld2Vport = dc->xformWorld2Vport;
|
|
newdc->xformVport2World = dc->xformVport2World;
|
|
newdc->vport2WorldValid = dc->vport2WorldValid;
|
|
|
|
/* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
|
|
|
|
if (dc->hClipRgn)
|
|
{
|
|
newdc->hClipRgn = NtGdiCreateRectRgn( 0, 0, 0, 0 );
|
|
NtGdiCombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
|
|
}
|
|
if (dc->hMetaRgn)
|
|
{
|
|
newdc->hMetaRgn = NtGdiCreateRectRgn( 0, 0, 0, 0 );
|
|
NtGdiCombineRgn( newdc->hMetaRgn, dc->hMetaRgn, 0, RGN_COPY );
|
|
}
|
|
|
|
if (!PATH_SavePath( newdc, dc ))
|
|
{
|
|
release_dc_ptr( dc );
|
|
free_dc_state( newdc );
|
|
return 0;
|
|
}
|
|
|
|
newdc->saved_dc = dc->saved_dc;
|
|
dc->saved_dc = newdc;
|
|
ret = ++dc->attr->save_level;
|
|
release_dc_ptr( dc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtGdiRestoreDC (win32u.@)
|
|
*/
|
|
BOOL WINAPI NtGdiRestoreDC( HDC hdc, INT level )
|
|
{
|
|
DC *dc, *dcs, *first_dcs;
|
|
INT save_level;
|
|
|
|
TRACE("%p %d\n", hdc, level );
|
|
if (!(dc = get_dc_ptr( hdc ))) return FALSE;
|
|
update_dc( dc );
|
|
|
|
/* find the state level to restore */
|
|
if (abs(level) > dc->attr->save_level || level == 0)
|
|
{
|
|
release_dc_ptr( dc );
|
|
return FALSE;
|
|
}
|
|
|
|
if (level < 0) level = dc->attr->save_level + level + 1;
|
|
first_dcs = dc->saved_dc;
|
|
for (dcs = first_dcs, save_level = dc->attr->save_level; save_level > level; save_level--)
|
|
dcs = dcs->saved_dc;
|
|
|
|
/* restore the state */
|
|
|
|
if (!PATH_RestorePath( dc, dcs ))
|
|
{
|
|
release_dc_ptr( dc );
|
|
return FALSE;
|
|
}
|
|
|
|
dc->attr->layout = dcs->attr->layout;
|
|
dc->attr->rop_mode = dcs->attr->rop_mode;
|
|
dc->attr->poly_fill_mode = dcs->attr->poly_fill_mode;
|
|
dc->attr->stretch_blt_mode = dcs->attr->stretch_blt_mode;
|
|
dc->attr->rel_abs_mode = dcs->attr->rel_abs_mode;
|
|
dc->attr->background_mode = dcs->attr->background_mode;
|
|
dc->attr->background_color = dcs->attr->background_color;
|
|
dc->attr->text_color = dcs->attr->text_color;
|
|
dc->attr->brush_color = dcs->attr->brush_color;
|
|
dc->attr->pen_color = dcs->attr->pen_color;
|
|
dc->attr->brush_org = dcs->attr->brush_org;
|
|
dc->attr->mapper_flags = dcs->attr->mapper_flags;
|
|
dc->attr->text_align = dcs->attr->text_align;
|
|
dc->attr->char_extra = dcs->attr->char_extra;
|
|
dc->attr->map_mode = dcs->attr->map_mode;
|
|
dc->attr->graphics_mode = dcs->attr->graphics_mode;
|
|
dc->attr->cur_pos = dcs->attr->cur_pos;
|
|
dc->attr->arc_direction = dcs->attr->arc_direction;
|
|
dc->attr->wnd_org = dcs->attr->wnd_org;
|
|
dc->attr->wnd_ext = dcs->attr->wnd_ext;
|
|
dc->attr->vport_org = dcs->attr->vport_org;
|
|
dc->attr->vport_ext = dcs->attr->vport_ext;
|
|
dc->attr->virtual_res = dcs->attr->virtual_res;
|
|
dc->attr->virtual_size = dcs->attr->virtual_size;
|
|
|
|
dc->breakExtra = dcs->breakExtra;
|
|
dc->breakRem = dcs->breakRem;
|
|
dc->xformWorld2Wnd = dcs->xformWorld2Wnd;
|
|
dc->xformWorld2Vport = dcs->xformWorld2Vport;
|
|
dc->xformVport2World = dcs->xformVport2World;
|
|
dc->vport2WorldValid = dcs->vport2WorldValid;
|
|
|
|
if (dcs->hClipRgn)
|
|
{
|
|
if (!dc->hClipRgn) dc->hClipRgn = NtGdiCreateRectRgn( 0, 0, 0, 0 );
|
|
NtGdiCombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
|
|
}
|
|
else
|
|
{
|
|
if (dc->hClipRgn) NtGdiDeleteObjectApp( dc->hClipRgn );
|
|
dc->hClipRgn = 0;
|
|
}
|
|
if (dcs->hMetaRgn)
|
|
{
|
|
if (!dc->hMetaRgn) dc->hMetaRgn = NtGdiCreateRectRgn( 0, 0, 0, 0 );
|
|
NtGdiCombineRgn( dc->hMetaRgn, dcs->hMetaRgn, 0, RGN_COPY );
|
|
}
|
|
else
|
|
{
|
|
if (dc->hMetaRgn) NtGdiDeleteObjectApp( dc->hMetaRgn );
|
|
dc->hMetaRgn = 0;
|
|
}
|
|
DC_UpdateXforms( dc );
|
|
update_dc_clipping( dc );
|
|
|
|
NtGdiSelectBitmap( hdc, dcs->hBitmap );
|
|
NtGdiSelectBrush( hdc, dcs->hBrush );
|
|
NtGdiSelectFont( hdc, dcs->hFont );
|
|
NtGdiSelectPen( hdc, dcs->hPen );
|
|
set_bk_color( dc, dcs->attr->background_color);
|
|
set_text_color( dc, dcs->attr->text_color);
|
|
GDISelectPalette( hdc, dcs->hPalette, FALSE );
|
|
|
|
dc->saved_dc = dcs->saved_dc;
|
|
dcs->saved_dc = 0;
|
|
dc->attr->save_level = save_level - 1;
|
|
|
|
/* now destroy all the saved DCs */
|
|
|
|
while (first_dcs)
|
|
{
|
|
DC *next = first_dcs->saved_dc;
|
|
free_dc_state( first_dcs );
|
|
first_dcs = next;
|
|
}
|
|
release_dc_ptr( dc );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CreateDCW (GDI32.@)
|
|
*/
|
|
HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
|
|
const DEVMODEW *initData )
|
|
{
|
|
const WCHAR *display, *p;
|
|
HDC hdc;
|
|
DC * dc;
|
|
const struct gdi_dc_funcs *funcs;
|
|
WCHAR buf[300];
|
|
|
|
GDI_CheckNotLock();
|
|
|
|
if (!device || !DRIVER_GetDriverName( device, buf, 300 ))
|
|
{
|
|
if (!driver)
|
|
{
|
|
ERR( "no device found for %s\n", debugstr_w(device) );
|
|
return 0;
|
|
}
|
|
lstrcpyW(buf, driver);
|
|
}
|
|
|
|
if (!(funcs = DRIVER_load_driver( buf )))
|
|
{
|
|
ERR( "no driver found for %s\n", debugstr_w(buf) );
|
|
return 0;
|
|
}
|
|
if (!(dc = alloc_dc_ptr( NTGDI_OBJ_DC ))) return 0;
|
|
hdc = dc->hSelf;
|
|
|
|
dc->hBitmap = GDI_inc_ref_count( get_stock_object( DEFAULT_BITMAP ));
|
|
|
|
TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
|
|
debugstr_w(driver), debugstr_w(device), debugstr_w(output), dc->hSelf );
|
|
|
|
if (funcs->pCreateDC)
|
|
{
|
|
if (!funcs->pCreateDC( &dc->physDev, buf, device, output, initData ))
|
|
{
|
|
WARN("creation aborted by device\n" );
|
|
free_dc_ptr( dc );
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (is_display_device( driver ))
|
|
display = driver;
|
|
else if (is_display_device( device ))
|
|
display = device;
|
|
else
|
|
display = NULL;
|
|
|
|
if (display)
|
|
{
|
|
/* Copy only the display name. For example, \\.\DISPLAY1 in \\.\DISPLAY1\Monitor0 */
|
|
p = display + 12;
|
|
while (iswdigit( *p ))
|
|
++p;
|
|
lstrcpynW( dc->display, display, p - display + 1 );
|
|
dc->display[p - display] = '\0';
|
|
}
|
|
|
|
dc->attr->vis_rect.left = 0;
|
|
dc->attr->vis_rect.top = 0;
|
|
dc->attr->vis_rect.right = GetDeviceCaps( hdc, DESKTOPHORZRES );
|
|
dc->attr->vis_rect.bottom = GetDeviceCaps( hdc, DESKTOPVERTRES );
|
|
|
|
DC_InitDC( dc );
|
|
release_dc_ptr( dc );
|
|
return hdc;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtGdiCreateCompatibleDC (win32u.@)
|
|
*/
|
|
HDC WINAPI NtGdiCreateCompatibleDC( HDC hdc )
|
|
{
|
|
DC *dc, *origDC;
|
|
HDC ret;
|
|
const struct gdi_dc_funcs *funcs;
|
|
PHYSDEV physDev = NULL;
|
|
|
|
GDI_CheckNotLock();
|
|
|
|
if (hdc)
|
|
{
|
|
if (!(origDC = get_dc_ptr( hdc ))) return 0;
|
|
physDev = GET_DC_PHYSDEV( origDC, pCreateCompatibleDC );
|
|
funcs = physDev->funcs;
|
|
release_dc_ptr( origDC );
|
|
}
|
|
else funcs = DRIVER_load_driver( L"display" );
|
|
|
|
if (!(dc = alloc_dc_ptr( NTGDI_OBJ_MEMDC ))) return 0;
|
|
|
|
TRACE("(%p): returning %p\n", hdc, dc->hSelf );
|
|
|
|
dc->hBitmap = GDI_inc_ref_count( get_stock_object( DEFAULT_BITMAP ));
|
|
dc->attr->vis_rect.left = 0;
|
|
dc->attr->vis_rect.top = 0;
|
|
dc->attr->vis_rect.right = 1;
|
|
dc->attr->vis_rect.bottom = 1;
|
|
dc->device_rect = dc->attr->vis_rect;
|
|
|
|
ret = dc->hSelf;
|
|
|
|
if (funcs->pCreateCompatibleDC && !funcs->pCreateCompatibleDC( physDev, &dc->physDev ))
|
|
{
|
|
WARN("creation aborted by device\n");
|
|
free_dc_ptr( dc );
|
|
return 0;
|
|
}
|
|
|
|
if (!dib_driver.pCreateDC( &dc->physDev, NULL, NULL, NULL, NULL ))
|
|
{
|
|
free_dc_ptr( dc );
|
|
return 0;
|
|
}
|
|
physDev = GET_DC_PHYSDEV( dc, pSelectBitmap );
|
|
physDev->funcs->pSelectBitmap( physDev, dc->hBitmap );
|
|
|
|
DC_InitDC( dc );
|
|
release_dc_ptr( dc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtGdiResetDC (win32u.@)
|
|
*/
|
|
BOOL WINAPI NtGdiResetDC( HDC hdc, const DEVMODEW *devmode, BOOL *banding,
|
|
DRIVER_INFO_2W *driver_info, void *dev )
|
|
{
|
|
DC *dc;
|
|
BOOL ret = FALSE;
|
|
|
|
if ((dc = get_dc_ptr( hdc )))
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pResetDC );
|
|
ret = physdev->funcs->pResetDC( physdev, devmode ) != 0;
|
|
if (ret) /* reset the visible region */
|
|
{
|
|
dc->dirty = 0;
|
|
dc->attr->vis_rect.left = 0;
|
|
dc->attr->vis_rect.top = 0;
|
|
dc->attr->vis_rect.right = GetDeviceCaps( hdc, DESKTOPHORZRES );
|
|
dc->attr->vis_rect.bottom = GetDeviceCaps( hdc, DESKTOPVERTRES );
|
|
if (dc->hVisRgn) NtGdiDeleteObjectApp( dc->hVisRgn );
|
|
dc->hVisRgn = 0;
|
|
update_dc_clipping( dc );
|
|
}
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtGdiGetDeviceCaps (win32u.@)
|
|
*/
|
|
INT WINAPI NtGdiGetDeviceCaps( HDC hdc, INT cap )
|
|
{
|
|
DC *dc;
|
|
INT ret = 0;
|
|
|
|
if ((dc = get_dc_ptr( hdc )))
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pGetDeviceCaps );
|
|
ret = physdev->funcs->pGetDeviceCaps( physdev, cap );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
static BOOL set_graphics_mode( DC *dc, int mode )
|
|
{
|
|
if (mode == dc->attr->graphics_mode) return TRUE;
|
|
if (mode <= 0 || mode > GM_LAST) return FALSE;
|
|
|
|
/* One would think that setting the graphics mode to GM_COMPATIBLE
|
|
* would also reset the world transformation matrix to the unity
|
|
* matrix. However, in Windows, this is not the case. This doesn't
|
|
* make a lot of sense to me, but that's the way it is.
|
|
*/
|
|
dc->attr->graphics_mode = mode;
|
|
|
|
/* font metrics depend on the graphics mode */
|
|
NtGdiSelectFont(dc->hSelf, dc->hFont);
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtGdiGetAndSetDCDword (win32u.@)
|
|
*/
|
|
BOOL WINAPI NtGdiGetAndSetDCDword( HDC hdc, UINT method, DWORD value, DWORD *prev_value )
|
|
{
|
|
PHYSDEV physdev;
|
|
BOOL ret = TRUE;
|
|
DC *dc;
|
|
|
|
if (!(dc = get_dc_ptr( hdc ))) return 0;
|
|
|
|
switch (method)
|
|
{
|
|
case NtGdiSetMapMode:
|
|
*prev_value = dc->attr->map_mode;
|
|
ret = set_map_mode( dc, value );
|
|
break;
|
|
|
|
case NtGdiSetBkColor:
|
|
*prev_value = dc->attr->background_color;
|
|
set_bk_color( dc, value );
|
|
break;
|
|
|
|
case NtGdiSetTextColor:
|
|
*prev_value = dc->attr->text_color;
|
|
set_text_color( dc, value );
|
|
break;
|
|
|
|
case NtGdiSetDCBrushColor:
|
|
physdev = GET_DC_PHYSDEV( dc, pSetDCBrushColor );
|
|
*prev_value = dc->attr->brush_color;
|
|
value = physdev->funcs->pSetDCBrushColor( physdev, value );
|
|
if (value != CLR_INVALID) dc->attr->brush_color = value;
|
|
break;
|
|
|
|
case NtGdiSetDCPenColor:
|
|
physdev = GET_DC_PHYSDEV( dc, pSetDCPenColor );
|
|
*prev_value = dc->attr->pen_color;
|
|
value = physdev->funcs->pSetDCPenColor( physdev, value );
|
|
if (value != CLR_INVALID) dc->attr->pen_color = value;
|
|
break;
|
|
|
|
case NtGdiSetGraphicsMode:
|
|
if (prev_value) *prev_value = dc->attr->graphics_mode;
|
|
ret = set_graphics_mode( dc, value );
|
|
break;
|
|
|
|
default:
|
|
WARN( "unknown method %u\n", method );
|
|
ret = FALSE;
|
|
break;
|
|
}
|
|
|
|
release_dc_ptr( dc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtGdiGetTransform (win32u.@)
|
|
*
|
|
* Undocumented
|
|
*
|
|
* Returns one of the co-ordinate space transforms
|
|
*
|
|
* PARAMS
|
|
* hdc [I] Device context.
|
|
* which [I] Which xform to return:
|
|
* 0x203 World -> Page transform (that set by SetWorldTransform).
|
|
* 0x304 Page -> Device transform (the mapping mode transform).
|
|
* 0x204 World -> Device transform (the combination of the above two).
|
|
* 0x402 Device -> World transform (the inversion of the above).
|
|
* xform [O] The xform.
|
|
*
|
|
*/
|
|
BOOL WINAPI NtGdiGetTransform( HDC hdc, DWORD which, XFORM *xform )
|
|
{
|
|
BOOL ret = TRUE;
|
|
DC *dc = get_dc_ptr( hdc );
|
|
if (!dc) return FALSE;
|
|
|
|
switch(which)
|
|
{
|
|
case 0x203:
|
|
*xform = dc->xformWorld2Wnd;
|
|
break;
|
|
|
|
case 0x304:
|
|
construct_window_to_viewport(dc, xform);
|
|
break;
|
|
|
|
case 0x204:
|
|
*xform = dc->xformWorld2Vport;
|
|
break;
|
|
|
|
case 0x402:
|
|
*xform = dc->xformVport2World;
|
|
break;
|
|
|
|
default:
|
|
FIXME("Unknown code %x\n", which);
|
|
ret = FALSE;
|
|
}
|
|
|
|
release_dc_ptr( dc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetDCHook (win32u.@)
|
|
*
|
|
* Note: this doesn't exist in Win32, we add it here because user32 needs it.
|
|
*/
|
|
BOOL WINAPI SetDCHook( HDC hdc, DCHOOKPROC hookProc, DWORD_PTR dwHookData )
|
|
{
|
|
DC *dc = get_dc_ptr( hdc );
|
|
|
|
if (!dc) return FALSE;
|
|
|
|
dc->dwHookData = dwHookData;
|
|
dc->hookProc = hookProc;
|
|
release_dc_ptr( dc );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* GetDCHook (win32u.@)
|
|
*
|
|
* Note: this doesn't exist in Win32, we add it here because user32 needs it.
|
|
*/
|
|
DWORD_PTR WINAPI GetDCHook( HDC hdc, DCHOOKPROC *proc )
|
|
{
|
|
DC *dc = get_dc_ptr( hdc );
|
|
DWORD_PTR ret;
|
|
|
|
if (!dc) return 0;
|
|
if (proc) *proc = dc->hookProc;
|
|
ret = dc->dwHookData;
|
|
release_dc_ptr( dc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetHookFlags (win32u.@)
|
|
*
|
|
* Note: this doesn't exist in Win32, we add it here because user32 needs it.
|
|
*/
|
|
WORD WINAPI SetHookFlags( HDC hdc, WORD flags )
|
|
{
|
|
DC *dc = get_dc_obj( hdc ); /* not get_dc_ptr, this needs to work from any thread */
|
|
LONG ret = 0;
|
|
|
|
if (!dc) return 0;
|
|
|
|
TRACE("hDC %p, flags %04x\n",hdc,flags);
|
|
|
|
if (flags & DCHF_INVALIDATEVISRGN)
|
|
ret = InterlockedExchange( &dc->dirty, 1 );
|
|
else if (flags & DCHF_VALIDATEVISRGN || !flags)
|
|
ret = InterlockedExchange( &dc->dirty, 0 );
|
|
|
|
if (flags & DCHF_DISABLEDC)
|
|
ret = InterlockedExchange( &dc->attr->disabled, 1 );
|
|
else if (flags & DCHF_ENABLEDC)
|
|
ret = InterlockedExchange( &dc->attr->disabled, 0 );
|
|
|
|
GDI_ReleaseObj( hdc );
|
|
|
|
if (flags & DCHF_RESETDC) ret = reset_dc_state( hdc );
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* NtGdiGetDeviceGammaRamp (win32u.@)
|
|
*/
|
|
BOOL WINAPI NtGdiGetDeviceGammaRamp( HDC hdc, void *ptr )
|
|
{
|
|
BOOL ret = FALSE;
|
|
DC *dc = get_dc_ptr( hdc );
|
|
|
|
TRACE("%p, %p\n", hdc, ptr);
|
|
if( dc )
|
|
{
|
|
if (GetObjectType( hdc ) != OBJ_MEMDC)
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pGetDeviceGammaRamp );
|
|
ret = physdev->funcs->pGetDeviceGammaRamp( physdev, ptr );
|
|
}
|
|
else SetLastError( ERROR_INVALID_PARAMETER );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static BOOL check_gamma_ramps(void *ptr)
|
|
{
|
|
WORD *ramp = ptr;
|
|
|
|
while (ramp < (WORD*)ptr + 3 * 256)
|
|
{
|
|
float r_x, r_y, r_lx, r_ly, r_d, r_v, r_e, g_avg, g_min, g_max;
|
|
unsigned i, f, l, g_n, c;
|
|
|
|
f = ramp[0];
|
|
l = ramp[255];
|
|
if (f >= l)
|
|
{
|
|
TRACE("inverted or flat gamma ramp (%d->%d), rejected\n", f, l);
|
|
return FALSE;
|
|
}
|
|
r_d = l - f;
|
|
g_min = g_max = g_avg = 0.0;
|
|
|
|
/* check gamma ramp entries to estimate the gamma */
|
|
TRACE("analyzing gamma ramp (%d->%d)\n", f, l);
|
|
for (i=1, g_n=0; i<255; i++)
|
|
{
|
|
if (ramp[i] < f || ramp[i] > l)
|
|
{
|
|
TRACE("strange gamma ramp ([%d]=%d for %d->%d), rejected\n", i, ramp[i], f, l);
|
|
return FALSE;
|
|
}
|
|
c = ramp[i] - f;
|
|
if (!c) continue; /* avoid log(0) */
|
|
|
|
/* normalize entry values into 0..1 range */
|
|
r_x = i/255.0; r_y = c / r_d;
|
|
/* compute logarithms of values */
|
|
r_lx = log(r_x); r_ly = log(r_y);
|
|
/* compute gamma for this entry */
|
|
r_v = r_ly / r_lx;
|
|
/* compute differential (error estimate) for this entry */
|
|
/* some games use table-based logarithms that magnifies the error by 128 */
|
|
r_e = -r_lx * 128 / (c * r_lx * r_lx);
|
|
|
|
/* compute min & max while compensating for estimated error */
|
|
if (!g_n || g_min > (r_v + r_e)) g_min = r_v + r_e;
|
|
if (!g_n || g_max < (r_v - r_e)) g_max = r_v - r_e;
|
|
|
|
/* add to average */
|
|
g_avg += r_v;
|
|
g_n++;
|
|
}
|
|
|
|
if (!g_n)
|
|
{
|
|
TRACE("no gamma data, shouldn't happen\n");
|
|
return FALSE;
|
|
}
|
|
g_avg /= g_n;
|
|
TRACE("low bias is %d, high is %d, gamma is %5.3f\n", f, 65535-l, g_avg);
|
|
|
|
/* check that the gamma is reasonably uniform across the ramp */
|
|
if (g_max - g_min > 12.8)
|
|
{
|
|
TRACE("ramp not uniform (max=%f, min=%f, avg=%f), rejected\n", g_max, g_min, g_avg);
|
|
return FALSE;
|
|
}
|
|
|
|
/* check that the gamma is not too bright */
|
|
if (g_avg < 0.2)
|
|
{
|
|
TRACE("too bright gamma ( %5.3f), rejected\n", g_avg);
|
|
return FALSE;
|
|
}
|
|
|
|
ramp += 256;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* NtGdiSetDeviceGammaRamp (win32u.@)
|
|
*/
|
|
BOOL WINAPI NtGdiSetDeviceGammaRamp( HDC hdc, void *ptr )
|
|
{
|
|
BOOL ret = FALSE;
|
|
DC *dc = get_dc_ptr( hdc );
|
|
|
|
TRACE( "%p, %p\n", hdc, ptr );
|
|
if( dc )
|
|
{
|
|
if (GetObjectType( hdc ) != OBJ_MEMDC)
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDeviceGammaRamp );
|
|
|
|
if (check_gamma_ramps(ptr))
|
|
ret = physdev->funcs->pSetDeviceGammaRamp( physdev, ptr );
|
|
}
|
|
else SetLastError( ERROR_INVALID_PARAMETER );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtGdiGetBoundsRect (win32u.@)
|
|
*/
|
|
UINT WINAPI NtGdiGetBoundsRect( HDC hdc, RECT *rect, UINT flags )
|
|
{
|
|
PHYSDEV physdev;
|
|
RECT device_rect;
|
|
UINT ret;
|
|
DC *dc = get_dc_ptr( hdc );
|
|
|
|
if ( !dc ) return 0;
|
|
|
|
physdev = GET_DC_PHYSDEV( dc, pGetBoundsRect );
|
|
ret = physdev->funcs->pGetBoundsRect( physdev, &device_rect, DCB_RESET );
|
|
if (!ret)
|
|
{
|
|
release_dc_ptr( dc );
|
|
return 0;
|
|
}
|
|
if (dc->bounds_enabled && ret == DCB_SET) add_bounds_rect( &dc->bounds, &device_rect );
|
|
|
|
if (rect)
|
|
{
|
|
if (is_rect_empty( &dc->bounds ))
|
|
{
|
|
rect->left = rect->top = rect->right = rect->bottom = 0;
|
|
ret = DCB_RESET;
|
|
}
|
|
else
|
|
{
|
|
*rect = dc->bounds;
|
|
rect->left = max( rect->left, 0 );
|
|
rect->top = max( rect->top, 0 );
|
|
rect->right = min( rect->right, dc->attr->vis_rect.right - dc->attr->vis_rect.left );
|
|
rect->bottom = min( rect->bottom, dc->attr->vis_rect.bottom - dc->attr->vis_rect.top );
|
|
ret = DCB_SET;
|
|
}
|
|
dp_to_lp( dc, (POINT *)rect, 2 );
|
|
}
|
|
else ret = 0;
|
|
|
|
if (flags & DCB_RESET) reset_bounds( &dc->bounds );
|
|
release_dc_ptr( dc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtGdiSetBoundsRect (win32u.@)
|
|
*/
|
|
UINT WINAPI NtGdiSetBoundsRect( HDC hdc, const RECT *rect, UINT flags )
|
|
{
|
|
PHYSDEV physdev;
|
|
UINT ret;
|
|
DC *dc;
|
|
|
|
if ((flags & DCB_ENABLE) && (flags & DCB_DISABLE)) return 0;
|
|
if (!(dc = get_dc_ptr( hdc ))) return 0;
|
|
|
|
physdev = GET_DC_PHYSDEV( dc, pSetBoundsRect );
|
|
ret = physdev->funcs->pSetBoundsRect( physdev, &dc->bounds, flags );
|
|
if (!ret)
|
|
{
|
|
release_dc_ptr( dc );
|
|
return 0;
|
|
}
|
|
|
|
ret = (dc->bounds_enabled ? DCB_ENABLE : DCB_DISABLE) |
|
|
(is_rect_empty( &dc->bounds ) ? ret & DCB_SET : DCB_SET);
|
|
|
|
if (flags & DCB_RESET) reset_bounds( &dc->bounds );
|
|
|
|
if ((flags & DCB_ACCUMULATE) && rect)
|
|
{
|
|
RECT rc = *rect;
|
|
|
|
lp_to_dp( dc, (POINT *)&rc, 2 );
|
|
add_bounds_rect( &dc->bounds, &rc );
|
|
}
|
|
|
|
if (flags & DCB_ENABLE) dc->bounds_enabled = TRUE;
|
|
if (flags & DCB_DISABLE) dc->bounds_enabled = FALSE;
|
|
|
|
release_dc_ptr( dc );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtGdiSetLayout (win32u.@)
|
|
*
|
|
* Sets left->right or right->left text layout flags of a dc.
|
|
*
|
|
*/
|
|
DWORD WINAPI NtGdiSetLayout( HDC hdc, LONG wox, DWORD layout )
|
|
{
|
|
DWORD old_layout = GDI_ERROR;
|
|
DC *dc;
|
|
|
|
if ((dc = get_dc_ptr( hdc )))
|
|
{
|
|
old_layout = dc->attr->layout;
|
|
dc->attr->layout = layout;
|
|
if (layout != old_layout)
|
|
{
|
|
if (layout & LAYOUT_RTL) dc->attr->map_mode = MM_ANISOTROPIC;
|
|
DC_UpdateXforms( dc );
|
|
}
|
|
release_dc_ptr( dc );
|
|
}
|
|
|
|
TRACE("hdc : %p, old layout : %08x, new layout : %08x\n", hdc, old_layout, layout);
|
|
|
|
return old_layout;
|
|
}
|