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wine/dlls/gdi32/dc.c
Alexandre Julliard cc973b0cdc gdi32: Avoid calling get_dc_ptr on a null handle.
2009-12-01 15:10:37 +01:00

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/*
* GDI Device Context functions
*
* Copyright 1993 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <assert.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winreg.h"
#include "winternl.h"
#include "winerror.h"
#include "wownt32.h"
#include "gdi_private.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(dc);
static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
static BOOL DC_DeleteObject( HGDIOBJ handle );
static const struct gdi_obj_funcs dc_funcs =
{
NULL, /* pSelectObject */
NULL, /* pGetObjectA */
NULL, /* pGetObjectW */
NULL, /* pUnrealizeObject */
DC_DeleteObject /* pDeleteObject */
};
static inline DC *get_dc_obj( HDC hdc )
{
DC *dc = GDI_GetObjPtr( hdc, 0 );
if (!dc) return NULL;
if ((dc->header.type != OBJ_DC) &&
(dc->header.type != OBJ_MEMDC) &&
(dc->header.type != OBJ_METADC) &&
(dc->header.type != OBJ_ENHMETADC))
{
GDI_ReleaseObj( hdc );
SetLastError( ERROR_INVALID_HANDLE );
dc = NULL;
}
return dc;
}
/***********************************************************************
* alloc_dc_ptr
*/
DC *alloc_dc_ptr( const DC_FUNCTIONS *funcs, WORD magic )
{
DC *dc;
if (!(dc = HeapAlloc( GetProcessHeap(), 0, sizeof(*dc) ))) return NULL;
dc->funcs = funcs;
dc->physDev = NULL;
dc->thread = GetCurrentThreadId();
dc->refcount = 1;
dc->dirty = 0;
dc->saveLevel = 0;
dc->saved_dc = 0;
dc->dwHookData = 0;
dc->hookProc = NULL;
dc->wndOrgX = 0;
dc->wndOrgY = 0;
dc->wndExtX = 1;
dc->wndExtY = 1;
dc->vportOrgX = 0;
dc->vportOrgY = 0;
dc->vportExtX = 1;
dc->vportExtY = 1;
dc->miterLimit = 10.0f; /* 10.0 is the default, from MSDN */
dc->flags = 0;
dc->layout = 0;
dc->hClipRgn = 0;
dc->hMetaRgn = 0;
dc->hMetaClipRgn = 0;
dc->hVisRgn = 0;
dc->hPen = GDI_inc_ref_count( GetStockObject( BLACK_PEN ));
dc->hBrush = GDI_inc_ref_count( GetStockObject( WHITE_BRUSH ));
dc->hFont = GDI_inc_ref_count( GetStockObject( SYSTEM_FONT ));
dc->hBitmap = 0;
dc->hDevice = 0;
dc->hPalette = GetStockObject( DEFAULT_PALETTE );
dc->gdiFont = 0;
dc->font_code_page = CP_ACP;
dc->ROPmode = R2_COPYPEN;
dc->polyFillMode = ALTERNATE;
dc->stretchBltMode = BLACKONWHITE;
dc->relAbsMode = ABSOLUTE;
dc->backgroundMode = OPAQUE;
dc->backgroundColor = RGB( 255, 255, 255 );
dc->dcBrushColor = RGB( 255, 255, 255 );
dc->dcPenColor = RGB( 0, 0, 0 );
dc->textColor = RGB( 0, 0, 0 );
dc->brushOrgX = 0;
dc->brushOrgY = 0;
dc->textAlign = TA_LEFT | TA_TOP | TA_NOUPDATECP;
dc->charExtra = 0;
dc->breakExtra = 0;
dc->breakRem = 0;
dc->MapMode = MM_TEXT;
dc->GraphicsMode = GM_COMPATIBLE;
dc->pAbortProc = NULL;
dc->CursPosX = 0;
dc->CursPosY = 0;
dc->ArcDirection = AD_COUNTERCLOCKWISE;
dc->xformWorld2Wnd.eM11 = 1.0f;
dc->xformWorld2Wnd.eM12 = 0.0f;
dc->xformWorld2Wnd.eM21 = 0.0f;
dc->xformWorld2Wnd.eM22 = 1.0f;
dc->xformWorld2Wnd.eDx = 0.0f;
dc->xformWorld2Wnd.eDy = 0.0f;
dc->xformWorld2Vport = dc->xformWorld2Wnd;
dc->xformVport2World = dc->xformWorld2Wnd;
dc->vport2WorldValid = TRUE;
dc->BoundsRect.left = 0;
dc->BoundsRect.top = 0;
dc->BoundsRect.right = 0;
dc->BoundsRect.bottom = 0;
PATH_InitGdiPath(&dc->path);
if (!(dc->hSelf = alloc_gdi_handle( &dc->header, magic, &dc_funcs )))
{
HeapFree( GetProcessHeap(), 0, dc );
dc = NULL;
}
return dc;
}
/***********************************************************************
* free_dc_ptr
*/
BOOL free_dc_ptr( DC *dc )
{
assert( dc->refcount == 1 );
if (free_gdi_handle( dc->hSelf ) != dc) return FALSE; /* shouldn't happen */
if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
if (dc->hMetaClipRgn) DeleteObject( dc->hMetaClipRgn );
if (dc->hVisRgn) DeleteObject( dc->hVisRgn );
PATH_DestroyGdiPath( &dc->path );
return HeapFree( GetProcessHeap(), 0, dc );
}
/***********************************************************************
* get_dc_ptr
*
* Retrieve a DC pointer but release the GDI lock.
*/
DC *get_dc_ptr( HDC hdc )
{
DC *dc = get_dc_obj( hdc );
if (!dc) return NULL;
if (!InterlockedCompareExchange( &dc->refcount, 1, 0 ))
{
dc->thread = GetCurrentThreadId();
}
else if (dc->thread != GetCurrentThreadId())
{
WARN( "dc %p belongs to thread %04x\n", hdc, dc->thread );
GDI_ReleaseObj( hdc );
return NULL;
}
else InterlockedIncrement( &dc->refcount );
GDI_ReleaseObj( hdc );
return dc;
}
/***********************************************************************
* release_dc_ptr
*/
void release_dc_ptr( DC *dc )
{
LONG ref;
dc->thread = 0;
ref = InterlockedDecrement( &dc->refcount );
assert( ref >= 0 );
if (ref) dc->thread = GetCurrentThreadId(); /* we still own it */
}
/***********************************************************************
* update_dc
*
* Make sure the DC vis region is up to date.
* This function may call up to USER so the GDI lock should _not_
* be held when calling it.
*/
void update_dc( DC *dc )
{
if (InterlockedExchange( &dc->dirty, 0 ) && dc->hookProc)
dc->hookProc( dc->hSelf, DCHC_INVALIDVISRGN, dc->dwHookData, 0 );
}
/***********************************************************************
* DC_DeleteObject
*/
static BOOL DC_DeleteObject( HGDIOBJ handle )
{
return DeleteDC( handle );
}
/***********************************************************************
* DC_InitDC
*
* Setup device-specific DC values for a newly created DC.
*/
void DC_InitDC( DC* dc )
{
if (dc->funcs->pRealizeDefaultPalette) dc->funcs->pRealizeDefaultPalette( dc->physDev );
SetTextColor( dc->hSelf, dc->textColor );
SetBkColor( dc->hSelf, dc->backgroundColor );
SelectObject( dc->hSelf, dc->hPen );
SelectObject( dc->hSelf, dc->hBrush );
SelectObject( dc->hSelf, dc->hFont );
CLIPPING_UpdateGCRegion( dc );
SetVirtualResolution( dc->hSelf, 0, 0, 0, 0 );
}
/***********************************************************************
* DC_InvertXform
*
* Computes the inverse of the transformation xformSrc and stores it to
* xformDest. Returns TRUE if successful or FALSE if the xformSrc matrix
* is singular.
*/
static BOOL DC_InvertXform( const XFORM *xformSrc, XFORM *xformDest )
{
double determinant;
determinant = xformSrc->eM11*xformSrc->eM22 -
xformSrc->eM12*xformSrc->eM21;
if (determinant > -1e-12 && determinant < 1e-12)
return FALSE;
xformDest->eM11 = xformSrc->eM22 / determinant;
xformDest->eM12 = -xformSrc->eM12 / determinant;
xformDest->eM21 = -xformSrc->eM21 / determinant;
xformDest->eM22 = xformSrc->eM11 / determinant;
xformDest->eDx = -xformSrc->eDx * xformDest->eM11 -
xformSrc->eDy * xformDest->eM21;
xformDest->eDy = -xformSrc->eDx * xformDest->eM12 -
xformSrc->eDy * xformDest->eM22;
return TRUE;
}
/* Construct a transformation to do the window-to-viewport conversion */
static void construct_window_to_viewport(DC *dc, XFORM *xform)
{
double scaleX, scaleY;
scaleX = (double)dc->vportExtX / (double)dc->wndExtX;
scaleY = (double)dc->vportExtY / (double)dc->wndExtY;
xform->eM11 = scaleX;
xform->eM12 = 0.0;
xform->eM21 = 0.0;
xform->eM22 = scaleY;
xform->eDx = (double)dc->vportOrgX - scaleX * (double)dc->wndOrgX;
xform->eDy = (double)dc->vportOrgY - scaleY * (double)dc->wndOrgY;
}
/***********************************************************************
* DC_UpdateXforms
*
* Updates the xformWorld2Vport, xformVport2World and vport2WorldValid
* fields of the specified DC by creating a transformation that
* represents the current mapping mode and combining it with the DC's
* world transform. This function should be called whenever the
* parameters associated with the mapping mode (window and viewport
* extents and origins) or the world transform change.
*/
void DC_UpdateXforms( DC *dc )
{
XFORM xformWnd2Vport, oldworld2vport;
construct_window_to_viewport(dc, &xformWnd2Vport);
oldworld2vport = dc->xformWorld2Vport;
/* Combine with the world transformation */
CombineTransform( &dc->xformWorld2Vport, &dc->xformWorld2Wnd,
&xformWnd2Vport );
/* Create inverse of world-to-viewport transformation */
dc->vport2WorldValid = DC_InvertXform( &dc->xformWorld2Vport,
&dc->xformVport2World );
/* Reselect the font and pen back into the dc so that the size
gets updated. */
if (memcmp(&oldworld2vport, &dc->xformWorld2Vport, sizeof(oldworld2vport)) &&
!GdiIsMetaFileDC(dc->hSelf))
{
SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_FONT));
SelectObject(dc->hSelf, GetCurrentObject(dc->hSelf, OBJ_PEN));
}
}
/***********************************************************************
* save_dc_state
*/
INT save_dc_state( HDC hdc )
{
DC * newdc, * dc;
INT ret;
if (!(dc = get_dc_ptr( hdc ))) return 0;
if (!(newdc = HeapAlloc( GetProcessHeap(), 0, sizeof(*newdc ))))
{
release_dc_ptr( dc );
return 0;
}
newdc->flags = dc->flags | DC_SAVED;
newdc->layout = dc->layout;
newdc->hPen = dc->hPen;
newdc->hBrush = dc->hBrush;
newdc->hFont = dc->hFont;
newdc->hBitmap = dc->hBitmap;
newdc->hDevice = dc->hDevice;
newdc->hPalette = dc->hPalette;
newdc->ROPmode = dc->ROPmode;
newdc->polyFillMode = dc->polyFillMode;
newdc->stretchBltMode = dc->stretchBltMode;
newdc->relAbsMode = dc->relAbsMode;
newdc->backgroundMode = dc->backgroundMode;
newdc->backgroundColor = dc->backgroundColor;
newdc->textColor = dc->textColor;
newdc->dcBrushColor = dc->dcBrushColor;
newdc->dcPenColor = dc->dcPenColor;
newdc->brushOrgX = dc->brushOrgX;
newdc->brushOrgY = dc->brushOrgY;
newdc->textAlign = dc->textAlign;
newdc->charExtra = dc->charExtra;
newdc->breakExtra = dc->breakExtra;
newdc->breakRem = dc->breakRem;
newdc->MapMode = dc->MapMode;
newdc->GraphicsMode = dc->GraphicsMode;
newdc->CursPosX = dc->CursPosX;
newdc->CursPosY = dc->CursPosY;
newdc->ArcDirection = dc->ArcDirection;
newdc->xformWorld2Wnd = dc->xformWorld2Wnd;
newdc->xformWorld2Vport = dc->xformWorld2Vport;
newdc->xformVport2World = dc->xformVport2World;
newdc->vport2WorldValid = dc->vport2WorldValid;
newdc->wndOrgX = dc->wndOrgX;
newdc->wndOrgY = dc->wndOrgY;
newdc->wndExtX = dc->wndExtX;
newdc->wndExtY = dc->wndExtY;
newdc->vportOrgX = dc->vportOrgX;
newdc->vportOrgY = dc->vportOrgY;
newdc->vportExtX = dc->vportExtX;
newdc->vportExtY = dc->vportExtY;
newdc->virtual_res = dc->virtual_res;
newdc->virtual_size = dc->virtual_size;
newdc->BoundsRect = dc->BoundsRect;
newdc->gdiFont = dc->gdiFont;
newdc->thread = GetCurrentThreadId();
newdc->refcount = 1;
newdc->saveLevel = 0;
newdc->saved_dc = 0;
PATH_InitGdiPath( &newdc->path );
newdc->pAbortProc = NULL;
newdc->hookProc = NULL;
if (!(newdc->hSelf = alloc_gdi_handle( &newdc->header, dc->header.type, &dc_funcs )))
{
HeapFree( GetProcessHeap(), 0, newdc );
release_dc_ptr( dc );
return 0;
}
/* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
newdc->hVisRgn = 0;
newdc->hClipRgn = 0;
newdc->hMetaRgn = 0;
newdc->hMetaClipRgn = 0;
if (dc->hClipRgn)
{
newdc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
CombineRgn( newdc->hClipRgn, dc->hClipRgn, 0, RGN_COPY );
}
if (dc->hMetaRgn)
{
newdc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
CombineRgn( newdc->hMetaRgn, dc->hMetaRgn, 0, RGN_COPY );
}
/* don't bother recomputing hMetaClipRgn, we'll do that in SetDCState */
if (!PATH_AssignGdiPath( &newdc->path, &dc->path ))
{
release_dc_ptr( dc );
free_dc_ptr( newdc );
return 0;
}
newdc->saved_dc = dc->saved_dc;
dc->saved_dc = newdc->hSelf;
ret = ++dc->saveLevel;
release_dc_ptr( newdc );
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* restore_dc_state
*/
BOOL restore_dc_state( HDC hdc, INT level )
{
HDC hdcs, first_dcs;
DC *dc, *dcs;
INT save_level;
if (!(dc = get_dc_ptr( hdc ))) return FALSE;
/* find the state level to restore */
if (abs(level) > dc->saveLevel || level == 0)
{
release_dc_ptr( dc );
return FALSE;
}
if (level < 0) level = dc->saveLevel + level + 1;
first_dcs = dc->saved_dc;
for (hdcs = first_dcs, save_level = dc->saveLevel; save_level > level; save_level--)
{
if (!(dcs = get_dc_ptr( hdcs )))
{
release_dc_ptr( dc );
return FALSE;
}
hdcs = dcs->saved_dc;
release_dc_ptr( dcs );
}
/* restore the state */
if (!(dcs = get_dc_ptr( hdcs )))
{
release_dc_ptr( dc );
return FALSE;
}
if (!PATH_AssignGdiPath( &dc->path, &dcs->path ))
{
release_dc_ptr( dcs );
release_dc_ptr( dc );
return FALSE;
}
dc->flags = dcs->flags & ~DC_SAVED;
dc->layout = dcs->layout;
dc->hDevice = dcs->hDevice;
dc->ROPmode = dcs->ROPmode;
dc->polyFillMode = dcs->polyFillMode;
dc->stretchBltMode = dcs->stretchBltMode;
dc->relAbsMode = dcs->relAbsMode;
dc->backgroundMode = dcs->backgroundMode;
dc->backgroundColor = dcs->backgroundColor;
dc->textColor = dcs->textColor;
dc->dcBrushColor = dcs->dcBrushColor;
dc->dcPenColor = dcs->dcPenColor;
dc->brushOrgX = dcs->brushOrgX;
dc->brushOrgY = dcs->brushOrgY;
dc->textAlign = dcs->textAlign;
dc->charExtra = dcs->charExtra;
dc->breakExtra = dcs->breakExtra;
dc->breakRem = dcs->breakRem;
dc->MapMode = dcs->MapMode;
dc->GraphicsMode = dcs->GraphicsMode;
dc->CursPosX = dcs->CursPosX;
dc->CursPosY = dcs->CursPosY;
dc->ArcDirection = dcs->ArcDirection;
dc->xformWorld2Wnd = dcs->xformWorld2Wnd;
dc->xformWorld2Vport = dcs->xformWorld2Vport;
dc->xformVport2World = dcs->xformVport2World;
dc->vport2WorldValid = dcs->vport2WorldValid;
dc->BoundsRect = dcs->BoundsRect;
dc->wndOrgX = dcs->wndOrgX;
dc->wndOrgY = dcs->wndOrgY;
dc->wndExtX = dcs->wndExtX;
dc->wndExtY = dcs->wndExtY;
dc->vportOrgX = dcs->vportOrgX;
dc->vportOrgY = dcs->vportOrgY;
dc->vportExtX = dcs->vportExtX;
dc->vportExtY = dcs->vportExtY;
dc->virtual_res = dcs->virtual_res;
dc->virtual_size = dcs->virtual_size;
if (dcs->hClipRgn)
{
if (!dc->hClipRgn) dc->hClipRgn = CreateRectRgn( 0, 0, 0, 0 );
CombineRgn( dc->hClipRgn, dcs->hClipRgn, 0, RGN_COPY );
}
else
{
if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
dc->hClipRgn = 0;
}
if (dcs->hMetaRgn)
{
if (!dc->hMetaRgn) dc->hMetaRgn = CreateRectRgn( 0, 0, 0, 0 );
CombineRgn( dc->hMetaRgn, dcs->hMetaRgn, 0, RGN_COPY );
}
else
{
if (dc->hMetaRgn) DeleteObject( dc->hMetaRgn );
dc->hMetaRgn = 0;
}
CLIPPING_UpdateGCRegion( dc );
SelectObject( hdc, dcs->hBitmap );
SelectObject( hdc, dcs->hBrush );
SelectObject( hdc, dcs->hFont );
SelectObject( hdc, dcs->hPen );
SetBkColor( hdc, dcs->backgroundColor);
SetTextColor( hdc, dcs->textColor);
GDISelectPalette( hdc, dcs->hPalette, FALSE );
dc->saved_dc = dcs->saved_dc;
dcs->saved_dc = 0;
dc->saveLevel = save_level - 1;
release_dc_ptr( dcs );
/* now destroy all the saved DCs */
while (first_dcs)
{
if (!(dcs = get_dc_ptr( first_dcs ))) break;
hdcs = dcs->saved_dc;
free_dc_ptr( dcs );
first_dcs = hdcs;
}
release_dc_ptr( dc );
return TRUE;
}
/***********************************************************************
* SaveDC (GDI32.@)
*/
INT WINAPI SaveDC( HDC hdc )
{
DC * dc;
INT ret;
if (!(dc = get_dc_ptr( hdc ))) return 0;
if(dc->funcs->pSaveDC)
ret = dc->funcs->pSaveDC( dc->physDev );
else
ret = save_dc_state( hdc );
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* RestoreDC (GDI32.@)
*/
BOOL WINAPI RestoreDC( HDC hdc, INT level )
{
DC *dc;
BOOL success;
TRACE("%p %d\n", hdc, level );
if (!(dc = get_dc_ptr( hdc ))) return FALSE;
update_dc( dc );
if(dc->funcs->pRestoreDC)
success = dc->funcs->pRestoreDC( dc->physDev, level );
else
success = restore_dc_state( hdc, level );
release_dc_ptr( dc );
return success;
}
/***********************************************************************
* CreateDCW (GDI32.@)
*/
HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
const DEVMODEW *initData )
{
HDC hdc;
DC * dc;
const DC_FUNCTIONS *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;
}
strcpyW(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( funcs, OBJ_DC ))) goto error;
hdc = dc->hSelf;
dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
if (!(dc->hVisRgn = CreateRectRgn( 0, 0, 1, 1 ))) goto error;
TRACE("(driver=%s, device=%s, output=%s): returning %p\n",
debugstr_w(driver), debugstr_w(device), debugstr_w(output), dc->hSelf );
if (dc->funcs->pCreateDC &&
!dc->funcs->pCreateDC( hdc, &dc->physDev, buf, device, output, initData ))
{
WARN("creation aborted by device\n" );
goto error;
}
SetRectRgn( dc->hVisRgn, 0, 0,
GetDeviceCaps( hdc, DESKTOPHORZRES ), GetDeviceCaps( hdc, DESKTOPVERTRES ) );
DC_InitDC( dc );
release_dc_ptr( dc );
return hdc;
error:
if (dc) free_dc_ptr( dc );
DRIVER_release_driver( funcs );
return 0;
}
/***********************************************************************
* CreateDCA (GDI32.@)
*/
HDC WINAPI CreateDCA( LPCSTR driver, LPCSTR device, LPCSTR output,
const DEVMODEA *initData )
{
UNICODE_STRING driverW, deviceW, outputW;
DEVMODEW *initDataW;
HDC ret;
if (driver) RtlCreateUnicodeStringFromAsciiz(&driverW, driver);
else driverW.Buffer = NULL;
if (device) RtlCreateUnicodeStringFromAsciiz(&deviceW, device);
else deviceW.Buffer = NULL;
if (output) RtlCreateUnicodeStringFromAsciiz(&outputW, output);
else outputW.Buffer = NULL;
initDataW = NULL;
if (initData)
{
/* don't convert initData for DISPLAY driver, it's not used */
if (!driverW.Buffer || strcmpiW( driverW.Buffer, displayW ))
initDataW = GdiConvertToDevmodeW(initData);
}
ret = CreateDCW( driverW.Buffer, deviceW.Buffer, outputW.Buffer, initDataW );
RtlFreeUnicodeString(&driverW);
RtlFreeUnicodeString(&deviceW);
RtlFreeUnicodeString(&outputW);
HeapFree(GetProcessHeap(), 0, initDataW);
return ret;
}
/***********************************************************************
* CreateICA (GDI32.@)
*/
HDC WINAPI CreateICA( LPCSTR driver, LPCSTR device, LPCSTR output,
const DEVMODEA* initData )
{
/* Nothing special yet for ICs */
return CreateDCA( driver, device, output, initData );
}
/***********************************************************************
* CreateICW (GDI32.@)
*/
HDC WINAPI CreateICW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
const DEVMODEW* initData )
{
/* Nothing special yet for ICs */
return CreateDCW( driver, device, output, initData );
}
/***********************************************************************
* CreateCompatibleDC (GDI32.@)
*/
HDC WINAPI CreateCompatibleDC( HDC hdc )
{
DC *dc, *origDC;
HDC ret;
const DC_FUNCTIONS *funcs = NULL;
PHYSDEV physDev = NULL;
GDI_CheckNotLock();
if (hdc)
{
if (!(origDC = get_dc_ptr( hdc ))) return 0;
if (GetObjectType( hdc ) == OBJ_DC)
{
funcs = origDC->funcs;
physDev = origDC->physDev;
}
release_dc_ptr( origDC );
if (funcs) funcs = DRIVER_get_driver( funcs );
}
if (!funcs && !(funcs = DRIVER_load_driver( displayW ))) return 0;
if (!(dc = alloc_dc_ptr( funcs, OBJ_MEMDC ))) goto error;
TRACE("(%p): returning %p\n", hdc, dc->hSelf );
dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
if (!(dc->hVisRgn = CreateRectRgn( 0, 0, 1, 1 ))) goto error; /* default bitmap is 1x1 */
/* Copy the driver-specific physical device info into
* the new DC. The driver may use this read-only info
* while creating the compatible DC below. */
dc->physDev = physDev;
ret = dc->hSelf;
if (dc->funcs->pCreateDC &&
!dc->funcs->pCreateDC( dc->hSelf, &dc->physDev, NULL, NULL, NULL, NULL ))
{
WARN("creation aborted by device\n");
goto error;
}
DC_InitDC( dc );
release_dc_ptr( dc );
return ret;
error:
if (dc) free_dc_ptr( dc );
DRIVER_release_driver( funcs );
return 0;
}
/***********************************************************************
* DeleteDC (GDI32.@)
*/
BOOL WINAPI DeleteDC( HDC hdc )
{
const DC_FUNCTIONS *funcs = NULL;
DC * dc;
TRACE("%p\n", hdc );
GDI_CheckNotLock();
if (!(dc = get_dc_ptr( hdc ))) return FALSE;
if (dc->refcount != 1)
{
FIXME( "not deleting busy DC %p refcount %u\n", dc->hSelf, dc->refcount );
release_dc_ptr( dc );
return FALSE;
}
/* Call hook procedure to check whether is it OK to delete this DC */
if (dc->hookProc && !dc->hookProc( hdc, DCHC_DELETEDC, dc->dwHookData, 0 ))
{
release_dc_ptr( dc );
return FALSE;
}
while (dc->saveLevel)
{
DC * dcs;
HDC hdcs = dc->saved_dc;
if (!(dcs = get_dc_ptr( hdcs ))) break;
dc->saved_dc = dcs->saved_dc;
dc->saveLevel--;
free_dc_ptr( dcs );
}
if (!(dc->flags & DC_SAVED))
{
SelectObject( hdc, GetStockObject(BLACK_PEN) );
SelectObject( hdc, GetStockObject(WHITE_BRUSH) );
SelectObject( hdc, GetStockObject(SYSTEM_FONT) );
SelectObject( hdc, GetStockObject(DEFAULT_BITMAP) );
funcs = dc->funcs;
if (dc->funcs->pDeleteDC) dc->funcs->pDeleteDC(dc->physDev);
dc->physDev = NULL;
}
free_dc_ptr( dc );
if (funcs) DRIVER_release_driver( funcs ); /* do that after releasing the GDI lock */
return TRUE;
}
/***********************************************************************
* ResetDCW (GDI32.@)
*/
HDC WINAPI ResetDCW( HDC hdc, const DEVMODEW *devmode )
{
DC *dc;
HDC ret = hdc;
if ((dc = get_dc_ptr( hdc )))
{
if (dc->funcs->pResetDC)
{
ret = dc->funcs->pResetDC( dc->physDev, devmode );
if (ret) /* reset the visible region */
{
dc->dirty = 0;
SetRectRgn( dc->hVisRgn, 0, 0, GetDeviceCaps( hdc, DESKTOPHORZRES ),
GetDeviceCaps( hdc, DESKTOPVERTRES ) );
CLIPPING_UpdateGCRegion( dc );
}
}
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* ResetDCA (GDI32.@)
*/
HDC WINAPI ResetDCA( HDC hdc, const DEVMODEA *devmode )
{
DEVMODEW *devmodeW;
HDC ret;
if (devmode) devmodeW = GdiConvertToDevmodeW(devmode);
else devmodeW = NULL;
ret = ResetDCW(hdc, devmodeW);
HeapFree(GetProcessHeap(), 0, devmodeW);
return ret;
}
/***********************************************************************
* GetDeviceCaps (GDI32.@)
*/
INT WINAPI GetDeviceCaps( HDC hdc, INT cap )
{
DC *dc;
INT ret = 0;
if ((dc = get_dc_ptr( hdc )))
{
if (dc->funcs->pGetDeviceCaps) ret = dc->funcs->pGetDeviceCaps( dc->physDev, cap );
else switch(cap) /* return meaningful values for some entries */
{
case HORZRES: ret = 640; break;
case VERTRES: ret = 480; break;
case BITSPIXEL: ret = 1; break;
case PLANES: ret = 1; break;
case NUMCOLORS: ret = 2; break;
case ASPECTX: ret = 36; break;
case ASPECTY: ret = 36; break;
case ASPECTXY: ret = 51; break;
case LOGPIXELSX: ret = 72; break;
case LOGPIXELSY: ret = 72; break;
case SIZEPALETTE: ret = 2; break;
}
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* GetBkColor (GDI32.@)
*/
COLORREF WINAPI GetBkColor( HDC hdc )
{
COLORREF ret = 0;
DC * dc = get_dc_ptr( hdc );
if (dc)
{
ret = dc->backgroundColor;
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* SetBkColor (GDI32.@)
*/
COLORREF WINAPI SetBkColor( HDC hdc, COLORREF color )
{
COLORREF oldColor;
DC * dc = get_dc_ptr( hdc );
TRACE("hdc=%p color=0x%08x\n", hdc, color);
if (!dc) return CLR_INVALID;
oldColor = dc->backgroundColor;
if (dc->funcs->pSetBkColor)
{
color = dc->funcs->pSetBkColor(dc->physDev, color);
if (color == CLR_INVALID) /* don't change it */
{
color = oldColor;
oldColor = CLR_INVALID;
}
}
dc->backgroundColor = color;
release_dc_ptr( dc );
return oldColor;
}
/***********************************************************************
* GetTextColor (GDI32.@)
*/
COLORREF WINAPI GetTextColor( HDC hdc )
{
COLORREF ret = 0;
DC * dc = get_dc_ptr( hdc );
if (dc)
{
ret = dc->textColor;
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* SetTextColor (GDI32.@)
*/
COLORREF WINAPI SetTextColor( HDC hdc, COLORREF color )
{
COLORREF oldColor;
DC * dc = get_dc_ptr( hdc );
TRACE(" hdc=%p color=0x%08x\n", hdc, color);
if (!dc) return CLR_INVALID;
oldColor = dc->textColor;
if (dc->funcs->pSetTextColor)
{
color = dc->funcs->pSetTextColor(dc->physDev, color);
if (color == CLR_INVALID) /* don't change it */
{
color = oldColor;
oldColor = CLR_INVALID;
}
}
dc->textColor = color;
release_dc_ptr( dc );
return oldColor;
}
/***********************************************************************
* GetTextAlign (GDI32.@)
*/
UINT WINAPI GetTextAlign( HDC hdc )
{
UINT ret = 0;
DC * dc = get_dc_ptr( hdc );
if (dc)
{
ret = dc->textAlign;
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* SetTextAlign (GDI32.@)
*/
UINT WINAPI SetTextAlign( HDC hdc, UINT align )
{
UINT ret;
DC *dc = get_dc_ptr( hdc );
TRACE("hdc=%p align=%d\n", hdc, align);
if (!dc) return 0x0;
ret = dc->textAlign;
if (dc->funcs->pSetTextAlign)
if (!dc->funcs->pSetTextAlign(dc->physDev, align))
ret = GDI_ERROR;
if (ret != GDI_ERROR)
dc->textAlign = align;
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* GetDCOrgEx (GDI32.@)
*/
BOOL WINAPI GetDCOrgEx( HDC hDC, LPPOINT lpp )
{
DC * dc;
if (!lpp) return FALSE;
if (!(dc = get_dc_ptr( hDC ))) return FALSE;
lpp->x = lpp->y = 0;
if (dc->funcs->pGetDCOrgEx) dc->funcs->pGetDCOrgEx( dc->physDev, lpp );
release_dc_ptr( dc );
return TRUE;
}
/***********************************************************************
* GetGraphicsMode (GDI32.@)
*/
INT WINAPI GetGraphicsMode( HDC hdc )
{
INT ret = 0;
DC * dc = get_dc_ptr( hdc );
if (dc)
{
ret = dc->GraphicsMode;
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* SetGraphicsMode (GDI32.@)
*/
INT WINAPI SetGraphicsMode( HDC hdc, INT mode )
{
INT ret = 0;
DC *dc = get_dc_ptr( hdc );
/* 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.
*/
if (!dc) return 0;
if ((mode > 0) && (mode <= GM_LAST))
{
ret = dc->GraphicsMode;
dc->GraphicsMode = mode;
}
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* GetArcDirection (GDI32.@)
*/
INT WINAPI GetArcDirection( HDC hdc )
{
INT ret = 0;
DC * dc = get_dc_ptr( hdc );
if (dc)
{
ret = dc->ArcDirection;
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* SetArcDirection (GDI32.@)
*/
INT WINAPI SetArcDirection( HDC hdc, INT nDirection )
{
DC * dc;
INT nOldDirection = 0;
if (nDirection!=AD_COUNTERCLOCKWISE && nDirection!=AD_CLOCKWISE)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if ((dc = get_dc_ptr( hdc )))
{
if (dc->funcs->pSetArcDirection)
{
dc->funcs->pSetArcDirection(dc->physDev, nDirection);
}
nOldDirection = dc->ArcDirection;
dc->ArcDirection = nDirection;
release_dc_ptr( dc );
}
return nOldDirection;
}
/***********************************************************************
* GetWorldTransform (GDI32.@)
*/
BOOL WINAPI GetWorldTransform( HDC hdc, LPXFORM xform )
{
DC * dc;
if (!xform) return FALSE;
if (!(dc = get_dc_ptr( hdc ))) return FALSE;
*xform = dc->xformWorld2Wnd;
release_dc_ptr( dc );
return TRUE;
}
/***********************************************************************
* GetTransform (GDI32.@)
*
* 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 GetTransform( 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;
}
/***********************************************************************
* SetWorldTransform (GDI32.@)
*/
BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
{
BOOL ret = FALSE;
DC *dc;
if (!xform) return FALSE;
dc = get_dc_ptr( hdc );
if (!dc) return FALSE;
/* Check that graphics mode is GM_ADVANCED */
if (dc->GraphicsMode!=GM_ADVANCED) goto done;
TRACE("eM11 %f eM12 %f eM21 %f eM22 %f eDx %f eDy %f\n",
xform->eM11, xform->eM12, xform->eM21, xform->eM22, xform->eDx, xform->eDy);
/* The transform must conform to (eM11 * eM22 != eM12 * eM21) requirement */
if (xform->eM11 * xform->eM22 == xform->eM12 * xform->eM21) goto done;
if (dc->funcs->pSetWorldTransform)
{
ret = dc->funcs->pSetWorldTransform(dc->physDev, xform);
if (!ret) goto done;
}
dc->xformWorld2Wnd = *xform;
DC_UpdateXforms( dc );
ret = TRUE;
done:
release_dc_ptr( dc );
return ret;
}
/****************************************************************************
* ModifyWorldTransform [GDI32.@]
* Modifies the world transformation for a device context.
*
* PARAMS
* hdc [I] Handle to device context
* xform [I] XFORM structure that will be used to modify the world
* transformation
* iMode [I] Specifies in what way to modify the world transformation
* Possible values:
* MWT_IDENTITY
* Resets the world transformation to the identity matrix.
* The parameter xform is ignored.
* MWT_LEFTMULTIPLY
* Multiplies xform into the world transformation matrix from
* the left.
* MWT_RIGHTMULTIPLY
* Multiplies xform into the world transformation matrix from
* the right.
*
* RETURNS
* Success: TRUE.
* Failure: FALSE. Use GetLastError() to determine the cause.
*/
BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
DWORD iMode )
{
BOOL ret = FALSE;
DC *dc = get_dc_ptr( hdc );
/* Check for illegal parameters */
if (!dc) return FALSE;
if (!xform && iMode != MWT_IDENTITY) goto done;
/* Check that graphics mode is GM_ADVANCED */
if (dc->GraphicsMode!=GM_ADVANCED) goto done;
if (dc->funcs->pModifyWorldTransform)
{
ret = dc->funcs->pModifyWorldTransform(dc->physDev, xform, iMode);
if (!ret) goto done;
}
switch (iMode)
{
case MWT_IDENTITY:
dc->xformWorld2Wnd.eM11 = 1.0f;
dc->xformWorld2Wnd.eM12 = 0.0f;
dc->xformWorld2Wnd.eM21 = 0.0f;
dc->xformWorld2Wnd.eM22 = 1.0f;
dc->xformWorld2Wnd.eDx = 0.0f;
dc->xformWorld2Wnd.eDy = 0.0f;
break;
case MWT_LEFTMULTIPLY:
CombineTransform( &dc->xformWorld2Wnd, xform,
&dc->xformWorld2Wnd );
break;
case MWT_RIGHTMULTIPLY:
CombineTransform( &dc->xformWorld2Wnd, &dc->xformWorld2Wnd,
xform );
break;
default:
goto done;
}
DC_UpdateXforms( dc );
ret = TRUE;
done:
release_dc_ptr( dc );
return ret;
}
/****************************************************************************
* CombineTransform [GDI32.@]
* Combines two transformation matrices.
*
* PARAMS
* xformResult [O] Stores the result of combining the two matrices
* xform1 [I] Specifies the first matrix to apply
* xform2 [I] Specifies the second matrix to apply
*
* REMARKS
* The same matrix can be passed in for more than one of the parameters.
*
* RETURNS
* Success: TRUE.
* Failure: FALSE. Use GetLastError() to determine the cause.
*/
BOOL WINAPI CombineTransform( LPXFORM xformResult, const XFORM *xform1,
const XFORM *xform2 )
{
XFORM xformTemp;
/* Check for illegal parameters */
if (!xformResult || !xform1 || !xform2)
return FALSE;
/* Create the result in a temporary XFORM, since xformResult may be
* equal to xform1 or xform2 */
xformTemp.eM11 = xform1->eM11 * xform2->eM11 +
xform1->eM12 * xform2->eM21;
xformTemp.eM12 = xform1->eM11 * xform2->eM12 +
xform1->eM12 * xform2->eM22;
xformTemp.eM21 = xform1->eM21 * xform2->eM11 +
xform1->eM22 * xform2->eM21;
xformTemp.eM22 = xform1->eM21 * xform2->eM12 +
xform1->eM22 * xform2->eM22;
xformTemp.eDx = xform1->eDx * xform2->eM11 +
xform1->eDy * xform2->eM21 +
xform2->eDx;
xformTemp.eDy = xform1->eDx * xform2->eM12 +
xform1->eDy * xform2->eM22 +
xform2->eDy;
/* Copy the result to xformResult */
*xformResult = xformTemp;
return TRUE;
}
/***********************************************************************
* SetDCHook (GDI32.@)
*
* 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;
if (!(dc->flags & DC_SAVED))
{
dc->dwHookData = dwHookData;
dc->hookProc = hookProc;
}
release_dc_ptr( dc );
return TRUE;
}
/***********************************************************************
* GetDCHook (GDI32.@)
*
* 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 (GDI32.@)
*
* 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;
/* "Undocumented Windows" info is slightly confusing. */
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 );
GDI_ReleaseObj( dc );
return ret;
}
/***********************************************************************
* SetICMMode (GDI32.@)
*/
INT WINAPI SetICMMode(HDC hdc, INT iEnableICM)
{
/*FIXME: Assume that ICM is always off, and cannot be turned on */
if (iEnableICM == ICM_OFF) return ICM_OFF;
if (iEnableICM == ICM_ON) return 0;
if (iEnableICM == ICM_QUERY) return ICM_OFF;
return 0;
}
/***********************************************************************
* GetDeviceGammaRamp (GDI32.@)
*/
BOOL WINAPI GetDeviceGammaRamp(HDC hDC, LPVOID ptr)
{
BOOL ret = FALSE;
DC *dc = get_dc_ptr( hDC );
if( dc )
{
if (dc->funcs->pGetDeviceGammaRamp)
ret = dc->funcs->pGetDeviceGammaRamp(dc->physDev, ptr);
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* SetDeviceGammaRamp (GDI32.@)
*/
BOOL WINAPI SetDeviceGammaRamp(HDC hDC, LPVOID ptr)
{
BOOL ret = FALSE;
DC *dc = get_dc_ptr( hDC );
if( dc )
{
if (dc->funcs->pSetDeviceGammaRamp)
ret = dc->funcs->pSetDeviceGammaRamp(dc->physDev, ptr);
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* GetColorSpace (GDI32.@)
*/
HCOLORSPACE WINAPI GetColorSpace(HDC hdc)
{
/*FIXME Need to to whatever GetColorSpace actually does */
return 0;
}
/***********************************************************************
* CreateColorSpaceA (GDI32.@)
*/
HCOLORSPACE WINAPI CreateColorSpaceA( LPLOGCOLORSPACEA lpLogColorSpace )
{
FIXME( "stub\n" );
return 0;
}
/***********************************************************************
* CreateColorSpaceW (GDI32.@)
*/
HCOLORSPACE WINAPI CreateColorSpaceW( LPLOGCOLORSPACEW lpLogColorSpace )
{
FIXME( "stub\n" );
return 0;
}
/***********************************************************************
* DeleteColorSpace (GDI32.@)
*/
BOOL WINAPI DeleteColorSpace( HCOLORSPACE hColorSpace )
{
FIXME( "stub\n" );
return TRUE;
}
/***********************************************************************
* SetColorSpace (GDI32.@)
*/
HCOLORSPACE WINAPI SetColorSpace( HDC hDC, HCOLORSPACE hColorSpace )
{
FIXME( "stub\n" );
return hColorSpace;
}
/***********************************************************************
* GetBoundsRect (GDI32.@)
*/
UINT WINAPI GetBoundsRect(HDC hdc, LPRECT rect, UINT flags)
{
UINT ret;
DC *dc = get_dc_ptr( hdc );
if ( !dc ) return 0;
if (rect) *rect = dc->BoundsRect;
ret = ((dc->flags & DC_BOUNDS_SET) ? DCB_SET : DCB_RESET);
if (flags & DCB_RESET)
{
dc->BoundsRect.left = 0;
dc->BoundsRect.top = 0;
dc->BoundsRect.right = 0;
dc->BoundsRect.bottom = 0;
dc->flags &= ~DC_BOUNDS_SET;
}
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* SetBoundsRect (GDI32.@)
*/
UINT WINAPI SetBoundsRect(HDC hdc, const RECT* rect, UINT flags)
{
UINT ret;
DC *dc;
if ((flags & DCB_ENABLE) && (flags & DCB_DISABLE)) return 0;
if (!(dc = get_dc_ptr( hdc ))) return 0;
ret = ((dc->flags & DC_BOUNDS_ENABLE) ? DCB_ENABLE : DCB_DISABLE) |
((dc->flags & DC_BOUNDS_SET) ? DCB_SET : DCB_RESET);
if (flags & DCB_RESET)
{
dc->BoundsRect.left = 0;
dc->BoundsRect.top = 0;
dc->BoundsRect.right = 0;
dc->BoundsRect.bottom = 0;
dc->flags &= ~DC_BOUNDS_SET;
}
if ((flags & DCB_ACCUMULATE) && rect && rect->left < rect->right && rect->top < rect->bottom)
{
if (dc->flags & DC_BOUNDS_SET)
{
dc->BoundsRect.left = min( dc->BoundsRect.left, rect->left );
dc->BoundsRect.top = min( dc->BoundsRect.top, rect->top );
dc->BoundsRect.right = max( dc->BoundsRect.right, rect->right );
dc->BoundsRect.bottom = max( dc->BoundsRect.bottom, rect->bottom );
}
else
{
dc->BoundsRect = *rect;
dc->flags |= DC_BOUNDS_SET;
}
}
if (flags & DCB_ENABLE) dc->flags |= DC_BOUNDS_ENABLE;
if (flags & DCB_DISABLE) dc->flags &= ~DC_BOUNDS_ENABLE;
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* GetRelAbs (GDI32.@)
*/
INT WINAPI GetRelAbs( HDC hdc, DWORD dwIgnore )
{
INT ret = 0;
DC *dc = get_dc_ptr( hdc );
if (dc)
{
ret = dc->relAbsMode;
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* GetBkMode (GDI32.@)
*/
INT WINAPI GetBkMode( HDC hdc )
{
INT ret = 0;
DC * dc = get_dc_ptr( hdc );
if (dc)
{
ret = dc->backgroundMode;
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* SetBkMode (GDI32.@)
*/
INT WINAPI SetBkMode( HDC hdc, INT mode )
{
INT ret;
DC *dc;
if ((mode <= 0) || (mode > BKMODE_LAST))
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if (!(dc = get_dc_ptr( hdc ))) return 0;
ret = dc->backgroundMode;
if (dc->funcs->pSetBkMode)
if (!dc->funcs->pSetBkMode( dc->physDev, mode ))
ret = 0;
if (ret)
dc->backgroundMode = mode;
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* GetROP2 (GDI32.@)
*/
INT WINAPI GetROP2( HDC hdc )
{
INT ret = 0;
DC * dc = get_dc_ptr( hdc );
if (dc)
{
ret = dc->ROPmode;
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* SetROP2 (GDI32.@)
*/
INT WINAPI SetROP2( HDC hdc, INT mode )
{
INT ret;
DC *dc;
if ((mode < R2_BLACK) || (mode > R2_WHITE))
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if (!(dc = get_dc_ptr( hdc ))) return 0;
ret = dc->ROPmode;
if (dc->funcs->pSetROP2)
if (!dc->funcs->pSetROP2( dc->physDev, mode ))
ret = 0;
if (ret)
dc->ROPmode = mode;
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* SetRelAbs (GDI32.@)
*/
INT WINAPI SetRelAbs( HDC hdc, INT mode )
{
INT ret;
DC *dc;
if ((mode != ABSOLUTE) && (mode != RELATIVE))
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if (!(dc = get_dc_ptr( hdc ))) return 0;
if (dc->funcs->pSetRelAbs)
ret = dc->funcs->pSetRelAbs( dc->physDev, mode );
else
{
ret = dc->relAbsMode;
dc->relAbsMode = mode;
}
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* GetPolyFillMode (GDI32.@)
*/
INT WINAPI GetPolyFillMode( HDC hdc )
{
INT ret = 0;
DC * dc = get_dc_ptr( hdc );
if (dc)
{
ret = dc->polyFillMode;
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* SetPolyFillMode (GDI32.@)
*/
INT WINAPI SetPolyFillMode( HDC hdc, INT mode )
{
INT ret;
DC *dc;
if ((mode <= 0) || (mode > POLYFILL_LAST))
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if (!(dc = get_dc_ptr( hdc ))) return 0;
ret = dc->polyFillMode;
if (dc->funcs->pSetPolyFillMode)
if (!dc->funcs->pSetPolyFillMode( dc->physDev, mode ))
ret = 0;
if (ret)
dc->polyFillMode = mode;
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* GetStretchBltMode (GDI32.@)
*/
INT WINAPI GetStretchBltMode( HDC hdc )
{
INT ret = 0;
DC * dc = get_dc_ptr( hdc );
if (dc)
{
ret = dc->stretchBltMode;
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* SetStretchBltMode (GDI32.@)
*/
INT WINAPI SetStretchBltMode( HDC hdc, INT mode )
{
INT ret;
DC *dc;
if ((mode <= 0) || (mode > MAXSTRETCHBLTMODE))
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if (!(dc = get_dc_ptr( hdc ))) return 0;
ret = dc->stretchBltMode;
if (dc->funcs->pSetStretchBltMode)
if (!dc->funcs->pSetStretchBltMode( dc->physDev, mode ))
ret = 0;
if (ret)
dc->stretchBltMode = mode;
release_dc_ptr( dc );
return ret;
}
/***********************************************************************
* GetMapMode (GDI32.@)
*/
INT WINAPI GetMapMode( HDC hdc )
{
INT ret = 0;
DC * dc = get_dc_ptr( hdc );
if (dc)
{
ret = dc->MapMode;
release_dc_ptr( dc );
}
return ret;
}
/***********************************************************************
* GetBrushOrgEx (GDI32.@)
*/
BOOL WINAPI GetBrushOrgEx( HDC hdc, LPPOINT pt )
{
DC * dc = get_dc_ptr( hdc );
if (!dc) return FALSE;
pt->x = dc->brushOrgX;
pt->y = dc->brushOrgY;
release_dc_ptr( dc );
return TRUE;
}
/***********************************************************************
* GetCurrentPositionEx (GDI32.@)
*/
BOOL WINAPI GetCurrentPositionEx( HDC hdc, LPPOINT pt )
{
DC * dc = get_dc_ptr( hdc );
if (!dc) return FALSE;
pt->x = dc->CursPosX;
pt->y = dc->CursPosY;
release_dc_ptr( dc );
return TRUE;
}
/***********************************************************************
* GetViewportExtEx (GDI32.@)
*/
BOOL WINAPI GetViewportExtEx( HDC hdc, LPSIZE size )
{
DC * dc = get_dc_ptr( hdc );
if (!dc) return FALSE;
size->cx = dc->vportExtX;
size->cy = dc->vportExtY;
release_dc_ptr( dc );
return TRUE;
}
/***********************************************************************
* GetViewportOrgEx (GDI32.@)
*/
BOOL WINAPI GetViewportOrgEx( HDC hdc, LPPOINT pt )
{
DC * dc = get_dc_ptr( hdc );
if (!dc) return FALSE;
pt->x = dc->vportOrgX;
pt->y = dc->vportOrgY;
release_dc_ptr( dc );
return TRUE;
}
/***********************************************************************
* GetWindowExtEx (GDI32.@)
*/
BOOL WINAPI GetWindowExtEx( HDC hdc, LPSIZE size )
{
DC * dc = get_dc_ptr( hdc );
if (!dc) return FALSE;
size->cx = dc->wndExtX;
size->cy = dc->wndExtY;
release_dc_ptr( dc );
return TRUE;
}
/***********************************************************************
* GetWindowOrgEx (GDI32.@)
*/
BOOL WINAPI GetWindowOrgEx( HDC hdc, LPPOINT pt )
{
DC * dc = get_dc_ptr( hdc );
if (!dc) return FALSE;
pt->x = dc->wndOrgX;
pt->y = dc->wndOrgY;
release_dc_ptr( dc );
return TRUE;
}
/***********************************************************************
* GetLayout (GDI32.@)
*
* Gets left->right or right->left text layout flags of a dc.
*
*/
DWORD WINAPI GetLayout(HDC hdc)
{
DWORD layout = GDI_ERROR;
DC * dc = get_dc_ptr( hdc );
if (dc)
{
layout = dc->layout;
release_dc_ptr( dc );
}
TRACE("hdc : %p, layout : %08x\n", hdc, layout);
return layout;
}
/***********************************************************************
* SetLayout (GDI32.@)
*
* Sets left->right or right->left text layout flags of a dc.
*
*/
DWORD WINAPI SetLayout(HDC hdc, DWORD layout)
{
DWORD oldlayout = GDI_ERROR;
DC * dc = get_dc_ptr( hdc );
if (dc)
{
oldlayout = dc->layout;
dc->layout = layout;
release_dc_ptr( dc );
}
TRACE("hdc : %p, old layout : %08x, new layout : %08x\n", hdc, oldlayout, layout);
return oldlayout;
}
/***********************************************************************
* GetDCBrushColor (GDI32.@)
*
* Retrieves the current brush color for the specified device
* context (DC).
*
*/
COLORREF WINAPI GetDCBrushColor(HDC hdc)
{
DC *dc;
COLORREF dcBrushColor = CLR_INVALID;
TRACE("hdc(%p)\n", hdc);
dc = get_dc_ptr( hdc );
if (dc)
{
dcBrushColor = dc->dcBrushColor;
release_dc_ptr( dc );
}
return dcBrushColor;
}
/***********************************************************************
* SetDCBrushColor (GDI32.@)
*
* Sets the current device context (DC) brush color to the specified
* color value. If the device cannot represent the specified color
* value, the color is set to the nearest physical color.
*
*/
COLORREF WINAPI SetDCBrushColor(HDC hdc, COLORREF crColor)
{
DC *dc;
COLORREF oldClr = CLR_INVALID;
TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
dc = get_dc_ptr( hdc );
if (dc)
{
if (dc->funcs->pSetDCBrushColor)
crColor = dc->funcs->pSetDCBrushColor( dc->physDev, crColor );
else if (dc->hBrush == GetStockObject( DC_BRUSH ))
{
/* If DC_BRUSH is selected, update driver pen color */
HBRUSH hBrush = CreateSolidBrush( crColor );
dc->funcs->pSelectBrush( dc->physDev, hBrush );
DeleteObject( hBrush );
}
if (crColor != CLR_INVALID)
{
oldClr = dc->dcBrushColor;
dc->dcBrushColor = crColor;
}
release_dc_ptr( dc );
}
return oldClr;
}
/***********************************************************************
* GetDCPenColor (GDI32.@)
*
* Retrieves the current pen color for the specified device
* context (DC).
*
*/
COLORREF WINAPI GetDCPenColor(HDC hdc)
{
DC *dc;
COLORREF dcPenColor = CLR_INVALID;
TRACE("hdc(%p)\n", hdc);
dc = get_dc_ptr( hdc );
if (dc)
{
dcPenColor = dc->dcPenColor;
release_dc_ptr( dc );
}
return dcPenColor;
}
/***********************************************************************
* SetDCPenColor (GDI32.@)
*
* Sets the current device context (DC) pen color to the specified
* color value. If the device cannot represent the specified color
* value, the color is set to the nearest physical color.
*
*/
COLORREF WINAPI SetDCPenColor(HDC hdc, COLORREF crColor)
{
DC *dc;
COLORREF oldClr = CLR_INVALID;
TRACE("hdc(%p) crColor(%08x)\n", hdc, crColor);
dc = get_dc_ptr( hdc );
if (dc)
{
if (dc->funcs->pSetDCPenColor)
crColor = dc->funcs->pSetDCPenColor( dc->physDev, crColor );
else if (dc->hPen == GetStockObject( DC_PEN ))
{
/* If DC_PEN is selected, update the driver pen color */
LOGPEN logpen = { PS_SOLID, { 0, 0 }, crColor };
HPEN hPen = CreatePenIndirect( &logpen );
dc->funcs->pSelectPen( dc->physDev, hPen );
DeleteObject( hPen );
}
if (crColor != CLR_INVALID)
{
oldClr = dc->dcPenColor;
dc->dcPenColor = crColor;
}
release_dc_ptr( dc );
}
return oldClr;
}
/***********************************************************************
* CancelDC (GDI32.@)
*/
BOOL WINAPI CancelDC(HDC hdc)
{
FIXME("stub\n");
return TRUE;
}
/*******************************************************************
* GetMiterLimit [GDI32.@]
*
*
*/
BOOL WINAPI GetMiterLimit(HDC hdc, PFLOAT peLimit)
{
BOOL bRet = FALSE;
DC *dc;
TRACE("(%p,%p)\n", hdc, peLimit);
dc = get_dc_ptr( hdc );
if (dc)
{
if (peLimit)
*peLimit = dc->miterLimit;
release_dc_ptr( dc );
bRet = TRUE;
}
return bRet;
}
/*******************************************************************
* SetMiterLimit [GDI32.@]
*
*
*/
BOOL WINAPI SetMiterLimit(HDC hdc, FLOAT eNewLimit, PFLOAT peOldLimit)
{
BOOL bRet = FALSE;
DC *dc;
TRACE("(%p,%f,%p)\n", hdc, eNewLimit, peOldLimit);
dc = get_dc_ptr( hdc );
if (dc)
{
if (peOldLimit)
*peOldLimit = dc->miterLimit;
dc->miterLimit = eNewLimit;
release_dc_ptr( dc );
bRet = TRUE;
}
return bRet;
}
/*******************************************************************
* GdiIsMetaPrintDC [GDI32.@]
*/
BOOL WINAPI GdiIsMetaPrintDC(HDC hdc)
{
FIXME("%p\n", hdc);
return FALSE;
}
/*******************************************************************
* GdiIsMetaFileDC [GDI32.@]
*/
BOOL WINAPI GdiIsMetaFileDC(HDC hdc)
{
TRACE("%p\n", hdc);
switch( GetObjectType( hdc ) )
{
case OBJ_METADC:
case OBJ_ENHMETADC:
return TRUE;
}
return FALSE;
}
/*******************************************************************
* GdiIsPlayMetafileDC [GDI32.@]
*/
BOOL WINAPI GdiIsPlayMetafileDC(HDC hdc)
{
FIXME("%p\n", hdc);
return FALSE;
}
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