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wine/graphics/mapping.c

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/*
* GDI mapping mode 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "gdi.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(gdi);
/***********************************************************************
* MAPPING_FixIsotropic
*
* Fix viewport extensions for isotropic mode.
*/
void MAPPING_FixIsotropic( DC * dc )
{
double xdim = (double)dc->vportExtX * GetDeviceCaps( dc->hSelf, HORZSIZE ) /
(GetDeviceCaps( dc->hSelf, HORZRES ) * dc->wndExtX);
double ydim = (double)dc->vportExtY * GetDeviceCaps( dc->hSelf, VERTSIZE ) /
(GetDeviceCaps( dc->hSelf, VERTRES ) * dc->wndExtY);
if (xdim > ydim)
{
dc->vportExtX = dc->vportExtX * fabs( ydim / xdim );
if (!dc->vportExtX) dc->vportExtX = 1;
}
else
{
dc->vportExtY = dc->vportExtY * fabs( xdim / ydim );
if (!dc->vportExtY) dc->vportExtY = 1;
}
}
/***********************************************************************
* DPtoLP (GDI.67)
*/
BOOL16 WINAPI DPtoLP16( HDC16 hdc, LPPOINT16 points, INT16 count )
{
DC * dc = DC_GetDCPtr( hdc );
if (!dc) return FALSE;
while (count--)
{
points->x = MulDiv( points->x - dc->vportOrgX, dc->wndExtX, dc->vportExtX ) + dc->wndOrgX;
points->y = MulDiv( points->y - dc->vportOrgY, dc->wndExtY, dc->vportExtY ) + dc->wndOrgY;
points++;
}
GDI_ReleaseObj( hdc );
return TRUE;
}
/***********************************************************************
* DPtoLP (GDI32.@)
*/
BOOL WINAPI DPtoLP( HDC hdc, LPPOINT points, INT count )
{
DC * dc = DC_GetDCPtr( hdc );
if (!dc) return FALSE;
if (dc->vport2WorldValid)
{
while (count--)
{
FLOAT x = points->x;
FLOAT y = points->y;
points->x = floor( x * dc->xformVport2World.eM11 +
y * dc->xformVport2World.eM21 +
dc->xformVport2World.eDx + 0.5 );
points->y = floor( x * dc->xformVport2World.eM12 +
y * dc->xformVport2World.eM22 +
dc->xformVport2World.eDy + 0.5 );
points++;
}
}
GDI_ReleaseObj( hdc );
return (count < 0);
}
/***********************************************************************
* LPtoDP (GDI.99)
*/
BOOL16 WINAPI LPtoDP16( HDC16 hdc, LPPOINT16 points, INT16 count )
{
DC * dc = DC_GetDCPtr( hdc );
if (!dc) return FALSE;
while (count--)
{
points->x = MulDiv( points->x - dc->wndOrgX, dc->vportExtX, dc->wndExtX ) + dc->vportOrgX;
points->y = MulDiv( points->y - dc->wndOrgY, dc->vportExtY, dc->wndExtY ) + dc->vportOrgY;
points++;
}
GDI_ReleaseObj( hdc );
return TRUE;
}
/***********************************************************************
* LPtoDP (GDI32.@)
*/
BOOL WINAPI LPtoDP( HDC hdc, LPPOINT points, INT count )
{
DC * dc = DC_GetDCPtr( hdc );
if (!dc) return FALSE;
while (count--)
{
FLOAT x = points->x;
FLOAT y = points->y;
points->x = floor( x * dc->xformWorld2Vport.eM11 +
y * dc->xformWorld2Vport.eM21 +
dc->xformWorld2Vport.eDx + 0.5 );
points->y = floor( x * dc->xformWorld2Vport.eM12 +
y * dc->xformWorld2Vport.eM22 +
dc->xformWorld2Vport.eDy + 0.5 );
points++;
}
GDI_ReleaseObj( hdc );
return TRUE;
}
/***********************************************************************
* SetMapMode (GDI32.@)
*/
INT WINAPI SetMapMode( HDC hdc, INT mode )
{
INT ret;
INT horzSize, vertSize, horzRes, vertRes;
DC * dc = DC_GetDCPtr( hdc );
if (!dc) return 0;
if (dc->funcs->pSetMapMode)
{
if((ret = dc->funcs->pSetMapMode( dc->physDev, mode )) != TRUE)
{
if(ret == GDI_NO_MORE_WORK)
ret = TRUE;
goto done;
}
}
TRACE("%04x %d\n", hdc, mode );
ret = dc->MapMode;
horzSize = GetDeviceCaps( hdc, HORZSIZE );
vertSize = GetDeviceCaps( hdc, VERTSIZE );
horzRes = GetDeviceCaps( hdc, HORZRES );
vertRes = GetDeviceCaps( hdc, VERTRES );
switch(mode)
{
case MM_TEXT:
dc->wndExtX = 1;
dc->wndExtY = 1;
dc->vportExtX = 1;
dc->vportExtY = 1;
break;
case MM_LOMETRIC:
case MM_ISOTROPIC:
dc->wndExtX = horzSize;
dc->wndExtY = vertSize;
dc->vportExtX = horzRes / 10;
dc->vportExtY = vertRes / -10;
break;
case MM_HIMETRIC:
dc->wndExtX = horzSize * 10;
dc->wndExtY = vertSize * 10;
dc->vportExtX = horzRes / 10;
dc->vportExtY = vertRes / -10;
break;
case MM_LOENGLISH:
dc->wndExtX = horzSize;
dc->wndExtY = vertSize;
dc->vportExtX = 254L * horzRes / 1000;
dc->vportExtY = -254L * vertRes / 1000;
break;
case MM_HIENGLISH:
dc->wndExtX = horzSize * 10;
dc->wndExtY = vertSize * 10;
dc->vportExtX = 254L * horzRes / 1000;
dc->vportExtY = -254L * vertRes / 1000;
break;
case MM_TWIPS:
dc->wndExtX = 144L * horzSize / 10;
dc->wndExtY = 144L * vertSize / 10;
dc->vportExtX = 254L * horzRes / 1000;
dc->vportExtY = -254L * vertRes / 1000;
break;
case MM_ANISOTROPIC:
break;
default:
goto done;
}
dc->MapMode = mode;
DC_UpdateXforms( dc );
done:
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* SetViewportExtEx (GDI32.@)
*/
BOOL WINAPI SetViewportExtEx( HDC hdc, INT x, INT y, LPSIZE size )
{
INT ret = TRUE;
DC * dc = DC_GetDCPtr( hdc );
if (!dc) return FALSE;
if (dc->funcs->pSetViewportExt)
{
if((ret = dc->funcs->pSetViewportExt( dc->physDev, x, y )) != TRUE)
{
if(ret == GDI_NO_MORE_WORK)
ret = TRUE;
goto done;
}
}
if (size)
{
size->cx = dc->vportExtX;
size->cy = dc->vportExtY;
}
if ((dc->MapMode != MM_ISOTROPIC) && (dc->MapMode != MM_ANISOTROPIC))
goto done;
if (!x || !y)
{
ret = FALSE;
goto done;
}
dc->vportExtX = x;
dc->vportExtY = y;
if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
DC_UpdateXforms( dc );
done:
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* SetViewportOrgEx (GDI32.@)
*/
BOOL WINAPI SetViewportOrgEx( HDC hdc, INT x, INT y, LPPOINT pt )
{
INT ret = TRUE;
DC * dc = DC_GetDCPtr( hdc );
if (!dc) return FALSE;
if (dc->funcs->pSetViewportOrg)
{
if((ret = dc->funcs->pSetViewportOrg( dc->physDev, x, y )) != TRUE)
{
if(ret == GDI_NO_MORE_WORK)
ret = TRUE;
goto done;
}
}
if (pt)
{
pt->x = dc->vportOrgX;
pt->y = dc->vportOrgY;
}
dc->vportOrgX = x;
dc->vportOrgY = y;
DC_UpdateXforms( dc );
done:
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* SetWindowExtEx (GDI32.@)
*/
BOOL WINAPI SetWindowExtEx( HDC hdc, INT x, INT y, LPSIZE size )
{
INT ret = TRUE;
DC * dc = DC_GetDCPtr( hdc );
if (!dc) return FALSE;
if (dc->funcs->pSetWindowExt)
{
if((ret = dc->funcs->pSetWindowExt( dc->physDev, x, y )) != TRUE)
{
if(ret == GDI_NO_MORE_WORK)
ret = TRUE;
goto done;
}
}
if (size)
{
size->cx = dc->wndExtX;
size->cy = dc->wndExtY;
}
if ((dc->MapMode != MM_ISOTROPIC) && (dc->MapMode != MM_ANISOTROPIC))
goto done;
if (!x || !y)
{
ret = FALSE;
goto done;
}
dc->wndExtX = x;
dc->wndExtY = y;
if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
DC_UpdateXforms( dc );
done:
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* SetWindowOrgEx (GDI32.@)
*/
BOOL WINAPI SetWindowOrgEx( HDC hdc, INT x, INT y, LPPOINT pt )
{
INT ret = TRUE;
DC * dc = DC_GetDCPtr( hdc );
if (!dc) return FALSE;
if (dc->funcs->pSetWindowOrg)
{
if((ret = dc->funcs->pSetWindowOrg( dc->physDev, x, y )) != TRUE)
{
if(ret == GDI_NO_MORE_WORK)
ret = TRUE;
goto done;
}
}
if (pt)
{
pt->x = dc->wndOrgX;
pt->y = dc->wndOrgY;
}
dc->wndOrgX = x;
dc->wndOrgY = y;
DC_UpdateXforms( dc );
done:
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* OffsetViewportOrgEx (GDI32.@)
*/
BOOL WINAPI OffsetViewportOrgEx( HDC hdc, INT x, INT y, LPPOINT pt)
{
INT ret = TRUE;
DC * dc = DC_GetDCPtr( hdc );
if (!dc) return FALSE;
if (dc->funcs->pOffsetViewportOrg)
{
if((ret = dc->funcs->pOffsetViewportOrg( dc->physDev, x, y )) != TRUE)
{
if(ret == GDI_NO_MORE_WORK)
ret = TRUE;
goto done;
}
}
if (pt)
{
pt->x = dc->vportOrgX;
pt->y = dc->vportOrgY;
}
dc->vportOrgX += x;
dc->vportOrgY += y;
DC_UpdateXforms( dc );
done:
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* OffsetWindowOrgEx (GDI32.@)
*/
BOOL WINAPI OffsetWindowOrgEx( HDC hdc, INT x, INT y, LPPOINT pt )
{
INT ret = TRUE;
DC * dc = DC_GetDCPtr( hdc );
if (!dc) return FALSE;
if (dc->funcs->pOffsetWindowOrg)
{
if((ret = dc->funcs->pOffsetWindowOrg( dc->physDev, x, y )) != TRUE)
{
if(ret == GDI_NO_MORE_WORK)
ret = TRUE;
goto done;
}
}
if (pt)
{
pt->x = dc->wndOrgX;
pt->y = dc->wndOrgY;
}
dc->wndOrgX += x;
dc->wndOrgY += y;
DC_UpdateXforms( dc );
done:
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* ScaleViewportExtEx (GDI32.@)
*/
BOOL WINAPI ScaleViewportExtEx( HDC hdc, INT xNum, INT xDenom,
INT yNum, INT yDenom, LPSIZE size )
{
INT ret = TRUE;
DC * dc = DC_GetDCPtr( hdc );
if (!dc) return FALSE;
if (dc->funcs->pScaleViewportExt)
{
if((ret = dc->funcs->pScaleViewportExt( dc->physDev, xNum, xDenom, yNum, yDenom )) != TRUE)
{
if(ret == GDI_NO_MORE_WORK)
ret = TRUE;
goto done;
}
}
if (size)
{
size->cx = dc->vportExtX;
size->cy = dc->vportExtY;
}
if ((dc->MapMode != MM_ISOTROPIC) && (dc->MapMode != MM_ANISOTROPIC))
goto done;
if (!xNum || !xDenom || !xNum || !yDenom)
{
ret = FALSE;
goto done;
}
dc->vportExtX = (dc->vportExtX * xNum) / xDenom;
dc->vportExtY = (dc->vportExtY * yNum) / yDenom;
if (dc->vportExtX == 0) dc->vportExtX = 1;
if (dc->vportExtY == 0) dc->vportExtY = 1;
if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
DC_UpdateXforms( dc );
done:
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* ScaleWindowExtEx (GDI32.@)
*/
BOOL WINAPI ScaleWindowExtEx( HDC hdc, INT xNum, INT xDenom,
INT yNum, INT yDenom, LPSIZE size )
{
INT ret = TRUE;
DC * dc = DC_GetDCPtr( hdc );
if (!dc) return FALSE;
if (dc->funcs->pScaleWindowExt)
{
if((ret = dc->funcs->pScaleWindowExt( dc->physDev, xNum, xDenom, yNum, yDenom )) != TRUE)
{
if(ret == GDI_NO_MORE_WORK)
ret = TRUE;
goto done;
}
}
if (size)
{
size->cx = dc->wndExtX;
size->cy = dc->wndExtY;
}
if ((dc->MapMode != MM_ISOTROPIC) && (dc->MapMode != MM_ANISOTROPIC))
goto done;
if (!xNum || !xDenom || !xNum || !yDenom)
{
ret = FALSE;
goto done;
}
dc->wndExtX = (dc->wndExtX * xNum) / xDenom;
dc->wndExtY = (dc->wndExtY * yNum) / yDenom;
if (dc->wndExtX == 0) dc->wndExtX = 1;
if (dc->wndExtY == 0) dc->wndExtY = 1;
if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
DC_UpdateXforms( dc );
done:
GDI_ReleaseObj( hdc );
return ret;
}
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