BOOL nulldrv_ModifyWorldTransform( PHYSDEV dev, const XFORM *xform, DWORD mode )
{
DC *dc = get_nulldrv_dc( dev );
switch (mode)
{
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:
return FALSE;
}
DC_UpdateXforms( dc );
return TRUE;
}
void Test_CombineTransform()
{
XFORM xform1, xform2, xform3;
/* Test NULL paramters */
set_xform(&xform1, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
set_xform(&xform2, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
SetLastError(ERROR_SUCCESS);
ok_int(CombineTransform(&xform3, &xform1, NULL), 0);
ok_int(CombineTransform(&xform3, NULL, &xform2), 0);
ok_int(CombineTransform(NULL, &xform1, &xform2), 0);
ok_int(GetLastError(), ERROR_SUCCESS);
/* 2 zero matrices */
set_xform(&xform1, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
set_xform(&xform2, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
SetLastError(ERROR_SUCCESS);
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
ok_int(GetLastError(), ERROR_SUCCESS);
/* 2 Identity matrices */
set_xform(&xform1, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
set_xform(&xform2, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
SetLastError(ERROR_SUCCESS);
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, 1.0, 0., 0., 1.0, 0., 0.);
ok_int(GetLastError(), ERROR_SUCCESS);
/* 2 Identity matrices with offsets */
set_xform(&xform1, 1.0, 0.0, 0.0, 1.0, 20.0, -100.0);
set_xform(&xform2, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, 1.0, 0., 0., 1.0, 20.0, -100.0);
xform2.eDx = -60.0;
xform2.eDy = -20;
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_flt(xform3.eDx, -40.0);
ok_flt(xform3.eDy, -120.0);
/* add some stretching */
xform2.eM11 = 2;
xform2.eM22 = 4;
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, 2.0, 0., 0., 4.0, -20.0, -420.0);
/* add some more stretching */
xform1.eM11 = -2.5;
xform1.eM22 = 0.5;
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, -5.0, 0., 0., 2.0, -20.0, -420.0);
xform1.eM12 = 2.0;
xform1.eM21 = -0.5;
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, -5.0, 8.0, -1.0, 2.0, -20.0, -420.0);
xform2.eM12 = 4.0;
xform2.eM21 = 6.5;
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, 8.0, -2.0, 2.25, 0.0, -670.0, -340.0);
set_xform(&xform1, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
set_xform(&xform2, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
set_xform(&xform3, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
xform1.eDx = (FLOAT)4294967167.999999761;
ok(xform1.eDx == 4294967040.0, "float rounding error.\n");
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, 1.0, 0.0, 0.0, 1.0, 4294967040.0, 0.0);
set_xform(&xform3, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
xform1.eDx = (FLOAT)4294967167.999999762;
ok(xform1.eDx == 4294967296.0, "float rounding error.\n");
ok_int(CombineTransform(&xform3, &xform1, &xform2), 0);
ok_int(GetLastError(), ERROR_SUCCESS);
ok_xform(xform3, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
xform1.eDx = (FLOAT)-4294967167.999999761;
ok(xform1.eDx == -4294967040.0, "float rounding error.\n");
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
xform1.eDx = (FLOAT)-4294967167.999999762;
ok(xform1.eDx == -4294967296.0, "float rounding error.\n");
ok_int(CombineTransform(&xform3, &xform1, &xform2), 0);
ok_int(GetLastError(), ERROR_SUCCESS);
xform1.eDx = 0;
xform1.eDy = (FLOAT)4294967167.999999761;
ok(xform1.eDy == 4294967040.0, "float rounding error.\n");
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
xform2.eDy = 1;
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_flt(xform3.eDy, 4294967040.0);
xform1.eDy = (FLOAT)4294967167.999999762;
ok(xform1.eDy == 4294967296.0, "float rounding error.\n");
ok_int(CombineTransform(&xform3, &xform1, &xform2), 0);
ok_int(GetLastError(), ERROR_SUCCESS);
xform1.eDy = (FLOAT)-4294967167.999999761;
ok(xform1.eDy == -4294967040.0, "float rounding error.\n");
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
xform1.eDy = (FLOAT)-4294967167.999999762;
ok(xform1.eDy == -4294967296.0, "float rounding error.\n");
ok_int(CombineTransform(&xform3, &xform1, &xform2), 0);
ok_int(GetLastError(), ERROR_SUCCESS);
xform2.eDy = 10000;
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
set_xform(&xform1, 1000.0, 0.0, 0.0, 0.0, 0.0, 0.0);
xform1.eDx = (FLOAT)-4294967167.999999762;
xform2.eM11 = 1000.0;
ok_int(CombineTransform(&xform3, &xform1, &xform2), 0);
ok_int(GetLastError(), ERROR_SUCCESS);
xform1.eDx = 100000.0;
xform2.eM11 = 100000.0;
ok_int(CombineTransform(&xform3, &xform1, &xform2), 0);
ok_int(GetLastError(), ERROR_SUCCESS);
/* Some undefined values */
set_xform(&xform1, geIND, 0.0, 0.0, geINF, 0.0, 0.0);
xform2 = xform1;
SetLastError(ERROR_SUCCESS);
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, geIND, 0.0, 0.0, geINF, 0.0, 0.0);
ok_int(GetLastError(), ERROR_SUCCESS);
set_xform(&xform2, 1.0, 1.0, 1.0, 1.0, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, geIND, geIND, geINF, geINF, 0.0, 0.0);
ok_int(GetLastError(), ERROR_SUCCESS);
set_xform(&xform1, (FLOAT)18446743500000000000.0, 0.0, 1.0, 0.0, 0.0, 0.0);
xform2 = xform1;
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_flt(xform3.eM11, 340282326356119260000000000000000000000.0);
xform1.eM11 = (FLOAT)18446745000000000000.0;
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_flt(xform3.eM11, 340282346638528860000000000000000000000.0);
xform1.eM11 = (FLOAT)18446746000000000000.0;
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_long(*(DWORD*)&xform3.eM11, 0x7f800000);
/* zero matrix + 1 invalid */
set_xform(&xform1, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
set_xform(&xform2, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
*(DWORD*)&xform2.eM22 = 0x7f800000; // (0.0F/0.0F)
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, 0.0, 0.0, 0.0, geIND, 0.0, 0.0);
/* zero matrix + 1 invalid */
xform2 = xform1;
*(DWORD*)&xform2.eM12 = 0x7f800000; // (0.0F/0.0F)
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, 0.0, geIND, 0.0, geIND, 0.0, 0.0);
/* Some undefined values */
set_xform(&xform1, 0.0, geIND, 0.0, 0.0, 0.0, 0.0);
set_xform(&xform2, geIND, 0.0, 0.0, geINF, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, geIND, geIND, geIND, geIND, 0.0, 0.0);
}
void Test_CombineTransform_Inval(float eInval, float eOut)
{
XFORM xform1, xform2, xform3;
/* zero matrix / M11 invalid */
set_xform(&xform1, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
set_xform(&xform2, eInval, 0.0, 0.0, 0.0, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, eOut, 0.0, 0.0, 0.0, 0.0, 0.0); // -> M21
ok_int(CombineTransform(&xform3, &xform2, &xform1), 1);
ok_xform(xform3, eOut, 0.0, 0.0, 0.0, 0.0, 0.0); // -> M12
/* zero matrix / M12 invalid */
set_xform(&xform1, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
set_xform(&xform2, 0.0, eInval, 0.0, 0.0, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, 0.0, eOut, 0.0, eOut, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform2, &xform1), 1);
ok_xform(xform3, eOut, eOut, 0.0, 0.0, 0.0, 0.0);
/* zero matrix / M21 invalid */
set_xform(&xform1, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
set_xform(&xform2, 0.0, 0.0, eInval, 0.0, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, eOut, 0.0, eOut, 0.0, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform2, &xform1), 1);
ok_xform(xform3, 0.0, 0.0, eOut, eOut, 0.0, 0.0);
/* zero matrix / M22 invalid */
set_xform(&xform1, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
set_xform(&xform2, 0.0, 0.0, 0.0, eInval, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, 0.0, 0.0, 0.0, eOut, 0.0, 0.0); // -> M12
ok_int(CombineTransform(&xform3, &xform2, &xform1), 1);
ok_xform(xform3, 0.0, 0.0, 0.0, eOut, 0.0, 0.0); // -> M21
/* zero matrix / M11,M12 invalid */
set_xform(&xform1, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
set_xform(&xform2, eInval, eInval, 0.0, 0.0, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, eOut, eOut, eOut, eOut, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform2, &xform1), 1);
ok_xform(xform3, eOut, eOut, 0.0, 0.0, 0.0, 0.0);
/* zero matrix / M11,M21 invalid */
set_xform(&xform1, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
set_xform(&xform2, eInval, 0.0, eInval, 0.0, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, eOut, 0.0, eOut, 0.0, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform2, &xform1), 1);
ok_xform(xform3, eOut, eOut, eOut, eOut, 0.0, 0.0);
/* zero matrix / M11,M22 invalid */
set_xform(&xform1, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
set_xform(&xform2, eInval, 0.0, 0.0, eInval, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, eOut, 0.0, 0.0, eOut, 0.0, 0.0); // -> M12, M21
ok_int(CombineTransform(&xform3, &xform2, &xform1), 1);
ok_xform(xform3, eOut, 0.0, 0.0, eOut, 0.0, 0.0);
/* zero matrix / M12,M21 invalid */
set_xform(&xform1, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
set_xform(&xform2, 0.0, eInval, eInval, 0.0, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform1, &xform2), 1);
ok_xform(xform3, eOut, eOut, eOut, eOut, 0.0, 0.0);
ok_int(CombineTransform(&xform3, &xform2, &xform1), 1);
ok_xform(xform3, eOut, eOut, eOut, eOut, 0.0, 0.0);
}
/*********************************************************************
* PlgBlt [GDI32.@]
*
*/
BOOL WINAPI PlgBlt( HDC hdcDest, const POINT *lpPoint,
HDC hdcSrc, INT nXSrc, INT nYSrc, INT nWidth,
INT nHeight, HBITMAP hbmMask, INT xMask, INT yMask)
{
int oldgMode;
/* parallelogram coords */
POINT plg[3];
/* rect coords */
POINT rect[3];
XFORM xf;
XFORM SrcXf;
XFORM oldDestXf;
double det;
/* save actual mode, set GM_ADVANCED */
oldgMode = SetGraphicsMode(hdcDest,GM_ADVANCED);
if (oldgMode == 0)
return FALSE;
memcpy(plg,lpPoint,sizeof(POINT)*3);
rect[0].x = nXSrc;
rect[0].y = nYSrc;
rect[1].x = nXSrc + nWidth;
rect[1].y = nYSrc;
rect[2].x = nXSrc;
rect[2].y = nYSrc + nHeight;
/* calc XFORM matrix to transform hdcDest -> hdcSrc (parallelogram to rectangle) */
/* determinant */
det = rect[1].x*(rect[2].y - rect[0].y) - rect[2].x*(rect[1].y - rect[0].y) - rect[0].x*(rect[2].y - rect[1].y);
if (fabs(det) < 1e-5)
{
SetGraphicsMode(hdcDest,oldgMode);
return FALSE;
}
TRACE("hdcSrc=%p %d,%d,%dx%d -> hdcDest=%p %d,%d,%d,%d,%d,%d\n",
hdcSrc, nXSrc, nYSrc, nWidth, nHeight, hdcDest, plg[0].x, plg[0].y, plg[1].x, plg[1].y, plg[2].x, plg[2].y);
/* X components */
xf.eM11 = (plg[1].x*(rect[2].y - rect[0].y) - plg[2].x*(rect[1].y - rect[0].y) - plg[0].x*(rect[2].y - rect[1].y)) / det;
xf.eM21 = (rect[1].x*(plg[2].x - plg[0].x) - rect[2].x*(plg[1].x - plg[0].x) - rect[0].x*(plg[2].x - plg[1].x)) / det;
xf.eDx = (rect[0].x*(rect[1].y*plg[2].x - rect[2].y*plg[1].x) -
rect[1].x*(rect[0].y*plg[2].x - rect[2].y*plg[0].x) +
rect[2].x*(rect[0].y*plg[1].x - rect[1].y*plg[0].x)
) / det;
/* Y components */
xf.eM12 = (plg[1].y*(rect[2].y - rect[0].y) - plg[2].y*(rect[1].y - rect[0].y) - plg[0].y*(rect[2].y - rect[1].y)) / det;
xf.eM22 = (rect[1].x*(plg[2].y - plg[0].y) - rect[2].x*(plg[1].y - plg[0].y) - rect[0].x*(plg[2].y - plg[1].y)) / det;
xf.eDy = (rect[0].x*(rect[1].y*plg[2].y - rect[2].y*plg[1].y) -
rect[1].x*(rect[0].y*plg[2].y - rect[2].y*plg[0].y) +
rect[2].x*(rect[0].y*plg[1].y - rect[1].y*plg[0].y)
) / det;
GetWorldTransform(hdcSrc,&SrcXf);
CombineTransform(&xf,&xf,&SrcXf);
/* save actual dest transform */
GetWorldTransform(hdcDest,&oldDestXf);
SetWorldTransform(hdcDest,&xf);
/* now destination and source DCs use same coords */
MaskBlt(hdcDest,nXSrc,nYSrc,nWidth,nHeight,
hdcSrc, nXSrc,nYSrc,
hbmMask,xMask,yMask,
SRCCOPY);
/* restore dest DC */
SetWorldTransform(hdcDest,&oldDestXf);
SetGraphicsMode(hdcDest,oldgMode);
return TRUE;
}
