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gdi32: Reimplement LPtoDP16/DPtoLP16 on top of the 32-bit functions.

This commit is contained in:
Alexandre Julliard 2009-11-17 12:19:36 +01:00
parent 9a145d13f1
commit 250237e1c1
1 changed files with 40 additions and 16 deletions
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56
dlls/gdi32/gdi16.c
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@ -3564,17 +3564,29 @@ VOID WINAPI SetMagicColors16(HDC16 hDC, COLORREF color, UINT16 index)
*/
BOOL16 WINAPI DPtoLP16( HDC16 hdc, LPPOINT16 points, INT16 count )
{
DC * dc = get_dc_ptr( HDC_32(hdc) );
if (!dc) return FALSE;
POINT points32[8], *pt32 = points32;
int i;
BOOL ret;
while (count--)
if (count > 8)
{
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++;
if (!(pt32 = HeapAlloc( GetProcessHeap(), 0, count * sizeof(*pt32) ))) return FALSE;
}
release_dc_ptr( dc );
return TRUE;
for (i = 0; i < count; i++)
{
pt32[i].x = points[i].x;
pt32[i].y = points[i].y;
}
if ((ret = DPtoLP( HDC_32(hdc), pt32, count )))
{
for (i = 0; i < count; i++)
{
points[i].x = pt32[i].x;
points[i].y = pt32[i].y;
}
}
if (pt32 != points32) HeapFree( GetProcessHeap(), 0, pt32 );
return ret;
}
@ -3583,17 +3595,29 @@ BOOL16 WINAPI DPtoLP16( HDC16 hdc, LPPOINT16 points, INT16 count )
*/
BOOL16 WINAPI LPtoDP16( HDC16 hdc, LPPOINT16 points, INT16 count )
{
DC * dc = get_dc_ptr( HDC_32(hdc) );
if (!dc) return FALSE;
POINT points32[8], *pt32 = points32;
int i;
BOOL ret;
while (count--)
if (count > 8)
{
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++;
if (!(pt32 = HeapAlloc( GetProcessHeap(), 0, count * sizeof(*pt32) ))) return FALSE;
}
release_dc_ptr( dc );
return TRUE;
for (i = 0; i < count; i++)
{
pt32[i].x = points[i].x;
pt32[i].y = points[i].y;
}
if ((ret = LPtoDP( HDC_32(hdc), pt32, count )))
{
for (i = 0; i < count; i++)
{
points[i].x = pt32[i].x;
points[i].y = pt32[i].y;
}
}
if (pt32 != points32) HeapFree( GetProcessHeap(), 0, pt32 );
return ret;
}