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wine
wine-winehq
Commits
f7b4a4e2
Commit
f7b4a4e2
authored
Jul 21, 2004
by
Alexandre Julliard
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Plain Diff
Moved LineDDA implementation to dlls/gdi/painting.c.
parent
da24dff4
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Showing
3 changed files
with
57 additions
and
72 deletions
+57
-72
Makefile.in
dlls/gdi/Makefile.in
+0
-1
painting.c
dlls/gdi/painting.c
+57
-0
linedda.c
objects/linedda.c
+0
-71
No files found.
dlls/gdi/Makefile.in
View file @
f7b4a4e2
...
...
@@ -24,7 +24,6 @@ C_SRCS = \
$(TOPOBJDIR)
/objects/enhmetafile.c
\
$(TOPOBJDIR)
/objects/font.c
\
$(TOPOBJDIR)
/objects/gdiobj.c
\
$(TOPOBJDIR)
/objects/linedda.c
\
$(TOPOBJDIR)
/objects/metafile.c
\
$(TOPOBJDIR)
/objects/palette.c
\
$(TOPOBJDIR)
/objects/pen.c
\
...
...
dlls/gdi/painting.c
View file @
f7b4a4e2
...
...
@@ -877,6 +877,63 @@ BOOL WINAPI PolyDraw(HDC hdc, const POINT *lppt, const BYTE *lpbTypes,
return
TRUE
;
}
/**********************************************************************
* LineDDA (GDI32.@)
*/
BOOL
WINAPI
LineDDA
(
INT
nXStart
,
INT
nYStart
,
INT
nXEnd
,
INT
nYEnd
,
LINEDDAPROC
callback
,
LPARAM
lParam
)
{
INT
xadd
=
1
,
yadd
=
1
;
INT
err
,
erradd
;
INT
cnt
;
INT
dx
=
nXEnd
-
nXStart
;
INT
dy
=
nYEnd
-
nYStart
;
if
(
dx
<
0
)
{
dx
=
-
dx
;
xadd
=
-
1
;
}
if
(
dy
<
0
)
{
dy
=
-
dy
;
yadd
=
-
1
;
}
if
(
dx
>
dy
)
/* line is "more horizontal" */
{
err
=
2
*
dy
-
dx
;
erradd
=
2
*
dy
-
2
*
dx
;
for
(
cnt
=
0
;
cnt
<=
dx
;
cnt
++
)
{
callback
(
nXStart
,
nYStart
,
lParam
);
if
(
err
>
0
)
{
nYStart
+=
yadd
;
err
+=
erradd
;
}
else
err
+=
2
*
dy
;
nXStart
+=
xadd
;
}
}
else
/* line is "more vertical" */
{
err
=
2
*
dx
-
dy
;
erradd
=
2
*
dx
-
2
*
dy
;
for
(
cnt
=
0
;
cnt
<=
dy
;
cnt
++
)
{
callback
(
nXStart
,
nYStart
,
lParam
);
if
(
err
>
0
)
{
nXStart
+=
xadd
;
err
+=
erradd
;
}
else
err
+=
2
*
dx
;
nYStart
+=
yadd
;
}
}
return
TRUE
;
}
/******************************************************************
*
* *Very* simple bezier drawing code,
...
...
objects/linedda.c
deleted
100644 → 0
View file @
da24dff4
/*
* LineDDA
*
* Copyright 1993 Bob Amstadt
*
* 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 <stdarg.h>
#include <stdlib.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
/**********************************************************************
* LineDDA (GDI32.@)
*/
BOOL
WINAPI
LineDDA
(
INT
nXStart
,
INT
nYStart
,
INT
nXEnd
,
INT
nYEnd
,
LINEDDAPROC
callback
,
LPARAM
lParam
)
{
INT
xadd
=
1
,
yadd
=
1
;
INT
err
,
erradd
;
INT
cnt
;
INT
dx
=
nXEnd
-
nXStart
;
INT
dy
=
nYEnd
-
nYStart
;
if
(
dx
<
0
)
{
dx
=
-
dx
;
xadd
=
-
1
;
}
if
(
dy
<
0
)
{
dy
=
-
dy
;
yadd
=
-
1
;
}
if
(
dx
>
dy
)
{
/* line is "more horizontal" */
err
=
2
*
dy
-
dx
;
erradd
=
2
*
dy
-
2
*
dx
;
for
(
cnt
=
0
;
cnt
<=
dx
;
cnt
++
)
{
callback
(
nXStart
,
nYStart
,
lParam
);
if
(
err
>
0
)
{
nYStart
+=
yadd
;
err
+=
erradd
;
}
else
{
err
+=
2
*
dy
;
}
nXStart
+=
xadd
;
}
}
else
{
/* line is "more vertical" */
err
=
2
*
dx
-
dy
;
erradd
=
2
*
dx
-
2
*
dy
;
for
(
cnt
=
0
;
cnt
<=
dy
;
cnt
++
)
{
callback
(
nXStart
,
nYStart
,
lParam
);
if
(
err
>
0
)
{
nXStart
+=
xadd
;
err
+=
erradd
;
}
else
{
err
+=
2
*
dx
;
}
nYStart
+=
yadd
;
}
}
return
TRUE
;
}
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