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gdi32/dibdrv: Clip segment points to dib rect in wide_line_segment(). 

Signed-off-by: Sergio Gómez Del Real <sdelreal@codeweavers.com>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Sergio Gómez Del Real 2019-02-08 10:05:10 -05:00 committed by Alexandre Julliard
parent 0d19628ef5
commit c20285218b
2 changed files with 41 additions and 10 deletions
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43
dlls/gdi32/dibdrv/objects.c
View File

@ -1334,15 +1334,21 @@ static void add_join( dibdrv_physdev *pdev, HRGN region, HRGN round_cap, const P
{
HRGN join;
POINT pts[4];
RECT rect;
switch (pdev->pen_join)
{
default: FIXME( "Unknown line join %x\n", pdev->pen_join );
/* fall through */
case PS_JOIN_ROUND:
OffsetRgn( round_cap, pt->x, pt->y );
CombineRgn( region, region, round_cap, RGN_OR );
OffsetRgn( round_cap, -pt->x, -pt->y );
GetRgnBox( round_cap, &rect );
offset_rect( &rect, pt->x, pt->y );
if (clip_rect_to_dib( &pdev->dib, &rect ))
{
OffsetRgn( round_cap, pt->x, pt->y );
CombineRgn( region, region, round_cap, RGN_OR );
OffsetRgn( round_cap, -pt->x, -pt->y );
}
return;
case PS_JOIN_MITER:
@ -1358,7 +1364,9 @@ static void add_join( dibdrv_physdev *pdev, HRGN region, HRGN round_cap, const P
break;
}
CombineRgn( region, region, join, RGN_OR );
GetRgnBox( join, &rect );
if (clip_rect_to_dib( &pdev->dib, &rect ))
CombineRgn( region, region, join, RGN_OR );
DeleteObject( join );
return;
}
@ -1367,7 +1375,7 @@ static BOOL wide_line_segment( dibdrv_physdev *pdev, HRGN total,
const POINT *pt_1, const POINT *pt_2, int dx, int dy,
BOOL need_cap_1, BOOL need_cap_2, struct face *face_1, struct face *face_2 )
{
RECT rect;
RECT rect, clip_rect;
BOOL sq_cap_1 = need_cap_1 && (pdev->pen_endcap == PS_ENDCAP_SQUARE);
BOOL sq_cap_2 = need_cap_2 && (pdev->pen_endcap == PS_ENDCAP_SQUARE);
@ -1381,7 +1389,9 @@ static BOOL wide_line_segment( dibdrv_physdev *pdev, HRGN total,
rect.bottom = rect.top + pdev->pen_width;
if ((sq_cap_1 && dx > 0) || (sq_cap_2 && dx < 0)) rect.left -= pdev->pen_width / 2;
if ((sq_cap_2 && dx > 0) || (sq_cap_1 && dx < 0)) rect.right += pdev->pen_width / 2;
add_rect_to_region( total, &rect );
clip_rect = rect;
if (clip_rect_to_dib( &pdev->dib, &clip_rect ))
add_rect_to_region( total, &clip_rect );
if (dx > 0)
{
face_1->start.x = face_1->end.x = rect.left;
@ -1405,7 +1415,9 @@ static BOOL wide_line_segment( dibdrv_physdev *pdev, HRGN total,
rect.right = rect.left + pdev->pen_width;
if ((sq_cap_1 && dy > 0) || (sq_cap_2 && dy < 0)) rect.top -= pdev->pen_width / 2;
if ((sq_cap_2 && dy > 0) || (sq_cap_1 && dy < 0)) rect.bottom += pdev->pen_width / 2;
add_rect_to_region( total, &rect );
clip_rect = rect;
if (clip_rect_to_dib( &pdev->dib, &clip_rect ))
add_rect_to_region( total, &clip_rect );
if (dy > 0)
{
face_1->start.x = face_2->end.x = rect.left;
@ -1475,9 +1487,20 @@ static BOOL wide_line_segment( dibdrv_physdev *pdev, HRGN total,
seg_pts[3].y += wide_half.x;
}
segment = CreatePolygonRgn( seg_pts, 4, ALTERNATE );
CombineRgn( total, total, segment, RGN_OR );
DeleteObject( segment );
if (dx > 0 && dy > 0)
set_rect( &clip_rect, seg_pts[0].x, seg_pts[1].y, seg_pts[2].x, seg_pts[3].y );
else if (dx > 0 && dy < 0)
set_rect( &clip_rect, seg_pts[1].x, seg_pts[2].y, seg_pts[3].x, seg_pts[0].y );
else if (dx < 0 && dy > 0)
set_rect( &clip_rect, seg_pts[3].x, seg_pts[0].y, seg_pts[1].x, seg_pts[2].y );
else
set_rect( &clip_rect, seg_pts[2].x, seg_pts[3].y, seg_pts[0].x, seg_pts[1].y );
if (clip_rect_to_dib( &pdev->dib, &clip_rect ))
{
segment = CreatePolygonRgn( seg_pts, 4, ALTERNATE );
CombineRgn( total, total, segment, RGN_OR );
DeleteObject( segment );
}
face_1->start = seg_pts[0];
face_1->end = seg_pts[1];

8
dlls/gdi32/gdi_private.h
View File

@ -521,6 +521,14 @@ static inline void offset_rect( RECT *rect, int offset_x, int offset_y )
rect->bottom += offset_y;
}
static inline void set_rect( RECT *rect, int left, int top, int right, int bottom )
{
rect->left = left;
rect->top = top;
rect->right = right;
rect->bottom = bottom;
}
static inline void order_rect( RECT *rect )
{
if (rect->left > rect->right)