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gdi32: Only store a total visible region when it's a combination of other regions.

This commit is contained in:
Alexandre Julliard 2011-12-07 17:05:07 +01:00
parent ddfe35867d
commit fb37752f53
2 changed files with 29 additions and 25 deletions
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46
dlls/gdi32/clipping.c
View File

@ -71,13 +71,12 @@ BOOL clip_visrect( DC *dc, RECT *dst, const RECT *src )
{
RECT clip;
if (!GetRgnBox( get_dc_region(dc), &clip ))
{
*dst = *src;
if (get_dc_visrect( dc, &clip )) intersect_rect( dst, src, &clip );
else *dst = *src;
if (GetRgnBox( get_dc_region(dc), &clip )) intersect_rect( dst, dst, &clip );
return !is_rect_empty( dst );
}
return intersect_rect( dst, src, &clip );
}
/***********************************************************************
* CLIPPING_UpdateGCRegion
@ -87,7 +86,6 @@ BOOL clip_visrect( DC *dc, RECT *dst, const RECT *src )
void CLIPPING_UpdateGCRegion( DC * dc )
{
HRGN clip_rgn;
RECT visrect;
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetDeviceClipping );
/* update the intersection of meta and clip regions */
@ -102,23 +100,17 @@ void CLIPPING_UpdateGCRegion( DC * dc )
dc->hMetaClipRgn = 0;
}
clip_rgn = get_clip_region( dc );
if (dc->hVisRgn)
if (clip_rgn && dc->hVisRgn)
{
if (!dc->region) dc->region = CreateRectRgn( 0, 0, 0, 0 );
CombineRgn( dc->region, dc->hVisRgn, clip_rgn, clip_rgn ? RGN_AND : RGN_COPY );
}
else if (get_dc_visrect( dc, &visrect ))
{
if (!dc->region) dc->region = CreateRectRgn( 0, 0, 0, 0 );
SetRectRgn( dc->region, visrect.left, visrect.top, visrect.right, visrect.bottom );
if (clip_rgn) CombineRgn( dc->region, dc->region, clip_rgn, RGN_AND );
}
else
{
if (dc->region) DeleteObject( dc->region );
dc->region = 0;
}
physdev->funcs->pSetDeviceClipping( physdev, dc->region );
physdev->funcs->pSetDeviceClipping( physdev, get_dc_region( dc ));
}
/***********************************************************************
@ -132,11 +124,8 @@ static inline void create_default_clip_region( DC * dc )
if (dc->header.type == OBJ_MEMDC)
{
BITMAP bitmap;
GetObjectW( dc->hBitmap, sizeof(bitmap), &bitmap );
width = bitmap.bmWidth;
height = bitmap.bmHeight;
width = dc->vis_rect.right - dc->vis_rect.left;
height = dc->vis_rect.bottom - dc->vis_rect.top;
}
else
{
@ -369,6 +358,7 @@ INT WINAPI IntersectClipRect( HDC hdc, INT left, INT top, INT right, INT bottom
BOOL WINAPI PtVisible( HDC hdc, INT x, INT y )
{
POINT pt;
RECT visrect;
BOOL ret;
DC *dc = get_dc_ptr( hdc );
@ -379,7 +369,10 @@ BOOL WINAPI PtVisible( HDC hdc, INT x, INT y )
pt.y = y;
LPtoDP( hdc, &pt, 1 );
update_dc( dc );
ret = PtInRegion( get_dc_region(dc), pt.x, pt.y );
ret = (get_dc_visrect( dc, &visrect ) &&
pt.x >= visrect.left && pt.x < visrect.right &&
pt.y >= visrect.top && pt.y < visrect.bottom);
if (ret && get_dc_region( dc )) ret = PtInRegion( get_dc_region( dc ), pt.x, pt.y );
release_dc_ptr( dc );
return ret;
}
@ -390,7 +383,7 @@ BOOL WINAPI PtVisible( HDC hdc, INT x, INT y )
*/
BOOL WINAPI RectVisible( HDC hdc, const RECT* rect )
{
RECT tmpRect;
RECT tmpRect, visrect;
BOOL ret;
DC *dc = get_dc_ptr( hdc );
if (!dc) return FALSE;
@ -400,7 +393,8 @@ BOOL WINAPI RectVisible( HDC hdc, const RECT* rect )
LPtoDP( hdc, (POINT *)&tmpRect, 2 );
update_dc( dc );
ret = RectInRegion( get_dc_region(dc), &tmpRect );
ret = (get_dc_visrect( dc, &visrect ) && intersect_rect( &visrect, &visrect, &tmpRect ));
if (ret && get_dc_region( dc )) ret = RectInRegion( get_dc_region( dc ), &tmpRect );
release_dc_ptr( dc );
return ret;
}
@ -411,12 +405,20 @@ BOOL WINAPI RectVisible( HDC hdc, const RECT* rect )
*/
INT WINAPI GetClipBox( HDC hdc, LPRECT rect )
{
RECT visrect;
INT ret;
DC *dc = get_dc_ptr( hdc );
if (!dc) return ERROR;
update_dc( dc );
if (get_dc_region( dc ))
{
ret = GetRgnBox( get_dc_region( dc ), rect );
if (get_dc_visrect( dc, &visrect ) && !intersect_rect( rect, rect, &visrect ))
ret = NULLREGION;
}
else ret = get_dc_visrect( dc, rect ) ? SIMPLEREGION : NULLREGION;
if (dc->layout & LAYOUT_RTL)
{
int tmp = rect->left;

4
dlls/gdi32/gdi_private.h
View File

@ -227,7 +227,9 @@ static inline HRGN get_clip_region( DC * dc )
/* Return the total DC region (if any) */
static inline HRGN get_dc_region( DC *dc )
{
return dc->region;
if (dc->region) return dc->region;
if (dc->hVisRgn) return dc->hVisRgn;
return get_clip_region( dc );
}
/* dc.c */