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user32: Don't access cursoricon_object directly in CopyImage. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2022-02-24 01:27:24 +01:00 committed by Alexandre Julliard
parent 0fef0daa9c
commit 4f3f1c985a
1 changed files with 41 additions and 69 deletions
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110
dlls/user32/cursoricon.c
View File

@ -72,37 +72,6 @@ static int get_display_bpp(void)
return ret;
}
static struct cursoricon_object *get_icon_ptr( HICON handle )
{
struct cursoricon_object *obj = get_user_handle_ptr( handle, NTUSER_OBJ_ICON );
if (obj == OBJ_OTHER_PROCESS)
{
WARN( "icon handle %p from other process\n", handle );
obj = NULL;
}
return obj;
}
static struct cursoricon_frame *get_icon_frame( struct cursoricon_object *obj, int istep )
{
struct cursoricon_object *req_frame;
if (!obj->is_ani) return &obj->frame;
if (!(req_frame = get_icon_ptr( obj->ani.frames[istep] ))) return 0;
return &req_frame->frame;
}
static void release_icon_frame( struct cursoricon_object *obj, struct cursoricon_frame *frame )
{
if (obj->is_ani)
{
struct cursoricon_object *frameobj;
frameobj = (struct cursoricon_object *) (((char *)frame) - FIELD_OFFSET(struct cursoricon_object, frame));
release_user_handle_ptr( frameobj );
}
}
static void free_icon_frame( struct cursoricon_frame *frame )
{
if (frame->color) DeleteObject( frame->color );
@ -2481,29 +2450,31 @@ HANDLE WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
case IMAGE_ICON:
case IMAGE_CURSOR:
{
struct cursoricon_frame *frame;
struct cursoricon_object *icon;
ICONINFOEXW icon_info;
int depth = (flags & LR_MONOCHROME) ? 1 : get_display_bpp();
HICON resource_icon = NULL;
HINSTANCE module;
HICON resource_icon = 0;
LONG width, height;
ICONINFO info;
HANDLE module;
HICON res;
if (!(icon = get_icon_ptr( hnd ))) return 0;
icon_info.cbSize = sizeof(icon_info);
if (!GetIconInfoExW( hnd, &icon_info )) return 0;
if (icon->rsrc && (flags & LR_COPYFROMRESOURCE) && icon->module.Length &&
!LdrGetDllHandle( NULL, 0, &icon->module, &module ))
if (icon_info.szModName[0] && (flags & LR_COPYFROMRESOURCE) &&
(module = GetModuleHandleW( icon_info.szModName )))
{
resource_icon = CURSORICON_Load( module, icon->resname, desiredx,
desiredy, depth, !icon->is_icon, flags );
release_user_handle_ptr( icon );
if (!(icon = get_icon_ptr( resource_icon )))
{
if (resource_icon) DestroyIcon( resource_icon );
return 0;
}
const WCHAR *res = icon_info.szResName[0] ? icon_info.szResName
: MAKEINTRESOURCEW( icon_info.wResID );
resource_icon = CURSORICON_Load( module, res, desiredx, desiredy, depth,
!icon_info.fIcon, flags );
DeleteObject( icon_info.hbmColor );
DeleteObject( icon_info.hbmMask );
NtUserGetIconSize( resource_icon, 0, &width, &height );
if (!GetIconInfoExW( resource_icon, &icon_info )) return 0;
}
frame = get_icon_frame( icon, 0 );
else NtUserGetIconSize( hnd, 0, &width, &height );
height /= 2;
if (flags & LR_DEFAULTSIZE)
{
@ -2512,44 +2483,44 @@ HANDLE WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
}
else
{
if (!desiredx) desiredx = frame->width;
if (!desiredy) desiredy = frame->height;
if (!desiredx) desiredx = width;
if (!desiredy) desiredy = height;
}
info.fIcon = icon->is_icon;
info.xHotspot = frame->hotspot.x;
info.yHotspot = frame->hotspot.y;
info.fIcon = icon_info.fIcon;
info.xHotspot = icon_info.xHotspot;
info.yHotspot = icon_info.yHotspot;
if (desiredx == frame->width && desiredy == frame->height)
if (desiredx == width && desiredy == height)
{
info.hbmColor = frame->color;
info.hbmMask = frame->mask;
info.hbmColor = icon_info.hbmColor;
info.hbmMask = icon_info.hbmMask;
res = CreateIconIndirect( &info );
}
else
{
if (frame->color)
if (icon_info.hbmColor)
{
if (!(info.hbmColor = create_color_bitmap( desiredx, desiredy )))
{
release_icon_frame( icon, frame );
release_user_handle_ptr( icon );
DeleteObject( icon_info.hbmColor );
DeleteObject( icon_info.hbmMask );
if (resource_icon) DestroyIcon( resource_icon );
return 0;
}
stretch_bitmap( info.hbmColor, frame->color, desiredx, desiredy,
frame->width, frame->height );
stretch_bitmap( info.hbmColor, icon_info.hbmColor, desiredx, desiredy,
width, height );
if (!(info.hbmMask = CreateBitmap( desiredx, desiredy, 1, 1, NULL )))
{
DeleteObject( icon_info.hbmColor );
DeleteObject( icon_info.hbmMask );
DeleteObject( info.hbmColor );
release_icon_frame( icon, frame );
release_user_handle_ptr( icon );
if (resource_icon) DestroyIcon( resource_icon );
return 0;
}
stretch_bitmap( info.hbmMask, frame->mask, desiredx, desiredy,
frame->width, frame->height );
stretch_bitmap( info.hbmMask, icon_info.hbmMask, desiredx, desiredy,
width, height );
}
else
{
@ -2557,12 +2528,13 @@ HANDLE WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
if (!(info.hbmMask = CreateBitmap( desiredx, desiredy * 2, 1, 1, NULL )))
{
release_user_handle_ptr( icon );
DeleteObject( icon_info.hbmColor );
DeleteObject( icon_info.hbmMask );
if (resource_icon) DestroyIcon( resource_icon );
return 0;
}
stretch_bitmap( info.hbmMask, frame->mask, desiredx, desiredy * 2,
frame->width, frame->height * 2 );
stretch_bitmap( info.hbmMask, icon_info.hbmMask, desiredx, desiredy * 2,
width, height * 2 );
}
res = CreateIconIndirect( &info );
@ -2571,8 +2543,8 @@ HANDLE WINAPI CopyImage( HANDLE hnd, UINT type, INT desiredx,
DeleteObject( info.hbmMask );
}
release_icon_frame( icon, frame );
release_user_handle_ptr( icon );
DeleteObject( icon_info.hbmColor );
DeleteObject( icon_info.hbmMask );
if (res && (flags & LR_COPYDELETEORG)) DestroyIcon( hnd );
if (resource_icon) DestroyIcon( resource_icon );