wine/dlls/win32u/cursoricon.c

744 lines
23 KiB
C

/*
* Cursor and icon support
*
* Copyright 1995 Alexandre Julliard
* Copyright 1996 Martin Von Loewis
* Copyright 1997 Alex Korobka
* Copyright 1998 Turchanov Sergey
* Copyright 2007 Henri Verbeet
* Copyright 2009 Vincent Povirk for CodeWeavers
* Copyright 2016 Dmitry Timoshkov
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#if 0
#pragma makedep unix
#endif
#include <assert.h>
#include "ntgdi_private.h"
#include "ntuser_private.h"
#include "wine/server.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(cursor);
WINE_DECLARE_DEBUG_CHANNEL(icon);
struct cursoricon_object
{
struct user_object obj; /* object header */
struct list entry; /* entry in shared icons list */
ULONG_PTR param; /* opaque param used by 16-bit code */
UNICODE_STRING module; /* module for icons loaded from resources */
WCHAR *resname; /* resource name for icons loaded from resources */
HRSRC rsrc; /* resource for shared icons */
BOOL is_shared; /* whether this object is shared */
BOOL is_icon; /* whether icon or cursor */
BOOL is_ani; /* whether this object is a static cursor or an animated cursor */
UINT delay; /* delay between this frame and the next (in jiffies) */
union
{
struct cursoricon_frame frame; /* frame-specific icon data */
struct
{
UINT num_frames; /* number of frames in the icon/cursor */
UINT num_steps; /* number of sequence steps in the icon/cursor */
HICON *frames; /* list of animated cursor frames */
} ani;
};
};
static struct list icon_cache = LIST_INIT( icon_cache );
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;
}
BOOL process_wine_setcursor( HWND hwnd, HWND window, HCURSOR handle )
{
TRACE( "hwnd %p, window %p, hcursor %p\n", hwnd, window, handle );
user_driver->pSetCursor( window, handle );
return TRUE;
}
/***********************************************************************
* NtUserShowCursor (win32u.@)
*/
INT WINAPI NtUserShowCursor( BOOL show )
{
int increment = show ? 1 : -1;
int count;
SERVER_START_REQ( set_cursor )
{
req->flags = SET_CURSOR_COUNT;
req->show_count = increment;
wine_server_call( req );
count = reply->prev_count + increment;
}
SERVER_END_REQ;
TRACE("%d, count=%d\n", show, count );
return count;
}
/***********************************************************************
* NtUserSetCursor (win32u.@)
*/
HCURSOR WINAPI NtUserSetCursor( HCURSOR cursor )
{
struct cursoricon_object *obj;
HCURSOR old_cursor;
BOOL ret;
TRACE( "%p\n", cursor );
SERVER_START_REQ( set_cursor )
{
req->flags = SET_CURSOR_HANDLE;
req->handle = wine_server_user_handle( cursor );
if ((ret = !wine_server_call_err( req )))
old_cursor = wine_server_ptr_handle( reply->prev_handle );
}
SERVER_END_REQ;
if (!ret) return 0;
if (!(obj = get_icon_ptr( old_cursor ))) return 0;
release_user_handle_ptr( obj );
return old_cursor;
}
/***********************************************************************
* NtUserGetCursor (win32u.@)
*/
HCURSOR WINAPI NtUserGetCursor(void)
{
HCURSOR ret;
SERVER_START_REQ( set_cursor )
{
req->flags = 0;
wine_server_call( req );
ret = wine_server_ptr_handle( reply->prev_handle );
}
SERVER_END_REQ;
return ret;
}
HICON alloc_cursoricon_handle( BOOL is_icon )
{
struct cursoricon_object *obj;
HICON handle;
if (!(obj = calloc( 1, sizeof(*obj) ))) return NULL;
obj->is_icon = is_icon;
if (!(handle = alloc_user_handle( &obj->obj, NTUSER_OBJ_ICON ))) free( obj );
return handle;
}
static struct cursoricon_object *get_icon_frame_ptr( HICON handle, UINT step )
{
struct cursoricon_object *obj, *ret;
if (!(obj = get_icon_ptr( handle ))) return NULL;
if (!obj->is_ani) return obj;
if (step >= obj->ani.num_steps)
{
release_user_handle_ptr( obj );
return NULL;
}
ret = get_icon_ptr( obj->ani.frames[step] );
release_user_handle_ptr( obj );
return ret;
}
static BOOL free_icon_handle( HICON handle )
{
struct cursoricon_object *obj = free_user_handle( handle, NTUSER_OBJ_ICON );
if (obj == OBJ_OTHER_PROCESS) WARN( "icon handle %p from other process\n", handle );
else if (obj)
{
ULONG param = obj->param;
void *ret_ptr;
ULONG ret_len;
UINT i;
assert( !obj->rsrc ); /* shared icons can't be freed */
if (!obj->is_ani)
{
if (obj->frame.alpha) NtGdiDeleteObjectApp( obj->frame.alpha );
if (obj->frame.color) NtGdiDeleteObjectApp( obj->frame.color );
if (obj->frame.mask) NtGdiDeleteObjectApp( obj->frame.mask );
}
else
{
for (i = 0; i < obj->ani.num_steps; i++)
{
HICON hFrame = obj->ani.frames[i];
if (hFrame)
{
UINT j;
free_icon_handle( obj->ani.frames[i] );
for (j = 0; j < obj->ani.num_steps; j++)
{
if (obj->ani.frames[j] == hFrame) obj->ani.frames[j] = 0;
}
}
}
free( obj->ani.frames );
}
if (!IS_INTRESOURCE( obj->resname )) free( obj->resname );
free( obj );
if (param) KeUserModeCallback( NtUserCallFreeIcon, &param, sizeof(param), &ret_ptr, &ret_len );
user_driver->pDestroyCursorIcon( handle );
return TRUE;
}
return FALSE;
}
/***********************************************************************
* NtUserDestroyCursor (win32u.@)
*/
BOOL WINAPI NtUserDestroyCursor( HCURSOR cursor, ULONG arg )
{
struct cursoricon_object *obj;
BOOL shared, ret;
TRACE( "%p\n", cursor );
if (!(obj = get_icon_ptr( cursor ))) return FALSE;
shared = obj->is_shared;
release_user_handle_ptr( obj );
ret = NtUserGetCursor() != cursor;
if (!shared) free_icon_handle( cursor );
return ret;
}
/***********************************************************************
* NtUserSetCursorIconData (win32u.@)
*/
BOOL WINAPI NtUserSetCursorIconData( HCURSOR cursor, UNICODE_STRING *module, UNICODE_STRING *res_name,
struct cursoricon_desc *desc )
{
struct cursoricon_object *obj;
UINT i, j;
if (!(obj = get_icon_ptr( cursor ))) return FALSE;
if (obj->is_ani || obj->frame.width)
{
/* already initialized */
release_user_handle_ptr( obj );
RtlSetLastWin32Error( ERROR_INVALID_CURSOR_HANDLE );
return FALSE;
}
obj->delay = desc->delay;
if (desc->num_steps)
{
if (!(obj->ani.frames = calloc( desc->num_steps, sizeof(*obj->ani.frames) )))
{
release_user_handle_ptr( obj );
return FALSE;
}
obj->is_ani = TRUE;
obj->ani.num_steps = desc->num_steps;
obj->ani.num_frames = desc->num_frames;
}
else obj->frame = desc->frames[0];
if (!res_name)
obj->resname = NULL;
else if (res_name->Length)
{
obj->resname = malloc( res_name->Length + sizeof(WCHAR) );
if (obj->resname)
{
memcpy( obj->resname, res_name->Buffer, res_name->Length );
obj->resname[res_name->Length / sizeof(WCHAR)] = 0;
}
}
else
obj->resname = MAKEINTRESOURCEW( LOWORD(res_name->Buffer) );
if (module && module->Length && (obj->module.Buffer = malloc( module->Length )))
{
memcpy( obj->module.Buffer, module->Buffer, module->Length );
obj->module.Length = module->Length;
}
if (obj->is_ani)
{
/* Setup the animated frames in the correct sequence */
for (i = 0; i < desc->num_steps; i++)
{
struct cursoricon_desc frame_desc;
DWORD frame_id;
if (obj->ani.frames[i]) continue; /* already set */
frame_id = desc->frame_seq ? desc->frame_seq[i] : i;
if (frame_id >= obj->ani.num_frames)
{
frame_id = obj->ani.num_frames - 1;
ERR_(cursor)( "Sequence indicates frame past end of list, corrupt?\n" );
}
memset( &frame_desc, 0, sizeof(frame_desc) );
frame_desc.delay = desc->frame_rates ? desc->frame_rates[i] : desc->delay;
frame_desc.frames = &desc->frames[frame_id];
if (!(obj->ani.frames[i] = alloc_cursoricon_handle( obj->is_icon )) ||
!NtUserSetCursorIconData( obj->ani.frames[i], NULL, NULL, &frame_desc ))
{
release_user_handle_ptr( obj );
return 0;
}
if (desc->frame_seq)
{
for (j = i + 1; j < obj->ani.num_steps; j++)
{
if (desc->frame_seq[j] == frame_id) obj->ani.frames[j] = obj->ani.frames[i];
}
}
}
}
if (desc->flags & LR_SHARED)
{
obj->is_shared = TRUE;
if (obj->module.Length)
{
obj->rsrc = desc->rsrc;
list_add_head( &icon_cache, &obj->entry );
}
}
release_user_handle_ptr( obj );
return TRUE;
}
/***********************************************************************
* NtUserFindExistingCursorIcon (win32u.@)
*/
HICON WINAPI NtUserFindExistingCursorIcon( UNICODE_STRING *module, UNICODE_STRING *res_name, void *desc )
{
struct cursoricon_object *ptr;
HICON ret = 0;
user_lock();
LIST_FOR_EACH_ENTRY( ptr, &icon_cache, struct cursoricon_object, entry )
{
if (ptr->module.Length != module->Length) continue;
if (memcmp( ptr->module.Buffer, module->Buffer, module->Length )) continue;
/* We pass rsrc as desc argument, this is not compatible with Windows */
if (ptr->rsrc != desc) continue;
ret = ptr->obj.handle;
break;
}
user_unlock();
return ret;
}
/***********************************************************************
* NtUserGetIconSize (win32u.@)
*/
BOOL WINAPI NtUserGetIconSize( HICON handle, UINT step, LONG *width, LONG *height )
{
struct cursoricon_object *obj;
if (!(obj = get_icon_frame_ptr( handle, step )))
{
RtlSetLastWin32Error( ERROR_INVALID_CURSOR_HANDLE );
return FALSE;
}
*width = obj->frame.width;
*height = obj->frame.height * 2;
release_user_handle_ptr( obj );
return TRUE;
}
/**********************************************************************
* NtUserGetCursorFrameInfo (win32u.@)
*/
HCURSOR WINAPI NtUserGetCursorFrameInfo( HCURSOR cursor, DWORD istep, DWORD *rate_jiffies,
DWORD *num_steps )
{
struct cursoricon_object *obj;
HCURSOR ret = 0;
UINT icon_steps;
if (!rate_jiffies || !num_steps) return 0;
if (!(obj = get_icon_ptr( cursor ))) return 0;
TRACE( "%p => %d %p %p\n", cursor, (int)istep, rate_jiffies, num_steps );
icon_steps = obj->is_ani ? obj->ani.num_steps : 1;
if (istep < icon_steps || !obj->is_ani)
{
UINT icon_frames = 1;
if (obj->is_ani)
icon_frames = obj->ani.num_frames;
if (obj->is_ani && icon_frames > 1)
ret = obj->ani.frames[istep];
else
ret = cursor;
if (icon_frames == 1)
{
*rate_jiffies = 0;
*num_steps = 1;
}
else if (icon_steps == 1)
{
*num_steps = ~0;
*rate_jiffies = obj->delay;
}
else if (istep < icon_steps)
{
struct cursoricon_object *frame;
*num_steps = icon_steps;
frame = get_icon_ptr( obj->ani.frames[istep] );
if (obj->ani.num_steps == 1)
*num_steps = ~0;
else
*num_steps = obj->ani.num_steps;
*rate_jiffies = frame->delay;
release_user_handle_ptr( frame );
}
}
release_user_handle_ptr( obj );
return ret;
}
/***********************************************************************
* copy_bitmap
*
* Helper function to duplicate a bitmap.
*/
static HBITMAP copy_bitmap( HBITMAP bitmap )
{
HDC src, dst = 0;
HBITMAP new_bitmap = 0;
BITMAP bmp;
if (!bitmap) return 0;
if (!NtGdiExtGetObjectW( bitmap, sizeof(bmp), &bmp )) return 0;
if ((src = NtGdiCreateCompatibleDC( 0 )) && (dst = NtGdiCreateCompatibleDC( 0 )))
{
NtGdiSelectBitmap( src, bitmap );
if ((new_bitmap = NtGdiCreateCompatibleBitmap( src, bmp.bmWidth, bmp.bmHeight )))
{
NtGdiSelectBitmap( dst, new_bitmap );
NtGdiBitBlt( dst, 0, 0, bmp.bmWidth, bmp.bmHeight, src, 0, 0, SRCCOPY, 0, 0 );
}
}
NtGdiDeleteObjectApp( dst );
NtGdiDeleteObjectApp( src );
return new_bitmap;
}
/**********************************************************************
* NtUserGetIconInfo (win32u.@)
*/
BOOL WINAPI NtUserGetIconInfo( HICON icon, ICONINFO *info, UNICODE_STRING *module,
UNICODE_STRING *res_name, DWORD *bpp, LONG unk )
{
struct cursoricon_object *obj, *frame_obj;
BOOL ret = TRUE;
if (!(obj = get_icon_ptr( icon )))
{
RtlSetLastWin32Error( ERROR_INVALID_CURSOR_HANDLE );
return FALSE;
}
if (!(frame_obj = get_icon_frame_ptr( icon, 0 )))
{
release_user_handle_ptr( obj );
return FALSE;
}
TRACE( "%p => %dx%d\n", icon, frame_obj->frame.width, frame_obj->frame.height );
info->fIcon = obj->is_icon;
info->xHotspot = frame_obj->frame.hotspot.x;
info->yHotspot = frame_obj->frame.hotspot.y;
info->hbmColor = copy_bitmap( frame_obj->frame.color );
info->hbmMask = copy_bitmap( frame_obj->frame.mask );
if (!info->hbmMask || (!info->hbmColor && frame_obj->frame.color))
{
NtGdiDeleteObjectApp( info->hbmMask );
NtGdiDeleteObjectApp( info->hbmColor );
ret = FALSE;
}
else if (obj->module.Length)
{
if (module)
{
size_t size = min( module->MaximumLength, obj->module.Length );
if (size) memcpy( module->Buffer, obj->module.Buffer, size );
module->Length = size / sizeof(WCHAR); /* length in chars, not bytes */
}
if (res_name)
{
if (IS_INTRESOURCE( obj->resname ))
{
res_name->Buffer = obj->resname;
res_name->Length = 0;
}
else
{
size_t size = min( res_name->MaximumLength, lstrlenW( obj->resname) * sizeof(WCHAR) );
if (size) memcpy( res_name->Buffer, obj->resname, size );
res_name->Length = size / sizeof(WCHAR); /* length in chars, not bytes */
}
}
}
else
{
if (module) module->Length = 0;
if (res_name)
{
res_name->Length = 0;
res_name->Buffer = NULL;
}
}
release_user_handle_ptr( frame_obj );
release_user_handle_ptr( obj );
return ret;
}
/******************************************************************************
* NtUserDrawIconEx (win32u.@)
*/
BOOL WINAPI NtUserDrawIconEx( HDC hdc, INT x0, INT y0, HICON icon, INT width,
INT height, UINT step, HBRUSH brush, UINT flags )
{
struct cursoricon_object *obj;
HBITMAP offscreen_bitmap = 0;
HDC hdc_dest, mem_dc;
COLORREF old_fg, old_bg;
INT x, y, nStretchMode;
BOOL result = FALSE;
TRACE_(icon)( "(hdc=%p,pos=%d.%d,hicon=%p,extend=%d.%d,step=%d,br=%p,flags=0x%08x)\n",
hdc, x0, y0, icon, width, height, step, brush, flags );
if (!(obj = get_icon_frame_ptr( icon, step )))
{
FIXME_(icon)("Error retrieving icon frame %d\n", step);
return FALSE;
}
if (!(mem_dc = NtGdiCreateCompatibleDC( hdc )))
{
release_user_handle_ptr( obj );
return FALSE;
}
if (flags & DI_NOMIRROR)
FIXME_(icon)("Ignoring flag DI_NOMIRROR\n");
/* Calculate the size of the destination image. */
if (width == 0)
{
if (flags & DI_DEFAULTSIZE)
width = get_system_metrics( SM_CXICON );
else
width = obj->frame.width;
}
if (height == 0)
{
if (flags & DI_DEFAULTSIZE)
height = get_system_metrics( SM_CYICON );
else
height = obj->frame.height;
}
if (get_gdi_object_type( brush ) == NTGDI_OBJ_BRUSH)
{
HBRUSH prev_brush;
RECT r;
SetRect(&r, 0, 0, width, width);
if (!(hdc_dest = NtGdiCreateCompatibleDC(hdc))) goto failed;
if (!(offscreen_bitmap = NtGdiCreateCompatibleBitmap(hdc, width, height)))
{
NtGdiDeleteObjectApp( hdc_dest );
goto failed;
}
NtGdiSelectBitmap( hdc_dest, offscreen_bitmap );
prev_brush = NtGdiSelectBrush( hdc_dest, brush );
NtGdiPatBlt( hdc_dest, r.left, r.top, r.right - r.left, r.bottom - r.top, PATCOPY );
if (prev_brush) NtGdiSelectBrush( hdc_dest, prev_brush );
x = y = 0;
}
else
{
hdc_dest = hdc;
x = x0;
y = y0;
}
nStretchMode = set_stretch_blt_mode( hdc, STRETCH_DELETESCANS );
NtGdiGetAndSetDCDword( hdc, NtGdiSetTextColor, RGB(0,0,0), &old_fg );
NtGdiGetAndSetDCDword( hdc, NtGdiSetBkColor, RGB(255,255,255), &old_bg );
if (obj->frame.alpha && (flags & DI_IMAGE))
{
BOOL alpha_blend = TRUE;
if (get_gdi_object_type( hdc_dest ) == NTGDI_OBJ_MEMDC)
{
BITMAP bm;
HBITMAP bmp = NtGdiGetDCObject( hdc_dest, NTGDI_OBJ_SURF );
alpha_blend = NtGdiExtGetObjectW( bmp, sizeof(bm), &bm ) && bm.bmBitsPixel > 8;
}
if (alpha_blend)
{
NtGdiSelectBitmap( mem_dc, obj->frame.alpha );
if (NtGdiAlphaBlend( hdc_dest, x, y, width, height, mem_dc,
0, 0, obj->frame.width, obj->frame.height,
MAKEFOURCC( AC_SRC_OVER, 0, 255, AC_SRC_ALPHA ), 0 ))
goto done;
}
}
if (flags & DI_MASK)
{
DWORD rop = (flags & DI_IMAGE) ? SRCAND : SRCCOPY;
NtGdiSelectBitmap( mem_dc, obj->frame.mask );
NtGdiStretchBlt( hdc_dest, x, y, width, height,
mem_dc, 0, 0, obj->frame.width, obj->frame.height, rop, 0 );
}
if (flags & DI_IMAGE)
{
if (obj->frame.color)
{
DWORD rop = (flags & DI_MASK) ? SRCINVERT : SRCCOPY;
NtGdiSelectBitmap( mem_dc, obj->frame.color );
NtGdiStretchBlt( hdc_dest, x, y, width, height,
mem_dc, 0, 0, obj->frame.width, obj->frame.height, rop, 0 );
}
else
{
DWORD rop = (flags & DI_MASK) ? SRCINVERT : SRCCOPY;
NtGdiSelectBitmap( mem_dc, obj->frame.mask );
NtGdiStretchBlt( hdc_dest, x, y, width, height,
mem_dc, 0, obj->frame.height, obj->frame.width,
obj->frame.height, rop, 0 );
}
}
done:
if (offscreen_bitmap) NtGdiBitBlt( hdc, x0, y0, width, height, hdc_dest, 0, 0, SRCCOPY, 0, 0 );
NtGdiGetAndSetDCDword( hdc, NtGdiSetTextColor, old_fg, NULL );
NtGdiGetAndSetDCDword( hdc, NtGdiSetBkColor, old_bg, NULL );
nStretchMode = set_stretch_blt_mode( hdc, nStretchMode );
result = TRUE;
if (hdc_dest != hdc) NtGdiDeleteObjectApp( hdc_dest );
if (offscreen_bitmap) NtGdiDeleteObjectApp( offscreen_bitmap );
failed:
NtGdiDeleteObjectApp( mem_dc );
release_user_handle_ptr( obj );
return result;
}
ULONG_PTR get_icon_param( HICON handle )
{
ULONG_PTR ret = 0;
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 );
else if (obj)
{
ret = obj->param;
release_user_handle_ptr( obj );
}
return ret;
}
ULONG_PTR set_icon_param( HICON handle, ULONG_PTR param )
{
ULONG_PTR ret = 0;
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 );
else if (obj)
{
ret = obj->param;
obj->param = param;
release_user_handle_ptr( obj );
}
return ret;
}
/******************************************************************************
* CopyImage (win32u.so)
*/
HANDLE WINAPI CopyImage( HANDLE hwnd, UINT type, INT dx, INT dy, UINT flags )
{
void *ret_ptr;
ULONG ret_len;
NTSTATUS ret;
struct copy_image_params params =
{ .hwnd = hwnd, .type = type, .dx = dx, .dy = dy, .flags = flags };
ret = KeUserModeCallback( NtUserCopyImage, &params, sizeof(params), &ret_ptr, &ret_len );
return UlongToHandle( ret );
}
/******************************************************************************
* LoadImage (win32u.so)
*/
HANDLE WINAPI LoadImageW( HINSTANCE hinst, const WCHAR *name, UINT type,
INT dx, INT dy, UINT flags )
{
void *ret_ptr;
ULONG ret_len;
NTSTATUS ret;
struct load_image_params params =
{ .hinst = hinst, .name = name, .type = type, .dx = dx, .dy = dy, .flags = flags };
if (HIWORD(name))
{
ERR( "name %s not supported in Unix modules\n", debugstr_w( name ));
return 0;
}
ret = KeUserModeCallback( NtUserLoadImage, &params, sizeof(params), &ret_ptr, &ret_len );
return UlongToHandle( ret );
}