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ole32: Make the synthesize helpers return a STGMEDIUM. 

Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
oldstable
Huw Davies 2017-11-29 09:28:45 +00:00 committed by Alexandre Julliard
parent f186114676
commit 251e6edae5
1 changed files with 33 additions and 28 deletions
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61
dlls/ole32/datacache.c
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@ -958,12 +958,12 @@ static HRESULT copy_stg_medium(CLIPFORMAT cf, STGMEDIUM *dest_stgm,
return S_OK;
}
static HGLOBAL synthesize_dib( HBITMAP bm )
static HRESULT synthesize_dib( HBITMAP bm, STGMEDIUM *med )
{
HDC hdc = GetDC( 0 );
BITMAPINFOHEADER header;
BITMAPINFO *bmi;
HGLOBAL ret = 0;
HRESULT hr = E_FAIL;
DWORD header_size;
memset( &header, 0, sizeof(header) );
@ -971,55 +971,64 @@ static HGLOBAL synthesize_dib( HBITMAP bm )
if (!GetDIBits( hdc, bm, 0, 0, NULL, (BITMAPINFO *)&header, DIB_RGB_COLORS )) goto done;
header_size = bitmap_info_size( (BITMAPINFO *)&header, DIB_RGB_COLORS );
if (!(ret = GlobalAlloc( GMEM_MOVEABLE, header_size + header.biSizeImage ))) goto done;
bmi = GlobalLock( ret );
if (!(med->u.hGlobal = GlobalAlloc( GMEM_MOVEABLE, header_size + header.biSizeImage ))) goto done;
bmi = GlobalLock( med->u.hGlobal );
memset( bmi, 0, header_size );
memcpy( bmi, &header, header.biSize );
GetDIBits( hdc, bm, 0, abs(header.biHeight), (char *)bmi + header_size, bmi, DIB_RGB_COLORS );
GlobalUnlock( ret );
GlobalUnlock( med->u.hGlobal );
med->tymed = TYMED_HGLOBAL;
med->pUnkForRelease = NULL;
hr = S_OK;
done:
ReleaseDC( 0, hdc );
return ret;
return hr;
}
static HBITMAP synthesize_bitmap( HGLOBAL dib )
static HRESULT synthesize_bitmap( HGLOBAL dib, STGMEDIUM *med )
{
HBITMAP ret = 0;
HRESULT hr = E_FAIL;
BITMAPINFO *bmi;
HDC hdc = GetDC( 0 );
if ((bmi = GlobalLock( dib )))
{
/* FIXME: validate data size */
ret = CreateDIBitmap( hdc, &bmi->bmiHeader, CBM_INIT,
(char *)bmi + bitmap_info_size( bmi, DIB_RGB_COLORS ),
bmi, DIB_RGB_COLORS );
med->u.hBitmap = CreateDIBitmap( hdc, &bmi->bmiHeader, CBM_INIT,
(char *)bmi + bitmap_info_size( bmi, DIB_RGB_COLORS ),
bmi, DIB_RGB_COLORS );
GlobalUnlock( dib );
med->tymed = TYMED_GDI;
med->pUnkForRelease = NULL;
hr = S_OK;
}
ReleaseDC( 0, hdc );
return ret;
return hr;
}
static HENHMETAFILE synthesize_emf( HMETAFILEPICT data )
static HRESULT synthesize_emf( HMETAFILEPICT data, STGMEDIUM *med )
{
METAFILEPICT *pict;
HENHMETAFILE emf = 0;
HRESULT hr = E_FAIL;
UINT size;
void *bits;
if (!(pict = GlobalLock( data ))) return 0;
if (!(pict = GlobalLock( data ))) return hr;
size = GetMetaFileBitsEx( pict->hMF, 0, NULL );
if ((bits = HeapAlloc( GetProcessHeap(), 0, size )))
{
GetMetaFileBitsEx( pict->hMF, size, bits );
emf = SetWinMetaFileBits( size, bits, NULL, pict );
med->u.hEnhMetaFile = SetWinMetaFileBits( size, bits, NULL, pict );
HeapFree( GetProcessHeap(), 0, bits );
med->tymed = TYMED_ENHMF;
med->pUnkForRelease = NULL;
hr = S_OK;
}
GlobalUnlock( data );
return emf;
return hr;
}
static HRESULT DataCacheEntry_SetData(DataCacheEntry *cache_entry,
@ -1028,6 +1037,7 @@ static HRESULT DataCacheEntry_SetData(DataCacheEntry *cache_entry,
BOOL fRelease)
{
STGMEDIUM copy;
HRESULT hr;
if ((!cache_entry->fmtetc.cfFormat && !formatetc->cfFormat) ||
(cache_entry->fmtetc.tymed == TYMED_NULL && formatetc->tymed == TYMED_NULL) ||
@ -1042,17 +1052,16 @@ static HRESULT DataCacheEntry_SetData(DataCacheEntry *cache_entry,
if (formatetc->cfFormat == CF_BITMAP)
{
copy.tymed = TYMED_HGLOBAL;
copy.u.hGlobal = synthesize_dib( stgmedium->u.hBitmap );
copy.pUnkForRelease = NULL;
hr = synthesize_dib( stgmedium->u.hBitmap, &copy );
if (FAILED(hr)) return hr;
if (fRelease) ReleaseStgMedium(stgmedium);
stgmedium = &copy;
fRelease = TRUE;
}
else if (formatetc->cfFormat == CF_METAFILEPICT && cache_entry->fmtetc.cfFormat == CF_ENHMETAFILE)
{
copy.tymed = TYMED_ENHMF;
copy.u.hEnhMetaFile = synthesize_emf( stgmedium->u.hMetaFilePict );
hr = synthesize_emf( stgmedium->u.hMetaFilePict, &copy );
if (FAILED(hr)) return hr;
if (fRelease) ReleaseStgMedium(stgmedium);
stgmedium = &copy;
fRelease = TRUE;
@ -1079,12 +1088,8 @@ static HRESULT DataCacheEntry_GetData(DataCacheEntry *cache_entry, FORMATETC *fm
return OLE_E_BLANK;
if (fmt->cfFormat == CF_BITMAP)
{
stgmedium->tymed = TYMED_GDI;
stgmedium->u.hBitmap = synthesize_bitmap( cache_entry->stgmedium.u.hGlobal );
stgmedium->pUnkForRelease = NULL;
return S_OK;
}
return synthesize_bitmap( cache_entry->stgmedium.u.hGlobal, stgmedium );
return copy_stg_medium(cache_entry->fmtetc.cfFormat, stgmedium, &cache_entry->stgmedium);
}