1 /* OLE DB Conversion library
3 * Copyright 2009 Huw Davies
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 #define NONAMELESSUNION
24 #define NONAMELESSSTRUCT
33 #include "oledb_private.h"
35 #include "wine/debug.h"
37 WINE_DEFAULT_DEBUG_CHANNEL(oledb);
41 IDataConvert IDataConvert_iface;
42 IDCInfo IDCInfo_iface;
46 UINT version; /* Set by IDCInfo_SetInfo */
49 static inline convert *impl_from_IDataConvert(IDataConvert *iface)
51 return CONTAINING_RECORD(iface, convert, IDataConvert_iface);
54 static inline convert *impl_from_IDCInfo(IDCInfo *iface)
56 return CONTAINING_RECORD(iface, convert, IDCInfo_iface);
59 static HRESULT WINAPI convert_QueryInterface(IDataConvert* iface,
63 convert *This = impl_from_IDataConvert(iface);
64 TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), obj);
68 if(IsEqualIID(riid, &IID_IUnknown) ||
69 IsEqualIID(riid, &IID_IDataConvert))
73 else if(IsEqualIID(riid, &IID_IDCInfo))
75 *obj = &This->IDCInfo_iface;
79 FIXME("interface %s not implemented\n", debugstr_guid(riid));
83 IDataConvert_AddRef(iface);
88 static ULONG WINAPI convert_AddRef(IDataConvert* iface)
90 convert *This = impl_from_IDataConvert(iface);
91 TRACE("(%p)\n", This);
93 return InterlockedIncrement(&This->ref);
97 static ULONG WINAPI convert_Release(IDataConvert* iface)
99 convert *This = impl_from_IDataConvert(iface);
102 TRACE("(%p)\n", This);
104 ref = InterlockedDecrement(&This->ref);
107 HeapFree(GetProcessHeap(), 0, This);
113 static int get_length(DBTYPE type)
124 return sizeof(VARIANT_BOOL);
134 case DBTYPE_DBTIMESTAMP:
135 return sizeof(DBTIMESTAMP);
140 case DBTYPE_FILETIME:
141 return sizeof(FILETIME);
146 case DBTYPE_BYREF | DBTYPE_WSTR:
149 FIXME("Unhandled type %04x\n", type);
154 static HRESULT WINAPI convert_DataConvert(IDataConvert* iface,
155 DBTYPE src_type, DBTYPE dst_type,
156 DBLENGTH src_len, DBLENGTH *dst_len,
157 void *src, void *dst,
158 DBLENGTH dst_max_len,
159 DBSTATUS src_status, DBSTATUS *dst_status,
160 BYTE precision, BYTE scale,
163 convert *This = impl_from_IDataConvert(iface);
166 TRACE("(%p)->(%d, %d, %ld, %p, %p, %p, %ld, %d, %p, %d, %d, %x)\n", This,
167 src_type, dst_type, src_len, dst_len, src, dst, dst_max_len,
168 src_status, dst_status, precision, scale, flags);
170 *dst_status = DBSTATUS_E_BADACCESSOR;
172 if(IDataConvert_CanConvert(iface, src_type, dst_type) != S_OK)
174 return DB_E_UNSUPPORTEDCONVERSION;
177 if(src_type == DBTYPE_STR)
182 if(flags & DBDATACONVERT_LENGTHFROMNTS)
183 len = MultiByteToWideChar(CP_ACP, 0, src, -1, NULL, 0) - 1;
185 len = MultiByteToWideChar(CP_ACP, 0, src, src_len, NULL, 0);
186 b = SysAllocStringLen(NULL, len);
187 if(!b) return E_OUTOFMEMORY;
188 if(flags & DBDATACONVERT_LENGTHFROMNTS)
189 MultiByteToWideChar(CP_ACP, 0, src, -1, b, len + 1);
191 MultiByteToWideChar(CP_ACP, 0, src, src_len, b, len);
193 hr = IDataConvert_DataConvert(iface, DBTYPE_BSTR, dst_type, 0, dst_len,
194 &b, dst, dst_max_len, src_status, dst_status,
195 precision, scale, flags);
201 if(src_type == DBTYPE_WSTR)
205 if(flags & DBDATACONVERT_LENGTHFROMNTS)
206 b = SysAllocString(src);
208 b = SysAllocStringLen(src, src_len / 2);
209 if(!b) return E_OUTOFMEMORY;
210 hr = IDataConvert_DataConvert(iface, DBTYPE_BSTR, dst_type, 0, dst_len,
211 &b, dst, dst_max_len, src_status, dst_status,
212 precision, scale, flags);
221 signed short *d = dst;
225 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
226 case DBTYPE_I2: *d = *(signed short*)src; hr = S_OK; break;
227 case DBTYPE_I4: hr = VarI2FromI4(*(signed int*)src, d); break;
228 case DBTYPE_R4: hr = VarI2FromR4(*(FLOAT*)src, d); break;
229 case DBTYPE_R8: hr = VarI2FromR8(*(double*)src, d); break;
230 case DBTYPE_CY: hr = VarI2FromCy(*(CY*)src, d); break;
231 case DBTYPE_DATE: hr = VarI2FromDate(*(DATE*)src, d); break;
232 case DBTYPE_BSTR: hr = VarI2FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
233 case DBTYPE_BOOL: hr = VarI2FromBool(*(VARIANT_BOOL*)src, d); break;
234 case DBTYPE_DECIMAL: hr = VarI2FromDec((DECIMAL*)src, d); break;
235 case DBTYPE_I1: hr = VarI2FromI1(*(signed char*)src, d); break;
236 case DBTYPE_UI1: hr = VarI2FromUI1(*(BYTE*)src, d); break;
237 case DBTYPE_UI2: hr = VarI2FromUI2(*(WORD*)src, d); break;
238 case DBTYPE_UI4: hr = VarI2FromUI4(*(DWORD*)src, d); break;
239 case DBTYPE_I8: hr = VarI2FromI8(*(LONGLONG*)src, d); break;
240 case DBTYPE_UI8: hr = VarI2FromUI8(*(ULONGLONG*)src, d); break;
243 if ((hr = VariantChangeType(&tmp, (VARIANT*)src, 0, VT_I2)) == S_OK)
246 default: FIXME("Unimplemented conversion %04x -> I2\n", src_type); return E_NOTIMPL;
257 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
258 case DBTYPE_I2: hr = VarI4FromI2(*(signed short*)src, d); break;
259 case DBTYPE_I4: *d = *(signed int*)src; hr = S_OK; break;
260 case DBTYPE_R4: hr = VarI4FromR4(*(FLOAT*)src, d); break;
261 case DBTYPE_R8: hr = VarI4FromR8(*(double*)src, d); break;
262 case DBTYPE_CY: hr = VarI4FromCy(*(CY*)src, d); break;
263 case DBTYPE_DATE: hr = VarI4FromDate(*(DATE*)src, d); break;
264 case DBTYPE_BSTR: hr = VarI4FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
265 case DBTYPE_BOOL: hr = VarI4FromBool(*(VARIANT_BOOL*)src, d); break;
266 case DBTYPE_DECIMAL: hr = VarI4FromDec((DECIMAL*)src, d); break;
267 case DBTYPE_I1: hr = VarI4FromI1(*(signed char*)src, d); break;
268 case DBTYPE_UI1: hr = VarI4FromUI1(*(BYTE*)src, d); break;
269 case DBTYPE_UI2: hr = VarI4FromUI2(*(WORD*)src, d); break;
270 case DBTYPE_UI4: hr = VarI4FromUI4(*(DWORD*)src, d); break;
271 case DBTYPE_I8: hr = VarI4FromI8(*(LONGLONG*)src, d); break;
272 case DBTYPE_UI8: hr = VarI4FromUI8(*(ULONGLONG*)src, d); break;
275 if ((hr = VariantChangeType(&tmp, (VARIANT*)src, 0, VT_I4)) == S_OK)
278 default: FIXME("Unimplemented conversion %04x -> I4\n", src_type); return E_NOTIMPL;
288 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
289 case DBTYPE_I2: hr = VarR4FromI2(*(signed short*)src, d); break;
290 case DBTYPE_I4: hr = VarR4FromI4(*(signed int*)src, d); break;
291 case DBTYPE_R4: *d = *(FLOAT*)src; hr = S_OK; break;
292 case DBTYPE_R8: hr = VarR4FromR8(*(double*)src, d); break;
293 case DBTYPE_CY: hr = VarR4FromCy(*(CY*)src, d); break;
294 case DBTYPE_DATE: hr = VarR4FromDate(*(DATE*)src, d); break;
295 case DBTYPE_BSTR: hr = VarR4FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
296 case DBTYPE_BOOL: hr = VarR4FromBool(*(VARIANT_BOOL*)src, d); break;
297 case DBTYPE_DECIMAL: hr = VarR4FromDec((DECIMAL*)src, d); break;
298 case DBTYPE_I1: hr = VarR4FromI1(*(signed char*)src, d); break;
299 case DBTYPE_UI1: hr = VarR4FromUI1(*(BYTE*)src, d); break;
300 case DBTYPE_UI2: hr = VarR4FromUI2(*(WORD*)src, d); break;
301 case DBTYPE_UI4: hr = VarR4FromUI4(*(DWORD*)src, d); break;
302 case DBTYPE_I8: hr = VarR4FromI8(*(LONGLONG*)src, d); break;
303 case DBTYPE_UI8: hr = VarR4FromUI8(*(ULONGLONG*)src, d); break;
304 default: FIXME("Unimplemented conversion %04x -> R4\n", src_type); return E_NOTIMPL;
313 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
314 case DBTYPE_I1: hr = VarR8FromI1(*(signed char*)src, d); break;
315 case DBTYPE_I2: hr = VarR8FromI2(*(signed short*)src, d); break;
316 case DBTYPE_I4: hr = VarR8FromI4(*(signed int*)src, d); break;
317 case DBTYPE_I8: hr = VarR8FromI8(*(LONGLONG*)src, d); break;
318 case DBTYPE_UI1: hr = VarR8FromUI1(*(BYTE*)src, d); break;
319 case DBTYPE_UI2: hr = VarR8FromUI2(*(WORD*)src, d); break;
320 case DBTYPE_UI4: hr = VarR8FromUI4(*(DWORD*)src, d); break;
321 case DBTYPE_UI8: hr = VarR8FromUI8(*(ULONGLONG*)src, d); break;
322 case DBTYPE_R4: hr = VarR8FromR4(*(FLOAT*)src, d); break;
323 case DBTYPE_R8: *d = *(DOUBLE*)src; hr = S_OK; break;
324 case DBTYPE_CY: hr = VarR8FromCy(*(CY*)src, d); break;
325 case DBTYPE_DATE: hr = VarR8FromDate(*(DATE*)src, d); break;
326 case DBTYPE_BSTR: hr = VarR8FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
327 case DBTYPE_BOOL: hr = VarR8FromBool(*(VARIANT_BOOL*)src, d); break;
328 case DBTYPE_DECIMAL: hr = VarR8FromDec((DECIMAL*)src, d); break;
329 default: FIXME("Unimplemented conversion %04x -> R8\n", src_type); return E_NOTIMPL;
338 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
339 case DBTYPE_I1: hr = VarBoolFromI1(*(signed char*)src, d); break;
340 case DBTYPE_I2: hr = VarBoolFromI2(*(signed short*)src, d); break;
341 case DBTYPE_I4: hr = VarBoolFromI4(*(signed int*)src, d); break;
342 case DBTYPE_I8: hr = VarBoolFromI8(*(LONGLONG*)src, d); break;
343 case DBTYPE_UI1: hr = VarBoolFromUI1(*(BYTE*)src, d); break;
344 case DBTYPE_UI2: hr = VarBoolFromUI2(*(WORD*)src, d); break;
345 case DBTYPE_UI4: hr = VarBoolFromUI4(*(DWORD*)src, d); break;
346 case DBTYPE_UI8: hr = VarBoolFromUI8(*(ULONGLONG*)src, d); break;
347 case DBTYPE_R4: hr = VarBoolFromR4(*(FLOAT*)src, d); break;
348 case DBTYPE_R8: hr = VarBoolFromR8(*(DOUBLE*)src, d); break;
349 case DBTYPE_CY: hr = VarBoolFromCy(*(CY*)src, d); break;
350 case DBTYPE_DATE: hr = VarBoolFromDate(*(DATE*)src, d); break;
351 case DBTYPE_BSTR: hr = VarBoolFromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
352 case DBTYPE_BOOL: *d = *(VARIANT_BOOL*)src; hr = S_OK; break;
353 case DBTYPE_DECIMAL: hr = VarBoolFromDec((DECIMAL*)src, d); break;
354 default: FIXME("Unimplemented conversion %04x -> BOOL\n", src_type); return E_NOTIMPL;
363 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
364 case DBTYPE_I1: hr = VarDateFromI1(*(signed char*)src, d); break;
365 case DBTYPE_I2: hr = VarDateFromI2(*(signed short*)src, d); break;
366 case DBTYPE_I4: hr = VarDateFromI4(*(signed int*)src, d); break;
367 case DBTYPE_I8: hr = VarDateFromI8(*(LONGLONG*)src, d); break;
368 case DBTYPE_UI1: hr = VarDateFromUI1(*(BYTE*)src, d); break;
369 case DBTYPE_UI2: hr = VarDateFromUI2(*(WORD*)src, d); break;
370 case DBTYPE_UI4: hr = VarDateFromUI4(*(DWORD*)src, d); break;
371 case DBTYPE_UI8: hr = VarDateFromUI8(*(ULONGLONG*)src, d); break;
372 case DBTYPE_R4: hr = VarDateFromR4(*(FLOAT*)src, d); break;
373 case DBTYPE_R8: hr = VarDateFromR8(*(DOUBLE*)src, d); break;
374 case DBTYPE_CY: hr = VarDateFromCy(*(CY*)src, d); break;
375 case DBTYPE_DATE: *d = *(DATE*)src; hr = S_OK; break;
376 case DBTYPE_BSTR: hr = VarDateFromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
377 case DBTYPE_BOOL: hr = VarDateFromBool(*(VARIANT_BOOL*)src, d); break;
378 case DBTYPE_DECIMAL: hr = VarDateFromDec((DECIMAL*)src, d); break;
379 case DBTYPE_DBTIMESTAMP:
382 DBTIMESTAMP *ts=(DBTIMESTAMP*)src;
385 st.wMonth = ts->month;
388 st.wMinute = ts->minute;
389 st.wSecond = ts->second;
390 st.wMilliseconds = ts->fraction/1000000;
391 hr = (SystemTimeToVariantTime(&st, d) ? S_OK : E_FAIL);
394 default: FIXME("Unimplemented conversion %04x -> DATE\n", src_type); return E_NOTIMPL;
398 case DBTYPE_DBTIMESTAMP:
403 case DBTYPE_EMPTY: memset(d, 0, sizeof(DBTIMESTAMP)); hr = S_OK; break;
404 case DBTYPE_DBTIMESTAMP: memcpy(d, src, sizeof(DBTIMESTAMP)); hr = S_OK; break;
408 hr = (VariantTimeToSystemTime(*(double*)src, &st) ? S_OK : E_FAIL);
410 d->month = st.wMonth;
413 d->minute = st.wMinute;
414 d->second = st.wSecond;
415 d->fraction = st.wMilliseconds * 1000000;
418 default: FIXME("Unimplemented conversion %04x -> DBTIMESTAMP\n", src_type); return E_NOTIMPL;
428 case DBTYPE_EMPTY: d->int64 = 0; hr = S_OK; break;
429 case DBTYPE_I2: hr = VarCyFromI2(*(signed short*)src, d); break;
430 case DBTYPE_I4: hr = VarCyFromI4(*(signed int*)src, d); break;
431 case DBTYPE_R4: hr = VarCyFromR4(*(FLOAT*)src, d); break;
432 case DBTYPE_R8: hr = VarCyFromR8(*(double*)src, d); break;
433 case DBTYPE_CY: *d = *(CY*)src; hr = S_OK; break;
434 case DBTYPE_DATE: hr = VarCyFromDate(*(DATE*)src, d); break;
435 case DBTYPE_BSTR: hr = VarCyFromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
436 case DBTYPE_BOOL: hr = VarCyFromBool(*(VARIANT_BOOL*)src, d); break;
437 case DBTYPE_DECIMAL: hr = VarCyFromDec((DECIMAL*)src, d); break;
438 case DBTYPE_I1: hr = VarCyFromI1(*(signed char*)src, d); break;
439 case DBTYPE_UI1: hr = VarCyFromUI1(*(BYTE*)src, d); break;
440 case DBTYPE_UI2: hr = VarCyFromUI2(*(WORD*)src, d); break;
441 case DBTYPE_UI4: hr = VarCyFromUI4(*(DWORD*)src, d); break;
442 case DBTYPE_I8: hr = VarCyFromI8(*(LONGLONG*)src, d); break;
443 case DBTYPE_UI8: hr = VarCyFromUI8(*(ULONGLONG*)src, d); break;
444 default: FIXME("Unimplemented conversion %04x -> CY\n", src_type); return E_NOTIMPL;
454 case DBTYPE_EMPTY: *d = SysAllocStringLen(NULL, 0); hr = *d ? S_OK : E_OUTOFMEMORY; break;
455 case DBTYPE_I2: hr = VarBstrFromI2(*(signed short*)src, LOCALE_USER_DEFAULT, 0, d); break;
456 case DBTYPE_I4: hr = VarBstrFromI4(*(signed int*)src, LOCALE_USER_DEFAULT, 0, d); break;
457 case DBTYPE_R4: hr = VarBstrFromR4(*(FLOAT*)src, LOCALE_USER_DEFAULT, 0, d); break;
458 case DBTYPE_R8: hr = VarBstrFromR8(*(double*)src, LOCALE_USER_DEFAULT, 0, d); break;
459 case DBTYPE_CY: hr = VarBstrFromCy(*(CY*)src, LOCALE_USER_DEFAULT, 0, d); break;
460 case DBTYPE_DATE: hr = VarBstrFromDate(*(DATE*)src, LOCALE_USER_DEFAULT, 0, d); break;
461 case DBTYPE_BSTR: *d = SysAllocStringLen(*(BSTR*)src, SysStringLen(*(BSTR*)src)); hr = *d ? S_OK : E_OUTOFMEMORY; break;
462 case DBTYPE_BOOL: hr = VarBstrFromBool(*(VARIANT_BOOL*)src, LOCALE_USER_DEFAULT, 0, d); break;
463 case DBTYPE_DECIMAL: hr = VarBstrFromDec((DECIMAL*)src, LOCALE_USER_DEFAULT, 0, d); break;
464 case DBTYPE_I1: hr = VarBstrFromI1(*(signed char*)src, LOCALE_USER_DEFAULT, 0, d); break;
465 case DBTYPE_UI1: hr = VarBstrFromUI1(*(BYTE*)src, LOCALE_USER_DEFAULT, 0, d); break;
466 case DBTYPE_UI2: hr = VarBstrFromUI2(*(WORD*)src, LOCALE_USER_DEFAULT, 0, d); break;
467 case DBTYPE_UI4: hr = VarBstrFromUI4(*(DWORD*)src, LOCALE_USER_DEFAULT, 0, d); break;
468 case DBTYPE_I8: hr = VarBstrFromI8(*(LONGLONG*)src, LOCALE_USER_DEFAULT, 0, d); break;
469 case DBTYPE_UI8: hr = VarBstrFromUI8(*(ULONGLONG*)src, LOCALE_USER_DEFAULT, 0, d); break;
473 const GUID *id = (const GUID *)src;
475 '{','%','0','8','X','-','%','0','4','X','-','%','0','4','X','-',
476 '%','0','2','X','%','0','2','X','-',
477 '%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','}',0};
478 wsprintfW(szBuff, format,
479 id->Data1, id->Data2, id->Data3,
480 id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
481 id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7] );
482 *d = SysAllocString(szBuff);
483 hr = *d ? S_OK : E_OUTOFMEMORY;
488 *d = SysAllocStringLen(NULL, 2 * src_len);
493 const char hexchars[] = "0123456789ABCDEF";
495 unsigned char *p = src;
498 *s++ = hexchars[(*p >> 4) & 0x0F];
499 *s++ = hexchars[(*p) & 0x0F];
506 default: FIXME("Unimplemented conversion %04x -> BSTR\n", src_type); return E_NOTIMPL;
516 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
517 case DBTYPE_I2: hr = VarUI1FromI2(*(signed short*)src, d); break;
518 case DBTYPE_I4: hr = VarUI1FromI4(*(signed int*)src, d); break;
519 case DBTYPE_R4: hr = VarUI1FromR4(*(FLOAT*)src, d); break;
520 case DBTYPE_R8: hr = VarUI1FromR8(*(double*)src, d); break;
521 case DBTYPE_CY: hr = VarUI1FromCy(*(CY*)src, d); break;
522 case DBTYPE_DATE: hr = VarUI1FromDate(*(DATE*)src, d); break;
523 case DBTYPE_BSTR: hr = VarUI1FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
524 case DBTYPE_BOOL: hr = VarUI1FromBool(*(VARIANT_BOOL*)src, d); break;
525 case DBTYPE_DECIMAL: hr = VarUI1FromDec((DECIMAL*)src, d); break;
526 case DBTYPE_I1: hr = VarUI1FromI1(*(signed char*)src, d); break;
527 case DBTYPE_UI1: *d = *(BYTE*)src; hr = S_OK; break;
528 case DBTYPE_UI2: hr = VarUI1FromUI2(*(WORD*)src, d); break;
529 case DBTYPE_UI4: hr = VarUI1FromUI4(*(DWORD*)src, d); break;
530 case DBTYPE_I8: hr = VarUI1FromI8(*(LONGLONG*)src, d); break;
531 case DBTYPE_UI8: hr = VarUI1FromUI8(*(ULONGLONG*)src, d); break;
532 default: FIXME("Unimplemented conversion %04x -> UI1\n", src_type); return E_NOTIMPL;
542 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
543 case DBTYPE_I2: hr = VarUI4FromI2(*(signed short*)src, d); break;
544 case DBTYPE_I4: hr = VarUI4FromI4(*(signed int*)src, d); break;
545 case DBTYPE_R4: hr = VarUI4FromR4(*(FLOAT*)src, d); break;
546 case DBTYPE_R8: hr = VarUI4FromR8(*(double*)src, d); break;
547 case DBTYPE_CY: hr = VarUI4FromCy(*(CY*)src, d); break;
548 case DBTYPE_DATE: hr = VarUI4FromDate(*(DATE*)src, d); break;
549 case DBTYPE_BSTR: hr = VarUI4FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
550 case DBTYPE_BOOL: hr = VarUI4FromBool(*(VARIANT_BOOL*)src, d); break;
551 case DBTYPE_DECIMAL: hr = VarUI4FromDec((DECIMAL*)src, d); break;
552 case DBTYPE_I1: hr = VarUI4FromI1(*(signed char*)src, d); break;
553 case DBTYPE_UI1: hr = VarUI4FromUI1(*(BYTE*)src, d); break;
554 case DBTYPE_UI2: hr = VarUI4FromUI2(*(WORD*)src, d); break;
555 case DBTYPE_UI4: *d = *(DWORD*)src; hr = S_OK; break;
556 case DBTYPE_I8: hr = VarUI4FromI8(*(LONGLONG*)src, d); break;
557 case DBTYPE_UI8: hr = VarUI4FromUI8(*(ULONGLONG*)src, d); break;
558 default: FIXME("Unimplemented conversion %04x -> UI4\n", src_type); return E_NOTIMPL;
568 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
569 case DBTYPE_I2: hr = VarUI8FromI2(*(signed short*)src, d); break;
570 case DBTYPE_I4: {LONGLONG s = *(signed int*)src; hr = VarUI8FromI8(s, d); break;}
571 case DBTYPE_R4: hr = VarUI8FromR4(*(FLOAT*)src, d); break;
572 case DBTYPE_R8: hr = VarUI8FromR8(*(double*)src, d); break;
573 case DBTYPE_CY: hr = VarUI8FromCy(*(CY*)src, d); break;
574 case DBTYPE_DATE: hr = VarUI8FromDate(*(DATE*)src, d); break;
575 case DBTYPE_BSTR: hr = VarUI8FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
576 case DBTYPE_BOOL: hr = VarUI8FromBool(*(VARIANT_BOOL*)src, d); break;
577 case DBTYPE_DECIMAL: hr = VarUI8FromDec((DECIMAL*)src, d); break;
578 case DBTYPE_I1: hr = VarUI8FromI1(*(signed char*)src, d); break;
579 case DBTYPE_UI1: hr = VarUI8FromUI1(*(BYTE*)src, d); break;
580 case DBTYPE_UI2: hr = VarUI8FromUI2(*(WORD*)src, d); break;
581 case DBTYPE_UI4: hr = VarUI8FromUI4(*(DWORD*)src, d); break;
582 case DBTYPE_I8: hr = VarUI8FromI8(*(LONGLONG*)src, d); break;
583 case DBTYPE_UI8: *d = *(ULONGLONG*)src; hr = S_OK; break;
584 default: FIXME("Unimplemented conversion %04x -> UI8\n", src_type); return E_NOTIMPL;
589 case DBTYPE_FILETIME:
594 case DBTYPE_EMPTY: d->dwLowDateTime = d->dwHighDateTime = 0; hr = S_OK; break;
595 case DBTYPE_FILETIME: *d = *(FILETIME*)src; hr = S_OK; break;
596 default: FIXME("Unimplemented conversion %04x -> FILETIME\n", src_type); return E_NOTIMPL;
606 case DBTYPE_EMPTY: *d = GUID_NULL; hr = S_OK; break;
607 case DBTYPE_GUID: *d = *(GUID*)src; hr = S_OK; break;
608 default: FIXME("Unimplemented conversion %04x -> GUID\n", src_type); return E_NOTIMPL;
618 hr = IDataConvert_DataConvert(iface, src_type, DBTYPE_BSTR, src_len, &bstr_len,
619 src, &b, sizeof(BSTR), src_status, dst_status,
620 precision, scale, flags);
621 if(hr != S_OK) return hr;
622 bstr_len = SysStringLen(b);
623 *dst_len = bstr_len * sizeof(WCHAR); /* Doesn't include size for '\0' */
624 *dst_status = DBSTATUS_S_OK;
625 bytes_to_copy = min(*dst_len + sizeof(WCHAR), dst_max_len);
628 if(bytes_to_copy >= sizeof(WCHAR))
630 memcpy(dst, b, bytes_to_copy - sizeof(WCHAR));
631 *((WCHAR*)dst + bytes_to_copy / sizeof(WCHAR) - 1) = 0;
632 if(bytes_to_copy < *dst_len + sizeof(WCHAR))
633 *dst_status = DBSTATUS_S_TRUNCATED;
637 *dst_status = DBSTATUS_E_DATAOVERFLOW;
638 hr = DB_E_ERRORSOCCURRED;
649 hr = IDataConvert_DataConvert(iface, src_type, DBTYPE_BSTR, src_len, &bstr_len,
650 src, &b, sizeof(BSTR), src_status, dst_status,
651 precision, scale, flags);
652 if(hr != S_OK) return hr;
653 bstr_len = SysStringLen(b);
654 *dst_len = bstr_len * sizeof(char); /* Doesn't include size for '\0' */
655 *dst_status = DBSTATUS_S_OK;
656 bytes_to_copy = min(*dst_len + sizeof(char), dst_max_len);
659 if(bytes_to_copy >= sizeof(char))
661 WideCharToMultiByte(CP_ACP, 0, b, bytes_to_copy - sizeof(char), dst, dst_max_len, NULL, NULL);
662 *((char *)dst + bytes_to_copy / sizeof(char) - 1) = 0;
663 if(bytes_to_copy < *dst_len + sizeof(char))
664 *dst_status = DBSTATUS_S_TRUNCATED;
668 *dst_status = DBSTATUS_E_DATAOVERFLOW;
669 hr = DB_E_ERRORSOCCURRED;
676 case DBTYPE_BYREF | DBTYPE_WSTR:
681 hr = IDataConvert_DataConvert(iface, src_type, DBTYPE_BSTR, src_len, &bstr_len,
682 src, &b, sizeof(BSTR), src_status, dst_status,
683 precision, scale, flags);
684 if(hr != S_OK) return hr;
686 bstr_len = SysStringLen(b) * sizeof(WCHAR);
687 *dst_len = bstr_len; /* Doesn't include size for '\0' */
689 *d = CoTaskMemAlloc(bstr_len + sizeof(WCHAR));
690 if(*d) memcpy(*d, b, bstr_len + sizeof(WCHAR));
691 else hr = E_OUTOFMEMORY;
697 FIXME("Unimplemented conversion %04x -> %04x\n", src_type, dst_type);
702 if(hr == DISP_E_OVERFLOW)
704 *dst_status = DBSTATUS_E_DATAOVERFLOW;
705 *dst_len = get_length(dst_type);
706 hr = DB_E_ERRORSOCCURRED;
710 *dst_status = DBSTATUS_S_OK;
711 *dst_len = get_length(dst_type);
717 static inline WORD get_dbtype_class(DBTYPE type)
744 case DBTYPE_DBTIMESTAMP:
745 return DBTYPE_DBDATE;
750 /* Many src types will convert to this group of dst types */
751 static inline BOOL common_class(WORD dst_class)
771 static inline BOOL array_type(DBTYPE type)
773 return (type >= DBTYPE_I2 && type <= DBTYPE_UI4);
776 static HRESULT WINAPI convert_CanConvert(IDataConvert* iface,
777 DBTYPE src_type, DBTYPE dst_type)
779 convert *This = impl_from_IDataConvert(iface);
780 DBTYPE src_base_type = src_type & 0x1ff;
781 DBTYPE dst_base_type = dst_type & 0x1ff;
782 WORD dst_class = get_dbtype_class(dst_base_type);
784 TRACE("(%p)->(%d, %d)\n", This, src_type, dst_type);
786 if(src_type & DBTYPE_VECTOR || dst_type & DBTYPE_VECTOR) return S_FALSE;
788 if(src_type & DBTYPE_ARRAY)
790 if(!array_type(src_base_type)) return S_FALSE;
791 if(dst_type & DBTYPE_ARRAY)
793 if(src_type == dst_type) return S_OK;
796 if(dst_type == DBTYPE_VARIANT) return S_OK;
800 if(dst_type & DBTYPE_ARRAY)
802 if(!array_type(dst_base_type)) return S_FALSE;
803 if(src_type == DBTYPE_IDISPATCH || src_type == DBTYPE_VARIANT) return S_OK;
807 if(dst_type & DBTYPE_BYREF)
808 if(dst_base_type != DBTYPE_BYTES && dst_base_type != DBTYPE_STR && dst_base_type != DBTYPE_WSTR)
811 switch(get_dbtype_class(src_base_type))
814 if(common_class(dst_class)) return S_OK;
819 case DBTYPE_FILETIME:
822 if(dst_base_type == DBTYPE_DBTIMESTAMP) return S_OK;
827 switch(dst_base_type)
831 case DBTYPE_FILETIME: return S_OK;
832 default: return S_FALSE;
836 if(dst_base_type == DBTYPE_BYTES) return S_OK;
839 if(dst_base_type == DBTYPE_DATE) return S_OK;
842 if(common_class(dst_class)) return S_OK;
843 if(dst_class == DBTYPE_DBDATE) return S_OK;
847 if(dst_base_type == DBTYPE_DATE) return S_OK;
850 if(common_class(dst_class)) return S_OK;
854 if(common_class(dst_class)) return S_OK;
855 switch(dst_base_type)
858 case DBTYPE_FILETIME: return S_OK;
859 default: return S_FALSE;
875 case DBTYPE_FILETIME:
877 default: return S_FALSE;
880 case DBTYPE_IDISPATCH:
882 switch(dst_base_type)
884 case DBTYPE_IDISPATCH:
886 case DBTYPE_IUNKNOWN:
891 if(common_class(dst_class)) return S_OK;
898 case DBTYPE_FILETIME:
900 default: return S_FALSE;
904 switch(dst_base_type)
911 default: return S_FALSE;
914 case DBTYPE_IUNKNOWN:
915 switch(dst_base_type)
919 case DBTYPE_IDISPATCH:
921 case DBTYPE_IUNKNOWN:
923 default: return S_FALSE;
927 if(dst_class == DBTYPE_I4 || dst_class == DBTYPE_I8) return S_OK;
939 default: return S_FALSE;
942 case DBTYPE_FILETIME:
943 if(dst_class == DBTYPE_I8) return S_OK;
954 case DBTYPE_FILETIME:
956 default: return S_FALSE;
963 static HRESULT WINAPI convert_GetConversionSize(IDataConvert* iface,
964 DBTYPE wSrcType, DBTYPE wDstType,
965 DBLENGTH *pcbSrcLength, DBLENGTH *pcbDstLength,
968 convert *This = impl_from_IDataConvert(iface);
969 FIXME("(%p)->(%d, %d, %p, %p, %p): stub\n", This, wSrcType, wDstType, pcbSrcLength, pcbDstLength, pSrc);
974 static const struct IDataConvertVtbl convert_vtbl =
976 convert_QueryInterface,
981 convert_GetConversionSize
984 static HRESULT WINAPI dcinfo_QueryInterface(IDCInfo* iface, REFIID riid, void **obj)
986 convert *This = impl_from_IDCInfo(iface);
988 return IDataConvert_QueryInterface(&This->IDataConvert_iface, riid, obj);
991 static ULONG WINAPI dcinfo_AddRef(IDCInfo* iface)
993 convert *This = impl_from_IDCInfo(iface);
995 return IDataConvert_AddRef(&This->IDataConvert_iface);
998 static ULONG WINAPI dcinfo_Release(IDCInfo* iface)
1000 convert *This = impl_from_IDCInfo(iface);
1002 return IDataConvert_Release(&This->IDataConvert_iface);
1005 static HRESULT WINAPI dcinfo_GetInfo(IDCInfo *iface, ULONG num, DCINFOTYPE types[], DCINFO **info_ptr)
1007 convert *This = impl_from_IDCInfo(iface);
1011 TRACE("(%p)->(%d, %p, %p)\n", This, num, types, info_ptr);
1013 *info_ptr = infos = CoTaskMemAlloc(num * sizeof(*infos));
1014 if(!infos) return E_OUTOFMEMORY;
1016 for(i = 0; i < num; i++)
1018 infos[i].eInfoType = types[i];
1019 VariantInit(&infos[i].vData);
1023 case DCINFOTYPE_VERSION:
1024 V_VT(&infos[i].vData) = VT_UI4;
1025 V_UI4(&infos[i].vData) = This->version;
1033 static HRESULT WINAPI dcinfo_SetInfo(IDCInfo* iface, ULONG num, DCINFO info[])
1035 convert *This = impl_from_IDCInfo(iface);
1039 TRACE("(%p)->(%d, %p)\n", This, num, info);
1041 for(i = 0; i < num; i++)
1043 switch(info[i].eInfoType)
1045 case DCINFOTYPE_VERSION:
1046 if(V_VT(&info[i].vData) != VT_UI4)
1048 FIXME("VERSION with vt %x\n", V_VT(&info[i].vData));
1049 hr = DB_S_ERRORSOCCURRED;
1052 This->version = V_UI4(&info[i].vData);
1056 FIXME("Unhandled info type %d (vt %x)\n", info[i].eInfoType, V_VT(&info[i].vData));
1062 static const struct IDCInfoVtbl dcinfo_vtbl =
1064 dcinfo_QueryInterface,
1071 HRESULT create_oledb_convert(IUnknown *outer, void **obj)
1075 TRACE("(%p, %p)\n", outer, obj);
1079 if(outer) return CLASS_E_NOAGGREGATION;
1081 This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
1082 if(!This) return E_OUTOFMEMORY;
1084 This->IDataConvert_iface.lpVtbl = &convert_vtbl;
1085 This->IDCInfo_iface.lpVtbl = &dcinfo_vtbl;
1087 This->version = 0x110;
1089 *obj = &This->IDataConvert_iface;