[16/17] windowscodecs: Add initial implementation of IWICMetadataQueryReader::GetMetadataByName.
Dmitry Timoshkov
dmitry at baikal.ru
Mon Jun 19 23:37:47 CDT 2017
Signed-off-by: Dmitry Timoshkov <dmitry at baikal.ru>
---
dlls/windowscodecs/metadataquery.c | 490 ++++++++++++++++++++++++++++++++++++-
include/propidl.idl | 2 +
2 files changed, 488 insertions(+), 4 deletions(-)
diff --git a/dlls/windowscodecs/metadataquery.c b/dlls/windowscodecs/metadataquery.c
index 1f3a15b34f..c53834d167 100644
--- a/dlls/windowscodecs/metadataquery.c
+++ b/dlls/windowscodecs/metadataquery.c
@@ -22,10 +22,12 @@
#include <stdarg.h>
#define COBJMACROS
+#define NONAMELESSUNION
#include "windef.h"
#include "winbase.h"
#include "objbase.h"
+#include "propvarutil.h"
#include "wincodecs_private.h"
@@ -33,6 +35,8 @@
WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
+static const WCHAR *map_shortname_to_schema(const GUID *format, const WCHAR *name);
+
typedef struct {
IWICMetadataQueryReader IWICMetadataQueryReader_iface;
LONG ref;
@@ -125,12 +129,470 @@ static HRESULT WINAPI mqr_GetLocation(IWICMetadataQueryReader *iface, UINT len,
return S_OK;
}
-static HRESULT WINAPI mqr_GetMetadataByName(IWICMetadataQueryReader *iface,
- LPCWSTR wzName, PROPVARIANT *pvarValue)
+struct string_t
+{
+ const WCHAR *str;
+ int len;
+};
+
+static const struct
+{
+ int len;
+ WCHAR str[10];
+ VARTYPE vt;
+} str2vt[] =
+{
+ { 4, {'c','h','a','r'}, VT_I1 },
+ { 5, {'u','c','h','a','r'}, VT_UI1 },
+ { 5, {'s','h','o','r','t'}, VT_I2 },
+ { 6, {'u','s','h','o','r','t'}, VT_UI2 },
+ { 4, {'l','o','n','g'}, VT_I4 },
+ { 5, {'u','l','o','n','g'}, VT_UI4 },
+ { 3, {'i','n','t'}, VT_I4 },
+ { 4, {'u','i','n','t'}, VT_UI4 },
+ { 8, {'l','o','n','g','l','o','n','g'}, VT_I8 },
+ { 9, {'u','l','o','n','g','l','o','n','g'}, VT_UI8 },
+ { 5, {'f','l','o','a','t'}, VT_R4 },
+ { 6, {'d','o','u','b','l','e'}, VT_R8 },
+ { 3, {'s','t','r'}, VT_LPSTR },
+ { 4, {'w','s','t','r'}, VT_LPWSTR },
+ { 4, {'g','u','i','d'}, VT_CLSID },
+ { 4, {'b','o','o','l'}, VT_BOOL }
+};
+
+static VARTYPE map_type(struct string_t *str)
+{
+ UINT i;
+
+ for (i = 0; i < sizeof(str2vt)/sizeof(str2vt[0]); i++)
+ {
+ if (str2vt[i].len == str->len)
+ {
+ if (CompareStringW(LOCALE_SYSTEM_DEFAULT, NORM_IGNORECASE,
+ str->str, str->len, str2vt[i].str, str2vt[i].len) == CSTR_EQUAL)
+ return str2vt[i].vt;
+ }
+ }
+
+ WARN("type %s is not recognized\n", wine_dbgstr_wn(str->str, str->len));
+
+ return VT_ILLEGAL;
+}
+
+static HRESULT get_token(struct string_t *elem, PROPVARIANT *id, PROPVARIANT *schema, int *idx)
+{
+ const WCHAR *start, *end, *p;
+ WCHAR *bstr;
+ struct string_t next_elem;
+ HRESULT hr;
+
+ TRACE("%s, len %d\n", wine_dbgstr_wn(elem->str, elem->len), elem->len);
+
+ PropVariantInit(id);
+ PropVariantInit(schema);
+
+ if (!elem->len) return S_OK;
+
+ start = elem->str;
+
+ if (*start == '[')
+ {
+ WCHAR *idx_end;
+
+ if (start[1] < '0' || start[1] > '9') return DISP_E_TYPEMISMATCH;
+
+ *idx = strtolW(start + 1, &idx_end, 10);
+ if (idx_end > elem->str + elem->len) return WINCODEC_ERR_INVALIDQUERYREQUEST;
+ if (*idx_end != ']') return WINCODEC_ERR_INVALIDQUERYREQUEST;
+ if (*idx < 0) return WINCODEC_ERR_INVALIDQUERYREQUEST;
+ end = idx_end + 1;
+
+ next_elem.str = end;
+ next_elem.len = elem->len - (end - start);
+ hr = get_token(&next_elem, id, schema, idx);
+ if (hr != S_OK)
+ {
+ TRACE("parse_elem error %#x\n", hr);
+ return hr;
+ }
+ elem->len = (end - start) + next_elem.len;
+
+ TRACE("indexed %s [%d]\n", wine_dbgstr_wn(elem->str, elem->len), *idx);
+ return S_OK;
+ }
+ else if (*start == '{')
+ {
+ VARTYPE vt;
+ PROPVARIANT next_token;
+
+ end = memchrW(start + 1, '=', elem->len - 1);
+ if (!end) return WINCODEC_ERR_INVALIDQUERYREQUEST;
+ if (end > elem->str + elem->len) return WINCODEC_ERR_INVALIDQUERYREQUEST;
+
+ next_elem.str = start + 1;
+ next_elem.len = end - start - 1;
+ vt = map_type(&next_elem);
+ TRACE("type %s => %d\n", wine_dbgstr_wn(next_elem.str, next_elem.len), vt);
+ if (vt == VT_ILLEGAL) return WINCODEC_ERR_WRONGSTATE;
+
+ next_token.vt = VT_BSTR;
+ next_token.u.bstrVal = SysAllocStringLen(NULL, elem->len - (end - start) + 1);
+ if (!next_token.u.bstrVal) return E_OUTOFMEMORY;
+
+ bstr = next_token.u.bstrVal;
+
+ end++;
+ p = end;
+ while (*end && *end != '}' && end - start < elem->len)
+ {
+ if (*end == '\\') end++;
+ *bstr++ = *end++;
+ }
+ if (!*end || *end != '}')
+ {
+ PropVariantClear(&next_token);
+ return WINCODEC_ERR_INVALIDQUERYREQUEST;
+ }
+ *bstr = 0;
+ TRACE("schema/id %s\n", wine_dbgstr_w(next_token.u.bstrVal));
+
+ if (vt == VT_CLSID)
+ {
+ id->u.puuid = CoTaskMemAlloc(sizeof(GUID));
+ if (!id->u.puuid) return E_OUTOFMEMORY;
+
+ hr = UuidFromStringW(next_token.u.bstrVal, id->u.puuid);
+ }
+ else
+ hr = PropVariantChangeType(id, &next_token, 0, vt);
+ PropVariantClear(&next_token);
+ if (hr != S_OK)
+ {
+ PropVariantClear(id);
+ PropVariantClear(schema);
+ return hr;
+ }
+
+ id->vt = vt;
+
+ end++;
+ if (*end == ':')
+ {
+ PROPVARIANT next_id, next_schema;
+ int next_idx = 0;
+
+ next_elem.str = end + 1;
+ next_elem.len = elem->len - (end - start + 1);
+ hr = get_token(&next_elem, &next_id, &next_schema, &next_idx);
+ if (hr != S_OK)
+ {
+ TRACE("get_token error %#x\n", hr);
+ return hr;
+ }
+ elem->len = (end - start + 1) + next_elem.len;
+
+ TRACE("id %s [%d]\n", wine_dbgstr_wn(elem->str, elem->len), *idx);
+
+ if (next_schema.vt != VT_EMPTY)
+ {
+ PropVariantClear(&next_id);
+ PropVariantClear(&next_schema);
+ return WINCODEC_ERR_WRONGSTATE;
+ }
+
+ *schema = *id;
+ *id = next_id;
+
+ return S_OK;
+ }
+
+ elem->len = end - start;
+ return S_OK;
+ }
+
+ end = memchrW(start, '/', elem->len);
+ if (!end) end = start + elem->len;
+
+ p = memchrW(start, ':', end - start);
+ if (p)
+ {
+ next_elem.str = p + 1;
+ next_elem.len = end - p - 1;
+
+ elem->len = p - start;
+ }
+ else
+ elem->len = end - start;
+
+ id->vt = VT_BSTR;
+ id->u.bstrVal = SysAllocStringLen(NULL, elem->len + 1);
+ if (!id->u.bstrVal) return E_OUTOFMEMORY;
+
+ bstr = id->u.bstrVal;
+ p = elem->str;
+ while (p - elem->str < elem->len)
+ {
+ if (*p == '\\') p++;
+ *bstr++ = *p++;
+ }
+ *bstr = 0;
+ TRACE("%s [%d]\n", wine_dbgstr_variant((VARIANT *)id), *idx);
+
+ if (*p == ':')
+ {
+ PROPVARIANT next_id, next_schema;
+ int next_idx = 0;
+
+ hr = get_token(&next_elem, &next_id, &next_schema, &next_idx);
+ if (hr != S_OK)
+ {
+ TRACE("get_token error %#x\n", hr);
+ PropVariantClear(id);
+ PropVariantClear(schema);
+ return hr;
+ }
+ elem->len += next_elem.len + 1;
+
+ TRACE("id %s [%d]\n", wine_dbgstr_wn(elem->str, elem->len), *idx);
+
+ if (next_schema.vt != VT_EMPTY)
+ {
+ PropVariantClear(&next_id);
+ PropVariantClear(&next_schema);
+ PropVariantClear(id);
+ PropVariantClear(schema);
+ return WINCODEC_ERR_WRONGSTATE;
+ }
+
+ *schema = *id;
+ *id = next_id;
+ }
+
+ return S_OK;
+}
+
+static HRESULT find_reader_from_block(IWICMetadataBlockReader *block_reader, UINT index,
+ GUID *guid, IWICMetadataReader **reader)
+{
+ HRESULT hr;
+ GUID format;
+ IWICMetadataReader *new_reader;
+ UINT count, i, matched_index;
+
+ *reader = NULL;
+
+ hr = IWICMetadataBlockReader_GetCount(block_reader, &count);
+ if (hr != S_OK) return hr;
+
+ matched_index = 0;
+
+ for (i = 0; i < count; i++)
+ {
+ hr = IWICMetadataBlockReader_GetReaderByIndex(block_reader, i, &new_reader);
+ if (hr != S_OK) return hr;
+
+ hr = IWICMetadataReader_GetMetadataFormat(new_reader, &format);
+ if (hr == S_OK)
+ {
+ if (IsEqualGUID(&format, guid))
+ {
+ if (matched_index == index)
+ {
+ *reader = new_reader;
+ return S_OK;
+ }
+
+ matched_index++;
+ }
+ }
+
+ IWICMetadataReader_Release(new_reader);
+ if (hr != S_OK) return hr;
+ }
+
+ return WINCODEC_ERR_PROPERTYNOTFOUND;
+}
+
+static HRESULT get_next_reader(IWICMetadataReader *reader, UINT index,
+ GUID *guid, IWICMetadataReader **new_reader)
+{
+ HRESULT hr;
+ PROPVARIANT schema, id, value;
+
+ *new_reader = NULL;
+
+ PropVariantInit(&schema);
+ PropVariantInit(&id);
+ PropVariantInit(&value);
+
+ if (index)
+ {
+ schema.vt = VT_UI2;
+ schema.u.uiVal = index;
+ }
+
+ id.vt = VT_CLSID;
+ id.u.puuid = guid;
+ hr = IWICMetadataReader_GetValue(reader, &schema, &id, &value);
+ if (hr != S_OK) return hr;
+
+ if (value.vt == VT_UNKNOWN)
+ hr = IUnknown_QueryInterface(value.u.punkVal, &IID_IWICMetadataReader, (void **)new_reader);
+ else
+ hr = WINCODEC_ERR_UNEXPECTEDMETADATATYPE;
+
+ PropVariantClear(&value);
+ return hr;
+}
+
+static HRESULT WINAPI mqr_GetMetadataByName(IWICMetadataQueryReader *iface, LPCWSTR query, PROPVARIANT *value)
{
QueryReader *This = impl_from_IWICMetadataQueryReader(iface);
- FIXME("(%p,%s,%p)\n", This, wine_dbgstr_w(wzName), pvarValue);
- return E_NOTIMPL;
+ struct string_t elem;
+ WCHAR *full_query;
+ const WCHAR *p;
+ int index, len;
+ PROPVARIANT tk_id, tk_schema, new_value;
+ GUID guid;
+ IWICMetadataReader *reader;
+ HRESULT hr = S_OK;
+
+ TRACE("(%p,%s,%p)\n", This, wine_dbgstr_w(query), value);
+
+ len = lstrlenW(query) + 1;
+ if (This->root) len += lstrlenW(This->root);
+ full_query = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
+ full_query[0] = 0;
+ if (This->root)
+ lstrcpyW(full_query, This->root);
+ lstrcatW(full_query, query);
+
+ PropVariantInit(&tk_id);
+ PropVariantInit(&tk_schema);
+ PropVariantInit(&new_value);
+
+ reader = NULL;
+ p = full_query;
+
+ while (*p)
+ {
+ if (*p != '/')
+ {
+ WARN("query should start with '/'\n");
+ hr = WINCODEC_ERR_PROPERTYNOTSUPPORTED;
+ break;
+ }
+
+ p++;
+
+ index = 0;
+ elem.str = p;
+ elem.len = lstrlenW(p);
+ hr = get_token(&elem, &tk_id, &tk_schema, &index);
+ if (hr != S_OK)
+ {
+ WARN("get_token error %#x\n", hr);
+ break;
+ }
+ TRACE("parsed %d characters: %s, index %d\n", elem.len, wine_dbgstr_wn(elem.str, elem.len), index);
+ TRACE("id %s, schema %s\n", wine_dbgstr_variant((VARIANT *)&tk_id), wine_dbgstr_variant((VARIANT *)&tk_schema));
+
+ if (!elem.len) break;
+
+ if (tk_id.vt == VT_CLSID || (tk_id.vt == VT_BSTR && WICMapShortNameToGuid(tk_id.u.bstrVal, &guid) == S_OK))
+ {
+ WCHAR *root;
+
+ if (tk_schema.vt != VT_EMPTY)
+ {
+ FIXME("unsupported schema vt %u\n", tk_schema.vt);
+ PropVariantClear(&tk_schema);
+ }
+
+ if (tk_id.vt == VT_CLSID) guid = *tk_id.u.puuid;
+
+ if (reader)
+ {
+ IWICMetadataReader *new_reader;
+
+ hr = get_next_reader(reader, index, &guid, &new_reader);
+ IWICMetadataReader_Release(reader);
+ reader = new_reader;
+ }
+ else
+ hr = find_reader_from_block(This->block, index, &guid, &reader);
+
+ if (hr != S_OK) break;
+
+ root = SysAllocStringLen(NULL, elem.str + elem.len - full_query + 2);
+ if (!root)
+ {
+ hr = E_OUTOFMEMORY;
+ break;
+ }
+ lstrcpynW(root, full_query, p - full_query + elem.len + 1);
+
+ new_value.vt = VT_UNKNOWN;
+ hr = MetadataQueryReader_CreateInstance(This->block, root, (IWICMetadataQueryReader **)&new_value.u.punkVal);
+ SysFreeString(root);
+ if (hr != S_OK) break;
+ }
+ else
+ {
+ PROPVARIANT schema, id;
+
+ if (!reader)
+ {
+ hr = WINCODEC_ERR_INVALIDQUERYREQUEST;
+ break;
+ }
+
+ if (tk_schema.vt == VT_BSTR)
+ {
+ hr = IWICMetadataReader_GetMetadataFormat(reader, &guid);
+ if (hr != S_OK) break;
+
+ schema.vt = VT_LPWSTR;
+ schema.u.pwszVal = (LPWSTR)map_shortname_to_schema(&guid, tk_schema.u.bstrVal);
+ if (!schema.u.pwszVal)
+ schema.u.pwszVal = tk_schema.u.bstrVal;
+ }
+ else
+ schema = tk_schema;
+
+ if (tk_id.vt == VT_BSTR)
+ {
+ id.vt = VT_LPWSTR;
+ id.u.pwszVal = tk_id.u.bstrVal;
+ }
+ else
+ id = tk_id;
+
+ PropVariantClear(&new_value);
+ hr = IWICMetadataReader_GetValue(reader, &schema, &id, &new_value);
+ if (hr != S_OK) break;
+ }
+
+ p += elem.len;
+
+ PropVariantClear(&tk_id);
+ PropVariantClear(&tk_schema);
+ }
+
+ if (reader)
+ IWICMetadataReader_Release(reader);
+
+ PropVariantClear(&tk_id);
+ PropVariantClear(&tk_schema);
+
+ if (hr == S_OK)
+ *value = new_value;
+ else
+ PropVariantClear(&new_value);
+
+ HeapFree(GetProcessHeap(), 0, full_query);
+
+ return hr;
}
static HRESULT WINAPI mqr_GetEnumerator(IWICMetadataQueryReader *iface,
@@ -407,6 +869,26 @@ static const struct
{ MPReg, MPReg_scheme }
};
+static const WCHAR *map_shortname_to_schema(const GUID *format, const WCHAR *name)
+{
+ UINT i;
+
+ /* It appears that the only metadata formats
+ * that support schemas are xmp and xmpstruct.
++ */
+ if (!IsEqualGUID(format, &GUID_MetadataFormatXMP) &&
+ !IsEqualGUID(format, &GUID_MetadataFormatXMPStruct))
+ return NULL;
+
+ for (i = 0; i < sizeof(name2schema)/sizeof(name2schema[0]); i++)
+ {
+ if (!lstrcmpW(name2schema[i].name, name))
+ return name2schema[i].schema;
+ }
+
+ return NULL;
+}
+
HRESULT WINAPI WICMapSchemaToName(REFGUID format, LPWSTR schema, UINT len, WCHAR *name, UINT *ret_len)
{
UINT i;
diff --git a/include/propidl.idl b/include/propidl.idl
index fbe80d8174..71401cb454 100644
--- a/include/propidl.idl
+++ b/include/propidl.idl
@@ -141,6 +141,8 @@ interface IPropertyStorage : IUnknown
[case(VT_BSTR_BLOB)] BSTRBLOB bstrblobVal;
[case(VT_LPSTR)] LPSTR pszVal;
[case(VT_LPWSTR)] LPWSTR pwszVal;
+ [case(VT_UNKNOWN)] IUnknown *punkVal;
+ [case(VT_DISPATCH)] IDispatch *pdispVal;
[case(VT_UI1|VT_VECTOR)] CAUB caub;
[case(VT_I2|VT_VECTOR)] CAI cai;
[case(VT_UI2|VT_VECTOR)] CAUI caui;
--
2.13.1
More information about the wine-patches
mailing list