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windowscodecs: Add initial implementation of IWICMetadataQueryReader::GetMetadataByName. 

Signed-off-by: Dmitry Timoshkov <dmitry@baikal.ru>
Signed-off-by: Vincent Povirk <vincent@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
oldstable
Dmitry Timoshkov 2017-06-25 13:24:23 +08:00 committed by Alexandre Julliard
parent 73af2479c7
commit 2271ba8713
2 changed files with 488 additions and 4 deletions
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490
dlls/windowscodecs/metadataquery.c
View File

@ -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->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;
}
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);
PropVariantClear(&new_value);
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;

2
include/propidl.idl
View File

@ -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;