Merge pull request #5 from WinampDesktop/community

Merge to main

1 files changed, 130 insertions, 0 deletions

diff --git a/Src/Winamp/DataStoreCOM.cpp b/Src/Winamp/DataStoreCOM.cpp
new file mode 100644
index 00000000..3581f7a5
--- /dev/null
+++ b/Src/Winamp/DataStoreCOM.cpp
@@ -0,0 +1,130 @@
+#include "DataStoreCOM.h"
+
+enum
+{
+	DISP_DATASTORE_STORE,
+	DISP_DATASTORE_RETRIEVE,
+	DISP_DATASTORE_GENERATE_GUID,
+};
+
+#define CHECK_ID(str, id)\
+	if (CSTR_EQUAL == CompareStringW(lcid, NORM_IGNORECASE, rgszNames[i], -1, L##str, -1))\
+		{ rgdispid[i] = id; continue; }
+
+HRESULT DataStoreCOM::GetIDsOfNames(REFIID riid, OLECHAR FAR* FAR* rgszNames, unsigned int cNames, LCID lcid, DISPID FAR* rgdispid)
+{
+	bool unknowns = false;
+	for (unsigned int i = 0;i != cNames;i++)
+	{
+		CHECK_ID("Store", DISP_DATASTORE_STORE);
+		CHECK_ID("Retrieve", DISP_DATASTORE_RETRIEVE);
+		CHECK_ID("GenerateGUID", DISP_DATASTORE_GENERATE_GUID);
+
+		rgdispid[i] = DISPID_UNKNOWN;
+		unknowns = true;
+
+	}
+	if (unknowns)
+		return DISP_E_UNKNOWNNAME;
+	else
+		return S_OK;
+}
+
+HRESULT DataStoreCOM::GetTypeInfo(unsigned int itinfo, LCID lcid, ITypeInfo FAR* FAR* pptinfo)
+{
+	return E_NOTIMPL;
+}
+
+HRESULT DataStoreCOM::GetTypeInfoCount(unsigned int FAR * pctinfo)
+{
+	return E_NOTIMPL;
+}
+
+HRESULT DataStoreCOM::Invoke(DISPID dispid, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS FAR *pdispparams, VARIANT FAR *pvarResult, EXCEPINFO FAR * pexecinfo, unsigned int FAR *puArgErr)
+{
+	switch (dispid)
+	{
+	case DISP_DATASTORE_GENERATE_GUID:
+		{
+			GUID guid;
+			UuidCreate(&guid);
+			wchar_t *guid_string;
+			UuidToStringW(&guid, (unsigned short **)&guid_string);
+			BSTR tag = SysAllocString(guid_string);
+			RpcStringFreeW((unsigned short **)&guid_string);
+			VariantInit(pvarResult);
+			V_VT(pvarResult) = VT_BSTR;
+			V_BSTR(pvarResult) = tag;
+			return S_OK;
+		}
+	case DISP_DATASTORE_STORE:
+		if (pdispparams->cArgs == 2)
+		{
+			GUID guid;
+			UuidFromStringW((unsigned short *)pdispparams->rgvarg[1].bstrVal, &guid);
+
+			SAFEARRAY *bufferArray=pdispparams->rgvarg[0].parray;
+			SAFEARRAY *store;
+			HRESULT hr = SafeArrayCopy(bufferArray, &store);
+			 dataStore[guid]=store;
+			 return hr;
+  
+		}
+		else
+			return DISP_E_BADPARAMCOUNT;
+	case DISP_DATASTORE_RETRIEVE:
+		if (pdispparams->cArgs == 1)
+		{
+			GUID guid;
+			UuidFromStringW((unsigned short *)pdispparams->rgvarg[0].bstrVal, &guid);
+
+			SAFEARRAY *store = dataStore[guid];
+			if (store)
+			{
+				SAFEARRAY *bufferArray;
+				SafeArrayCopy(store, &bufferArray);
+				VariantInit(pvarResult);
+				V_VT(pvarResult) = VT_ARRAY|VT_UI1;
+				V_ARRAY(pvarResult) = bufferArray;
+				return S_OK;
+			}
+			else
+				return E_FAIL;
+			
+		}
+		else
+			return DISP_E_BADPARAMCOUNT;
+	}
+	return DISP_E_MEMBERNOTFOUND;
+}
+
+STDMETHODIMP DataStoreCOM::QueryInterface(REFIID riid, PVOID *ppvObject)
+{
+	if (!ppvObject)
+		return E_POINTER;
+
+	else if (IsEqualIID(riid, IID_IDispatch))
+		*ppvObject = (IDispatch *)this;
+	else if (IsEqualIID(riid, IID_IUnknown))
+		*ppvObject = this;
+	else
+	{
+		*ppvObject = NULL;
+		return E_NOINTERFACE;
+	}
+
+	AddRef();
+	return S_OK;
+}
+
+
+ULONG DataStoreCOM::AddRef(void)
+{
+	return 0;
+}
+
+
+ULONG DataStoreCOM::Release(void)
+{
+	return 0;
+}