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winamp/Src/Winamp/MediaCoreCOM.cpp

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/** (c) Nullsoft, Inc. C O N F I D E N T I A L
** Filename:
** Project:
** Description:
** Author: Ben Allison benski@nullsoft.com
** Created:
**/
#include "main.h"
#include "MediaCoreCOM.h"
#include "jsapi.h"
enum
{
DISP_MEDIACORE_ISREGISTEREDEXTENSION = 777,
DISP_MEDIACORE_GETMETADATA,
DISP_MEDIACORE_REGISTER_CALLBACK,
DISP_MEDIACORE_UNREGISTER_CALLBACK,
DISP_MEDIACORE_PLAY,
DISP_MEDIACORE_ENQUEUE,
DISP_MEDIACORE_PAUSE,
DISP_MEDIACORE_RESUME,
DISP_MEDIACORE_VOLUME,
};
#define CHECK_ID(str, id)\
if (CSTR_EQUAL == CompareStringW(lcid, NORM_IGNORECASE, rgszNames[i], -1, L##str, -1))\
{ rgdispid[i] = id; continue; }
HRESULT MediaCoreCOM::GetIDsOfNames(REFIID riid, OLECHAR FAR* FAR* rgszNames, unsigned int cNames, LCID lcid, DISPID FAR* rgdispid)
{
UNREFERENCED_PARAMETER(riid);
bool unknowns = false;
for (unsigned int i = 0;i != cNames;i++)
{
CHECK_ID("IsRegisteredExtension", DISP_MEDIACORE_ISREGISTEREDEXTENSION)
CHECK_ID("GetMetadata", DISP_MEDIACORE_GETMETADATA)
CHECK_ID("RegisterCallback", DISP_MEDIACORE_REGISTER_CALLBACK)
CHECK_ID("UnregisterCallback", DISP_MEDIACORE_UNREGISTER_CALLBACK)
CHECK_ID("Play", DISP_MEDIACORE_PLAY)
CHECK_ID("Enqueue", DISP_MEDIACORE_ENQUEUE)
CHECK_ID("Pause", DISP_MEDIACORE_PAUSE)
CHECK_ID("Resume", DISP_MEDIACORE_RESUME)
CHECK_ID("volume", DISP_MEDIACORE_VOLUME)
rgdispid[i] = DISPID_UNKNOWN;
unknowns = true;
}
if (unknowns)
return DISP_E_UNKNOWNNAME;
else
return S_OK;
}
HRESULT MediaCoreCOM::GetTypeInfo(unsigned int itinfo, LCID lcid, ITypeInfo FAR* FAR* pptinfo)
{
UNREFERENCED_PARAMETER(itinfo);
UNREFERENCED_PARAMETER(lcid);
UNREFERENCED_PARAMETER(pptinfo);
return E_NOTIMPL;
}
HRESULT MediaCoreCOM::GetTypeInfoCount(unsigned int FAR * pctinfo)
{
UNREFERENCED_PARAMETER(pctinfo);
return E_NOTIMPL;
}
HRESULT MediaCoreCOM::Invoke(DISPID dispid, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS FAR *pdispparams, VARIANT FAR *pvarResult, EXCEPINFO FAR * pexecinfo, unsigned int FAR *puArgErr)
{
UNREFERENCED_PARAMETER(riid);
UNREFERENCED_PARAMETER(lcid);
UNREFERENCED_PARAMETER(pexecinfo);
switch (dispid)
{
case DISP_MEDIACORE_PLAY:
{
if (pdispparams->cArgs < 1 || pdispparams->cArgs > 3)
return DISP_E_BADPARAMCOUNT;
/* we're probably not on the main thread, so we'll have to get onto the main thread */
// TODO: APC this instead of SendMessageW
enqueueFileWithMetaStructW s = {0,0,0,0};
SendMessageW(hMainWindow, WM_WA_IPC, 0, IPC_DELETE);
switch(pdispparams->cArgs)
{
case 1:
s.filename = pdispparams->rgvarg[0].bstrVal;
break;
case 2:
s.filename = pdispparams->rgvarg[1].bstrVal;
s.title = pdispparams->rgvarg[0].bstrVal;
break;
case 3:
s.filename = pdispparams->rgvarg[2].bstrVal;
s.title = pdispparams->rgvarg[1].bstrVal;
s.length = pdispparams->rgvarg[0].lVal;
break;
}
s.ext = NULL;
SendMessageW(hMainWindow, WM_WA_IPC, (WPARAM)&s, IPC_PLAYFILEW);
SendMessageW(hMainWindow, WM_WA_IPC, 0, IPC_STARTPLAY);
return S_OK;
}
case DISP_MEDIACORE_ENQUEUE:
{
if (pdispparams->cArgs < 1 || pdispparams->cArgs > 3)
return DISP_E_BADPARAMCOUNT;
/* we're probably not on the main thread, so we'll have to get onto the main thread */
// TODO: APC this instead of SendMessageW
enqueueFileWithMetaStructW s = {0,0,0,0};
switch(pdispparams->cArgs)
{
case 1:
s.filename = pdispparams->rgvarg[0].bstrVal;
break;
case 2:
s.filename = pdispparams->rgvarg[1].bstrVal;
s.title = pdispparams->rgvarg[0].bstrVal;
break;
case 3:
s.filename = pdispparams->rgvarg[2].bstrVal;
s.title = pdispparams->rgvarg[1].bstrVal;
s.length = pdispparams->rgvarg[0].lVal;
break;
}
s.ext = NULL;
SendMessageW( hMainWindow, WM_WA_IPC, (WPARAM)&s, IPC_ENQUEUEFILEW );
return S_OK;
}
case DISP_MEDIACORE_ISREGISTEREDEXTENSION:
{
bool isReg = false;
if (pdispparams->cArgs == 1)
{
const wchar_t *filename = pdispparams->rgvarg[0].bstrVal;
int start_offs=0;
In_Module *i = in_setmod_noplay(filename, &start_offs);
if (i)
isReg = true;
}
VariantInit(pvarResult);
V_VT(pvarResult) = VT_BOOL;
V_BOOL(pvarResult) = (false != isReg) ? VARIANT_TRUE : VARIANT_FALSE;
return S_OK;
}
break;
case DISP_MEDIACORE_GETMETADATA:
JSAPI_VERIFY_METHOD(wFlags);
JSAPI_VERIFY_PARAMCOUNT(pdispparams, 2);
JSAPI_VERIFY_PARAMTYPE(pdispparams, 1, VT_BSTR, puArgErr);
JSAPI_VERIFY_PARAMTYPE(pdispparams, 2, VT_BSTR, puArgErr);
JSAPI_INIT_RESULT(pvarResult, VT_BSTR);
{
wchar_t buffer[4096] = {0};
extendedFileInfoStructW info = {0};
info.filename = JSAPI_PARAM(pdispparams, 1).bstrVal;
info.metadata = JSAPI_PARAM(pdispparams, 2).bstrVal;
info.ret = buffer;
info.retlen = sizeof(buffer)/sizeof(*buffer);
if (NULL != info.filename &&
NULL != info.metadata)
{
if (0 == SendMessageW(hMainWindow, WM_WA_IPC, (WPARAM)&info, IPC_GET_EXTENDED_FILE_INFOW_HOOKABLE))
info.ret = NULL;
JSAPI_SET_RESULT(pvarResult, bstrVal, SysAllocString(info.ret));
}
else
JSAPI_EMPTY_RESULT(pvarResult);
}
return S_OK;
case DISP_MEDIACORE_REGISTER_CALLBACK:
return coreCallbacks.RegisterFromDispParam(pdispparams, 0, puArgErr);
case DISP_MEDIACORE_UNREGISTER_CALLBACK:
return coreCallbacks.UnregisterFromDispParam(pdispparams, 0, puArgErr);
case DISP_MEDIACORE_PAUSE:
PausePlaying();
return S_OK;
case DISP_MEDIACORE_RESUME:
UnPausePlaying();
return S_OK;
case DISP_MEDIACORE_VOLUME:
{
if (wFlags & DISPATCH_PROPERTYPUT)
{
JSAPI_VERIFY_PARAMCOUNT(pdispparams, 1);
JSAPI_VERIFY_PARAMTYPE(pdispparams, 1, VT_I4, puArgErr);
SendMessageW(hMainWindow, WM_WA_IPC, JSAPI_PARAM(pdispparams, 1).lVal, IPC_SETVOLUME);
return S_OK;
}
else if (wFlags & DISPATCH_PROPERTYGET)
{
JSAPI_VERIFY_PARAMCOUNT(pdispparams, 0);
VariantInit(pvarResult);
V_VT(pvarResult) = VT_I4;
V_I4(pvarResult) = SendMessageW(hMainWindow, WM_WA_IPC, (WPARAM)-666, IPC_SETVOLUME);
return S_OK;
}
}
break;
}
return DISP_E_MEMBERNOTFOUND;
}
STDMETHODIMP MediaCoreCOM::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 MediaCoreCOM::AddRef(void)
{
return 0;
}
ULONG MediaCoreCOM::Release(void)
{
return 0;
}
void CallDispatchMethod(IDispatch *dispatch, DISPPARAMS &params, OLECHAR *name)
{
unsigned int ret;
DISPID dispid;
if (NULL == dispatch)
return;
if (!(config_no_visseh&8))
{
__try
{
if (SUCCEEDED(dispatch->GetIDsOfNames(IID_NULL, &name, 1, LOCALE_SYSTEM_DEFAULT, &dispid)))
dispatch->Invoke(dispid, GUID_NULL, 0, DISPATCH_METHOD, &params, 0, 0, &ret);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
}
}
else
{
if (SUCCEEDED(dispatch->GetIDsOfNames(IID_NULL, &name, 1, LOCALE_SYSTEM_DEFAULT, &dispid)))
dispatch->Invoke(dispid, GUID_NULL, 0, DISPATCH_METHOD, &params, 0, 0, &ret);
}
}
static void Play_NotifyCb(IDispatch *dispatch, void *param)
{
UNREFERENCED_PARAMETER(param);
DISPPARAMS params;
if (NULL == dispatch)
return;
params.cArgs = 0;
params.cNamedArgs = 0;
params.rgdispidNamedArgs = 0;
params.rgvarg = 0;
CallDispatchMethod(dispatch, params, L"OnPlay");
}
struct StopNotifyParam
{
DISPPARAMS params;
VARIANT arguments[2];
StopNotifyParam(int last_time, int fullstop)
{
VariantInit(&arguments[0]);
V_VT(&arguments[0]) = VT_BOOL;
V_BOOL(&arguments[0]) = (0 != fullstop) ? VARIANT_TRUE : VARIANT_FALSE;
VariantInit(&arguments[1]);
V_VT(&arguments[1]) = VT_I4;
V_I4(&arguments[1]) = last_time;
params.cArgs = ARRAYSIZE(arguments);
params.cNamedArgs = 0;
params.rgdispidNamedArgs = NULL;
params.rgvarg = arguments;
}
};
static void Stop_NotifyCb(IDispatch *dispatch, void *param)
{
StopNotifyParam *stopParams = (StopNotifyParam*)param;
if (NULL == dispatch ||
NULL == stopParams)
{
return;
}
CallDispatchMethod(dispatch, stopParams->params, L"OnStop");
}
static void Stop_FreeCb(void *param)
{
StopNotifyParam *stopParam;
stopParam = (StopNotifyParam*)param;
if (NULL != stopParam)
delete(stopParam);
}
static void Pause_NotifyCb(IDispatch *dispatch, void *param)
{
UNREFERENCED_PARAMETER(param);
DISPPARAMS params;
if (NULL == dispatch)
return;
params.cArgs = 0;
params.cNamedArgs = 0;
params.rgdispidNamedArgs = 0;
params.rgvarg = 0;
CallDispatchMethod(dispatch, params, L"OnPause");
}
static void Resume_NotifyCb(IDispatch *dispatch, void *param)
{
UNREFERENCED_PARAMETER(param);
DISPPARAMS params;
if (NULL == dispatch)
return;
params.cArgs = 0;
params.cNamedArgs = 0;
params.rgdispidNamedArgs = 0;
params.rgvarg = 0;
CallDispatchMethod(dispatch, params, L"OnResume");
}
void MediaCoreCOM::OnPlay()
{
coreCallbacks.Notify(Play_NotifyCb, NULL, NULL);
}
void MediaCoreCOM::OnStop(int last_time, int fullstop)
{
StopNotifyParam *param;
param = new StopNotifyParam(last_time, fullstop);
if (NULL == param)
return;
coreCallbacks.Notify(Stop_NotifyCb, Stop_FreeCb, param);
}
void MediaCoreCOM::OnPause()
{
coreCallbacks.Notify(Pause_NotifyCb, NULL, NULL);
}
void MediaCoreCOM::OnResume()
{
coreCallbacks.Notify(Resume_NotifyCb, NULL, NULL);
}
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