255 lines
8 KiB
C++
255 lines
8 KiB
C++
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#include <windows.h>
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#include <objbase.h>
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#include <devioctl.h>
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#include <ks.h>
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#include <ksmedia.h>
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#include "debug.h"
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#include "reg.h"
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#include "ksi.h"
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extern "C" HANDLE hHeap;
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const int StrLenGuid = 38; // "{01234567-0123-0123-0123-012345678901}"
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__inline void MyStringFromGuid(PTSTR pstr, LPCGUID Guid)
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{
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wsprintf(pstr, TEXT("{%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}"),
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Guid->Data1,
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Guid->Data2,
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Guid->Data3,
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Guid->Data4[0], Guid->Data4[1],
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Guid->Data4[2], Guid->Data4[3], Guid->Data4[4], Guid->Data4[5], Guid->Data4[6], Guid->Data4[7]);
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}
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LONG KsGetFilterStatePropertySets(IN HANDLE hKsObject, OUT GUID *ppaPropertySets[], OUT int *pcPropertySets)
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{
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KSPROPERTY Property;
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ULONG cbData;
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LONG result;
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Property.Set = KSPROPSETID_Audio;
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Property.Id = KSPROPERTY_AUDIO_FILTER_STATE;
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Property.Flags = KSPROPERTY_TYPE_GET;
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if (DeviceIoControl(hKsObject, IOCTL_KS_PROPERTY,
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&Property, sizeof(Property),
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NULL, 0,
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&cbData, NULL))
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{
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// dprintf(TEXT("KsGetFilterStatePropertySets: succeeded, cbData=%d\n"), cbData);
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result = NO_ERROR;
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} else {
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result = GetLastError();
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// dprintf(TEXT("KsGetFilterStatePropertySets: failed getting FilterState property size, LastError=%d\n"), result);
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if (ERROR_MORE_DATA == result) {
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// dprintf(TEXT("KsGetFilterStatePropertySets: note: %d bytes in FilterState\n"), cbData);
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result = NO_ERROR;
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}
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}
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if (NO_ERROR == result) {
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if (cbData > 0) {
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LPGUID paPropertySets;
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paPropertySets = (LPGUID)HeapAlloc(hHeap, 0, cbData);
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if (paPropertySets) {
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Property.Set = KSPROPSETID_Audio;
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Property.Id = KSPROPERTY_AUDIO_FILTER_STATE;
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Property.Flags = KSPROPERTY_TYPE_GET;
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if (DeviceIoControl(hKsObject, IOCTL_KS_PROPERTY,
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&Property, sizeof(Property),
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paPropertySets, cbData,
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&cbData, NULL))
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{
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*ppaPropertySets = paPropertySets;
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*pcPropertySets = cbData / sizeof(paPropertySets[0]);
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} else {
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result = GetLastError();
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// dprintf(TEXT("KsGetFilterStatePropertySets: failed getting FilterState property, LastError=%d\n"), result);
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}
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if (NO_ERROR != result) {
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HeapFree(hHeap, 0, paPropertySets);
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}
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} else {
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result = ERROR_OUTOFMEMORY;
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}
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} else {
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*ppaPropertySets = NULL;
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*pcPropertySets = 0;
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}
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}
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return result;
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}
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LONG KsSerializePropertySetToReg(IN HANDLE hKsObject, IN LPCGUID PropertySet, IN HKEY hKey)
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{
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TCHAR strGuid[StrLenGuid+1];
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KSPROPERTY Property;
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ULONG cbData;
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LONG result;
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MyStringFromGuid(strGuid, PropertySet);
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// dprintf(TEXT("KsSerializePropertySetToReg: note: serializing set %s\n"), strGuid);
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Property.Set = *PropertySet;
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Property.Id = 0;
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Property.Flags = KSPROPERTY_TYPE_SERIALIZESET;
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if (DeviceIoControl(hKsObject, IOCTL_KS_PROPERTY,
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&Property, sizeof(Property),
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NULL, 0,
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&cbData, NULL))
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{
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// dprintf(TEXT("KsSerializePropertySetToReg: succeeded, cbData=%d\n"), cbData);
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result = NO_ERROR;
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} else {
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result = GetLastError();
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// dprintf(TEXT("KsSerializePropertySetToReg: failed getting serialized size, LastError=%d\n"), result);
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if (ERROR_MORE_DATA == result) {
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// dprintf(TEXT("KsSerializePropertySetToReg: note: %d bytes to serialize\n"), cbData);
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result = NO_ERROR;
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}
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}
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if (NO_ERROR == result && cbData > 0) {
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PVOID pvData = HeapAlloc(hHeap, 0, cbData);
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if (pvData) {
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Property.Set = *PropertySet;
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Property.Id = 0;
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Property.Flags = KSPROPERTY_TYPE_SERIALIZESET;
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if (DeviceIoControl(hKsObject, IOCTL_KS_PROPERTY,
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&Property, sizeof(Property),
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pvData, cbData,
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&cbData, NULL))
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{
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result = RegSetBinaryValue(hKey, strGuid, (PBYTE)pvData, cbData);
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} else {
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result = GetLastError();
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// dprintf(TEXT("KsSerializePropertySetToReg: failed to serialize, LastError=%d\n"), result);
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}
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HeapFree(hHeap, 0, pvData);
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} else {
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result = ERROR_OUTOFMEMORY;
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}
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}
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return result;
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}
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LONG KsSerializeFilterStateToReg(IN HANDLE hKsObject, IN HKEY hKey)
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{
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LPGUID paPropertySets;
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int cPropertySets;
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LONG result;
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result = KsGetFilterStatePropertySets(hKsObject, &paPropertySets, &cPropertySets);
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if (NO_ERROR == result && cPropertySets > 0) {
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int i;
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for (i = 0; i < cPropertySets; i++) {
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KsSerializePropertySetToReg(hKsObject, &paPropertySets[i], hKey);
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}
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HeapFree(hHeap, 0, paPropertySets);
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}
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return result;
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}
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LONG KsUnserializePropertySetFromReg(IN HANDLE hKsObject, IN LPCGUID PropertySet, IN HKEY hKey)
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{
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TCHAR strGuid[StrLenGuid+1];
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KSPROPERTY Property;
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PBYTE pData;
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ULONG cbData;
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LONG result;
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MyStringFromGuid(strGuid, PropertySet);
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// dprintf(TEXT("KsUnserializePropertySetFromReg: note: serializing set %s\n"), strGuid);
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result = RegQueryBinaryValue(hKey, strGuid, (PBYTE*)&pData, &cbData);
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if (NO_ERROR == result) {
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Property.Set = *PropertySet;
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Property.Id = 0;
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Property.Flags = KSPROPERTY_TYPE_UNSERIALIZESET;
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if (DeviceIoControl(hKsObject, IOCTL_KS_PROPERTY,
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&Property, sizeof(Property),
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pData, cbData,
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&cbData, NULL))
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{
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// dprintf(TEXT("KsUnserializePropertySetFromReg: succeeded\n"));
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result = NO_ERROR;
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} else {
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result = GetLastError();
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// dprintf(TEXT("KsUnserializePropertySetFromReg: failed to unserialize, LastError=%d\n"), result);
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}
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HeapFree(hHeap, 0, pData);
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}
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return result;
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}
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LONG KsUnserializeFilterStateFromReg(IN HANDLE hKsObject, IN HKEY hKey)
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{
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LPGUID paPropertySets;
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int cPropertySets;
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LONG result;
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result = KsGetFilterStatePropertySets(hKsObject, &paPropertySets, &cPropertySets);
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if (NO_ERROR == result && cPropertySets > 0) {
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int i;
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for (i = 0; i < cPropertySets; i++) {
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KsUnserializePropertySetFromReg(hKsObject, &paPropertySets[i], hKey);
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}
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HeapFree(hHeap, 0, paPropertySets);
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}
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return result;
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}
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LONG KsSetAudioGfxXxxTargetDeviceId(IN HANDLE hGfx, IN ULONG PropertyId, IN PCTSTR DeviceId)
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{
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KSPROPERTY Property;
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ULONG cbData;
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LONG result;
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ASSERT(hGfx);
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ASSERT(!IsBadStringPtr(DeviceId, (UINT_PTR)(-1)));
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ASSERT(lstrlen(DeviceId));
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Property.Set = KSPROPSETID_AudioGfx;
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Property.Id = PropertyId;
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Property.Flags = KSPROPERTY_TYPE_SET;
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cbData = (lstrlen(DeviceId) + 1) * sizeof(DeviceId[0]);
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if (DeviceIoControl(hGfx, IOCTL_KS_PROPERTY,
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&Property, sizeof(Property),
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(LPVOID)DeviceId, cbData,
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&cbData, NULL))
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{
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result = NO_ERROR;
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} else {
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result = GetLastError();
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dprintf(TEXT("KsSetAudioGfxXxxTargetDeviceId: failed, LastError=%d\n"), result);
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}
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return result;
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}
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LONG KsSetAudioGfxRenderTargetDeviceId(IN HANDLE hGfx, IN PCTSTR DeviceId)
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{
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return KsSetAudioGfxXxxTargetDeviceId(hGfx, KSPROPERTY_AUDIOGFX_RENDERTARGETDEVICEID, DeviceId);
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}
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LONG KsSetAudioGfxCaptureTargetDeviceId(IN HANDLE hGfx, IN PCTSTR DeviceId)
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{
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return KsSetAudioGfxXxxTargetDeviceId(hGfx, KSPROPERTY_AUDIOGFX_CAPTURETARGETDEVICEID, DeviceId);
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}
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