spicetools/hooks/input/dinput8/fake_backend.cpp

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2024-08-28 15:10:34 +00:00
#include <initguid.h>
#include "fake_backend.h"
#include <dinput.h>
#include "util/logging.h"
#include "fake_device.h"
HRESULT STDMETHODCALLTYPE FakeIDirectInput8W::QueryInterface(
REFIID riid,
void **ppvObj)
{
if (ppvObj == nullptr) {
return E_POINTER;
}
if (riid == IID_IDirectInput8A ||
riid == IID_IDirectInput8W)
{
this->AddRef();
*ppvObj = this;
return S_OK;
}
return E_NOINTERFACE;
}
ULONG STDMETHODCALLTYPE FakeIDirectInput8W::AddRef() {
return ++this->ref_count;
}
ULONG STDMETHODCALLTYPE FakeIDirectInput8W::Release() {
ULONG refs = --this->ref_count;
if (refs == 0) {
delete this;
}
return refs;
}
HRESULT STDMETHODCALLTYPE FakeIDirectInput8W::CreateDevice(
REFGUID rguid,
LPDIRECTINPUTDEVICE8W *lplpDirectInputDevice,
LPUNKNOWN pUnkOuter)
{
log_misc("input::dinput8", "IDirectInput8::CreateDevice hook hit");
if (lplpDirectInputDevice == nullptr) {
return DIERR_INVALIDPARAM;
}
if (rguid == GUID_SysKeyboard ||
rguid == GUID_SysMouse)
{
log_misc("input::dinput8", "returning stub device");
*lplpDirectInputDevice = new FakeIDirectInputDevice8W();
return DI_OK;
}
return DIERR_NOINTERFACE;
}
HRESULT STDMETHODCALLTYPE FakeIDirectInput8W::EnumDevices(
DWORD dwDevType,
LPDIENUMDEVICESCALLBACKW lpCallback,
LPVOID pvRef,
DWORD dwFlags)
{
log_misc("input::dinput8", "IDirectInput8::EnumDevices hook hit");
return DI_OK;
}
HRESULT STDMETHODCALLTYPE FakeIDirectInput8W::GetDeviceStatus(REFGUID rguidInstance) {
return DIERR_GENERIC;
}
HRESULT STDMETHODCALLTYPE FakeIDirectInput8W::RunControlPanel(HWND hwndOwner, DWORD dwFlags) {
return DIERR_GENERIC;
}
HRESULT STDMETHODCALLTYPE FakeIDirectInput8W::Initialize(HINSTANCE hinst, DWORD dwVersion) {
log_misc("input::dinput8", "IDirectInput8::Initialize({}, 0x{:x})",
fmt::ptr(hinst),
dwVersion);
return DI_OK;
}
HRESULT STDMETHODCALLTYPE FakeIDirectInput8W::FindDevice(
REFGUID rguid,
LPCWSTR pszName,
LPGUID pguidInstance)
{
return DIERR_GENERIC;
}
HRESULT STDMETHODCALLTYPE FakeIDirectInput8W::EnumDevicesBySemantics(
LPCWSTR ptszUserName,
LPDIACTIONFORMATW lpdiActionFormat,
LPDIENUMDEVICESBYSEMANTICSCBW lpCallback,
LPVOID pvRef,
DWORD dwFlags)
{
return DIERR_GENERIC;
}
HRESULT STDMETHODCALLTYPE FakeIDirectInput8W::ConfigureDevices(
LPDICONFIGUREDEVICESCALLBACK lpdiCallback,
LPDICONFIGUREDEVICESPARAMSW lpdiCDParams,
DWORD dwFlags,
LPVOID pvRefData)
{
return DIERR_GENERIC;
}