mpd/src/win32/HResult.cxx

75 lines
1.9 KiB
C++

// SPDX-License-Identifier: GPL-2.0-or-later
// Copyright The Music Player Daemon Project
#ifdef _WIN32
// COM needs the "MSG" typedef, and audiopolicy.h includes COM headers
#undef NOUSER
#endif
#include "HResult.hxx"
#include <fmt/core.h>
#include <cassert>
#include <combaseapi.h> // needed by audiopolicy.h if COM_NO_WINDOWS_H is defined
#include <audiopolicy.h>
std::string_view
HRESULTToString(HRESULT result) noexcept
{
using namespace std::literals;
switch (result) {
#define C(x) \
case x: \
return #x##sv
C(AUDCLNT_E_ALREADY_INITIALIZED);
C(AUDCLNT_E_BUFDURATION_PERIOD_NOT_EQUAL);
C(AUDCLNT_E_BUFFER_ERROR);
C(AUDCLNT_E_BUFFER_OPERATION_PENDING);
C(AUDCLNT_E_BUFFER_SIZE_ERROR);
C(AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED);
C(AUDCLNT_E_BUFFER_TOO_LARGE);
C(AUDCLNT_E_CPUUSAGE_EXCEEDED);
C(AUDCLNT_E_DEVICE_INVALIDATED);
C(AUDCLNT_E_DEVICE_IN_USE);
C(AUDCLNT_E_ENDPOINT_CREATE_FAILED);
C(AUDCLNT_E_EXCLUSIVE_MODE_NOT_ALLOWED);
C(AUDCLNT_E_INVALID_DEVICE_PERIOD);
C(AUDCLNT_E_OUT_OF_ORDER);
C(AUDCLNT_E_SERVICE_NOT_RUNNING);
C(AUDCLNT_E_UNSUPPORTED_FORMAT);
C(AUDCLNT_E_WRONG_ENDPOINT_TYPE);
C(AUDCLNT_E_NOT_INITIALIZED);
C(AUDCLNT_E_NOT_STOPPED);
C(CO_E_NOTINITIALIZED);
C(E_INVALIDARG);
C(E_OUTOFMEMORY);
C(E_POINTER);
C(NO_ERROR);
#undef C
}
return std::string_view();
}
std::string
HResultCategory::message(int Errcode) const
{
char buffer[256];
/* FormatMessage() supports some HRESULT values (depending on
the Windows version) */
if (FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
nullptr, Errcode, 0,
buffer, sizeof(buffer),
nullptr))
return buffer;
const auto msg = HRESULTToString(Errcode);
if (!msg.empty())
return std::string(msg);
return fmt::format("{:#x}", Errcode);
}