mirror of
https://github.com/ncblakely/GiantsTools
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87 lines
2.6 KiB
C++
87 lines
2.6 KiB
C++
//--------------------------------------------------------------------------------------
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// File: PlatformHelpers.h
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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//
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// http://go.microsoft.com/fwlink/?LinkId=248929
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// http://go.microsoft.com/fwlink/?LinkID=615561
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//--------------------------------------------------------------------------------------
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#pragma once
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#pragma warning(disable : 4324)
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#include <exception>
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#include <memory>
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#ifndef MAKEFOURCC
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#define MAKEFOURCC(ch0, ch1, ch2, ch3) \
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(static_cast<uint32_t>(static_cast<uint8_t>(ch0)) \
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| (static_cast<uint32_t>(static_cast<uint8_t>(ch1)) << 8) \
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| (static_cast<uint32_t>(static_cast<uint8_t>(ch2)) << 16) \
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| (static_cast<uint32_t>(static_cast<uint8_t>(ch3)) << 24))
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#endif /* defined(MAKEFOURCC) */
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namespace DirectX
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{
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// Helper class for COM exceptions
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class com_exception : public std::exception
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{
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public:
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com_exception(HRESULT hr) noexcept : result(hr) {}
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const char* what() const override
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{
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static char s_str[64] = {};
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sprintf_s(s_str, "Failure with HRESULT of %08X", static_cast<unsigned int>(result));
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return s_str;
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}
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HRESULT get_result() const noexcept { return result; }
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private:
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HRESULT result;
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};
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// Helper utility converts D3D API failures into exceptions.
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inline void ThrowIfFailed(HRESULT hr) noexcept(false)
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{
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if (FAILED(hr))
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{
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throw com_exception(hr);
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}
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}
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// Helper for output debug tracing
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inline void DebugTrace(_In_z_ _Printf_format_string_ const char* format, ...) noexcept
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{
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#ifdef _DEBUG
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va_list args;
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va_start(args, format);
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char buff[1024] = {};
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vsprintf_s(buff, format, args);
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OutputDebugStringA(buff);
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va_end(args);
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#else
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UNREFERENCED_PARAMETER(format);
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#endif
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}
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// Helper smart-pointers
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#if (_WIN32_WINNT >= _WIN32_WINNT_WIN10) || (defined(_XBOX_ONE) && defined(_TITLE)) || !defined(WINAPI_FAMILY) || (WINAPI_FAMILY == WINAPI_FAMILY_DESKTOP_APP)
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struct virtual_deleter { void operator()(void* p) noexcept { if (p) VirtualFree(p, 0, MEM_RELEASE); } };
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#endif
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struct aligned_deleter { void operator()(void* p) noexcept { _aligned_free(p); } };
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struct handle_closer { void operator()(HANDLE h) noexcept { if (h) CloseHandle(h); } };
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using ScopedHandle = std::unique_ptr<void, handle_closer>;
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inline HANDLE safe_handle(HANDLE h) noexcept { return (h == INVALID_HANDLE_VALUE) ? nullptr : h; }
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}
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