2023-10-20 04:36:34 +00:00
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/**
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* Looking Glass
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* Copyright © 2017-2023 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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2023-04-10 04:02:47 +00:00
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#include <Windows.h>
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#include <malloc.h>
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#include <strsafe.h>
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/* credit: https://stackoverflow.com/questions/29049686/is-there-a-better-way-to-pass-formatted-output-to-outputdebugstring */
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VOID _DBGPRINT(PCSTR kwszFunction, INT iLineNumber, LPCSTR kszDebugFormatString, ...) \
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{
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INT cbFormatString = 0;
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va_list args;
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PCHAR szDebugString = NULL;
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size_t st_Offset = 0;
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va_start(args, kszDebugFormatString);
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cbFormatString = _scprintf("[%s:%d] ", kwszFunction, iLineNumber) * sizeof(CHAR);
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cbFormatString += _vscprintf(kszDebugFormatString, args) * sizeof(CHAR) + 2;
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/* Depending on the size of the format string, allocate space on the stack or the heap. */
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szDebugString = (PCHAR)_malloca(cbFormatString);
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if (!szDebugString)
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return;
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/* Populate the buffer with the contents of the format string. */
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StringCbPrintfA(szDebugString, cbFormatString, "[%s:%d] ", kwszFunction, iLineNumber);
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StringCbLengthA(szDebugString, cbFormatString, &st_Offset);
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StringCbVPrintfA(&szDebugString[st_Offset / sizeof(CHAR)], cbFormatString - st_Offset, kszDebugFormatString, args);
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OutputDebugStringA(szDebugString);
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_freea(szDebugString);
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va_end(args);
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}
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