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Diffstat (limited to 'portaudio/src/os/win/pa_win_util.c')
-rw-r--r-- | portaudio/src/os/win/pa_win_util.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/portaudio/src/os/win/pa_win_util.c b/portaudio/src/os/win/pa_win_util.c deleted file mode 100644 index b86f7af..0000000 --- a/portaudio/src/os/win/pa_win_util.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * $Id$ - * Portable Audio I/O Library - * Win32 platform-specific support functions - * - * Based on the Open Source API proposed by Ross Bencina - * Copyright (c) 1999-2008 Ross Bencina - * - * Permission is hereby granted, free of charge, to any person obtaining - * a copy of this software and associated documentation files - * (the "Software"), to deal in the Software without restriction, - * including without limitation the rights to use, copy, modify, merge, - * publish, distribute, sublicense, and/or sell copies of the Software, - * and to permit persons to whom the Software is furnished to do so, - * subject to the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. - * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF - * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION - * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* - * The text above constitutes the entire PortAudio license; however, - * the PortAudio community also makes the following non-binding requests: - * - * Any person wishing to distribute modifications to the Software is - * requested to send the modifications to the original developer so that - * they can be incorporated into the canonical version. It is also - * requested that these non-binding requests be included along with the - * license above. - */ - -/** @file - @ingroup win_src - - @brief Win32 implementation of platform-specific PaUtil support functions. -*/ - -#include <windows.h> - -#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP) - #include <sys/timeb.h> /* for _ftime_s() */ -#else - #include <mmsystem.h> /* for timeGetTime() */ - #if (defined(WIN32) && (defined(_MSC_VER) && (_MSC_VER >= 1200))) && !defined(_WIN32_WCE) /* MSC version 6 and above */ - #pragma comment( lib, "winmm.lib" ) - #endif -#endif - -#include "pa_util.h" - -/* - Track memory allocations to avoid leaks. - */ - -#if PA_TRACK_MEMORY -static int numAllocations_ = 0; -#endif - - -void *PaUtil_AllocateMemory( long size ) -{ - void *result = GlobalAlloc( GPTR, size ); - -#if PA_TRACK_MEMORY - if( result != NULL ) numAllocations_ += 1; -#endif - return result; -} - - -void PaUtil_FreeMemory( void *block ) -{ - if( block != NULL ) - { - GlobalFree( block ); -#if PA_TRACK_MEMORY - numAllocations_ -= 1; -#endif - - } -} - - -int PaUtil_CountCurrentlyAllocatedBlocks( void ) -{ -#if PA_TRACK_MEMORY - return numAllocations_; -#else - return 0; -#endif -} - - -void Pa_Sleep( long msec ) -{ - Sleep( msec ); -} - -static int usePerformanceCounter_; -static double secondsPerTick_; - -void PaUtil_InitializeClock( void ) -{ - LARGE_INTEGER ticksPerSecond; - - if( QueryPerformanceFrequency( &ticksPerSecond ) != 0 ) - { - usePerformanceCounter_ = 1; - secondsPerTick_ = 1.0 / (double)ticksPerSecond.QuadPart; - } - else - { - usePerformanceCounter_ = 0; - } -} - - -double PaUtil_GetTime( void ) -{ - LARGE_INTEGER time; - - if( usePerformanceCounter_ ) - { - /* - Note: QueryPerformanceCounter has a known issue where it can skip forward - by a few seconds (!) due to a hardware bug on some PCI-ISA bridge hardware. - This is documented here: - http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q274323& - - The work-arounds are not very paletable and involve querying GetTickCount - at every time step. - - Using rdtsc is not a good option on multi-core systems. - - For now we just use QueryPerformanceCounter(). It's good, most of the time. - */ - QueryPerformanceCounter( &time ); - return time.QuadPart * secondsPerTick_; - } - else - { -#ifndef UNDER_CE - #if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP) - return GetTickCount64() * .001; - #else - return timeGetTime() * .001; - #endif -#else - return GetTickCount() * .001; -#endif - } -} |