/* |
File: Demonstrate.h |
Abstract: Common declarations for vDSP examples. |
Version: 1.2 |
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File: Demonstrate.h |
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Description: |
Common declarations for the vDSP examples. |
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Copyright: |
Copyright (C) 2007 Apple Inc. All rights reserved. |
*/ |
#ifndef __MAIN__ |
#define __MAIN__ |
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#ifdef __cplusplus |
extern "C" { |
/* This tells a C++ compiler that the following routines |
are defined in C and so must be called using C linkage, |
not C++ linkage. We do not need this in this code |
since all of our routines are in C, but it illustrates |
good practice for header files that may be included |
from C or C++ programs. |
*/ |
#endif |
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// These are routines that illustrate calls to a few vDSP routines. |
void DemonstrateConvolution(void); |
void DemonstrateDFT(void); |
void DemonstrateFFT(void); |
void DemonstrateFFT2D(void); |
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/* The Clock routine reports the current time, but the format it uses |
should not be manipulated by the user. The routine ClockToSeconds |
takes two times reported by Clock and returns their difference in |
seconds. (It also subtracts the average latency of the Clock routine |
from the difference.) |
*/ |
#include <mach/mach_time.h> // Declare mach_absolute_time. |
typedef uint64_t ClockData; // Define type for clock data. |
ClockData Clock(void); // Declare clock routine. |
double ClockToSeconds(ClockData t1, ClockData t0); |
// Return number of seconds between two times. |
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#ifdef __cplusplus |
} |
#endif |
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#endif |
