Turning Apple-specific code into OS-independent implementation (tests pending)

example/Makefile

@@ -11,6 +11,7 @@ OS = $(shell uname -s)
 ARCH = $(shell uname -m)
 ifeq ($(OS), Darwin)
 	LDFLAGS += -framework OpenCL
+	LDFLAGS += -framework Accelerate
 else
 	LDFLAGS += -L$(ATISTREAMSDKROOT)/lib/$(ARCH)
 	LDFLAGS += -lOpenCL

example/main.cpp

@@ -50,10 +50,14 @@
 #include <math.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <OpenCL/opencl.h>
-#include "clFFT.h"
-#include <mach/mach_time.h>
-#include <Accelerate/Accelerate.h>
+#ifdef __APPLE__
+    #include <OpenCL/cl.h>
+    #include <mach/mach_time.h>
+    #include <Accelerate/Accelerate.h>
+#else
+    #include <CL/cl.h>
+#endif
+#include <clFFT.h>
 #include "procs.h"
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -87,6 +91,7 @@ cl_command_queue queue;
 
 typedef unsigned long long ulong;
 
+#ifdef __APPLE__
 double subtractTimes( uint64_t endTime, uint64_t startTime )
 {
     uint64_t difference = endTime - startTime;
@@ -104,7 +109,9 @@ double subtractTimes( uint64_t endTime, uint64_t startTime )
     
     return conversion * (double) difference;
 }
+#endif
 
+#ifdef __APPLE__
 void computeReferenceF(clFFT_SplitComplex *out, clFFT_Dim3 n, 
 					  unsigned int batchSize, clFFT_Dimension dim, clFFT_Direction dir)
 {
@@ -214,7 +221,9 @@ void computeReferenceF(clFFT_SplitComplex *out, clFFT_Dim3 n,
 	
 	vDSP_destroy_fftsetup(plan_vdsp);
 }
+#endif
 
+#ifdef __APPLE__
 void computeReferenceD(clFFT_SplitComplexDouble *out, clFFT_Dim3 n, 
 					  unsigned int batchSize, clFFT_Dimension dim, clFFT_Direction dir)
 {
@@ -324,6 +333,7 @@ void computeReferenceD(clFFT_SplitComplexDouble *out, clFFT_Dim3 n,
 	
 	vDSP_destroy_fftsetupD(plan_vdsp);
 }
+#endif
 
 double complexNormSq(clFFT_ComplexDouble a)
 {
@@ -550,12 +560,14 @@ int runTest(clFFT_Dim3 n, int batchSize, clFFT_Direction dir, clFFT_Dimension di
 		log_error("clFFT_Execute\n");
 		goto cleanup;	
 	}
-	
+
+#ifdef __APPLE__
 	t1 = mach_absolute_time(); 
 	t = subtractTimes(t1, t0);
 	char temp[100];
 	sprintf(temp, "GFlops achieved for n = (%d, %d, %d), batchsize = %d", n.x, n.y, n.z, batchSize);
 	log_perf(gflops / (float) t, 1, "GFlops/s", "%s", temp);
+#endif
 
 	if(dataFormat == clFFT_SplitComplexFormat)
 	{	
@@ -573,6 +585,7 @@ int runTest(clFFT_Dim3 n, int batchSize, clFFT_Direction dir, clFFT_Dimension di
         goto cleanup;
 	}	
 
+#ifdef __APPLE__
 	computeReferenceD(&data_oref, n, batchSize, dim, dir);
 	
 	double diff_avg, diff_max, diff_min;
@@ -597,7 +610,8 @@ int runTest(clFFT_Dim3 n, int batchSize, clFFT_Direction dir, clFFT_Dimension di
 		free(result_split.real);
 		free(result_split.imag);
 	}
-	
+#endif
+
 cleanup:
 	clFFT_DestroyPlan(plan);	
 	if(dataFormat == clFFT_SplitComplexFormat) 
@@ -726,7 +740,7 @@ int main (int argc, char * const argv[]) {
 	}
 	
 	device_id = NULL;
-/*	
+
 	unsigned int i;
 	for(i = 0; i < num_devices; i++)
 	{
@@ -763,8 +777,7 @@ int main (int argc, char * const argv[]) {
 	    test_finish();
 	    return -1;
 	}
-*/
-device_id = device_ids[1];
+
 	context = clCreateContext(0, 1, &device_id, NULL, NULL, &err);
 	if(!context || err) 
 	{

example/procs.h

+
+//
+// File:       procs.h
+//
+// Version:    <1.0>
+//
+// Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple Inc. ("Apple")
+//             in consideration of your agreement to the following terms, and your use,
+//             installation, modification or redistribution of this Apple software
+//             constitutes acceptance of these terms.  If you do not agree with these
+//             terms, please do not use, install, modify or redistribute this Apple
+//             software.
+//
+//             In consideration of your agreement to abide by the following terms, and
+//             subject to these terms, Apple grants you a personal, non - exclusive
+//             license, under Apple's copyrights in this original Apple software ( the
+//             "Apple Software" ), to use, reproduce, modify and redistribute the Apple
+//             Software, with or without modifications, in source and / or binary forms;
+//             provided that if you redistribute the Apple Software in its entirety and
+//             without modifications, you must retain this notice and the following text
+//             and disclaimers in all such redistributions of the Apple Software. Neither
+//             the name, trademarks, service marks or logos of Apple Inc. may be used to
+//             endorse or promote products derived from the Apple Software without specific
+//             prior written permission from Apple.  Except as expressly stated in this
+//             notice, no other rights or licenses, express or implied, are granted by
+//             Apple herein, including but not limited to any patent rights that may be
+//             infringed by your derivative works or by other works in which the Apple
+//             Software may be incorporated.
+//
+//             The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO
+//             WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
+//             WARRANTIES OF NON - INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A
+//             PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION
+//             ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
+//
+//             IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
+//             CONSEQUENTIAL DAMAGES ( INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+//             SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+//             INTERRUPTION ) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION
+//             AND / OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER
+//             UNDER THEORY OF CONTRACT, TORT ( INCLUDING NEGLIGENCE ), STRICT LIABILITY OR
+//             OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Copyright ( C ) 2008 Apple Inc. All Rights Reserved.
+//
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+
+#define test_start()
+#define log_perf(_number, _higherBetter, _numType, _format, ...) printf("Performance Number " _format " (in %s, %s): %g\n",##__VA_ARGS__, _numType, _higherBetter?"higher is better":"lower is better" , _number)
+#define log_info printf
+#define log_error printf
+#define test_finish()

include/clFFT.h

@@ -49,13 +49,17 @@
 #ifndef __CLFFT_H
 #define __CLFFT_H
 
+#include <stdio.h>
+#ifdef __APPLE__
+    #include <OpenCL/cl.h>
+#else
+    #include <CL/cl.h>
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#include <OpenCL/opencl.h>
-#include <stdio.h>
-
 // XForm type
 typedef enum 
 {