Turned initial codebase into a library and an example application

* Added dedicated Makefiles
* Added support for Mac OS 10.6
* TODO: proper Linux and Windows support
* Note: we need to add licensing headers!

.gitignore

+# patterns
+*.o
+*.a
+
+# files
+clfft_example

example/Makefile

+TARGET = clfft_example
+
+CXXFLAGS += -O3 -Wall -g -I../include
+LDFLAGS += ../lib/libclfft.a
+
+OS = $(shell uname -s)
+ifeq ($(OS), Darwin)
+	LDFLAGS += -framework OpenCL
+endif
+
+
+$(TARGET): main.cpp
+	g++ $(CXXFLAGS) $(LDFLAGS) -o $(TARGET) main.cpp
+
+clean:
+	rm -f $(TARGET)

example/main.cpp

@@ -2,8 +2,12 @@
 #include <math.h> 
 #include <stdio.h> 
 #include <stdlib.h> 
-#include <CL/cl.h> 
-#include "clFFT.h" 
+#ifdef __APPLE__  
+	#include <OpenCL/cl.h> 
+#else
+	#include <CL/cl.h> 
+#endif 
+#include <clFFT.h> 
 #include <sys/types.h> 
 #include <sys/stat.h> 
 #include <stdint.h> 
@@ -120,7 +124,7 @@ int runTest(clFFT_Dim3 n, int batchSize, clFFT_Direction dir, clFFT_Dimension di
     else { 
 
 // ADDED
-FILE* f = fopen ("waveform", "r");
+FILE* f = fopen ("test_waveform.dat", "r");
         for(i = 0; i < length; i++) 
         { 
 // ADDED

include/clFFT.h

@@ -4,8 +4,13 @@
 #ifdef __cplusplus 
 extern "C" { 
 #endif 
-  
-#include <CL/cl.h> 
+
+#ifdef __APPLE__  
+	#include <OpenCL/cl.h> 
+#else
+	#include <CL/cl.h> 
+#endif
+
 #include <stdio.h> 
   
 // XForm type 
@@ -15,7 +20,7 @@ typedef enum
     clFFT_Inverse   =    1 
      
 }clFFT_Direction; 
-  
+
 // XForm dimension 
 typedef enum 
 { 

src/Makefile

+TARGET = libclfft.a
+
+CXXFLAGS += -O3 -Wall -g -I../include
+OS = $(shell uname -s)
+ifeq ($(OS), Darwin)
+	CXXFLAGS += -I/System/Library/Frameworks
+endif
+
+OBJECTS = fft_setup.o fft_execute.o fft_kernelstring.o
+
+
+$(TARGET): $(OBJECTS)
+	ar rcs $(TARGET) $(OBJECTS)
+	mkdir -p ../lib
+	cp $(TARGET) ../lib/
+
+fft_setup.o: fft_setup.cpp fft_internal.h fft_base_kernels.h
+	g++ $(CXXFLAGS) -c fft_setup.cpp
+	
+fft_execute.o: fft_execute.cpp ../include/clFFT.h fft_internal.h
+	g++ $(CXXFLAGS) -c fft_execute.cpp
+
+fft_kernelstring.o: fft_kernelstring.cpp ../include/clFFT.h fft_internal.h
+	g++ $(CXXFLAGS) -c fft_kernelstring.cpp
+
+clean:
+	rm -f *.o
+	rm -f *.a
\ No newline at end of file

src/fft_execute.cpp

 #include "fft_internal.h" 
-#include "clFFT.h" 
+#include <clFFT.h> 
 #include <stdlib.h> 
 #include <stdio.h> 
 #include <math.h> 

src/fft_kernelstring.cpp

@@ -6,7 +6,7 @@
 #include <string.h> 
 #include <assert.h> 
 #include "fft_internal.h" 
-#include "clFFT.h" 
+#include <clFFT.h> 
   
 using namespace std;