Merge branch 'volk' into next

1 files changed, 86 insertions, 0 deletions

diff --git a/volk/lib/qa_32fc_multiply_aligned16.cc b/volk/lib/qa_32fc_multiply_aligned16.cc
new file mode 100644
index 000000000..e1f7eab3d
--- /dev/null
+++ b/volk/lib/qa_32fc_multiply_aligned16.cc
@@ -0,0 +1,86 @@
+#include <volk/volk_runtime.h>
+#include <volk/volk.h>
+#include <qa_32fc_multiply_aligned16.h>
+#include <stdlib.h>
+#include <math.h>
+#include <time.h>
+
+
+
+#define assertcomplexEqual(expected, actual, delta)			\
+  CPPUNIT_ASSERT_DOUBLES_EQUAL (std::real(expected), std::real(actual), fabs(std::real(expected)) * delta); \
+  CPPUNIT_ASSERT_DOUBLES_EQUAL (std::imag(expected), std::imag(actual), fabs(std::imag(expected))* delta);	
+
+#define	ERR_DELTA	(1e-3)
+
+//test for sse
+static float uniform() {
+  return 2.0 * ((float) rand() / RAND_MAX - 0.5);	// uniformly (-1, 1)
+}
+
+static void
+random_floats (float *buf, unsigned n)
+{
+  for (unsigned i = 0; i < n; i++)
+    buf[i] = uniform ();
+}
+
+#ifdef LV_HAVE_SSE3
+void qa_32fc_multiply_aligned16::t1() {
+
+  const int vlen = 2046;
+  const int ITERS = 100000;
+
+  int i;
+  volk_environment_init();
+  int ret;
+  clock_t start, end;
+  double total;
+  std::complex<float>* input;
+  std::complex<float>* taps;
+  
+  std::complex<float>* result_generic;
+  std::complex<float>* result_sse3;
+
+  ret = posix_memalign((void**)&input, 16, vlen*2*sizeof(float));
+  ret = posix_memalign((void**)&taps, 16, vlen*2*sizeof(float));
+  ret = posix_memalign((void**)&result_generic, 16, vlen*2*sizeof(float));
+  ret = posix_memalign((void**)&result_sse3, 16, vlen*2*sizeof(float));
+  
+  random_floats((float*)input, vlen * 2);
+  random_floats((float*)taps, vlen * 2);
+  
+  printf("32fc_multiply_aligned16\n");
+
+  start = clock();
+  for(int count = 0; count < ITERS; ++count) {
+    volk_32fc_multiply_aligned16_manual(result_generic, input, taps, vlen,  "generic");
+  }
+  end = clock();
+  total = (double)(end-start)/(double)CLOCKS_PER_SEC;
+  printf("generic_time: %f\n", total);
+
+  start = clock();
+  for(int count = 0; count < ITERS; ++count) {
+    volk_32fc_multiply_aligned16_manual(result_sse3, input, taps, vlen, "sse3");
+  }
+  end = clock();
+  total = (double)(end-start)/(double)CLOCKS_PER_SEC;
+  printf("sse3_time: %f\n", total);
+
+  for(i = 0; i < vlen; i++){
+    assertcomplexEqual(result_generic[i], result_sse3[i], ERR_DELTA);
+  }
+
+  free(input);
+  free(taps);
+  free(result_generic);
+  free(result_sse3);
+  
+}
+#else
+void qa_32fc_multiply_aligned16::t1() {
+  printf("sse3 not available... no test performed\n");
+}
+
+#endif /* LV_HAVE_SSE3 */