Imported Upstream version 3.2.2

[debian/gnuradio] / gnuradio-core / src / lib / general / qa_gr_math.cc

diff --git a/gnuradio-core/src/lib/general/qa_gr_math.cc b/gnuradio-core/src/lib/general/qa_gr_math.cc
new file mode 100644 (file)
index 0000000..b3a1b95
--- /dev/null
+++ b/gnuradio-core/src/lib/general/qa_gr_math.cc
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2008 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <gr_math.h>
+#include <qa_gr_math.h>
+#include <cppunit/TestAssert.h>
+#include <stdio.h>
+
+void
+qa_gr_math::test_binary_slicer1 ()
+{
+  float x[5] = {-1, -0.5, 0, 0.5, 1.0};
+  unsigned int z[5] = {0, 0, 1, 1, 1};
+  unsigned int y;
+
+  //printf("\nBinary\n");
+  for (unsigned int i = 0; i < 5; i++) {
+    y = gr_binary_slicer(x[i]);
+    //printf("in: %f   out: %d   desired: %d\n", x[i], y, z[i]);
+
+    CPPUNIT_ASSERT_DOUBLES_EQUAL(y, z[i], 1e-9);
+  }
+
+  //printf("\nBranchless Binary\n");
+  for (unsigned int i = 0; i < 5; i++) {
+    y = gr_branchless_binary_slicer(x[i]);
+    //printf("in: %f   out: %d   desired: %d\n", x[i], y, z[i]);
+
+    CPPUNIT_ASSERT_DOUBLES_EQUAL(y, z[i], 1e-9);    
+  }
+}
+
+void
+qa_gr_math::test_quad_0deg_slicer1 ()
+{
+  gr_complex x[4] = {gr_complex(1, 0),
+                    gr_complex(0, 1), 
+                    gr_complex(-1, 0),
+                    gr_complex(0, -1)};
+
+  unsigned int z[4] = {0, 1, 2, 3};
+  unsigned int y;
+
+  //printf("\nQuad0\n");
+  for (unsigned int i = 0; i < 4; i++) {
+    y = gr_quad_0deg_slicer(x[i]);
+    //printf("in: %.4f+j%.4f   out: %d   desired: %d\n", x[i].real(), x[i].imag(), y, z[i]);
+
+    CPPUNIT_ASSERT_DOUBLES_EQUAL(y, z[i], 1e-9);
+  }
+
+  //printf("\nBranchless Quad0\n");
+  for (unsigned int i = 0; i < 4; i++) {
+    y = gr_branchless_quad_0deg_slicer(x[i]);
+    //printf("in: %.4f+j%.4f   out: %d   desired: %d\n", x[i].real(), x[i].imag(), y, z[i]);
+    
+    CPPUNIT_ASSERT_DOUBLES_EQUAL(y, z[i], 1e-9);
+  }
+}
+
+void
+qa_gr_math::test_quad_45deg_slicer1 ()
+{
+  gr_complex x[4] = {gr_complex(0.707, 0.707),
+                    gr_complex(-0.707, 0.707), 
+                    gr_complex(-0.707, -0.707),
+                    gr_complex(0.707, -0.707)};
+  
+  unsigned int z[4] = {0, 1, 2, 3};
+  unsigned int y;
+
+  //printf("\nQuad45\n");
+  for (unsigned int i = 0; i < 4; i++) {
+    y = gr_quad_45deg_slicer(x[i]);
+    //printf("in: %.4f+j%.4f   out: %d   desired: %d\n", x[i].real(), x[i].imag(), y, z[i]);
+
+    CPPUNIT_ASSERT_DOUBLES_EQUAL(y, z[i], 1e-9);
+  }
+
+  //printf("\nBranchless Quad45\n");
+  for (unsigned int i = 0; i < 4; i++) {
+    y = gr_branchless_quad_45deg_slicer(x[i]);
+    //printf("in: %.4f+j%.4f   out: %d   desired: %d\n", x[i].real(), x[i].imag(), y, z[i]);
+
+    CPPUNIT_ASSERT_DOUBLES_EQUAL(y, z[i], 1e-9);
+  }
+}