Simple tool to plot prototype from test module

1 files changed, 59 insertions, 0 deletions

diff --git a/test/plottool.c b/test/plottool.c
new file mode 100644
index 0000000..c52dfe3
--- /dev/null
+++ b/test/plottool.c
@@ -0,0 +1,59 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "ut_dca_pr.h"
+#include "ut_dca_pr_long.h"
+
+#define FILL_IF_MATCH(SZ, H, NAME, MODULE) \
+    do { \
+        if (strcmp(#MODULE, NAME) == 0) { \
+            SZ = MODULE.get_proto_sz(); \
+	    H = MODULE.get_proto(); \
+	} \
+    } while (0) \
+
+int main(int argc, char** argv) {
+
+    if (argc != 2) {
+        fprintf(stderr, "expected one argument\n");
+	return 1;
+    }
+
+    const char * const name = argv[1];
+    FILE* pipe;
+    size_t sz = 0;
+    const float* h;
+
+    pipe = popen("gnuplot -persistent", "w");
+
+    if (!pipe) {
+        fprintf(stderr, "unable launch gnuplot\n");
+        return 1;
+    }
+
+    FILL_IF_MATCH(sz, h, name, ut_dca_pr);
+    FILL_IF_MATCH(sz, h, name, ut_dca_pr_long);
+
+    if (!sz) {
+        fprintf(stderr, "no data to plot\n");
+        pclose(pipe);
+	return 1;
+    }
+
+    fprintf(pipe, "set title \"%s\" noenhanced \n", name);
+    fprintf(pipe, "set term x11 \n");
+    fprintf(pipe, "set style line 1linecolor rgb '#0060ad' linetype 1 linewidth 2 pointtype 7 pointsize 0.1 \n");
+    fprintf(pipe, "plot '-' with linespoints linestyle 1 \n");
+    int i;
+
+    for (size_t i = 0; i < sz; i++) {
+        fprintf(pipe, "%zu %lf\n", i, h[i]);
+    }
+
+    fprintf(pipe, "e");
+
+    pclose(pipe);
+
+    return 0;
+}