From bf36ea80c319f307831f38c069d4e67442e4e81b Mon Sep 17 00:00:00 2001
From: Michael Drake <tlsa@netsurf-browser.org>
Date: Sun, 24 Jan 2010 21:28:04 +0000
Subject: Add test for self-crossing polygons.

svn path=/trunk/libnsfb/; revision=9904
---
 test/Makefile    |   2 +-
 test/polystar2.c | 102 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 test/runtest.sh  |   1 +
 3 files changed, 104 insertions(+), 1 deletion(-)
 create mode 100644 test/polystar2.c

diff --git a/test/Makefile b/test/Makefile
index b408f4a..b2320e3 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -1,3 +1,3 @@
-DIR_TEST_ITEMS := plottest:plottest.c;nsglobe.c frontend:frontend.c bezier:bezier.c path:path.c polygon:polygon.c polystar:polystar.c
+DIR_TEST_ITEMS := plottest:plottest.c;nsglobe.c frontend:frontend.c bezier:bezier.c path:path.c polygon:polygon.c polystar:polystar.c polystar2:polystar2.c
 
 include build/makefiles/Makefile.subdir
diff --git a/test/polystar2.c b/test/polystar2.c
new file mode 100644
index 0000000..0037f62
--- /dev/null
+++ b/test/polystar2.c
@@ -0,0 +1,102 @@
+/* libnsfb ploygon plotter test program */
+
+#define _POSIX_C_SOURCE 199506L
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <math.h>
+
+#include "libnsfb.h"
+#include "libnsfb_plot.h"
+#include "libnsfb_event.h"
+
+
+#include <time.h>
+// Sleep milliseconds
+static void sleepMilli(long ms)
+{
+    const struct timespec ts = {ms / 1000, ms % 1000 * 1000000};
+    nanosleep(&ts, NULL);
+}
+
+#define UNUSED(x) ((x) = (x))
+
+
+int main(int argc, char **argv)
+{
+    nsfb_t *nsfb;
+    nsfb_event_t event;
+    nsfb_bbox_t box;
+    uint8_t *fbptr;
+    int fbstride;
+
+    int sides;
+    int radius;
+    nsfb_point_t *points;
+    int loop;
+    double rotate;
+    int counter;
+    int colour;
+
+    UNUSED(argc);
+    UNUSED(argv);
+
+    nsfb = nsfb_init(NSFB_FRONTEND_SDL);
+    if (nsfb == NULL) {
+        fprintf(stderr, "Unable to initialise nsfb with SDL frontend\n");
+        return 1;
+    }
+
+    if (nsfb_init_frontend(nsfb) == -1) {
+        fprintf(stderr, "Unable to initialise nsfb frontend\n");
+        return 2;
+    }
+
+    /* get the geometry of the whole screen */
+    box.x0 = box.y0 = 0;
+    nsfb_get_geometry(nsfb, &box.x1, &box.y1, NULL);
+    nsfb_get_framebuffer(nsfb, &fbptr, &fbstride);
+
+    radius = (box.x1 / 3);
+    sides = 5;
+    counter = 0;
+
+    for (rotate = 0; rotate < (2 * M_PI); rotate += (M_PI / 4)) {
+        /* claim the whole screen for update */
+        nsfb_claim(nsfb, &box);
+
+        nsfb_plot_clg(nsfb, 0xffffffff);
+
+        points = malloc(sizeof(nsfb_point_t) * sides);
+
+        for (loop = 0; loop < sides;loop++) {
+            points[(2 * loop) % sides].x = (box.x1 / 2) +
+                    (radius * cos(loop * 2 * M_PI / sides + rotate));
+            points[(2 * loop) % sides].y = (box.y1 / 2) +
+                    (radius * sin(loop * 2 * M_PI / sides + rotate));
+        }
+
+        if (counter % 3 == 0)
+            colour = 0xffff0000;
+        else if (counter % 3 == 1)
+            colour = 0xff00ff00;
+        else
+            colour = 0xff0000ff;
+
+        nsfb_plot_polygon(nsfb, (const int *)points, sides, colour);
+        free(points);
+
+        if (counter % 2 == 0)
+            sides += 2;
+        counter++;
+
+        nsfb_update(nsfb, &box);
+        sleepMilli(400);
+    }
+
+    while (event.type != NSFB_EVENT_CONTROL)
+        nsfb_event(nsfb, &event, -1);
+
+    return 0;
+}
diff --git a/test/runtest.sh b/test/runtest.sh
index b9ab599..f2eb0a4 100755
--- a/test/runtest.sh
+++ b/test/runtest.sh
@@ -8,4 +8,5 @@ ${TEST_PATH}/test_bezier
 ${TEST_PATH}/test_path
 ${TEST_PATH}/test_polygon
 ${TEST_PATH}/test_polystar
+${TEST_PATH}/test_polystar2
 
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