From 2438d7075abca8f6bfc6f580598e38555ebc5d41 Mon Sep 17 00:00:00 2001
From: Vincent Sanders <vince@netsurf-browser.org>
Date: Thu, 21 Jan 2010 23:11:08 +0000
Subject: add beginnings of path plotting

svn path=/trunk/libnsfb/; revision=9854
---
 test/polygon.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 test/polygon.c

(limited to 'test/polygon.c')

diff --git a/test/polygon.c b/test/polygon.c
new file mode 100644
index 0000000..cd7efd8
--- /dev/null
+++ b/test/polygon.c
@@ -0,0 +1,79 @@
+/* libnsfb ploygon plotter test program */
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <math.h>
+
+#include "libnsfb.h"
+#include "libnsfb_plot.h"
+#include "libnsfb_event.h"
+
+#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;
+//    nsfb_plot_pen_t pen;
+
+    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);
+
+    /* claim the whole screen for update */
+    nsfb_claim(nsfb, &box);
+
+    nsfb_plot_clg(nsfb, 0xffffffff);
+
+    radius = (box.x1 / 3);
+
+    for (sides = 13; sides >=3; sides--) {
+	    points = malloc(sizeof(nsfb_point_t) * sides);
+
+	    for (loop = 0; loop < sides;loop++) {
+		    points[loop].x = (box.x1 / 2) + 
+			    (radius * cos(loop * 2 * M_PI / sides));
+		    points[loop].y = (box.y1 / 2) + 
+			    (radius * sin(loop * 2 * M_PI / sides));
+	    }
+
+	    nsfb_plot_polygon(nsfb, (const int *)points, sides, 
+			      0xff000000 | (0xffffff / (sides * 2)));
+
+	    free(points);
+	    radius -= 25;
+    }
+
+    nsfb_update(nsfb, &box);
+    
+    while (event.type != NSFB_EVENT_CONTROL)
+        nsfb_event(nsfb, &event, -1);
+
+    return 0;
+}
-- 
cgit v1.2.3