From fd3c7753435658a6aeebf1b68d18178a6c7cf57d Mon Sep 17 00:00:00 2001
From: Vincent Sanders <vince@netsurf-browser.org>
Date: Wed, 6 Jan 2010 22:26:55 +0000
Subject: add bezier curve plotters

svn path=/trunk/libnsfb/; revision=9794
---
 test/Makefile |   2 +-
 test/bezier.c | 112 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 113 insertions(+), 1 deletion(-)
 create mode 100644 test/bezier.c

(limited to 'test')

diff --git a/test/Makefile b/test/Makefile
index 6d4f4fa..dcb3d8f 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -1,3 +1,3 @@
-DIR_TEST_ITEMS := plottest:plottest.c;nsglobe.c frontend:frontend.c
+DIR_TEST_ITEMS := plottest:plottest.c;nsglobe.c frontend:frontend.c bezier:bezier.c
 
 include build/makefiles/Makefile.subdir
diff --git a/test/bezier.c b/test/bezier.c
new file mode 100644
index 0000000..d44779b
--- /dev/null
+++ b/test/bezier.c
@@ -0,0 +1,112 @@
+/* libnsfb plotetr test program */
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.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;
+    nsfb_bbox_t box2;
+    uint8_t *fbptr;
+    int fbstride;
+    nsfb_point_t ctrla;
+    nsfb_point_t ctrlb;
+    int loop;
+
+    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);
+
+    box2.x0=100;
+    box2.y0=100;
+
+    box2.x1=400;
+    box2.y1=400;
+
+    for (loop=-300;loop < 600;loop+=100) {
+    ctrla.x = 100;
+    ctrla.y = loop;
+
+    ctrlb.x = 400;
+    ctrlb.y = 500 - loop;
+
+    nsfb_plot_cubic_bezier(nsfb, &box2, &ctrla, &ctrlb, 0xff000000);
+    }
+
+
+    box2.x0=400;
+    box2.y0=100;
+
+    box2.x1=600;
+    box2.y1=400;
+
+    nsfb_plot_line(nsfb, &box2, 1, 0xff000000, false, false);
+
+    box2.x0=800;
+    box2.y0=100;
+
+    box2.x1=600;
+    box2.y1=400;
+
+    nsfb_plot_line(nsfb, &box2, 1, 0xff000000, false, false);
+
+    box2.x0=400;
+    box2.y0=100;
+
+    box2.x1=800;
+    box2.y1=100;
+
+    ctrla.x = 600;
+    ctrla.y = 400;
+
+    nsfb_plot_cubic_bezier(nsfb, &box2, &ctrla, &ctrla, 0xffff0000);
+
+    box2.x0=400;
+    box2.y0=100;
+
+    box2.x1=800;
+    box2.y1=100;
+
+    ctrla.x = 600;
+    ctrla.y = 400;
+
+    nsfb_plot_quadratic_bezier(nsfb, &box2, &ctrla, 0xff0000ff);
+
+    nsfb_update(nsfb, &box);
+    
+    while (event.type != NSFB_EVENT_CONTROL)
+        nsfb_event(nsfb, &event, -1);
+
+    return 0;
+}
-- 
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