import the new renderer and clean things up.

i integrated the renderer i've been developing
on the tinyrend repo and got rid of a bunch of
stuff that's no longer necessary. also began
structuring things to fit the new interface i
have in mind.

there are still some artifacts with the
projection xforms that cause issues with
clipping and division by zero.

1 files changed, 29 insertions, 0 deletions

diff --git a/viewport.c b/viewport.c
new file mode 100644
index 0000000..81e1653
--- /dev/null
+++ b/viewport.c
@@ -0,0 +1,29 @@
+#include <u.h>
+#include <libc.h>
+#include <thread.h>
+#include <draw.h>
+#include <memdraw.h>
+#include <geometry.h>
+#include "libobj/obj.h"
+#include "graphics.h"
+#include "internal.h"
+
+Viewport *
+mkviewport(Rectangle r)
+{
+	Viewport *v;
+
+	v = emalloc(sizeof *v);
+	v->p = Pt2(0,0,1);
+	v->bx = Vec2(1,0);
+	v->by = Vec2(0,1);
+	v->fbctl = mkfbctl(r);
+	return v;
+}
+
+void
+rmviewport(Viewport *v)
+{
+	rmfbctl(v->fbctl);
+	free(v);
+}