add cairo

1 files changed, 37 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/util/cairo-script/examples/sierpinski.cs b/libs/cairo-1.16.0/util/cairo-script/examples/sierpinski.cs
new file mode 100644
index 0000000..6f95908
--- /dev/null
+++ b/libs/cairo-1.16.0/util/cairo-script/examples/sierpinski.cs
@@ -0,0 +1,37 @@
+%!CairoScript
+
+/1sqrt3 0.577359269 def
+
+/T { % cr size -- cr
+  exch % size cr
+  0 0 m 1 index 0 l 1 index dup 2 div exch //1sqrt3 mul l h
+
+  exch 2 div
+  dup 4 ge {
+    exch % size/2 cr
+
+    1 index T
+    save 1 index 0 translate 1 index T restore
+    save 1 index dup 2 div exch //1sqrt3 mul translate 1 index T restore
+
+    exch
+  } if
+  pop
+} bind def
+
+dict
+  /width  512 set
+  /height 300 set
+  surface context
+
+1 1 1 set-source-rgb paint
+
+.5 set-line-width
+
+0 300 translate
+1 -1 scale
+
+512 T 0 0 0 set-source-rgb stroke
+
+/target get (out.png) write-to-png pop
+pop