1 files changed, 18 insertions, 0 deletions
diff --git a/src/main/smp/sys/draw.smp b/src/main/smp/sys/draw.smp
new file mode 100644
index 00000000..61b250d3
--- /dev/null
+++ b/src/main/smp/sys/draw.smp
@@ -0,0 +1,18 @@
+// Software raster drawing. No window or native calls; pixels are packed RGB (0x00RRGGBB).
+u32 BLACK = 0x000000;
+u32 WHITE = 0xffffff;
+u32 RED   = 0xff0000;
+u32 GREEN = 0x00ff00;
+u32 BLUE  = 0x0000ff;
+
+// Components are clamped to bytes rather than wrapping.
+val rgb = { int r, int g, int b ->
+    r = r<0 ? 0 : r>255 ? 255 : r;
+    g = g<0 ? 0 : g>255 ? 255 : g;
+    b = b<0 ? 0 : b>255 ? 255 : b;
+    u32 color = (r<<16) | (g<<8) | b;
+    return color;
+};
+
+val Canvas = Canvas; // Pixel canvas and drawing methods
+val Button = Button; // Pointer state and rendering for a rectangular button