1 files changed, 66 insertions, 0 deletions
diff --git a/src/window/x11.rs b/src/window/x11.rs
new file mode 100644
index 0000000..d4bcbe4
--- /dev/null
+++ b/src/window/x11.rs
@@ -0,0 +1,66 @@
+use crate::window::GraphicsContext;
+use buffer::Buffer;
+use geometry::HasDimensions;
+use raw_window_handle::XlibHandle;
+use std::os::raw::{c_char, c_uint};
+use x11_dl::xlib::{Display, Visual, Xlib, ZPixmap, GC};
+
+pub struct X11GraphicsContext {
+    handle: XlibHandle,
+    lib: Xlib,
+    gc: GC,
+    visual: *mut Visual,
+    depth: i32,
+}
+
+impl X11GraphicsContext {
+    pub unsafe fn new(handle: XlibHandle) -> Self {
+        let lib = match Xlib::open() {
+            Ok(lib) => lib,
+            Err(e) => panic!("{:?}", e),
+        };
+        let screen = (lib.XDefaultScreen)(handle.display as *mut Display);
+        let gc = (lib.XDefaultGC)(handle.display as *mut Display, screen);
+        let visual = (lib.XDefaultVisual)(handle.display as *mut Display, screen);
+        let depth = (lib.XDefaultDepth)(handle.display as *mut Display, screen);
+
+        Self { handle, lib, gc, visual, depth }
+    }
+}
+
+impl GraphicsContext for X11GraphicsContext {
+    unsafe fn blit(&mut self, buffer: &Buffer) {
+        let array = buffer.as_u32_slice();
+        let dimensions = buffer.dimensions();
+        //create image
+        let image = (self.lib.XCreateImage)(
+            self.handle.display as *mut Display,
+            self.visual,
+            self.depth as u32,
+            ZPixmap,
+            0,
+            (array.as_ptr()) as *mut c_char,
+            dimensions.width as u32,
+            dimensions.height as u32,
+            32,
+            (dimensions.width * 4) as i32,
+        );
+
+        //push image to window
+        (self.lib.XPutImage)(
+            self.handle.display as *mut Display,
+            self.handle.window,
+            self.gc,
+            image,
+            0,
+            0,
+            0,
+            0,
+            dimensions.width as c_uint,
+            dimensions.height as c_uint,
+        );
+
+        (*image).data = std::ptr::null_mut();
+        (self.lib.XDestroyImage)(image);
+    }
+}