From 27d323f7ce88b238b5dc94f350832b081e7ca6ff Mon Sep 17 00:00:00 2001
From: TerminalCursor <tcurse@terminalcursor.xyz>
Date: Wed, 29 Jun 2022 21:14:02 -0700
Subject: Initial commit

---
 src/gfx.rs | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 src/gfx.rs

(limited to 'src/gfx.rs')

diff --git a/src/gfx.rs b/src/gfx.rs
new file mode 100644
index 0000000..fda870c
--- /dev/null
+++ b/src/gfx.rs
@@ -0,0 +1,54 @@
+use uefi::prelude::*;
+use uefi::proto::console::gop::*;
+
+pub struct GOP<'boot>(&'boot mut GraphicsOutput<'boot>);
+
+impl<'boot> GOP<'boot> {
+	pub fn new(st: &SystemTable<Boot>) -> Result<GOP<'boot>, uefi::Error> {
+		let res = st.boot_services().locate_protocol::<GraphicsOutput>();
+		match res {
+			Ok(protocol) => {
+				return Ok(unsafe { GOP(&mut *protocol.get()) })
+			},
+			Err(e) => {return Err(e)}
+		}
+	}
+
+	pub fn get_modes(&'boot self) -> impl ExactSizeIterator<Item = Mode> + 'boot {
+		self.0.modes()
+	}
+
+	pub fn set_mode(&mut self, mode: &Mode) -> Result<(), uefi::Error> {
+		self.0.set_mode(mode)
+	}
+
+	pub fn set_highest_resolution(&mut self) -> Result<(), uefi::Error> {
+		let mut last_mode;
+		let res = self.0.query_mode(0);
+		match res {
+			Ok(mode) => {last_mode = mode;},
+			Err(e) => {return Err(e)}
+		}
+		for mode in self.0.modes() {
+			last_mode = mode;
+		}
+		self.0.set_mode(&last_mode)
+	}
+
+	pub fn get_resolution(&self) -> (usize, usize) {
+		self.0.current_mode_info().resolution()
+	}
+
+	pub fn fill_box(&mut self,
+		x: usize, y: usize,
+		dx: usize, dy: usize,
+		r: u8, g: u8, b: u8)
+		-> Result<(), uefi::Error> {
+		let blt_op = BltOp::VideoFill {
+			color: BltPixel::new(r, g, b),
+			dest: (x, y),
+			dims: (dx, dy)
+		};
+		self.0.blt(blt_op)
+	}
+}
-- 
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