src/main.rs

@@ -69,73 +69,16 @@ pub fn efi_main(_image: Handle, mut st: SystemTable<Boot>) -> Status {
         }
     };
 
-    let fb = uefi_fb::UefiFb::new();
-    uefifb_test(&fb)
-}
+    let mut fb = uefi_fb::UefiFb::new();
     
-fn uefifb_test(fb: &UefiFb) -> Status {
+    // None sets a sane default of 1024x768
+    fb.set_graphics_mode(None);
+    fb.fb_blt_fill(BltPixel::new(100, 149, 237), (0, 0), (1024, 768));
 
-    // run tests here
-    info!("GOP Framebuffer test complete");
-    Status::SUCCESS
-}
-
-// Set a larger graphics mode.
-fn set_graphics_mode(gop: &mut GraphicsOutput) {
-    // We know for sure QEMU has a 1024x768 mode.
-    let mode = gop
-        .modes()
-        .find(|mode| {
-            let info = mode.info();
-            info.resolution() == (1024, 768)
-        })
-        .unwrap();
-
-    gop.set_mode(&mode).expect("Failed to set graphics mode");
-}
-
-// Fill the screen with color.
-fn fill_color(gop: &mut GraphicsOutput) {
-    let op = BltOp::VideoFill {
-        // Cornflower blue.
-        color: BltPixel::new(100, 149, 237),
-        dest: (0, 0),
-        dims: (1024, 768),
-    };
-
-    gop.blt(op).expect("Failed to fill screen with color");
-}
-
-// Draw directly to the frame buffer.
-fn draw_fb(gop: &mut GraphicsOutput) {
-    // The `virtio-gpu-pci` graphics device we use on aarch64 doesn't
-    // support `PixelFormat::BltOnly`.
-    if cfg!(target_arch = "aarch64") {
-        return;
-    }
-
-    let mi = gop.current_mode_info();
+    let mi = fb.current_mode_info();
     let stride = mi.stride();
     let (width, height) = mi.resolution();
 
-    let mut fb = gop.frame_buffer();
-
-    type PixelWriter = unsafe fn(&mut FrameBuffer, usize, [u8; 3]);
-    unsafe fn write_pixel_rgb(fb: &mut FrameBuffer, pixel_base: usize, rgb: [u8; 3]) {
-        fb.write_value(pixel_base, rgb);
-    }
-    unsafe fn write_pixel_bgr(fb: &mut FrameBuffer, pixel_base: usize, rgb: [u8; 3]) {
-        fb.write_value(pixel_base, [rgb[2], rgb[1], rgb[0]]);
-    }
-    let write_pixel: PixelWriter = match mi.pixel_format() {
-        PixelFormat::Rgb => write_pixel_rgb,
-        PixelFormat::Bgr => write_pixel_bgr,
-        _ => {
-            info!("This pixel format is not supported by the drawing demo");
-            return;
-        }
-    };
-
     let mut fill_rectangle = |(x1, y1), (x2, y2), color| {
         assert!((x1 < width) && (x2 < width), "Bad X coordinate");
         assert!((y1 < height) && (y2 < height), "Bad Y coordinate");
@@ -144,7 +87,7 @@ fn draw_fb(gop: &mut GraphicsOutput) {
                 unsafe {
                     let pixel_index = (row * stride) + column;
                     let pixel_base = 4 * pixel_index;
-                    write_pixel(&mut fb, pixel_base, color);
+                    fb.draw_fb(pixel_base, color);
                 }
             }
         }
@@ -152,4 +95,7 @@ fn draw_fb(gop: &mut GraphicsOutput) {
 
     fill_rectangle((50, 30), (150, 600), [250, 128, 64]);
     fill_rectangle((400, 120), (750, 450), [16, 128, 255]);
+
+    info!("GOP Framebuffer test complete");
+    Status::SUCCESS
 }