build: add some pixmaps for the oled UI, and generated rust code at build time

Cargo.toml

@@ -132,3 +132,6 @@ incremental      = false
 lto              = 'fat'
 opt-level        = 's'
 overflow-checks  = false
+
+[build-dependencies]
+image = "0.25.8"

assets/bike.pbm

@@ -0,0 +1,12 @@
+P1
+# Created by GIMP version 3.0.4 PNM plug-in
+32 19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assets/brakelight-off.pbm

@@ -0,0 +1,7 @@
+P1
+# Created by GIMP version 3.0.4 PNM plug-in
+17 14
+0000001100000000000001100100000000000100001000000000010000010000000001
+0000001000000000100000010000000010000000100000000100000001000000000100
+0000100000000010000001000000000010000010000000000010000100000000000011
+0010000000000000011000000000

assets/brakelight-on.pbm

@@ -0,0 +1,7 @@
+P1
+# Created by GIMP version 3.0.4 PNM plug-in
+17 14
+0000001100000011000001111100011000000111111011000000011111110000001101
+1111111000111000111111110110000011111111100000000111111111000000000111
+1111101100000011111111000111000011111110000001100011111101100000000011
+1110001100000000011000000110

assets/gps-off.pbm

@@ -0,0 +1,7 @@
+P1
+# Created by GIMP version 3.0.4 PNM plug-in
+16 16
+0100001111000010111001000010011101111011110111100011111001111100000111
+0000111000000111100111100000010111111010000000101111010000000010111101
+0000000001111110000000001110011100000001111001111000001110100101110001
+1100011000111011100001100001110100000000000010

assets/gps-on.pbm

@@ -0,0 +1,7 @@
+P1
+# Created by GIMP version 3.0.4 PNM plug-in
+16 16
+0000001111000000000001111110000000001111111100000001111001111000000111
+0000111000000111000011100000011110011110000000111111110000000011111111
+0000000001111110000000000111111000000000001111000000000000111100000000
+0000011000000000000001100000000000000000000000

assets/headlight-off.pbm

@@ -0,0 +1,7 @@
+P1
+# Created by GIMP version 3.0.4 PNM plug-in
+17 14
+0000000001100000000000000100110000000000001000010000000000010000010000
+0000001000000100000000010000001000000000100000001000000001000000010000
+0000100000010000000001000000100000000010000010000000000100001000000000
+0010011000000000000011000000

assets/headlight-on.pbm

@@ -0,0 +1,7 @@
+P1
+# Created by GIMP version 3.0.4 PNM plug-in
+17 14
+0110000001100000000011000111110000000001101111110001100000011111110000
+1110001111111100000011011111111000000000111111111000000001111111110000
+0110111111110001110001111111101100000011111110000000110111111000000110
+0011111000001100000011000000

assets/imu-off.pbm

@@ -0,0 +1,7 @@
+P1
+# Created by GIMP version 3.0.4 PNM plug-in
+16 16
+0100001000000010111001010000011101111000100011100011110101011100000111
+0110111000000011110111000000000111111010000000011111010100000001111111
+1010000001111110000100001111111110100101110000111100101110000001110011
+1100000000111011101000000001110111000000000010

assets/imu-on.pbm

@@ -0,0 +1,7 @@
+P1
+# Created by GIMP version 3.0.4 PNM plug-in
+16 16
+0000001000000000000001010000000000001000100000000001010101000000000011
+0110000000000001010000000000000101000010000000010100010100000001011111
+1010000001000000000100001011111110100101010000010100101010000000100010
+0100000000000010001000000000000111000000000000

build.rs

@@ -1,7 +1,59 @@
+use std::fs;
+use std::io::Write;
+use std::path::Path;
+use std::fs::File;
+use image::GenericImageView;
+
 fn main() {
     linker_be_nice();
     // make sure linkall.x is the last linker script (otherwise might cause problems with flip-link)
     println!("cargo:rustc-link-arg=-Tlinkall.x");
+
+    let asset_path = Path::new("assets");
+
+    let mut image_output = File::create(Path::new("target/images.rs")).unwrap();
+    for image in fs::read_dir(asset_path).unwrap() {
+        let fname = image.unwrap().file_name();
+        let fname_str = fname.to_str().unwrap();
+        if fname_str.ends_with(".pbm") {
+            let img = image::open(asset_path.join(fname_str)).unwrap();
+            let img_name = fname_str.rsplit_once('.').unwrap().0.to_uppercase().replace("-", "_");
+
+            let mut converted_row = Vec::new();
+            let mut byte_buf = String::new();
+            image_output.write_all(format!("pub const {img_name}: ImageRaw<BinaryColor> = ImageRaw::new(&[\n").as_bytes()).unwrap();
+            for (x, _, pixel) in img.pixels() {
+                if pixel.0 == [0, 0, 0, 255] {
+                    byte_buf.push('1');
+                } else {
+                    byte_buf.push('0');
+                }
+                if byte_buf.len() == 8 {
+                    converted_row.push(byte_buf);
+                    byte_buf = String::new();
+                }
+                if x == img.width() - 1 {
+                    if !byte_buf.is_empty() {
+                        byte_buf.push('_');
+                        for _ in 0..(9 - byte_buf.len()) {
+                            byte_buf.push('0');
+                        }
+                        converted_row.push(byte_buf);
+                        byte_buf = String::new();
+                    }
+                    image_output.write_all(b"    ").unwrap();
+                    for pix in converted_row.iter() {
+                        image_output.write_all(format!("0b{pix}, ").as_bytes()).unwrap();
+                    }
+                    image_output.write_all(b"\n").unwrap();
+                    converted_row = Vec::new();
+                }
+            }
+
+            image_output.write_all(format!("], {});\n", img.width()).as_bytes()).unwrap();
+            println!("cargo::rerun-if-changed={fname_str}");
+        }
+    }
 }
 
 fn linker_be_nice() {