Merge branch 'wasm' into 'master'

Wasm See merge request !67

Merge branch 'wasm' into 'master'
Wasm See merge request !67
1593d4af · Jeremy Soller · 904157c3 · bd21395d · 1593d4af · 1593d4af
Commit 1593d4af authored Mar 02, 2021 by Jeremy Soller
14 changed files
--- a/.gitignore
+++ b/.gitignore
@@ -9,4 +9,5 @@

 # Generated by Cargo
 Cargo.lock
-/target/
+target/
+node_modules/
\ No newline at end of file
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

+## 0.3.31
+
+* Web support
+
 ## 0.3.28

 * Add sdl2 bundled and static feature

--- a/Cargo.toml
+++ b/Cargo.toml
 [package]
 name = "orbclient"
-version = "0.3.30"
+version = "0.3.31"
 authors = ["Jeremy Soller <jackpot51@gmail.com>"]
 description = "The Orbital Client Library"
 documentation = "https://docs.rs/orbclient"
@@ -17,7 +17,7 @@ keywords = [
 name = "orbclient"
 path = "src/lib.rs"

-[target.'cfg(not(target_os = "redox"))'.dependencies]
+[target.'cfg(all(not(target_os = "redox"), not(target_arch = "wasm32")))'.dependencies]
 sdl2 = { version = "0.34", features = ["raw-window-handle"] }
 sdl2-sys = "0.34"
 libc = "0.2"
@@ -26,6 +26,35 @@ raw-window-handle = "0.3"
 [target.'cfg(target_os="redox")'.dependencies]
 redox_syscall = { version = "0.2.1" }

+[target.'cfg(target_arch = "wasm32")'.dependencies]
+wasm-bindgen = "0.2.69"
+# js-sys = "0.3"
+
+[target.'cfg(target_arch = "wasm32")'.dependencies.web-sys]
+version = "0.3"
+features = [
+    "Node", 
+    "Element", 
+    "console", 
+    "CanvasRenderingContext2d", 
+    "Document",  
+    "Element", 
+    "ImageData", 
+    "HtmlCanvasElement", 
+    "HtmlElement", 
+    "Window", 
+    "CssStyleDeclaration", 
+    "MouseEvent", 
+    "KeyboardEvent", 
+    "WheelEvent",
+    "FocusEvent",
+    "DragEvent",
+    "DataTransfer",
+    "Navigator",
+    "Clipboard",
+    "DomRect"
+]
+
 [features]
 default = ["bundled"]
 bundled = ["sdl2/bundled", "sdl2/static-link", "sdl2-sys/bundled", "sdl2-sys/static-link"]

--- a/README.md
+++ b/README.md
@@ -6,6 +6,18 @@ The Orbital Client Library. Compatible with Redox and SDL2.
 [![crates.io](http://meritbadge.herokuapp.com/orbclient)](https://crates.io/crates/orbclient)
 [![docs.rs](https://docs.rs/orbclient/badge.svg)](https://docs.rs/orbclient)

+## Platform notes 
+
+### Web
+
+* Rust standard toolchain `rustup`, `rustc`, `cargo` ([install](https://www.rust-lang.org/tools/install))
+* Rust web assembly toolchain `wasm-pack` ([install](https://rustwasm.github.io/wasm-pack/installer/))
+* JavaScript package manager npm ([install](https://www.npmjs.com/get-npm))
+* Run simple example
+  * Navigate to `examples/simple` director
+  * Run `npm install`
+  * Run `npm run serve`
+
 ### Troubleshooting

 * Make sure that you work with the current ```nightly``` version of Rust

--- a/examples/simple/Cargo.toml
+++ b/examples/simple/Cargo.toml
+[package]
+name = "simple"
+version = "0.1.0"
+authors = ["Florian Blasius <flovanpt@posteo.de>"]
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[dependencies]
+wasm-bindgen = "0.2"
+orbclient = { path = "../.." }
+
+# The `console_error_panic_hook` crate provides better debugging of panics by
+# logging them with `console.error`. This is great for development, but requires
+# all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
+# code size when deploying.
+
+console_error_panic_hook = { version = "0.1.6" }
+
+# `wee_alloc` is a tiny allocator for wasm that is only ~1K in code size
+# compared to the default allocator's ~10K. It is slower than the default
+# allocator, however.
+#
+# Unfortunately, `wee_alloc` requires nightly Rust when targeting wasm for now.
+wee_alloc = { version = "0.4.5", optional = true }
+
+[dev-dependencies]
+wasm-bindgen-test = "0.3.8"
+
+[profile.release]
+# Tell `rustc` to optimize for small code size.
+opt-level = "s"
\ No newline at end of file
--- a/examples/simple/index.html
+++ b/examples/simple/index.html
+<html>
+  <head>
+    <meta content="text/html;charset=utf-8" http-equiv="Content-Type"/>
+  </head>
+  <body>
+  </body>
+</html>
\ No newline at end of file
--- a/examples/simple/index.js
+++ b/examples/simple/index.js
+import('./pkg')
+  .catch(console.error);
\ No newline at end of file
--- a/examples/simple/package-lock.json
+++ b/examples/simple/package-lock.json
--- a/examples/simple/package.json
+++ b/examples/simple/package.json
+{
+    "scripts": {
+        "build": "webpack",
+        "serve": "webpack-dev-server"
+    },
+    "devDependencies": {
+        "@wasm-tool/wasm-pack-plugin": "1.3.1",
+        "text-encoding": "^0.7.0",
+        "html-webpack-plugin": "^3.2.0",
+        "webpack": "4.43.0",
+        "webpack-cli": "3.3.11",
+        "webpack-dev-server": "3.11.0"
+    }
+}
--- a/examples/simple/src/lib.rs
+++ b/examples/simple/src/lib.rs
+extern crate console_error_panic_hook;
+extern crate orbclient;
+extern crate wasm_bindgen;
+
+use wasm_bindgen::prelude::*;
+
+use orbclient::{animation_loop, log, Color, EventOption, GraphicsPath, Mode, Renderer, Window};
+
+use std::panic;
+
+#[wasm_bindgen(start)]
+pub fn start() {
+    console_error_panic_hook::set_once();
+    let (width, height) = orbclient::get_display_size().unwrap();
+
+    let mut window = Window::new(
+        (width as i32) / 4,
+        (height as i32) / 4,
+        width / 2,
+        height / 2,
+        "TITLE",
+    )
+    .unwrap();
+
+    let (win_w, win_h) = (width / 2, height / 2);
+
+    // top left -> bottom rigth
+    window.linear_gradient(
+        0,
+        0,
+        win_w / 3,
+        win_h,
+        0,
+        0,
+        (win_w / 3) as i32,
+        (win_h / 2) as i32,
+        Color::rgb(128, 128, 128),
+        Color::rgb(255, 255, 255),
+    );
+    // horizontal gradient
+    window.linear_gradient(
+        (win_w / 3) as i32,
+        0,
+        win_w / 3,
+        win_h,
+        (win_w / 3) as i32,
+        0,
+        (2 * win_w / 3) as i32,
+        0,
+        Color::rgb(128, 255, 255),
+        Color::rgb(255, 255, 255),
+    );
+    // vertical gradient
+    window.linear_gradient(
+        (2 * win_w / 3) as i32,
+        0,
+        win_w / 3,
+        win_h,
+        (2 * win_w / 3) as i32,
+        0,
+        (2 * win_w / 3) as i32,
+        win_h as i32,
+        Color::rgb(0, 128, 0),
+        Color::rgb(255, 255, 255),
+    );
+    window.arc(100, 100, -25, 1 << 0 | 1 << 2, Color::rgb(0, 0, 255));
+    window.arc(100, 100, -25, 1 << 1 | 1 << 3, Color::rgb(0, 255, 255));
+    window.arc(100, 100, -25, 1 << 4 | 1 << 6, Color::rgb(255, 0, 255));
+    window.arc(100, 100, -25, 1 << 5 | 1 << 7, Color::rgb(255, 255, 0));
+    window.circle(100, 100, 25, Color::rgb(0, 0, 0));
+    window.circle(100, 101, -25, Color::rgb(0, 255, 0));
+    window.circle(220, 220, -100, Color::rgba(128, 128, 128, 80));
+    window.wu_circle(150, 220, 100, Color::rgba(255, 0, 0, 255));
+    window.line(0, 0, 200, 200, Color::rgb(255, 0, 0));
+    window.line(0, 200, 200, 0, Color::rgb(128, 255, 0));
+    // vertical and horizontal line test
+    window.line(100, 0, 100, 200, Color::rgb(0, 0, 255));
+    window.line(0, 100, 200, 100, Color::rgb(255, 255, 0));
+    window.wu_line(100, 220, 400, 250, Color::rgba(255, 0, 0, 255));
+    window.line(100, 230, 400, 260, Color::rgba(255, 0, 0, 255));
+
+    // path and bezier curve example draw a cloud
+    let mut cloud_path = GraphicsPath::new();
+    cloud_path.move_to(170, 80);
+    cloud_path.bezier_curve_to(130, 100, 130, 150, 230, 150);
+    cloud_path.bezier_curve_to(250, 180, 320, 180, 340, 150);
+    cloud_path.bezier_curve_to(420, 150, 420, 120, 390, 100);
+    cloud_path.bezier_curve_to(430, 40, 370, 30, 340, 50);
+    cloud_path.bezier_curve_to(320, 5, 250, 20, 250, 50);
+    cloud_path.bezier_curve_to(200, 5, 150, 20, 170, 80);
+    window.draw_path_stroke(cloud_path, Color::rgb(0, 0, 255));
+
+    // path and quadratic curve example draw a balloon
+    let mut balloon_path = GraphicsPath::new();
+    balloon_path.move_to(75, 25);
+    balloon_path.quadratic_curve_to(25, 25, 25, 62);
+    balloon_path.quadratic_curve_to(25, 100, 50, 100);
+    balloon_path.quadratic_curve_to(50, 120, 30, 125);
+    balloon_path.quadratic_curve_to(60, 120, 65, 100);
+    balloon_path.quadratic_curve_to(125, 100, 125, 62);
+    balloon_path.quadratic_curve_to(125, 25, 75, 25);
+    window.draw_path_stroke(balloon_path, Color::rgb(0, 0, 255));
+
+    window.char(200, 200, '═', Color::rgb(0, 0, 0));
+    window.char(208, 200, '═', Color::rgb(0, 0, 0));
+
+    // testing for non existent x,y position : does not panic but returns Color(0,0,0,0)
+    let _non_existent_pixel = window.getpixel(width as i32 + 10, height as i32 + 10);
+
+    // testing PartialEq for Color
+    if Color::rgb(11, 2, 3) == Color::rgba(1, 2, 3, 100) {
+        log("Testing colors: they are the same!")
+    } else {
+        log("Testing colors: they are NOT the same!")
+    }
+
+    //Draw a transparent rectangle over window content
+    // default mode is Blend
+    window.rect(250, 200, 80, 80, Color::rgba(100, 100, 100, 100));
+
+    //Draw an opaque rectangle replacing window content
+    window.mode().set(Mode::Overwrite); // set window drawing mode to Overwrite from now on
+    window.rect(300, 220, 80, 80, Color::rgb(100, 100, 100));
+
+    //Draw a hole in the window replacing alpha channel (Only in Orbital, not in SDL2)
+    window.rect(300, 100, 80, 80, Color::rgba(10, 10, 10, 1));
+
+    //Draw a transparent rectangle over window content
+    window.mode().set(Mode::Blend); //set mode to Blend fron now on
+    window.rect(200, 230, 80, 80, Color::rgba(100, 100, 100, 100));
+
+    //Draw a blured box over window content
+    window.box_blur(170, 100, 150, 150, 10);
+
+    //Draw a shadow around a box
+    window.box_shadow(170, 100, 150, 150, 0, 0, 20, Color::rgba(0, 0, 0, 255));
+
+    window.sync();
+
+    animation_loop(move || {
+        for event in window.events() {
+            match event.to_option() {
+                EventOption::Quit(_quit_event) => return false,
+                EventOption::Mouse(evt) => log(format!(
+                    "At position {:?} pixel color is : {:?}",
+                    (evt.x, evt.y),
+                    window.getpixel(evt.x, evt.y)
+                )
+                .as_str()),
+                event_option => log(format!("{:?}", event_option)),
+            }
+        }
+        true
+    });
+}
--- a/examples/simple/webpack.config.js
+++ b/examples/simple/webpack.config.js
+const path = require('path');
+const HtmlWebpackPlugin = require('html-webpack-plugin');
+const webpack = require('webpack');
+const WasmPackPlugin = require("@wasm-tool/wasm-pack-plugin");
+
+module.exports = {
+    entry: './index.js',
+    output: {
+        path: path.resolve(__dirname, 'dist'),
+        filename: 'index.js',
+    },
+    plugins: [
+        new HtmlWebpackPlugin({
+            template: 'index.html'
+        }),
+        new WasmPackPlugin({
+            crateDirectory: path.resolve(__dirname, ".")
+        }),
+        // Have this example work in Edge which doesn't ship `TextEncoder` or
+        // `TextDecoder` at this time.
+        new webpack.ProvidePlugin({
+          TextDecoder: ['text-encoding', 'TextDecoder'],
+          TextEncoder: ['text-encoding', 'TextEncoder']
+        })
+    ],
+    mode: 'development'
+};
\ No newline at end of file
--- a/src/color.rs
+++ b/src/color.rs
@@ -12,32 +12,51 @@ impl Color {
    /// Create a new color from RGB
    pub const fn rgb(r: u8, g: u8, b: u8) -> Self {
        Color {
+            #[cfg(not(target_arch = "wasm32"))]
            data: 0xFF000000 | ((r as u32) << 16) | ((g as u32) << 8) | (b as u32),
+            #[cfg(target_arch = "wasm32")]
+            data: 0xFF000000 | ((b as u32) << 16) | ((g as u32) << 8) | (r as u32),
        }
    }

    /// Set the alpha
    pub const fn rgba(r: u8, g: u8, b: u8, a: u8) -> Self {
        Color {
+            #[cfg(not(target_arch = "wasm32"))]
            data: ((a as u32) << 24) | ((r as u32) << 16) | ((g as u32) << 8) | (b as u32),
+            #[cfg(target_arch = "wasm32")]
+            data: ((a as u32) << 24) | ((b as u32) << 16) | ((g as u32) << 8) | (r as u32),
        }
    }

    /// Get the r value
+    #[cfg(not(target_arch = "wasm32"))]
    pub fn r(&self) -> u8 {
        ((self.data & 0x00FF0000) >> 16) as u8
    }

+    /// Get the r value
+    #[cfg(target_arch = "wasm32")]
+    pub fn r(&self) -> u8 {
+        (self.data & 0x000000FF) as u8
+    }
+
    /// Get the g value
    pub fn g(&self) -> u8 {
        ((self.data & 0x0000FF00) >> 8) as u8
    }

    /// Get the b value
+    #[cfg(not(target_arch = "wasm32"))]
    pub fn b(&self) -> u8 {
        (self.data & 0x000000FF) as u8
    }

+    #[cfg(target_arch = "wasm32")]
+    pub fn b(&self) -> u8 {
+        ((self.data & 0x00FF0000) >> 16) as u8
+    }
+
    /// Get the alpha value
    pub fn a(&self) -> u8 {
        ((self.data & 0xFF000000) >> 24) as u8
@@ -80,5 +99,4 @@ mod tests {
        assert_eq!(false, Color::rgb(1, 2, 3) == Color::rgba(11, 2, 3, 200));
        assert_eq!(true, Color::rgba(1, 2, 3, 200) == Color::rgba(1, 2, 3, 200));
    }
-
 }
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -17,6 +17,9 @@ pub use renderer::Renderer;
 #[cfg(not(feature = "no_std"))]
 pub use sys::{get_display_size, EventIter, Window};

+#[cfg(target_arch = "wasm32")]
+pub use sys::{animation_loop, log};
+
 #[cfg(not(feature = "no_std"))]
 mod blur;
 pub mod color;
@@ -41,10 +44,22 @@ pub enum Mode {
    Overwrite, //Replace
 }

-#[cfg(all(not(feature = "no_std"), target_os = "redox"))]
+#[cfg(all(
+    not(feature = "no_std"),
+    not(target_arch = "wasm32"),
+    target_os = "redox"
+))]
 #[path = "sys/orbital.rs"]
 mod sys;

-#[cfg(all(not(feature = "no_std"), not(target_os = "redox")))]
+#[cfg(all(
+    not(feature = "no_std"),
+    not(target_arch = "wasm32"),
+    not(target_os = "redox")
+))]
 #[path = "sys/sdl2.rs"]
 mod sys;
+
+#[cfg(target_arch = "wasm32")]
+#[path = "sys/web.rs"]
+mod sys;
--- a/src/sys/web.rs
+++ b/src/sys/web.rs