├── .changes ├── config.json └── readme.md ├── .gitattributes ├── .github ├── PULL_REQUEST_TEMPLATE.md └── workflows │ ├── ci.yml │ ├── covector-status.yml │ └── covector-version-or-publish.yml ├── .gitignore ├── Cargo.toml ├── LICENSE ├── README.md ├── glutin ├── CHANGELOG.md ├── Cargo.toml ├── LICENSE ├── README.md ├── build.rs └── src │ ├── lib.rs │ └── window.rs ├── glutin_examples ├── Cargo.toml ├── LICENSE ├── build.rs ├── examples │ ├── egl_device.rs │ └── window.rs └── src │ └── lib.rs └── rustfmt.toml /.changes/config.json: -------------------------------------------------------------------------------- 1 | { 2 | "gitSiteUrl": "https://github.com/tauri-apps/glutin/", 3 | "pkgManagers": { 4 | "rust": { 5 | "version": true, 6 | "getPublishedVersion": "cargo search ${ pkg.pkg } --limit 1 | sed -nE 's/^[^\"]*\"//; s/\".*//1p' -", 7 | "prepublish": [ 8 | "sudo apt-get update", 9 | "sudo apt-get install -y libgtk-3-dev", 10 | "cargo install cargo-audit --features=fix", 11 | { 12 | "command": "cargo generate-lockfile", 13 | "dryRunCommand": true, 14 | "runFromRoot": true, 15 | "pipe": true 16 | }, 17 | { 18 | "command": "echo '
\n

Cargo Audit

\n\n```'", 19 | "dryRunCommand": true, 20 | "pipe": true 21 | }, 22 | { 23 | "command": "cargo audit ${ process.env.CARGO_AUDIT_OPTIONS || '' }", 24 | "dryRunCommand": true, 25 | "runFromRoot": true, 26 | "pipe": true 27 | }, 28 | { 29 | "command": "echo '```\n\n
\n'", 30 | "dryRunCommand": true, 31 | "pipe": true 32 | } 33 | ], 34 | "publish": [ 35 | { 36 | "command": "cargo package --allow-dirty", 37 | "dryRunCommand": true 38 | }, 39 | { 40 | "command": "echo '
\n

Cargo Publish

\n\n```'", 41 | "dryRunCommand": true, 42 | "pipe": true 43 | }, 44 | { 45 | "command": "echo \"\\`\\`\\`\"", 46 | "dryRunCommand": true, 47 | "pipe": true 48 | }, 49 | { 50 | "command": "cargo publish --no-verify", 51 | "dryRunCommand": "cargo publish --no-verify --dry-run --allow-dirty", 52 | "pipe": true 53 | }, 54 | { 55 | "command": "echo '```\n\n
\n'", 56 | "dryRunCommand": true, 57 | "pipe": true 58 | } 59 | ], 60 | "postpublish": [ 61 | "git tag ${ pkg.pkg }-v${ pkgFile.versionMajor } -f", 62 | "git tag ${ pkg.pkg }-v${ pkgFile.versionMajor }.${ pkgFile.versionMinor } -f", 63 | "git push --tags -f" 64 | ], 65 | "assets": [ 66 | { 67 | "path": "${ pkg.path }/${ pkg.pkg }-${ pkgFile.version }.crate", 68 | "name": "${ pkg.pkg }-${ pkgFile.version }.crate" 69 | } 70 | ] 71 | } 72 | }, 73 | "packages": { 74 | "glutin_tao": { 75 | "path": "./glutin", 76 | "manager": "rust" 77 | } 78 | } 79 | } -------------------------------------------------------------------------------- /.changes/readme.md: -------------------------------------------------------------------------------- 1 | # Changes 2 | 3 | ##### via https://github.com/jbolda/covector 4 | 5 | As you create PRs and make changes that require a version bump, please add a new markdown file in this folder. You do not note the version _number_, but rather the type of bump that you expect: major, minor, or patch. The filename is not important, as long as it is a `.md`, but we recommend that it represents the overall change for organizational purposes. 6 | 7 | When you select the version bump required, you do _not_ need to consider dependencies. Only note the package with the actual change, and any packages that depend on that package will be bumped automatically in the process. 8 | 9 | Use the following format: 10 | 11 | ```md 12 | --- 13 | "package-a": patch 14 | "package-b": minor 15 | --- 16 | 17 | Change summary goes here 18 | 19 | ``` 20 | 21 | Summaries do not have a specific character limit, but are text only. These summaries are used within the (future implementation of) changelogs. They will give context to the change and also point back to the original PR if more details and context are needed. 22 | 23 | Changes will be designated as a `major`, `minor` or `patch` as further described in [semver](https://semver.org/). 24 | 25 | Given a version number MAJOR.MINOR.PATCH, increment the: 26 | 27 | - MAJOR version when you make incompatible API changes, 28 | - MINOR version when you add functionality in a backwards compatible manner, and 29 | - PATCH version when you make backwards compatible bug fixes. 30 | 31 | Additional labels for pre-release and build metadata are available as extensions to the MAJOR.MINOR.PATCH format, but will be discussed prior to usage (as extra steps will be necessary in consideration of merging and publishing). 32 | -------------------------------------------------------------------------------- /.gitattributes: -------------------------------------------------------------------------------- 1 | # Auto detect text files and perform LF normalization 2 | * text=auto 3 | 4 | # Custom for Visual Studio 5 | *.cs diff=csharp 6 | *.sln merge=union 7 | *.csproj merge=union 8 | *.vbproj merge=union 9 | *.fsproj merge=union 10 | *.dbproj merge=union 11 | 12 | # Standard to msysgit 13 | *.doc diff=astextplain 14 | *.DOC diff=astextplain 15 | *.docx diff=astextplain 16 | *.DOCX diff=astextplain 17 | *.dot diff=astextplain 18 | *.DOT diff=astextplain 19 | *.pdf diff=astextplain 20 | *.PDF diff=astextplain 21 | *.rtf diff=astextplain 22 | *.RTF diff=astextplain 23 | -------------------------------------------------------------------------------- /.github/PULL_REQUEST_TEMPLATE.md: -------------------------------------------------------------------------------- 1 | - [ ] Tested on all platforms changed 2 | - [ ] Added an entry to `CHANGELOG.md` if knowledge of this change could be valuable to users 3 | - [ ] Updated documentation to reflect any user-facing changes, including notes of platform-specific behavior 4 | - [ ] Created or updated an example program if it would help users understand this functionality 5 | -------------------------------------------------------------------------------- /.github/workflows/ci.yml: -------------------------------------------------------------------------------- 1 | name: CI 2 | 3 | on: 4 | pull_request: 5 | paths: 6 | - '**.rs' 7 | - '**.toml' 8 | - '.github/workflows/ci.yml' 9 | push: 10 | branches: [master] 11 | paths: 12 | - '**.rs' 13 | - '**.toml' 14 | - '.github/workflows/ci.yml' 15 | 16 | jobs: 17 | # check-formatting: 18 | # name: Check formatting 19 | # runs-on: ubuntu-latest 20 | # steps: 21 | # - uses: actions/checkout@v1 22 | # - uses: hecrj/setup-rust-action@v1 23 | # with: 24 | # rust-version: nightly 25 | # components: rustfmt 26 | # - name: Check Formatting 27 | # run: cargo +nightly fmt --all -- --check 28 | 29 | tests: 30 | name: Tests 31 | strategy: 32 | fail-fast: false 33 | matrix: 34 | rust_version: [1.65.0, stable, nightly] 35 | platform: 36 | - { target: x86_64-pc-windows-msvc, os: windows-latest, } 37 | - { target: i686-pc-windows-msvc, os: windows-latest, } 38 | - { target: i686-pc-windows-msvc, os: windows-latest, options: --no-default-features, features: wgl } 39 | - { target: i686-pc-windows-msvc, os: windows-latest, options: --no-default-features, features: egl } 40 | - { target: x86_64-pc-windows-gnu, os: windows-latest, host: -x86_64-pc-windows-gnu } 41 | - { target: i686-pc-windows-gnu, os: windows-latest, host: -i686-pc-windows-gnu } 42 | # - { target: i686-unknown-linux-gnu, os: ubuntu-latest, } 43 | - { target: x86_64-unknown-linux-gnu, os: ubuntu-latest, } 44 | # - { target: x86_64-unknown-linux-gnu, os: ubuntu-latest, options: --no-default-features, features: "egl,wayland,x11" } 45 | # - { target: x86_64-unknown-linux-gnu, os: ubuntu-latest, options: --no-default-features, features: "egl,wayland" } 46 | - { target: x86_64-unknown-linux-gnu, os: ubuntu-latest, options: --no-default-features, features: "egl,x11" } 47 | # - { target: x86_64-unknown-linux-gnu, os: ubuntu-latest, options: --no-default-features, features: glx } 48 | # - { target: aarch64-linux-android, os: ubuntu-latest, cmd: 'apk --' } 49 | - { target: x86_64-apple-darwin, os: macos-latest, } 50 | # We don't support ios for now. 51 | # - { target: x86_64-apple-ios, os: macos-latest, } 52 | # - { target: aarch64-apple-ios, os: macos-latest, } 53 | 54 | env: 55 | RUST_BACKTRACE: 1 56 | CARGO_INCREMENTAL: 0 57 | RUSTFLAGS: "-C debuginfo=0" 58 | OPTIONS: ${{ matrix.platform.options }} 59 | CMD: ${{ matrix.platform.cmd }} 60 | FEATURES: ${{ format(',{0}', matrix.platform.features ) }} 61 | RUSTDOCFLAGS: -Dwarnings 62 | 63 | runs-on: ${{ matrix.platform.os }} 64 | steps: 65 | - uses: actions/checkout@v1 66 | # Used to cache cargo-web 67 | - name: Cache cargo folder 68 | uses: actions/cache@v1 69 | with: 70 | path: ~/.cargo 71 | key: ${{ matrix.platform.target }}-cargo-${{ matrix.rust_version }} 72 | 73 | - uses: hecrj/setup-rust-action@v1 74 | with: 75 | rust-version: ${{ matrix.rust_version }}${{ matrix.platform.host }} 76 | targets: ${{ matrix.platform.target }} 77 | components: clippy 78 | 79 | # We need those for examples. 80 | - name: Install GCC Multilib 81 | if: (matrix.platform.os == 'ubuntu-latest') && contains(matrix.platform.target, 'i686') 82 | run: sudo apt-get update && sudo apt-get install gcc-multilib 83 | 84 | - name: Install Gtk (ubuntu only) 85 | if: matrix.platform.os == 'ubuntu-latest' 86 | run: | 87 | sudo apt-get update 88 | sudo apt-get install -y libgtk-3-dev 89 | 90 | - name: Install cargo-apk 91 | if: contains(matrix.platform.target, 'android') 92 | run: cargo +stable install cargo-apk 93 | 94 | - name: Build tests 95 | shell: bash 96 | run: cd glutin && cargo $CMD test -p glutin --no-run --verbose --target ${{ matrix.platform.target }} $OPTIONS --features $FEATURES 97 | - name: Run tests 98 | shell: bash 99 | if: ( 100 | !contains(matrix.platform.target, 'android') && 101 | !contains(matrix.platform.target, 'ios') && 102 | !contains(matrix.platform.target, 'wasm32')) 103 | run: cargo test --verbose --target ${{ matrix.platform.target }} $OPTIONS --features $FEATURES 104 | 105 | - name: Check documentation 106 | shell: bash 107 | run: cd glutin && cargo doc --no-deps --target ${{ matrix.platform.target }} $OPTIONS --features $FEATURES --document-private-items 108 | 109 | - name: Lint with clippy 110 | shell: bash 111 | if: (matrix.rust_version == '1.65.0') && !contains(matrix.platform.options, '--no-default-features') 112 | run: cargo clippy --workspace --all-targets --target ${{ matrix.platform.target }} $OPTIONS --features $FEATURES -- -Dwarnings 113 | 114 | -------------------------------------------------------------------------------- /.github/workflows/covector-status.yml: -------------------------------------------------------------------------------- 1 | name: covector status 2 | on: [pull_request] 3 | 4 | jobs: 5 | covector: 6 | runs-on: ubuntu-latest 7 | 8 | steps: 9 | - uses: actions/checkout@v2 10 | with: 11 | fetch-depth: 0 # required for use of git history 12 | - name: covector status 13 | uses: jbolda/covector/packages/action@covector-v0.7 14 | id: covector 15 | with: 16 | command: 'status' 17 | -------------------------------------------------------------------------------- /.github/workflows/covector-version-or-publish.yml: -------------------------------------------------------------------------------- 1 | name: version or publish 2 | 3 | on: 4 | push: 5 | branches: 6 | - '0.31' 7 | 8 | jobs: 9 | version-or-publish: 10 | runs-on: ubuntu-latest 11 | timeout-minutes: 65 12 | outputs: 13 | change: ${{ steps.covector.outputs.change }} 14 | commandRan: ${{ steps.covector.outputs.commandRan }} 15 | successfulPublish: ${{ steps.covector.outputs.successfulPublish }} 16 | 17 | steps: 18 | - uses: actions/checkout@v2 19 | with: 20 | fetch-depth: 0 21 | - name: cargo login 22 | run: cargo login ${{ secrets.ORG_CRATES_IO_TOKEN }} 23 | - name: git config 24 | run: | 25 | git config --global user.name "${{ github.event.pusher.name }}" 26 | git config --global user.email "${{ github.event.pusher.email }}" 27 | - name: covector version or publish (publish when no change files present) 28 | uses: jbolda/covector/packages/action@covector-v0 29 | id: covector 30 | env: 31 | CARGO_AUDIT_OPTIONS: ${{ secrets.CARGO_AUDIT_OPTIONS }} 32 | with: 33 | token: ${{ secrets.GITHUB_TOKEN }} 34 | command: "version-or-publish" 35 | createRelease: true 36 | - name: Create Pull Request With Versions Bumped 37 | id: cpr 38 | uses: tauri-apps/create-pull-request@v3 39 | if: steps.covector.outputs.commandRan == 'version' 40 | with: 41 | token: ${{ secrets.GITHUB_TOKEN }} 42 | title: "Publish New Versions" 43 | commit-message: "publish new versions" 44 | labels: "version updates" 45 | branch: "release" 46 | body: ${{ steps.covector.outputs.change }} 47 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | Cargo.lock 2 | target/ 3 | .DS_Store 4 | *~ 5 | #*# 6 | -------------------------------------------------------------------------------- /Cargo.toml: -------------------------------------------------------------------------------- 1 | [workspace] 2 | members = [ 3 | "glutin", 4 | "glutin_examples", 5 | ] 6 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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While redistributing 166 | the Work or Derivative Works thereof, You may choose to offer, 167 | and charge a fee for, acceptance of support, warranty, indemnity, 168 | or other liability obligations and/or rights consistent with this 169 | License. However, in accepting such obligations, You may act only 170 | on Your own behalf and on Your sole responsibility, not on behalf 171 | of any other Contributor, and only if You agree to indemnify, 172 | defend, and hold each Contributor harmless for any liability 173 | incurred by, or claims asserted against, such Contributor by reason 174 | of your accepting any such warranty or additional liability. 175 | 176 | END OF TERMS AND CONDITIONS 177 | 178 | APPENDIX: How to apply the Apache License to your work. 179 | 180 | To apply the Apache License to your work, attach the following 181 | boilerplate notice, with the fields enclosed by brackets "{}" 182 | replaced with your own identifying information. (Don't include 183 | the brackets!) The text should be enclosed in the appropriate 184 | comment syntax for the file format. We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright 2022 Kirill Chibisov 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # glutin_tao 2 | 3 | Glutin is a low-level library for OpenGL context creation, glutin_tao uses tao instead of winit. 4 | 5 | 6 | [![](https://img.shields.io/crates/v/glutin.svg)](https://crates.io/crates/glutin) 7 | [![Docs.rs](https://docs.rs/glutin/badge.svg)](https://docs.rs/glutin) 8 | 9 | ```toml 10 | [dependencies] 11 | glutin = "0.30.8" 12 | ``` 13 | 14 | ## [Documentation](https://docs.rs/glutin_tao) 15 | 16 | ### Try it! 17 | 18 | ```bash 19 | git clone https://github.com/tauri-apps/glutin 20 | cd glutin 21 | cargo run --example window 22 | ``` 23 | 24 | ### Usage 25 | 26 | Glutin is an OpenGL context creation library, and doesn't directly provide 27 | OpenGL bindings for you. 28 | 29 | For examples, please look [here](https://github.com/rust-windowing/glutin/tree/master/glutin_examples). 30 | 31 | Note that glutin aims at being a low-level brick in your rendering 32 | infrastructure. You are encouraged to write another layer of abstraction 33 | between glutin and your application. 34 | 35 | The minimum Rust version target by glutin is `1.65.0`. 36 | 37 | ## Platform-specific notes 38 | 39 | ### Wayland 40 | 41 | Wayland is currently unsupported. -------------------------------------------------------------------------------- /glutin/CHANGELOG.md: -------------------------------------------------------------------------------- 1 | # Unreleased 2 | 3 | ## \[0.33.0] 4 | 5 | - [`6027820`](https://github.com/tauri-apps/glutin/commit/6027820de63f3615ebf8c024564583cad25dbca6) Update glutin_tao version to 0.32.0 to bump to 0.33.0 properly. 6 | 7 | ## \[0.4.0] 8 | 9 | - [`0eeba77`](https://github.com/tauri-apps/glutin/commit/0eeba77ad727e3d4a40291c670b023857654be31) Update glutin to 0.30.8. 10 | 11 | 12 | 13 | - **Breaking:** Fixed a typo in a type name (`ApiPrefence` -> `ApiPreference`). 14 | 15 | # Version 0.3.0 16 | 17 | - **Breaking:** Update *winit* to `0.28`. See [winit's CHANGELOG](https://github.com/rust-windowing/winit/releases/tag/v0.28.0) for more info. 18 | 19 | # Version 0.2.2 20 | 21 | - Add traits `GlWindow` with helper methods for building and resizing surfaces using a winit `Window`. 22 | 23 | # Version 0.2.1 24 | 25 | - Fix WGL window initialization. 26 | 27 | # Version 0.2.0 28 | 29 | - Fix API typo. 30 | 31 | # Version 0.1.0 32 | 33 | - Implement *glutin-winit* helpers. 34 | -------------------------------------------------------------------------------- /glutin/Cargo.toml: -------------------------------------------------------------------------------- 1 | [package] 2 | name = "glutin_tao" 3 | version = "0.33.0" 4 | authors = [ "Kirill Chibisov " ] 5 | description = "Glutin bootstrapping helpers with tao" 6 | keywords = [ "windowing", "opengl", "tao" ] 7 | license = "MIT" 8 | readme = "README.md" 9 | repository = "https://github.com/rust-windowing/glutin" 10 | edition = "2021" 11 | 12 | [features] 13 | default = [ "egl", "x11", "wayland", "wgl" ] 14 | egl = [ "glutin/egl" ] 15 | wgl = [ "glutin/wgl" ] 16 | x11 = [ "glutin/x11" ] 17 | wayland = [ "glutin/wayland" ] 18 | 19 | [dependencies] 20 | winit = { package = "tao", version = "0.19.0", default-features = false } 21 | glutin = { version = "0.30.1", default-features = false } 22 | raw-window-handle = "0.5.0" 23 | 24 | [build-dependencies] 25 | cfg_aliases = "0.1.1" 26 | -------------------------------------------------------------------------------- /glutin/LICENSE: -------------------------------------------------------------------------------- 1 | Copyright © 2022 Kirill Chibisov 2 | 3 | Permission is hereby granted, free of charge, to any person obtaining a copy 4 | of this software and associated documentation files (the “Software”), to deal 5 | in the Software without restriction, including without limitation the rights to 6 | use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 7 | of the Software, and to permit persons to whom the Software is furnished to do 8 | so, subject to the following conditions: 9 | 10 | The above copyright notice and this permission notice shall be included in all 11 | copies or substantial portions of the Software. 12 | 13 | THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 16 | THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 18 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 19 | SOFTWARE. 20 | -------------------------------------------------------------------------------- /glutin/README.md: -------------------------------------------------------------------------------- 1 | # glutin-winit 2 | 3 | The crate provides cross-platform glutin `Display` bootstrapping with winit. 4 | 5 | This crate is also a reference on how to do the bootstrapping of glutin when 6 | used with a cross-platform windowing library. 7 | -------------------------------------------------------------------------------- /glutin/build.rs: -------------------------------------------------------------------------------- 1 | // XXX keep in sync with glutin's build.rs. 2 | 3 | use cfg_aliases::cfg_aliases; 4 | 5 | fn main() { 6 | // Setup alias to reduce `cfg` boilerplate. 7 | cfg_aliases! { 8 | // Systems. 9 | android_platform: { target_os = "android" }, 10 | wasm_platform: { target_family = "wasm" }, 11 | macos_platform: { target_os = "macos" }, 12 | ios_platform: { target_os = "ios" }, 13 | apple: { any(ios_platform, macos_platform) }, 14 | free_unix: { all(unix, not(apple), not(android_platform)) }, 15 | 16 | // Native displays. 17 | x11_platform: { all(feature = "x11", free_unix, not(wasm_platform)) }, 18 | wayland_platform: { all(feature = "wayland", free_unix, not(wasm_platform)) }, 19 | 20 | // Backends. 21 | egl_backend: { all(feature = "egl", any(windows, unix), not(apple), not(wasm_platform)) }, 22 | glx_backend: { all(feature = "glx", x11_platform, not(wasm_platform)) }, 23 | wgl_backend: { all(feature = "wgl", windows, not(wasm_platform)) }, 24 | cgl_backend: { all(macos_platform, not(wasm_platform)) }, 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /glutin/src/lib.rs: -------------------------------------------------------------------------------- 1 | //! This library provides helpers for cross-platform [`glutin`] bootstrapping 2 | //! with [`winit`]. 3 | 4 | #![deny(rust_2018_idioms)] 5 | #![deny(rustdoc::broken_intra_doc_links)] 6 | #![deny(clippy::all)] 7 | #![deny(missing_debug_implementations)] 8 | #![deny(missing_docs)] 9 | #![cfg_attr(feature = "cargo-clippy", deny(warnings))] 10 | 11 | mod window; 12 | 13 | pub use window::GlWindow; 14 | 15 | use std::error::Error; 16 | 17 | use glutin::config::{Config, ConfigTemplateBuilder}; 18 | use glutin::display::{Display, DisplayApiPreference}; 19 | // #[cfg(x11_platform)] 20 | // use glutin::platform::x11::X11GlConfigExt; 21 | use glutin::prelude::*; 22 | 23 | use raw_window_handle::{HasRawDisplayHandle, RawWindowHandle}; 24 | 25 | #[cfg(wgl_backend)] 26 | use raw_window_handle::HasRawWindowHandle; 27 | 28 | use winit::error::OsError; 29 | use winit::event_loop::EventLoopWindowTarget; 30 | use winit::window::{Window, WindowBuilder}; 31 | 32 | // #[cfg(glx_backend)] 33 | // use winit::platform::x11::register_xlib_error_hook; 34 | // #[cfg(x11_platform)] 35 | // use winit::platform::x11::WindowBuilderExtX11; 36 | 37 | #[cfg(all(not(egl_backend), not(glx_backend), not(wgl_backend), not(cgl_backend)))] 38 | compile_error!("Please select at least one api backend"); 39 | 40 | /// The helper to perform [`Display`] creation and OpenGL platform 41 | /// bootstrapping with the help of [`winit`] with little to no platform specific 42 | /// code. 43 | /// 44 | /// This is only required for the initial setup. If you want to create 45 | /// additional windows just use the [`finalize_window`] function and the 46 | /// configuration you've used either for the original window or picked with the 47 | /// existing [`Display`]. 48 | /// 49 | /// [`winit`]: winit 50 | /// [`Display`]: glutin::display::Display 51 | #[derive(Default, Debug, Clone)] 52 | pub struct DisplayBuilder { 53 | preference: ApiPreference, 54 | window_builder: Option, 55 | } 56 | 57 | impl DisplayBuilder { 58 | /// Create new display builder. 59 | pub fn new() -> Self { 60 | Default::default() 61 | } 62 | 63 | /// The preference in picking the configuration. 64 | pub fn with_preference(mut self, preference: ApiPreference) -> Self { 65 | self.preference = preference; 66 | self 67 | } 68 | 69 | /// The window builder to use when building a window. 70 | /// 71 | /// By default no window is created. 72 | pub fn with_window_builder(mut self, window_builder: Option) -> Self { 73 | self.window_builder = window_builder; 74 | self 75 | } 76 | 77 | /// Initialize the OpenGL platform and create a compatible window to use 78 | /// with it when the [`WindowBuilder`] was passed with 79 | /// [`Self::with_window_builder`]. It's optional, since on some 80 | /// platforms like `Android` it is not available early on, so you want to 81 | /// find configuration and later use it with the [`finalize_window`]. 82 | /// But if you don't care about such platform you can always pass 83 | /// [`WindowBuilder`]. 84 | /// 85 | /// # Api-specific 86 | /// 87 | /// **WGL:** - [`WindowBuilder`] **must** be passed in 88 | /// [`Self::with_window_builder`] if modern OpenGL(ES) is desired, 89 | /// otherwise only builtin functions like `glClear` will be available. 90 | pub fn build( 91 | mut self, 92 | window_target: &EventLoopWindowTarget, 93 | template_builder: ConfigTemplateBuilder, 94 | config_picker: Picker, 95 | ) -> Result<(Option, Config), Box> 96 | where 97 | Picker: FnOnce(Box + '_>) -> Config, 98 | { 99 | // XXX with WGL backend window should be created first. 100 | #[cfg(wgl_backend)] 101 | let window = if let Some(wb) = self.window_builder.take() { 102 | Some(wb.build(window_target)?) 103 | } else { 104 | None 105 | }; 106 | 107 | #[cfg(wgl_backend)] 108 | let raw_window_handle = window.as_ref().map(|window| window.raw_window_handle()); 109 | #[cfg(not(wgl_backend))] 110 | let raw_window_handle = None; 111 | 112 | let gl_display = create_display(window_target, self.preference, raw_window_handle)?; 113 | 114 | // XXX the native window must be passed to config picker when WGL is used 115 | // otherwise very limited OpenGL features will be supported. 116 | #[cfg(wgl_backend)] 117 | let template_builder = if let Some(raw_window_handle) = raw_window_handle { 118 | template_builder.compatible_with_native_window(raw_window_handle) 119 | } else { 120 | template_builder 121 | }; 122 | 123 | let template = template_builder.build(); 124 | 125 | let gl_config = unsafe { 126 | let configs = gl_display.find_configs(template)?; 127 | config_picker(configs) 128 | }; 129 | 130 | #[cfg(not(wgl_backend))] 131 | let window = if let Some(wb) = self.window_builder.take() { 132 | Some(finalize_window(window_target, wb, &gl_config)?) 133 | } else { 134 | None 135 | }; 136 | 137 | Ok((window, gl_config)) 138 | } 139 | } 140 | 141 | fn create_display( 142 | window_target: &EventLoopWindowTarget, 143 | _api_preference: ApiPreference, 144 | _raw_window_handle: Option, 145 | ) -> Result> { 146 | #[cfg(egl_backend)] 147 | let _preference = DisplayApiPreference::Egl; 148 | 149 | // #[cfg(glx_backend)] 150 | // let _preference = DisplayApiPreference::Glx(Box::new(register_xlib_error_hook)); 151 | 152 | #[cfg(cgl_backend)] 153 | let _preference = DisplayApiPreference::Cgl; 154 | 155 | #[cfg(wgl_backend)] 156 | let _preference = DisplayApiPreference::Wgl(_raw_window_handle); 157 | 158 | // #[cfg(all(egl_backend, glx_backend))] 159 | // let _preference = match _api_preference { 160 | // ApiPreference::PreferEgl => { 161 | // DisplayApiPreference::EglThenGlx(Box::new(register_xlib_error_hook)) 162 | // }, 163 | // ApiPreference::FallbackEgl => { 164 | // DisplayApiPreference::GlxThenEgl(Box::new(register_xlib_error_hook)) 165 | // }, 166 | // }; 167 | 168 | #[cfg(all(wgl_backend, egl_backend))] 169 | let _preference = match _api_preference { 170 | ApiPreference::PreferEgl => DisplayApiPreference::EglThenWgl(_raw_window_handle), 171 | ApiPreference::FallbackEgl => DisplayApiPreference::WglThenEgl(_raw_window_handle), 172 | }; 173 | 174 | unsafe { Ok(Display::new(window_target.raw_display_handle(), _preference)?) } 175 | } 176 | 177 | /// Finalize [`Window`] creation by applying the options from the [`Config`], be 178 | /// aware that it could remove incompatible options from the window builder like 179 | /// `transparency`, when the provided config doesn't support it. 180 | /// 181 | /// [`Window`]: winit::window::Window 182 | /// [`Config`]: glutin::config::Config 183 | pub fn finalize_window( 184 | window_target: &EventLoopWindowTarget, 185 | mut builder: WindowBuilder, 186 | gl_config: &Config, 187 | ) -> Result { 188 | // Disable transparency if the end config doesn't support it. 189 | if gl_config.supports_transparency() == Some(false) { 190 | builder = builder.with_transparent(false); 191 | } 192 | 193 | // #[cfg(x11_platform)] 194 | // let builder = if let Some(x11_visual) = gl_config.x11_visual() { 195 | // builder.with_x11_visual(x11_visual.into_raw()) 196 | // } else { 197 | // builder 198 | // }; 199 | 200 | builder.build(window_target) 201 | } 202 | 203 | /// Simplified version of the [`DisplayApiPreference`] which is used to simplify 204 | /// cross platform window creation. 205 | /// 206 | /// To learn about platform differences the [`DisplayApiPreference`] variants. 207 | /// 208 | /// [`DisplayApiPreference`]: glutin::display::DisplayApiPreference 209 | #[derive(Debug, Clone, Copy, PartialEq, Eq, Default)] 210 | pub enum ApiPreference { 211 | /// Prefer `EGL` over system provider like `GLX` and `WGL`. 212 | PreferEgl, 213 | 214 | /// Fallback to `EGL` when failed to create the system profile. 215 | /// 216 | /// This behavior is used by default. However consider using 217 | /// [`Self::PreferEgl`] if you don't care about missing EGL features. 218 | #[default] 219 | FallbackEgl, 220 | } 221 | -------------------------------------------------------------------------------- /glutin/src/window.rs: -------------------------------------------------------------------------------- 1 | use glutin::context::PossiblyCurrentContext; 2 | use glutin::surface::{ 3 | GlSurface, ResizeableSurface, Surface, SurfaceAttributes, SurfaceAttributesBuilder, 4 | SurfaceTypeTrait, WindowSurface, 5 | }; 6 | use raw_window_handle::HasRawWindowHandle; 7 | use std::num::NonZeroU32; 8 | use winit::window::Window; 9 | 10 | /// [`Window`] extensions for working with [`glutin`] surfaces. 11 | pub trait GlWindow { 12 | /// Build the surface attributes suitable to create a window surface. 13 | /// 14 | /// # Panics 15 | /// Panics if either window inner dimension is zero. 16 | /// 17 | /// # Example 18 | /// ```no_run 19 | /// use glutin_tao::GlWindow; 20 | /// # let winit_window: winit::window::Window = unimplemented!(); 21 | /// 22 | /// let attrs = winit_window.build_surface_attributes(<_>::default()); 23 | /// ``` 24 | fn build_surface_attributes( 25 | &self, 26 | builder: SurfaceAttributesBuilder, 27 | ) -> SurfaceAttributes; 28 | 29 | /// Resize the surface to the window inner size. 30 | /// 31 | /// No-op if either window size is zero. 32 | /// 33 | /// # Example 34 | /// ```no_run 35 | /// use glutin_tao::GlWindow; 36 | /// # use glutin::surface::{Surface, WindowSurface}; 37 | /// # let winit_window: winit::window::Window = unimplemented!(); 38 | /// # let (gl_surface, gl_context): (Surface, _) = unimplemented!(); 39 | /// 40 | /// winit_window.resize_surface(&gl_surface, &gl_context); 41 | /// ``` 42 | fn resize_surface( 43 | &self, 44 | surface: &Surface, 45 | context: &PossiblyCurrentContext, 46 | ); 47 | } 48 | 49 | impl GlWindow for Window { 50 | fn build_surface_attributes( 51 | &self, 52 | builder: SurfaceAttributesBuilder, 53 | ) -> SurfaceAttributes { 54 | let (w, h) = self.inner_size().non_zero().expect("invalid zero inner size"); 55 | builder.build(self.raw_window_handle(), w, h) 56 | } 57 | 58 | fn resize_surface( 59 | &self, 60 | surface: &Surface, 61 | context: &PossiblyCurrentContext, 62 | ) { 63 | if let Some((w, h)) = self.inner_size().non_zero() { 64 | surface.resize(context, w, h) 65 | } 66 | } 67 | } 68 | 69 | /// [`winit::dpi::PhysicalSize`] non-zero extensions. 70 | trait NonZeroU32PhysicalSize { 71 | /// Converts to non-zero `(width, height)`. 72 | fn non_zero(self) -> Option<(NonZeroU32, NonZeroU32)>; 73 | } 74 | impl NonZeroU32PhysicalSize for winit::dpi::PhysicalSize { 75 | fn non_zero(self) -> Option<(NonZeroU32, NonZeroU32)> { 76 | let w = NonZeroU32::new(self.width)?; 77 | let h = NonZeroU32::new(self.height)?; 78 | Some((w, h)) 79 | } 80 | } 81 | -------------------------------------------------------------------------------- /glutin_examples/Cargo.toml: -------------------------------------------------------------------------------- 1 | [package] 2 | name = "glutin_examples" 3 | version = "0.1.3" 4 | authors = ["Kirill Chibisov "] 5 | description = "Examples for glutin" 6 | repository = "https://github.com/rust-windowing/glutin" 7 | license = "Apache-2.0" 8 | readme = "../README.md" 9 | rust-version = "1.65.0" 10 | edition = "2021" 11 | publish = false 12 | 13 | [features] 14 | default = ["egl", "x11", "wayland", "wgl"] 15 | egl = ["glutin_tao/egl", "png"] 16 | wgl = ["glutin_tao/wgl"] 17 | x11 = ["glutin_tao/x11"] 18 | wayland = ["glutin_tao/wayland"] 19 | 20 | [dependencies] 21 | glutin = { version = "0.30.8", default-features = false } 22 | winit = { package = "tao", version = "0.19.0", default-features = false } 23 | glutin_tao = { path = "../glutin", default-features = false } 24 | raw-window-handle = "0.5.0" 25 | png = { version = "0.17.6", optional = true } 26 | 27 | [build-dependencies] 28 | gl_generator = "0.14" 29 | cfg_aliases = "0.1.1" 30 | 31 | [[example]] 32 | name = "egl_device" 33 | required-features = ["egl"] 34 | -------------------------------------------------------------------------------- /glutin_examples/LICENSE: -------------------------------------------------------------------------------- 1 | ../LICENSE -------------------------------------------------------------------------------- /glutin_examples/build.rs: -------------------------------------------------------------------------------- 1 | use std::env; 2 | use std::fs::File; 3 | use std::path::PathBuf; 4 | 5 | use cfg_aliases::cfg_aliases; 6 | use gl_generator::{Api, Fallbacks, Profile, Registry, StructGenerator}; 7 | 8 | fn main() { 9 | // XXX this is taken from glutin/build.rs. 10 | 11 | // Setup alias to reduce `cfg` boilerplate. 12 | cfg_aliases! { 13 | // Systems. 14 | android_platform: { target_os = "android" }, 15 | wasm_platform: { target_family = "wasm" }, 16 | macos_platform: { target_os = "macos" }, 17 | ios_platform: { target_os = "ios" }, 18 | apple: { any(ios_platform, macos_platform) }, 19 | free_unix: { all(unix, not(apple), not(android_platform)) }, 20 | 21 | // Native displays. 22 | x11_platform: { all(feature = "x11", free_unix, not(wasm_platform)) }, 23 | wayland_platform: { all(feature = "wayland", free_unix, not(wasm_platform)) }, 24 | 25 | // Backends. 26 | egl_backend: { all(feature = "egl", any(windows, unix), not(apple), not(wasm_platform)) }, 27 | glx_backend: { all(feature = "glx", x11_platform, not(wasm_platform)) }, 28 | wgl_backend: { all(feature = "wgl", windows, not(wasm_platform)) }, 29 | cgl_backend: { all(macos_platform, not(wasm_platform)) }, 30 | } 31 | 32 | let dest = PathBuf::from(&env::var("OUT_DIR").unwrap()); 33 | 34 | println!("cargo:rerun-if-changed=build.rs"); 35 | 36 | let mut file = File::create(dest.join("gl_bindings.rs")).unwrap(); 37 | Registry::new(Api::Gles2, (3, 0), Profile::Core, Fallbacks::All, []) 38 | .write_bindings(StructGenerator, &mut file) 39 | .unwrap(); 40 | } 41 | -------------------------------------------------------------------------------- /glutin_examples/examples/egl_device.rs: -------------------------------------------------------------------------------- 1 | fn main() { 2 | #[cfg(egl_backend)] 3 | example::run(); 4 | } 5 | 6 | #[cfg(egl_backend)] 7 | mod example { 8 | use std::fs::OpenOptions; 9 | use std::path::Path; 10 | 11 | use glutin::api::egl::device::Device; 12 | use glutin::api::egl::display::Display; 13 | use glutin::config::{ConfigSurfaceTypes, ConfigTemplate, ConfigTemplateBuilder}; 14 | use glutin::context::{ContextApi, ContextAttributesBuilder}; 15 | use glutin::prelude::*; 16 | use glutin_examples::{gl, Renderer}; 17 | 18 | const IMG_PATH: &str = concat!(env!("OUT_DIR"), "/egl_device.png"); 19 | 20 | pub fn run() { 21 | let devices = Device::query_devices().expect("Failed to query devices").collect::>(); 22 | 23 | for (index, device) in devices.iter().enumerate() { 24 | println!( 25 | "Device {}: Name: {} Vendor: {}", 26 | index, 27 | device.name().unwrap_or("UNKNOWN"), 28 | device.vendor().unwrap_or("UNKNOWN") 29 | ); 30 | } 31 | 32 | let device = devices.first().expect("No available devices"); 33 | 34 | // Create a display using the device. 35 | let display = 36 | unsafe { Display::with_device(device, None) }.expect("Failed to create display"); 37 | 38 | let template = config_template(); 39 | let config = unsafe { display.find_configs(template) } 40 | .unwrap() 41 | .reduce( 42 | |config, acc| { 43 | if config.num_samples() > acc.num_samples() { 44 | config 45 | } else { 46 | acc 47 | } 48 | }, 49 | ) 50 | .expect("No available configs"); 51 | 52 | println!("Picked a config with {} samples", config.num_samples()); 53 | 54 | // Context creation. 55 | // 56 | // In particular, since we are doing offscreen rendering we have no raw window 57 | // handle to provide. 58 | let context_attributes = ContextAttributesBuilder::new().build(None); 59 | 60 | // Since glutin by default tries to create OpenGL core context, which may not be 61 | // present we should try gles. 62 | let fallback_context_attributes = 63 | ContextAttributesBuilder::new().with_context_api(ContextApi::Gles(None)).build(None); 64 | 65 | let not_current = unsafe { 66 | display.create_context(&config, &context_attributes).unwrap_or_else(|_| { 67 | display 68 | .create_context(&config, &fallback_context_attributes) 69 | .expect("failed to create context") 70 | }) 71 | }; 72 | 73 | // Make the context current for rendering 74 | let _context = not_current.make_current_surfaceless().unwrap(); 75 | let renderer = Renderer::new(&display); 76 | 77 | // Create a framebuffer for offscreen rendering since we do not have a window. 78 | let mut framebuffer = 0; 79 | let mut renderbuffer = 0; 80 | unsafe { 81 | renderer.GenFramebuffers(1, &mut framebuffer); 82 | renderer.GenRenderbuffers(1, &mut renderbuffer); 83 | renderer.BindFramebuffer(gl::FRAMEBUFFER, framebuffer); 84 | renderer.BindRenderbuffer(gl::RENDERBUFFER, renderbuffer); 85 | renderer.RenderbufferStorage(gl::RENDERBUFFER, gl::RGBA, 1280, 720); 86 | renderer.FramebufferRenderbuffer( 87 | gl::FRAMEBUFFER, 88 | gl::COLOR_ATTACHMENT0, 89 | gl::RENDERBUFFER, 90 | renderbuffer, 91 | ); 92 | } 93 | 94 | renderer.resize(1280, 720); 95 | renderer.draw(); 96 | 97 | let mut buffer = Vec::::with_capacity(1280 * 720 * 4); 98 | unsafe { 99 | // Wait for the previous commands to finish before reading from the framebuffer. 100 | renderer.Finish(); 101 | // Download the framebuffer contents to the buffer. 102 | renderer.ReadPixels( 103 | 0, 104 | 0, 105 | 1280, 106 | 720, 107 | gl::RGBA, 108 | gl::UNSIGNED_BYTE, 109 | buffer.as_mut_ptr() as *mut _, 110 | ); 111 | buffer.set_len(1280 * 720 * 4); 112 | } 113 | 114 | let path = Path::new(IMG_PATH); 115 | let file = OpenOptions::new().write(true).create(true).open(path).unwrap(); 116 | 117 | let mut encoder = png::Encoder::new(file, 1280, 720); 118 | encoder.set_depth(png::BitDepth::Eight); 119 | encoder.set_color(png::ColorType::Rgba); 120 | let mut png_writer = encoder.write_header().unwrap(); 121 | 122 | png_writer.write_image_data(&buffer[..]).unwrap(); 123 | png_writer.finish().unwrap(); 124 | println!("Output rendered to: {}", path.display()); 125 | 126 | unsafe { 127 | // Unbind the framebuffer and renderbuffer before deleting. 128 | renderer.BindFramebuffer(gl::DRAW_FRAMEBUFFER, 0); 129 | renderer.BindRenderbuffer(gl::RENDERBUFFER, 0); 130 | renderer.DeleteFramebuffers(1, &framebuffer); 131 | renderer.DeleteRenderbuffers(1, &renderbuffer); 132 | } 133 | } 134 | 135 | fn config_template() -> ConfigTemplate { 136 | ConfigTemplateBuilder::default() 137 | .with_alpha_size(8) 138 | // Offscreen rendering has no support window surface support. 139 | .with_surface_type(ConfigSurfaceTypes::empty()) 140 | .build() 141 | } 142 | } 143 | -------------------------------------------------------------------------------- /glutin_examples/examples/window.rs: -------------------------------------------------------------------------------- 1 | use winit::event_loop::EventLoop; 2 | 3 | fn main() { 4 | glutin_examples::main(EventLoop::new()) 5 | } 6 | -------------------------------------------------------------------------------- /glutin_examples/src/lib.rs: -------------------------------------------------------------------------------- 1 | use std::ffi::{CStr, CString}; 2 | use std::num::NonZeroU32; 3 | use std::ops::Deref; 4 | 5 | use winit::event::{Event, WindowEvent}; 6 | use winit::event_loop::ControlFlow; 7 | use winit::window::WindowBuilder; 8 | 9 | use raw_window_handle::HasRawWindowHandle; 10 | 11 | use glutin::config::ConfigTemplateBuilder; 12 | use glutin::context::{ContextApi, ContextAttributesBuilder, Version}; 13 | use glutin::display::GetGlDisplay; 14 | use glutin::prelude::*; 15 | use glutin::surface::SwapInterval; 16 | 17 | use glutin_tao::{self, DisplayBuilder, GlWindow}; 18 | 19 | pub mod gl { 20 | #![allow(clippy::all)] 21 | include!(concat!(env!("OUT_DIR"), "/gl_bindings.rs")); 22 | 23 | pub use Gles2 as Gl; 24 | } 25 | 26 | pub fn main(event_loop: winit::event_loop::EventLoop<()>) { 27 | // Only windows requires the window to be present before creating the display. 28 | // Other platforms don't really need one. 29 | // 30 | // XXX if you don't care about running on android or so you can safely remove 31 | // this condition and always pass the window builder. 32 | let window_builder = 33 | if cfg!(wgl_backend) { Some(WindowBuilder::new().with_transparent(true)) } else { None }; 34 | 35 | // The template will match only the configurations supporting rendering 36 | // to windows. 37 | // 38 | // XXX We force transparency only on macOS, given that EGL on X11 doesn't 39 | // have it, but we still want to show window. The macOS situation is like 40 | // that, because we can query only one config at a time on it, but all 41 | // normal platforms will return multiple configs, so we can find the config 42 | // with transparency ourselves inside the `reduce`. 43 | let template = 44 | ConfigTemplateBuilder::new().with_alpha_size(8).with_transparency(cfg!(cgl_backend)); 45 | 46 | let display_builder = DisplayBuilder::new().with_window_builder(window_builder); 47 | 48 | let (mut window, gl_config) = display_builder 49 | .build(&event_loop, template, |configs| { 50 | // Find the config with the maximum number of samples, so our triangle will 51 | // be smooth. 52 | configs 53 | .reduce(|accum, config| { 54 | let transparency_check = config.supports_transparency().unwrap_or(false) 55 | & !accum.supports_transparency().unwrap_or(false); 56 | 57 | if transparency_check || config.num_samples() > accum.num_samples() { 58 | config 59 | } else { 60 | accum 61 | } 62 | }) 63 | .unwrap() 64 | }) 65 | .unwrap(); 66 | 67 | println!("Picked a config with {} samples", gl_config.num_samples()); 68 | 69 | let raw_window_handle = window.as_ref().map(|window| window.raw_window_handle()); 70 | 71 | // XXX The display could be obtained from the any object created by it, so we 72 | // can query it from the config. 73 | let gl_display = gl_config.display(); 74 | 75 | // The context creation part. It can be created before surface and that's how 76 | // it's expected in multithreaded + multiwindow operation mode, since you 77 | // can send NotCurrentContext, but not Surface. 78 | let context_attributes = ContextAttributesBuilder::new().build(raw_window_handle); 79 | 80 | // Since glutin by default tries to create OpenGL core context, which may not be 81 | // present we should try gles. 82 | let fallback_context_attributes = ContextAttributesBuilder::new() 83 | .with_context_api(ContextApi::Gles(None)) 84 | .build(raw_window_handle); 85 | 86 | // There are also some old devices that support neither modern OpenGL nor GLES. 87 | // To support these we can try and create a 2.1 context. 88 | let legacy_context_attributes = ContextAttributesBuilder::new() 89 | .with_context_api(ContextApi::OpenGl(Some(Version::new(2, 1)))) 90 | .build(raw_window_handle); 91 | 92 | let mut not_current_gl_context = Some(unsafe { 93 | gl_display.create_context(&gl_config, &context_attributes).unwrap_or_else(|_| { 94 | gl_display.create_context(&gl_config, &fallback_context_attributes).unwrap_or_else( 95 | |_| { 96 | gl_display 97 | .create_context(&gl_config, &legacy_context_attributes) 98 | .expect("failed to create context") 99 | }, 100 | ) 101 | }) 102 | }); 103 | 104 | let mut state = None; 105 | let mut renderer = None; 106 | event_loop.run(move |event, window_target, control_flow| { 107 | *control_flow = ControlFlow::Wait; 108 | match event { 109 | Event::Resumed | winit::event::Event::NewEvents(winit::event::StartCause::Init) => { 110 | #[cfg(android_platform)] 111 | println!("Android window available"); 112 | 113 | let window = window.take().unwrap_or_else(|| { 114 | let window_builder = WindowBuilder::new().with_transparent(true); 115 | glutin_tao::finalize_window(window_target, window_builder, &gl_config) 116 | .unwrap() 117 | }); 118 | 119 | let attrs = window.build_surface_attributes(<_>::default()); 120 | let gl_surface = unsafe { 121 | gl_config.display().create_window_surface(&gl_config, &attrs).unwrap() 122 | }; 123 | 124 | // Make it current. 125 | let gl_context = 126 | not_current_gl_context.take().unwrap().make_current(&gl_surface).unwrap(); 127 | 128 | // The context needs to be current for the Renderer to set up shaders and 129 | // buffers. It also performs function loading, which needs a current context on 130 | // WGL. 131 | renderer.get_or_insert_with(|| Renderer::new(&gl_display)); 132 | 133 | // Try setting vsync. 134 | if let Err(res) = gl_surface 135 | .set_swap_interval(&gl_context, SwapInterval::Wait(NonZeroU32::new(1).unwrap())) 136 | { 137 | eprintln!("Error setting vsync: {res:?}"); 138 | } 139 | 140 | assert!(state.replace((gl_context, gl_surface, window)).is_none()); 141 | }, 142 | Event::Suspended => { 143 | // This event is only raised on Android, where the backing NativeWindow for a GL 144 | // Surface can appear and disappear at any moment. 145 | println!("Android window removed"); 146 | 147 | // Destroy the GL Surface and un-current the GL Context before ndk-glue releases 148 | // the window back to the system. 149 | let (gl_context, ..) = state.take().unwrap(); 150 | assert!(not_current_gl_context 151 | .replace(gl_context.make_not_current().unwrap()) 152 | .is_none()); 153 | }, 154 | Event::WindowEvent { event, .. } => match event { 155 | WindowEvent::Resized(size) => { 156 | if size.width != 0 && size.height != 0 { 157 | // Some platforms like EGL require resizing GL surface to update the size 158 | // Notable platforms here are Wayland and macOS, other don't require it 159 | // and the function is no-op, but it's wise to resize it for portability 160 | // reasons. 161 | if let Some((gl_context, gl_surface, _)) = &state { 162 | gl_surface.resize( 163 | gl_context, 164 | NonZeroU32::new(size.width).unwrap(), 165 | NonZeroU32::new(size.height).unwrap(), 166 | ); 167 | let renderer = renderer.as_ref().unwrap(); 168 | renderer.resize(size.width as i32, size.height as i32); 169 | } 170 | } 171 | }, 172 | WindowEvent::CloseRequested => { 173 | *control_flow = ControlFlow::Exit; 174 | }, 175 | _ => (), 176 | }, 177 | Event::RedrawEventsCleared => { 178 | if let Some((gl_context, gl_surface, window)) = &state { 179 | let renderer = renderer.as_ref().unwrap(); 180 | renderer.draw(); 181 | window.request_redraw(); 182 | 183 | gl_surface.swap_buffers(gl_context).unwrap(); 184 | } 185 | }, 186 | _ => (), 187 | } 188 | }) 189 | } 190 | 191 | pub struct Renderer { 192 | program: gl::types::GLuint, 193 | vao: gl::types::GLuint, 194 | vbo: gl::types::GLuint, 195 | gl: gl::Gl, 196 | } 197 | 198 | impl Renderer { 199 | pub fn new(gl_display: &D) -> Self { 200 | unsafe { 201 | let gl = gl::Gl::load_with(|symbol| { 202 | let symbol = CString::new(symbol).unwrap(); 203 | gl_display.get_proc_address(symbol.as_c_str()).cast() 204 | }); 205 | 206 | if let Some(renderer) = get_gl_string(&gl, gl::RENDERER) { 207 | println!("Running on {}", renderer.to_string_lossy()); 208 | } 209 | if let Some(version) = get_gl_string(&gl, gl::VERSION) { 210 | println!("OpenGL Version {}", version.to_string_lossy()); 211 | } 212 | 213 | if let Some(shaders_version) = get_gl_string(&gl, gl::SHADING_LANGUAGE_VERSION) { 214 | println!("Shaders version on {}", shaders_version.to_string_lossy()); 215 | } 216 | 217 | let vertex_shader = create_shader(&gl, gl::VERTEX_SHADER, VERTEX_SHADER_SOURCE); 218 | let fragment_shader = create_shader(&gl, gl::FRAGMENT_SHADER, FRAGMENT_SHADER_SOURCE); 219 | 220 | let program = gl.CreateProgram(); 221 | 222 | gl.AttachShader(program, vertex_shader); 223 | gl.AttachShader(program, fragment_shader); 224 | 225 | gl.LinkProgram(program); 226 | 227 | gl.UseProgram(program); 228 | 229 | gl.DeleteShader(vertex_shader); 230 | gl.DeleteShader(fragment_shader); 231 | 232 | let mut vao = std::mem::zeroed(); 233 | gl.GenVertexArrays(1, &mut vao); 234 | gl.BindVertexArray(vao); 235 | 236 | let mut vbo = std::mem::zeroed(); 237 | gl.GenBuffers(1, &mut vbo); 238 | gl.BindBuffer(gl::ARRAY_BUFFER, vbo); 239 | gl.BufferData( 240 | gl::ARRAY_BUFFER, 241 | (VERTEX_DATA.len() * std::mem::size_of::()) as gl::types::GLsizeiptr, 242 | VERTEX_DATA.as_ptr() as *const _, 243 | gl::STATIC_DRAW, 244 | ); 245 | 246 | let pos_attrib = gl.GetAttribLocation(program, b"position\0".as_ptr() as *const _); 247 | let color_attrib = gl.GetAttribLocation(program, b"color\0".as_ptr() as *const _); 248 | gl.VertexAttribPointer( 249 | pos_attrib as gl::types::GLuint, 250 | 2, 251 | gl::FLOAT, 252 | 0, 253 | 5 * std::mem::size_of::() as gl::types::GLsizei, 254 | std::ptr::null(), 255 | ); 256 | gl.VertexAttribPointer( 257 | color_attrib as gl::types::GLuint, 258 | 3, 259 | gl::FLOAT, 260 | 0, 261 | 5 * std::mem::size_of::() as gl::types::GLsizei, 262 | (2 * std::mem::size_of::()) as *const () as *const _, 263 | ); 264 | gl.EnableVertexAttribArray(pos_attrib as gl::types::GLuint); 265 | gl.EnableVertexAttribArray(color_attrib as gl::types::GLuint); 266 | 267 | Self { program, vao, vbo, gl } 268 | } 269 | } 270 | 271 | pub fn draw(&self) { 272 | unsafe { 273 | self.gl.UseProgram(self.program); 274 | 275 | self.gl.BindVertexArray(self.vao); 276 | self.gl.BindBuffer(gl::ARRAY_BUFFER, self.vbo); 277 | 278 | self.gl.ClearColor(0.1, 0.1, 0.1, 0.9); 279 | self.gl.Clear(gl::COLOR_BUFFER_BIT); 280 | self.gl.DrawArrays(gl::TRIANGLES, 0, 3); 281 | } 282 | } 283 | 284 | pub fn resize(&self, width: i32, height: i32) { 285 | unsafe { 286 | self.gl.Viewport(0, 0, width, height); 287 | } 288 | } 289 | } 290 | 291 | impl Deref for Renderer { 292 | type Target = gl::Gl; 293 | 294 | fn deref(&self) -> &Self::Target { 295 | &self.gl 296 | } 297 | } 298 | 299 | impl Drop for Renderer { 300 | fn drop(&mut self) { 301 | unsafe { 302 | self.gl.DeleteProgram(self.program); 303 | self.gl.DeleteBuffers(1, &self.vbo); 304 | self.gl.DeleteVertexArrays(1, &self.vao); 305 | } 306 | } 307 | } 308 | 309 | unsafe fn create_shader( 310 | gl: &gl::Gl, 311 | shader: gl::types::GLenum, 312 | source: &[u8], 313 | ) -> gl::types::GLuint { 314 | let shader = gl.CreateShader(shader); 315 | gl.ShaderSource(shader, 1, [source.as_ptr().cast()].as_ptr(), std::ptr::null()); 316 | gl.CompileShader(shader); 317 | shader 318 | } 319 | 320 | fn get_gl_string(gl: &gl::Gl, variant: gl::types::GLenum) -> Option<&'static CStr> { 321 | unsafe { 322 | let s = gl.GetString(variant); 323 | (!s.is_null()).then(|| CStr::from_ptr(s.cast())) 324 | } 325 | } 326 | 327 | #[rustfmt::skip] 328 | static VERTEX_DATA: [f32; 15] = [ 329 | -0.5, -0.5, 1.0, 0.0, 0.0, 330 | 0.0, 0.5, 0.0, 1.0, 0.0, 331 | 0.5, -0.5, 0.0, 0.0, 1.0, 332 | ]; 333 | 334 | const VERTEX_SHADER_SOURCE: &[u8] = b" 335 | #version 100 336 | precision mediump float; 337 | 338 | attribute vec2 position; 339 | attribute vec3 color; 340 | 341 | varying vec3 v_color; 342 | 343 | void main() { 344 | gl_Position = vec4(position, 0.0, 1.0); 345 | v_color = color; 346 | } 347 | \0"; 348 | 349 | const FRAGMENT_SHADER_SOURCE: &[u8] = b" 350 | #version 100 351 | precision mediump float; 352 | 353 | varying vec3 v_color; 354 | 355 | void main() { 356 | gl_FragColor = vec4(v_color, 1.0); 357 | } 358 | \0"; 359 | -------------------------------------------------------------------------------- /rustfmt.toml: -------------------------------------------------------------------------------- 1 | format_code_in_doc_comments = true 2 | match_block_trailing_comma = true 3 | condense_wildcard_suffixes = true 4 | use_field_init_shorthand = true 5 | normalize_doc_attributes = true 6 | overflow_delimited_expr = true 7 | imports_granularity = "Module" 8 | use_small_heuristics = "Max" 9 | normalize_comments = true 10 | reorder_impl_items = true 11 | use_try_shorthand = true 12 | newline_style = "Unix" 13 | format_strings = true 14 | wrap_comments = true 15 | comment_width = 80 16 | edition = "2021" 17 | --------------------------------------------------------------------------------