├── .github ├── ISSUE_TEMPLATE │ ├── bug_report.md │ ├── build.md │ ├── chore.md │ ├── ci.md │ ├── config.yml │ ├── documentation.md │ ├── feature_request.md │ ├── performance.md │ ├── refactor.md │ ├── revert.md │ ├── style.md │ └── test.md └── PULL_REQUEST_TEMPLATE.md ├── .gitignore ├── .metadata ├── .vscode ├── launch.json └── settings.json ├── CHANGELOG.md ├── LICENSE ├── README.md ├── analysis_options.yaml ├── assets └── blank_16x16.bmp ├── example ├── .gitignore ├── .metadata ├── README.md ├── analysis_options.yaml ├── android │ ├── .gitignore │ ├── app │ │ ├── build.gradle.kts │ │ └── src │ │ │ ├── debug │ │ │ └── AndroidManifest.xml │ │ │ ├── main │ │ │ ├── AndroidManifest.xml │ │ │ ├── kotlin │ │ │ │ └── com │ │ │ │ │ └── example │ │ │ │ │ └── shader_buffers_example │ │ │ │ │ └── MainActivity.kt │ │ │ └── res │ │ │ │ ├── drawable-v21 │ │ │ │ └── launch_background.xml │ │ │ │ ├── drawable │ │ │ │ └── launch_background.xml │ │ │ │ ├── mipmap-hdpi │ │ │ │ └── ic_launcher.png │ │ │ │ ├── mipmap-mdpi │ │ │ │ └── ic_launcher.png │ │ │ │ ├── mipmap-xhdpi │ │ │ │ └── ic_launcher.png │ │ │ │ ├── mipmap-xxhdpi │ │ │ │ └── ic_launcher.png │ │ │ │ ├── mipmap-xxxhdpi │ │ │ │ └── ic_launcher.png │ │ │ │ ├── values-night │ │ │ │ └── styles.xml │ │ │ │ └── values │ │ │ │ └── styles.xml │ │ │ └── profile │ │ │ └── AndroidManifest.xml │ ├── build.gradle.kts │ ├── gradle.properties │ ├── gradle │ │ └── wrapper │ │ │ └── gradle-wrapper.properties │ └── settings.gradle.kts ├── assets │ ├── bricks.jpg │ ├── flutter.png │ ├── noise.png │ ├── noise_color.png │ └── shaders │ │ ├── arrows.frag │ │ ├── common │ │ ├── common_header.frag │ │ └── main_shadertoy.frag │ │ ├── filters │ │ ├── black.frag │ │ └── white.frag │ │ ├── mouse1.frag │ │ ├── mouse2.frag │ │ ├── noise_fade.frag │ │ ├── page_curl.frag │ │ ├── ripple.frag │ │ ├── shader1_bufferA.frag │ │ ├── shader1_main.frag │ │ ├── shader2_bufferA.frag │ │ ├── shader2_main.frag │ │ ├── test.frag │ │ ├── test_isself_buffer_a.frag │ │ ├── test_isself_main.frag │ │ └── water.frag ├── example.md ├── ios │ ├── .gitignore │ ├── Flutter │ │ ├── AppFrameworkInfo.plist │ │ ├── Debug.xcconfig │ │ └── Release.xcconfig │ ├── Runner.xcodeproj │ │ ├── project.pbxproj │ │ ├── project.xcworkspace │ │ │ ├── contents.xcworkspacedata │ │ │ └── xcshareddata │ │ │ │ ├── IDEWorkspaceChecks.plist │ │ │ │ └── WorkspaceSettings.xcsettings │ │ └── xcshareddata │ │ │ └── xcschemes │ │ │ └── Runner.xcscheme │ ├── Runner.xcworkspace │ │ ├── contents.xcworkspacedata │ │ └── xcshareddata │ │ │ ├── IDEWorkspaceChecks.plist │ │ │ └── WorkspaceSettings.xcsettings │ ├── Runner │ │ ├── AppDelegate.swift │ │ ├── Assets.xcassets │ │ │ ├── AppIcon.appiconset │ │ │ │ ├── Contents.json │ │ │ │ ├── Icon-App-1024x1024@1x.png │ │ │ │ ├── Icon-App-20x20@1x.png │ │ │ │ ├── Icon-App-20x20@2x.png │ │ │ │ ├── Icon-App-20x20@3x.png │ │ │ │ ├── Icon-App-29x29@1x.png │ │ │ │ ├── Icon-App-29x29@2x.png │ │ │ │ ├── Icon-App-29x29@3x.png │ │ │ │ ├── Icon-App-40x40@1x.png │ │ │ │ ├── Icon-App-40x40@2x.png │ │ │ │ ├── Icon-App-40x40@3x.png │ │ │ │ ├── Icon-App-60x60@2x.png │ │ │ │ ├── Icon-App-60x60@3x.png │ │ │ │ ├── Icon-App-76x76@1x.png │ │ │ │ ├── Icon-App-76x76@2x.png │ │ │ │ └── Icon-App-83.5x83.5@2x.png │ │ │ └── LaunchImage.imageset │ │ │ │ ├── Contents.json │ │ │ │ ├── LaunchImage.png │ │ │ │ ├── LaunchImage@2x.png │ │ │ │ ├── LaunchImage@3x.png │ │ │ │ └── README.md │ │ ├── Base.lproj │ │ │ ├── LaunchScreen.storyboard │ │ │ └── Main.storyboard │ │ ├── Info.plist │ │ └── Runner-Bridging-Header.h │ └── RunnerTests │ │ └── RunnerTests.swift ├── lib │ ├── main.dart │ └── simple_layers.dart ├── linux │ ├── .gitignore │ ├── CMakeLists.txt │ ├── flutter │ │ ├── CMakeLists.txt │ │ ├── generated_plugin_registrant.cc │ │ ├── generated_plugin_registrant.h │ │ └── generated_plugins.cmake │ ├── main.cc │ ├── my_application.cc │ └── my_application.h ├── macos │ ├── .gitignore │ ├── Flutter │ │ ├── Flutter-Debug.xcconfig │ │ ├── Flutter-Release.xcconfig │ │ └── GeneratedPluginRegistrant.swift │ ├── Runner.xcodeproj │ │ ├── project.pbxproj │ │ ├── project.xcworkspace │ │ │ └── xcshareddata │ │ │ │ └── IDEWorkspaceChecks.plist │ │ └── xcshareddata │ │ │ └── xcschemes │ │ │ └── Runner.xcscheme │ ├── Runner.xcworkspace │ │ ├── contents.xcworkspacedata │ │ └── xcshareddata │ │ │ └── IDEWorkspaceChecks.plist │ ├── Runner │ │ ├── AppDelegate.swift │ │ ├── Assets.xcassets │ │ │ └── AppIcon.appiconset │ │ │ │ ├── Contents.json │ │ │ │ ├── app_icon_1024.png │ │ │ │ ├── app_icon_128.png │ │ │ │ ├── app_icon_16.png │ │ │ │ ├── app_icon_256.png │ │ │ │ ├── app_icon_32.png │ │ │ │ ├── app_icon_512.png │ │ │ │ └── app_icon_64.png │ │ ├── Base.lproj │ │ │ └── MainMenu.xib │ │ ├── Configs │ │ │ ├── AppInfo.xcconfig │ │ │ ├── Debug.xcconfig │ │ │ ├── Release.xcconfig │ │ │ └── Warnings.xcconfig │ │ ├── DebugProfile.entitlements │ │ ├── Info.plist │ │ ├── MainFlutterWindow.swift │ │ └── Release.entitlements │ └── RunnerTests │ │ └── RunnerTests.swift ├── pubspec.lock ├── pubspec.yaml ├── web │ ├── favicon.png │ ├── icons │ │ ├── Icon-192.png │ │ ├── Icon-512.png │ │ ├── Icon-maskable-192.png │ │ └── Icon-maskable-512.png │ ├── index.html │ └── manifest.json └── windows │ ├── .gitignore │ ├── CMakeLists.txt │ ├── flutter │ ├── CMakeLists.txt │ ├── generated_plugin_registrant.cc │ ├── generated_plugin_registrant.h │ └── generated_plugins.cmake │ └── runner │ ├── CMakeLists.txt │ ├── Runner.rc │ ├── flutter_window.cpp │ ├── flutter_window.h │ ├── main.cpp │ ├── resource.h │ ├── resources │ └── app_icon.ico │ ├── runner.exe.manifest │ ├── utils.cpp │ ├── utils.h │ ├── win32_window.cpp │ └── win32_window.h ├── images └── shader_buffers.gif ├── lib ├── shader_buffers.dart └── src │ ├── custom_child.dart │ ├── custom_shader_paint.dart │ ├── i_channel.dart │ ├── imouse.dart │ ├── layer_buffer.dart │ ├── shader_buffers.dart │ └── uniforms.dart ├── pubspec.yaml └── test └── shader_buffers_test.dart /.github/ISSUE_TEMPLATE/bug_report.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Bug Report 3 | about: Create a report to help us improve 4 | title: "fix: " 5 | labels: bug 6 | --- 7 | 8 | **Description** 9 | 10 | A clear and concise description of what the bug is. 11 | 12 | **Steps To Reproduce** 13 | 14 | 1. Go to '...' 15 | 2. Click on '....' 16 | 3. Scroll down to '....' 17 | 4. See error 18 | 19 | **Expected Behavior** 20 | 21 | A clear and concise description of what you expected to happen. 22 | 23 | **Screenshots** 24 | 25 | If applicable, add screenshots to help explain your problem. 26 | 27 | **Additional Context** 28 | 29 | Add any other context about the problem here. 30 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/build.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Build System 3 | about: Changes that affect the build system or external dependencies 4 | title: "build: " 5 | labels: build 6 | --- 7 | 8 | **Description** 9 | 10 | Describe what changes need to be done to the build system and why. 11 | 12 | **Requirements** 13 | 14 | - [ ] The build system is passing 15 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/chore.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Chore 3 | about: Other changes that don't modify src or test files 4 | title: "chore: " 5 | labels: chore 6 | --- 7 | 8 | **Description** 9 | 10 | Clearly describe what change is needed and why. If this changes code then please use another issue type. 11 | 12 | **Requirements** 13 | 14 | - [ ] No functional changes to the code 15 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/ci.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Continuous Integration 3 | about: Changes to the CI configuration files and scripts 4 | title: "ci: " 5 | labels: ci 6 | --- 7 | 8 | **Description** 9 | 10 | Describe what changes need to be done to the ci/cd system and why. 11 | 12 | **Requirements** 13 | 14 | - [ ] The ci system is passing 15 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/config.yml: -------------------------------------------------------------------------------- 1 | blank_issues_enabled: false -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/documentation.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Documentation 3 | about: Improve the documentation so all collaborators have a common understanding 4 | title: "docs: " 5 | labels: documentation 6 | --- 7 | 8 | **Description** 9 | 10 | Clearly describe what documentation you are looking to add or improve. 11 | 12 | **Requirements** 13 | 14 | - [ ] Requirements go here 15 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/feature_request.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Feature Request 3 | about: A new feature to be added to the project 4 | title: "feat: " 5 | labels: feature 6 | --- 7 | 8 | **Description** 9 | 10 | Clearly describe what you are looking to add. The more context the better. 11 | 12 | **Requirements** 13 | 14 | - [ ] Checklist of requirements to be fulfilled 15 | 16 | **Additional Context** 17 | 18 | Add any other context or screenshots about the feature request go here. 19 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/performance.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Performance Update 3 | about: A code change that improves performance 4 | title: "perf: " 5 | labels: performance 6 | --- 7 | 8 | **Description** 9 | 10 | Clearly describe what code needs to be changed and what the performance impact is going to be. Bonus point's if you can tie this directly to user experience. 11 | 12 | **Requirements** 13 | 14 | - [ ] There is no drop in test coverage. 15 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/refactor.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Refactor 3 | about: A code change that neither fixes a bug nor adds a feature 4 | title: "refactor: " 5 | labels: refactor 6 | --- 7 | 8 | **Description** 9 | 10 | Clearly describe what needs to be refactored and why. Please provide links to related issues (bugs or upcoming features) in order to help prioritize. 11 | 12 | **Requirements** 13 | 14 | - [ ] There is no drop in test coverage. 15 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/revert.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Revert Commit 3 | about: Reverts a previous commit 4 | title: "revert: " 5 | labels: revert 6 | --- 7 | 8 | **Description** 9 | 10 | Provide a link to a PR/Commit that you are looking to revert and why. 11 | 12 | **Requirements** 13 | 14 | - [ ] Change has been reverted 15 | - [ ] No change in test coverage has happened 16 | - [ ] A new ticket is created for any follow on work that needs to happen 17 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/style.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Style Changes 3 | about: Changes that do not affect the meaning of the code (white space, formatting, missing semi-colons, etc) 4 | title: "style: " 5 | labels: style 6 | --- 7 | 8 | **Description** 9 | 10 | Clearly describe what you are looking to change and why. 11 | 12 | **Requirements** 13 | 14 | - [ ] There is no drop in test coverage. 15 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/test.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Test 3 | about: Adding missing tests or correcting existing tests 4 | title: "test: " 5 | labels: test 6 | --- 7 | 8 | **Description** 9 | 10 | List out the tests that need to be added or changed. Please also include any information as to why this was not covered in the past. 11 | 12 | **Requirements** 13 | 14 | - [ ] There is no drop in test coverage. 15 | -------------------------------------------------------------------------------- /.github/PULL_REQUEST_TEMPLATE.md: -------------------------------------------------------------------------------- 1 | 8 | 9 | ## Description 10 | 11 | 12 | 13 | ## Type of Change 14 | 15 | 16 | 17 | - [ ] ✨ New feature (non-breaking change which adds functionality) 18 | - [ ] 🛠️ Bug fix (non-breaking change which fixes an issue) 19 | - [ ] ❌ Breaking change (fix or feature that would cause existing functionality to change) 20 | - [ ] 🧹 Code refactor 21 | - [ ] ✅ Build configuration change 22 | - [ ] 📝 Documentation 23 | - [ ] 🗑️ Chore 24 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Miscellaneous 2 | *.class 3 | *.log 4 | *.pyc 5 | *.swp 6 | .DS_Store 7 | .atom/ 8 | .buildlog/ 9 | .history 10 | .svn/ 11 | migrate_working_dir/ 12 | 13 | # IntelliJ related 14 | *.iml 15 | *.ipr 16 | *.iws 17 | .idea/ 18 | 19 | # The .vscode folder contains launch configuration and tasks you configure in 20 | # VS Code which you may wish to be included in version control, so this line 21 | # is commented out by default. 22 | #.vscode/ 23 | 24 | # Flutter/Dart/Pub related 25 | # Libraries should not include pubspec.lock, per https://dart.dev/guides/libraries/private-files#pubspeclock. 26 | /pubspec.lock 27 | **/doc/api/ 28 | .dart_tool/ 29 | .packages 30 | build/ 31 | 32 | images/* 33 | !images/shader_buffers.gif -------------------------------------------------------------------------------- /.metadata: -------------------------------------------------------------------------------- 1 | # This file tracks properties of this Flutter project. 2 | # Used by Flutter tool to assess capabilities and perform upgrades etc. 3 | # 4 | # This file should be version controlled and should not be manually edited. 5 | 6 | version: 7 | revision: "d211f42860350d914a5ad8102f9ec32764dc6d06" 8 | channel: "stable" 9 | 10 | project_type: package 11 | -------------------------------------------------------------------------------- /.vscode/launch.json: -------------------------------------------------------------------------------- 1 | { 2 | // Use IntelliSense to learn about possible attributes. 3 | // Hover to view descriptions of existing attributes. 4 | // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387 5 | "version": "0.2.0", 6 | "configurations": [ 7 | { 8 | "name": "example", 9 | "cwd": "example", 10 | "request": "launch", 11 | "type": "dart" 12 | }, 13 | { 14 | "name": "example (profile mode)", 15 | "cwd": "example", 16 | "request": "launch", 17 | "type": "dart", 18 | "flutterMode": "profile" 19 | }, 20 | { 21 | "name": "example (release mode)", 22 | "cwd": "example", 23 | "request": "launch", 24 | "type": "dart", 25 | "flutterMode": "release" 26 | }, 27 | { 28 | "name": "Simple Layer example", 29 | "type": "dart", 30 | "request": "launch", 31 | "program": "lib/simple_layers.dart", 32 | "flutterMode": "debug", 33 | "cwd": "${workspaceFolder}/example" 34 | }, 35 | ] 36 | } -------------------------------------------------------------------------------- /.vscode/settings.json: -------------------------------------------------------------------------------- 1 | { 2 | "cmake.sourceDirectory": "/home/deimos/FLUTTER/libs/shader_buffers/example/linux" 3 | } -------------------------------------------------------------------------------- /CHANGELOG.md: -------------------------------------------------------------------------------- 1 | ## 1.1.2 2 | - properly dispose ShaderBuffers 3 | 4 | ## 1.1.1 5 | - added `onShaderLoaded' callback to `ShaderBuffers` 6 | - fix the issue with the get of devicePixelRatio which caused a black widget. 7 | 8 | ## 1.1.0 9 | - fix Low Rendering Quality Issue #7 10 | - added `scaleRenderView` to `LayerBuffer` to compute the shader to a scaled resolution compared to the widget size. 11 | 12 | ## 1.0.1 13 | - fix GIF link in README 14 | 15 | ## 1.0.0 16 | - Initial release. 17 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | **shader_buffers** aims to simplify the use of shaders with a focus on the ShaderToy.com 2 | 3 | [![Pub](https://img.shields.io/pub/v/shader_buffers.svg)](https://pub.dev/packages/shader_buffers) 4 | 5 | - [Features](#Features) 6 | - [ShaderBuffers widget Usage](#ShaderBuffers-widget-Usage) 7 | - [User interaction](#User-interaction) 8 | - [Add simple check value operations](#Add-simple-check-value-operations) 9 | - [Layering shaders](#Layering-shaders) 10 | - [Additional information](#Additional-information) 11 | - [Writing a fragment shader](#Writing-a-fragment-shader) 12 | 13 | ## Features 14 | 15 | 16 | - [x] Use shader output to feed other shader textures. 17 | - [x] Feed shaders with asset images or any widgets as `sampler2D uniforms`. 18 | - [x] Capture user interaction. 19 | - [x] Easily add custom uniforms. 20 | - [x] Animate custom uniforms. 21 | - [x] Play / Pause / Rewind shader. 22 | - [x] Conditional operations to check mouse/tap position, time, frame number, and custom uniforms. 23 | 24 | ***Please***, take a look at the [shader_presets](https://github.com/alnitak/shader_presets) package which implements some ready-to-use shaders, like transitions and effects (from [gl-transitions](https://gl-transitions.com/) and [ShaderToy](https://www.shadertoy.com/)). 25 | 26 | Tested on Android, Linux and web, it should work on other desktops. 27 | Seems that impeller engine is not yet ready, on iOS it should work with [impeller disabled](https://docs.flutter.dev/perf/impeller#ios). 28 | Shader examples are from [ShaderToy.com](https://shadertoy.com) and have been slightly modified. Credits links are in the main shaders sources. 29 | 30 | > [!NOTE] 31 | > Using a shader output to feed itself, produces a memory leak: [memory leak issue](https://github.com/flutter/flutter/issues/138627). Please thumb it up! A temporary fix is used. 32 | 33 | ![img](https://github.com/alnitak/shader_buffers/raw/main/images/shader_buffers.gif) 34 | 35 | 36 | ## ShaderBuffers widget Usage 37 | 38 | The main widget to use is `ShaderBuffers`, which takes its size and `mainImage` as input. Optionally, you can add the `buffers`. 39 | 40 | `mainImage` and `buffers` are of type `LayerBuffer`, which defines the fragment shader asset source and the texture channels. 41 | 42 | `mainImage` shader must be provided. The more `buffers`, the more performances will be affected. 43 | Think of `mainImage` as the *Image* layer fragment in ShaderToy.com and `buffers` as *Buffer[A-D]*. 44 | 45 | Each frame buffers are computed from the 1st to the last, then `mainImage`. 46 | 47 | This widget provides the following uniforms to the fragment shader: 48 | * `sampler2D iChannel[0-N]` as many as defined in `LayerBuffer.channels` 49 | * `vec2 iResolution` the widget width and height 50 | * `float iTime` the current time in seconds from the start of rendering 51 | * `float iFrame` the current rendering frame number 52 | * `vec4 iMouse` for user interaction with pointer (see `IMouse`) 53 | 54 | To start, you can define the layers: 55 | ```dart 56 | 57 | /// The main layer uses `shader_main.frag` as a fragment shader source and some float uniforms 58 | final mainImage = LayerBuffer( 59 | shaderAssetsName: 'assets/shaders/shader_main.glsl', 60 | uniforms: Uniforms([ 61 | Uniform( 62 | name: 'blur', 63 | range: const RangeValues(0, 1), 64 | defaultValue: 0.9, 65 | value: 0.9, 66 | ), 67 | Uniform( 68 | name: 'velocity', 69 | range: const RangeValues(0, 1), 70 | defaultValue: 0.2, 71 | value: 0.2, 72 | ), 73 | ]), 74 | ); 75 | ``` 76 | Now you can use `ShaderBuffers`: 77 | ```dart 78 | ShaderController controller = ShaderController(); 79 | ShaderBuffers( 80 | controller: controller, 81 | mainImage: mainImage, 82 | ) 83 | ``` 84 | 85 | `mainImage` and `buffers` are of type `IChannel`. The latter represents the `uniform sampler2D` texture to be passed to the *fragment shader*. 86 | 87 | #### User interaction 88 | **ShaderBuffers** listen to the pointer with *onPointerDown*, *onPointerMove*, *onPointerUp* which give back the controller and the position in pixels. Most of the time is more useful to have back the normalized position (in the 0~1 range) instead of pixels. This can be achieved with *onPointerDownNormalized*, *onPointerMoveNormalized*, *onPointerUpNormalized* callbacks. 89 | With the *controller*, the one passed to *ShaderBuffers*, or the one returned by the *onPointer** callbacks, is possible to do these: 90 | - play 91 | - pause 92 | - rewind 93 | - getState 94 | - getImouse 95 | - getImouseNormalized 96 | 97 | #### Add simple check value operations 98 | It's possible to check for some conditions. 99 | - a condition is bonded to a given ***LayerBuffer***. 100 | - the ***param*** could be:*iMouseX*, *iMouseY*, *iMouseXNormalized*, *iMouseYNormalized*, *iTime*, *iFrame* 101 | - ***checkType*** could be: *minor*, *major*, *equal* 102 | - ***checkValue*** is the value to check 103 | - ***operation*** is the callback that returns true of false based on the resulting check 104 | 105 | 106 | ```dart 107 | controller 108 | ..addConditionalOperation( 109 | ( 110 | layerBuffer: mainImage, 111 | param: Param.iMouseXNormalized, 112 | checkType: CheckOperator.minor, 113 | checkValue: 0.5, 114 | operation: (result) { 115 | /// [result] == true means (iMouseXNormalized < 0.5 ) 116 | }, 117 | ), 118 | ) 119 | ``` 120 | 121 | #### Layering shaders 122 | 123 | 124 | 125 | ```dart 126 | final mainLayer = LayerBuffer( 127 | shaderAssetsName: 'assets/shaders/shader_main.frag', 128 | ); 129 | final bufferA = LayerBuffer( 130 | shaderAssetsName: 'assets/shaders/shader_bufferA.frag', 131 | ); 132 | final bufferB = LayerBuffer( 133 | shaderAssetsName: 'assets/shaders/shader_bufferB.frag', 134 | ); 135 | final bufferC = LayerBuffer( 136 | shaderAssetsName: 'assets/shaders/shader_bufferC.frag', 137 | ); 138 | mainLayer.setChannels([IChannel(buffer: bufferC)]); 139 | bufferB.setChannels([IChannel(buffer: bufferA)]); 140 | bufferC.setChannels([ 141 | IChannel(buffer: bufferA), 142 | IChannel(buffer: bufferB), 143 | IChannel(assetsTexturePath: 'assets/bricks.jpg'), 144 | ]); 145 | ``` 146 | 147 | 148 | ## Additional information 149 | 150 | The main drawback when willing to port ShaderToy shader buffers is that they use 4 floats per RGBA channel, while with Flutter shader we are stuck using 4 int8 RGBA. 151 | Also, the coordinate system is slightly different: the origin in ShaderToy is *bottom-left* while in Flutter, is *top-left*. This latter issue can be easily bypassed where in the main image layer you see this: 152 | `vec2 uv = fragCoord.xy / iResolution.xy;` 153 | after this line, you can add this to swap Y coordinates: 154 | `uv = vec2(uv.x, 1. - uv.y);` 155 | 156 | #### Writing a fragment shader 157 | 158 | It's mandatory to provide the shader the following `uniforms` since **shader_buffer** always sends them: 159 | 160 | ``` 161 | uniform vec2 iResolution; 162 | uniform float iTime; 163 | uniform float iFrame; 164 | uniform vec4 iMouse; 165 | ``` 166 | 167 | For simplicity, there is `assets/shader/common/common_header.frag` to include at the very beginning of the shader: 168 | `#include ` 169 | 170 | it provides also: 171 | `out vec4 fragColor;` 172 | 173 | If you are experimenting with ShaderToy shaders, start your code copied from it and at the bottom of the file include `main_shadertoy.frag`: 174 | `#include ` 175 | 176 | 177 | 178 | 179 | -------------------------------------------------------------------------------- /analysis_options.yaml: -------------------------------------------------------------------------------- 1 | include: package:very_good_analysis/analysis_options.yaml 2 | -------------------------------------------------------------------------------- /assets/blank_16x16.bmp: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/assets/blank_16x16.bmp -------------------------------------------------------------------------------- /example/.gitignore: -------------------------------------------------------------------------------- 1 | # Miscellaneous 2 | *.class 3 | *.log 4 | *.pyc 5 | *.swp 6 | .DS_Store 7 | .atom/ 8 | .buildlog/ 9 | .history 10 | .svn/ 11 | migrate_working_dir/ 12 | 13 | # IntelliJ related 14 | *.iml 15 | *.ipr 16 | *.iws 17 | .idea/ 18 | 19 | # The .vscode folder contains launch configuration and tasks you configure in 20 | # VS Code which you may wish to be included in version control, so this line 21 | # is commented out by default. 22 | #.vscode/ 23 | 24 | # Flutter/Dart/Pub related 25 | **/doc/api/ 26 | **/ios/Flutter/.last_build_id 27 | .dart_tool/ 28 | .flutter-plugins 29 | .flutter-plugins-dependencies 30 | .packages 31 | .pub-cache/ 32 | .pub/ 33 | /build/ 34 | 35 | # Symbolication related 36 | app.*.symbols 37 | 38 | # Obfuscation related 39 | app.*.map.json 40 | 41 | # Android Studio will place build artifacts here 42 | /android/app/debug 43 | /android/app/profile 44 | /android/app/release 45 | -------------------------------------------------------------------------------- /example/.metadata: -------------------------------------------------------------------------------- 1 | # This file tracks properties of this Flutter project. 2 | # Used by Flutter tool to assess capabilities and perform upgrades etc. 3 | # 4 | # This file should be version controlled and should not be manually edited. 5 | 6 | version: 7 | revision: "05db9689081f091050f01aed79f04dce0c750154" 8 | channel: "stable" 9 | 10 | project_type: app 11 | 12 | # Tracks metadata for the flutter migrate command 13 | migration: 14 | platforms: 15 | - platform: root 16 | create_revision: 05db9689081f091050f01aed79f04dce0c750154 17 | base_revision: 05db9689081f091050f01aed79f04dce0c750154 18 | - platform: android 19 | create_revision: 05db9689081f091050f01aed79f04dce0c750154 20 | base_revision: 05db9689081f091050f01aed79f04dce0c750154 21 | 22 | # User provided section 23 | 24 | # List of Local paths (relative to this file) that should be 25 | # ignored by the migrate tool. 26 | # 27 | # Files that are not part of the templates will be ignored by default. 28 | unmanaged_files: 29 | - 'lib/main.dart' 30 | - 'ios/Runner.xcodeproj/project.pbxproj' 31 | -------------------------------------------------------------------------------- /example/README.md: -------------------------------------------------------------------------------- 1 | # example 2 | 3 | A new Flutter project. 4 | 5 | ## Getting Started 6 | 7 | This project is a starting point for a Flutter application. 8 | 9 | A few resources to get you started if this is your first Flutter project: 10 | 11 | - [Lab: Write your first Flutter app](https://docs.flutter.dev/get-started/codelab) 12 | - [Cookbook: Useful Flutter samples](https://docs.flutter.dev/cookbook) 13 | 14 | For help getting started with Flutter development, view the 15 | [online documentation](https://docs.flutter.dev/), which offers tutorials, 16 | samples, guidance on mobile development, and a full API reference. 17 | -------------------------------------------------------------------------------- /example/analysis_options.yaml: -------------------------------------------------------------------------------- 1 | include: package:very_good_analysis/analysis_options.yaml 2 | -------------------------------------------------------------------------------- /example/android/.gitignore: -------------------------------------------------------------------------------- 1 | gradle-wrapper.jar 2 | /.gradle 3 | /captures/ 4 | /gradlew 5 | /gradlew.bat 6 | /local.properties 7 | GeneratedPluginRegistrant.java 8 | .cxx/ 9 | 10 | # Remember to never publicly share your keystore. 11 | # See https://flutter.dev/to/reference-keystore 12 | key.properties 13 | **/*.keystore 14 | **/*.jks 15 | -------------------------------------------------------------------------------- /example/android/app/build.gradle.kts: -------------------------------------------------------------------------------- 1 | plugins { 2 | id("com.android.application") 3 | id("kotlin-android") 4 | // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins. 5 | id("dev.flutter.flutter-gradle-plugin") 6 | } 7 | 8 | android { 9 | namespace = "com.example.shader_buffers_example" 10 | compileSdk = flutter.compileSdkVersion 11 | ndkVersion = flutter.ndkVersion 12 | 13 | compileOptions { 14 | sourceCompatibility = JavaVersion.VERSION_11 15 | targetCompatibility = JavaVersion.VERSION_11 16 | } 17 | 18 | kotlinOptions { 19 | jvmTarget = JavaVersion.VERSION_11.toString() 20 | } 21 | 22 | defaultConfig { 23 | // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html). 24 | applicationId = "com.example.shader_buffers_example" 25 | // You can update the following values to match your application needs. 26 | // For more information, see: https://flutter.dev/to/review-gradle-config. 27 | minSdk = flutter.minSdkVersion 28 | targetSdk = flutter.targetSdkVersion 29 | versionCode = flutter.versionCode 30 | versionName = flutter.versionName 31 | } 32 | 33 | buildTypes { 34 | release { 35 | // TODO: Add your own signing config for the release build. 36 | // Signing with the debug keys for now, so `flutter run --release` works. 37 | signingConfig = signingConfigs.getByName("debug") 38 | } 39 | } 40 | } 41 | 42 | flutter { 43 | source = "../.." 44 | } 45 | -------------------------------------------------------------------------------- /example/android/app/src/debug/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /example/android/app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 6 | 15 | 19 | 23 | 24 | 25 | 26 | 27 | 28 | 30 | 33 | 34 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | -------------------------------------------------------------------------------- /example/android/app/src/main/kotlin/com/example/shader_buffers_example/MainActivity.kt: -------------------------------------------------------------------------------- 1 | package com.example.shader_buffers_example 2 | 3 | import io.flutter.embedding.android.FlutterActivity 4 | 5 | class MainActivity : FlutterActivity() 6 | -------------------------------------------------------------------------------- /example/android/app/src/main/res/drawable-v21/launch_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 12 | 13 | -------------------------------------------------------------------------------- /example/android/app/src/main/res/drawable/launch_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 12 | 13 | -------------------------------------------------------------------------------- /example/android/app/src/main/res/mipmap-hdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/android/app/src/main/res/mipmap-hdpi/ic_launcher.png -------------------------------------------------------------------------------- /example/android/app/src/main/res/mipmap-mdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/android/app/src/main/res/mipmap-mdpi/ic_launcher.png -------------------------------------------------------------------------------- /example/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png -------------------------------------------------------------------------------- /example/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /example/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /example/android/app/src/main/res/values-night/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 9 | 15 | 18 | 19 | -------------------------------------------------------------------------------- /example/android/app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 9 | 15 | 18 | 19 | -------------------------------------------------------------------------------- /example/android/app/src/profile/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /example/android/build.gradle.kts: -------------------------------------------------------------------------------- 1 | allprojects { 2 | repositories { 3 | google() 4 | mavenCentral() 5 | } 6 | } 7 | 8 | val newBuildDir: Directory = 9 | rootProject.layout.buildDirectory 10 | .dir("../../build") 11 | .get() 12 | rootProject.layout.buildDirectory.value(newBuildDir) 13 | 14 | subprojects { 15 | val newSubprojectBuildDir: Directory = newBuildDir.dir(project.name) 16 | project.layout.buildDirectory.value(newSubprojectBuildDir) 17 | } 18 | subprojects { 19 | project.evaluationDependsOn(":app") 20 | } 21 | 22 | tasks.register("clean") { 23 | delete(rootProject.layout.buildDirectory) 24 | } 25 | -------------------------------------------------------------------------------- /example/android/gradle.properties: -------------------------------------------------------------------------------- 1 | org.gradle.jvmargs=-Xmx8G -XX:MaxMetaspaceSize=4G -XX:ReservedCodeCacheSize=512m -XX:+HeapDumpOnOutOfMemoryError 2 | android.useAndroidX=true 3 | android.enableJetifier=true 4 | -------------------------------------------------------------------------------- /example/android/gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionBase=GRADLE_USER_HOME 2 | distributionPath=wrapper/dists 3 | zipStoreBase=GRADLE_USER_HOME 4 | zipStorePath=wrapper/dists 5 | distributionUrl=https\://services.gradle.org/distributions/gradle-8.12-all.zip 6 | -------------------------------------------------------------------------------- /example/android/settings.gradle.kts: -------------------------------------------------------------------------------- 1 | pluginManagement { 2 | val flutterSdkPath = 3 | run { 4 | val properties = java.util.Properties() 5 | file("local.properties").inputStream().use { properties.load(it) } 6 | val flutterSdkPath = properties.getProperty("flutter.sdk") 7 | require(flutterSdkPath != null) { "flutter.sdk not set in local.properties" } 8 | flutterSdkPath 9 | } 10 | 11 | includeBuild("$flutterSdkPath/packages/flutter_tools/gradle") 12 | 13 | repositories { 14 | google() 15 | mavenCentral() 16 | gradlePluginPortal() 17 | } 18 | } 19 | 20 | plugins { 21 | id("dev.flutter.flutter-plugin-loader") version "1.0.0" 22 | id("com.android.application") version "8.9.1" apply false 23 | id("org.jetbrains.kotlin.android") version "2.1.0" apply false 24 | } 25 | 26 | include(":app") 27 | -------------------------------------------------------------------------------- /example/assets/bricks.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/assets/bricks.jpg -------------------------------------------------------------------------------- /example/assets/flutter.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/assets/flutter.png -------------------------------------------------------------------------------- /example/assets/noise.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/assets/noise.png -------------------------------------------------------------------------------- /example/assets/noise_color.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/assets/noise_color.png -------------------------------------------------------------------------------- /example/assets/shaders/arrows.frag: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | // credits: 4 | // https://www.shadertoy.com/view/Nty3Wm 5 | 6 | // ------ START SHADERTOY CODE ----- 7 | #define pi 3.14159 8 | 9 | float thc(float a, float b) { 10 | return tanh(a * cos(b)) / tanh(a); 11 | } 12 | 13 | // square length 14 | float mlength(vec2 uv) { 15 | return max(abs(uv.x), abs(uv.y)); 16 | } 17 | 18 | vec2 rot(vec2 uv, float a) { 19 | mat2 mat = mat2(cos(a), -sin(a), 20 | sin(a), cos(a)); 21 | return mat * uv; 22 | } 23 | 24 | float sdEquilateralTriangle( in vec2 p ) 25 | { 26 | const float k = sqrt(3.0); 27 | p.x = abs(p.x) - 1.0; 28 | p.y = p.y + 1.0/k; 29 | if( p.x+k*p.y>0.0 ) p = vec2(p.x-k*p.y,-k*p.x-p.y)/2.0; 30 | p.x -= clamp( p.x, -2.0, 0.0 ); 31 | return -length(p)*sign(p.y); 32 | } 33 | 34 | float sdBox( in vec2 p, in vec2 b ) 35 | { 36 | vec2 d = abs(p)-b; 37 | return length(max(d,0.0)) + min(max(d.x,d.y),0.0); 38 | } 39 | 40 | // draws an arrow (d is used to make it go up + down) 41 | float arrow(vec2 uv, float d) { 42 | float h = 0.1 + 0.4 * thc(4.,2. * d); 43 | float d1 = sdEquilateralTriangle(uv-vec2(0.,0.25 - h)); 44 | float s1 = step(d1, -0.5); 45 | 46 | float d2 = sdBox(uv - vec2(0.,-h), vec2(0.05,0.2)); 47 | float s2 = step(d2, 0.); 48 | 49 | return max(s1, s2); 50 | } 51 | 52 | vec3 pal( in float t, in vec3 a, in vec3 b, in vec3 c, in vec3 d ) 53 | { 54 | return a + b*cos( 6.28318*(c*t+d) ); 55 | } 56 | 57 | 58 | void mainImage( out vec4 fragColor, in vec2 fragCoord ) 59 | { 60 | vec2 uv = (fragCoord-0.5*iResolution.xy)/iResolution.y; 61 | 62 | // scale (number of arrows) 63 | float sc = 10.; 64 | vec2 ipos = floor(sc * uv) + 0.5; 65 | ipos /= sc; 66 | vec2 fpos = fract(sc * uv) - 0.5; 67 | 68 | vec2 p = (iMouse.xy-0.5*iResolution.xy)/iResolution.y; 69 | 70 | // moving point 71 | // p = 0.4 * vec2(iResolution.x/iResolution.y * thc(2., 0.5 * iTime), sin(iTime)); 72 | 73 | // cursor 74 | float d2 = length(uv-p); 75 | float s2 = step(d2,0.02) - step(d2,0.016); 76 | s2 *= 0.5; 77 | 78 | // grid 79 | float d3 = mlength(fpos); 80 | float s3 = step(d3,0.5) - step(d3,0.48); 81 | s3 *= 0.2; 82 | 83 | // change me! 84 | float n = 1.; 85 | // n = -3.; 86 | 87 | // rotate arrows towards cursor 88 | float th = -0.5 * pi + n * atan(p.y-ipos.y, p.x-ipos.x); 89 | fpos = rot(fpos, th); 90 | 91 | // shrink arrows that are far away 92 | fpos *= 1. + d2 * d2; 93 | 94 | // arrow 95 | float s1 = 0.5 * arrow(fpos, d2) ; 96 | 97 | float s = max(max(s1,s2), s3); 98 | 99 | // fade 100 | // s *= pow(1.-length(ipos-p),3.); 101 | 102 | vec3 e = vec3(1.); 103 | vec3 col = s * pal(s3 * th + d2 - 0.4 * iTime, e, e, e, vec3(0.,1., 2.)/3.); 104 | // col = vec3(s); 105 | 106 | fragColor = vec4(col,1.0); 107 | } 108 | // ------ END SHADERTOY CODE ----- 109 | 110 | 111 | 112 | #include -------------------------------------------------------------------------------- /example/assets/shaders/common/common_header.frag: -------------------------------------------------------------------------------- 1 | // This include is mandatory for all shaders since the [LayerBuffer] always 2 | // set the uniforms defined here 3 | #version 460 core 4 | #include 5 | precision mediump float; 6 | 7 | 8 | // add `uniform sampler2D iChannel[0-N];` into frag source as needed 9 | uniform vec2 iResolution; 10 | uniform float iTime; 11 | uniform float iFrame; 12 | uniform vec4 iMouse; 13 | 14 | out vec4 fragColor; -------------------------------------------------------------------------------- /example/assets/shaders/common/main_shadertoy.frag: -------------------------------------------------------------------------------- 1 | void main() { 2 | // Shader compiler optimizations will remove unusued uniforms. 3 | // Since [LayerBuffer.computeLayer] needs to always set these uniforms, when 4 | // this happens, an error occurs when calling setFloat() 5 | // `IndexError (RangeError (index): Index out of range: index should be less than 3: 3)` 6 | // With the following line, the compiler will not remove unusued 7 | float tmp = (iFrame/iFrame) * (iMouse.x/iMouse.x) * 8 | (iTime/iTime) * (iResolution.x/iResolution.x); 9 | if (tmp != 1.) tmp = 1.; 10 | 11 | mainImage( fragColor, FlutterFragCoord().xy * tmp ); 12 | } -------------------------------------------------------------------------------- /example/assets/shaders/filters/black.frag: -------------------------------------------------------------------------------- 1 | // credits: 2 | // https://github.com/PixiColorEffects/pixi-color-effects/blob/main/src/filters/black/fragment.frag 3 | 4 | // including this is mandatory since the [LayerBuffer] always 5 | // set the uniforms defined in common_header.frag 6 | #include <../common/common_header.frag> 7 | 8 | // this is already defined in the common_header.frag 9 | // precision highp float; 10 | 11 | // I think this is manage by PixiColorEffects internally and 12 | // should represend the normalized windows size. 13 | // Its definition is moved in main() 14 | // varying vec2 vTextureCoord; 15 | 16 | uniform sampler2D uSampler; 17 | uniform float value; // this should be in 0-255 range 18 | 19 | void main() { 20 | 21 | vec2 vTextureCoord = FlutterFragCoord().xy / iResolution.xy; 22 | 23 | float bval = value / 255.0; 24 | float wval = (255.0 / (255.0 - value)); 25 | 26 | // texture2D is not a SKSL function. Renaming it to "texture" 27 | // vec3 color = texture2D(uSampler, vTextureCoord).rgb; 28 | vec3 color = texture(uSampler, vTextureCoord).rgb; 29 | color = color * wval - (bval * wval); 30 | 31 | // gl_FragColor is named "fragColor" 32 | // texture2D is not a SKSL function. Renaming to "texture" 33 | // gl_FragColor = vec4(color, texture2D(uSampler, vTextureCoord).a); 34 | fragColor = vec4(color, texture(uSampler, vTextureCoord).a); 35 | } 36 | -------------------------------------------------------------------------------- /example/assets/shaders/filters/white.frag: -------------------------------------------------------------------------------- 1 | // credits: 2 | // https://github.com/PixiColorEffects/pixi-color-effects/blob/main/src/filters/white/fragment.frag 3 | 4 | // including this is mandatory since the [LayerBuffer] always 5 | // set the uniforms defined in common_header.frag 6 | #include <../common/common_header.frag> 7 | 8 | // this is already defined in the common_header.frag 9 | // precision highp float; 10 | 11 | // I think this is manage by PixiColorEffects internally and 12 | // should represend the normalized windows size. 13 | // Its definition is moved in main() 14 | // varying vec2 vTextureCoord; 15 | 16 | uniform sampler2D uSampler; 17 | uniform float value; // this should be in 0-255 range 18 | 19 | void main() { 20 | 21 | vec2 vTextureCoord = FlutterFragCoord().xy / iResolution.xy; 22 | 23 | float bval = 0.0 / 255.0; 24 | float wval = (255.0 / (value - 255.0) * -1.0); 25 | 26 | // texture2D is not a SKSL function. Renaming it to "texture" 27 | // vec3 color = texture2D(uSampler, vTextureCoord).rgb; 28 | vec3 color = texture(uSampler, vTextureCoord).rgb; 29 | color = color * wval - (bval * wval); 30 | 31 | // gl_FragColor is named "fragColor" 32 | // texture2D is not a SKSL function. Renaming to "texture" 33 | // gl_FragColor = vec4(color, texture2D(uSampler, vTextureCoord).a); 34 | fragColor = vec4(color, texture(uSampler, vTextureCoord).a); 35 | } -------------------------------------------------------------------------------- /example/assets/shaders/mouse1.frag: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | 4 | // credits: 5 | // https://www.shadertoy.com/view/XlyBzt 6 | 7 | // ------ START SHADERTOY CODE ----- 8 | void mainImage( out vec4 fragColor, in vec2 fragCoord ) 9 | { 10 | vec3 col = vec3(0.); 11 | 12 | //Draw a red cross where the mouse button was last down. 13 | if(abs(iMouse.x-fragCoord.x) < 4.) { 14 | col = vec3(1.,0.,0.); 15 | } 16 | if(abs(iMouse.y-fragCoord.y) < 4.) { 17 | col = vec3(1.,0.,0.); 18 | } 19 | 20 | //If the button is currently up, (iMouse.z, iMouse.w) is where the mouse 21 | //was when the button last went down. 22 | if(abs(iMouse.z-fragCoord.x) < 2.) { 23 | col = vec3(0.,0.,1.); 24 | } 25 | if(abs(iMouse.w-fragCoord.y) < 2.) { 26 | col = vec3(0.,0.,1.); 27 | } 28 | 29 | //If the button is currently down, (-iMouse.z, -iMouse.w) is where 30 | //the button was when the click occurred. 31 | if(abs(-iMouse.z-fragCoord.x) < 2.) { 32 | col = vec3(0.,1.,0.); 33 | } 34 | if(abs(-iMouse.w-fragCoord.y) < 2.) { 35 | col = vec3(0.,1.,0.); 36 | } 37 | 38 | fragColor = vec4(col, 1.0); 39 | } 40 | // ------ END SHADERTOY CODE ----- 41 | 42 | 43 | 44 | #include -------------------------------------------------------------------------------- /example/assets/shaders/mouse2.frag: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | 4 | 5 | // credits: 6 | // https://www.shadertoy.com/view/Mss3zH 7 | 8 | // ------ START SHADERTOY CODE ----- 9 | float distanceToSegment( vec2 a, vec2 b, vec2 p ) 10 | { 11 | vec2 pa = p - a, ba = b - a; 12 | float h = clamp( dot(pa,ba)/dot(ba,ba), 0.0, 1.0 ); 13 | return length( pa - ba*h ); 14 | } 15 | 16 | void mainImage( out vec4 fragColor, in vec2 fragCoord ) 17 | { 18 | vec2 p = fragCoord / iResolution.x; 19 | vec2 cen = 0.5*iResolution.xy/iResolution.x; 20 | vec4 m = iMouse / iResolution.x; 21 | 22 | vec3 col = vec3(0.0); 23 | 24 | if( m.z>0.0 ) // button is down 25 | { 26 | float d = distanceToSegment( m.xy, abs(m.zw), p ); 27 | col = mix( col, vec3(1.0,1.0,0.0), 1.0-smoothstep(.004,0.008, d) ); 28 | } 29 | if( m.w>0.0 ) // button click 30 | { 31 | col = mix( col, vec3(1.0,1.0,1.0), 1.0-smoothstep(0.1,0.105, length(p-cen)) ); 32 | } 33 | 34 | col = mix( col, vec3(1.0,0.0,0.0), 1.0-smoothstep(0.03,0.035, length(p- m.xy )) ); 35 | col = mix( col, vec3(0.0,0.0,1.0), 1.0-smoothstep(0.03,0.035, length(p-abs(m.zw))) ); 36 | 37 | fragColor = vec4( col, 1.0 ); 38 | } 39 | // ------ END SHADERTOY CODE ----- 40 | 41 | 42 | 43 | #include -------------------------------------------------------------------------------- /example/assets/shaders/noise_fade.frag: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | uniform sampler2D iChannel0; 4 | uniform sampler2D iChannel1; 5 | 6 | 7 | // credits: 8 | // https://www.shadertoy.com/view/MstBzf 9 | 10 | // ------ START SHADERTOY CODE ----- 11 | float seed = 16.0; 12 | float sinNoise(vec2 uv) 13 | { 14 | return fract(abs(sin(uv.x * 180.0 + uv.y * 3077.0) * 53703.27)); 15 | } 16 | 17 | float valueNoise(vec2 uv, float scale) 18 | { 19 | vec2 luv = fract(uv * scale); 20 | vec2 luvs = smoothstep(0.0, 1.0, fract(uv * scale)); 21 | vec2 id = floor(uv * scale); 22 | float tl = sinNoise(id + vec2(0.0, 1.0)); 23 | float tr = sinNoise(id + vec2(1.0, 1.0)); 24 | float t = mix(tl, tr, luvs.x); 25 | 26 | float bl = sinNoise(id + vec2(0.0, 0.0)); 27 | float br = sinNoise(id + vec2(1.0, 0.0)); 28 | float b = mix(bl, br, luvs.x); 29 | 30 | return mix(b, t, luvs.y) * 2.0 - 1.0; 31 | } 32 | 33 | void mainImage( out vec4 fragColor, in vec2 fragCoord ) 34 | { 35 | // Normalized pixel coordinates (from 0 to 1) 36 | vec2 uv = fragCoord/iResolution.xy; 37 | 38 | // uv.y /= iResolution.x/iResolution.y; 39 | 40 | float sinN = sinNoise(uv); 41 | 42 | float scale = 4.0; 43 | 44 | float fractValue = 0.0; 45 | float amp = 1.0; 46 | for(int i = 0; i < 16; i++) 47 | { 48 | fractValue += valueNoise(uv, float(i + 1) * scale) * amp; 49 | amp /= 2.0; 50 | } 51 | 52 | fractValue /= 2.0; 53 | fractValue += 0.5; 54 | 55 | float time = mix(-0.5, 1.0, cos(iTime)/2.0 +0.5); 56 | //time = 1.0; 57 | float cutoff = smoothstep(time+ 0.1, time- 0.1, fractValue); 58 | 59 | vec4 col = mix(texture(iChannel1, uv), texture(iChannel0, uv), cutoff); 60 | 61 | // Output to screen 62 | fragColor = vec4(col); 63 | } 64 | // ------ END SHADERTOY CODE ----- 65 | 66 | 67 | 68 | #include -------------------------------------------------------------------------------- /example/assets/shaders/page_curl.frag: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | uniform sampler2D iChannel0; 4 | uniform sampler2D iChannel1; 5 | 6 | // credits: 7 | // https://www.shadertoy.com/view/ls3cDB 8 | 9 | // ------ START SHADERTOY CODE ----- 10 | #define pi 3.14159265359 11 | #define radius .1 12 | 13 | void mainImage( out vec4 fragColor, in vec2 fragCoord ) 14 | { 15 | float aspect = iResolution.x / iResolution.y; 16 | 17 | vec2 uv = fragCoord * vec2(aspect, 1.) / iResolution.xy; 18 | vec2 mouse = iMouse.xy * vec2(aspect, 1.) / iResolution.xy; 19 | // mouse.y = 0.; // fix movements horizontally 20 | vec2 mouseDir = normalize(abs(iMouse.zw) - iMouse.xy); 21 | // mouseDir.y = 0.; // fix movements horizontally 22 | vec2 origin = clamp(mouse - mouseDir * mouse.x / mouseDir.x, 0., 1.); 23 | // origin.y = 0.; // fix movements horizontally 24 | 25 | float mouseDist = clamp(length(mouse - origin) 26 | + (aspect - (abs(iMouse.z) / iResolution.x) * aspect) / mouseDir.x, 0., aspect / mouseDir.x); 27 | 28 | if (mouseDir.x < 0.) 29 | { 30 | mouseDist = distance(mouse, origin); 31 | } 32 | 33 | float proj = dot(uv - origin, mouseDir); 34 | float dist = proj - mouseDist; 35 | 36 | vec2 linePoint = uv - dist * mouseDir; 37 | 38 | if (dist > radius) 39 | { 40 | fragColor = texture(iChannel1, uv * vec2(1. / aspect, 1.)); 41 | fragColor.rgb *= pow(clamp(dist - radius, 0., 1.) * 1.5, .2); 42 | } 43 | else if (dist >= 0.) 44 | { 45 | // map to cylinder point 46 | float theta = asin(dist / radius); 47 | vec2 p2 = linePoint + mouseDir * (pi - theta) * radius; 48 | vec2 p1 = linePoint + mouseDir * theta * radius; 49 | uv = (p2.x <= aspect && p2.y <= 1. && p2.x > 0. && p2.y > 0.) ? p2 : p1; 50 | fragColor = texture(iChannel0, uv * vec2(1. / aspect, 1.)); 51 | fragColor.rgb *= pow(clamp((radius - dist) / radius, 0., 1.), .2); 52 | } 53 | else 54 | { 55 | vec2 p = linePoint + mouseDir * (abs(dist) + pi * radius); 56 | uv = (p.x <= aspect && p.y <= 1. && p.x > 0. && p.y > 0.) ? p : uv; 57 | fragColor = texture(iChannel0, uv * vec2(1. / aspect, 1.)); 58 | } 59 | } 60 | // ------ END SHADERTOY CODE ----- 61 | 62 | 63 | 64 | #include -------------------------------------------------------------------------------- /example/assets/shaders/ripple.frag: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | uniform sampler2D iChannel0; 4 | 5 | // credits: 6 | // https://www.shadertoy.com/view/4djGzz 7 | 8 | // ------ START SHADERTOY CODE ----- 9 | // MTAT.03.015 Computer Graphics 10 | // https://courses.cs.ut.ee/2013/cg/ 11 | // 12 | // Basic ripple effect example 13 | 14 | 15 | // Params = (wave frequency in Hz, number of waves per unit distance) 16 | // 17 | vec2 params = vec2(2.5, 10.0); 18 | 19 | // Simple circular wave function 20 | float wave(vec2 pos, float t, float freq, float numWaves, vec2 center) { 21 | float d = length(pos - center); 22 | d = log(1.0 + exp(d)); 23 | return 1.0/(1.0+20.0*d*d) * 24 | sin(2.0*3.1415*(-numWaves*d + t*freq)); 25 | } 26 | 27 | // This height map combines a couple of waves 28 | float height(vec2 pos, float t) { 29 | float w; 30 | w = wave(pos, t, params.x, params.y, vec2(0.5, -0.5)); 31 | w += wave(pos, t, params.x, params.y, -vec2(0.5, -0.5)); 32 | return w; 33 | } 34 | 35 | // Discrete differentiation 36 | vec2 normal(vec2 pos, float t) { 37 | return vec2(height(pos - vec2(0.01, 0), t) - height(pos, t), 38 | height(pos - vec2(0, 0.01), t) - height(pos, t)); 39 | } 40 | 41 | // Simple ripple effect 42 | void mainImage( out vec4 fragColor, in vec2 fragCoord ) { 43 | if (iMouse.z > 0.0) params = 2.0*params*iMouse.xy/iResolution.xy; 44 | else params = vec2(2.5, 10.0); 45 | 46 | vec2 uv = fragCoord.xy / iResolution.xy; 47 | vec2 uvn = 2.0*uv - vec2(1.0); 48 | uv += normal(uvn, iTime); 49 | fragColor = texture(iChannel0, vec2(1.0-uv.x, uv.y)); 50 | } 51 | // ------ END SHADERTOY CODE ----- 52 | 53 | 54 | 55 | #include -------------------------------------------------------------------------------- /example/assets/shaders/shader1_bufferA.frag: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | uniform sampler2D iChannel0; 4 | 5 | 6 | 7 | // ------ START SHADERTOY CODE ----- 8 | // basic feedback mechanism by Xavierseb 9 | void mainImage( out vec4 fragColor, in vec2 fragCoord ){ 10 | 11 | vec2 mouse = iMouse.xy; 12 | // if mouse not detected do something 13 | if(mouse.x <= 0.) mouse = vec2( iResolution.x * (sin(iTime)+1.)/2., iResolution.y/2.); 14 | 15 | // diameter of blob and intensity in same formula because why not 16 | vec3 blob = vec3(.10-clamp(length((fragCoord.xy-mouse.xy)/iResolution.x),0.,.11)); 17 | 18 | vec3 stack= texture(iChannel0,fragCoord.xy/iResolution.xy).xyz * vec3(0.99,.982,.93); 19 | 20 | fragColor = vec4(stack + blob, 1.0); 21 | } 22 | // ------ END SHADERTOY CODE ----- 23 | 24 | 25 | 26 | #include -------------------------------------------------------------------------------- /example/assets/shaders/shader1_main.frag: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | uniform sampler2D iChannel0; 4 | 5 | 6 | 7 | // credits: 8 | // https://www.shadertoy.com/view/WlsGRM 9 | 10 | // ------ START SHADERTOY CODE ----- 11 | void mainImage( out vec4 fragColor, in vec2 fragCoord ){ 12 | fragColor = vec4(texture(iChannel0,fragCoord.xy/iResolution.xy).xyz,1.0); 13 | } 14 | // ------ END SHADERTOY CODE ----- 15 | 16 | 17 | 18 | #include -------------------------------------------------------------------------------- /example/assets/shaders/shader2_bufferA.frag: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | uniform sampler2D iChannel0; 4 | 5 | 6 | 7 | 8 | // ------ START SHADERTOY CODE ----- 9 | #define PAINT_MODE 4 10 | #define MIX_MODE 1 11 | 12 | const float mixPercent = 0.1; 13 | const float brushRadius = 10.0; 14 | 15 | // IMPORTANT: mixPair must be symmetric: mixPair(a,b) + mixPair(b,a) == 0 16 | #if MIX_MODE == 1 17 | vec2 mixPair(vec2 a, vec2 b) 18 | { 19 | return (b - a) * mixPercent; 20 | } 21 | #elif MIX_MODE == 2 22 | vec2 mixPair(vec2 a, vec2 b) 23 | { 24 | vec2 sum = vec2(a.x + a.y, b.x + b.y); 25 | float amount = (sum.y - sum.x); 26 | float totalBig = max(sum.x, sum.y); 27 | if (totalBig == 0.0) 28 | return vec2(0.0, 0.0); 29 | 30 | vec2 movement; 31 | if (amount < 0.0) 32 | { 33 | movement = amount * a / totalBig; 34 | } 35 | else 36 | { 37 | movement = amount * b / totalBig; 38 | } 39 | 40 | return movement * mixPercent; 41 | } 42 | #endif 43 | 44 | vec2 mixNeighbors(vec2 uv, vec4 center) 45 | { 46 | // vec2 tx1 = 1.0 / iResolution.xy; 47 | vec2 tx1 = vec2(2.0, 2.0); 48 | vec4 nx0 = texture(iChannel0, uv + vec2(-tx1.x, 0)); 49 | vec4 nx1 = texture(iChannel0, uv + vec2(tx1.x, 0)); 50 | vec4 ny0 = texture(iChannel0, uv + vec2(0, -tx1.y)); 51 | vec4 ny1 = texture(iChannel0, uv + vec2(0, tx1.y)); 52 | 53 | vec2 result = center.yw; 54 | result += mixPair(center.yw, nx0.yw); 55 | result += mixPair(center.yw, nx1.yw); 56 | result += mixPair(center.yw, ny0.yw); 57 | result += mixPair(center.yw, ny1.yw); 58 | return result; 59 | } 60 | 61 | void mainImage(out vec4 fragColor, in vec2 fragCoord) 62 | { 63 | vec2 uv = fragCoord.xy / iResolution.xy; 64 | vec4 prev = texture(iChannel0, uv); 65 | 66 | prev.yw = mixNeighbors(uv, prev); 67 | 68 | float brush = 0.0; 69 | if (iMouse.z >= 0.0) 70 | { 71 | float d = distance(iMouse.xy, fragCoord.xy); 72 | d /= brushRadius * 3.0; 73 | brush = clamp(1.0 - d * d * d * d, -0.0, 1.0); 74 | } 75 | 76 | vec2 mmask = vec2(1.4, 0.02); 77 | 78 | #if PAINT_MODE == 1 79 | vec2 amt = prev.yw + mmask * brush; 80 | #elif PAINT_MODE == 2 81 | vec2 amt = mix(prev.yw, mmask, brush); 82 | #elif PAINT_MODE == 3 83 | vec2 amt = mix(prev.yw, prev.yw * mmask, brush) + mmask * brush; 84 | #elif PAINT_MODE == 4 85 | float prevTotal = prev.y + prev.w; 86 | vec2 newVal = (vec2(prevTotal, prevTotal) + brush) * mmask; 87 | vec2 amt = mix(prev.yw, newVal, brush); 88 | #endif 89 | 90 | fragColor = vec4(0.0, amt.x, 1.0, amt.y/2.); 91 | } 92 | // ------ END SHADERTOY CODE ----- 93 | 94 | 95 | 96 | 97 | 98 | 99 | #include -------------------------------------------------------------------------------- /example/assets/shaders/shader2_main.frag: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | uniform sampler2D iChannel0; 4 | 5 | 6 | // https://www.shadertoy.com/view/4lySDc 7 | 8 | 9 | 10 | // ------ START SHADERTOY CODE ----- 11 | vec2 lighting(vec2 uv) 12 | { 13 | // vec2 tx1 = 1.0 / iResolution.xy; 14 | vec2 tx1 = vec2(3.0, 3.0); 15 | vec4 nx0 = texture(iChannel0, uv + vec2(-tx1.x, 0)); 16 | vec4 nx1 = texture(iChannel0, uv + vec2(tx1.x, 0)); 17 | vec4 ny0 = texture(iChannel0, uv + vec2(0, -tx1.y)); 18 | vec4 ny1 = texture(iChannel0, uv + vec2(0, tx1.y)); 19 | 20 | float ax0 = nx0.y + nx0.w; 21 | float ax1 = nx1.y + nx1.w; 22 | float ay0 = ny0.y + ny0.w; 23 | float ay1 = ny1.y + ny1.w; 24 | 25 | vec3 tx = vec3(0.35, 0.0, ax0 - ax1); 26 | vec3 ty = vec3(0.0, 0.35, ay0 - ay1); 27 | vec3 N = normalize(cross(tx, ty)); 28 | 29 | vec3 L = normalize(vec3(1.0, 1.0, 2.0)); 30 | 31 | float diff = max(dot(N, L) * 0.65 + 0.35, 0.0); 32 | float spec = clamp(dot(reflect(L, N),vec3(0., 0., -1.)), 0.0, 1.0); 33 | spec = pow(spec, 12.0); 34 | 35 | return vec2(diff, spec); 36 | } 37 | 38 | void mainImage( out vec4 fragColor, in vec2 fragCoord ) 39 | { 40 | vec2 uv = fragCoord.xy / iResolution.xy; 41 | vec4 mat = texture(iChannel0, uv); 42 | 43 | vec3 color0 = vec3(1.0, 1.0, 0.0); 44 | vec3 color1 = vec3(0.0, 0.0, 0.0); 45 | 46 | // normalize material density 47 | float matTotal = mat.y + mat.w; 48 | if (matTotal > 1.0) 49 | mat.yw /= matTotal; 50 | 51 | vec3 matColor = color0 * mat.y + color1 * mat.w; 52 | vec2 light = lighting(uv); 53 | vec3 finalColor = matColor * light.x + light.y; 54 | 55 | fragColor = vec4(finalColor, 1.0); 56 | } 57 | // ------ END SHADERTOY CODE ----- 58 | 59 | 60 | 61 | 62 | #include -------------------------------------------------------------------------------- /example/assets/shaders/test.frag: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | 4 | 5 | // credits: 6 | // https://www.shadertoy.com/view/MttGz7 7 | // https://inspirnathan.com/posts/53-shadertoy-tutorial-part-7/ @method #3 8 | 9 | // ------ START SHADERTOY CODE ----- 10 | // Fork of "zpm test raymarching" by zpm. https://shadertoy.com/view/MclSzX 11 | // 2024-01-20 08:41:14 12 | 13 | // https://inspirnathan.com/posts/53-shadertoy-tutorial-part-7/ @method #3 14 | 15 | #define MAX_MARCHING_STEPS 85. 16 | #define MIN_DIST 0.0 17 | #define MAX_DIST 60.0 18 | #define PRECISION 0.0001 19 | #define EPSILON 0.0001 20 | #define DISTANCE_BIAS 0.7 21 | #define PI 3.14159265359 22 | 23 | #define COLOR_BACKGROUND vec3(0., 0., 0.) 24 | #define COLOR_AMBIENT vec3(0.1, 0.1, 0.1) 25 | 26 | #define MAT_RED vec3(1.,0.,0.) 27 | #define MAT_1 vec3(0.443,0.725,0.953) 28 | #define MAT_2 vec3(0.353,0.671,0.980) 29 | #define MAT_3 vec3(0.208,0.278,0.627) 30 | #define MAT_4 vec3(1. + 0.7*mod(floor(p.x) + floor(p.z), 2.0)) 31 | 32 | 33 | float dot2( in vec3 v ) { return dot(v,v); } 34 | 35 | 36 | 37 | float sdPlane(vec3 p) 38 | { 39 | return p.y; 40 | } 41 | 42 | float sdSphere(vec3 p, float r, vec3 offset) 43 | { 44 | return length(p - offset) - r; 45 | } 46 | 47 | // Distance from p to box whose half-dimensions are b.x, b.y, b.z 48 | float sdBox( vec3 p, vec3 b ) 49 | { 50 | vec3 d = abs(p) - b; 51 | return min( max(d.x,max(d.y,d.z) ),0.0) + length(max(d,0.0)); 52 | } 53 | 54 | // Distance from p to box of half-dimensions b.x,y,z plus buffer radius r 55 | float udRoundBox( vec3 p, vec3 b, float r) 56 | { 57 | return length( max(abs(p)-b,0.0) )-r; 58 | } 59 | 60 | float udTriangle( in vec3 v1, in vec3 v2, in vec3 v3, in vec3 p ) 61 | { 62 | vec3 v21 = v2 - v1; vec3 p1 = p - v1; 63 | vec3 v32 = v3 - v2; vec3 p2 = p - v2; 64 | vec3 v13 = v1 - v3; vec3 p3 = p - v3; 65 | vec3 nor = cross( v21, v13 ); 66 | 67 | return sqrt( (sign(dot(cross(v21,nor),p1)) + 68 | sign(dot(cross(v32,nor),p2)) + 69 | sign(dot(cross(v13,nor),p3))<2.0) 70 | ? 71 | min( min( 72 | dot2(v21*clamp(dot(v21,p1)/dot2(v21),0.0,1.0)-p1), 73 | dot2(v32*clamp(dot(v32,p2)/dot2(v32),0.0,1.0)-p2) ), 74 | dot2(v13*clamp(dot(v13,p3)/dot2(v13),0.0,1.0)-p3) ) 75 | : 76 | dot(nor,p1)*dot(nor,p1)/dot2(nor) ); 77 | } 78 | 79 | 80 | /////////////////////// 81 | // Matrix 82 | /////////////////////// 83 | mat2 rotate2d(float theta) { 84 | float s = sin(theta), c = cos(theta); 85 | return mat2(c, -s, s, c); 86 | } 87 | 88 | // Rotation matrix around the X axis. 89 | mat3 rotateX(float theta) { 90 | float c = cos(theta); 91 | float s = sin(theta); 92 | return mat3( 93 | vec3(1, 0, 0), 94 | vec3(0, c, -s), 95 | vec3(0, s, c) 96 | ); 97 | } 98 | 99 | // Rotation matrix around the Y axis. 100 | mat3 rotateY(float theta) { 101 | float c = cos(theta); 102 | float s = sin(theta); 103 | return mat3( 104 | vec3(c, 0, s), 105 | vec3(0, 1, 0), 106 | vec3(-s, 0, c) 107 | ); 108 | } 109 | 110 | // Rotation matrix around the Z axis. 111 | mat3 rotateZ(float theta) { 112 | float c = cos(theta); 113 | float s = sin(theta); 114 | return mat3( 115 | vec3(c, -s, 0), 116 | vec3(s, c, 0), 117 | vec3(0, 0, 1) 118 | ); 119 | } 120 | 121 | // Identity matrix. 122 | mat3 identity() { 123 | return mat3( 124 | vec3(1, 0, 0), 125 | vec3(0, 1, 0), 126 | vec3(0, 0, 1) 127 | ); 128 | } 129 | 130 | 131 | // This function comes from glsl-rotate https://github.com/dmnsgn/glsl-rotate/blob/main/rotation-3d.glsl 132 | mat4 rotation3d(vec3 axis, float angle) { 133 | axis = normalize(axis); 134 | float s = sin(angle); 135 | float c = cos(angle); 136 | float oc = 1.0 - c; 137 | 138 | return mat4( 139 | oc * axis.x * axis.x + c, oc * axis.x * axis.y - axis.z * s, oc * axis.z * axis.x + axis.y * s, 0.0, 140 | oc * axis.x * axis.y + axis.z * s, oc * axis.y * axis.y + c, oc * axis.y * axis.z - axis.x * s, 0.0, 141 | oc * axis.z * axis.x - axis.y * s, oc * axis.y * axis.z + axis.x * s, oc * axis.z * axis.z + c, 0.0, 142 | 0.0, 0.0, 0.0, 1.0 143 | ); 144 | } 145 | vec3 rotate(vec3 v, vec3 axis, float angle) { 146 | mat4 m = rotation3d(axis, angle); 147 | return (m * vec4(v, 1.0)).xyz; 148 | } 149 | 150 | 151 | 152 | /////////////////////// 153 | // Boolean Operators 154 | /////////////////////// 155 | vec4 opUnion(vec4 d1, vec4 d2) { 156 | return (d1.x < d2.x) ? d1 : d2; 157 | } 158 | 159 | float opSmoothUnion(float d1, float d2, float k) { 160 | float h = clamp( 0.5 + 0.5*(d2-d1)/k, 0., 1. ); 161 | return mix( d2, d1, h ) - k*h*(1.-h); 162 | } 163 | 164 | vec4 opSmoothUnion(vec4 d1, vec4 d2, float k ) 165 | { 166 | float h = clamp(0.5 + 0.5*(d1.x-d2.x)/k, 0., 1.); 167 | vec3 c = mix(d1.yzw, d2.yzw,h); 168 | float d = mix(d1.x, d2.x, h) - k*h*(1.-h); 169 | 170 | return vec4(d, c); 171 | } 172 | 173 | 174 | 175 | vec4 opIntersection(vec4 d1, vec4 d2) { 176 | return (d1.x > d2.x) ? d1 : d2; 177 | } 178 | 179 | float opSmoothIntersection(float d1, float d2, float k) { 180 | float h = clamp( 0.5 - 0.5*(d2-d1)/k, 0.0, 1.0 ); 181 | return mix( d2, d1, h ) + k*h*(1.0-h); 182 | } 183 | 184 | vec4 opSmoothIntersection(vec4 d1, vec4 d2, float k ) 185 | { 186 | float h = clamp(0.5 - 0.5*(d1.x-d2.x)/k, 0., 1.); 187 | vec3 c = mix(d1.yzw, d2.yzw, h); 188 | float d = mix(d1.x, d2.x, h) + k*h*(1.-h); 189 | 190 | return vec4(d, c); 191 | } 192 | 193 | 194 | 195 | vec4 opSubtraction(vec4 d1, vec4 d2) { 196 | return d1.x > -d2.x ? d1 : vec4(-d2.x, d2.yzw); 197 | } 198 | 199 | float opSmoothSubtraction(float d1, float d2, float k) { 200 | float h = clamp( 0.5 - 0.5*(d2+d1)/k, 0.0, 1.0 ); 201 | return mix( d2, -d1, h ) + k*h*(1.0-h); 202 | } 203 | 204 | vec4 opSmoothSubtraction(vec4 d1, vec4 d2, float k) 205 | { 206 | float h = clamp(0.5 - 0.5*(d1.x+d2.x)/k, 0., 1.); 207 | vec3 c = mix(d1.yzw, d2.yzw, h); 208 | float d = mix(d1.x, -d2.x, h ) + k*h*(1.-h); 209 | 210 | return vec4(d, c); 211 | } 212 | 213 | 214 | 215 | float opExtrusion(in vec3 p, in float sdf, in float h) { 216 | vec2 w = vec2(sdf, abs(p.z) - h); 217 | return min(max(w.x, w.y), 0.0) + length(max(w, 0.0)); 218 | } 219 | 220 | 221 | 222 | vec4 sdFlutterLogoUncut(vec3 p) { 223 | 224 | p = rotate(p, vec3(0.0, 0.0, 1.0), -PI/4.); 225 | 226 | vec4 roundedBox1 = vec4( 227 | udRoundBox(p+vec3(1.8, -2., 0.), vec3(.3, 1.5, 0.3), 0.05), 228 | MAT_1); 229 | vec4 roundedBox2 = vec4( 230 | udRoundBox(p+vec3(0.71, -1.52, 0.), vec3(.3, 1., 0.3), 0.05), 231 | MAT_1); 232 | vec4 roundedBox3 = vec4( 233 | udRoundBox(p+vec3(0.01, -0.8, 0.01), vec3(1., .3, 0.33), 0.05), 234 | MAT_3); 235 | 236 | vec4 res = opUnion(roundedBox1, roundedBox2); 237 | res = opUnion(res, roundedBox3); 238 | return res; 239 | } 240 | 241 | 242 | vec4 sdFlutterLogo(vec3 p) { 243 | p = rotate(p, vec3(0., 1., 0.), iTime/10.) + vec3(1., sin(iTime)+.5, 0.); 244 | 245 | vec3 s = vec3(8., 0., 5.); 246 | vec3 id = round(p/s); 247 | p = p - s*id; 248 | 249 | vec4 box1 = vec4( 250 | sdBox(p+vec3(-1.1, -3.8, 0.), vec3(.6, .3, 0.5)), 251 | MAT_1); 252 | vec4 box2 = vec4( 253 | sdBox(p+vec3(-1.12, -2.28, 0.), vec3(.6, .25, 0.5)), 254 | MAT_1); 255 | vec4 box3 = vec4( 256 | sdBox(p+vec3(-1.1, .2, 0.), vec3(.6, .25, 0.5)), 257 | MAT_3); 258 | vec4 flutterUncut = sdFlutterLogoUncut(p); 259 | 260 | vec4 res = opUnion(box1, box2); 261 | res = opUnion(res, box3); 262 | res = opSmoothSubtraction(flutterUncut, res, 0.1); 263 | return res; 264 | } 265 | 266 | vec4 scene(vec3 p) { 267 | 268 | vec4 center = vec4(sdSphere(p, .2, vec3(0., 0., 0.)), MAT_RED); 269 | vec4 plane = vec4(sdPlane(p), MAT_4); 270 | 271 | vec3 p1 = rotate(p, vec3(0., 1., 0.), iTime/4.) + 272 | vec3(1., sin(iTime)*2.+1.3 , 0.); 273 | vec4 flutterLogo = sdFlutterLogo(p); 274 | 275 | vec4 res = opUnion(center, plane); 276 | res = opSmoothUnion(res, flutterLogo, 0.3); 277 | return res; 278 | } 279 | 280 | vec4 rayMarch(vec3 ro, vec3 rd) { 281 | float depth = MIN_DIST; 282 | vec4 d; // .yzw color .x distance ray has travelled 283 | 284 | for (float i = 0.; i < MAX_MARCHING_STEPS; i++) { 285 | vec3 p = ro + depth * rd; 286 | d = scene(p); 287 | depth += d.x * DISTANCE_BIAS; 288 | if (d.x < PRECISION || depth > MAX_DIST) break; 289 | } 290 | 291 | d.x = depth; 292 | 293 | return d; 294 | } 295 | 296 | vec3 calcNormal(in vec3 p) { 297 | vec2 e = vec2(1, -1) * EPSILON; 298 | return normalize( 299 | e.xyy * scene(p + e.xyy).x + 300 | e.yyx * scene(p + e.yyx).x + 301 | e.yxy * scene(p + e.yxy).x + 302 | e.xxx * scene(p + e.xxx).x); 303 | } 304 | 305 | mat3 camera(vec3 cameraPos, vec3 lookAtPoint) { 306 | vec3 cd = normalize(lookAtPoint - cameraPos); 307 | vec3 cr = normalize(cross(vec3(0, 1, 0), cd)); 308 | vec3 cu = normalize(cross(cd, cr)); 309 | 310 | return mat3(-cr, cu, -cd); 311 | } 312 | 313 | void mainImage( out vec4 fragColor, in vec2 fragCoord ) 314 | { 315 | vec2 uv = (fragCoord-.5*iResolution.xy)/iResolution.y; 316 | vec2 mouseUV = iMouse.xy/iResolution.xy; 317 | uv = vec2(uv.x, 1. - uv.y); 318 | mouseUV = vec2(mouseUV.x, 1. - mouseUV.y); 319 | 320 | if (iMouse.xy == vec2(1.0)) 321 | mouseUV = vec2(0.6, 0.3); // trick to center mouse on page load 322 | 323 | vec3 col = vec3(0.); 324 | vec3 lp = vec3(0., -16., 0.); 325 | vec3 ro = vec3(-15., 3., 2.); // ray origin that represents camera position 326 | 327 | float cameraRadius = 2.; 328 | ro.yz = ro.yz * cameraRadius * rotate2d(mix(-PI/2., PI/2., mouseUV.y)); 329 | ro.xz = ro.xz * rotate2d(mix(-PI, PI, mouseUV.x)) + vec2(lp.x, lp.z); 330 | 331 | vec3 rd = camera(ro, lp) * normalize(vec3(uv, -1.)); // ray direction 332 | 333 | vec4 d = rayMarch(ro, rd); // .yzw color .x signed distance value to closest object 334 | 335 | if (d.x > MAX_DIST) { 336 | col = COLOR_BACKGROUND; // ray didn't hit anything 337 | } else { 338 | vec3 p = ro + rd * d.x; // point discovered from ray marching 339 | vec3 normal = calcNormal(p); // surface normal 340 | 341 | vec3 lightPosition = vec3(0., 5., 2.); 342 | vec3 lightDirection = normalize(lightPosition - p) * .65; // The 0.65 is used to decrease the light intensity a bit 343 | 344 | float dif = clamp(dot(normal, lightDirection), 0., 1.) * 0.5 + 0.5; // diffuse reflection mapped to values between 0.5 and 1.0 345 | 346 | col = dif * d.yzw + COLOR_AMBIENT; 347 | 348 | } 349 | 350 | fragColor = vec4(col, 1.0); 351 | } 352 | // ------ END SHADERTOY CODE ----- 353 | 354 | 355 | 356 | #include -------------------------------------------------------------------------------- /example/assets/shaders/test_isself_buffer_a.frag: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | 4 | uniform float R; 5 | uniform float G; 6 | uniform float B; 7 | 8 | void mainImage( out vec4 fragColor, in vec2 fragCoord ) 9 | { 10 | vec2 uv = fragCoord/iResolution.xy; 11 | vec4 col; 12 | float radius = 50.; 13 | 14 | float dist = clamp(0., 60., 60. / distance(iMouse.xy, fragCoord)); 15 | col = vec4(0., 0., 0., 0.); 16 | if (dist < radius) 17 | col = vec4(R * dist, G * dist, B * dist, 1.); 18 | 19 | // vec2 from = uv-vec2(sin(iTime) * 0.1, cos(iTime) * 0.1); 20 | // vec4 col2 = texture(iChannel0, from) * 0.8; 21 | 22 | // fragColor = col + col2; 23 | fragColor = col; 24 | } 25 | 26 | 27 | 28 | #include 29 | 30 | -------------------------------------------------------------------------------- /example/assets/shaders/test_isself_main.frag: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | uniform sampler2D iChannel0; 4 | 5 | 6 | 7 | // ------ START SHADERTOY CODE ----- 8 | void mainImage( out vec4 fragColor, in vec2 fragCoord ) 9 | { 10 | // Normalized pixel coordinates (from 0 to 1) 11 | vec2 uv = fragCoord/iResolution.xy; 12 | 13 | // Time varying pixel color 14 | vec4 col = texture(iChannel0, uv); 15 | fragColor = col; 16 | } 17 | // ------ END SHADERTOY CODE ----- 18 | 19 | 20 | 21 | #include -------------------------------------------------------------------------------- /example/assets/shaders/water.frag: -------------------------------------------------------------------------------- 1 | #include 2 | 3 | uniform sampler2D iChannel0; 4 | 5 | 6 | 7 | // credits: 8 | // https://www.shadertoy.com/view/Mls3DH 9 | 10 | // ------ START SHADERTOY CODE ----- 11 | uniform float speed; // 0.6 12 | uniform float frequency; // 8.0 13 | uniform float amplitude; // 1.0 14 | 15 | 16 | // [2TC 15] Water2D 17 | // Copyleft {c} 2015 Michael Pohoreski 18 | // Chars: 260 19 | // 20 | // Notes: 21 | // - If you want to speed up / slow this down, change the contant in `d` iTime*0.2 22 | // 23 | // - A "naive" water filter is: 24 | // #define F cos(x)*cos(y),sin(x)*sin(y) 25 | // We use this one: 26 | // #define F cos(x-y)*cos(y),sin(x+y)*sin(y) 27 | // Feel free to post your suggestions! 28 | // 29 | // For uber minification, 30 | // - You can replace: 31 | // 2.0 / uvResolution.x 32 | // With say a hard-coded constant: 33 | // 0.007 34 | // Inline the #define 35 | 36 | // Minified 37 | 38 | #if 0 39 | 40 | #define F cos(x-y)*cos(y),sin(x+y)*sin(y) 41 | vec2 s(vec2 p){float d=iTime*0.2,x=8.*(p.x+d),y=8.*(p.y+d);return vec2(F);} 42 | void mainImage( out vec4 f, in vec2 w ){vec2 i=iResolution.xy,r=w/i,q=r+2./iResolution.x*(s(r)-s(r+i));q.y=1.-q.y;f=texture(iChannel0,q);} 43 | 44 | 45 | #else 46 | // Cleaned up Source 47 | 48 | vec2 shift( vec2 p ) { 49 | float d = iTime*speed; 50 | vec2 f = frequency * (p + d); 51 | vec2 q = cos( vec2( 52 | cos(f.x-f.y)*cos(f.y), 53 | sin(f.x+f.y)*sin(f.y) ) ); 54 | return q; 55 | } 56 | 57 | void mainImage( out vec4 fragColor, in vec2 fragCoord ) { 58 | vec2 r = fragCoord.xy / iResolution.xy; 59 | vec2 p = shift( r ); 60 | vec2 q = shift(r + 1.0); 61 | float amp = amplitude * 60.0 / iResolution.x; 62 | vec2 s = r + amp * (p - q); 63 | s.y = 1. - s.y; // flip Y axis for ShaderToy 64 | fragColor = texture( iChannel0, s ); 65 | } 66 | #endif 67 | 68 | 69 | 70 | 71 | void main() { 72 | // Shader compiler optimizations will remove unusued uniforms. 73 | // Since [LayerBuffer.computeLayer] needs to always set these uniforms, when 74 | // this happens, an error occurs when calling setFloat() 75 | // `IndexError (RangeError (index): Index out of range: index should be less than 3: 3)` 76 | // With the following line, the compiler will not remove unusued 77 | float tmp = (iFrame/iFrame) * (iMouse.x/iMouse.x) * 78 | (iTime/iTime) * (iResolution.x/iResolution.x); 79 | if (tmp != 1.) tmp = 1.; 80 | 81 | mainImage( fragColor, FlutterFragCoord().xy * tmp ); 82 | } -------------------------------------------------------------------------------- /example/example.md: -------------------------------------------------------------------------------- 1 | import 'package:flutter/material.dart'; 2 | import 'package:shader_buffers/shader_buffers.dart'; 3 | 4 | void main() { 5 | runApp(MainApp()); 6 | } 7 | 8 | class MainApp extends StatelessWidget { 9 | MainApp({super.key}); 10 | 11 | @override 12 | Widget build(BuildContext context) { 13 | final controller = ShaderController(); 14 | final mainLayer = LayerBuffer( 15 | shaderAssetsName: 'assets/shaders/mouse2.frag', 16 | ); 17 | return MaterialApp( 18 | themeMode: ThemeMode.dark, 19 | darkTheme: ThemeData.dark(useMaterial3: true), 20 | theme: ThemeData(scaffoldBackgroundColor: Colors.black), 21 | home: Scaffold( 22 | body: Padding( 23 | padding: const EdgeInsets.all(16), 24 | child: ShaderBuffers( 25 | controller: controller, 26 | // width: 350, 27 | // height: 200, 28 | mainImage: mainLayer, 29 | startPaused: false, 30 | ), 31 | ), 32 | ), 33 | ); 34 | } 35 | } 36 | -------------------------------------------------------------------------------- /example/ios/.gitignore: -------------------------------------------------------------------------------- 1 | **/dgph 2 | *.mode1v3 3 | *.mode2v3 4 | *.moved-aside 5 | *.pbxuser 6 | *.perspectivev3 7 | **/*sync/ 8 | .sconsign.dblite 9 | .tags* 10 | **/.vagrant/ 11 | **/DerivedData/ 12 | Icon? 13 | **/Pods/ 14 | **/.symlinks/ 15 | profile 16 | xcuserdata 17 | **/.generated/ 18 | Flutter/App.framework 19 | Flutter/Flutter.framework 20 | Flutter/Flutter.podspec 21 | Flutter/Generated.xcconfig 22 | Flutter/ephemeral/ 23 | Flutter/app.flx 24 | Flutter/app.zip 25 | Flutter/flutter_assets/ 26 | Flutter/flutter_export_environment.sh 27 | ServiceDefinitions.json 28 | Runner/GeneratedPluginRegistrant.* 29 | 30 | # Exceptions to above rules. 31 | !default.mode1v3 32 | !default.mode2v3 33 | !default.pbxuser 34 | !default.perspectivev3 35 | -------------------------------------------------------------------------------- /example/ios/Flutter/AppFrameworkInfo.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | App 9 | CFBundleIdentifier 10 | io.flutter.flutter.app 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | App 15 | CFBundlePackageType 16 | FMWK 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleSignature 20 | ???? 21 | CFBundleVersion 22 | 1.0 23 | MinimumOSVersion 24 | 11.0 25 | 26 | 27 | -------------------------------------------------------------------------------- /example/ios/Flutter/Debug.xcconfig: -------------------------------------------------------------------------------- 1 | #include "Generated.xcconfig" 2 | -------------------------------------------------------------------------------- /example/ios/Flutter/Release.xcconfig: -------------------------------------------------------------------------------- 1 | #include "Generated.xcconfig" 2 | -------------------------------------------------------------------------------- /example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | IDEDidComputeMac32BitWarning 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | PreviewsEnabled 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme: -------------------------------------------------------------------------------- 1 | 2 | 5 | 8 | 9 | 15 | 21 | 22 | 23 | 24 | 25 | 30 | 31 | 37 | 38 | 39 | 40 | 43 | 49 | 50 | 51 | 52 | 53 | 63 | 65 | 71 | 72 | 73 | 74 | 80 | 82 | 88 | 89 | 90 | 91 | 93 | 94 | 97 | 98 | 99 | -------------------------------------------------------------------------------- /example/ios/Runner.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | IDEDidComputeMac32BitWarning 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | PreviewsEnabled 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /example/ios/Runner/AppDelegate.swift: -------------------------------------------------------------------------------- 1 | import UIKit 2 | import Flutter 3 | 4 | @UIApplicationMain 5 | @objc class AppDelegate: FlutterAppDelegate { 6 | override func application( 7 | _ application: UIApplication, 8 | didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? 9 | ) -> Bool { 10 | GeneratedPluginRegistrant.register(with: self) 11 | return super.application(application, didFinishLaunchingWithOptions: launchOptions) 12 | } 13 | } 14 | -------------------------------------------------------------------------------- /example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "size" : "20x20", 5 | "idiom" : "iphone", 6 | "filename" : "Icon-App-20x20@2x.png", 7 | "scale" : "2x" 8 | }, 9 | { 10 | "size" : "20x20", 11 | "idiom" : "iphone", 12 | "filename" : "Icon-App-20x20@3x.png", 13 | "scale" : "3x" 14 | }, 15 | { 16 | "size" : "29x29", 17 | "idiom" : "iphone", 18 | "filename" : "Icon-App-29x29@1x.png", 19 | "scale" : "1x" 20 | }, 21 | { 22 | "size" : "29x29", 23 | "idiom" : "iphone", 24 | "filename" : "Icon-App-29x29@2x.png", 25 | "scale" : "2x" 26 | }, 27 | { 28 | "size" : "29x29", 29 | "idiom" : "iphone", 30 | "filename" : "Icon-App-29x29@3x.png", 31 | "scale" : "3x" 32 | }, 33 | { 34 | "size" : "40x40", 35 | "idiom" : "iphone", 36 | "filename" : "Icon-App-40x40@2x.png", 37 | "scale" : "2x" 38 | }, 39 | { 40 | "size" : "40x40", 41 | "idiom" : "iphone", 42 | "filename" : "Icon-App-40x40@3x.png", 43 | "scale" : "3x" 44 | }, 45 | { 46 | "size" : "60x60", 47 | "idiom" : "iphone", 48 | "filename" : "Icon-App-60x60@2x.png", 49 | "scale" : "2x" 50 | }, 51 | { 52 | "size" : "60x60", 53 | "idiom" : "iphone", 54 | "filename" : "Icon-App-60x60@3x.png", 55 | "scale" : "3x" 56 | }, 57 | { 58 | "size" : "20x20", 59 | "idiom" : "ipad", 60 | "filename" : "Icon-App-20x20@1x.png", 61 | "scale" : "1x" 62 | }, 63 | { 64 | "size" : "20x20", 65 | "idiom" : "ipad", 66 | "filename" : "Icon-App-20x20@2x.png", 67 | "scale" : "2x" 68 | }, 69 | { 70 | "size" : "29x29", 71 | "idiom" : "ipad", 72 | "filename" : "Icon-App-29x29@1x.png", 73 | "scale" : "1x" 74 | }, 75 | { 76 | "size" : "29x29", 77 | "idiom" : "ipad", 78 | "filename" : "Icon-App-29x29@2x.png", 79 | "scale" : "2x" 80 | }, 81 | { 82 | "size" : "40x40", 83 | "idiom" : "ipad", 84 | "filename" : "Icon-App-40x40@1x.png", 85 | "scale" : "1x" 86 | }, 87 | { 88 | "size" : "40x40", 89 | "idiom" : "ipad", 90 | "filename" : "Icon-App-40x40@2x.png", 91 | "scale" : "2x" 92 | }, 93 | { 94 | "size" : "76x76", 95 | "idiom" : "ipad", 96 | "filename" : "Icon-App-76x76@1x.png", 97 | "scale" : "1x" 98 | }, 99 | { 100 | "size" : "76x76", 101 | "idiom" : "ipad", 102 | "filename" : "Icon-App-76x76@2x.png", 103 | "scale" : "2x" 104 | }, 105 | { 106 | "size" : "83.5x83.5", 107 | "idiom" : "ipad", 108 | "filename" : "Icon-App-83.5x83.5@2x.png", 109 | "scale" : "2x" 110 | }, 111 | { 112 | "size" : "1024x1024", 113 | "idiom" : "ios-marketing", 114 | "filename" : "Icon-App-1024x1024@1x.png", 115 | "scale" : "1x" 116 | } 117 | ], 118 | "info" : { 119 | "version" : 1, 120 | "author" : "xcode" 121 | } 122 | } 123 | -------------------------------------------------------------------------------- /example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png -------------------------------------------------------------------------------- /example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-20x20@1x.png: -------------------------------------------------------------------------------- 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"LaunchImage@2x.png", 11 | "scale" : "2x" 12 | }, 13 | { 14 | "idiom" : "universal", 15 | "filename" : "LaunchImage@3x.png", 16 | "scale" : "3x" 17 | } 18 | ], 19 | "info" : { 20 | "version" : 1, 21 | "author" : "xcode" 22 | } 23 | } 24 | -------------------------------------------------------------------------------- /example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png -------------------------------------------------------------------------------- /example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png: -------------------------------------------------------------------------------- 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your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images. -------------------------------------------------------------------------------- /example/ios/Runner/Base.lproj/LaunchScreen.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | -------------------------------------------------------------------------------- /example/ios/Runner/Base.lproj/Main.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | -------------------------------------------------------------------------------- /example/ios/Runner/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | $(DEVELOPMENT_LANGUAGE) 7 | CFBundleDisplayName 8 | Example 9 | CFBundleExecutable 10 | $(EXECUTABLE_NAME) 11 | CFBundleIdentifier 12 | $(PRODUCT_BUNDLE_IDENTIFIER) 13 | CFBundleInfoDictionaryVersion 14 | 6.0 15 | CFBundleName 16 | example 17 | CFBundlePackageType 18 | APPL 19 | CFBundleShortVersionString 20 | $(FLUTTER_BUILD_NAME) 21 | CFBundleSignature 22 | ???? 23 | CFBundleVersion 24 | $(FLUTTER_BUILD_NUMBER) 25 | LSRequiresIPhoneOS 26 | 27 | UILaunchStoryboardName 28 | LaunchScreen 29 | UIMainStoryboardFile 30 | Main 31 | UISupportedInterfaceOrientations 32 | 33 | UIInterfaceOrientationPortrait 34 | UIInterfaceOrientationLandscapeLeft 35 | UIInterfaceOrientationLandscapeRight 36 | 37 | UISupportedInterfaceOrientations~ipad 38 | 39 | UIInterfaceOrientationPortrait 40 | UIInterfaceOrientationPortraitUpsideDown 41 | UIInterfaceOrientationLandscapeLeft 42 | UIInterfaceOrientationLandscapeRight 43 | 44 | CADisableMinimumFrameDurationOnPhone 45 | 46 | UIApplicationSupportsIndirectInputEvents 47 | 48 | 49 | 50 | -------------------------------------------------------------------------------- /example/ios/Runner/Runner-Bridging-Header.h: -------------------------------------------------------------------------------- 1 | #import "GeneratedPluginRegistrant.h" 2 | -------------------------------------------------------------------------------- /example/ios/RunnerTests/RunnerTests.swift: -------------------------------------------------------------------------------- 1 | import Flutter 2 | import UIKit 3 | import XCTest 4 | 5 | class RunnerTests: XCTestCase { 6 | 7 | func testExample() { 8 | // If you add code to the Runner application, consider adding tests here. 9 | // See https://developer.apple.com/documentation/xctest for more information about using XCTest. 10 | } 11 | 12 | } 13 | -------------------------------------------------------------------------------- /example/lib/simple_layers.dart: -------------------------------------------------------------------------------- 1 | // ignore_for_file: avoid_multiple_declarations_per_line, public_member_api_docs 2 | 3 | import 'package:flutter/material.dart'; 4 | import 'package:shader_buffers/shader_buffers.dart'; 5 | 6 | /// Code to demostrate the use of multiple image filter fragment shaders 7 | /// to apply in sequence to a single image. Something like this: 8 | /// https://github.com/alnitak/shader_buffers?tab=readme-ov-file#layering-shaders 9 | /// 10 | /// Please, read the comments of fragment source code 11 | /// located in `assets/shaders/filters` and the documentation 12 | /// for writing a fragment shader 13 | /// https://github.com/alnitak/shader_buffers?tab=readme-ov-file#writing-a-fragment-shader 14 | 15 | void main() { 16 | runApp(const MainApp()); 17 | } 18 | 19 | class MainApp extends StatefulWidget { 20 | const MainApp({super.key}); 21 | 22 | @override 23 | State createState() => _MainAppState(); 24 | } 25 | 26 | class _MainAppState extends State { 27 | /// the shader controller 28 | late ShaderController controller; 29 | 30 | /// the buffers used here 31 | late LayerBuffer mainImage, bufferA; 32 | 33 | /// the control sliders for uniforms 34 | late ValueNotifier valueWhite, valueBlack; 35 | 36 | @override 37 | void initState() { 38 | super.initState(); 39 | 40 | controller = ShaderController(); 41 | valueWhite = ValueNotifier(0); 42 | valueBlack = ValueNotifier(0); 43 | 44 | /// initialize the mandatory [layerBuffer] and its uniforms 45 | mainImage = LayerBuffer( 46 | shaderAssetsName: 'assets/shaders/filters/black.frag', 47 | uniforms: Uniforms( 48 | [ 49 | Uniform( 50 | value: 0, 51 | name: 'value', 52 | range: const RangeValues(0, 255), 53 | defaultValue: 0, 54 | ), 55 | ], 56 | ), 57 | ); 58 | 59 | /// initialize the second buffer and its uniforms 60 | bufferA = LayerBuffer( 61 | shaderAssetsName: 'assets/shaders/filters/white.frag', 62 | uniforms: Uniforms( 63 | [ 64 | Uniform( 65 | value: 0, 66 | name: 'value', 67 | range: const RangeValues(0, 255), 68 | defaultValue: 0, 69 | ), 70 | ], 71 | ), 72 | ); 73 | 74 | /// tells the main layer to use the [bufferA] output as a texture uniform 75 | mainImage.setChannels([IChannel(buffer: bufferA)]); 76 | 77 | /// tells the first layer to use an image as a texture uniform 78 | bufferA.setChannels([IChannel(assetsTexturePath: 'assets/flutter.png')]); 79 | } 80 | 81 | @override 82 | Widget build(BuildContext context) { 83 | return MaterialApp( 84 | home: Scaffold( 85 | body: Column( 86 | children: [ 87 | ValueListenableBuilder( 88 | valueListenable: valueWhite, 89 | builder: (_, v, __) { 90 | return Slider( 91 | value: v, 92 | max: 255, 93 | onChanged: (sliderValue) { 94 | mainImage.uniforms!.uniforms.first.value = sliderValue; 95 | valueWhite.value = sliderValue; 96 | }, 97 | ); 98 | }, 99 | ), 100 | ValueListenableBuilder( 101 | valueListenable: valueBlack, 102 | builder: (_, v, __) { 103 | return Slider( 104 | value: v, 105 | max: 255, 106 | onChanged: (sliderValue) { 107 | bufferA.uniforms!.uniforms.first.value = sliderValue; 108 | valueBlack.value = sliderValue; 109 | }, 110 | ); 111 | }, 112 | ), 113 | Expanded( 114 | child: ShaderBuffers( 115 | controller: controller, 116 | mainImage: mainImage, 117 | buffers: [bufferA], 118 | ), 119 | ), 120 | ], 121 | ), 122 | ), 123 | ); 124 | } 125 | } 126 | -------------------------------------------------------------------------------- /example/linux/.gitignore: -------------------------------------------------------------------------------- 1 | flutter/ephemeral 2 | -------------------------------------------------------------------------------- /example/linux/CMakeLists.txt: -------------------------------------------------------------------------------- 1 | # Project-level configuration. 2 | cmake_minimum_required(VERSION 3.10) 3 | project(runner LANGUAGES CXX) 4 | 5 | # The name of the executable created for the application. Change this to change 6 | # the on-disk name of your application. 7 | set(BINARY_NAME "example") 8 | # The unique GTK application identifier for this application. See: 9 | # https://wiki.gnome.org/HowDoI/ChooseApplicationID 10 | set(APPLICATION_ID "com.example.example") 11 | 12 | # Explicitly opt in to modern CMake behaviors to avoid warnings with recent 13 | # versions of CMake. 14 | cmake_policy(SET CMP0063 NEW) 15 | 16 | # Load bundled libraries from the lib/ directory relative to the binary. 17 | set(CMAKE_INSTALL_RPATH "$ORIGIN/lib") 18 | 19 | # Root filesystem for cross-building. 20 | if(FLUTTER_TARGET_PLATFORM_SYSROOT) 21 | set(CMAKE_SYSROOT ${FLUTTER_TARGET_PLATFORM_SYSROOT}) 22 | set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT}) 23 | set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) 24 | set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY) 25 | set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) 26 | set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) 27 | endif() 28 | 29 | # Define build configuration options. 30 | if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES) 31 | set(CMAKE_BUILD_TYPE "Debug" CACHE 32 | STRING "Flutter build mode" FORCE) 33 | set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS 34 | "Debug" "Profile" "Release") 35 | endif() 36 | 37 | # Compilation settings that should be applied to most targets. 38 | # 39 | # Be cautious about adding new options here, as plugins use this function by 40 | # default. In most cases, you should add new options to specific targets instead 41 | # of modifying this function. 42 | function(APPLY_STANDARD_SETTINGS TARGET) 43 | target_compile_features(${TARGET} PUBLIC cxx_std_14) 44 | target_compile_options(${TARGET} PRIVATE -Wall -Werror) 45 | target_compile_options(${TARGET} PRIVATE "$<$>:-O3>") 46 | target_compile_definitions(${TARGET} PRIVATE "$<$>:NDEBUG>") 47 | endfunction() 48 | 49 | # Flutter library and tool build rules. 50 | set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter") 51 | add_subdirectory(${FLUTTER_MANAGED_DIR}) 52 | 53 | # System-level dependencies. 54 | find_package(PkgConfig REQUIRED) 55 | pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0) 56 | 57 | add_definitions(-DAPPLICATION_ID="${APPLICATION_ID}") 58 | 59 | # Define the application target. To change its name, change BINARY_NAME above, 60 | # not the value here, or `flutter run` will no longer work. 61 | # 62 | # Any new source files that you add to the application should be added here. 63 | add_executable(${BINARY_NAME} 64 | "main.cc" 65 | "my_application.cc" 66 | "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc" 67 | ) 68 | 69 | # Apply the standard set of build settings. This can be removed for applications 70 | # that need different build settings. 71 | apply_standard_settings(${BINARY_NAME}) 72 | 73 | # Add dependency libraries. Add any application-specific dependencies here. 74 | target_link_libraries(${BINARY_NAME} PRIVATE flutter) 75 | target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::GTK) 76 | 77 | # Run the Flutter tool portions of the build. This must not be removed. 78 | add_dependencies(${BINARY_NAME} flutter_assemble) 79 | 80 | # Only the install-generated bundle's copy of the executable will launch 81 | # correctly, since the resources must in the right relative locations. To avoid 82 | # people trying to run the unbundled copy, put it in a subdirectory instead of 83 | # the default top-level location. 84 | set_target_properties(${BINARY_NAME} 85 | PROPERTIES 86 | RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/intermediates_do_not_run" 87 | ) 88 | 89 | 90 | # Generated plugin build rules, which manage building the plugins and adding 91 | # them to the application. 92 | include(flutter/generated_plugins.cmake) 93 | 94 | 95 | # === Installation === 96 | # By default, "installing" just makes a relocatable bundle in the build 97 | # directory. 98 | set(BUILD_BUNDLE_DIR "${PROJECT_BINARY_DIR}/bundle") 99 | if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT) 100 | set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE) 101 | endif() 102 | 103 | # Start with a clean build bundle directory every time. 104 | install(CODE " 105 | file(REMOVE_RECURSE \"${BUILD_BUNDLE_DIR}/\") 106 | " COMPONENT Runtime) 107 | 108 | set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data") 109 | set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib") 110 | 111 | install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}" 112 | COMPONENT Runtime) 113 | 114 | install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" 115 | COMPONENT Runtime) 116 | 117 | install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}" 118 | COMPONENT Runtime) 119 | 120 | foreach(bundled_library ${PLUGIN_BUNDLED_LIBRARIES}) 121 | install(FILES "${bundled_library}" 122 | DESTINATION "${INSTALL_BUNDLE_LIB_DIR}" 123 | COMPONENT Runtime) 124 | endforeach(bundled_library) 125 | 126 | # Fully re-copy the assets directory on each build to avoid having stale files 127 | # from a previous install. 128 | set(FLUTTER_ASSET_DIR_NAME "flutter_assets") 129 | install(CODE " 130 | file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\") 131 | " COMPONENT Runtime) 132 | install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}" 133 | DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime) 134 | 135 | # Install the AOT library on non-Debug builds only. 136 | if(NOT CMAKE_BUILD_TYPE MATCHES "Debug") 137 | install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}" 138 | COMPONENT Runtime) 139 | endif() 140 | -------------------------------------------------------------------------------- /example/linux/flutter/CMakeLists.txt: -------------------------------------------------------------------------------- 1 | # This file controls Flutter-level build steps. It should not be edited. 2 | cmake_minimum_required(VERSION 3.10) 3 | 4 | set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral") 5 | 6 | # Configuration provided via flutter tool. 7 | include(${EPHEMERAL_DIR}/generated_config.cmake) 8 | 9 | # TODO: Move the rest of this into files in ephemeral. See 10 | # https://github.com/flutter/flutter/issues/57146. 11 | 12 | # Serves the same purpose as list(TRANSFORM ... PREPEND ...), 13 | # which isn't available in 3.10. 14 | function(list_prepend LIST_NAME PREFIX) 15 | set(NEW_LIST "") 16 | foreach(element ${${LIST_NAME}}) 17 | list(APPEND NEW_LIST "${PREFIX}${element}") 18 | endforeach(element) 19 | set(${LIST_NAME} "${NEW_LIST}" PARENT_SCOPE) 20 | endfunction() 21 | 22 | # === Flutter Library === 23 | # System-level dependencies. 24 | find_package(PkgConfig REQUIRED) 25 | pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0) 26 | pkg_check_modules(GLIB REQUIRED IMPORTED_TARGET glib-2.0) 27 | pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0) 28 | 29 | set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/libflutter_linux_gtk.so") 30 | 31 | # Published to parent scope for install step. 32 | set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE) 33 | set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE) 34 | set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE) 35 | set(AOT_LIBRARY "${PROJECT_DIR}/build/lib/libapp.so" PARENT_SCOPE) 36 | 37 | list(APPEND FLUTTER_LIBRARY_HEADERS 38 | "fl_basic_message_channel.h" 39 | "fl_binary_codec.h" 40 | "fl_binary_messenger.h" 41 | "fl_dart_project.h" 42 | "fl_engine.h" 43 | "fl_json_message_codec.h" 44 | "fl_json_method_codec.h" 45 | "fl_message_codec.h" 46 | "fl_method_call.h" 47 | "fl_method_channel.h" 48 | "fl_method_codec.h" 49 | "fl_method_response.h" 50 | "fl_plugin_registrar.h" 51 | "fl_plugin_registry.h" 52 | "fl_standard_message_codec.h" 53 | "fl_standard_method_codec.h" 54 | "fl_string_codec.h" 55 | "fl_value.h" 56 | "fl_view.h" 57 | "flutter_linux.h" 58 | ) 59 | list_prepend(FLUTTER_LIBRARY_HEADERS "${EPHEMERAL_DIR}/flutter_linux/") 60 | add_library(flutter INTERFACE) 61 | target_include_directories(flutter INTERFACE 62 | "${EPHEMERAL_DIR}" 63 | ) 64 | target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}") 65 | target_link_libraries(flutter INTERFACE 66 | PkgConfig::GTK 67 | PkgConfig::GLIB 68 | PkgConfig::GIO 69 | ) 70 | add_dependencies(flutter flutter_assemble) 71 | 72 | # === Flutter tool backend === 73 | # _phony_ is a non-existent file to force this command to run every time, 74 | # since currently there's no way to get a full input/output list from the 75 | # flutter tool. 76 | add_custom_command( 77 | OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS} 78 | ${CMAKE_CURRENT_BINARY_DIR}/_phony_ 79 | COMMAND ${CMAKE_COMMAND} -E env 80 | ${FLUTTER_TOOL_ENVIRONMENT} 81 | "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.sh" 82 | ${FLUTTER_TARGET_PLATFORM} ${CMAKE_BUILD_TYPE} 83 | VERBATIM 84 | ) 85 | add_custom_target(flutter_assemble DEPENDS 86 | "${FLUTTER_LIBRARY}" 87 | ${FLUTTER_LIBRARY_HEADERS} 88 | ) 89 | -------------------------------------------------------------------------------- /example/linux/flutter/generated_plugin_registrant.cc: -------------------------------------------------------------------------------- 1 | // 2 | // Generated file. Do not edit. 3 | // 4 | 5 | // clang-format off 6 | 7 | #include "generated_plugin_registrant.h" 8 | 9 | 10 | void fl_register_plugins(FlPluginRegistry* registry) { 11 | } 12 | -------------------------------------------------------------------------------- /example/linux/flutter/generated_plugin_registrant.h: -------------------------------------------------------------------------------- 1 | // 2 | // Generated file. Do not edit. 3 | // 4 | 5 | // clang-format off 6 | 7 | #ifndef GENERATED_PLUGIN_REGISTRANT_ 8 | #define GENERATED_PLUGIN_REGISTRANT_ 9 | 10 | #include 11 | 12 | // Registers Flutter plugins. 13 | void fl_register_plugins(FlPluginRegistry* registry); 14 | 15 | #endif // GENERATED_PLUGIN_REGISTRANT_ 16 | -------------------------------------------------------------------------------- /example/linux/flutter/generated_plugins.cmake: -------------------------------------------------------------------------------- 1 | # 2 | # Generated file, do not edit. 3 | # 4 | 5 | list(APPEND FLUTTER_PLUGIN_LIST 6 | ) 7 | 8 | list(APPEND FLUTTER_FFI_PLUGIN_LIST 9 | ) 10 | 11 | set(PLUGIN_BUNDLED_LIBRARIES) 12 | 13 | foreach(plugin ${FLUTTER_PLUGIN_LIST}) 14 | add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/linux plugins/${plugin}) 15 | target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin) 16 | list(APPEND PLUGIN_BUNDLED_LIBRARIES $) 17 | list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries}) 18 | endforeach(plugin) 19 | 20 | foreach(ffi_plugin ${FLUTTER_FFI_PLUGIN_LIST}) 21 | add_subdirectory(flutter/ephemeral/.plugin_symlinks/${ffi_plugin}/linux plugins/${ffi_plugin}) 22 | list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${ffi_plugin}_bundled_libraries}) 23 | endforeach(ffi_plugin) 24 | -------------------------------------------------------------------------------- /example/linux/main.cc: -------------------------------------------------------------------------------- 1 | #include "my_application.h" 2 | 3 | int main(int argc, char** argv) { 4 | g_autoptr(MyApplication) app = my_application_new(); 5 | return g_application_run(G_APPLICATION(app), argc, argv); 6 | } 7 | -------------------------------------------------------------------------------- /example/linux/my_application.cc: -------------------------------------------------------------------------------- 1 | #include "my_application.h" 2 | 3 | #include 4 | #ifdef GDK_WINDOWING_X11 5 | #include 6 | #endif 7 | 8 | #include "flutter/generated_plugin_registrant.h" 9 | 10 | struct _MyApplication { 11 | GtkApplication parent_instance; 12 | char** dart_entrypoint_arguments; 13 | }; 14 | 15 | G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION) 16 | 17 | // Implements GApplication::activate. 18 | static void my_application_activate(GApplication* application) { 19 | MyApplication* self = MY_APPLICATION(application); 20 | GtkWindow* window = 21 | GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application))); 22 | 23 | // Use a header bar when running in GNOME as this is the common style used 24 | // by applications and is the setup most users will be using (e.g. Ubuntu 25 | // desktop). 26 | // If running on X and not using GNOME then just use a traditional title bar 27 | // in case the window manager does more exotic layout, e.g. tiling. 28 | // If running on Wayland assume the header bar will work (may need changing 29 | // if future cases occur). 30 | gboolean use_header_bar = TRUE; 31 | #ifdef GDK_WINDOWING_X11 32 | GdkScreen* screen = gtk_window_get_screen(window); 33 | if (GDK_IS_X11_SCREEN(screen)) { 34 | const gchar* wm_name = gdk_x11_screen_get_window_manager_name(screen); 35 | if (g_strcmp0(wm_name, "GNOME Shell") != 0) { 36 | use_header_bar = FALSE; 37 | } 38 | } 39 | #endif 40 | if (use_header_bar) { 41 | GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new()); 42 | gtk_widget_show(GTK_WIDGET(header_bar)); 43 | gtk_header_bar_set_title(header_bar, "example"); 44 | gtk_header_bar_set_show_close_button(header_bar, TRUE); 45 | gtk_window_set_titlebar(window, GTK_WIDGET(header_bar)); 46 | } else { 47 | gtk_window_set_title(window, "example"); 48 | } 49 | 50 | gtk_window_set_default_size(window, 550, 650); 51 | gtk_widget_show(GTK_WIDGET(window)); 52 | 53 | g_autoptr(FlDartProject) project = fl_dart_project_new(); 54 | fl_dart_project_set_dart_entrypoint_arguments(project, self->dart_entrypoint_arguments); 55 | 56 | FlView* view = fl_view_new(project); 57 | gtk_widget_show(GTK_WIDGET(view)); 58 | gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view)); 59 | 60 | fl_register_plugins(FL_PLUGIN_REGISTRY(view)); 61 | 62 | gtk_widget_grab_focus(GTK_WIDGET(view)); 63 | } 64 | 65 | // Implements GApplication::local_command_line. 66 | static gboolean my_application_local_command_line(GApplication* application, gchar*** arguments, int* exit_status) { 67 | MyApplication* self = MY_APPLICATION(application); 68 | // Strip out the first argument as it is the binary name. 69 | self->dart_entrypoint_arguments = g_strdupv(*arguments + 1); 70 | 71 | g_autoptr(GError) error = nullptr; 72 | if (!g_application_register(application, nullptr, &error)) { 73 | g_warning("Failed to register: %s", error->message); 74 | *exit_status = 1; 75 | return TRUE; 76 | } 77 | 78 | g_application_activate(application); 79 | *exit_status = 0; 80 | 81 | return TRUE; 82 | } 83 | 84 | // Implements GObject::dispose. 85 | static void my_application_dispose(GObject* object) { 86 | MyApplication* self = MY_APPLICATION(object); 87 | g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev); 88 | G_OBJECT_CLASS(my_application_parent_class)->dispose(object); 89 | } 90 | 91 | static void my_application_class_init(MyApplicationClass* klass) { 92 | G_APPLICATION_CLASS(klass)->activate = my_application_activate; 93 | G_APPLICATION_CLASS(klass)->local_command_line = my_application_local_command_line; 94 | G_OBJECT_CLASS(klass)->dispose = my_application_dispose; 95 | } 96 | 97 | static void my_application_init(MyApplication* self) {} 98 | 99 | MyApplication* my_application_new() { 100 | return MY_APPLICATION(g_object_new(my_application_get_type(), 101 | "application-id", APPLICATION_ID, 102 | "flags", G_APPLICATION_NON_UNIQUE, 103 | nullptr)); 104 | } 105 | -------------------------------------------------------------------------------- /example/linux/my_application.h: -------------------------------------------------------------------------------- 1 | #ifndef FLUTTER_MY_APPLICATION_H_ 2 | #define FLUTTER_MY_APPLICATION_H_ 3 | 4 | #include 5 | 6 | G_DECLARE_FINAL_TYPE(MyApplication, my_application, MY, APPLICATION, 7 | GtkApplication) 8 | 9 | /** 10 | * my_application_new: 11 | * 12 | * Creates a new Flutter-based application. 13 | * 14 | * Returns: a new #MyApplication. 15 | */ 16 | MyApplication* my_application_new(); 17 | 18 | #endif // FLUTTER_MY_APPLICATION_H_ 19 | -------------------------------------------------------------------------------- /example/macos/.gitignore: -------------------------------------------------------------------------------- 1 | # Flutter-related 2 | **/Flutter/ephemeral/ 3 | **/Pods/ 4 | 5 | # Xcode-related 6 | **/dgph 7 | **/xcuserdata/ 8 | -------------------------------------------------------------------------------- /example/macos/Flutter/Flutter-Debug.xcconfig: -------------------------------------------------------------------------------- 1 | #include "ephemeral/Flutter-Generated.xcconfig" 2 | -------------------------------------------------------------------------------- /example/macos/Flutter/Flutter-Release.xcconfig: -------------------------------------------------------------------------------- 1 | #include "ephemeral/Flutter-Generated.xcconfig" 2 | -------------------------------------------------------------------------------- /example/macos/Flutter/GeneratedPluginRegistrant.swift: -------------------------------------------------------------------------------- 1 | // 2 | // Generated file. Do not edit. 3 | // 4 | 5 | import FlutterMacOS 6 | import Foundation 7 | 8 | 9 | func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) { 10 | } 11 | -------------------------------------------------------------------------------- /example/macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | IDEDidComputeMac32BitWarning 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /example/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme: -------------------------------------------------------------------------------- 1 | 2 | 5 | 8 | 9 | 15 | 21 | 22 | 23 | 24 | 25 | 30 | 31 | 37 | 38 | 39 | 40 | 43 | 49 | 50 | 51 | 52 | 53 | 63 | 65 | 71 | 72 | 73 | 74 | 80 | 82 | 88 | 89 | 90 | 91 | 93 | 94 | 97 | 98 | 99 | -------------------------------------------------------------------------------- /example/macos/Runner.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /example/macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | IDEDidComputeMac32BitWarning 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /example/macos/Runner/AppDelegate.swift: -------------------------------------------------------------------------------- 1 | import Cocoa 2 | import FlutterMacOS 3 | 4 | @NSApplicationMain 5 | class AppDelegate: FlutterAppDelegate { 6 | override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool { 7 | return true 8 | } 9 | } 10 | -------------------------------------------------------------------------------- /example/macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "size" : "16x16", 5 | "idiom" : "mac", 6 | "filename" : "app_icon_16.png", 7 | "scale" : "1x" 8 | }, 9 | { 10 | "size" : "16x16", 11 | "idiom" : "mac", 12 | "filename" : "app_icon_32.png", 13 | "scale" : "2x" 14 | }, 15 | { 16 | "size" : "32x32", 17 | "idiom" : "mac", 18 | "filename" : "app_icon_32.png", 19 | "scale" : "1x" 20 | }, 21 | { 22 | "size" : "32x32", 23 | "idiom" : "mac", 24 | "filename" : "app_icon_64.png", 25 | "scale" : "2x" 26 | }, 27 | { 28 | "size" : "128x128", 29 | "idiom" : "mac", 30 | "filename" : "app_icon_128.png", 31 | "scale" : "1x" 32 | }, 33 | { 34 | "size" : "128x128", 35 | "idiom" : "mac", 36 | "filename" : "app_icon_256.png", 37 | "scale" : "2x" 38 | }, 39 | { 40 | "size" : "256x256", 41 | "idiom" : "mac", 42 | "filename" : "app_icon_256.png", 43 | "scale" : "1x" 44 | }, 45 | { 46 | "size" : "256x256", 47 | "idiom" : "mac", 48 | "filename" : "app_icon_512.png", 49 | "scale" : "2x" 50 | }, 51 | { 52 | "size" : "512x512", 53 | "idiom" : "mac", 54 | "filename" : "app_icon_512.png", 55 | "scale" : "1x" 56 | }, 57 | { 58 | "size" : "512x512", 59 | "idiom" : "mac", 60 | "filename" : "app_icon_1024.png", 61 | "scale" : "2x" 62 | } 63 | ], 64 | "info" : { 65 | "version" : 1, 66 | "author" : "xcode" 67 | } 68 | } 69 | -------------------------------------------------------------------------------- /example/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_1024.png -------------------------------------------------------------------------------- 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-------------------------------------------------------------------------------- /example/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/macos/Runner/Assets.xcassets/AppIcon.appiconset/app_icon_64.png -------------------------------------------------------------------------------- /example/macos/Runner/Configs/AppInfo.xcconfig: -------------------------------------------------------------------------------- 1 | // Application-level settings for the Runner target. 2 | // 3 | // This may be replaced with something auto-generated from metadata (e.g., pubspec.yaml) in the 4 | // future. If not, the values below would default to using the project name when this becomes a 5 | // 'flutter create' template. 6 | 7 | // The application's name. By default this is also the title of the Flutter window. 8 | PRODUCT_NAME = example 9 | 10 | // The application's bundle identifier 11 | PRODUCT_BUNDLE_IDENTIFIER = com.example.example 12 | 13 | // The copyright displayed in application information 14 | PRODUCT_COPYRIGHT = Copyright © 2023 com.example. All rights reserved. 15 | -------------------------------------------------------------------------------- /example/macos/Runner/Configs/Debug.xcconfig: -------------------------------------------------------------------------------- 1 | #include "../../Flutter/Flutter-Debug.xcconfig" 2 | #include "Warnings.xcconfig" 3 | -------------------------------------------------------------------------------- /example/macos/Runner/Configs/Release.xcconfig: -------------------------------------------------------------------------------- 1 | #include "../../Flutter/Flutter-Release.xcconfig" 2 | #include "Warnings.xcconfig" 3 | -------------------------------------------------------------------------------- /example/macos/Runner/Configs/Warnings.xcconfig: -------------------------------------------------------------------------------- 1 | WARNING_CFLAGS = -Wall -Wconditional-uninitialized -Wnullable-to-nonnull-conversion -Wmissing-method-return-type -Woverlength-strings 2 | GCC_WARN_UNDECLARED_SELECTOR = YES 3 | CLANG_UNDEFINED_BEHAVIOR_SANITIZER_NULLABILITY = YES 4 | CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE 5 | CLANG_WARN__DUPLICATE_METHOD_MATCH = YES 6 | CLANG_WARN_PRAGMA_PACK = YES 7 | CLANG_WARN_STRICT_PROTOTYPES = YES 8 | CLANG_WARN_COMMA = YES 9 | GCC_WARN_STRICT_SELECTOR_MATCH = YES 10 | CLANG_WARN_OBJC_REPEATED_USE_OF_WEAK = YES 11 | CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES 12 | GCC_WARN_SHADOW = YES 13 | CLANG_WARN_UNREACHABLE_CODE = YES 14 | -------------------------------------------------------------------------------- /example/macos/Runner/DebugProfile.entitlements: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | com.apple.security.app-sandbox 6 | 7 | com.apple.security.cs.allow-jit 8 | 9 | com.apple.security.network.server 10 | 11 | 12 | 13 | -------------------------------------------------------------------------------- /example/macos/Runner/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | $(DEVELOPMENT_LANGUAGE) 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIconFile 10 | 11 | CFBundleIdentifier 12 | $(PRODUCT_BUNDLE_IDENTIFIER) 13 | CFBundleInfoDictionaryVersion 14 | 6.0 15 | CFBundleName 16 | $(PRODUCT_NAME) 17 | CFBundlePackageType 18 | APPL 19 | CFBundleShortVersionString 20 | $(FLUTTER_BUILD_NAME) 21 | CFBundleVersion 22 | $(FLUTTER_BUILD_NUMBER) 23 | LSMinimumSystemVersion 24 | $(MACOSX_DEPLOYMENT_TARGET) 25 | NSHumanReadableCopyright 26 | $(PRODUCT_COPYRIGHT) 27 | NSMainNibFile 28 | MainMenu 29 | NSPrincipalClass 30 | NSApplication 31 | 32 | 33 | -------------------------------------------------------------------------------- /example/macos/Runner/MainFlutterWindow.swift: -------------------------------------------------------------------------------- 1 | import Cocoa 2 | import FlutterMacOS 3 | 4 | class MainFlutterWindow: NSWindow { 5 | override func awakeFromNib() { 6 | let flutterViewController = FlutterViewController() 7 | let windowFrame = self.frame 8 | self.contentViewController = flutterViewController 9 | self.setFrame(windowFrame, display: true) 10 | 11 | RegisterGeneratedPlugins(registry: flutterViewController) 12 | 13 | super.awakeFromNib() 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /example/macos/Runner/Release.entitlements: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | com.apple.security.app-sandbox 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /example/macos/RunnerTests/RunnerTests.swift: -------------------------------------------------------------------------------- 1 | import FlutterMacOS 2 | import Cocoa 3 | import XCTest 4 | 5 | class RunnerTests: XCTestCase { 6 | 7 | func testExample() { 8 | // If you add code to the Runner application, consider adding tests here. 9 | // See https://developer.apple.com/documentation/xctest for more information about using XCTest. 10 | } 11 | 12 | } 13 | -------------------------------------------------------------------------------- /example/pubspec.lock: -------------------------------------------------------------------------------- 1 | # Generated by pub 2 | # See https://dart.dev/tools/pub/glossary#lockfile 3 | packages: 4 | async: 5 | dependency: transitive 6 | description: 7 | name: async 8 | sha256: "758e6d74e971c3e5aceb4110bfd6698efc7f501675bcfe0c775459a8140750eb" 9 | url: "https://pub.dev" 10 | source: hosted 11 | version: "2.13.0" 12 | boolean_selector: 13 | dependency: transitive 14 | description: 15 | name: boolean_selector 16 | sha256: "8aab1771e1243a5063b8b0ff68042d67334e3feab9e95b9490f9a6ebf73b42ea" 17 | url: "https://pub.dev" 18 | source: hosted 19 | version: "2.1.2" 20 | characters: 21 | dependency: transitive 22 | description: 23 | name: characters 24 | sha256: f71061c654a3380576a52b451dd5532377954cf9dbd272a78fc8479606670803 25 | url: "https://pub.dev" 26 | source: hosted 27 | version: "1.4.0" 28 | clock: 29 | dependency: transitive 30 | description: 31 | name: clock 32 | sha256: fddb70d9b5277016c77a80201021d40a2247104d9f4aa7bab7157b7e3f05b84b 33 | url: "https://pub.dev" 34 | source: hosted 35 | version: "1.1.2" 36 | collection: 37 | dependency: transitive 38 | description: 39 | name: collection 40 | sha256: "2f5709ae4d3d59dd8f7cd309b4e023046b57d8a6c82130785d2b0e5868084e76" 41 | url: "https://pub.dev" 42 | source: hosted 43 | version: "1.19.1" 44 | cupertino_icons: 45 | dependency: "direct main" 46 | description: 47 | name: cupertino_icons 48 | sha256: ba631d1c7f7bef6b729a622b7b752645a2d076dba9976925b8f25725a30e1ee6 49 | url: "https://pub.dev" 50 | source: hosted 51 | version: "1.0.8" 52 | fake_async: 53 | dependency: transitive 54 | description: 55 | name: fake_async 56 | sha256: "5368f224a74523e8d2e7399ea1638b37aecfca824a3cc4dfdf77bf1fa905ac44" 57 | url: "https://pub.dev" 58 | source: hosted 59 | version: "1.3.3" 60 | flutter: 61 | dependency: "direct main" 62 | description: flutter 63 | source: sdk 64 | version: "0.0.0" 65 | flutter_lints: 66 | dependency: "direct dev" 67 | description: 68 | name: flutter_lints 69 | sha256: "5398f14efa795ffb7a33e9b6a08798b26a180edac4ad7db3f231e40f82ce11e1" 70 | url: "https://pub.dev" 71 | source: hosted 72 | version: "5.0.0" 73 | flutter_test: 74 | dependency: "direct dev" 75 | description: flutter 76 | source: sdk 77 | version: "0.0.0" 78 | leak_tracker: 79 | dependency: transitive 80 | description: 81 | name: leak_tracker 82 | sha256: "33e2e26bdd85a0112ec15400c8cbffea70d0f9c3407491f672a2fad47915e2de" 83 | url: "https://pub.dev" 84 | source: hosted 85 | version: "11.0.2" 86 | leak_tracker_flutter_testing: 87 | dependency: transitive 88 | description: 89 | name: leak_tracker_flutter_testing 90 | sha256: "1dbc140bb5a23c75ea9c4811222756104fbcd1a27173f0c34ca01e16bea473c1" 91 | url: "https://pub.dev" 92 | source: hosted 93 | version: "3.0.10" 94 | leak_tracker_testing: 95 | dependency: transitive 96 | description: 97 | name: leak_tracker_testing 98 | sha256: "8d5a2d49f4a66b49744b23b018848400d23e54caf9463f4eb20df3eb8acb2eb1" 99 | url: "https://pub.dev" 100 | source: hosted 101 | version: "3.0.2" 102 | lints: 103 | dependency: transitive 104 | description: 105 | name: lints 106 | sha256: c35bb79562d980e9a453fc715854e1ed39e24e7d0297a880ef54e17f9874a9d7 107 | url: "https://pub.dev" 108 | source: hosted 109 | version: "5.1.1" 110 | matcher: 111 | dependency: transitive 112 | description: 113 | name: matcher 114 | sha256: dc58c723c3c24bf8d3e2d3ad3f2f9d7bd9cf43ec6feaa64181775e60190153f2 115 | url: "https://pub.dev" 116 | source: hosted 117 | version: "0.12.17" 118 | material_color_utilities: 119 | dependency: transitive 120 | description: 121 | name: material_color_utilities 122 | sha256: f7142bb1154231d7ea5f96bc7bde4bda2a0945d2806bb11670e30b850d56bdec 123 | url: "https://pub.dev" 124 | source: hosted 125 | version: "0.11.1" 126 | meta: 127 | dependency: transitive 128 | description: 129 | name: meta 130 | sha256: e3641ec5d63ebf0d9b41bd43201a66e3fc79a65db5f61fc181f04cd27aab950c 131 | url: "https://pub.dev" 132 | source: hosted 133 | version: "1.16.0" 134 | path: 135 | dependency: transitive 136 | description: 137 | name: path 138 | sha256: "75cca69d1490965be98c73ceaea117e8a04dd21217b37b292c9ddbec0d955bc5" 139 | url: "https://pub.dev" 140 | source: hosted 141 | version: "1.9.1" 142 | shader_buffers: 143 | dependency: "direct main" 144 | description: 145 | path: ".." 146 | relative: true 147 | source: path 148 | version: "1.1.2" 149 | sky_engine: 150 | dependency: transitive 151 | description: flutter 152 | source: sdk 153 | version: "0.0.0" 154 | source_span: 155 | dependency: transitive 156 | description: 157 | name: source_span 158 | sha256: "254ee5351d6cb365c859e20ee823c3bb479bf4a293c22d17a9f1bf144ce86f7c" 159 | url: "https://pub.dev" 160 | source: hosted 161 | version: "1.10.1" 162 | stack_trace: 163 | dependency: transitive 164 | description: 165 | name: stack_trace 166 | sha256: "8b27215b45d22309b5cddda1aa2b19bdfec9df0e765f2de506401c071d38d1b1" 167 | url: "https://pub.dev" 168 | source: hosted 169 | version: "1.12.1" 170 | stream_channel: 171 | dependency: transitive 172 | description: 173 | name: stream_channel 174 | sha256: "969e04c80b8bcdf826f8f16579c7b14d780458bd97f56d107d3950fdbeef059d" 175 | url: "https://pub.dev" 176 | source: hosted 177 | version: "2.1.4" 178 | string_scanner: 179 | dependency: transitive 180 | description: 181 | name: string_scanner 182 | sha256: "921cd31725b72fe181906c6a94d987c78e3b98c2e205b397ea399d4054872b43" 183 | url: "https://pub.dev" 184 | source: hosted 185 | version: "1.4.1" 186 | term_glyph: 187 | dependency: transitive 188 | description: 189 | name: term_glyph 190 | sha256: "7f554798625ea768a7518313e58f83891c7f5024f88e46e7182a4558850a4b8e" 191 | url: "https://pub.dev" 192 | source: hosted 193 | version: "1.2.2" 194 | test_api: 195 | dependency: transitive 196 | description: 197 | name: test_api 198 | sha256: "522f00f556e73044315fa4585ec3270f1808a4b186c936e612cab0b565ff1e00" 199 | url: "https://pub.dev" 200 | source: hosted 201 | version: "0.7.6" 202 | vector_math: 203 | dependency: transitive 204 | description: 205 | name: vector_math 206 | sha256: d530bd74fea330e6e364cda7a85019c434070188383e1cd8d9777ee586914c5b 207 | url: "https://pub.dev" 208 | source: hosted 209 | version: "2.2.0" 210 | very_good_analysis: 211 | dependency: "direct dev" 212 | description: 213 | name: very_good_analysis 214 | sha256: "1fb637c0022034b1f19ea2acb42a3603cbd8314a470646a59a2fb01f5f3a8629" 215 | url: "https://pub.dev" 216 | source: hosted 217 | version: "6.0.0" 218 | vm_service: 219 | dependency: transitive 220 | description: 221 | name: vm_service 222 | sha256: "45caa6c5917fa127b5dbcfbd1fa60b14e583afdc08bfc96dda38886ca252eb60" 223 | url: "https://pub.dev" 224 | source: hosted 225 | version: "15.0.2" 226 | sdks: 227 | dart: ">=3.8.0-0 <4.0.0" 228 | flutter: ">=3.18.0-18.0.pre.54" 229 | -------------------------------------------------------------------------------- /example/pubspec.yaml: -------------------------------------------------------------------------------- 1 | name: shader_buffers_example 2 | description: Shader buffers example 3 | publish_to: 'none' # Remove this line if you wish to publish to pub.dev 4 | 5 | version: 1.0.0+1 6 | 7 | environment: 8 | sdk: '>=3.1.5 <4.0.0' 9 | 10 | dependencies: 11 | cupertino_icons: ^1.0.8 12 | 13 | flutter: 14 | sdk: flutter 15 | 16 | shader_buffers: 17 | path: ../ 18 | 19 | dev_dependencies: 20 | flutter_lints: ^5.0.0 21 | 22 | flutter_test: 23 | sdk: flutter 24 | 25 | very_good_analysis: ^6.0.0 26 | 27 | flutter: 28 | uses-material-design: true 29 | 30 | assets: 31 | - assets/ 32 | 33 | shaders: 34 | - assets/shaders/arrows.frag 35 | - assets/shaders/mouse1.frag 36 | - assets/shaders/mouse2.frag 37 | - assets/shaders/shader1_main.frag 38 | - assets/shaders/shader1_bufferA.frag 39 | - assets/shaders/shader2_main.frag 40 | - assets/shaders/shader2_bufferA.frag 41 | - assets/shaders/test.frag 42 | - assets/shaders/water.frag 43 | - assets/shaders/page_curl.frag 44 | - assets/shaders/noise_fade.frag 45 | - assets/shaders/ripple.frag 46 | - assets/shaders/test_isself_buffer_a.frag 47 | - assets/shaders/test_isself_main.frag 48 | - assets/shaders/filters/black.frag 49 | - assets/shaders/filters/white.frag 50 | 51 | -------------------------------------------------------------------------------- /example/web/favicon.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/web/favicon.png -------------------------------------------------------------------------------- /example/web/icons/Icon-192.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/web/icons/Icon-192.png -------------------------------------------------------------------------------- /example/web/icons/Icon-512.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/web/icons/Icon-512.png -------------------------------------------------------------------------------- /example/web/icons/Icon-maskable-192.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/web/icons/Icon-maskable-192.png -------------------------------------------------------------------------------- /example/web/icons/Icon-maskable-512.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/web/icons/Icon-maskable-512.png -------------------------------------------------------------------------------- /example/web/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | example 33 | 34 | 35 | 39 | 40 | 41 | 42 | 43 | 58 | 59 | 60 | -------------------------------------------------------------------------------- /example/web/manifest.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "example", 3 | "short_name": "example", 4 | "start_url": ".", 5 | "display": "standalone", 6 | "background_color": "#0175C2", 7 | "theme_color": "#0175C2", 8 | "description": "A new Flutter project.", 9 | "orientation": "portrait-primary", 10 | "prefer_related_applications": false, 11 | "icons": [ 12 | { 13 | "src": "icons/Icon-192.png", 14 | "sizes": "192x192", 15 | "type": "image/png" 16 | }, 17 | { 18 | "src": "icons/Icon-512.png", 19 | "sizes": "512x512", 20 | "type": "image/png" 21 | }, 22 | { 23 | "src": "icons/Icon-maskable-192.png", 24 | "sizes": "192x192", 25 | "type": "image/png", 26 | "purpose": "maskable" 27 | }, 28 | { 29 | "src": "icons/Icon-maskable-512.png", 30 | "sizes": "512x512", 31 | "type": "image/png", 32 | "purpose": "maskable" 33 | } 34 | ] 35 | } 36 | -------------------------------------------------------------------------------- /example/windows/.gitignore: -------------------------------------------------------------------------------- 1 | flutter/ephemeral/ 2 | 3 | # Visual Studio user-specific files. 4 | *.suo 5 | *.user 6 | *.userosscache 7 | *.sln.docstates 8 | 9 | # Visual Studio build-related files. 10 | x64/ 11 | x86/ 12 | 13 | # Visual Studio cache files 14 | # files ending in .cache can be ignored 15 | *.[Cc]ache 16 | # but keep track of directories ending in .cache 17 | !*.[Cc]ache/ 18 | -------------------------------------------------------------------------------- /example/windows/CMakeLists.txt: -------------------------------------------------------------------------------- 1 | # Project-level configuration. 2 | cmake_minimum_required(VERSION 3.14) 3 | project(example LANGUAGES CXX) 4 | 5 | # The name of the executable created for the application. Change this to change 6 | # the on-disk name of your application. 7 | set(BINARY_NAME "example") 8 | 9 | # Explicitly opt in to modern CMake behaviors to avoid warnings with recent 10 | # versions of CMake. 11 | cmake_policy(VERSION 3.14...3.25) 12 | 13 | # Define build configuration option. 14 | get_property(IS_MULTICONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG) 15 | if(IS_MULTICONFIG) 16 | set(CMAKE_CONFIGURATION_TYPES "Debug;Profile;Release" 17 | CACHE STRING "" FORCE) 18 | else() 19 | if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES) 20 | set(CMAKE_BUILD_TYPE "Debug" CACHE 21 | STRING "Flutter build mode" FORCE) 22 | set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS 23 | "Debug" "Profile" "Release") 24 | endif() 25 | endif() 26 | # Define settings for the Profile build mode. 27 | set(CMAKE_EXE_LINKER_FLAGS_PROFILE "${CMAKE_EXE_LINKER_FLAGS_RELEASE}") 28 | set(CMAKE_SHARED_LINKER_FLAGS_PROFILE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE}") 29 | set(CMAKE_C_FLAGS_PROFILE "${CMAKE_C_FLAGS_RELEASE}") 30 | set(CMAKE_CXX_FLAGS_PROFILE "${CMAKE_CXX_FLAGS_RELEASE}") 31 | 32 | # Use Unicode for all projects. 33 | add_definitions(-DUNICODE -D_UNICODE) 34 | 35 | # Compilation settings that should be applied to most targets. 36 | # 37 | # Be cautious about adding new options here, as plugins use this function by 38 | # default. In most cases, you should add new options to specific targets instead 39 | # of modifying this function. 40 | function(APPLY_STANDARD_SETTINGS TARGET) 41 | target_compile_features(${TARGET} PUBLIC cxx_std_17) 42 | target_compile_options(${TARGET} PRIVATE /W4 /WX /wd"4100") 43 | target_compile_options(${TARGET} PRIVATE /EHsc) 44 | target_compile_definitions(${TARGET} PRIVATE "_HAS_EXCEPTIONS=0") 45 | target_compile_definitions(${TARGET} PRIVATE "$<$:_DEBUG>") 46 | endfunction() 47 | 48 | # Flutter library and tool build rules. 49 | set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter") 50 | add_subdirectory(${FLUTTER_MANAGED_DIR}) 51 | 52 | # Application build; see runner/CMakeLists.txt. 53 | add_subdirectory("runner") 54 | 55 | 56 | # Generated plugin build rules, which manage building the plugins and adding 57 | # them to the application. 58 | include(flutter/generated_plugins.cmake) 59 | 60 | 61 | # === Installation === 62 | # Support files are copied into place next to the executable, so that it can 63 | # run in place. This is done instead of making a separate bundle (as on Linux) 64 | # so that building and running from within Visual Studio will work. 65 | set(BUILD_BUNDLE_DIR "$") 66 | # Make the "install" step default, as it's required to run. 67 | set(CMAKE_VS_INCLUDE_INSTALL_TO_DEFAULT_BUILD 1) 68 | if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT) 69 | set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE) 70 | endif() 71 | 72 | set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data") 73 | set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}") 74 | 75 | install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}" 76 | COMPONENT Runtime) 77 | 78 | install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" 79 | COMPONENT Runtime) 80 | 81 | install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}" 82 | COMPONENT Runtime) 83 | 84 | if(PLUGIN_BUNDLED_LIBRARIES) 85 | install(FILES "${PLUGIN_BUNDLED_LIBRARIES}" 86 | DESTINATION "${INSTALL_BUNDLE_LIB_DIR}" 87 | COMPONENT Runtime) 88 | endif() 89 | 90 | # Fully re-copy the assets directory on each build to avoid having stale files 91 | # from a previous install. 92 | set(FLUTTER_ASSET_DIR_NAME "flutter_assets") 93 | install(CODE " 94 | file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\") 95 | " COMPONENT Runtime) 96 | install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}" 97 | DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime) 98 | 99 | # Install the AOT library on non-Debug builds only. 100 | install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" 101 | CONFIGURATIONS Profile;Release 102 | COMPONENT Runtime) 103 | -------------------------------------------------------------------------------- /example/windows/flutter/CMakeLists.txt: -------------------------------------------------------------------------------- 1 | # This file controls Flutter-level build steps. It should not be edited. 2 | cmake_minimum_required(VERSION 3.14) 3 | 4 | set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral") 5 | 6 | # Configuration provided via flutter tool. 7 | include(${EPHEMERAL_DIR}/generated_config.cmake) 8 | 9 | # TODO: Move the rest of this into files in ephemeral. See 10 | # https://github.com/flutter/flutter/issues/57146. 11 | set(WRAPPER_ROOT "${EPHEMERAL_DIR}/cpp_client_wrapper") 12 | 13 | # === Flutter Library === 14 | set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/flutter_windows.dll") 15 | 16 | # Published to parent scope for install step. 17 | set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE) 18 | set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE) 19 | set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE) 20 | set(AOT_LIBRARY "${PROJECT_DIR}/build/windows/app.so" PARENT_SCOPE) 21 | 22 | list(APPEND FLUTTER_LIBRARY_HEADERS 23 | "flutter_export.h" 24 | "flutter_windows.h" 25 | "flutter_messenger.h" 26 | "flutter_plugin_registrar.h" 27 | "flutter_texture_registrar.h" 28 | ) 29 | list(TRANSFORM FLUTTER_LIBRARY_HEADERS PREPEND "${EPHEMERAL_DIR}/") 30 | add_library(flutter INTERFACE) 31 | target_include_directories(flutter INTERFACE 32 | "${EPHEMERAL_DIR}" 33 | ) 34 | target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}.lib") 35 | add_dependencies(flutter flutter_assemble) 36 | 37 | # === Wrapper === 38 | list(APPEND CPP_WRAPPER_SOURCES_CORE 39 | "core_implementations.cc" 40 | "standard_codec.cc" 41 | ) 42 | list(TRANSFORM CPP_WRAPPER_SOURCES_CORE PREPEND "${WRAPPER_ROOT}/") 43 | list(APPEND CPP_WRAPPER_SOURCES_PLUGIN 44 | "plugin_registrar.cc" 45 | ) 46 | list(TRANSFORM CPP_WRAPPER_SOURCES_PLUGIN PREPEND "${WRAPPER_ROOT}/") 47 | list(APPEND CPP_WRAPPER_SOURCES_APP 48 | "flutter_engine.cc" 49 | "flutter_view_controller.cc" 50 | ) 51 | list(TRANSFORM CPP_WRAPPER_SOURCES_APP PREPEND "${WRAPPER_ROOT}/") 52 | 53 | # Wrapper sources needed for a plugin. 54 | add_library(flutter_wrapper_plugin STATIC 55 | ${CPP_WRAPPER_SOURCES_CORE} 56 | ${CPP_WRAPPER_SOURCES_PLUGIN} 57 | ) 58 | apply_standard_settings(flutter_wrapper_plugin) 59 | set_target_properties(flutter_wrapper_plugin PROPERTIES 60 | POSITION_INDEPENDENT_CODE ON) 61 | set_target_properties(flutter_wrapper_plugin PROPERTIES 62 | CXX_VISIBILITY_PRESET hidden) 63 | target_link_libraries(flutter_wrapper_plugin PUBLIC flutter) 64 | target_include_directories(flutter_wrapper_plugin PUBLIC 65 | "${WRAPPER_ROOT}/include" 66 | ) 67 | add_dependencies(flutter_wrapper_plugin flutter_assemble) 68 | 69 | # Wrapper sources needed for the runner. 70 | add_library(flutter_wrapper_app STATIC 71 | ${CPP_WRAPPER_SOURCES_CORE} 72 | ${CPP_WRAPPER_SOURCES_APP} 73 | ) 74 | apply_standard_settings(flutter_wrapper_app) 75 | target_link_libraries(flutter_wrapper_app PUBLIC flutter) 76 | target_include_directories(flutter_wrapper_app PUBLIC 77 | "${WRAPPER_ROOT}/include" 78 | ) 79 | add_dependencies(flutter_wrapper_app flutter_assemble) 80 | 81 | # === Flutter tool backend === 82 | # _phony_ is a non-existent file to force this command to run every time, 83 | # since currently there's no way to get a full input/output list from the 84 | # flutter tool. 85 | set(PHONY_OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/_phony_") 86 | set_source_files_properties("${PHONY_OUTPUT}" PROPERTIES SYMBOLIC TRUE) 87 | add_custom_command( 88 | OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS} 89 | ${CPP_WRAPPER_SOURCES_CORE} ${CPP_WRAPPER_SOURCES_PLUGIN} 90 | ${CPP_WRAPPER_SOURCES_APP} 91 | ${PHONY_OUTPUT} 92 | COMMAND ${CMAKE_COMMAND} -E env 93 | ${FLUTTER_TOOL_ENVIRONMENT} 94 | "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.bat" 95 | windows-x64 $ 96 | VERBATIM 97 | ) 98 | add_custom_target(flutter_assemble DEPENDS 99 | "${FLUTTER_LIBRARY}" 100 | ${FLUTTER_LIBRARY_HEADERS} 101 | ${CPP_WRAPPER_SOURCES_CORE} 102 | ${CPP_WRAPPER_SOURCES_PLUGIN} 103 | ${CPP_WRAPPER_SOURCES_APP} 104 | ) 105 | -------------------------------------------------------------------------------- /example/windows/flutter/generated_plugin_registrant.cc: -------------------------------------------------------------------------------- 1 | // 2 | // Generated file. Do not edit. 3 | // 4 | 5 | // clang-format off 6 | 7 | #include "generated_plugin_registrant.h" 8 | 9 | 10 | void RegisterPlugins(flutter::PluginRegistry* registry) { 11 | } 12 | -------------------------------------------------------------------------------- /example/windows/flutter/generated_plugin_registrant.h: -------------------------------------------------------------------------------- 1 | // 2 | // Generated file. Do not edit. 3 | // 4 | 5 | // clang-format off 6 | 7 | #ifndef GENERATED_PLUGIN_REGISTRANT_ 8 | #define GENERATED_PLUGIN_REGISTRANT_ 9 | 10 | #include 11 | 12 | // Registers Flutter plugins. 13 | void RegisterPlugins(flutter::PluginRegistry* registry); 14 | 15 | #endif // GENERATED_PLUGIN_REGISTRANT_ 16 | -------------------------------------------------------------------------------- /example/windows/flutter/generated_plugins.cmake: -------------------------------------------------------------------------------- 1 | # 2 | # Generated file, do not edit. 3 | # 4 | 5 | list(APPEND FLUTTER_PLUGIN_LIST 6 | ) 7 | 8 | list(APPEND FLUTTER_FFI_PLUGIN_LIST 9 | ) 10 | 11 | set(PLUGIN_BUNDLED_LIBRARIES) 12 | 13 | foreach(plugin ${FLUTTER_PLUGIN_LIST}) 14 | add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/windows plugins/${plugin}) 15 | target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin) 16 | list(APPEND PLUGIN_BUNDLED_LIBRARIES $) 17 | list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries}) 18 | endforeach(plugin) 19 | 20 | foreach(ffi_plugin ${FLUTTER_FFI_PLUGIN_LIST}) 21 | add_subdirectory(flutter/ephemeral/.plugin_symlinks/${ffi_plugin}/windows plugins/${ffi_plugin}) 22 | list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${ffi_plugin}_bundled_libraries}) 23 | endforeach(ffi_plugin) 24 | -------------------------------------------------------------------------------- /example/windows/runner/CMakeLists.txt: -------------------------------------------------------------------------------- 1 | cmake_minimum_required(VERSION 3.14) 2 | project(runner LANGUAGES CXX) 3 | 4 | # Define the application target. To change its name, change BINARY_NAME in the 5 | # top-level CMakeLists.txt, not the value here, or `flutter run` will no longer 6 | # work. 7 | # 8 | # Any new source files that you add to the application should be added here. 9 | add_executable(${BINARY_NAME} WIN32 10 | "flutter_window.cpp" 11 | "main.cpp" 12 | "utils.cpp" 13 | "win32_window.cpp" 14 | "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc" 15 | "Runner.rc" 16 | "runner.exe.manifest" 17 | ) 18 | 19 | # Apply the standard set of build settings. This can be removed for applications 20 | # that need different build settings. 21 | apply_standard_settings(${BINARY_NAME}) 22 | 23 | # Add preprocessor definitions for the build version. 24 | target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION=\"${FLUTTER_VERSION}\"") 25 | target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_MAJOR=${FLUTTER_VERSION_MAJOR}") 26 | target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_MINOR=${FLUTTER_VERSION_MINOR}") 27 | target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_PATCH=${FLUTTER_VERSION_PATCH}") 28 | target_compile_definitions(${BINARY_NAME} PRIVATE "FLUTTER_VERSION_BUILD=${FLUTTER_VERSION_BUILD}") 29 | 30 | # Disable Windows macros that collide with C++ standard library functions. 31 | target_compile_definitions(${BINARY_NAME} PRIVATE "NOMINMAX") 32 | 33 | # Add dependency libraries and include directories. Add any application-specific 34 | # dependencies here. 35 | target_link_libraries(${BINARY_NAME} PRIVATE flutter flutter_wrapper_app) 36 | target_link_libraries(${BINARY_NAME} PRIVATE "dwmapi.lib") 37 | target_include_directories(${BINARY_NAME} PRIVATE "${CMAKE_SOURCE_DIR}") 38 | 39 | # Run the Flutter tool portions of the build. This must not be removed. 40 | add_dependencies(${BINARY_NAME} flutter_assemble) 41 | -------------------------------------------------------------------------------- /example/windows/runner/Runner.rc: -------------------------------------------------------------------------------- 1 | // Microsoft Visual C++ generated resource script. 2 | // 3 | #pragma code_page(65001) 4 | #include "resource.h" 5 | 6 | #define APSTUDIO_READONLY_SYMBOLS 7 | ///////////////////////////////////////////////////////////////////////////// 8 | // 9 | // Generated from the TEXTINCLUDE 2 resource. 10 | // 11 | #include "winres.h" 12 | 13 | ///////////////////////////////////////////////////////////////////////////// 14 | #undef APSTUDIO_READONLY_SYMBOLS 15 | 16 | ///////////////////////////////////////////////////////////////////////////// 17 | // English (United States) resources 18 | 19 | #if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU) 20 | LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US 21 | 22 | #ifdef APSTUDIO_INVOKED 23 | ///////////////////////////////////////////////////////////////////////////// 24 | // 25 | // TEXTINCLUDE 26 | // 27 | 28 | 1 TEXTINCLUDE 29 | BEGIN 30 | "resource.h\0" 31 | END 32 | 33 | 2 TEXTINCLUDE 34 | BEGIN 35 | "#include ""winres.h""\r\n" 36 | "\0" 37 | END 38 | 39 | 3 TEXTINCLUDE 40 | BEGIN 41 | "\r\n" 42 | "\0" 43 | END 44 | 45 | #endif // APSTUDIO_INVOKED 46 | 47 | 48 | ///////////////////////////////////////////////////////////////////////////// 49 | // 50 | // Icon 51 | // 52 | 53 | // Icon with lowest ID value placed first to ensure application icon 54 | // remains consistent on all systems. 55 | IDI_APP_ICON ICON "resources\\app_icon.ico" 56 | 57 | 58 | ///////////////////////////////////////////////////////////////////////////// 59 | // 60 | // Version 61 | // 62 | 63 | #if defined(FLUTTER_VERSION_MAJOR) && defined(FLUTTER_VERSION_MINOR) && defined(FLUTTER_VERSION_PATCH) && defined(FLUTTER_VERSION_BUILD) 64 | #define VERSION_AS_NUMBER FLUTTER_VERSION_MAJOR,FLUTTER_VERSION_MINOR,FLUTTER_VERSION_PATCH,FLUTTER_VERSION_BUILD 65 | #else 66 | #define VERSION_AS_NUMBER 1,0,0,0 67 | #endif 68 | 69 | #if defined(FLUTTER_VERSION) 70 | #define VERSION_AS_STRING FLUTTER_VERSION 71 | #else 72 | #define VERSION_AS_STRING "1.0.0" 73 | #endif 74 | 75 | VS_VERSION_INFO VERSIONINFO 76 | FILEVERSION VERSION_AS_NUMBER 77 | PRODUCTVERSION VERSION_AS_NUMBER 78 | FILEFLAGSMASK VS_FFI_FILEFLAGSMASK 79 | #ifdef _DEBUG 80 | FILEFLAGS VS_FF_DEBUG 81 | #else 82 | FILEFLAGS 0x0L 83 | #endif 84 | FILEOS VOS__WINDOWS32 85 | FILETYPE VFT_APP 86 | FILESUBTYPE 0x0L 87 | BEGIN 88 | BLOCK "StringFileInfo" 89 | BEGIN 90 | BLOCK "040904e4" 91 | BEGIN 92 | VALUE "CompanyName", "com.example" "\0" 93 | VALUE "FileDescription", "example" "\0" 94 | VALUE "FileVersion", VERSION_AS_STRING "\0" 95 | VALUE "InternalName", "example" "\0" 96 | VALUE "LegalCopyright", "Copyright (C) 2023 com.example. All rights reserved." "\0" 97 | VALUE "OriginalFilename", "example.exe" "\0" 98 | VALUE "ProductName", "example" "\0" 99 | VALUE "ProductVersion", VERSION_AS_STRING "\0" 100 | END 101 | END 102 | BLOCK "VarFileInfo" 103 | BEGIN 104 | VALUE "Translation", 0x409, 1252 105 | END 106 | END 107 | 108 | #endif // English (United States) resources 109 | ///////////////////////////////////////////////////////////////////////////// 110 | 111 | 112 | 113 | #ifndef APSTUDIO_INVOKED 114 | ///////////////////////////////////////////////////////////////////////////// 115 | // 116 | // Generated from the TEXTINCLUDE 3 resource. 117 | // 118 | 119 | 120 | ///////////////////////////////////////////////////////////////////////////// 121 | #endif // not APSTUDIO_INVOKED 122 | -------------------------------------------------------------------------------- /example/windows/runner/flutter_window.cpp: -------------------------------------------------------------------------------- 1 | #include "flutter_window.h" 2 | 3 | #include 4 | 5 | #include "flutter/generated_plugin_registrant.h" 6 | 7 | FlutterWindow::FlutterWindow(const flutter::DartProject& project) 8 | : project_(project) {} 9 | 10 | FlutterWindow::~FlutterWindow() {} 11 | 12 | bool FlutterWindow::OnCreate() { 13 | if (!Win32Window::OnCreate()) { 14 | return false; 15 | } 16 | 17 | RECT frame = GetClientArea(); 18 | 19 | // The size here must match the window dimensions to avoid unnecessary surface 20 | // creation / destruction in the startup path. 21 | flutter_controller_ = std::make_unique( 22 | frame.right - frame.left, frame.bottom - frame.top, project_); 23 | // Ensure that basic setup of the controller was successful. 24 | if (!flutter_controller_->engine() || !flutter_controller_->view()) { 25 | return false; 26 | } 27 | RegisterPlugins(flutter_controller_->engine()); 28 | SetChildContent(flutter_controller_->view()->GetNativeWindow()); 29 | 30 | flutter_controller_->engine()->SetNextFrameCallback([&]() { 31 | this->Show(); 32 | }); 33 | 34 | // Flutter can complete the first frame before the "show window" callback is 35 | // registered. The following call ensures a frame is pending to ensure the 36 | // window is shown. It is a no-op if the first frame hasn't completed yet. 37 | flutter_controller_->ForceRedraw(); 38 | 39 | return true; 40 | } 41 | 42 | void FlutterWindow::OnDestroy() { 43 | if (flutter_controller_) { 44 | flutter_controller_ = nullptr; 45 | } 46 | 47 | Win32Window::OnDestroy(); 48 | } 49 | 50 | LRESULT 51 | FlutterWindow::MessageHandler(HWND hwnd, UINT const message, 52 | WPARAM const wparam, 53 | LPARAM const lparam) noexcept { 54 | // Give Flutter, including plugins, an opportunity to handle window messages. 55 | if (flutter_controller_) { 56 | std::optional result = 57 | flutter_controller_->HandleTopLevelWindowProc(hwnd, message, wparam, 58 | lparam); 59 | if (result) { 60 | return *result; 61 | } 62 | } 63 | 64 | switch (message) { 65 | case WM_FONTCHANGE: 66 | flutter_controller_->engine()->ReloadSystemFonts(); 67 | break; 68 | } 69 | 70 | return Win32Window::MessageHandler(hwnd, message, wparam, lparam); 71 | } 72 | -------------------------------------------------------------------------------- /example/windows/runner/flutter_window.h: -------------------------------------------------------------------------------- 1 | #ifndef RUNNER_FLUTTER_WINDOW_H_ 2 | #define RUNNER_FLUTTER_WINDOW_H_ 3 | 4 | #include 5 | #include 6 | 7 | #include 8 | 9 | #include "win32_window.h" 10 | 11 | // A window that does nothing but host a Flutter view. 12 | class FlutterWindow : public Win32Window { 13 | public: 14 | // Creates a new FlutterWindow hosting a Flutter view running |project|. 15 | explicit FlutterWindow(const flutter::DartProject& project); 16 | virtual ~FlutterWindow(); 17 | 18 | protected: 19 | // Win32Window: 20 | bool OnCreate() override; 21 | void OnDestroy() override; 22 | LRESULT MessageHandler(HWND window, UINT const message, WPARAM const wparam, 23 | LPARAM const lparam) noexcept override; 24 | 25 | private: 26 | // The project to run. 27 | flutter::DartProject project_; 28 | 29 | // The Flutter instance hosted by this window. 30 | std::unique_ptr flutter_controller_; 31 | }; 32 | 33 | #endif // RUNNER_FLUTTER_WINDOW_H_ 34 | -------------------------------------------------------------------------------- /example/windows/runner/main.cpp: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include 4 | 5 | #include "flutter_window.h" 6 | #include "utils.h" 7 | 8 | int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev, 9 | _In_ wchar_t *command_line, _In_ int show_command) { 10 | // Attach to console when present (e.g., 'flutter run') or create a 11 | // new console when running with a debugger. 12 | if (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent()) { 13 | CreateAndAttachConsole(); 14 | } 15 | 16 | // Initialize COM, so that it is available for use in the library and/or 17 | // plugins. 18 | ::CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED); 19 | 20 | flutter::DartProject project(L"data"); 21 | 22 | std::vector command_line_arguments = 23 | GetCommandLineArguments(); 24 | 25 | project.set_dart_entrypoint_arguments(std::move(command_line_arguments)); 26 | 27 | FlutterWindow window(project); 28 | Win32Window::Point origin(10, 10); 29 | Win32Window::Size size(1280, 720); 30 | if (!window.Create(L"example", origin, size)) { 31 | return EXIT_FAILURE; 32 | } 33 | window.SetQuitOnClose(true); 34 | 35 | ::MSG msg; 36 | while (::GetMessage(&msg, nullptr, 0, 0)) { 37 | ::TranslateMessage(&msg); 38 | ::DispatchMessage(&msg); 39 | } 40 | 41 | ::CoUninitialize(); 42 | return EXIT_SUCCESS; 43 | } 44 | -------------------------------------------------------------------------------- /example/windows/runner/resource.h: -------------------------------------------------------------------------------- 1 | //{{NO_DEPENDENCIES}} 2 | // Microsoft Visual C++ generated include file. 3 | // Used by Runner.rc 4 | // 5 | #define IDI_APP_ICON 101 6 | 7 | // Next default values for new objects 8 | // 9 | #ifdef APSTUDIO_INVOKED 10 | #ifndef APSTUDIO_READONLY_SYMBOLS 11 | #define _APS_NEXT_RESOURCE_VALUE 102 12 | #define _APS_NEXT_COMMAND_VALUE 40001 13 | #define _APS_NEXT_CONTROL_VALUE 1001 14 | #define _APS_NEXT_SYMED_VALUE 101 15 | #endif 16 | #endif 17 | -------------------------------------------------------------------------------- /example/windows/runner/resources/app_icon.ico: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/example/windows/runner/resources/app_icon.ico -------------------------------------------------------------------------------- /example/windows/runner/runner.exe.manifest: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | PerMonitorV2 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | -------------------------------------------------------------------------------- /example/windows/runner/utils.cpp: -------------------------------------------------------------------------------- 1 | #include "utils.h" 2 | 3 | #include 4 | #include 5 | #include 6 | #include 7 | 8 | #include 9 | 10 | void CreateAndAttachConsole() { 11 | if (::AllocConsole()) { 12 | FILE *unused; 13 | if (freopen_s(&unused, "CONOUT$", "w", stdout)) { 14 | _dup2(_fileno(stdout), 1); 15 | } 16 | if (freopen_s(&unused, "CONOUT$", "w", stderr)) { 17 | _dup2(_fileno(stdout), 2); 18 | } 19 | std::ios::sync_with_stdio(); 20 | FlutterDesktopResyncOutputStreams(); 21 | } 22 | } 23 | 24 | std::vector GetCommandLineArguments() { 25 | // Convert the UTF-16 command line arguments to UTF-8 for the Engine to use. 26 | int argc; 27 | wchar_t** argv = ::CommandLineToArgvW(::GetCommandLineW(), &argc); 28 | if (argv == nullptr) { 29 | return std::vector(); 30 | } 31 | 32 | std::vector command_line_arguments; 33 | 34 | // Skip the first argument as it's the binary name. 35 | for (int i = 1; i < argc; i++) { 36 | command_line_arguments.push_back(Utf8FromUtf16(argv[i])); 37 | } 38 | 39 | ::LocalFree(argv); 40 | 41 | return command_line_arguments; 42 | } 43 | 44 | std::string Utf8FromUtf16(const wchar_t* utf16_string) { 45 | if (utf16_string == nullptr) { 46 | return std::string(); 47 | } 48 | int target_length = ::WideCharToMultiByte( 49 | CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string, 50 | -1, nullptr, 0, nullptr, nullptr) 51 | -1; // remove the trailing null character 52 | int input_length = (int)wcslen(utf16_string); 53 | std::string utf8_string; 54 | if (target_length <= 0 || target_length > utf8_string.max_size()) { 55 | return utf8_string; 56 | } 57 | utf8_string.resize(target_length); 58 | int converted_length = ::WideCharToMultiByte( 59 | CP_UTF8, WC_ERR_INVALID_CHARS, utf16_string, 60 | input_length, utf8_string.data(), target_length, nullptr, nullptr); 61 | if (converted_length == 0) { 62 | return std::string(); 63 | } 64 | return utf8_string; 65 | } 66 | -------------------------------------------------------------------------------- /example/windows/runner/utils.h: -------------------------------------------------------------------------------- 1 | #ifndef RUNNER_UTILS_H_ 2 | #define RUNNER_UTILS_H_ 3 | 4 | #include 5 | #include 6 | 7 | // Creates a console for the process, and redirects stdout and stderr to 8 | // it for both the runner and the Flutter library. 9 | void CreateAndAttachConsole(); 10 | 11 | // Takes a null-terminated wchar_t* encoded in UTF-16 and returns a std::string 12 | // encoded in UTF-8. Returns an empty std::string on failure. 13 | std::string Utf8FromUtf16(const wchar_t* utf16_string); 14 | 15 | // Gets the command line arguments passed in as a std::vector, 16 | // encoded in UTF-8. Returns an empty std::vector on failure. 17 | std::vector GetCommandLineArguments(); 18 | 19 | #endif // RUNNER_UTILS_H_ 20 | -------------------------------------------------------------------------------- /example/windows/runner/win32_window.cpp: -------------------------------------------------------------------------------- 1 | #include "win32_window.h" 2 | 3 | #include 4 | #include 5 | 6 | #include "resource.h" 7 | 8 | namespace { 9 | 10 | /// Window attribute that enables dark mode window decorations. 11 | /// 12 | /// Redefined in case the developer's machine has a Windows SDK older than 13 | /// version 10.0.22000.0. 14 | /// See: https://docs.microsoft.com/windows/win32/api/dwmapi/ne-dwmapi-dwmwindowattribute 15 | #ifndef DWMWA_USE_IMMERSIVE_DARK_MODE 16 | #define DWMWA_USE_IMMERSIVE_DARK_MODE 20 17 | #endif 18 | 19 | constexpr const wchar_t kWindowClassName[] = L"FLUTTER_RUNNER_WIN32_WINDOW"; 20 | 21 | /// Registry key for app theme preference. 22 | /// 23 | /// A value of 0 indicates apps should use dark mode. A non-zero or missing 24 | /// value indicates apps should use light mode. 25 | constexpr const wchar_t kGetPreferredBrightnessRegKey[] = 26 | L"Software\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize"; 27 | constexpr const wchar_t kGetPreferredBrightnessRegValue[] = L"AppsUseLightTheme"; 28 | 29 | // The number of Win32Window objects that currently exist. 30 | static int g_active_window_count = 0; 31 | 32 | using EnableNonClientDpiScaling = BOOL __stdcall(HWND hwnd); 33 | 34 | // Scale helper to convert logical scaler values to physical using passed in 35 | // scale factor 36 | int Scale(int source, double scale_factor) { 37 | return static_cast(source * scale_factor); 38 | } 39 | 40 | // Dynamically loads the |EnableNonClientDpiScaling| from the User32 module. 41 | // This API is only needed for PerMonitor V1 awareness mode. 42 | void EnableFullDpiSupportIfAvailable(HWND hwnd) { 43 | HMODULE user32_module = LoadLibraryA("User32.dll"); 44 | if (!user32_module) { 45 | return; 46 | } 47 | auto enable_non_client_dpi_scaling = 48 | reinterpret_cast( 49 | GetProcAddress(user32_module, "EnableNonClientDpiScaling")); 50 | if (enable_non_client_dpi_scaling != nullptr) { 51 | enable_non_client_dpi_scaling(hwnd); 52 | } 53 | FreeLibrary(user32_module); 54 | } 55 | 56 | } // namespace 57 | 58 | // Manages the Win32Window's window class registration. 59 | class WindowClassRegistrar { 60 | public: 61 | ~WindowClassRegistrar() = default; 62 | 63 | // Returns the singleton registrar instance. 64 | static WindowClassRegistrar* GetInstance() { 65 | if (!instance_) { 66 | instance_ = new WindowClassRegistrar(); 67 | } 68 | return instance_; 69 | } 70 | 71 | // Returns the name of the window class, registering the class if it hasn't 72 | // previously been registered. 73 | const wchar_t* GetWindowClass(); 74 | 75 | // Unregisters the window class. Should only be called if there are no 76 | // instances of the window. 77 | void UnregisterWindowClass(); 78 | 79 | private: 80 | WindowClassRegistrar() = default; 81 | 82 | static WindowClassRegistrar* instance_; 83 | 84 | bool class_registered_ = false; 85 | }; 86 | 87 | WindowClassRegistrar* WindowClassRegistrar::instance_ = nullptr; 88 | 89 | const wchar_t* WindowClassRegistrar::GetWindowClass() { 90 | if (!class_registered_) { 91 | WNDCLASS window_class{}; 92 | window_class.hCursor = LoadCursor(nullptr, IDC_ARROW); 93 | window_class.lpszClassName = kWindowClassName; 94 | window_class.style = CS_HREDRAW | CS_VREDRAW; 95 | window_class.cbClsExtra = 0; 96 | window_class.cbWndExtra = 0; 97 | window_class.hInstance = GetModuleHandle(nullptr); 98 | window_class.hIcon = 99 | LoadIcon(window_class.hInstance, MAKEINTRESOURCE(IDI_APP_ICON)); 100 | window_class.hbrBackground = 0; 101 | window_class.lpszMenuName = nullptr; 102 | window_class.lpfnWndProc = Win32Window::WndProc; 103 | RegisterClass(&window_class); 104 | class_registered_ = true; 105 | } 106 | return kWindowClassName; 107 | } 108 | 109 | void WindowClassRegistrar::UnregisterWindowClass() { 110 | UnregisterClass(kWindowClassName, nullptr); 111 | class_registered_ = false; 112 | } 113 | 114 | Win32Window::Win32Window() { 115 | ++g_active_window_count; 116 | } 117 | 118 | Win32Window::~Win32Window() { 119 | --g_active_window_count; 120 | Destroy(); 121 | } 122 | 123 | bool Win32Window::Create(const std::wstring& title, 124 | const Point& origin, 125 | const Size& size) { 126 | Destroy(); 127 | 128 | const wchar_t* window_class = 129 | WindowClassRegistrar::GetInstance()->GetWindowClass(); 130 | 131 | const POINT target_point = {static_cast(origin.x), 132 | static_cast(origin.y)}; 133 | HMONITOR monitor = MonitorFromPoint(target_point, MONITOR_DEFAULTTONEAREST); 134 | UINT dpi = FlutterDesktopGetDpiForMonitor(monitor); 135 | double scale_factor = dpi / 96.0; 136 | 137 | HWND window = CreateWindow( 138 | window_class, title.c_str(), WS_OVERLAPPEDWINDOW, 139 | Scale(origin.x, scale_factor), Scale(origin.y, scale_factor), 140 | Scale(size.width, scale_factor), Scale(size.height, scale_factor), 141 | nullptr, nullptr, GetModuleHandle(nullptr), this); 142 | 143 | if (!window) { 144 | return false; 145 | } 146 | 147 | UpdateTheme(window); 148 | 149 | return OnCreate(); 150 | } 151 | 152 | bool Win32Window::Show() { 153 | return ShowWindow(window_handle_, SW_SHOWNORMAL); 154 | } 155 | 156 | // static 157 | LRESULT CALLBACK Win32Window::WndProc(HWND const window, 158 | UINT const message, 159 | WPARAM const wparam, 160 | LPARAM const lparam) noexcept { 161 | if (message == WM_NCCREATE) { 162 | auto window_struct = reinterpret_cast(lparam); 163 | SetWindowLongPtr(window, GWLP_USERDATA, 164 | reinterpret_cast(window_struct->lpCreateParams)); 165 | 166 | auto that = static_cast(window_struct->lpCreateParams); 167 | EnableFullDpiSupportIfAvailable(window); 168 | that->window_handle_ = window; 169 | } else if (Win32Window* that = GetThisFromHandle(window)) { 170 | return that->MessageHandler(window, message, wparam, lparam); 171 | } 172 | 173 | return DefWindowProc(window, message, wparam, lparam); 174 | } 175 | 176 | LRESULT 177 | Win32Window::MessageHandler(HWND hwnd, 178 | UINT const message, 179 | WPARAM const wparam, 180 | LPARAM const lparam) noexcept { 181 | switch (message) { 182 | case WM_DESTROY: 183 | window_handle_ = nullptr; 184 | Destroy(); 185 | if (quit_on_close_) { 186 | PostQuitMessage(0); 187 | } 188 | return 0; 189 | 190 | case WM_DPICHANGED: { 191 | auto newRectSize = reinterpret_cast(lparam); 192 | LONG newWidth = newRectSize->right - newRectSize->left; 193 | LONG newHeight = newRectSize->bottom - newRectSize->top; 194 | 195 | SetWindowPos(hwnd, nullptr, newRectSize->left, newRectSize->top, newWidth, 196 | newHeight, SWP_NOZORDER | SWP_NOACTIVATE); 197 | 198 | return 0; 199 | } 200 | case WM_SIZE: { 201 | RECT rect = GetClientArea(); 202 | if (child_content_ != nullptr) { 203 | // Size and position the child window. 204 | MoveWindow(child_content_, rect.left, rect.top, rect.right - rect.left, 205 | rect.bottom - rect.top, TRUE); 206 | } 207 | return 0; 208 | } 209 | 210 | case WM_ACTIVATE: 211 | if (child_content_ != nullptr) { 212 | SetFocus(child_content_); 213 | } 214 | return 0; 215 | 216 | case WM_DWMCOLORIZATIONCOLORCHANGED: 217 | UpdateTheme(hwnd); 218 | return 0; 219 | } 220 | 221 | return DefWindowProc(window_handle_, message, wparam, lparam); 222 | } 223 | 224 | void Win32Window::Destroy() { 225 | OnDestroy(); 226 | 227 | if (window_handle_) { 228 | DestroyWindow(window_handle_); 229 | window_handle_ = nullptr; 230 | } 231 | if (g_active_window_count == 0) { 232 | WindowClassRegistrar::GetInstance()->UnregisterWindowClass(); 233 | } 234 | } 235 | 236 | Win32Window* Win32Window::GetThisFromHandle(HWND const window) noexcept { 237 | return reinterpret_cast( 238 | GetWindowLongPtr(window, GWLP_USERDATA)); 239 | } 240 | 241 | void Win32Window::SetChildContent(HWND content) { 242 | child_content_ = content; 243 | SetParent(content, window_handle_); 244 | RECT frame = GetClientArea(); 245 | 246 | MoveWindow(content, frame.left, frame.top, frame.right - frame.left, 247 | frame.bottom - frame.top, true); 248 | 249 | SetFocus(child_content_); 250 | } 251 | 252 | RECT Win32Window::GetClientArea() { 253 | RECT frame; 254 | GetClientRect(window_handle_, &frame); 255 | return frame; 256 | } 257 | 258 | HWND Win32Window::GetHandle() { 259 | return window_handle_; 260 | } 261 | 262 | void Win32Window::SetQuitOnClose(bool quit_on_close) { 263 | quit_on_close_ = quit_on_close; 264 | } 265 | 266 | bool Win32Window::OnCreate() { 267 | // No-op; provided for subclasses. 268 | return true; 269 | } 270 | 271 | void Win32Window::OnDestroy() { 272 | // No-op; provided for subclasses. 273 | } 274 | 275 | void Win32Window::UpdateTheme(HWND const window) { 276 | DWORD light_mode; 277 | DWORD light_mode_size = sizeof(light_mode); 278 | LSTATUS result = RegGetValue(HKEY_CURRENT_USER, kGetPreferredBrightnessRegKey, 279 | kGetPreferredBrightnessRegValue, 280 | RRF_RT_REG_DWORD, nullptr, &light_mode, 281 | &light_mode_size); 282 | 283 | if (result == ERROR_SUCCESS) { 284 | BOOL enable_dark_mode = light_mode == 0; 285 | DwmSetWindowAttribute(window, DWMWA_USE_IMMERSIVE_DARK_MODE, 286 | &enable_dark_mode, sizeof(enable_dark_mode)); 287 | } 288 | } 289 | -------------------------------------------------------------------------------- /example/windows/runner/win32_window.h: -------------------------------------------------------------------------------- 1 | #ifndef RUNNER_WIN32_WINDOW_H_ 2 | #define RUNNER_WIN32_WINDOW_H_ 3 | 4 | #include 5 | 6 | #include 7 | #include 8 | #include 9 | 10 | // A class abstraction for a high DPI-aware Win32 Window. Intended to be 11 | // inherited from by classes that wish to specialize with custom 12 | // rendering and input handling 13 | class Win32Window { 14 | public: 15 | struct Point { 16 | unsigned int x; 17 | unsigned int y; 18 | Point(unsigned int x, unsigned int y) : x(x), y(y) {} 19 | }; 20 | 21 | struct Size { 22 | unsigned int width; 23 | unsigned int height; 24 | Size(unsigned int width, unsigned int height) 25 | : width(width), height(height) {} 26 | }; 27 | 28 | Win32Window(); 29 | virtual ~Win32Window(); 30 | 31 | // Creates a win32 window with |title| that is positioned and sized using 32 | // |origin| and |size|. New windows are created on the default monitor. Window 33 | // sizes are specified to the OS in physical pixels, hence to ensure a 34 | // consistent size this function will scale the inputted width and height as 35 | // as appropriate for the default monitor. The window is invisible until 36 | // |Show| is called. Returns true if the window was created successfully. 37 | bool Create(const std::wstring& title, const Point& origin, const Size& size); 38 | 39 | // Show the current window. Returns true if the window was successfully shown. 40 | bool Show(); 41 | 42 | // Release OS resources associated with window. 43 | void Destroy(); 44 | 45 | // Inserts |content| into the window tree. 46 | void SetChildContent(HWND content); 47 | 48 | // Returns the backing Window handle to enable clients to set icon and other 49 | // window properties. Returns nullptr if the window has been destroyed. 50 | HWND GetHandle(); 51 | 52 | // If true, closing this window will quit the application. 53 | void SetQuitOnClose(bool quit_on_close); 54 | 55 | // Return a RECT representing the bounds of the current client area. 56 | RECT GetClientArea(); 57 | 58 | protected: 59 | // Processes and route salient window messages for mouse handling, 60 | // size change and DPI. Delegates handling of these to member overloads that 61 | // inheriting classes can handle. 62 | virtual LRESULT MessageHandler(HWND window, 63 | UINT const message, 64 | WPARAM const wparam, 65 | LPARAM const lparam) noexcept; 66 | 67 | // Called when CreateAndShow is called, allowing subclass window-related 68 | // setup. Subclasses should return false if setup fails. 69 | virtual bool OnCreate(); 70 | 71 | // Called when Destroy is called. 72 | virtual void OnDestroy(); 73 | 74 | private: 75 | friend class WindowClassRegistrar; 76 | 77 | // OS callback called by message pump. Handles the WM_NCCREATE message which 78 | // is passed when the non-client area is being created and enables automatic 79 | // non-client DPI scaling so that the non-client area automatically 80 | // responds to changes in DPI. All other messages are handled by 81 | // MessageHandler. 82 | static LRESULT CALLBACK WndProc(HWND const window, 83 | UINT const message, 84 | WPARAM const wparam, 85 | LPARAM const lparam) noexcept; 86 | 87 | // Retrieves a class instance pointer for |window| 88 | static Win32Window* GetThisFromHandle(HWND const window) noexcept; 89 | 90 | // Update the window frame's theme to match the system theme. 91 | static void UpdateTheme(HWND const window); 92 | 93 | bool quit_on_close_ = false; 94 | 95 | // window handle for top level window. 96 | HWND window_handle_ = nullptr; 97 | 98 | // window handle for hosted content. 99 | HWND child_content_ = nullptr; 100 | }; 101 | 102 | #endif // RUNNER_WIN32_WINDOW_H_ 103 | -------------------------------------------------------------------------------- /images/shader_buffers.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/alnitak/shader_buffers/4e270089a0606f98568e04539edad6ec0caba482/images/shader_buffers.gif -------------------------------------------------------------------------------- /lib/shader_buffers.dart: -------------------------------------------------------------------------------- 1 | /// 2 | library shader_buffers; 3 | 4 | export 'src/i_channel.dart'; 5 | export 'src/layer_buffer.dart'; 6 | export 'src/shader_buffers.dart'; 7 | export 'src/uniforms.dart'; 8 | -------------------------------------------------------------------------------- /lib/src/custom_child.dart: -------------------------------------------------------------------------------- 1 | // ignore_for_file: public_member_api_docs 2 | 3 | import 'dart:ui' as ui; 4 | 5 | import 'package:flutter/material.dart'; 6 | import 'package:flutter/rendering.dart'; 7 | import 'package:shader_buffers/src/i_channel.dart'; 8 | 9 | /// Highly inspired from 10 | /// https://github.com/jonahwilliams/flutter_shaders/blob/main/lib/src/animated_sampler.dart 11 | /// by Jonah Williams 12 | 13 | /// RenderBox which allow to store the snapshot of its child 14 | /// into [IChannel.childTexture] to be used as texture. 15 | /// When enable the snapshot is performed otherwise the child 16 | /// acts normal. 17 | class CustomChildBuilder extends SingleChildRenderObjectWidget { 18 | /// 19 | const CustomChildBuilder({ 20 | required this.enabled, 21 | required this.layerChannel, 22 | super.child, 23 | super.key, 24 | }); 25 | 26 | final bool enabled; 27 | final IChannel layerChannel; 28 | 29 | @override 30 | RenderObject createRenderObject(BuildContext context) { 31 | return _RenderCustomChildWidget( 32 | devicePixelRatio: MediaQuery.devicePixelRatioOf(context), 33 | layerChannel: layerChannel, 34 | enabled: enabled, 35 | ); 36 | } 37 | 38 | @override 39 | void updateRenderObject( 40 | BuildContext context, 41 | covariant RenderObject renderObject, 42 | ) { 43 | (renderObject as _RenderCustomChildWidget) 44 | ..devicePixelRatio = MediaQuery.devicePixelRatioOf(context) 45 | ..layerChannel = layerChannel 46 | ..enabled = enabled; 47 | } 48 | } 49 | 50 | /// 51 | class _RenderCustomChildWidget extends RenderProxyBox { 52 | /// 53 | _RenderCustomChildWidget({ 54 | required double devicePixelRatio, 55 | required IChannel layerChannel, 56 | required bool enabled, 57 | }) : _devicePixelRatio = devicePixelRatio, 58 | _layerChannel = layerChannel, 59 | _enabled = enabled; 60 | 61 | /// The device pixel ratio used to create the child image. 62 | double get devicePixelRatio => _devicePixelRatio; 63 | double _devicePixelRatio; 64 | 65 | set devicePixelRatio(double value) { 66 | if (value == devicePixelRatio) { 67 | return; 68 | } 69 | _devicePixelRatio = value; 70 | markNeedsCompositedLayerUpdate(); 71 | } 72 | 73 | bool get enabled => _enabled; 74 | bool _enabled; 75 | 76 | set enabled(bool value) { 77 | if (value == enabled) { 78 | return; 79 | } 80 | _enabled = value; 81 | markNeedsPaint(); 82 | markNeedsCompositingBitsUpdate(); 83 | } 84 | 85 | /// 86 | IChannel get layerChannel => _layerChannel; 87 | IChannel _layerChannel; 88 | 89 | set layerChannel(IChannel value) { 90 | if (value == layerChannel) { 91 | return; 92 | } 93 | _layerChannel = value; 94 | markNeedsCompositedLayerUpdate(); 95 | } 96 | 97 | @override 98 | bool get isRepaintBoundary => alwaysNeedsCompositing; 99 | 100 | @override 101 | bool get alwaysNeedsCompositing => enabled; 102 | 103 | @override 104 | OffsetLayer updateCompositedLayer({ 105 | required covariant _CustomChildLayer? oldLayer, 106 | }) { 107 | final layer = (oldLayer ?? _CustomChildLayer(layerChannel)) 108 | ..size = size 109 | ..devicePixelRatio = devicePixelRatio; 110 | return layer; 111 | } 112 | 113 | @override 114 | void paint(PaintingContext context, Offset offset) { 115 | if (size.isEmpty) { 116 | return; 117 | } 118 | assert(!_enabled || offset == Offset.zero, ''); 119 | return super.paint(context, offset); 120 | } 121 | } 122 | 123 | /// The layer that creates and save the [ui.Image] into the [layerChannel] 124 | class _CustomChildLayer extends OffsetLayer { 125 | _CustomChildLayer(this._layerChannel); 126 | 127 | ui.Picture? _lastPicture; 128 | 129 | Size get size => _size; 130 | Size _size = Size.zero; 131 | 132 | set size(Size value) { 133 | if (value == size) { 134 | return; 135 | } 136 | _size = value; 137 | markNeedsAddToScene(); 138 | } 139 | 140 | double get devicePixelRatio => _devicePixelRatio; 141 | double _devicePixelRatio = 1; 142 | 143 | set devicePixelRatio(double value) { 144 | if (value == devicePixelRatio) { 145 | return; 146 | } 147 | _devicePixelRatio = value; 148 | markNeedsAddToScene(); 149 | } 150 | 151 | IChannel get layerChannel => _layerChannel; 152 | IChannel _layerChannel; 153 | 154 | set layerChannel(IChannel value) { 155 | if (value == layerChannel) { 156 | return; 157 | } 158 | _layerChannel = value; 159 | markNeedsAddToScene(); 160 | } 161 | 162 | ui.Image _buildChildScene(Rect bounds, double pixelRatio) { 163 | final builder = ui.SceneBuilder(); 164 | final transform = Matrix4.diagonal3Values(pixelRatio, pixelRatio, 1); 165 | builder.pushTransform(transform.storage); 166 | addChildrenToScene(builder); 167 | builder.pop(); 168 | return builder.build().toImageSync( 169 | (pixelRatio * bounds.width).ceil(), 170 | (pixelRatio * bounds.height).ceil(), 171 | ); 172 | } 173 | 174 | @override 175 | void dispose() { 176 | _lastPicture?.dispose(); 177 | super.dispose(); 178 | } 179 | 180 | @override 181 | void addToScene(ui.SceneBuilder builder) { 182 | if (size.isEmpty) return; 183 | final image = _buildChildScene( 184 | offset & size, 185 | devicePixelRatio, 186 | ); 187 | final pictureRecorder = ui.PictureRecorder(); 188 | // final canvas = 189 | Canvas(pictureRecorder); 190 | try { 191 | _layerChannel.childTexture = image.clone(); 192 | } finally { 193 | image.dispose(); 194 | } 195 | final picture = pictureRecorder.endRecording(); 196 | _lastPicture?.dispose(); 197 | _lastPicture = picture; 198 | builder.addPicture(offset, picture); 199 | } 200 | } 201 | -------------------------------------------------------------------------------- /lib/src/i_channel.dart: -------------------------------------------------------------------------------- 1 | // ignore_for_file: public_member_api_docs, sort_constructors_first 2 | 3 | import 'dart:ui' as ui; 4 | import 'package:flutter/services.dart'; 5 | import 'package:flutter/widgets.dart'; 6 | import 'package:shader_buffers/src/layer_buffer.dart'; 7 | 8 | /// class to define the kind of channel textures that will 9 | /// be used by [LayerBuffer]. 10 | /// 11 | /// Only one of the parameters can be given. 12 | class IChannel { 13 | IChannel({ 14 | this.child, 15 | this.buffer, 16 | this.assetsTexturePath, 17 | this.texture, 18 | this.isSelf = false, 19 | }) : assert( 20 | !(!isSelf && 21 | child != null && 22 | buffer != null && 23 | assetsTexturePath != null && 24 | texture != null), 25 | 'Only [isSelf] or [child] or [buffer] or [assetsTexturePath] ' 26 | ' or [texture] must be given!', 27 | ); 28 | 29 | /// the widget used by this [IChannel] 30 | final Widget? child; 31 | 32 | /// the assets image if [child] exists 33 | ui.Image? childTexture; 34 | 35 | final bool isSelf; 36 | 37 | /// the buffer used by this [IChannel] 38 | LayerBuffer? buffer; 39 | 40 | /// the assets image path used by this [IChannel] 41 | String? assetsTexturePath; 42 | 43 | /// the assets image if [assetsTexturePath] exists 44 | ui.Image? texture; 45 | 46 | /// all textures loaded? 47 | bool isInited = false; 48 | 49 | // ignore: use_setters_to_change_properties 50 | void updateTexture(ui.Image image) => texture = image; 51 | 52 | /// eventually load textures 53 | Future init() async { 54 | if (isInited) return true; 55 | 56 | isInited = true; 57 | 58 | if (texture != null) return isInited; 59 | 60 | // Load the assets texture 61 | if (assetsTexturePath != null) { 62 | try { 63 | final assetImageByteData = await rootBundle.load(assetsTexturePath!); 64 | final codec = await ui.instantiateImageCodec( 65 | assetImageByteData.buffer.asUint8List(), 66 | ); 67 | texture = (await codec.getNextFrame()).image; 68 | } catch (e) { 69 | debugPrint('Error loading assets image! $e'); 70 | isInited = false; 71 | } 72 | } 73 | 74 | return isInited; 75 | } 76 | } 77 | -------------------------------------------------------------------------------- /lib/src/imouse.dart: -------------------------------------------------------------------------------- 1 | import 'dart:ui'; 2 | 3 | /// The `iMouse` values to pass to the shader `iMouse` uniform 4 | class IMouse { 5 | /// The pointer position 6 | /// Shows how to use the mouse input (only left button supported): 7 | /// 8 | /// mouse.xy = mouse position during last button down 9 | /// abs(mouse.zw) = mouse position during last button click 10 | /// sign(mouse.z) = button is down 11 | /// sign(mouse.w) = button is clicked 12 | /// https://www.shadertoy.com/view/llySRh 13 | /// https://www.shadertoy.com/view/Mss3zH 14 | IMouse(this.x, this.y, this.z, this.w); 15 | 16 | /// Default values 17 | double x = 1; 18 | 19 | /// Default values 20 | double y = 1; 21 | 22 | /// Default values 23 | double z = 1; 24 | 25 | /// Default values 26 | double w = -1; 27 | 28 | /// Default values 29 | static IMouse zero = IMouse(1, 1, 1, -1); 30 | 31 | @override 32 | String toString() { 33 | return 'x: $x y: $y z: $z w: $w'; 34 | } 35 | } 36 | 37 | /// The current pointer state 38 | /// 39 | enum PointerState { 40 | /// 41 | onPointerDown, 42 | 43 | /// 44 | onPointerMove, 45 | 46 | /// 47 | onPointerUp, 48 | 49 | /// 50 | none, 51 | } 52 | 53 | /// Class to control user tap and pan to manage the `vec4 iMouse` uniform 54 | /// 55 | class IMouseController { 56 | /// Controllore to manage the `vec4 iMouse` uniform 57 | IMouseController({ 58 | required this.width, 59 | required this.height, 60 | }) : iMouse = IMouse.zero, 61 | startingPos = Offset.zero; 62 | 63 | /// The current [iMouse] 64 | IMouse iMouse; 65 | 66 | /// Get the current [iMouse] normalized to 0-1 67 | IMouse get iMouseNormalized => getIMouseNormalized(); 68 | 69 | /// The width of the widget 70 | final double width; 71 | 72 | /// The heigth of the widget 73 | final double height; 74 | 75 | /// The position when the user tap on the shader widget 76 | Offset startingPos; 77 | 78 | /// The current state of mouse interaction 79 | PointerState currState = PointerState.none; 80 | 81 | /// Update [iMouse] when the user starts to pan 82 | void start(Offset position) { 83 | startingPos = position; 84 | iMouse = getIMouseValue(startingPos, PointerState.onPointerDown); 85 | updatePointer(PointerState.onPointerDown); 86 | } 87 | 88 | /// Update [iMouse] when the user pan 89 | void update(Offset position) { 90 | iMouse = getIMouseValue(position, PointerState.onPointerMove); 91 | updatePointer(PointerState.onPointerMove); 92 | } 93 | 94 | /// Update [iMouse] when the user ends to pan 95 | void end() { 96 | iMouse = 97 | getIMouseValue(Offset(iMouse.x, iMouse.y), PointerState.onPointerUp); 98 | updatePointer(PointerState.onPointerUp); 99 | } 100 | 101 | /// Get the iMouse vec4 102 | IMouse getIMouseValue( 103 | Offset pos, 104 | PointerState eventType, 105 | ) { 106 | return IMouse( 107 | pos.dx, 108 | pos.dy, 109 | eventType == PointerState.onPointerDown || 110 | eventType == PointerState.onPointerMove 111 | ? startingPos.dx 112 | : -startingPos.dx, 113 | -startingPos.dy, 114 | ); 115 | } 116 | 117 | /// get the mouse coordinates in the 0~1 range 118 | IMouse getIMouseNormalized() { 119 | return IMouse( 120 | iMouse.x / width, 121 | iMouse.y / height, 122 | (iMouse.w / width).abs(), 123 | (iMouse.z / height).abs(), 124 | ); 125 | } 126 | 127 | /// update iMouse when user interact 128 | void updatePointer(PointerState state) { 129 | currState = state; 130 | if (state == PointerState.onPointerUp) { 131 | currState = PointerState.none; 132 | } 133 | } 134 | 135 | @override 136 | String toString() => 'IMouseController(iMouse: $iMouse)'; 137 | } 138 | -------------------------------------------------------------------------------- /lib/src/layer_buffer.dart: -------------------------------------------------------------------------------- 1 | // ignore_for_file: public_member_api_docs, sort_constructors_first 2 | import 'dart:ui' as ui; 3 | import 'dart:ui'; 4 | 5 | import 'package:flutter/services.dart'; 6 | import 'package:flutter/widgets.dart'; 7 | import 'package:shader_buffers/src/i_channel.dart'; 8 | 9 | import 'package:shader_buffers/src/imouse.dart'; 10 | import 'package:shader_buffers/src/uniforms.dart'; 11 | 12 | /// Class used to define a buffers or the main image layer. 13 | /// 14 | class LayerBuffer { 15 | /// Class used to define a buffers or the main image. 16 | /// 17 | /// It takes the [shaderAssetsName] and a list of [IChannel] 18 | /// used as textures. 19 | /// 20 | /// ```dart 21 | /// final bufferA = LayerBuffer( 22 | /// shaderAssetsName: 'assets/shaders/shader3_bufferA.glsl', 23 | /// ); 24 | /// // you can then set optional channels: 25 | /// bufferA.setChannels([ 26 | /// IChannel(assetsTexturePath: 'assets/bricks.jpg'), 27 | /// ]); 28 | /// ``` 29 | LayerBuffer({ 30 | required this.shaderAssetsName, 31 | this.scaleRenderView = 1, 32 | this.uniforms, 33 | }) : assert(scaleRenderView > 0, 'scaleRenderView must be > 0'); 34 | 35 | /// The fragment shader source to use 36 | final String shaderAssetsName; 37 | 38 | /// Scale the rendered window. 39 | /// 40 | /// It happens that a shader could be computationally heavy. 41 | /// You can reduce the resolution of the rendered window: by setting 42 | /// [scaleRenderView] to 0.5 for example, you will get a half 43 | /// resolution image. But this could cause pixelation. If you want instead 44 | /// to get a higher resolution image, ie for zooming, you can set the value 45 | /// to 2. 46 | final double scaleRenderView; 47 | 48 | /// additional uniforms 49 | Uniforms? uniforms; 50 | 51 | /// the channels this shader will use 52 | List? channels; 53 | 54 | /// the fragment program used by this layer 55 | ui.FragmentProgram? _program; 56 | 57 | /// the fragment shader used by this layer 58 | ui.FragmentShader? _shader; 59 | 60 | /// The last image computed 61 | ui.Image? layerImage; 62 | 63 | /// Used internally when shader or channel are not yet initialized 64 | ui.Image? blankImage; 65 | 66 | double _deviceAspectRatio = 1; 67 | 68 | List conditionalOperation = []; 69 | 70 | /// set channels of this layer 71 | void setChannels(List chan) { 72 | channels = chan.toList(); 73 | } 74 | 75 | /// Initialize the shader and the textures if any 76 | Future init() async { 77 | var loaded = true; 78 | loaded = await _loadShader(); 79 | loaded &= await _loadAssetsTextures(); 80 | _deviceAspectRatio = 81 | PlatformDispatcher.instance.views.first.devicePixelRatio; 82 | debugPrint('LayerBuffer.init() loaded: $loaded $shaderAssetsName'); 83 | return loaded; 84 | } 85 | 86 | /// load fragment shader 87 | Future _loadShader() async { 88 | try { 89 | _program = await ui.FragmentProgram.fromAsset(shaderAssetsName); 90 | _shader = _program?.fragmentShader(); 91 | } on Exception catch (e) { 92 | debugPrint('Cannot load shader $shaderAssetsName! $e'); 93 | return false; 94 | } 95 | return true; 96 | } 97 | 98 | /// load the blank image and initialize all channel textures 99 | Future _loadAssetsTextures() async { 100 | /// setup blankImage. Displayed when the layerImage is not yet available 101 | try { 102 | final assetImageByteData = await rootBundle 103 | .load('packages/shader_buffers/assets/blank_16x16.bmp'); 104 | final codec = await ui.instantiateImageCodec( 105 | assetImageByteData.buffer.asUint8List(), 106 | ); 107 | blankImage = (await codec.getNextFrame()).image; 108 | } on Exception catch (e) { 109 | debugPrint('Cannot load blankImage! $e'); 110 | return false; 111 | } 112 | 113 | // Load all the assets textures if any 114 | if (channels == null) return true; 115 | for (var i = 0; i < channels!.length; ++i) { 116 | for (final element in channels!) { 117 | if (!element.isInited) { 118 | if (!await channels![i].init()) return false; 119 | } 120 | } 121 | } 122 | return true; 123 | } 124 | 125 | void dispose() { 126 | // _shader?.dispose(); 127 | layerImage?.dispose(); 128 | layerImage = null; 129 | } 130 | 131 | /// Draw the shader into [layerImage]. 132 | /// 133 | /// Using the same [layerImage] of this layer as the input texture, 134 | /// cause a memory leak: 135 | /// https://github.com/flutter/flutter/issues/138627 136 | /// 137 | /// Clear unfreed cached mem on linux 138 | /// sync && echo 3 | sudo tee /proc/sys/vm/drop_caches 139 | void computeLayer( 140 | Size iResolution, 141 | double iTime, 142 | double iFrame, 143 | IMouse iMouse, 144 | ) { 145 | if (_shader == null) return; 146 | 147 | final realPixels = iResolution * _deviceAspectRatio * scaleRenderView; 148 | 149 | _shader! 150 | ..setFloat(0, realPixels.width) // iResolution 151 | ..setFloat(1, realPixels.height) 152 | ..setFloat(2, iTime) // iTime 153 | ..setFloat(3, iFrame) // iFrame 154 | ..setFloat(4, iMouse.x) // iMouse 155 | ..setFloat(5, iMouse.y) 156 | ..setFloat(6, iMouse.z) 157 | ..setFloat(7, iMouse.w); 158 | 159 | /// eventually add more floats uniforms from [floatsUniforms] 160 | for (var i = 0; i < (uniforms?.uniforms.length ?? 0); i++) { 161 | _shader!.setFloat(i + 8, uniforms!.uniforms[i].value); 162 | } 163 | 164 | /// eventually add sampler2D uniforms 165 | for (var i = 0; i < (channels?.length ?? 0); i++) { 166 | if (channels![i].assetsTexturePath != null) { 167 | _shader!.setImageSampler(i, channels![i].texture ?? blankImage!); 168 | } else if (channels![i].child != null) { 169 | _shader!.setImageSampler(i, channels![i].childTexture ?? blankImage!); 170 | } else { 171 | ui.Image? img; 172 | if (channels![i].isSelf) { 173 | img = layerImage ?? blankImage!; 174 | } else { 175 | if (channels![i].buffer?.layerImage == null) { 176 | img = channels![i].texture; 177 | } 178 | } 179 | _shader!.setImageSampler(i, img ?? blankImage!); 180 | } 181 | } 182 | 183 | /// While this issue 184 | /// https://github.com/flutter/flutter/issues/138627 185 | /// is still open, here the [toImage] will be used instead of [toImageSync] 186 | /// 187 | // layerImage?.dispose(); 188 | // layerImage = null; 189 | 190 | // final recorder = ui.PictureRecorder(); 191 | // ui.Canvas(recorder).drawRect( 192 | // Offset.zero & iResolution, 193 | // ui.Paint()..shader = _shader, 194 | // ); 195 | // final picture = recorder.endRecording(); 196 | // layerImage = picture.toImageSync( 197 | // iResolution.width.ceil(), 198 | // iResolution.height.ceil(), 199 | // ); 200 | // picture.dispose(); 201 | 202 | final recorder = ui.PictureRecorder(); 203 | ui.Canvas(recorder).drawRect( 204 | Offset.zero & realPixels, 205 | ui.Paint()..shader = _shader, 206 | ); 207 | final picture = recorder.endRecording(); 208 | picture 209 | .toImage( 210 | realPixels.width.ceil(), 211 | realPixels.height.ceil(), 212 | ) 213 | .then((value) => layerImage = value); 214 | picture.dispose(); 215 | 216 | for (final f in conditionalOperation) { 217 | f(); 218 | } 219 | } 220 | } 221 | -------------------------------------------------------------------------------- /lib/src/uniforms.dart: -------------------------------------------------------------------------------- 1 | // ignore_for_file: public_member_api_docs 2 | 3 | import 'package:flutter/material.dart'; 4 | 5 | /// The uniform class 6 | class Uniform { 7 | Uniform({ 8 | required this.value, 9 | required this.name, 10 | required this.range, 11 | required this.defaultValue, 12 | }); 13 | final RangeValues range; 14 | final double defaultValue; 15 | final String name; 16 | double value; 17 | 18 | @override 19 | String toString() => 'Uniform [$name]: $value'; 20 | } 21 | 22 | /// The uniforms list with method helpers 23 | class Uniforms { 24 | Uniforms(this.uniforms); 25 | 26 | final List uniforms; 27 | 28 | void setValue(String name, double value) { 29 | uniforms.firstWhere((element) => element.name == name).value = value; 30 | } 31 | 32 | double getValue(String name) { 33 | return uniforms.firstWhere((element) => element.name == name).value; 34 | } 35 | 36 | void setValueByIndex(int index, double value) { 37 | assert( 38 | index >= 0 && index < uniforms.length, 39 | 'Uniform index out of range!', 40 | ); 41 | uniforms[index].value = value; 42 | } 43 | 44 | double getValueByIndex(int index) { 45 | assert( 46 | index >= 0 && index < uniforms.length, 47 | 'Uniform index out of range!', 48 | ); 49 | return uniforms[index].value; 50 | } 51 | 52 | List getDoubleList() { 53 | return List.generate(uniforms.length, (index) => uniforms[index].value); 54 | } 55 | 56 | void setDoubleList(List values) { 57 | assert(values.length == uniforms.length, "Uniform length doesn't match!"); 58 | for (var i = 0; i < values.length; i++) { 59 | uniforms[i].value = values[i]; 60 | } 61 | } 62 | 63 | Uniform getUniformByName(String name) { 64 | return uniforms.firstWhere((element) => element.name == name); 65 | } 66 | } 67 | -------------------------------------------------------------------------------- /pubspec.yaml: -------------------------------------------------------------------------------- 1 | name: shader_buffers 2 | description: >- 3 | Using shaders to feed a shader. Make shaders simplier 4 | to use with a focus on the ShaderToy.com website. 5 | version: 1.1.2 6 | homepage: https://github.com/alnitak/shader_buffers 7 | issue_tracker: https://github.com/alnitak/shader_buffers/issues 8 | repository: https://github.com/alnitak/shader_buffers 9 | topics: 10 | - shader 11 | - shadertoy 12 | 13 | environment: 14 | sdk: '>=3.1.5 <4.0.0' 15 | flutter: ">=1.17.0" 16 | 17 | dependencies: 18 | flutter: 19 | sdk: flutter 20 | 21 | dev_dependencies: 22 | flutter_lints: ^3.0.1 23 | 24 | flutter_test: 25 | sdk: flutter 26 | 27 | very_good_analysis: ^5.1.0 28 | 29 | flutter: 30 | 31 | assets: 32 | - assets/ 33 | 34 | -------------------------------------------------------------------------------- /test/shader_buffers_test.dart: -------------------------------------------------------------------------------- 1 | import 'package:flutter_test/flutter_test.dart'; 2 | 3 | void main() { 4 | test('adds one to input values', () {}); 5 | } 6 | --------------------------------------------------------------------------------