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Mike Griese b140299e50
Implement user-specified pixel shaders, redux (#8565)
Co-authored-by: mrange <marten_range@hotmail.com>

I loved the pixel shaders in #7058, but that PR needed a bit of polish
to be ready for ingestion. This PR is almost _exactly_ that PR, with
some small changes.

* It adds a new pre-profile setting `"experimental.pixelShaderPath"`,
  which lets the user set a pixel shader to use with the Terminal.
    - CHANGED FROM #7058: It does _not_ add any built-in shaders.
    - CHANGED FROM #7058: it will _override_
      `experimental.retroTerminalEffect`
* It adds a bunch of sample shaders in `samples/shaders`. Included: 
    - A NOP shader as a base to build from.
    - An "invert" shader that inverts the colors, as a simple example
    - An "grayscale" shader that converts all colors to grayscale, as a
      simple example
    - An "raster bars" shader that draws some colored bars on the screen
      with a drop shadow, as a more involved example
    - The original retro terminal effects, as a more involved example
    - It also includes a broken shader, as an example of what heppens
      when the shader fails to compile
    - CHANGED FROM #7058: It does _not_ add the "retroII" shader we were
      all worried about.
* When a shader fails to be found or fails to compile, we'll display an
  error dialog to the user with a relevant error message.
    - CHANGED FROM #7058: Originally, #7058 would display "error bars"
      on the screen. I've removed that, and had the Terminal disable the
      shader entirely then.
* Renames the `toggleRetroEffect` action to `toggleShaderEffect`.
  (`toggleRetroEffect` is now an alias to `toggleShaderEffect`). This
  action will turn the shader OR the retro effects on/off. 

`toggleShaderEffect` works the way you'd expect it to, but the mental
math on _how_ is a little weird. The logic is basically:

```
useShader = shaderEffectsEnabled ? 
                (pixelShaderProvided ? 
                    pixelShader : 
                    (retroEffectEnabled ? 
                        retroEffect : null
                    )
                ) : 
                null
```

and `toggleShaderEffect` toggles `shaderEffectsEnabled`.

* If you've got both a shader and retro enabled, `toggleShaderEffect`
  will toggle between the shader on/off.
* If you've got a shader and retro disabled, `toggleShaderEffect` will
  toggle between the shader on/off.

References #6191
References #7058

Closes #7013

Closes #3930 "Add setting to retro terminal shader to control blur
radius, color" 
Closes #3929 "Add setting to retro terminal shader to enable drawing
scanlines" 
     - At this point, just roll your own version of the shader.
2020-12-15 20:40:22 +00:00
.github Implement user-specified pixel shaders, redux (#8565) 2020-12-15 20:40:22 +00:00
.nuget Update razzle to use vswhere (#13) (#606) 2019-05-10 10:40:25 -07:00
build Delete the old PackageES code signing configs (#8536) 2020-12-09 12:50:42 -08:00
dep Update clang-format to 10.0 (#7389) 2020-08-25 17:15:43 +00:00
doc Implement user-specified pixel shaders, redux (#8565) 2020-12-15 20:40:22 +00:00
oss Add a subset of boost (#8492) 2020-12-05 01:25:55 +00:00
res Run all images through ImgBot (#8169) 2020-11-05 18:03:40 -08:00
samples Implement user-specified pixel shaders, redux (#8565) 2020-12-15 20:40:22 +00:00
src Implement user-specified pixel shaders, redux (#8565) 2020-12-15 20:40:22 +00:00
tools Fix the path to the local unittests in runut (#8499) 2020-12-04 10:08:40 -08:00
.clang-format Update clang-format to 10.0 (#7389) 2020-08-25 17:15:43 +00:00
.editorconfig add .editorconfig file (#585) 2019-05-24 18:20:17 +00:00
.gitattributes Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
.gitignore Scale box drawing glyphs to fit cells for visual bliss (#5743) 2020-05-08 14:09:32 -07:00
.gitmodules Lowercase GH org name in .gitmodules (#629) 2019-05-09 12:19:45 -07:00
.vsconfig Switch away from OS version detection for DirectWrite things (#2065) 2019-07-24 09:57:13 -07:00
CODE_OF_CONDUCT.md doc: update CODE_OF_CONDUCT.md (#4816) 2020-03-05 10:18:36 -08:00
common.openconsole.props Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
consolegit2gitfilters.json Reflect OS build fixes on 7b489128ac back to inbox 2020-06-04 22:09:17 +00:00
CONTRIBUTING.md Prepare for the primary branch name to change to main (#7985) 2020-10-21 17:29:36 -07:00
custom.props version: bump to 1.6 on main 2020-11-09 15:17:40 -08:00
dirs Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
LICENSE Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00
NOTICE.md Add a subset of boost (#8492) 2020-12-05 01:25:55 +00:00
NuGet.Config Helix Testing (#6992) 2020-08-18 18:23:24 +00:00
OpenConsole.sln Introduce the Terminal Settings Editor (#8048) 2020-12-11 13:47:10 -08:00
README.md Prepare for the primary branch name to change to main (#7985) 2020-10-21 17:29:36 -07:00
SECURITY.md doc: fix a small issue for #hacktoberfest (#3057) 2019-10-04 13:54:13 -07:00
SUPPORT.md Prepare for the primary branch name to change to main (#7985) 2020-10-21 17:29:36 -07:00

Welcome to the Windows Terminal, Console and Command-Line repo

This repository contains the source code for:

Related repositories include:

Installing and running Windows Terminal

🔴 Note: Windows Terminal requires Windows 10 1903 (build 18362) or later

Install the Windows Terminal from the Microsoft Store. This allows you to always be on the latest version when we release new builds with automatic upgrades.

This is our preferred method.

Other install methods

Via GitHub

For users who are unable to install Terminal from the Microsoft Store, Terminal builds can be manually downloaded from this repository's Releases page.

🔴 Note: If you install Terminal manually:

  • Terminal will not auto-update when new builds are released so you will need to regularly install the latest Terminal release to receive all the latest fixes and improvements!

Via Windows Package Manager CLI (aka winget)

winget users can download and install the latest Terminal release by installing the Microsoft.WindowsTerminal package:

winget install --id=Microsoft.WindowsTerminal -e

Via Chocolatey (unofficial)

Chocolatey users can download and install the latest Terminal release by installing the microsoft-windows-terminal package:

choco install microsoft-windows-terminal

To upgrade Windows Terminal using Chocolatey, run the following:

choco upgrade microsoft-windows-terminal

If you have any issues when installing/upgrading the package please go to the Windows Terminal package page and follow the Chocolatey triage process

Via Scoop (unofficial)

Scoop users can download and install the latest Terminal release by installing the windows-terminal package:

scoop bucket add extras
scoop install windows-terminal

To update Windows Terminal using Scoop, run the following:

scoop update windows-terminal

If you have any issues when installing/updating the package, please search for or report the same on the issues page of Scoop Extras bucket repository.


Windows Terminal 2.0 Roadmap

The plan for delivering Windows Terminal 2.0 is described here and will be updated as the project proceeds.

Project Build Status

Project Build Status
Terminal Terminal Build Status
ColorTool Colortool Build Status

Terminal & Console Overview

Please take a few minutes to review the overview below before diving into the code:

Windows Terminal

Windows Terminal is a new, modern, feature-rich, productive terminal application for command-line users. It includes many of the features most frequently requested by the Windows command-line community including support for tabs, rich text, globalization, configurability, theming & styling, and more.

The Terminal will also need to meet our goals and measures to ensure it remains fast and efficient, and doesn't consume vast amounts of memory or power.

The Windows Console Host

The Windows Console host, conhost.exe, is Windows' original command-line user experience. It also hosts Windows' command-line infrastructure and the Windows Console API server, input engine, rendering engine, user preferences, etc. The console host code in this repository is the actual source from which the conhost.exe in Windows itself is built.

Since taking ownership of the Windows command-line in 2014, the team added several new features to the Console, including background transparency, line-based selection, support for ANSI / Virtual Terminal sequences, 24-bit color, a Pseudoconsole ("ConPTY"), and more.

However, because Windows Console's primary goal is to maintain backward compatibility, we have been unable to add many of the features the community (and the team) have been wanting for the last several years including tabs, unicode text, and emoji.

These limitations led us to create the new Windows Terminal.

You can read more about the evolution of the command-line in general, and the Windows command-line specifically in this accompanying series of blog posts on the Command-Line team's blog.

Shared Components

While overhauling Windows Console, we modernized its codebase considerably, cleanly separating logical entities into modules and classes, introduced some key extensibility points, replaced several old, home-grown collections and containers with safer, more efficient STL containers, and made the code simpler and safer by using Microsoft's Windows Implementation Libraries - WIL.

This overhaul resulted in several of Console's key components being available for re-use in any terminal implementation on Windows. These components include a new DirectWrite-based text layout and rendering engine, a text buffer capable of storing both UTF-16 and UTF-8, a VT parser/emitter, and more.

Creating the new Windows Terminal

When we started planning the new Windows Terminal application, we explored and evaluated several approaches and technology stacks. We ultimately decided that our goals would be best met by continuing our investment in our C++ codebase, which would allow us to reuse several of the aforementioned modernized components in both the existing Console and the new Terminal. Further, we realized that this would allow us to build much of the Terminal's core itself as a reusable UI control that others can incorporate into their own applications.

The result of this work is contained within this repo and delivered as the Windows Terminal application you can download from the Microsoft Store, or directly from this repo's releases.


Resources

For more information about Windows Terminal, you may find some of these resources useful and interesting:


FAQ

I built and ran the new Terminal, but it looks just like the old console

Cause: You're launching the incorrect solution in Visual Studio.

Solution: Make sure you're building & deploying the CascadiaPackage project in Visual Studio.

⚠ Note: OpenConsole.exe is just a locally-built conhost.exe, the classic Windows Console that hosts Windows' command-line infrastructure. OpenConsole is used by Windows Terminal to connect to and communicate with command-line applications (via ConPty).


Documentation

All project documentation is located at aka.ms/terminal-docs. If you would like to contribute to the documentation, please submit a pull request on the Windows Terminal Documentation repo.


Contributing

We are excited to work alongside you, our amazing community, to build and enhance Windows Terminal!

BEFORE you start work on a feature/fix, please read & follow our Contributor's Guide to help avoid any wasted or duplicate effort.

Communicating with the Team

The easiest way to communicate with the team is via GitHub issues.

Please file new issues, feature requests and suggestions, but DO search for similar open/closed pre-existing issues before creating a new issue.

If you would like to ask a question that you feel doesn't warrant an issue (yet), please reach out to us via Twitter:

Developer Guidance

Prerequisites

Building the Code

This repository uses git submodules for some of its dependencies. To make sure submodules are restored or updated, be sure to run the following prior to building:

git submodule update --init --recursive

OpenConsole.sln may be built from within Visual Studio or from the command-line using a set of convenience scripts & tools in the /tools directory:

Building in PowerShell

Import-Module .\tools\OpenConsole.psm1
Set-MsBuildDevEnvironment
Invoke-OpenConsoleBuild

Building in Cmd

.\tools\razzle.cmd
bcz

Running & Debugging

To debug the Windows Terminal in VS, right click on CascadiaPackage (in the Solution Explorer) and go to properties. In the Debug menu, change "Application process" and "Background task process" to "Native Only".

You should then be able to build & debug the Terminal project by hitting F5.

👉 You will not be able to launch the Terminal directly by running the WindowsTerminal.exe. For more details on why, see #926, #4043

Coding Guidance

Please review these brief docs below about our coding practices.

👉 If you find something missing from these docs, feel free to contribute to any of our documentation files anywhere in the repository (or write some new ones!)

This is a work in progress as we learn what we'll need to provide people in order to be effective contributors to our project.


Code of Conduct

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.