GNU/Linux - Wayland, Weston and Sato

Wayland 是一种 Linux 协议和显示服务器，旨在成为 X 窗口系统（通常称为 X11）更简单、更现代的替代方案。它促进了显示服务器与其客户端（应用程序）之间的通信，以渲染图形输出。

Wayland 的主要功能:

1. 简单： Wayland 的设计比 X11 更简单明了，可减少复杂性和潜在的安全漏洞。

2. 性能： 它减少了渲染的开销，允许客户端直接与合成器通信，从而带来更流畅的图形和更低的延迟，从而提供更高的性能。

3. 合成： Wayland 将合成集成到显示协议中，从而可以更高效地处理窗口和图形效果。

4. 安全性: 有了 Wayland，每个应用程序都是独立的，这有助于最大限度地降低一个应用程序干扰另一个应用程序的风险，从而提高安全性。

5. 现代图形: 它的设计利用了现代图形硬件和应用程序接口，使其适用于当前和未来的应用程序。

尽管 X11 仍在广泛使用和支持，但许多桌面环境（如 GNOME 和 KDE）都在逐步采用 Wayland。过渡到 Wayland 有很多好处，但在与某些应用程序和硬件的兼容性方面可能仍有一些挑战。

Wayland is a protocol and display server for Linux that aims to be a simpler and more modern alternative to the X Window System (commonly known as X11). It facilitates the communication between a display server and its clients (applications) to render graphical output.

Key Features of Wayland:

1. Simplicity: Wayland is designed to be more straightforward than X11, reducing complexity and potential security vulnerabilities.

2. Performance: It provides better performance by reducing the overhead of rendering and allowing clients to communicate directly with the compositor, which can lead to smoother graphics and lower latency.

3. Compositing: Wayland integrates compositing into the display protocol, allowing for more efficient handling of windows and graphical effects.

4. Security: With Wayland, each application is isolated, which helps improve security by minimizing the risk of one application interfering with another.

5. Modern Graphics: It is designed to take advantage of modern graphics hardware and APIs, making it suitable for current and future applications.

Many desktop environments, like GNOME and KDE, are gradually adopting Wayland, although X11 is still widely used and supported. Transitioning to Wayland offers benefits, but it may still have some compatibility challenges with certain applications and hardware.

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Weston 是 Wayland 合成器的参考实现。它演示了 Wayland 的工作原理，并提供了运行 Wayland 应用程序的基本环境。以下是有关 Weston 的一些要点：

Weston 的主要功能：

1. 合成器： 作为一个合成器，Weston 为 Wayland 客户端管理窗口和图形的显示，将它们合并为一个输出。

2. 参考实现： 它是开发人员的标准模型，展示了 Wayland 的功能以及如何构建符合要求的合成器。

3. 模块化设计： Weston 采用模块化设计，允许各种后端支持不同的图形系统，如 DRM（直接渲染管理器）或 X11。

4. 开发和测试： 开发人员通常使用 Weston 进行测试和开发，因为它提供了使用 Wayland 协议的直接环境。

5. 功能： Weston 支持窗口管理、基本输入处理和渲染等功能。它还可以定制和扩展，是开发人员的灵活工具。

总之，Weston 在 Wayland 生态系统中发挥着至关重要的作用，有助于推动和促进在 Linux 环境中采用 Wayland。

Weston is the reference implementation of a Wayland compositor. It serves as a demonstration of how Wayland works and provides a basic environment for running Wayland applications. Here are some key points about Weston:

Key Features of Weston:

1. Compositor: As a compositor, Weston manages the display of windows and graphics for Wayland clients, combining them into a single output.

2. Reference Implementation: It acts as a standard model for developers, showcasing the capabilities of Wayland and how to build a compliant compositor.

3. Modular Design: Weston is designed to be modular, allowing for various backends to support different graphics systems, such as DRM (Direct Rendering Manager) or X11.

4. Development and Testing: Developers often use Weston for testing and development purposes, as it provides a straightforward environment to work with Wayland protocols.

5. Features: Weston supports features like window management, basic input handling, and rendering. It can also be customized and extended, making it a flexible tool for developers.

Overall, Weston plays a crucial role in the Wayland ecosystem, helping to promote and facilitate the adoption of Wayland in Linux environments.

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Sato 是 Wayland 的参考合成器，专为嵌入式系统和触摸屏设备而设计。它提供简单的图形用户界面，是 Wayland 生态系统的一部分。以下是有关 Sato 的一些要点：

Sato 的主要功能:

1. 支持触摸屏： Sato 针对触摸交互进行了优化，因此适合平板电脑或自助终端等嵌入式应用。

2. 用户界面： 它提供简单明了、用户友好的界面，便于在嵌入式环境中使用。

3. 轻便： Sato 采用轻量级设计，对于资源有限的设备非常有效。

4. Wayland 集成： 作为 Wayland 合成器，它能促进应用程序与显示服务器之间的通信，并遵守 Wayland 协议。

5. 自定义: Sato 可针对特定应用或用例进行定制，因此适用于不同的嵌入式解决方案。

总之，Sato 充分体现了 Wayland 如何针对嵌入式系统的特定需求进行定制。

Sato is a reference compositor for Wayland designed specifically for embedded systems and touchscreen devices. It provides a simple graphical user interface and is part of the Wayland ecosystem. Here are some key points about Sato:

Key Features of Sato:

1. Touchscreen Support: Sato is optimized for touch interactions, making it suitable for embedded applications like tablets or kiosks.

2. User Interface: It offers a straightforward and user-friendly interface, designed for ease of use in embedded environments.

3. Lightweight: Sato is designed to be lightweight, making it efficient for devices with limited resources.

4. Wayland Integration: As a Wayland compositor, it facilitates communication between applications and the display server, adhering to the Wayland protocols.

5. Customization: Sato can be customized for specific applications or use cases, making it versatile for different embedded solutions.

Overall, Sato exemplifies how Wayland can be tailored for specific needs in embedded systems.