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Mukilan Thiyagarajan 8a20e42de4
Add support for static SVG images using resvg crate (#36721) 
This change adds support for rendering static SVG images using the
`resvg` crate, allowing svg sources in the `img` tag and in CSS
`background` and `content` properties. There are some limitations in
using resvg:

1. There is no support for animations or interactivity as these would
require implementing the full DOM layer of SVG specification.
2. Only system fonts can be used for text rendering. There is some
mechanism to provide a custom font resolver to usvg, but that is not
explored in this change.
3. resvg's handling of certain edge cases involving lack of explicit
`width` and `height` on the root svg element deviates from what the
specification expects from browsers. For example, resvg uses the values
in `viewBox` to derive the missing width or height dimension, but
without scaling that dimension to preserve the aspect ratio. It also
doesn't allow overriding this behavior.

Demo screenshot:
![servo - resvg
img](https://github.com/user-attachments/assets/8ecb2de2-ab7c-48e2-9f08-2d09d2cb8791)

<details>
<summary>Source</summary>

```
<style>
 #svg1 {
   border: 1px solid red;
 }

 #svg2 {
   border: 1px solid red;
   width: 300px;
 }
 #svg3 {
   border: 1px solid red;
   width: 300px;
   height: 200px;
   object-fit: contain;
 }
 #svg4 {
   border: 1px solid red;
   width: 300px;
   height: 200px;
   object-fit: cover;
 }
 #svg5 {
   border: 1px solid red;
   width: 300px;
   height: 200px;
   object-fit: fill;
 }
 #svg6 {
   border: 1px solid red;
   width: 300px;
   height: 200px;
   object-fit: none;
 }
</style>
</head>
<body>
        <div>
          <img id="svg1" src="https://raw.githubusercontent.com/servo/servo/refs/heads/main/resources/servo.svg" alt="Servo logo">
        </div>
        <div>
          <img id="svg2" src="https://raw.githubusercontent.com/servo/servo/refs/heads/main/resources/servo.svg" alt="Servo logo">
          <img id="svg3" src="https://raw.githubusercontent.com/servo/servo/refs/heads/main/resources/servo.svg" alt="Servo logo">
          <img id="svg4" src="https://raw.githubusercontent.com/servo/servo/refs/heads/main/resources/servo.svg" alt="Servo logo">
        </div>
        <div>
          <img id="svg5" src="https://raw.githubusercontent.com/servo/servo/refs/heads/main/resources/servo.svg" alt="Servo logo">
          <img id="svg6" src="https://raw.githubusercontent.com/servo/servo/refs/heads/main/resources/servo.svg" alt="Servo logo">
        </div>
</body>
```

</details>

---------

Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Martin Robinson <mrobinson@igalia.com>
2025-05-27 11:02:40 +00:00
..
background_hang_monitor script: add skeleton implementation of FontFace API (#35262) 2025-02-19 05:50:01 +00:00
base imagebitmap: Make ImageBitmap serializable and transferable (#37101) 2025-05-23 20:40:25 +00:00
bluetooth Include WebViewId into EmbedderMsg variants where possible (#35211) 2025-01-30 11:15:35 +00:00
canvas Introduce snapshot concept of canvas (#36119) 2025-04-23 07:32:47 +00:00
compositing Add support for static SVG images using resvg crate (#36721) 2025-05-27 11:02:40 +00:00
constellation imagebitmap: Use snapshot::Snapshot as bitmap data (#37131) 2025-05-27 06:41:25 +00:00
devtools devtools: Allow highlighting elements from the inspector (#35822) 2025-05-05 10:10:25 +00:00
embedder Add support for static SVG images using resvg crate (#36721) 2025-05-27 11:02:40 +00:00
fonts Update rustfmt to the 2024 style edition (#35764) 2025-03-03 11:26:53 +00:00
net Add support for static SVG images using resvg crate (#36721) 2025-05-27 11:02:40 +00:00
profile Removing unused dependencies in crates. (#37096) 2025-05-23 12:58:00 +00:00
script constellation: Pass system theme to new Pipelines (#37132) 2025-05-26 12:05:38 +00:00
script_layout Add support for static SVG images using resvg crate (#36721) 2025-05-27 11:02:40 +00:00
snapshot imagebitmap: Use snapshot::Snapshot as bitmap data (#37131) 2025-05-27 06:41:25 +00:00
webgpu Introduce snapshot concept of canvas (#36119) 2025-04-23 07:32:47 +00:00
webxr libservo: Move EventLooperWaker from webxr_traits to embedder_traits (#36420) 2025-04-09 14:19:33 +00:00