Enable watermarking images, fonts rendering and all JDK supported image formats in AWT Extension

[Karm]

Description

Use case:

• watermarking images
• drawing, server side generated graphics

Status:

• polishing an update into a PR
• wrapping up a new quickstart to open a PR in https://github.com/quarkusio/quarkus-quickstarts too

WIP:
Done means there is a suite of rigorous tests exercising the relevant code paths, e.g. for encoders only it's 964 test cases of image type:image format:colour space:compression.

• Showcase in a Quick start: awt-graphics-rest-quickstart (needs not yet published AWT extension update)
• TIFF Decoder; all compressors; metadata
• TIFF Encoder; all compressors; metadata; multiple images in a container
• PNG Decoder; all compressors; layers; metadata
• PNG Encoder; all compressors; metadata
• GIF Decoder; all compressors; animations; metadata
• GIF Encoder; all compressors; metadata
• JPEG Decoder; metadata
• JPEG Encoder; metadata
• BMP Decoder; all compressors; metadata
• BMP Encoder; all compressors; (metadata immutable, so just the default)
• WBMP Decoder; metadata
• WBMP Encoder; (metadata immutable, so just the default)
• Fonts, both embedded and loading one's own: It's done in the aforementioned Quick start, I just need to do some streamlined copy-pasting :) to the extension's integration tests.
• Geometry, full Java2D suite, building on the foundation I have in /mandrel-integration-tests
• Rinse and repeat on JDK 17 as all the above work is being done with JDK 11.0.13 ea.
• Rinse and repeat on Windows, which will bring some additional changes. All the aforementioned work in being done on Linux.
• README me for the test suite
• Docs for the extension

Implementation affects:

• recent awt extension
• core, switching Quarkus to be headless by default , i.e.

@@ -52,6 +52,13 @@ public class NativeConfig {
     @ConfigItem(defaultValue = "true")
     public boolean enableJni;
 
+    /**
+     * The default value for java.awt.headless JVM option.
+     * Switching this option affects linking of awt libraries.
+     */
+    @ConfigItem(defaultValue = "true")
+    public boolean headless;
+
...
@@ -597,6 +597,10 @@ public class NativeImageBuildStep {
                 nativeImageArgs.add("-H:+JNI");
                 nativeImageArgs.add("-H:+AllowFoldMethods");
 
+                if (nativeConfig.headless) {
+                    nativeImageArgs.add("-J-Djava.awt.headless=true");
+                }
+

Implementation ideas

@gastaldi Assign the issue to me, please.

[Karm]

@galderz @jerboaa The issue to bind the upcoming PRs to....

[galderz]

I'm happy with the proposal. I think having the native image configuration options would be useful too, to avoid relying on implicit local environment, or docker image specific, setups.

[Karm]

Updated description with a checklist of progress.

[Karm]

Linux and JDK 11.0.13+7 tested AWT extension:

https://github.com/Karm/quarkus/tree/awt-extension-proper

Linux and JDK 11.0.13+7 tested AWT quickstart:

https://github.com/Karm/quarkus-quickstarts/tree/quarkus-awt/awt-graphics-rest-quickstart