SyntaxHub frontend for glsl shaders

extraParams.hxml

@@ -0,0 +1 @@
+--macro kiss_flixel.ShaderFrontend.use()

shader-test/haxe_libraries/kiss-flixel.hxml

@@ -7,4 +7,5 @@
 -lib openfl
 -cp ${SCOPE_DIR}/..//src/
 -D kiss-flixel=0.0.0
+${SCOPE_DIR}/..//extraParams.hxml
 --macro Sys.println("haxe_libraries/kiss-flixel.hxml:9: [Warning] Using dev version of library kiss-flixel")

shader-test/source/CShader.f.glsl

@@ -0,0 +1,7 @@
+#pragma header
+
+void main()
+{
+    vec4 color = flixel_texture2D(bitmap, openfl_TextureCoordv);
+    gl_FragColor = vec4((1.0 - color.r) * color.a, (1.0 - color.g) * color.a, (1.0 - color.b) * color.a,   color.a);
+}

shader-test/source/CShader.hx

@@ -1,19 +0,0 @@
-import flixel.system.FlxAssets.FlxShader;
-
-class CShader extends FlxShader {
-    @:glFragmentSource('
-        #pragma header
-
-        void main()
-        {
-            vec4 color = flixel_texture2D(bitmap, openfl_TextureCoordv);
-            gl_FragColor = vec4((1.0 - color.r) * color.a, (1.0 - color.g) * color.a, (1.0 - color.b) * color.a,   color.a);
-        }'
-    ) 
-
-
-
-  public function new() {
-    super();
-  }
-}

src/kiss_flixel/ShaderFrontend.hx

@@ -0,0 +1,64 @@
+package kiss_flixel;
+
+import tink.syntaxhub.*;
+import haxe.macro.Expr;
+import haxe.macro.Context;
+import haxe.macro.Expr.ImportMode;
+using StringTools;
+using tink.MacroApi;
+
+class ShaderFrontend implements FrontendPlugin {
+ 
+	public function new() {}
+	
+    var vertexExtensions = ["v.glsl", "vert"]; 
+    var fragmentExtensions = ["f.glsl", "frag"];
+
+	public function extensions() {
+		return vertexExtensions.concat(fragmentExtensions).iterator();
+	}
+	
+	public function parse(file:String, context:FrontendContext):Void {
+        var extension = file.substr(file.indexOf(".") + 1);
+        trace(extension);
+
+		final type = context.getType();
+        var parentClass = 'flixel.system.FlxAssets.FlxShader';
+        type.kind = TDClass(parentClass.asTypePath(), [], false, false, false);
+
+        var pos = Context.makePosition({ file: file, min: 0, max: 0 });
+		
+        var metaName = if (vertexExtensions.contains(extension)) 
+            ":glVertexSource"
+        else if (fragmentExtensions.contains(extension))
+            ":glFragmentSource"
+        else
+            throw "Unknown extension";
+
+        var meta = {
+            pos: pos,
+            name: metaName,
+            params: [
+                {
+                    pos: pos,
+                    expr: EConst(CString(sys.io.File.getContent(file)))
+                }
+            ]
+        };
+
+        type.fields.push({
+            pos: pos,
+            name: "new",
+            meta: [meta],
+            kind: FFun({
+                args: [],
+                expr: macro { super(); }
+            }),
+            access: [APublic]
+        });
+	}
+
+	static function use() {
+		tink.SyntaxHub.frontends.whenever(new ShaderFrontend());
+	}
+}