Add dumpDraws and dumpDrawsToSVG to TestSpace

dub.json

@@ -26,7 +26,9 @@
 		},
 		{
 			"dependencies": {
-				"silly": "~>1.1.1"
+				"silly": "~>1.1.1",
+				"elemi": "~>1.2.2",
+				"arsd-official:image_files": "~>11.3"
 			},
 			"importPaths": [
 				"tests",
@@ -43,7 +45,8 @@
 			"targetType": "library",
 			"versions": [
 				"Fluid_HeadlessOutput",
-				"Fluid_TestSpace"
+				"Fluid_TestSpace",
+				"Fluid_SVG"
 			]
 		},
 		{

source/fluid/backend/headless.d

@@ -1,12 +1,12 @@
-/// A headless backend. This backend does not actually render anything. This allows apps reliant on Fluid to run 
+/// A headless backend. This backend does not actually render anything. This allows apps reliant on Fluid to run
 /// outside of graphical environments, provided an alternative method of access exist.
 ///
-/// This backend is used internally in Fluid for performing tests. For this reason, this module may be configured to 
-/// capture the output in a way that can be analyzed or compared againt later. This functionality is disabled by 
+/// This backend is used internally in Fluid for performing tests. For this reason, this module may be configured to
+/// capture the output in a way that can be analyzed or compared againt later. This functionality is disabled by
 /// default due to significant overhead — use version `Fluid_HeadlessOutput` to turn it on.
 ///
-/// If `elemi` is added as a dependency and `Fluid_HeadlessOutput` is set, the backend will also expose its 
-/// experimental SVG export functionality through `saveSVG`. It is only intended for testing; note it will export text 
+/// If `elemi` is added as a dependency and `Fluid_HeadlessOutput` is set, the backend will also expose its
+/// experimental SVG export functionality through `saveSVG`. It is only intended for testing; note it will export text
 /// as embedded raster images rather than proper vector text.
 module fluid.backend.headless;
 
@@ -181,7 +181,7 @@ class HeadlessBackend : FluidBackend {
     }
 
     version (Fluid_HeadlessOutput) {
-    
+
         alias Drawing = SumType!(DrawnLine, DrawnTriangle, DrawnCircle, DrawnRectangle, DrawnTexture);
 
         /// All items drawn during the last frame
@@ -484,7 +484,7 @@ class HeadlessBackend : FluidBackend {
 
     Rectangle area() const {
 
-        if (_scissorsOn) 
+        if (_scissorsOn)
             return _area;
         else
             return Rectangle(0, 0, _windowSize.tupleof);
@@ -568,30 +568,7 @@ class HeadlessBackend : FluidBackend {
             import arsd.png;
             import arsd.image;
 
-            ubyte[] data;
-
-            // Load the image
-            final switch (image.format) {
-
-                case Image.Format.rgba:
-                    data = cast(ubyte[]) image.rgbaPixels;
-                    break;
-
-                // At the moment, this loads the palette available at the time of generation.
-                // Could it be possible to update the palette later?
-                case Image.Format.palettedAlpha:
-                    data = cast(ubyte[]) image.palettedAlphaPixels
-                        .map!(a => image.paletteColor(a))
-                        .array;
-                    break;
-
-                case Image.Format.alpha:
-                    data = cast(ubyte[]) image.alphaPixels
-                        .map!(a => Color(0xff, 0xff, 0xff, a))
-                        .array;
-                    break;
-
-            }
+            ubyte[] data = cast(ubyte[]) image.toRGBA.data;
 
             // Load the image
             auto arsdImage = new TrueColorImage(image.width, image.height, data);