Make wasm plugins embeddable

Assets/plugins/embed/uv_unwrap.js

@@ -0,0 +1,88 @@
+
+let a = Krom_uv_unwrap;
+class R {
+	get buffer() { return Krom_uv_unwrap._buffer(); }
+}
+let r = new R();
+
+// uv_unwrap.js
+let plugin = new arm.Plugin();
+let h1 = new zui.Handle();
+plugin.drawUI = function(ui) {
+	if (ui.panel(h1, "UV Unwrap")) {
+		if (ui.button("Unwrap Mesh")) {
+
+			for (const po of arm.Project.paintObjects) {
+
+				let raw = po.data.raw;
+				let positions = raw.vertex_arrays[0].values;
+				let normals = raw.vertex_arrays[1].values;
+				let indices = raw.index_arrays[0].values;
+				let vertexCount = positions.length / 4;
+				let indexCount = indices.length;
+
+				a._setVertexCount(vertexCount);
+				a._setIndexCount(indexCount);
+				let pa = new Float32Array(r.buffer, a._setPositions(), vertexCount * 3);
+				let na = new Float32Array(r.buffer, a._setNormals(), vertexCount * 3);
+				let ia = new Uint32Array(r.buffer, a._setIndices(), indexCount);
+
+				let inv = 1 / 32767;
+
+				for (let i = 0; i < vertexCount; i++) {
+					pa[i * 3    ] = positions[i * 4    ] * inv;
+					pa[i * 3 + 1] = positions[i * 4 + 1] * inv;
+					pa[i * 3 + 2] = positions[i * 4 + 2] * inv;
+					na[i * 3    ] = normals  [i * 2    ] * inv;
+					na[i * 3 + 1] = normals  [i * 2 + 1] * inv;
+					na[i * 3 + 2] = positions[i * 4 + 3] * inv;
+				}
+				for (let i = 0; i < indexCount; i++) {
+					ia[i] = indices[i];
+				}
+
+				a._unwrap();
+
+				vertexCount = a._getVertexCount();
+				indexCount = a._getIndexCount();
+				pa = new Float32Array(r.buffer, a._getPositions(), vertexCount * 3);
+				na = new Float32Array(r.buffer, a._getNormals(), vertexCount * 3);
+				let ua = new Float32Array(r.buffer, a._getUVs(), vertexCount * 2);
+				ia = new Uint32Array(r.buffer, a._getIndices(), indexCount);
+
+				let pa16 = new Int16Array(vertexCount * 4);
+				let na16 = new Int16Array(vertexCount * 2);
+				let ua16 = new Int16Array(vertexCount * 2);
+				let ia32 = new Uint32Array(indexCount);
+
+				for (let i = 0; i < vertexCount; i++) {
+					pa16[i * 4    ] = pa[i * 3    ] / inv;
+					pa16[i * 4 + 1] = pa[i * 3 + 1] / inv;
+					pa16[i * 4 + 2] = pa[i * 3 + 2] / inv;
+					pa16[i * 4 + 3] = na[i * 3 + 2] / inv;
+					na16[i * 2    ] = na[i * 3    ] / inv;
+					na16[i * 2 + 1] = na[i * 3 + 1] / inv;
+					ua16[i * 2    ] = ua[i * 2    ] / inv;
+					ua16[i * 2 + 1] = ua[i * 2 + 1] / inv;
+				}
+				for (let i = 0; i < indexCount; i++) {
+					ia32[i] = ia[i];
+				}
+
+				po.data.raw.vertex_arrays[0].values = pa16;
+				po.data.raw.vertex_arrays[1].values = na16;
+				po.data.raw.vertex_arrays[2].values = ua16;
+				po.data.raw.index_arrays[0].values = ia32;
+
+				let geom = po.data.geom;
+				geom.indices[0] = ia32;
+				geom.ready = false;
+				geom.build();
+
+				a._destroy();
+			}
+
+			arm.MeshUtil.mergeMesh();
+		}
+	}
+}

README.md

@@ -66,6 +66,7 @@ cp -a build/krom/ armorcore/Deployment
 cd armorcore
 git apply patch/ios_document_picker.diff --directory=Kinc
 git apply patch/metal_depth.diff --directory=Kinc
+git clone https://github.com/armory3d/armorpaint_plugins Libraries/plugins
 node Kinc/make ios -g metal
 # Open generated Xcode project `build/ArmorPaint.xcodeproj`
 # Set iOS Deployment Target to 11.0

khafile.js

@@ -9,6 +9,7 @@ let raytrace = d3d12 || vulkan;
 let metal = process.argv.indexOf("metal") >= 0;
 let vr = process.argv.indexOf("--vr") >= 0;
 let snapshot = process.argv.indexOf("--snapshot") >= 0;
+let plugin_embed = ios;
 
 let project = new Project("ArmorPaint");
 project.addSources("Sources");
@@ -28,6 +29,12 @@ project.addAssets("Assets/keymap_presets/*", { destination: "data/keymap_presets
 project.addAssets("Assets/locale/*", { destination: "data/locale/{name}" });
 project.addAssets("Assets/licenses/**", { destination: "data/licenses/{name}" });
 project.addAssets("Assets/plugins/*", { destination: "data/plugins/{name}" });
+if (plugin_embed) {
+	project.addAssets("Assets/plugins/embed/*", { destination: "data/plugins/{name}" });
+}
+else {
+	project.addAssets("Assets/plugins/wasm/*", { destination: "data/plugins/{name}" });
+}
 project.addAssets("Assets/meshes/*", { destination: "data/meshes/{name}" });
 project.addAssets("Libraries/armorbase/Assets/licenses/**", { destination: "data/licenses/{name}" });
 project.addAssets("Libraries/armorbase/Assets/themes/*.json", { destination: "data/themes/{name}" });