Update build for Linux.

wasm/Makefile

@@ -25,9 +25,10 @@ CFLAGS+=-DWASM -nostdlib --target=wasm32 \
 WOFLAGS:=--asyncify --pass-arg=asyncify-imports@bynsyncify.* --pass-arg=asyncify-ignore-indirect
 
 opt.js : template.js main.wasm
-	bash -c 'export BLOB=$$(cat main.wasm | base64 | sed -e "$$ ! {/./s/$$/ \\\\/}" ); envsubst < template.js > opt.js'
+	bash -c 'export BLOB=$$(cat main.wasm | base64 | sed -e "$$ ! {/./s/$$/ \\\\/}" ); envsubst < template.js > mid.js'
 	#Comment the below line out if you don't want to uglify the javascript.
-	$(TERSER) $(TERSERFLAGS) opt.js -o opt.js
+	$(TERSER) $(TERSERFLAGS) mid.js -o opt.js
+	rm mid.js
 
 index.html : template.ht opt.js
 	bash -c 'export JAVASCRIPT_DATA=$$(cat opt.js); envsubst < template.ht > $@'

wasm/README.md

@@ -1,5 +1,17 @@
 # rawdrawwasm
 
+rawdrawwasm
+
+## Prerequisites
+
+```
+sudo apt-get install npm binaryen clang
+sudo npm install terser -g
+```
+
+
+## Old Notes
+
 My stab at rawdraw on wasm.  This is based on:
  https://github.com/zNoctum/wasm-tool
 and has inspiration from:

wasm/template.js

@@ -2,14 +2,14 @@
 
 //Global memory for application.
 let memory = new WebAssembly.Memory({initial:200});
-//slet HEAP8 = new Int8Array(memory.buffer);
+let HEAP8 = new Int8Array(memory.buffer);
 let HEAPU8 = new Uint8Array(memory.buffer);
 let HEAP16 = new Int16Array(memory.buffer);
-//let HEAPU16 = new Uint16Array(memory.buffer);
-//let HEAP32 = new Uint32Array(memory.buffer);
+let HEAPU16 = new Uint16Array(memory.buffer);
+let HEAP32 = new Uint32Array(memory.buffer);
 let HEAPU32 = new Uint32Array(memory.buffer);
 let HEAPF32 = new Float32Array(memory.buffer);
-//let HEAPF64 = new Float64Array(memory.buffer);
+let HEAPF64 = new Float64Array(memory.buffer);
 
 let toUtf8Decoder = new TextDecoder( "utf-8" );
 function toUTF8(ptr) {
@@ -26,6 +26,11 @@ let fullscreen = false;
 //Configure WebGL Stuff (allow to be part of global context)
 let canvas = document.getElementById('canvas');
 let wgl = canvas.getContext('webgl');
+if( !wgl )
+{
+	//Janky - on Firefox 83, with NVIDIA GPU, you need to ask twice.
+	wgl = canvas.getContext('webgl');
+}
 let wglShader = null; //Standard flat color shader
 let wglABV = null;    //Array buffer for vertices
 let wglABC = null;    //Array buffer for colors.