prepare to proxy gl commands

3 files changed, 29 insertions, 0 deletions

diff --git a/src/proxyClient.js b/src/proxyClient.js
index 62ae2492..53412671 100644
--- a/src/proxyClient.js
+++ b/src/proxyClient.js
@@ -80,6 +80,10 @@ worker.onmessage = function worker_onmessage(event) {
       }
       break;
     }
+    case 'gl': {
+      Module.glClient.onmessage(data);
+      break;
+    }
     default: throw 'what?';
   }
 };
diff --git a/src/webGLClient.js b/src/webGLClient.js
index 5a69c4a4..02756ddb 100644
--- a/src/webGLClient.js
+++ b/src/webGLClient.js
@@ -1,6 +1,19 @@
 // WebGLWorker client code
 
 function WebGLClient() {
+  function renderCommands(buffer) {
+  }
+
+  this.onmessage = function(msg) {
+    dump('client GL got ' + JSON.stringify(msg) + '\n');
+    switch(msg.op) {
+      case 'render': {
+        renderCommands(msg.commandBuffer);
+        break;
+      }
+      default: throw 'weird gl onmessage ' + JSON.stringify(msg);
+    }
+  };
 }
 
 WebGLClient.prefetch = function() {
diff --git a/src/webGLWorker.js b/src/webGLWorker.js
index 4a2f7bbb..eb230e51 100644
--- a/src/webGLWorker.js
+++ b/src/webGLWorker.js
@@ -8,6 +8,8 @@ function WebGLWorker() {
   this.prefetchedParameters = {};
   this.prefetchedExtensions = {};
 
+  var commandBuffer = [];
+
   //===========
   // Constants
   //===========
@@ -469,11 +471,21 @@ function WebGLWorker() {
     dump('worker getExtension ' + JSON.stringify(this.prefetchedExtensions) + '\n');
     var i = this.prefetchedExtensions.indexOf(name);
     if (i < 0) return null;
+    // XXX send a msg, to enable it in the client
     return true; // TODO: return an object here
   };
 
   this.getSupportedExtensions = function() {
     return this.prefetchedExtensions;
   };
+
+  // Setup
+  var postMainLoop = Module['postMainLoop'];
+  Module['postMainLoop'] = function() {
+    if (postMainLoop) postMainLoop();
+    // frame complete, send the command buffer
+    postMessage({ target: 'gl', method: 'render', commandBuffer: commandBuffer });
+    commandBuffer = [];
+  };
 }