Merge branch 'incoming'

17 files changed, 1343 insertions, 853 deletions

diff --git a/src/compiler.js b/src/compiler.js
index aa3c7b92..7d768c3d 100644
--- a/src/compiler.js
+++ b/src/compiler.js
@@ -206,12 +206,12 @@ if (phase == 'pre') {
 if (VERBOSE) printErr('VERBOSE is on, this generates a lot of output and can slow down compilation');
 
 // Load struct and define information.
-try {
+//try {
   var temp = JSON.parse(read(STRUCT_INFO));
-} catch(e) {
-  printErr('cannot load struct info at ' + STRUCT_INFO + ' : ' + e + ', trying in current dir');
-  temp = JSON.parse(read('struct_info.compiled.json'));
-}
+//} catch(e) {
+//  printErr('cannot load struct info at ' + STRUCT_INFO + ' : ' + e + ', trying in current dir');
+//  temp = JSON.parse(read('struct_info.compiled.json'));
+//}
 C_STRUCTS = temp.structs;
 C_DEFINES = temp.defines;
 
@@ -224,12 +224,12 @@ load('analyzer.js');
 load('jsifier.js');
 if (phase == 'funcs' && RELOOP) { // XXX handle !singlePhase
   RelooperModule = { TOTAL_MEMORY: ceilPowerOfTwo(2*RELOOPER_BUFFER_SIZE) };
-  try {
+  //try {
     load(RELOOPER);
-  } catch(e) {
-    printErr('cannot load relooper at ' + RELOOPER + ' : ' + e + ', trying in current dir');
-    load('relooper.js');
-  }
+  //} catch(e) {
+  //  printErr('cannot load relooper at ' + RELOOPER + ' : ' + e + ', trying in current dir');
+  //  load('relooper.js');
+  //}
   assert(typeof Relooper != 'undefined');
 }
 globalEval(processMacros(preprocess(read('runtime.js'))));
@@ -267,7 +267,7 @@ function compile(raw) {
   function runPhase(currPhase) {
     //printErr('// JS compiler in action, phase ' + currPhase + typeof lines + (lines === null));
     phase = currPhase;
-    if (phase != 'pre') {
+    if (phase != 'pre' && phase != 'glue') {
       if (singlePhase) PassManager.load(read(forwardedDataFile));
 
       if (phase == 'funcs') {
@@ -313,14 +313,16 @@ B = new Benchmarker();
 
 try {
   if (ll_file) {
-    if (ll_file.indexOf(String.fromCharCode(10)) == -1) {
+    if (phase === 'glue') {
+      compile(';');
+    } else if (ll_file.indexOf(String.fromCharCode(10)) == -1) {
       compile(read(ll_file));
     } else {
       compile(ll_file); // we are given raw .ll
     }
   }
 } catch(err) {
-  printErr('aborting from js compiler due to exception: ' + err);
+  printErr('aborting from js compiler due to exception: ' + err + ' | ' + err.stack);
 }
 
 //var M = keys(tokenCacheMisses).map(function(m) { return [m, misses[m]] }).sort(function(a, b) { return a[1] - b[1] });
diff --git a/src/intertyper.js b/src/intertyper.js
index 940c677f..b34d0c08 100644
--- a/src/intertyper.js
+++ b/src/intertyper.js
@@ -524,6 +524,27 @@ function intertyper(lines, sidePass, baseLineNums) {
             }
           });
         }
+      } else if (ident == '_llvm_used') {
+        var chunk = item.tokens[1].tokens;
+        var funcs = [];
+        var part = [];
+
+        for (var i = 0; i < chunk.length; i++) {
+          if (chunk[i].text == ',') {
+            var call = parseLLVMFunctionCall(part);
+            EXPORTED_FUNCTIONS[call.ident] = 0;
+            part = [];
+          } else {
+            part.push(chunk[i]);
+          }
+        }
+        if (part.length > 0) {
+          var call = parseLLVMFunctionCall(part);
+          EXPORTED_FUNCTIONS[call.ident] = 0;
+        }
+
+        ret.type = 'i32';
+        ret.value = { intertype: 'value', ident: '0', value: '0', type: ret.type };
       } else if (!external) {
         if (item.tokens[1] && item.tokens[1].text != ';') {
           if (item.tokens[1].text == 'c') {
@@ -538,6 +559,7 @@ function intertyper(lines, sidePass, baseLineNums) {
           ret.value = { intertype: 'value', ident: '0', value: '0', type: ret.type };
         }
       }
+
       return ret;
     }
   }
@@ -616,7 +638,8 @@ function intertyper(lines, sidePass, baseLineNums) {
   // 'bitcast'
   function bitcastHandler(item) {
     item.intertype = 'bitcast';
-    item.type = item.tokens[4].text; // The final type
+    var last = getTokenIndexByText(item.tokens, ';');
+    item.type = item.tokens[Math.min(last, item.tokens.length-1)].text; // The final type
     Types.needAnalysis[item.type] = 0;
     var to = getTokenIndexByText(item.tokens, 'to');
     item.params = [parseLLVMSegment(item.tokens.slice(1, to))];
diff --git a/src/jsifier.js b/src/jsifier.js
index acfb6365..907855e7 100644
--- a/src/jsifier.js
+++ b/src/jsifier.js
@@ -28,7 +28,7 @@ function JSify(data, functionsOnly, givenFunctions) {
   if (mainPass) {
     var shellFile = SHELL_FILE ? SHELL_FILE : (BUILD_AS_SHARED_LIB || SIDE_MODULE ? 'shell_sharedlib.js' : 'shell.js');
 
-    if (phase == 'pre') {
+    if (phase == 'pre' || phase == 'glue') {
       // We will start to print out the data, but must do so carefully - we are
       // dealing with potentially *huge* strings. Convenient replacements and
       // manipulations may create in-memory copies, and we may OOM.
@@ -72,7 +72,7 @@ function JSify(data, functionsOnly, givenFunctions) {
     LibraryManager.load();
     //B.stop('jsifier-libload');
 
-    if (phase == 'pre') {
+    if (phase == 'pre' || phase == 'glue') {
       var libFuncsToInclude;
       if (INCLUDE_FULL_LIBRARY) {
         assert(!(BUILD_AS_SHARED_LIB || SIDE_MODULE), 'Cannot have both INCLUDE_FULL_LIBRARY and BUILD_AS_SHARED_LIB/SIDE_MODULE set.')
@@ -474,7 +474,7 @@ function JSify(data, functionsOnly, givenFunctions) {
         }
       }
       if (SIDE_MODULE) return ';'; // we import into the side module js library stuff from the outside parent 
-      if ((!ASM_JS || phase == 'pre') &&
+      if ((!ASM_JS || phase == 'pre' || phase == 'glue') &&
           (EXPORT_ALL || (ident in EXPORTED_FUNCTIONS))) {
         contentText += '\nModule["' + ident + '"] = ' + ident + ';';
       }
@@ -1373,8 +1373,9 @@ function JSify(data, functionsOnly, givenFunctions) {
   function insertelementHandler(item) {
     var base = getVectorBaseType(item.type);
     var ident = ensureVector(item.ident, base);
+    var laneOp = ((base == 'float') ? 'SIMD.float32x4.with' : 'SIMD.int32x4.with');
     //return ident + '.with' + SIMDLane[finalizeLLVMParameter(item.index)] + '(' + finalizeLLVMParameter(item.value) + ')';
-    return 'SIMD.with' + SIMDLane[finalizeLLVMParameter(item.index)] + '(' + ident + ',' + finalizeLLVMParameter(item.value) + ')';
+    return laneOp + SIMDLane[finalizeLLVMParameter(item.index)] + '(' + ident + ',' + finalizeLLVMParameter(item.value) + ')';
   }
   function extractelementHandler(item) {
     var base = getVectorBaseType(item.type);
@@ -1603,6 +1604,15 @@ function JSify(data, functionsOnly, givenFunctions) {
       }
     }
 
+    // we alias llvm memset and such to normal memset. The target has a return value, while the original
+    // does not, so we need to fix that for the actual call target
+    if (ASM_JS) {
+      var sig = LibraryManager.library[simpleIdent + '__sig'];
+      if (sig && sig[0] !== 'v') {
+        returnType = Functions.getSignatureType(sig[0]);
+      }
+    }
+
     if (byPointer) {
       var sig = Functions.getSignature(returnType, argsTypes, hasVarArgs);
       if (ASM_JS) {
@@ -1704,7 +1714,7 @@ function JSify(data, functionsOnly, givenFunctions) {
     //
 
     if (!mainPass) {
-      if (phase == 'pre' && !Variables.generatedGlobalBase && !BUILD_AS_SHARED_LIB) {
+      if ((phase == 'pre' || phase == 'glue') && !Variables.generatedGlobalBase && !BUILD_AS_SHARED_LIB) {
         Variables.generatedGlobalBase = true;
         // Globals are done, here is the rest of static memory
         assert((TARGET_LE32 && Runtime.GLOBAL_BASE == 8) || (TARGET_X86 && Runtime.GLOBAL_BASE == 4)); // this is assumed in e.g. relocations for linkable modules
@@ -1719,7 +1729,7 @@ function JSify(data, functionsOnly, givenFunctions) {
       var generated = itemsDict.function.concat(itemsDict.type).concat(itemsDict.GlobalVariableStub).concat(itemsDict.GlobalVariable);
       print(generated.map(function(item) { return item.JS; }).join('\n'));
 
-      if (phase == 'pre') {
+      if (phase == 'pre' || phase == 'glue') {
         if (memoryInitialization.length > 0) {
           // apply postsets directly into the big memory initialization
           itemsDict.GlobalVariablePostSet = itemsDict.GlobalVariablePostSet.filter(function(item) {
@@ -1742,15 +1752,17 @@ function JSify(data, functionsOnly, givenFunctions) {
           });
           // write out the singleton big memory initialization value
           print('/* memory initializer */ ' + makePointer(memoryInitialization, null, 'ALLOC_NONE', 'i8', 'Runtime.GLOBAL_BASE' + (SIDE_MODULE ? '+H_BASE' : ''), true));
-        } else {
+        } else if (phase !== 'glue') {
           print('/* no memory initializer */'); // test purposes
         }
 
-        // Define postsets. These will be run in ATINIT, right before global initializers (which might need the postsets). We cannot
-        // run them now because the memory initializer might not have been applied yet.
-        print('function runPostSets() {\n');
-        print(itemsDict.GlobalVariablePostSet.map(function(item) { return item.JS }).join('\n'));
-        print('}\n');
+        if (phase !== 'glue') {
+          // Define postsets. These will be run in ATINIT, right before global initializers (which might need the postsets). We cannot
+          // run them now because the memory initializer might not have been applied yet.
+          print('function runPostSets() {\n');
+          print(itemsDict.GlobalVariablePostSet.map(function(item) { return item.JS }).join('\n'));
+          print('}\n');
+        }
 
         if (USE_TYPED_ARRAYS == 2) {
           if (!BUILD_AS_SHARED_LIB && !SIDE_MODULE) {
@@ -1780,7 +1792,7 @@ function JSify(data, functionsOnly, givenFunctions) {
     }
 
     // Print out global variables and postsets TODO: batching
-    if (phase == 'pre') {
+    if (phase == 'pre' || phase == 'glue') {
       var legalizedI64sDefault = legalizedI64s;
       legalizedI64s = false;
 
diff --git a/src/library.js b/src/library.js
index a5380c3a..26d766e9 100644
--- a/src/library.js
+++ b/src/library.js
@@ -23,6 +23,7 @@ LibraryManager.library = {
   stdout: 'allocate(1, "i32*", ALLOC_STATIC)',
   stderr: 'allocate(1, "i32*", ALLOC_STATIC)',
   _impure_ptr: 'allocate(1, "i32*", ALLOC_STATIC)',
+  __dso_handle: 'allocate(1, "i32*", ALLOC_STATIC)',
 
   // ==========================================================================
   // dirent.h
@@ -471,6 +472,11 @@ LibraryManager.library = {
   mkstemp: function(template) {
     return _creat(_mktemp(template), 0600);
   },
+  mkdtemp__deps: ['mktemp', 'mkdir'],
+  mkdtemp: function(template) {
+    template = _mktemp(template);
+    return (_mkdir(template, 0700) === 0) ? template : 0;
+  },
   fcntl__deps: ['$FS', '__setErrNo', '$ERRNO_CODES'],
   fcntl: function(fildes, cmd, varargs, dup2) {
     // int fcntl(int fildes, int cmd, ...);
@@ -535,7 +541,7 @@ LibraryManager.library = {
     // Advise as much as you wish. We don't care.
     return 0;
   },
-  posix_madvise: 'posix_fadvise',
+  posix_madvise: function(){ return 0 }, // ditto as fadvise
   posix_fallocate__deps: ['$FS', '__setErrNo', '$ERRNO_CODES'],
   posix_fallocate: function(fd, offset, len) {
     // int posix_fallocate(int fd, off_t offset, off_t len);
@@ -1855,7 +1861,11 @@ LibraryManager.library = {
       //       int x = 4; printf("%c\n", (char)x);
       var ret;
       if (type === 'double') {
+#if TARGET_LE32 == 2
+        ret = {{{ makeGetValue('varargs', 'argIndex', 'double', undefined, undefined, true, 4) }}};
+#else
         ret = {{{ makeGetValue('varargs', 'argIndex', 'double', undefined, undefined, true) }}};
+#endif
 #if USE_TYPED_ARRAYS == 2
       } else if (type == 'i64') {
 
@@ -1876,7 +1886,11 @@ LibraryManager.library = {
         type = 'i32'; // varargs are always i32, i64, or double
         ret = {{{ makeGetValue('varargs', 'argIndex', 'i32', undefined, undefined, true) }}};
       }
+#if TARGET_LE32 == 2
+      argIndex += Runtime.getNativeFieldSize(type);
+#else
       argIndex += Math.max(Runtime.getNativeFieldSize(type), Runtime.getAlignSize(type, null, true));
+#endif
       return ret;
     }
 
@@ -2505,6 +2519,10 @@ LibraryManager.library = {
     }
     var bytesRead = 0;
     var streamObj = FS.getStream(stream);
+    if (!streamObj) {
+      ___setErrNo(ERRNO_CODES.EBADF);
+      return 0;
+    }
     while (streamObj.ungotten.length && bytesToRead > 0) {
       {{{ makeSetValue('ptr++', '0', 'streamObj.ungotten.pop()', 'i8') }}}
       bytesToRead--;
@@ -3522,13 +3540,15 @@ LibraryManager.library = {
   llvm_memcpy_p0i8_p0i8_i32: 'memcpy',
   llvm_memcpy_p0i8_p0i8_i64: 'memcpy',
 
-  memmove__sig: 'viii',
+  memmove__sig: 'iiii',
   memmove__asm: true,
   memmove__deps: ['memcpy'],
   memmove: function(dest, src, num) {
     dest = dest|0; src = src|0; num = num|0;
+    var ret = 0;
     if (((src|0) < (dest|0)) & ((dest|0) < ((src + num)|0))) {
       // Unlikely case: Copy backwards in a safe manner
+      ret = dest;
       src = (src + num)|0;
       dest = (dest + num)|0;
       while ((num|0) > 0) {
@@ -3537,9 +3557,11 @@ LibraryManager.library = {
         num = (num - 1)|0;
         {{{ makeSetValueAsm('dest', 0, makeGetValueAsm('src', 0, 'i8'), 'i8') }}};
       }
+      dest = ret;
     } else {
       _memcpy(dest, src, num) | 0;
     }
+    return dest | 0;
   },
   llvm_memmove_i32: 'memmove',
   llvm_memmove_i64: 'memmove',
@@ -3556,7 +3578,7 @@ LibraryManager.library = {
   memset__inline: function(ptr, value, num, align) {
     return makeSetValues(ptr, 0, value, 'null', num, align);
   },
-  memset__sig: 'viii',
+  memset__sig: 'iiii',
   memset__asm: true,
   memset: function(ptr, value, num) {
 #if USE_TYPED_ARRAYS == 2
@@ -3585,8 +3607,10 @@ LibraryManager.library = {
       {{{ makeSetValueAsm('ptr', 0, 'value', 'i8') }}};
       ptr = (ptr+1)|0;
     }
+    return (ptr-num)|0;
 #else
     {{{ makeSetValues('ptr', '0', 'value', 'null', 'num') }}};
+    return ptr;
 #endif
   },
   llvm_memset_i32: 'memset',
@@ -4657,6 +4681,10 @@ LibraryManager.library = {
 
   llvm_dbg_declare__inline: function() { throw 'llvm_debug_declare' }, // avoid warning
 
+  // llvm-nacl
+
+  llvm_nacl_atomic_store_i32__inline: true,
+
   // ==========================================================================
   // llvm-mono integration
   // ==========================================================================
@@ -6955,7 +6983,7 @@ LibraryManager.library = {
 
   pthread_setspecific__deps: ['$PTHREAD_SPECIFIC', '$ERRNO_CODES'],
   pthread_setspecific: function(key, value) {
-    if (value == 0) {
+    if (!(key in PTHREAD_SPECIFIC)) {
       return ERRNO_CODES.EINVAL;
     }
     PTHREAD_SPECIFIC[key] = value;
@@ -8724,8 +8752,72 @@ LibraryManager.library = {
   // emscripten vector ops
   //============================
 
-  emscripten_float32x4_signmask__inline: function(x) {
-    return x + '.signMask()';
+  emscripten_float32x4_signmask__inline: function(a) {
+    return 'SIMD.float32x4.bitsToInt32x4(' + a + ').signMask';
+  },
+  
+  emscripten_float32x4_min__inline: function(a, b) {
+    return 'SIMD.float32x4.min(' + a + ', ' + b + ')';
+  },
+  
+  emscripten_float32x4_max__inline: function(a, b) {
+    return 'SIMD.float32x4.max(' + a + ', ' + b + ')';
+  },
+  
+  emscripten_float32x4_sqrt__inline: function(a) {
+    return 'SIMD.float32x4.sqrt(' + a + ')';
+  },
+  
+  emscripten_float32x4_lessThan__inline: function(a, b) {
+    return 'SIMD.int32x4.bitsToFloat32x4(SIMD.float32x4.lessThan(' + a + ', ' + b + '))';
+  },
+  
+  emscripten_float32x4_lessThanOrEqual__inline: function(a, b) {
+    return 'SIMD.int32x4.bitsToFloat32x4(SIMD.float32x4.lessThanOrEqual(' + a + ', ' + b + '))';
+  },
+  
+  emscripten_float32x4_equal__inline: function(a, b) {
+    return 'SIMD.int32x4.bitsToFloat32x4(SIMD.float32x4.equal(' + a + ', ' + b + '))';
+  },
+  
+  emscripten_float32x4_greaterThanOrEqual__inline: function(a, b) {
+    return 'SIMD.int32x4.bitsToFloat32x4(SIMD.float32x4.greaterThanOrEqual(' + a + ', ' + b + '))';
+  },
+  
+  emscripten_float32x4_greaterThan__inline: function(a, b) {
+    return 'SIMD.int32x4.bitsToFloat32x4(SIMD.float32x4.greaterThan(' + a + ', ' + b + '))';
+  },
+  
+  emscripten_float32x4_and__inline: function(a, b) {
+    return 'SIMD.int32x4.bitsToFloat32x4(SIMD.int32x4.and(SIMD.float32x4.bitsToInt32x4(' + a + '), SIMD.float32x4.bitsToInt32x4(' + b + ')))';
+  },
+  
+  emscripten_float32x4_andNot__inline: function(a, b) {
+    return 'SIMD.int32x4.bitsToFloat32x4(SIMD.int32x4.and(SIMD.int32x4.not(SIMD.float32x4.bitsToInt32x4(' + a + ')), SIMD.float32x4.bitsToInt32x4(' + b + ')))';
+  },
+  
+  emscripten_float32x4_or__inline: function(a, b) {
+    return 'SIMD.int32x4.bitsToFloat32x4(SIMD.int32x4.or(SIMD.float32x4.bitsToInt32x4(' + a + '), SIMD.float32x4.bitsToInt32x4(' + b + ')))';
+  },
+  
+  emscripten_float32x4_xor__inline: function(a, b) {
+    return 'SIMD.int32x4.bitsToFloat32x4(SIMD.int32x4.xor(SIMD.float32x4.bitsToInt32x4(' + a + '), SIMD.float32x4.bitsToInt32x4(' + b + ')))';
+  },
+  
+  emscripten_int32x4_bitsToFloat32x4__inline: function(a) {
+      return 'SIMD.int32x4.bitsToFloat32x4(' + a + ')';
+  },
+  
+  emscripten_int32x4_toFloat32x4__inline: function(a) {
+      return 'SIMD.int32x4.toFloat32x4(' + a + ')';
+  },
+  
+  emscripten_float32x4_bitsToInt32x4__inline: function(a) {
+      return 'SIMD.float32x4.bitsToInt32x4(' + a + ')';
+  },
+  
+  emscripten_float32x4_toInt32x4__inline: function(a) {
+      return 'SIMD.float32x4.toInt32x4(' + a + ')';
   },
 
   //============================
diff --git a/src/library_browser.js b/src/library_browser.js
index 8444fb73..b368c6ac 100644
--- a/src/library_browser.js
+++ b/src/library_browser.js
@@ -250,15 +250,24 @@ mergeInto(LibraryManager.library, {
           contextAttributes.preserveDrawingBuffer = true;
 #endif
 
-          ['experimental-webgl', 'webgl'].some(function(webglId) {
-            return ctx = canvas.getContext(webglId, contextAttributes);
-          });
+          var errorInfo = '?';
+          function onContextCreationError(event) {
+            errorInfo = event.statusMessage || errorInfo;
+          }
+          canvas.addEventListener('webglcontextcreationerror', onContextCreationError, false);
+          try {
+            ['experimental-webgl', 'webgl'].some(function(webglId) {
+              return ctx = canvas.getContext(webglId, contextAttributes);
+            });
+          } finally {
+            canvas.removeEventListener('webglcontextcreationerror', onContextCreationError, false);
+          }
         } else {
           ctx = canvas.getContext('2d');
         }
         if (!ctx) throw ':(';
       } catch (e) {
-        Module.print('Could not create canvas - ' + e);
+        Module.print('Could not create canvas: ' + [errorInfo, e]);
         return null;
       }
       if (useWebGL) {
@@ -854,7 +863,7 @@ mergeInto(LibraryManager.library, {
     var styleSheet = document.styleSheets[0];
     var rules = styleSheet.cssRules;
     for (var i = 0; i < rules.length; i++) {
-      if (rules[i].cssText.substr(0, 5) == 'canvas') {
+      if (rules[i].cssText.substr(0, 6) == 'canvas') {
         styleSheet.deleteRule(i);
         i--;
       }
diff --git a/src/library_gl.js b/src/library_gl.js
index afd36197..cc39b048 100644
--- a/src/library_gl.js
+++ b/src/library_gl.js
@@ -209,6 +209,105 @@ var LibraryGL = {
                ((height - 1) * alignedRowSize + plainRowSize);
     },
 
+    get: function(name_, p, type) {
+      var ret = undefined;
+      switch(name_) { // Handle a few trivial GLES values
+        case 0x8DFA: // GL_SHADER_COMPILER
+          ret = 1;
+          break;
+        case 0x8DF8: // GL_SHADER_BINARY_FORMATS
+          if (type === 'Integer') {
+            // fall through, see gles2_conformance.cpp
+          } else {
+            GL.recordError(0x0500); // GL_INVALID_ENUM
+#if GL_ASSERTIONS
+            Module.printErr('GL_INVALID_ENUM in glGet' + type + 'v(GL_SHADER_BINARY_FORMATS): Invalid parameter type!');
+#endif
+            return;
+          }
+        case 0x8DF9: // GL_NUM_SHADER_BINARY_FORMATS
+          ret = 0;
+          break;
+        case 0x86A2: // GL_NUM_COMPRESSED_TEXTURE_FORMATS
+          // WebGL doesn't have GL_NUM_COMPRESSED_TEXTURE_FORMATS (it's obsolete since GL_COMPRESSED_TEXTURE_FORMATS returns a JS array that can be queried for length),
+          // so implement it ourselves to allow C++ GLES2 code get the length.
+          var formats = Module.ctx.getParameter(0x86A3 /*GL_COMPRESSED_TEXTURE_FORMATS*/);
+          ret = formats.length;
+          break;
+        case 0x8B9A: // GL_IMPLEMENTATION_COLOR_READ_TYPE
+          ret = 0x1401; // GL_UNSIGNED_BYTE
+          break;
+        case 0x8B9B: // GL_IMPLEMENTATION_COLOR_READ_FORMAT
+          ret = 0x1908; // GL_RGBA
+          break;
+      }
+
+      if (ret === undefined) {
+        var result = Module.ctx.getParameter(name_);
+        switch (typeof(result)) {
+          case "number":
+            ret = result;
+            break;
+          case "boolean":
+            ret = result ? 1 : 0;
+            break;
+          case "string":
+            GL.recordError(0x0500); // GL_INVALID_ENUM
+#if GL_ASSERTIONS
+            Module.printErr('GL_INVALID_ENUM in glGet' + type + 'v(' + name_ + ') on a name which returns a string!');
+#endif
+            return;
+          case "object":
+            if (result === null) {
+              GL.recordError(0x0500); // GL_INVALID_ENUM
+#if GL_ASSERTIONS
+              Module.printErr('GL_INVALID_ENUM in glGet' + type + 'v(' + name_ + ') and it returns null!');
+#endif
+              return;
+            } else if (result instanceof Float32Array ||
+                       result instanceof Uint32Array ||
+                       result instanceof Int32Array ||
+                       result instanceof Array) {
+              for (var i = 0; i < result.length; ++i) {
+                switch (type) {
+                  case 'Integer': {{{ makeSetValue('p', 'i*4', 'result[i]',     'i32') }}};   break;
+                  case 'Float':   {{{ makeSetValue('p', 'i*4', 'result[i]',     'float') }}}; break;
+                  case 'Boolean': {{{ makeSetValue('p', 'i',   'result[i] ? 1 : 0', 'i8') }}};    break;
+                  default: throw 'internal glGet error, bad type: ' + type;
+                }
+              }
+              return;
+            } else if (result instanceof WebGLBuffer ||
+                       result instanceof WebGLProgram ||
+                       result instanceof WebGLFramebuffer ||
+                       result instanceof WebGLRenderbuffer ||
+                       result instanceof WebGLTexture) {
+              ret = result.name | 0;
+            } else {
+              GL.recordError(0x0500); // GL_INVALID_ENUM
+#if GL_ASSERTIONS
+              Module.printErr('GL_INVALID_ENUM in glGet' + type + 'v: Unknown object returned from WebGL getParameter(' + name_ + ')!');
+#endif
+              return;
+            }
+            break;
+          default:
+            GL.recordError(0x0500); // GL_INVALID_ENUM
+#if GL_ASSERTIONS
+            Module.printErr('GL_INVALID_ENUM in glGetIntegerv: Native code calling glGet' + type + 'v(' + name_ + ') and it returns ' + result + ' of type ' + typeof(result) + '!');
+#endif
+            return;
+        }
+      }
+
+      switch (type) {
+        case 'Integer': {{{ makeSetValue('p', '0', 'ret', 'i32') }}};    break;
+        case 'Float':   {{{ makeSetValue('p', '0', 'ret', 'float') }}};  break;
+        case 'Boolean': {{{ makeSetValue('p', '0', 'ret ? 1 : 0', 'i8') }}}; break;
+        default: throw 'internal glGet error, bad type: ' + type;
+      }
+    },  
+
     getTexPixelData: function(type, format, width, height, pixels, internalFormat) {
       var sizePerPixel;
       switch (type) {
@@ -288,6 +387,22 @@ var LibraryGL = {
       }
     },
 
+#if GL_FFP_ONLY
+    enabledClientAttribIndices: [],
+    enableVertexAttribArray: function enableVertexAttribArray(index) {
+      if (!GL.enabledClientAttribIndices[index]) {
+        GL.enabledClientAttribIndices[index] = true;
+        Module.ctx.enableVertexAttribArray(index);
+      }
+    },
+    disableVertexAttribArray: function disableVertexAttribArray(index) {
+      if (GL.enabledClientAttribIndices[index]) {
+        GL.enabledClientAttribIndices[index] = false;
+        Module.ctx.disableVertexAttribArray(index);
+      }
+    },
+#endif
+
 #if FULL_ES2
     calcBufLength: function calcBufLength(size, type, stride, count) {
       if (stride > 0) {
@@ -554,214 +669,17 @@ var LibraryGL = {
 
   glGetIntegerv__sig: 'vii',
   glGetIntegerv: function(name_, p) {
-    switch(name_) { // Handle a few trivial GLES values
-      case 0x8DFA: // GL_SHADER_COMPILER
-        {{{ makeSetValue('p', '0', '1', 'i32') }}};
-        return;
-      case 0x8DF8: // GL_SHADER_BINARY_FORMATS
-      case 0x8DF9: // GL_NUM_SHADER_BINARY_FORMATS
-        {{{ makeSetValue('p', '0', '0', 'i32') }}};
-        return;
-      case 0x86A2: // GL_NUM_COMPRESSED_TEXTURE_FORMATS
-        // WebGL doesn't have GL_NUM_COMPRESSED_TEXTURE_FORMATS (it's obsolete since GL_COMPRESSED_TEXTURE_FORMATS returns a JS array that can be queried for length),
-        // so implement it ourselves to allow C++ GLES2 code get the length.
-        var formats = Module.ctx.getParameter(0x86A3 /*GL_COMPRESSED_TEXTURE_FORMATS*/);
-        {{{ makeSetValue('p', '0', 'formats.length', 'i32') }}};
-        return;
-    }
-    var result = Module.ctx.getParameter(name_);
-    switch (typeof(result)) {
-      case "number":
-        {{{ makeSetValue('p', '0', 'result', 'i32') }}};
-        break;
-      case "boolean":
-        {{{ makeSetValue('p', '0', 'result ? 1 : 0', 'i8') }}};
-        break;
-      case "string":
-        GL.recordError(0x0500/*GL_INVALID_ENUM*/);
-#if GL_ASSERTIONS
-        Module.printErr('GL_INVALID_ENUM in glGetIntegerv: Native code calling glGetIntegerv(' + name_ + ') on a name which returns a string!');
-#endif
-        return;
-      case "object":
-        if (result === null) {
-          {{{ makeSetValue('p', '0', '0', 'i32') }}};
-        } else if (result instanceof Float32Array ||
-                   result instanceof Uint32Array ||
-                   result instanceof Int32Array ||
-                   result instanceof Array) {
-          for (var i = 0; i < result.length; ++i) {
-            {{{ makeSetValue('p', 'i*4', 'result[i]', 'i32') }}};
-          }
-        } else if (result instanceof WebGLBuffer) {
-          {{{ makeSetValue('p', '0', 'result.name | 0', 'i32') }}};
-        } else if (result instanceof WebGLProgram) {
-          {{{ makeSetValue('p', '0', 'result.name | 0', 'i32') }}};
-        } else if (result instanceof WebGLFramebuffer) {
-          {{{ makeSetValue('p', '0', 'result.name | 0', 'i32') }}};
-        } else if (result instanceof WebGLRenderbuffer) {
-          {{{ makeSetValue('p', '0', 'result.name | 0', 'i32') }}};
-        } else if (result instanceof WebGLTexture) {
-          {{{ makeSetValue('p', '0', 'result.name | 0', 'i32') }}};
-        } else {
-          GL.recordError(0x0500/*GL_INVALID_ENUM*/);
-#if GL_ASSERTIONS
-          Module.printErr('GL_INVALID_ENUM in glGetIntegerv: Unknown object returned from WebGL getParameter(' + name_ + ')!');
-#endif
-          return;
-        }
-        break;
-      default:
-        GL.recordError(0x0500/*GL_INVALID_ENUM*/);
-#if GL_ASSERTIONS
-        Module.printErr('GL_INVALID_ENUM in glGetIntegerv: Native code calling glGetIntegerv(' + name_ + ') and it returns ' + result + ' of type ' + typeof(result) + '!');
-#endif
-        return;
-    }
+    return GL.get(name_, p, 'Integer');
   },
 
   glGetFloatv__sig: 'vii',
   glGetFloatv: function(name_, p) {
-    switch(name_) {
-      case 0x8DFA: // GL_SHADER_COMPILER
-        {{{ makeSetValue('p', '0', '1', 'float') }}};
-        return;
-      case 0x8DF8: // GL_SHADER_BINARY_FORMATS
-        GL.recordError(0x0500/*GL_INVALID_ENUM*/);
-#if GL_ASSERTIONS
-        Module.printErr('GL_INVALID_ENUM in glGetFloatv(GL_SHADER_BINARY_FORMATS): Invalid parameter type!');
-#endif
-        return;
-      case 0x8DF9: // GL_NUM_SHADER_BINARY_FORMATS
-        {{{ makeSetValue('p', '0', '0', 'float') }}};
-        return;
-      case 0x86A2: // GL_NUM_COMPRESSED_TEXTURE_FORMATS
-        // WebGL doesn't have GL_NUM_COMPRESSED_TEXTURE_FORMATS (it's obsolete since GL_COMPRESSED_TEXTURE_FORMATS returns a JS array that can be queried for length),
-        // so implement it ourselves to allow C++ GLES2 code get the length.
-        var formats = Module.ctx.getParameter(0x86A3 /*GL_COMPRESSED_TEXTURE_FORMATS*/);
-        {{{ makeSetValue('p', '0', 'formats.length', 'float') }}};
-        return;
-    }
-    
-    var result = Module.ctx.getParameter(name_);
-    switch (typeof(result)) {
-      case "number":
-        {{{ makeSetValue('p', '0', 'result', 'float') }}};
-        break;
-      case "boolean":
-        {{{ makeSetValue('p', '0', 'result ? 1.0 : 0.0', 'float') }}};
-        break;
-      case "string":
-          {{{ makeSetValue('p', '0', '0', 'float') }}};
-      case "object":
-        if (result === null) {
-          GL.recordError(0x0500/*GL_INVALID_ENUM*/);
-#if GL_ASSERTIONS
-          Module.printErr('GL_INVALID_ENUM in glGetFloatv: Native code calling glGetFloatv(' + name_ + ') and it returns null!');
-#endif
-          return;
-        } else if (result instanceof Float32Array ||
-                   result instanceof Uint32Array ||
-                   result instanceof Int32Array ||
-                   result instanceof Array) {
-          for (var i = 0; i < result.length; ++i) {
-            {{{ makeSetValue('p', 'i*4', 'result[i]', 'float') }}};
-          }
-        } else if (result instanceof WebGLBuffer) {
-          {{{ makeSetValue('p', '0', 'result.name | 0', 'float') }}};
-        } else if (result instanceof WebGLProgram) {
-          {{{ makeSetValue('p', '0', 'result.name | 0', 'float') }}};
-        } else if (result instanceof WebGLFramebuffer) {
-          {{{ makeSetValue('p', '0', 'result.name | 0', 'float') }}};
-        } else if (result instanceof WebGLRenderbuffer) {
-          {{{ makeSetValue('p', '0', 'result.name | 0', 'float') }}};
-        } else if (result instanceof WebGLTexture) {
-          {{{ makeSetValue('p', '0', 'result.name | 0', 'float') }}};
-        } else {
-          GL.recordError(0x0500/*GL_INVALID_ENUM*/);
-#if GL_ASSERTIONS
-          Module.printErr('GL_INVALID_ENUM in glGetFloatv: Native code calling glGetFloatv(' + name_ + ') and it returns ' + result + ' of type ' + typeof(result) + '!');
-#endif
-          return;
-        }
-        break;
-      default:
-        GL.recordError(0x0500/*GL_INVALID_ENUM*/);
-#if GL_ASSERTIONS
-        Module.printErr('GL_INVALID_ENUM in glGetFloatv: Native code calling glGetFloatv(' + name_ + ') and it returns ' + result + ' of type ' + typeof(result) + '!');
-#endif
-        return;
-    }
+    return GL.get(name_, p, 'Float');
   },
 
   glGetBooleanv__sig: 'vii',
   glGetBooleanv: function(name_, p) {
-    switch(name_) {
-      case 0x8DFA: // GL_SHADER_COMPILER
-        {{{ makeSetValue('p', '0', '1', 'i8') }}};
-        return;
-      case 0x8DF8: // GL_SHADER_BINARY_FORMATS
-        GL.recordError(0x0500/*GL_INVALID_ENUM*/);
-#if GL_ASSERTIONS
-        Module.printErr('GL_INVALID_ENUM in glGetBooleanv(GL_SHADER_BINARY_FORMATS): Invalid parameter type!');
-#endif
-        return;
-      case 0x8DF9: // GL_NUM_SHADER_BINARY_FORMATS
-        {{{ makeSetValue('p', '0', '0', 'i8') }}};
-        return;
-      case 0x86A2: // GL_NUM_COMPRESSED_TEXTURE_FORMATS
-        // WebGL doesn't have GL_NUM_COMPRESSED_TEXTURE_FORMATS (it's obsolete since GL_COMPRESSED_TEXTURE_FORMATS returns a JS array that can be queried for length),
-        // so implement it ourselves to allow C++ GLES2 code get the length.
-        var hasCompressedFormats = Module.ctx.getParameter(0x86A3 /*GL_COMPRESSED_TEXTURE_FORMATS*/).length > 0 ? 1 : 0;
-        {{{ makeSetValue('p', '0', 'hasCompressedFormats', 'i8') }}};
-        return;
-    }
-
-    var result = Module.ctx.getParameter(name_);
-    switch (typeof(result)) {
-      case "number":
-        {{{ makeSetValue('p', '0', 'result != 0', 'i8') }}};
-        break;
-      case "boolean":
-        {{{ makeSetValue('p', '0', 'result != 0', 'i8') }}};
-        break;
-      case "string":
-        GL.recordError(0x0500/*GL_INVALID_ENUM*/);
-#if GL_ASSERTIONS
-        Module.printErr('GL_INVALID_ENUM in glGetBooleanv: Native code calling glGetBooleanv(' + name_ + ') on a name which returns a string!');
-#endif
-        return;
-      case "object":
-        if (result === null) {
-          {{{ makeSetValue('p', '0', '0', 'i8') }}};
-        } else if (result instanceof Float32Array ||
-                   result instanceof Uint32Array ||
-                   result instanceof Int32Array ||
-                   result instanceof Array) {
-          for (var i = 0; i < result.length; ++i) {