Implementation of Uint8ClampedArray.

src/runtime.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 756 matching lines @@
 
 enum TypedArrayId {
   // arrayIds below should be synchromized with typedarray.js natives.
   ARRAY_ID_UINT8 = 1,
   ARRAY_ID_INT8 = 2,
   ARRAY_ID_UINT16 = 3,
   ARRAY_ID_INT16 = 4,
   ARRAY_ID_UINT32 = 5,
   ARRAY_ID_INT32 = 6,
   ARRAY_ID_FLOAT32 = 7,
-  ARRAY_ID_FLOAT64 = 8
+  ARRAY_ID_FLOAT64 = 8,
+  ARRAY_ID_UINT8C = 9
 };
 
 
 RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArrayInitialize) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 5);
   CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, holder, 0);
   CONVERT_SMI_ARG_CHECKED(arrayId, 1);
   CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, buffer, 2);
   CONVERT_ARG_HANDLE_CHECKED(Object, byte_offset_object, 3);
@@ skipping 36 matching lines @@
     case ARRAY_ID_FLOAT32:
       elementsKind = EXTERNAL_FLOAT_ELEMENTS;
       arrayType = kExternalFloatArray;
       elementSize = 4;
       break;
     case ARRAY_ID_FLOAT64:
       elementsKind = EXTERNAL_DOUBLE_ELEMENTS;
       arrayType = kExternalDoubleArray;
       elementSize = 8;
       break;
+    case ARRAY_ID_UINT8C:
+      elementsKind = EXTERNAL_PIXEL_ELEMENTS;
+      arrayType = kExternalPixelArray;
+      elementSize = 1;
+      break;
     default:
       UNREACHABLE();
       return NULL;
   }
 
   holder->set_buffer(*buffer);
   holder->set_byte_offset(*byte_offset_object);
   holder->set_byte_length(*byte_length_object);
 
   size_t byte_offset = NumberToSize(isolate, *byte_offset_object);
@@ skipping 12525 matching lines @@
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     isolate->counters()->gc_last_resort_from_js()->Increment();
     isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags,
                                        "Runtime::PerformGC");
   }
 }
 
 
 } }  // namespace v8::internal