ppapi/proxy/plugin_array_buffer_var.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ppapi/proxy/plugin_array_buffer_var.h"
   6
   7 #include <stdlib.h>
   8
   9 #include <limits>
  10
  11 namespace ppapi {
  12
  13 PluginArrayBufferVar::PluginArrayBufferVar(uint32 size_in_bytes)
  14     : buffer_(size_in_bytes) {
  15 }
  16
  17 PluginArrayBufferVar::~PluginArrayBufferVar() {
  18 }
  19
  20 void* PluginArrayBufferVar::Map() {
  21   if (buffer_.empty())
  22     return NULL;
  23   return &(buffer_[0]);
  24 }
  25
  26 void PluginArrayBufferVar::Unmap() {
  27   // We don't actually use shared memory yet, so do nothing.
  28 }
  29
  30 uint32 PluginArrayBufferVar::ByteLength() {
  31   return static_cast<uint32>(buffer_.size());
  32 }
  33
  34 }  // namespace ppapi
  35