| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ppapi/cpp/var_array_buffer.h" |
| |
| #include <limits> |
| |
| #include "ppapi/c/ppb_var_array_buffer.h" |
| #include "ppapi/cpp/logging.h" |
| #include "ppapi/cpp/module_impl.h" |
| |
| namespace pp { |
| |
| namespace { |
| |
| template <> const char* interface_name<PPB_VarArrayBuffer_1_0>() { |
| return PPB_VAR_ARRAY_BUFFER_INTERFACE_1_0; |
| } |
| |
| } // namespace |
| |
| VarArrayBuffer::VarArrayBuffer() { |
| ConstructWithSize(0); |
| } |
| |
| VarArrayBuffer::VarArrayBuffer(const Var& var) : Var(var) { |
| if (!var.is_array_buffer()) { |
| PP_NOTREACHED(); |
| var_ = PP_MakeNull(); |
| } |
| } |
| |
| VarArrayBuffer::VarArrayBuffer(uint32_t size_in_bytes) { |
| ConstructWithSize(size_in_bytes); |
| } |
| |
| pp::VarArrayBuffer& VarArrayBuffer::operator=(const VarArrayBuffer& other) { |
| Var::operator=(other); |
| return *this; |
| } |
| |
| pp::Var& VarArrayBuffer::operator=(const Var& other) { |
| if (other.is_array_buffer()) { |
| return Var::operator=(other); |
| } else { |
| PP_NOTREACHED(); |
| return *this; |
| } |
| } |
| |
| uint32_t VarArrayBuffer::ByteLength() const { |
| uint32_t byte_length = std::numeric_limits<uint32_t>::max(); |
| if (is_array_buffer() && has_interface<PPB_VarArrayBuffer_1_0>()) |
| get_interface<PPB_VarArrayBuffer_1_0>()->ByteLength(var_, &byte_length); |
| else |
| PP_NOTREACHED(); |
| return byte_length; |
| } |
| |
| void* VarArrayBuffer::Map() { |
| if (is_array_buffer() && has_interface<PPB_VarArrayBuffer_1_0>()) |
| return get_interface<PPB_VarArrayBuffer_1_0>()->Map(var_); |
| PP_NOTREACHED(); |
| return NULL; |
| } |
| |
| void VarArrayBuffer::Unmap() { |
| if (is_array_buffer() && has_interface<PPB_VarArrayBuffer_1_0>()) |
| get_interface<PPB_VarArrayBuffer_1_0>()->Unmap(var_); |
| else |
| PP_NOTREACHED(); |
| } |
| |
| |
| void VarArrayBuffer::ConstructWithSize(uint32_t size_in_bytes) { |
| PP_DCHECK(is_undefined()); |
| |
| if (has_interface<PPB_VarArrayBuffer_1_0>()) { |
| var_ = get_interface<PPB_VarArrayBuffer_1_0>()->Create(size_in_bytes); |
| } else { |
| PP_NOTREACHED(); |
| var_ = PP_MakeNull(); |
| } |
| is_managed_ = true; |
| } |
| |
| } // namespace pp |