15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/var_array_buffer.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <limits> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/c/ppb_var_array_buffer.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/logging.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/module_impl.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace pp { 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)template <> const char* interface_name<PPB_VarArrayBuffer_1_0>() { 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PPB_VAR_ARRAY_BUFFER_INTERFACE_1_0; 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 23c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)VarArrayBuffer::VarArrayBuffer() { 24c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ConstructWithSize(0); 25c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 26c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)VarArrayBuffer::VarArrayBuffer(const Var& var) : Var(var) { 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!var.is_array_buffer()) { 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_NOTREACHED(); 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_ = PP_MakeNull(); 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)VarArrayBuffer::VarArrayBuffer(uint32_t size_in_bytes) { 35c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ConstructWithSize(size_in_bytes); 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)pp::VarArrayBuffer& VarArrayBuffer::operator=(const VarArrayBuffer& other) { 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Var::operator=(other); 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return *this; 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)pp::Var& VarArrayBuffer::operator=(const Var& other) { 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (other.is_array_buffer()) { 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return Var::operator=(other); 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_NOTREACHED(); 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return *this; 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)uint32_t VarArrayBuffer::ByteLength() const { 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) uint32_t byte_length = std::numeric_limits<uint32_t>::max(); 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (is_array_buffer() && has_interface<PPB_VarArrayBuffer_1_0>()) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) get_interface<PPB_VarArrayBuffer_1_0>()->ByteLength(var_, &byte_length); 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_NOTREACHED(); 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return byte_length; 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void* VarArrayBuffer::Map() { 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (is_array_buffer() && has_interface<PPB_VarArrayBuffer_1_0>()) 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return get_interface<PPB_VarArrayBuffer_1_0>()->Map(var_); 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_NOTREACHED(); 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void VarArrayBuffer::Unmap() { 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (is_array_buffer() && has_interface<PPB_VarArrayBuffer_1_0>()) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) get_interface<PPB_VarArrayBuffer_1_0>()->Unmap(var_); 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PP_NOTREACHED(); 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 76c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void VarArrayBuffer::ConstructWithSize(uint32_t size_in_bytes) { 77c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) PP_DCHECK(is_undefined()); 78c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 79c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (has_interface<PPB_VarArrayBuffer_1_0>()) { 80c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) var_ = get_interface<PPB_VarArrayBuffer_1_0>()->Create(size_in_bytes); 81c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } else { 82c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) PP_NOTREACHED(); 83c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) var_ = PP_MakeNull(); 84c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) } 85c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) is_managed_ = true; 86c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 87c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace pp 89