1 // Copyright (c) 2011 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/cpp/dev/buffer_dev.h" 6 7 #include "ppapi/c/dev/ppb_buffer_dev.h" 8 #include "ppapi/cpp/instance_handle.h" 9 #include "ppapi/cpp/module.h" 10 #include "ppapi/cpp/module_impl.h" 11 12 namespace pp { 13 14 namespace { 15 interface_name()16template <> const char* interface_name<PPB_Buffer_Dev>() { 17 return PPB_BUFFER_DEV_INTERFACE; 18 } 19 20 } // namespace 21 Buffer_Dev()22Buffer_Dev::Buffer_Dev() : data_(NULL), size_(0) { 23 } 24 Buffer_Dev(const Buffer_Dev & other)25Buffer_Dev::Buffer_Dev(const Buffer_Dev& other) 26 : Resource(other) { 27 Init(); 28 } 29 Buffer_Dev(PP_Resource resource)30Buffer_Dev::Buffer_Dev(PP_Resource resource) 31 : Resource(resource) { 32 Init(); 33 } 34 Buffer_Dev(const InstanceHandle & instance,uint32_t size)35Buffer_Dev::Buffer_Dev(const InstanceHandle& instance, uint32_t size) 36 : data_(NULL), 37 size_(0) { 38 if (!has_interface<PPB_Buffer_Dev>()) 39 return; 40 41 PassRefFromConstructor(get_interface<PPB_Buffer_Dev>()->Create( 42 instance.pp_instance(), size)); 43 Init(); 44 } 45 Buffer_Dev(PassRef,PP_Resource resource)46Buffer_Dev::Buffer_Dev(PassRef, PP_Resource resource) 47 : Resource(PassRef(), resource) { 48 Init(); 49 } 50 ~Buffer_Dev()51Buffer_Dev::~Buffer_Dev() { 52 get_interface<PPB_Buffer_Dev>()->Unmap(pp_resource()); 53 } 54 operator =(const Buffer_Dev & rhs)55Buffer_Dev& Buffer_Dev::operator=(const Buffer_Dev& rhs) { 56 Resource::operator=(rhs); 57 Init(); 58 return *this; 59 } 60 Init()61void Buffer_Dev::Init() { 62 if (get_interface<PPB_Buffer_Dev>()->Describe(pp_resource(), &size_)) { 63 data_ = get_interface<PPB_Buffer_Dev>()->Map(pp_resource()); 64 if (data_) 65 return; 66 } 67 data_ = NULL; 68 size_ = 0; 69 } 70 71 } // namespace pp 72