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// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ppapi/cpp/dev/buffer_dev.h"
#include "ppapi/c/dev/ppb_buffer_dev.h"
#include "ppapi/cpp/instance_handle.h"
#include "ppapi/cpp/module.h"
#include "ppapi/cpp/module_impl.h"
namespace pp {
namespace {
template <> const char* interface_name<PPB_Buffer_Dev>() {
return PPB_BUFFER_DEV_INTERFACE;
}
} // namespace
Buffer_Dev::Buffer_Dev() : data_(NULL), size_(0) {
}
Buffer_Dev::Buffer_Dev(const Buffer_Dev& other)
: Resource(other) {
Init();
}
Buffer_Dev::Buffer_Dev(PP_Resource resource)
: Resource(resource) {
Init();
}
Buffer_Dev::Buffer_Dev(const InstanceHandle& instance, uint32_t size)
: data_(NULL),
size_(0) {
if (!has_interface<PPB_Buffer_Dev>())
return;
PassRefFromConstructor(get_interface<PPB_Buffer_Dev>()->Create(
instance.pp_instance(), size));
Init();
}
Buffer_Dev::Buffer_Dev(PassRef, PP_Resource resource)
: Resource(PassRef(), resource) {
Init();
}
Buffer_Dev::~Buffer_Dev() {
get_interface<PPB_Buffer_Dev>()->Unmap(pp_resource());
}
Buffer_Dev& Buffer_Dev::operator=(const Buffer_Dev& rhs) {
Resource::operator=(rhs);
Init();
return *this;
}
void Buffer_Dev::Init() {
if (get_interface<PPB_Buffer_Dev>()->Describe(pp_resource(), &size_)) {
data_ = get_interface<PPB_Buffer_Dev>()->Map(pp_resource());
if (data_)
return;
}
Clear();
data_ = NULL;
size_ = 0;
}
} // namespace pp
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