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// 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/shared_impl/ppb_var_shared.h"
#include <limits>
#include "ppapi/c/ppb_var.h"
#include "ppapi/c/ppb_var_array_buffer.h"
#include "ppapi/c/pp_var.h"
#include "ppapi/shared_impl/ppapi_globals.h"
#include "ppapi/shared_impl/proxy_lock.h"
#include "ppapi/shared_impl/var.h"
#include "ppapi/shared_impl/var_tracker.h"
using ppapi::PpapiGlobals;
using ppapi::StringVar;
namespace ppapi {
namespace {
// PPB_Var methods -------------------------------------------------------------
void AddRefVar(PP_Var var) {
ProxyAutoLock lock;
PpapiGlobals::Get()->GetVarTracker()->AddRefVar(var);
}
void ReleaseVar(PP_Var var) {
ProxyAutoLock lock;
PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(var);
}
PP_Var VarFromUtf8(const char* data, uint32_t len) {
ProxyAutoLock lock;
return StringVar::StringToPPVar(data, len);
}
PP_Var VarFromUtf8_1_0(PP_Module /*module*/, const char* data, uint32_t len) {
return VarFromUtf8(data, len);
}
const char* VarToUtf8(PP_Var var, uint32_t* len) {
ProxyAutoLock lock;
StringVar* str = StringVar::FromPPVar(var);
if (str) {
*len = static_cast<uint32_t>(str->value().size());
return str->value().c_str();
}
*len = 0;
return NULL;
}
const PPB_Var var_interface = {
&AddRefVar,
&ReleaseVar,
&VarFromUtf8,
&VarToUtf8
};
const PPB_Var_1_0 var_interface1_0 = {
&AddRefVar,
&ReleaseVar,
&VarFromUtf8_1_0,
&VarToUtf8
};
// PPB_VarArrayBuffer methods --------------------------------------------------
PP_Var CreateArrayBufferVar(uint32_t size_in_bytes) {
ProxyAutoLock lock;
return PpapiGlobals::Get()->GetVarTracker()->MakeArrayBufferPPVar(
size_in_bytes);
}
PP_Bool ByteLength(PP_Var array, uint32_t* byte_length) {
ProxyAutoLock lock;
ArrayBufferVar* buffer = ArrayBufferVar::FromPPVar(array);
if (!buffer)
return PP_FALSE;
*byte_length = buffer->ByteLength();
return PP_TRUE;
}
void* Map(PP_Var array) {
ProxyAutoLock lock;
ArrayBufferVar* buffer = ArrayBufferVar::FromPPVar(array);
if (!buffer)
return NULL;
return buffer->Map();
}
void Unmap(PP_Var array) {
ProxyAutoLock lock;
ArrayBufferVar* buffer = ArrayBufferVar::FromPPVar(array);
if (buffer)
buffer->Unmap();
}
const PPB_VarArrayBuffer_1_0 var_arraybuffer_interface = {
&CreateArrayBufferVar,
&ByteLength,
&Map,
&Unmap
};
} // namespace
// static
const PPB_Var_1_1* PPB_Var_Shared::GetVarInterface1_1() {
return &var_interface;
}
// static
const PPB_Var_1_0* PPB_Var_Shared::GetVarInterface1_0() {
return &var_interface1_0;
}
// static
const PPB_VarArrayBuffer_1_0* PPB_Var_Shared::GetVarArrayBufferInterface1_0() {
return &var_arraybuffer_interface;
}
} // namespace ppapi
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