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// Copyright (c) 2006-2008 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 "gpu/command_buffer/service/gpu_processor.h"
#include "gpu/np_utils/np_browser.h"
using ::base::SharedMemory;
using np_utils::NPBrowser;
namespace command_buffer {
GPUProcessor::~GPUProcessor() {
}
namespace {
void InvokeProcessCommands(void* data) {
static_cast<GPUProcessor*>(data)->ProcessCommands();
}
} // namespace anonymous
void GPUProcessor::ProcessCommands() {
if (command_buffer_->GetErrorStatus())
return;
parser_->set_put(command_buffer_->GetPutOffset());
int commands_processed = 0;
while (commands_processed < commands_per_update_ && !parser_->IsEmpty()) {
command_buffer::parse_error::ParseError parse_error =
parser_->ProcessCommand();
switch (parse_error) {
case command_buffer::parse_error::kParseUnknownCommand:
case command_buffer::parse_error::kParseInvalidArguments:
command_buffer_->SetParseError(parse_error);
break;
case command_buffer::parse_error::kParseInvalidSize:
case command_buffer::parse_error::kParseOutOfBounds:
command_buffer_->SetParseError(parse_error);
command_buffer_->RaiseErrorStatus();
return;
}
++commands_processed;
}
command_buffer_->SetGetOffset(static_cast<int32>(parser_->get()));
if (!parser_->IsEmpty()) {
NPBrowser::get()->PluginThreadAsyncCall(npp_, InvokeProcessCommands, this);
}
}
void *GPUProcessor::GetSharedMemoryAddress(int32 shm_id) {
::base::SharedMemory* shared_memory =
command_buffer_->GetTransferBuffer(shm_id);
if (!shared_memory)
return NULL;
if (!shared_memory->memory()) {
if (!shared_memory->Map(shared_memory->max_size()))
return NULL;
}
return shared_memory->memory();
}
// TODO(apatrick): Consolidate this with the above and return both the address
// and size.
size_t GPUProcessor::GetSharedMemorySize(int32 shm_id) {
::base::SharedMemory* shared_memory =
command_buffer_->GetTransferBuffer(shm_id);
if (!shared_memory)
return 0;
return shared_memory->max_size();
}
void GPUProcessor::set_token(int32 token) {
command_buffer_->SetToken(token);
}
} // namespace command_buffer
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