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// Copyright (c) 2009 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 "base/message_loop.h"
#include "gpu/command_buffer/service/gpu_processor.h"
using ::base::SharedMemory;
namespace gpu {
GPUProcessor::GPUProcessor(CommandBuffer* command_buffer)
: command_buffer_(command_buffer),
commands_per_update_(100) {
DCHECK(command_buffer);
decoder_.reset(gles2::GLES2Decoder::Create());
decoder_->set_engine(this);
}
GPUProcessor::GPUProcessor(CommandBuffer* command_buffer,
gles2::GLES2Decoder* decoder,
CommandParser* parser,
int commands_per_update)
: command_buffer_(command_buffer),
commands_per_update_(commands_per_update) {
DCHECK(command_buffer);
decoder_.reset(decoder);
parser_.reset(parser);
}
GPUProcessor::~GPUProcessor() {
}
void GPUProcessor::ProcessCommands() {
if (command_buffer_->GetErrorStatus())
return;
if (decoder_.get()) {
// TODO(apatrick): need to do more than this on failure.
if (!decoder_->MakeCurrent())
return;
}
parser_->set_put(command_buffer_->GetPutOffset());
int commands_processed = 0;
while (commands_processed < commands_per_update_ && !parser_->IsEmpty()) {
parse_error::ParseError parse_error = parser_->ProcessCommand();
switch (parse_error) {
case parse_error::kParseUnknownCommand:
case parse_error::kParseInvalidArguments:
command_buffer_->SetParseError(parse_error);
break;
case parse_error::kParseInvalidSize:
case parse_error::kParseOutOfBounds:
command_buffer_->SetParseError(parse_error);
command_buffer_->RaiseErrorStatus();
return;
case gpu::parse_error::kParseNoError:
break;
}
++commands_processed;
}
command_buffer_->SetGetOffset(static_cast<int32>(parser_->get()));
if (!parser_->IsEmpty()) {
MessageLoop::current()->PostTask(
FROM_HERE, NewRunnableMethod(this, &GPUProcessor::ProcessCommands));
}
}
Buffer GPUProcessor::GetSharedMemoryBuffer(int32 shm_id) {
return command_buffer_->GetTransferBuffer(shm_id);
}
void GPUProcessor::set_token(int32 token) {
command_buffer_->SetToken(token);
}
bool GPUProcessor::SetGetOffset(int32 offset) {
if (parser_->set_get(offset)) {
command_buffer_->SetGetOffset(static_cast<int32>(parser_->get()));
return true;
}
return false;
}
int32 GPUProcessor::GetGetOffset() {
return parser_->get();
}
} // namespace gpu
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