linux: implement gpu plugin

gpu/command_buffer/service/gpu_processor.cc

 // 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;
 
   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);
 }
 
 }  // namespace gpu