command_buffer: Batch command processing to reduce handler overheads.

gpu/command_buffer/service/gpu_scheduler_unittest.cc

 // Copyright (c) 2011 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/message_loop.h"
 #include "gpu/command_buffer/common/command_buffer_mock.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder_mock.h"
 #include "gpu/command_buffer/service/gpu_scheduler.h"
 #include "gpu/command_buffer/service/mocks.h"
@@ skipping 30 matching lines @@
     memset(buffer_, 0, kRingBufferSize);
 
     command_buffer_.reset(new MockCommandBuffer);
 
     CommandBuffer::State default_state;
     default_state.num_entries = kRingBufferEntries;
     ON_CALL(*command_buffer_.get(), GetLastState())
         .WillByDefault(Return(default_state));
 
     decoder_.reset(new gles2::MockGLES2Decoder());
+    // Install FakeDoCommands handler so we can use individual DoCommand()
+    // expectations.
+    EXPECT_CALL(*decoder_, DoCommands(_, _, _, _)).WillRepeatedly(
+        Invoke(decoder_.get(), &gles2::MockGLES2Decoder::FakeDoCommands));
+
     scheduler_.reset(new gpu::GpuScheduler(command_buffer_.get(),
                                            decoder_.get(),
                                            decoder_.get()));
     EXPECT_CALL(*command_buffer_, GetTransferBuffer(kTransferBufferId))
        .WillOnce(Return(shared_memory_buffer_));
     EXPECT_CALL(*command_buffer_, SetGetOffset(0));
     EXPECT_TRUE(scheduler_->SetGetBuffer(kTransferBufferId));
   }
 
   virtual void TearDown() {
@@ skipping 79 matching lines @@
   header[2].size = 1;
 
   CommandBuffer::State state;
 
   state.put_offset = 3;
   EXPECT_CALL(*command_buffer_, GetLastState())
     .WillRepeatedly(Return(state));
 
   EXPECT_CALL(*decoder_, DoCommand(7, 1, &buffer_[0]))
     .WillOnce(Return(error::kNoError));
-  EXPECT_CALL(*command_buffer_, SetGetOffset(2));
 
   EXPECT_CALL(*decoder_, DoCommand(8, 0, &buffer_[2]))
     .WillOnce(Return(error::kNoError));
   EXPECT_CALL(*command_buffer_, SetGetOffset(3));
 
   scheduler_->PutChanged();
 }
 
 TEST_F(GpuSchedulerTest, SetsErrorCodeOnCommandBuffer) {
   CommandHeader* header = reinterpret_cast<CommandHeader*>(&buffer_[0]);
@@ skipping 47 matching lines @@
 
   EXPECT_EQ(kRingBufferSize, scheduler_->GetSharedMemoryBuffer(7)->size());
 }
 
 TEST_F(GpuSchedulerTest, SetTokenForwardsToCommandBuffer) {
   EXPECT_CALL(*command_buffer_, SetToken(7));
   scheduler_->set_token(7);
 }
 
 }  // namespace gpu