Perform glReadPixels with PBOs in the gpu, if PBOs are available.

gpu/command_buffer/client/gles2_implementation_unittest.cc

 // 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.
 
 // Tests for GLES2Implementation.
 
 #include "gpu/command_buffer/client/gles2_implementation.h"
 
 #include <GLES2/gl2ext.h>
 #include <GLES2/gl2extchromium.h>
@@ skipping 1420 matching lines @@
   ExpectedMemoryInfo result1 =
       GetExpectedResultMemory(sizeof(cmds::ReadPixels::Result));
   ExpectedMemoryInfo mem2 =
       GetExpectedMemory(kWidth * kHeight / 2 * kBytesPerPixel);
   ExpectedMemoryInfo result2 =
       GetExpectedResultMemory(sizeof(cmds::ReadPixels::Result));
 
   Cmds expected;
   expected.read1.Init(
       0, 0, kWidth, kHeight / 2, kFormat, kType,
-      mem1.id, mem1.offset, result1.id, result1.offset);
+      mem1.id, mem1.offset, result1.id, result1.offset,
+      false);
   expected.set_token1.Init(GetNextToken());
   expected.read2.Init(
       0, kHeight / 2, kWidth, kHeight / 2, kFormat, kType,
-      mem2.id, mem2.offset, result2.id, result2.offset);
+      mem2.id, mem2.offset, result2.id, result2.offset, false);
   expected.set_token2.Init(GetNextToken());
   scoped_ptr<int8[]> buffer(new int8[kWidth * kHeight * kBytesPerPixel]);
 
   EXPECT_CALL(*command_buffer(), OnFlush())
       .WillOnce(SetMemory(result1.ptr, static_cast<uint32>(1)))
       .WillOnce(SetMemory(result2.ptr, static_cast<uint32>(1)))
       .RetiresOnSaturation();
 
   gl_->ReadPixels(0, 0, kWidth, kHeight, kFormat, kType, buffer.get());
   EXPECT_EQ(0, memcmp(&expected, commands_, sizeof(expected)));
@@ skipping 11 matching lines @@
   const GLenum kType = 0;
 
   ExpectedMemoryInfo mem1 =
       GetExpectedMemory(kWidth * kHeight * kBytesPerPixel);
   ExpectedMemoryInfo result1 =
       GetExpectedResultMemory(sizeof(cmds::ReadPixels::Result));
 
   Cmds expected;
   expected.read.Init(
       0, 0, kWidth, kHeight, kFormat, kType,
-      mem1.id, mem1.offset, result1.id, result1.offset);
+      mem1.id, mem1.offset, result1.id, result1.offset, false);
   expected.set_token.Init(GetNextToken());
   scoped_ptr<int8[]> buffer(new int8[kWidth * kHeight * kBytesPerPixel]);
 
   EXPECT_CALL(*command_buffer(), OnFlush())
       .Times(1)
       .RetiresOnSaturation();
 
   gl_->ReadPixels(0, 0, kWidth, kHeight, kFormat, kType, buffer.get());
 }
 
@@ skipping 1379 matching lines @@
   ClearCommands();
   gl_->Enable(GL_BLEND);
   EXPECT_TRUE(NoCommandsWritten());
 }
 
 
 #include "gpu/command_buffer/client/gles2_implementation_unittest_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu