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// 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.
#ifndef GPU_COMMAND_BUFFER_COMMON_CONSTANTS_H_
#define GPU_COMMAND_BUFFER_COMMON_CONSTANTS_H_
#include "../common/types.h"
namespace gpu {
typedef int32 CommandBufferOffset;
const CommandBufferOffset kInvalidCommandBufferOffset = -1;
// This enum must stay in sync with NPDeviceContext3DError.
namespace error {
enum Error {
kNoError,
kInvalidSize,
kOutOfBounds,
kUnknownCommand,
kInvalidArguments,
kLostContext,
kGenericError,
// This is not an error. It is returned by commands that want to
// be called again until they return a different error. For
// example: WaitLatch.
kWaiting,
// This is not an error. It is returned by commands to mark a position
// in the command buffer that should not be issued to the the GL backend
// until no more than a fixed number of such positions have already been
// issued.
kThrottle
};
}
// Invalid shared memory Id, returned by RegisterSharedMemory in case of
// failure.
const int32 kInvalidSharedMemoryId = -1;
// Common Command Buffer shared memory transfer buffer ID.
const int32 kCommandBufferSharedMemoryId = 4;
// Common Latch shared memory transfer buffer ID.
const int32 kLatchSharedMemoryId = 5;
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_COMMON_CONSTANTS_H_
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