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67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* constants for frame state bits and a type to store them in a uint64_t */
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#ifndef nsFrameState_h_
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#define nsFrameState_h_
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#include <stdint.h>
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typedef uint64_t nsFrameState_size_t;
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#define NS_FRAME_STATE_BIT(n_) (nsFrameState(nsFrameState_size_t(1) << (n_)))
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enum nsFrameState : nsFrameState_size_t {
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#define FRAME_STATE_BIT(group_, value_, name_) \
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name_ = NS_FRAME_STATE_BIT(value_),
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#include "nsFrameStateBits.h"
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#undef FRAME_STATE_BIT
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};
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inline nsFrameState operator|(nsFrameState aLeft, nsFrameState aRight)
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{
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return nsFrameState(nsFrameState_size_t(aLeft) | nsFrameState_size_t(aRight));
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}
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inline nsFrameState operator&(nsFrameState aLeft, nsFrameState aRight)
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{
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return nsFrameState(nsFrameState_size_t(aLeft) & nsFrameState_size_t(aRight));
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}
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inline nsFrameState& operator|=(nsFrameState& aLeft, nsFrameState aRight)
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{
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aLeft = aLeft | aRight;
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return aLeft;
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}
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inline nsFrameState& operator&=(nsFrameState& aLeft, nsFrameState aRight)
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{
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aLeft = aLeft & aRight;
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return aLeft;
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}
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inline nsFrameState operator~(nsFrameState aRight)
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{
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return nsFrameState(~nsFrameState_size_t(aRight));
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}
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inline nsFrameState operator^(nsFrameState aLeft, nsFrameState aRight)
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{
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return nsFrameState(nsFrameState_size_t(aLeft) ^ nsFrameState_size_t(aRight));
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}
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inline nsFrameState& operator^=(nsFrameState& aLeft, nsFrameState aRight)
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{
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aLeft = aLeft ^ aRight;
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return aLeft;
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}
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// Bits 20-31 and 60-63 of the frame state are reserved for implementations.
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#define NS_FRAME_IMPL_RESERVED nsFrameState(0xF0000000FFF00000)
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#define NS_FRAME_RESERVED ~NS_FRAME_IMPL_RESERVED
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#endif /* nsFrameState_h_ */
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