62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <utils/Errors.h>
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#include <binder/Parcel.h>
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#include <private/surfaceflinger/LayerState.h>
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namespace android {
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status_t layer_state_t::write(Parcel& output) const
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{
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status_t err;
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size_t len = transparentRegion.write(NULL, 0);
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err = output.writeInt32(len);
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if (err < NO_ERROR) return err;
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void* buf = output.writeInplace(len);
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if (buf == NULL) return NO_MEMORY;
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err = transparentRegion.write(buf, len);
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if (err < NO_ERROR) return err;
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// NOTE: regions are at the end of the structure
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size_t size = sizeof(layer_state_t);
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size -= sizeof(transparentRegion);
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err = output.write(this, size);
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return err;
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}
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status_t layer_state_t::read(const Parcel& input)
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{
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status_t err;
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size_t len = input.readInt32();
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void const* buf = input.readInplace(len);
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if (buf == NULL) return NO_MEMORY;
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err = transparentRegion.read(buf);
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if (err < NO_ERROR) return err;
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// NOTE: regions are at the end of the structure
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size_t size = sizeof(layer_state_t);
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size -= sizeof(transparentRegion);
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input.read(this, size);
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return NO_ERROR;
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}
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}; // namespace android
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