8b33f03232
no change of functionality -- the old behavior is implemented on top of this new protocol. this new protocol will allow, eventually, to pass informations about displays and layer stacks. Change-Id: Ic6c2295e61ec8ecbc8ce01ab7664e35d928202fc
96 lines
2.8 KiB
C++
96 lines
2.8 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 <gui/ISurfaceComposerClient.h>
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#include <gui/ISurfaceTexture.h>
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#include <private/gui/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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status_t ComposerState::write(Parcel& output) const {
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output.writeStrongBinder(client->asBinder());
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return state.write(output);
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}
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status_t ComposerState::read(const Parcel& input) {
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client = interface_cast<ISurfaceComposerClient>(input.readStrongBinder());
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return state.read(input);
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}
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status_t DisplayState::write(Parcel& output) const {
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output.writeStrongBinder(surface->asBinder());
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output.writeInt32(displayId);
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output.writeInt32(layerStack);
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output.writeInt32(orientation);
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memcpy(output.writeInplace(sizeof(Rect)), &viewport, sizeof(Rect));
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memcpy(output.writeInplace(sizeof(Rect)), &frame, sizeof(Rect));
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return NO_ERROR;
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}
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status_t DisplayState::read(const Parcel& input) {
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surface = interface_cast<ISurfaceTexture>(input.readStrongBinder());
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displayId = input.readInt32();
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layerStack = input.readInt32();
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orientation = input.readInt32();
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memcpy(&viewport, input.readInplace(sizeof(Rect)), sizeof(Rect));
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memcpy(&frame, input.readInplace(sizeof(Rect)), sizeof(Rect));
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return NO_ERROR;
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}
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}; // namespace android
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