LayerState.cpp revision 0617894190ea0c3ee50889bee1d4df0f369b0761 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <utils/Errors.h>
18#include <binder/Parcel.h>
19#include <gui/ISurfaceComposerClient.h>
20#include <gui/IGraphicBufferProducer.h>
21#include <private/gui/LayerState.h>
22
23namespace android {
24
25status_t layer_state_t::write(Parcel& output) const
26{
27    output.writeStrongBinder(surface);
28    output.writeUint32(what);
29    output.writeFloat(x);
30    output.writeFloat(y);
31    output.writeInt32(z);
32    output.writeUint32(w);
33    output.writeUint32(h);
34    output.writeUint32(layerStack);
35    output.writeFloat(alpha);
36    output.writeUint32(flags);
37    output.writeUint32(mask);
38    *reinterpret_cast<layer_state_t::matrix22_t *>(
39            output.writeInplace(sizeof(layer_state_t::matrix22_t))) = matrix;
40    output.write(crop);
41    output.write(finalCrop);
42    output.writeStrongBinder(barrierHandle);
43    output.writeStrongBinder(reparentHandle);
44    output.writeUint64(frameNumber);
45    output.writeInt32(overrideScalingMode);
46    output.writeStrongBinder(IInterface::asBinder(barrierGbp));
47    output.writeStrongBinder(relativeLayerHandle);
48    output.writeStrongBinder(parentHandleForChild);
49    output.writeStrongBinder(childHandle);
50    output.write(transparentRegion);
51    return NO_ERROR;
52}
53
54status_t layer_state_t::read(const Parcel& input)
55{
56    surface = input.readStrongBinder();
57    what = input.readUint32();
58    x = input.readFloat();
59    y = input.readFloat();
60    z = input.readInt32();
61    w = input.readUint32();
62    h = input.readUint32();
63    layerStack = input.readUint32();
64    alpha = input.readFloat();
65    flags = static_cast<uint8_t>(input.readUint32());
66    mask = static_cast<uint8_t>(input.readUint32());
67    const void* matrix_data = input.readInplace(sizeof(layer_state_t::matrix22_t));
68    if (matrix_data) {
69        matrix = *reinterpret_cast<layer_state_t::matrix22_t const *>(matrix_data);
70    } else {
71        return BAD_VALUE;
72    }
73    input.read(crop);
74    input.read(finalCrop);
75    barrierHandle = input.readStrongBinder();
76    reparentHandle = input.readStrongBinder();
77    frameNumber = input.readUint64();
78    overrideScalingMode = input.readInt32();
79    barrierGbp =
80        interface_cast<IGraphicBufferProducer>(input.readStrongBinder());
81    relativeLayerHandle = input.readStrongBinder();
82    parentHandleForChild = input.readStrongBinder();
83    childHandle = input.readStrongBinder();
84    input.read(transparentRegion);
85    return NO_ERROR;
86}
87
88status_t ComposerState::write(Parcel& output) const {
89    output.writeStrongBinder(IInterface::asBinder(client));
90    return state.write(output);
91}
92
93status_t ComposerState::read(const Parcel& input) {
94    client = interface_cast<ISurfaceComposerClient>(input.readStrongBinder());
95    return state.read(input);
96}
97
98
99DisplayState::DisplayState() :
100    what(0),
101    layerStack(0),
102    orientation(eOrientationDefault),
103    viewport(Rect::EMPTY_RECT),
104    frame(Rect::EMPTY_RECT),
105    width(0),
106    height(0) {
107}
108
109status_t DisplayState::write(Parcel& output) const {
110    output.writeStrongBinder(token);
111    output.writeStrongBinder(IInterface::asBinder(surface));
112    output.writeUint32(what);
113    output.writeUint32(layerStack);
114    output.writeUint32(orientation);
115    output.write(viewport);
116    output.write(frame);
117    output.writeUint32(width);
118    output.writeUint32(height);
119    return NO_ERROR;
120}
121
122status_t DisplayState::read(const Parcel& input) {
123    token = input.readStrongBinder();
124    surface = interface_cast<IGraphicBufferProducer>(input.readStrongBinder());
125    what = input.readUint32();
126    layerStack = input.readUint32();
127    orientation = input.readUint32();
128    input.read(viewport);
129    input.read(frame);
130    width = input.readUint32();
131    height = input.readUint32();
132    return NO_ERROR;
133}
134
135
136}; // namespace android
137