LayerState.cpp revision 0d48072f6047140119ff194c1194ce402fca2c0b 
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.write(transparentRegion);
48    return NO_ERROR;
49}
50
51status_t layer_state_t::read(const Parcel& input)
52{
53    surface = input.readStrongBinder();
54    what = input.readUint32();
55    x = input.readFloat();
56    y = input.readFloat();
57    z = input.readInt32();
58    w = input.readUint32();
59    h = input.readUint32();
60    layerStack = input.readUint32();
61    alpha = input.readFloat();
62    flags = static_cast<uint8_t>(input.readUint32());
63    mask = static_cast<uint8_t>(input.readUint32());
64    const void* matrix_data = input.readInplace(sizeof(layer_state_t::matrix22_t));
65    if (matrix_data) {
66        matrix = *reinterpret_cast<layer_state_t::matrix22_t const *>(matrix_data);
67    } else {
68        return BAD_VALUE;
69    }
70    input.read(crop);
71    input.read(finalCrop);
72    barrierHandle = input.readStrongBinder();
73    reparentHandle = input.readStrongBinder();
74    frameNumber = input.readUint64();
75    overrideScalingMode = input.readInt32();
76    barrierGbp =
77        interface_cast<IGraphicBufferProducer>(input.readStrongBinder());
78    input.read(transparentRegion);
79    return NO_ERROR;
80}
81
82status_t ComposerState::write(Parcel& output) const {
83    output.writeStrongBinder(IInterface::asBinder(client));
84    return state.write(output);
85}
86
87status_t ComposerState::read(const Parcel& input) {
88    client = interface_cast<ISurfaceComposerClient>(input.readStrongBinder());
89    return state.read(input);
90}
91
92
93DisplayState::DisplayState() :
94    what(0),
95    layerStack(0),
96    orientation(eOrientationDefault),
97    viewport(Rect::EMPTY_RECT),
98    frame(Rect::EMPTY_RECT),
99    width(0),
100    height(0) {
101}
102
103status_t DisplayState::write(Parcel& output) const {
104    output.writeStrongBinder(token);
105    output.writeStrongBinder(IInterface::asBinder(surface));
106    output.writeUint32(what);
107    output.writeUint32(layerStack);
108    output.writeUint32(orientation);
109    output.write(viewport);
110    output.write(frame);
111    output.writeUint32(width);
112    output.writeUint32(height);
113    return NO_ERROR;
114}
115
116status_t DisplayState::read(const Parcel& input) {
117    token = input.readStrongBinder();
118    surface = interface_cast<IGraphicBufferProducer>(input.readStrongBinder());
119    what = input.readUint32();
120    layerStack = input.readUint32();
121    orientation = input.readUint32();
122    input.read(viewport);
123    input.read(frame);
124    width = input.readUint32();
125    height = input.readUint32();
126    return NO_ERROR;
127}
128
129
130}; // namespace android
131