LayerState.cpp revision 6cf6af0299f7e48bc5bcdcd6a6c0f5a8725e9411 
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.writeUint32(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(handle);
43    output.writeUint64(frameNumber);
44    output.writeInt32(overrideScalingMode);
45    output.writeUint32(type);
46    output.writeUint32(appid);
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.readUint32();
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    handle = input.readStrongBinder();
73    frameNumber = input.readUint64();
74    overrideScalingMode = input.readInt32();
75    type = input.readUint32();
76    appid = input.readUint32();
77    input.read(transparentRegion);
78    return NO_ERROR;
79}
80
81status_t ComposerState::write(Parcel& output) const {
82    output.writeStrongBinder(IInterface::asBinder(client));
83    return state.write(output);
84}
85
86status_t ComposerState::read(const Parcel& input) {
87    client = interface_cast<ISurfaceComposerClient>(input.readStrongBinder());
88    return state.read(input);
89}
90
91
92DisplayState::DisplayState() :
93    what(0),
94    layerStack(0),
95    orientation(eOrientationDefault),
96    viewport(Rect::EMPTY_RECT),
97    frame(Rect::EMPTY_RECT),
98    width(0),
99    height(0) {
100}
101
102status_t DisplayState::write(Parcel& output) const {
103    output.writeStrongBinder(token);
104    output.writeStrongBinder(IInterface::asBinder(surface));
105    output.writeUint32(what);
106    output.writeUint32(layerStack);
107    output.writeUint32(orientation);
108    output.write(viewport);
109    output.write(frame);
110    output.writeUint32(width);
111    output.writeUint32(height);
112    return NO_ERROR;
113}
114
115status_t DisplayState::read(const Parcel& input) {
116    token = input.readStrongBinder();
117    surface = interface_cast<IGraphicBufferProducer>(input.readStrongBinder());
118    what = input.readUint32();
119    layerStack = input.readUint32();
120    orientation = input.readUint32();
121    input.read(viewport);
122    input.read(frame);
123    width = input.readUint32();
124    height = input.readUint32();
125    return NO_ERROR;
126}
127
128
129}; // namespace android
130