LayerState.h revision 8b33f032327f8de0dcc0e6d0d43ed80f834b51f6
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#ifndef ANDROID_SF_LAYER_STATE_H
18#define ANDROID_SF_LAYER_STATE_H
19
20#include <stdint.h>
21#include <sys/types.h>
22
23#include <utils/Errors.h>
24
25#include <ui/Region.h>
26#include <ui/Rect.h>
27#include <gui/ISurface.h>
28
29namespace android {
30
31class Parcel;
32class ISurfaceComposerClient;
33
34struct layer_state_t {
35
36    layer_state_t()
37        :   surface(0), what(0),
38            x(0), y(0), z(0), w(0), h(0),
39            alpha(0), flags(0), mask(0),
40            reserved(0)
41    {
42        matrix.dsdx = matrix.dtdy = 1.0f;
43        matrix.dsdy = matrix.dtdx = 0.0f;
44        crop.makeInvalid();
45    }
46
47    status_t    write(Parcel& output) const;
48    status_t    read(const Parcel& input);
49
50            struct matrix22_t {
51                float   dsdx;
52                float   dtdx;
53                float   dsdy;
54                float   dtdy;
55            };
56            SurfaceID       surface;
57            uint32_t        what;
58            float           x;
59            float           y;
60            uint32_t        z;
61            uint32_t        w;
62            uint32_t        h;
63            float           alpha;
64            uint8_t         flags;
65            uint8_t         mask;
66            uint8_t         reserved;
67            matrix22_t      matrix;
68            Rect            crop;
69            // non POD must be last. see write/read
70            Region          transparentRegion;
71};
72
73struct ComposerState {
74    sp<ISurfaceComposerClient> client;
75    layer_state_t state;
76    status_t    write(Parcel& output) const;
77    status_t    read(const Parcel& input);
78};
79
80struct DisplayState {
81    int32_t             displayId;
82    sp<ISurfaceTexture> surface;
83    uint32_t            layerStack;
84    uint32_t            orientation;
85    Rect                viewport;
86    Rect                frame;
87    status_t    write(Parcel& output) const;
88    status_t    read(const Parcel& input);
89};
90
91}; // namespace android
92
93#endif // ANDROID_SF_LAYER_STATE_H
94
95