LayerState.h revision 4d9b822e2c18142e55fe2611aa6cd7dc7d4a62c6
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
28namespace android {
29
30class Parcel;
31class ISurfaceComposerClient;
32
33struct layer_state_t {
34
35
36    enum {
37        eLayerHidden        = 0x01,
38    };
39
40    enum {
41        ePositionChanged            = 0x00000001,
42        eLayerChanged               = 0x00000002,
43        eSizeChanged                = 0x00000004,
44        eAlphaChanged               = 0x00000008,
45        eMatrixChanged              = 0x00000010,
46        eTransparentRegionChanged   = 0x00000020,
47        eVisibilityChanged          = 0x00000040,
48        eLayerStackChanged          = 0x00000080,
49        eCropChanged                = 0x00000100,
50    };
51
52    layer_state_t()
53        :   what(0),
54            x(0), y(0), z(0), w(0), h(0), layerStack(0),
55            alpha(0), flags(0), mask(0),
56            reserved(0)
57    {
58        matrix.dsdx = matrix.dtdy = 1.0f;
59        matrix.dsdy = matrix.dtdx = 0.0f;
60        crop.makeInvalid();
61    }
62
63    status_t    write(Parcel& output) const;
64    status_t    read(const Parcel& input);
65
66            struct matrix22_t {
67                float   dsdx;
68                float   dtdx;
69                float   dsdy;
70                float   dtdy;
71            };
72            sp<IBinder>     surface;
73            uint32_t        what;
74            float           x;
75            float           y;
76            uint32_t        z;
77            uint32_t        w;
78            uint32_t        h;
79            uint32_t        layerStack;
80            float           alpha;
81            uint8_t         flags;
82            uint8_t         mask;
83            uint8_t         reserved;
84            matrix22_t      matrix;
85            Rect            crop;
86            // non POD must be last. see write/read
87            Region          transparentRegion;
88};
89
90struct ComposerState {
91    sp<ISurfaceComposerClient> client;
92    layer_state_t state;
93    status_t    write(Parcel& output) const;
94    status_t    read(const Parcel& input);
95};
96
97struct DisplayState {
98
99    enum {
100        eOrientationDefault     = 0,
101        eOrientation90          = 1,
102        eOrientation180         = 2,
103        eOrientation270         = 3,
104        eOrientationUnchanged   = 4,
105        eOrientationSwapMask    = 0x01
106    };
107
108    enum {
109        eSurfaceChanged             = 0x01,
110        eLayerStackChanged          = 0x02,
111        eDisplayProjectionChanged   = 0x04
112    };
113
114    uint32_t what;
115    sp<IBinder> token;
116    sp<IGraphicBufferProducer> surface;
117    uint32_t layerStack;
118    uint32_t orientation;
119    Rect viewport;
120    Rect frame;
121    status_t write(Parcel& output) const;
122    status_t read(const Parcel& input);
123};
124
125}; // namespace android
126
127#endif // ANDROID_SF_LAYER_STATE_H
128
129