1/*
2 * Copyright (C) 2006 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_ISURFACE_COMPOSER_H
18#define ANDROID_ISURFACE_COMPOSER_H
19
20#include <stdint.h>
21#include <sys/types.h>
22
23#include <utils/RefBase.h>
24#include <utils/Errors.h>
25#include <binder/IInterface.h>
26
27#include <ui/PixelFormat.h>
28#include <ui/ISurfaceFlingerClient.h>
29
30namespace android {
31
32// ----------------------------------------------------------------------------
33
34class DisplayInfo;
35
36class ISurfaceComposer : public IInterface
37{
38public:
39    DECLARE_META_INTERFACE(SurfaceComposer);
40
41    enum { // (keep in sync with Surface.java)
42        eHidden             = 0x00000004,
43        eDestroyBackbuffer  = 0x00000020,
44        eSecure             = 0x00000080,
45        eNonPremultiplied   = 0x00000100,
46        ePushBuffers        = 0x00000200,
47
48        eFXSurfaceNormal    = 0x00000000,
49        eFXSurfaceBlur      = 0x00010000,
50        eFXSurfaceDim       = 0x00020000,
51        eFXSurfaceMask      = 0x000F0000,
52    };
53
54    enum {
55        ePositionChanged            = 0x00000001,
56        eLayerChanged               = 0x00000002,
57        eSizeChanged                = 0x00000004,
58        eAlphaChanged               = 0x00000008,
59        eMatrixChanged              = 0x00000010,
60        eTransparentRegionChanged   = 0x00000020,
61        eVisibilityChanged          = 0x00000040,
62        eFreezeTintChanged          = 0x00000080,
63    };
64
65    enum {
66        eLayerHidden        = 0x01,
67        eLayerFrozen        = 0x02,
68        eLayerDither        = 0x04,
69        eLayerFilter        = 0x08,
70        eLayerBlurFreeze    = 0x10
71    };
72
73    enum {
74        eOrientationDefault     = 0,
75        eOrientation90          = 1,
76        eOrientation180         = 2,
77        eOrientation270         = 3,
78        eOrientationSwapMask    = 0x01
79    };
80
81    // flags for setOrientation
82    enum {
83        eOrientationAnimationDisable = 0x00000001
84    };
85
86    /* create connection with surface flinger, requires
87     * ACCESS_SURFACE_FLINGER permission
88     */
89
90    virtual sp<ISurfaceFlingerClient> createConnection() = 0;
91
92    /* retrieve the control block */
93    virtual sp<IMemoryHeap> getCblk() const = 0;
94
95    /* open/close transactions. recquires ACCESS_SURFACE_FLINGER permission */
96    virtual void openGlobalTransaction() = 0;
97    virtual void closeGlobalTransaction() = 0;
98
99    /* [un]freeze display. recquires ACCESS_SURFACE_FLINGER permission */
100    virtual status_t freezeDisplay(DisplayID dpy, uint32_t flags) = 0;
101    virtual status_t unfreezeDisplay(DisplayID dpy, uint32_t flags) = 0;
102
103    /* Set display orientation. recquires ACCESS_SURFACE_FLINGER permission */
104    virtual int setOrientation(DisplayID dpy, int orientation, uint32_t flags) = 0;
105
106    /* signal that we're done booting.
107     * recquires ACCESS_SURFACE_FLINGER permission
108     */
109    virtual void bootFinished() = 0;
110
111    /* Signal surfaceflinger that there might be some work to do
112     * This is an ASYNCHRONOUS call.
113     */
114    virtual void signal() const = 0;
115};
116
117// ----------------------------------------------------------------------------
118
119class BnSurfaceComposer : public BnInterface<ISurfaceComposer>
120{
121public:
122    enum {
123        // Note: BOOT_FINISHED must remain this value, it is called from
124        // Java by ActivityManagerService.
125        BOOT_FINISHED = IBinder::FIRST_CALL_TRANSACTION,
126        CREATE_CONNECTION,
127        GET_CBLK,
128        OPEN_GLOBAL_TRANSACTION,
129        CLOSE_GLOBAL_TRANSACTION,
130        SET_ORIENTATION,
131        FREEZE_DISPLAY,
132        UNFREEZE_DISPLAY,
133        SIGNAL
134    };
135
136    virtual status_t    onTransact( uint32_t code,
137                                    const Parcel& data,
138                                    Parcel* reply,
139                                    uint32_t flags = 0);
140};
141
142// ----------------------------------------------------------------------------
143
144}; // namespace android
145
146#endif // ANDROID_ISURFACE_COMPOSER_H
147