SurfaceControl.h revision d85084b2b65828442eafaff9b811e9b6c9ca9fad 
1/*
2 * Copyright (C) 2007 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_GUI_SURFACE_CONTROL_H
18#define ANDROID_GUI_SURFACE_CONTROL_H
19
20#include <stdint.h>
21#include <sys/types.h>
22
23#include <utils/KeyedVector.h>
24#include <utils/RefBase.h>
25#include <utils/threads.h>
26
27#include <ui/FrameStats.h>
28#include <ui/PixelFormat.h>
29#include <ui/Region.h>
30
31#include <gui/ISurfaceComposerClient.h>
32
33namespace android {
34
35// ---------------------------------------------------------------------------
36
37class IGraphicBufferProducer;
38class Surface;
39class SurfaceComposerClient;
40
41// ---------------------------------------------------------------------------
42
43class SurfaceControl : public RefBase
44{
45public:
46    static bool isValid(const sp<SurfaceControl>& surface) {
47        return (surface != 0) && surface->isValid();
48    }
49
50    bool isValid() {
51        return mHandle!=0 && mClient!=0;
52    }
53
54    static bool isSameSurface(
55            const sp<SurfaceControl>& lhs, const sp<SurfaceControl>& rhs);
56
57    // release surface data from java
58    void        clear();
59
60    status_t    setLayerStack(int32_t layerStack);
61    status_t    setLayer(int32_t layer);
62    status_t    setPosition(float x, float y);
63    status_t    setSize(uint32_t w, uint32_t h);
64    status_t    hide();
65    status_t    show();
66    status_t    setFlags(uint32_t flags, uint32_t mask);
67    status_t    setTransparentRegionHint(const Region& transparent);
68    status_t    setAlpha(float alpha=1.0f);
69    status_t    setMatrix(float dsdx, float dtdx, float dsdy, float dtdy);
70    status_t    setCrop(const Rect& crop);
71
72    static status_t writeSurfaceToParcel(
73            const sp<SurfaceControl>& control, Parcel* parcel);
74
75    sp<Surface> getSurface() const;
76
77    status_t clearLayerFrameStats() const;
78    status_t getLayerFrameStats(FrameStats* outStats) const;
79
80private:
81    // can't be copied
82    SurfaceControl& operator = (SurfaceControl& rhs);
83    SurfaceControl(const SurfaceControl& rhs);
84
85    friend class SurfaceComposerClient;
86    friend class Surface;
87
88    SurfaceControl(
89            const sp<SurfaceComposerClient>& client,
90            const sp<IBinder>& handle,
91            const sp<IGraphicBufferProducer>& gbp);
92
93    ~SurfaceControl();
94
95    status_t validate() const;
96    void destroy();
97
98    sp<SurfaceComposerClient>   mClient;
99    sp<IBinder>                 mHandle;
100    sp<IGraphicBufferProducer>  mGraphicBufferProducer;
101    mutable Mutex               mLock;
102    mutable sp<Surface>         mSurfaceData;
103};
104
105}; // namespace android
106
107#endif // ANDROID_GUI_SURFACE_CONTROL_H
108