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