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      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_SF_ISURFACE_COMPOSER_CLIENT_H
     18 #define ANDROID_SF_ISURFACE_COMPOSER_CLIENT_H
     19 
     20 #include <stdint.h>
     21 #include <sys/types.h>
     22 
     23 #include <utils/Errors.h>
     24 #include <utils/RefBase.h>
     25 
     26 #include <binder/IInterface.h>
     27 
     28 #include <ui/PixelFormat.h>
     29 
     30 #include <surfaceflinger/ISurface.h>
     31 
     32 namespace android {
     33 
     34 // ----------------------------------------------------------------------------
     35 
     36 class IMemoryHeap;
     37 
     38 typedef int32_t    ClientID;
     39 typedef int32_t    DisplayID;
     40 
     41 // ----------------------------------------------------------------------------
     42 
     43 class layer_state_t;
     44 
     45 class ISurfaceComposerClient : public IInterface
     46 {
     47 public:
     48     DECLARE_META_INTERFACE(SurfaceComposerClient);
     49 
     50     struct surface_data_t {
     51         int32_t             token;
     52         int32_t             identity;
     53         uint32_t            width;
     54         uint32_t            height;
     55         uint32_t            format;
     56         status_t readFromParcel(const Parcel& parcel);
     57         status_t writeToParcel(Parcel* parcel) const;
     58     };
     59 
     60     virtual sp<IMemoryHeap> getControlBlock() const = 0;
     61     virtual ssize_t getTokenForSurface(const sp<ISurface>& sur) const = 0;
     62 
     63     /*
     64      * Requires ACCESS_SURFACE_FLINGER permission
     65      */
     66     virtual sp<ISurface> createSurface( surface_data_t* data,
     67                                         int pid,
     68                                         const String8& name,
     69                                         DisplayID display,
     70                                         uint32_t w,
     71                                         uint32_t h,
     72                                         PixelFormat format,
     73                                         uint32_t flags) = 0;
     74 
     75     /*
     76      * Requires ACCESS_SURFACE_FLINGER permission
     77      */
     78     virtual status_t    destroySurface(SurfaceID sid) = 0;
     79 
     80     /*
     81      * Requires ACCESS_SURFACE_FLINGER permission
     82      */
     83     virtual status_t    setState(int32_t count, const layer_state_t* states) = 0;
     84 };
     85 
     86 // ----------------------------------------------------------------------------
     87 
     88 class BnSurfaceComposerClient : public BnInterface<ISurfaceComposerClient>
     89 {
     90 public:
     91     virtual status_t    onTransact( uint32_t code,
     92                                     const Parcel& data,
     93                                     Parcel* reply,
     94                                     uint32_t flags = 0);
     95 };
     96 
     97 // ----------------------------------------------------------------------------
     98 
     99 }; // namespace android
    100 
    101 #endif // ANDROID_SF_ISURFACE_COMPOSER_CLIENT_H
    102