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      1 /*
      2  * Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
      3 
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *   * Redistributions of source code must retain the above copyright
      8  *     notice, this list of conditions and the following disclaimer.
      9  *   * Redistributions in binary form must reproduce the above
     10  *     copyright notice, this list of conditions and the following
     11  *     disclaimer in the documentation and/or other materials provided
     12  *     with the distribution.
     13  *   * Neither the name of The Linux Foundation nor the names of its
     14  *     contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
     18  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
     20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
     21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     24  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     25  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     26  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 #ifndef GRALLOC_ALLOCCONTROLLER_H
     30 #define GRALLOC_ALLOCCONTROLLER_H
     31 
     32 #define SZ_2M 0x200000
     33 #define SZ_1M 0x100000
     34 #define SZ_4K 0x1000
     35 
     36 /* TODO: Move this to the common makefile */
     37 #ifdef MASTER_SIDE_CP
     38 #define SECURE_ALIGN SZ_4K
     39 #else
     40 #define SECURE_ALIGN SZ_1M
     41 #endif
     42 
     43 namespace gralloc {
     44 
     45 struct alloc_data;
     46 class IMemAlloc;
     47 class IonAlloc;
     48 
     49 class IAllocController {
     50 
     51     public:
     52     /* Allocate using a suitable method
     53      * Returns the type of buffer allocated
     54      */
     55     virtual int allocate(alloc_data& data, int usage) = 0;
     56 
     57     virtual IMemAlloc* getAllocator(int flags) = 0;
     58 
     59     virtual bool isDisableUBWCForEncoder() = 0;
     60 
     61     virtual ~IAllocController() {};
     62 
     63     static IAllocController* getInstance(void);
     64 
     65     private:
     66     static IAllocController* sController;
     67 
     68 };
     69 
     70 class IonController : public IAllocController {
     71 
     72     public:
     73     virtual int allocate(alloc_data& data, int usage);
     74 
     75     virtual IMemAlloc* getAllocator(int flags);
     76 
     77     virtual bool isDisableUBWCForEncoder() {
     78         return mDisableUBWCForEncode;
     79     }
     80 
     81     IonController();
     82 
     83     private:
     84     IonAlloc* mIonAlloc;
     85     bool mDisableUBWCForEncode;
     86     void allocateIonMem();
     87 
     88 };
     89 } //end namespace gralloc
     90 #endif // GRALLOC_ALLOCCONTROLLER_H
     91