android_hardware_qcom_display/libgralloc/alloc_controller.h
Andrew Sutherland e25f40c946 bring back pmem/ashmem allocators
o removed RefBase usages
o ifdef for TARGET_USES_ION

Change-Id: Ief331f4c847b86be0e37d24983097af1f53234a2
2012-08-02 23:16:45 -05:00

111 lines
3.1 KiB
C++

/*
* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Code Aurora Forum, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef GRALLOC_ALLOCCONTROLLER_H
#define GRALLOC_ALLOCCONTROLLER_H
namespace gralloc {
struct alloc_data;
class IMemAlloc;
class IonAlloc;
class IAllocController {
public:
/* Allocate using a suitable method
* Returns the type of buffer allocated
*/
virtual int allocate(alloc_data& data, int usage) = 0;
virtual IMemAlloc* getAllocator(int flags) = 0;
virtual ~IAllocController() {};
static IAllocController* getInstance(bool useMasterHeap);
private:
static IAllocController* sController;
};
#ifdef USE_ION
class IonController : public IAllocController {
public:
virtual int allocate(alloc_data& data, int usage);
virtual IMemAlloc* getAllocator(int flags);
IonController();
private:
IonAlloc* mIonAlloc;
};
#else
class PmemKernelController : public IAllocController {
public:
virtual int allocate(alloc_data& data, int usage);
virtual IMemAlloc* getAllocator(int flags);
PmemKernelController ();
~PmemKernelController ();
private:
IMemAlloc* mPmemAdspAlloc;
};
// Main pmem controller - this should only
// be used within gralloc
class PmemAshmemController : public IAllocController {
public:
virtual int allocate(alloc_data& data, int usage);
virtual IMemAlloc* getAllocator(int flags);
PmemAshmemController();
~PmemAshmemController();
private:
IMemAlloc* mPmemUserspaceAlloc;
IMemAlloc* mAshmemAlloc;
IAllocController* mPmemKernelCtrl;
};
#endif
} //end namespace gralloc
#endif // GRALLOC_ALLOCCONTROLLER_H