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/*
* Copyright (c) 2011-2014, The Linux Foundation. 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 The Linux Foundation 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_MEMALLOC_H
#define GRALLOC_MEMALLOC_H
#include <stdlib.h>
namespace gralloc {
enum {
CACHE_CLEAN = 0x1,
CACHE_INVALIDATE,
CACHE_CLEAN_AND_INVALIDATE,
};
struct alloc_data {
void *base;
int fd;
unsigned int offset;
unsigned int size;
unsigned int align;
uintptr_t pHandle;
bool uncached;
unsigned int flags;
int allocType;
};
class IMemAlloc {
public:
// Allocate buffer - fill in the alloc_data
// structure and pass it in. Mapped address
// and fd are returned in the alloc_data struct
virtual int alloc_buffer(alloc_data& data) = 0;
// Free buffer
virtual int free_buffer(void *base, unsigned int size,
unsigned int offset, int fd) = 0;
// Map buffer
virtual int map_buffer(void **pBase, unsigned int size,
unsigned int offset, int fd) = 0;
// Unmap buffer
virtual int unmap_buffer(void *base, unsigned int size,
unsigned int offset) = 0;
// Clean and invalidate
virtual int clean_buffer(void *base, unsigned int size,
unsigned int offset, int fd, int op) = 0;
// Destructor
virtual ~IMemAlloc() {};
enum {
FD_INIT = -1,
};
};
} // end gralloc namespace
#endif // GRALLOC_MEMALLOC_H
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