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90 lines
2.9 KiB
90 lines
2.9 KiB
/*
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* Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef GRALLOC_MEMALLOC_H
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#define GRALLOC_MEMALLOC_H
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#include <stdlib.h>
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namespace gralloc {
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enum {
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CACHE_CLEAN = 0x1,
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CACHE_INVALIDATE,
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CACHE_CLEAN_AND_INVALIDATE,
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};
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struct alloc_data {
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void *base;
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int fd;
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size_t offset;
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size_t size;
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size_t align;
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uintptr_t pHandle;
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bool uncached;
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unsigned int flags;
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int allocType;
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};
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class IMemAlloc {
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public:
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// Allocate buffer - fill in the alloc_data
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// structure and pass it in. Mapped address
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// and fd are returned in the alloc_data struct
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virtual int alloc_buffer(alloc_data& data) = 0;
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// Free buffer
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virtual int free_buffer(void *base, size_t size,
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size_t offset, int fd) = 0;
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// Map buffer
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virtual int map_buffer(void **pBase, size_t size,
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size_t offset, int fd) = 0;
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// Unmap buffer
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virtual int unmap_buffer(void *base, size_t size,
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size_t offset) = 0;
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// Clean and invalidate
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virtual int clean_buffer(void *base, size_t size,
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size_t offset, int fd, int op) = 0;
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// Destructor
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virtual ~IMemAlloc() {};
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enum {
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FD_INIT = -1,
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};
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};
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} // end gralloc namespace
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#endif // GRALLOC_MEMALLOC_H
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