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/* sis_ds.h -- Private header for Direct Rendering Manager -*- linux-c -*-
* Created: Mon Jan 4 10:05:05 1999 by sclin@sis.com.tw
*
* Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Sung-Ching Lin <sclin@sis.com.tw>
*
*/
#ifndef __SIS_DS_H__
#define __SIS_DS_H__
/* Set Data Structure */
#define SET_SIZE 5000
typedef unsigned int ITEM_TYPE;
typedef struct {
ITEM_TYPE val;
int alloc_next, free_next;
} list_item_t;
typedef struct {
int alloc;
int free;
int trace;
list_item_t list[SET_SIZE];
} set_t;
set_t *setInit(void);
int setAdd(set_t *set, ITEM_TYPE item);
int setDel(set_t *set, ITEM_TYPE item);
int setFirst(set_t *set, ITEM_TYPE *item);
int setNext(set_t *set, ITEM_TYPE *item);
int setDestroy(set_t *set);
/*
* GLX Hardware Device Driver common code
* Copyright (C) 1999 Keith Whitwell
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
struct mem_block_t {
struct mem_block_t *next;
struct mem_block_t *heap;
int ofs,size;
int align;
int free:1;
int reserved:1;
};
typedef struct mem_block_t TMemBlock;
typedef struct mem_block_t *PMemBlock;
/* a heap is just the first block in a chain */
typedef struct mem_block_t memHeap_t;
static __inline__ int mmBlockSize(PMemBlock b)
{
return b->size;
}
static __inline__ int mmOffset(PMemBlock b)
{
return b->ofs;
}
static __inline__ void mmMarkReserved(PMemBlock b)
{
b->reserved = 1;
}
/*
* input: total size in bytes
* return: a heap pointer if OK, NULL if error
*/
memHeap_t *mmInit( int ofs, int size );
memHeap_t *mmAddRange( memHeap_t *heap,
int ofs,
int size );
/*
* Allocate 'size' bytes with 2^align2 bytes alignment,
* restrict the search to free memory after 'startSearch'
* depth and back buffers should be in different 4mb banks
* to get better page hits if possible
* input: size = size of block
* align2 = 2^align2 bytes alignment
* startSearch = linear offset from start of heap to begin search
* return: pointer to the allocated block, 0 if error
*/
PMemBlock mmAllocMem( memHeap_t *heap, int size, int align2, int startSearch );
/*
* Returns 1 if the block 'b' is part of the heap 'heap'
*/
int mmBlockInHeap( PMemBlock heap, PMemBlock b );
/*
* Free block starts at offset
* input: pointer to a block
* return: 0 if OK, -1 if error
*/
int mmFreeMem( PMemBlock b );
/*
* Reserve 'size' bytes block start at offset
* This is used to prevent allocation of memory already used
* by the X server for the front buffer, pixmaps, and cursor
* input: size, offset
* output: 0 if OK, -1 if error
*/
int mmReserveMem( memHeap_t *heap, int offset,int size );
int mmFreeReserved( memHeap_t *heap, int offset );
/*
* destroy MM
*/
void mmDestroy( memHeap_t *mmInit );
/* For debuging purpose. */
void mmDumpMemInfo( memHeap_t *mmInit );
#endif /* __SIS_DS_H__ */
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