diff options
Diffstat (limited to 'src/mesa/drivers/dri/common/mm.c')
| -rw-r--r-- | src/mesa/drivers/dri/common/mm.c | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/src/mesa/drivers/dri/common/mm.c b/src/mesa/drivers/dri/common/mm.c deleted file mode 100644 index 5781d9936c2..00000000000 --- a/src/mesa/drivers/dri/common/mm.c +++ /dev/null @@ -1,196 +0,0 @@ -/* - * GLX Hardware Device Driver common code - * Copyright (C) 1999 Wittawat Yamwong - * - * 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 - * WITTAWAT YAMWONG, 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. - * - */ -/* $XFree86: xc/lib/GL/mesa/src/drv/common/mm.c,v 1.4 2002/10/30 12:51:27 alanh Exp $ */ - -#include <stdlib.h> -#include <stdio.h> - -#include "mm.h" - - -void mmDumpMemInfo( memHeap_t *heap ) -{ - TMemBlock *p; - - fprintf(stderr, "Memory heap %p:\n", (void *)heap); - if (heap == 0) { - fprintf(stderr, " heap == 0\n"); - } else { - p = (TMemBlock *)heap; - while (p) { - fprintf(stderr, " Offset:%08x, Size:%08x, %c%c\n",p->ofs,p->size, - p->free ? '.':'U', - p->reserved ? 'R':'.'); - p = p->next; - } - } - fprintf(stderr, "End of memory blocks\n"); -} - -memHeap_t *mmInit(int ofs, - int size) -{ - PMemBlock blocks; - - if (size <= 0) { - return NULL; - } - blocks = (TMemBlock *) calloc(1,sizeof(TMemBlock)); - if (blocks) { - blocks->ofs = ofs; - blocks->size = size; - blocks->free = 1; - return (memHeap_t *)blocks; - } else - return NULL; -} - - -static TMemBlock* SliceBlock(TMemBlock *p, - int startofs, int size, - int reserved, int alignment) -{ - TMemBlock *newblock; - - /* break left */ - if (startofs > p->ofs) { - newblock = (TMemBlock*) calloc(1,sizeof(TMemBlock)); - if (!newblock) - return NULL; - newblock->ofs = startofs; - newblock->size = p->size - (startofs - p->ofs); - newblock->free = 1; - newblock->next = p->next; - p->size -= newblock->size; - p->next = newblock; - p = newblock; - } - - /* break right */ - if (size < p->size) { - newblock = (TMemBlock*) calloc(1,sizeof(TMemBlock)); - if (!newblock) - return NULL; - newblock->ofs = startofs + size; - newblock->size = p->size - size; - newblock->free = 1; - newblock->next = p->next; - p->size = size; - p->next = newblock; - } - - /* p = middle block */ - p->align = alignment; - p->free = 0; - p->reserved = reserved; - return p; -} - -PMemBlock mmAllocMem( memHeap_t *heap, int size, int align2, int startSearch) -{ - int mask,startofs,endofs; - TMemBlock *p; - - if (!heap || align2 < 0 || size <= 0) - return NULL; - mask = (1 << align2)-1; - startofs = 0; - p = (TMemBlock *)heap; - while (p) { - if ((p)->free) { - startofs = (p->ofs + mask) & ~mask; - if ( startofs < startSearch ) { - startofs = startSearch; - } - endofs = startofs+size; - if (endofs <= (p->ofs+p->size)) - break; - } - p = p->next; - } - if (!p) - return NULL; - p = SliceBlock(p,startofs,size,0,mask+1); - p->heap = heap; - return p; -} - -static __inline__ int Join2Blocks(TMemBlock *p) -{ - if (p->free && p->next && p->next->free) { - TMemBlock *q = p->next; - p->size += q->size; - p->next = q->next; - free(q); - return 1; - } - return 0; -} - -int mmFreeMem(PMemBlock b) -{ - TMemBlock *p,*prev; - - if (!b) - return 0; - if (!b->heap) { - fprintf(stderr, "no heap\n"); - return -1; - } - p = b->heap; - prev = NULL; - while (p && p != b) { - prev = p; - p = p->next; - } - if (!p || p->free || p->reserved) { - if (!p) - fprintf(stderr, "block not found in heap\n"); - else if (p->free) - fprintf(stderr, "block already free\n"); - else - fprintf(stderr, "block is reserved\n"); - return -1; - } - p->free = 1; - Join2Blocks(p); - if (prev) - Join2Blocks(prev); - return 0; -} - - -void mmDestroy(memHeap_t *heap) -{ - TMemBlock *p,*q; - - if (!heap) - return; - p = (TMemBlock *)heap; - while (p) { - q = p->next; - free(p); - p = q; - } -} |