diff options
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_mm.h')
-rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_mm.h | 182 |
1 files changed, 91 insertions, 91 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_mm.h b/mesalib/src/gallium/auxiliary/util/u_mm.h index 3818181db..6b158aae6 100644 --- a/mesalib/src/gallium/auxiliary/util/u_mm.h +++ b/mesalib/src/gallium/auxiliary/util/u_mm.h @@ -1,91 +1,91 @@ -/**************************************************************************
- *
- * 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
- * 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.
- *
- **************************************************************************/
-
-
-/**
- * @file
- * Memory manager code. Primarily used by device drivers to manage texture
- * heaps, etc.
- */
-
-
-#ifndef _U_MM_H_
-#define _U_MM_H_
-
-
-struct mem_block {
- struct mem_block *next, *prev;
- struct mem_block *next_free, *prev_free;
- struct mem_block *heap;
- int ofs,size;
- unsigned int free:1;
- unsigned int reserved:1;
-};
-
-
-
-/**
- * input: total size in bytes
- * return: a heap pointer if OK, NULL if error
- */
-extern struct mem_block *u_mmInit(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
- */
-extern struct mem_block *u_mmAllocMem(struct mem_block *heap, int size, int align2,
- int startSearch);
-
-/**
- * Free block starts at offset
- * input: pointer to a block
- * return: 0 if OK, -1 if error
- */
-extern int u_mmFreeMem(struct mem_block *b);
-
-/**
- * Free block starts at offset
- * input: pointer to a heap, start offset
- * return: pointer to a block
- */
-extern struct mem_block *u_mmFindBlock(struct mem_block *heap, int start);
-
-/**
- * destroy MM
- */
-extern void u_mmDestroy(struct mem_block *mmInit);
-
-/**
- * For debugging purposes.
- */
-extern void u_mmDumpMemInfo(const struct mem_block *mmInit);
-
-#endif
+/************************************************************************** + * + * 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 + * 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. + * + **************************************************************************/ + + +/** + * @file + * Memory manager code. Primarily used by device drivers to manage texture + * heaps, etc. + */ + + +#ifndef _U_MM_H_ +#define _U_MM_H_ + + +struct mem_block { + struct mem_block *next, *prev; + struct mem_block *next_free, *prev_free; + struct mem_block *heap; + int ofs,size; + unsigned int free:1; + unsigned int reserved:1; +}; + + + +/** + * input: total size in bytes + * return: a heap pointer if OK, NULL if error + */ +extern struct mem_block *u_mmInit(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 + */ +extern struct mem_block *u_mmAllocMem(struct mem_block *heap, int size, int align2, + int startSearch); + +/** + * Free block starts at offset + * input: pointer to a block + * return: 0 if OK, -1 if error + */ +extern int u_mmFreeMem(struct mem_block *b); + +/** + * Free block starts at offset + * input: pointer to a heap, start offset + * return: pointer to a block + */ +extern struct mem_block *u_mmFindBlock(struct mem_block *heap, int start); + +/** + * destroy MM + */ +extern void u_mmDestroy(struct mem_block *mmInit); + +/** + * For debugging purposes. + */ +extern void u_mmDumpMemInfo(const struct mem_block *mmInit); + +#endif |