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- /* SPDX-License-Identifier: LGPL-2.1 OR BSD-3-Clause */
- /*
- * Copyright (c) 2018, Chips&Media
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- * 2. 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 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 __CNM_VIDEO_MEMORY_MANAGEMENT_H__
- #define __CNM_VIDEO_MEMORY_MANAGEMENT_H__
- typedef struct _jmem_info_struct {
- unsigned long total_pages;
- unsigned long alloc_pages;
- unsigned long free_pages;
- unsigned long page_size;
- } jmem_info_t;
- #if defined(WIN32) || defined(WIN64)
- #if (_MSC_VER == 1200)
- typedef _int64 vmem_key_t;
- #else
- typedef unsigned long long vmem_key_t;
- #endif
- #else
- typedef unsigned long long vmem_key_t;
- #endif
- #define VMEM_PAGE_SIZE (16*1024UL)
- #define MAKE_KEY(_a, _b) (((vmem_key_t)_a)<<32 | _b)
- #define KEY_TO_VALUE(_key) (_key>>32)
- typedef struct page_struct {
- int pageno;
- unsigned long addr;
- int used;
- int alloc_pages;
- int first_pageno;
- } page_t;
- typedef struct avl_node_struct {
- vmem_key_t key;
- int height;
- page_t* page;
- struct avl_node_struct* left;
- struct avl_node_struct* right;
- } avl_node_t;
- typedef struct _jpeg_mm_struct {
- avl_node_t* free_tree;
- avl_node_t* alloc_tree;
- page_t* page_list;
- int num_pages;
- unsigned long base_addr;
- unsigned long mem_size;
- void* mutex;
- int free_page_count;
- int alloc_page_count;
- } jpeg_mm_t;
- #if defined (__cplusplus)
- extern "C" {
- #endif
- extern int
- jmem_init(
- jpeg_mm_t* mm,
- unsigned long addr,
- unsigned long size
- );
- extern int
- jmem_exit(
- jpeg_mm_t* mm
- );
- extern unsigned long
- jmem_alloc(
- jpeg_mm_t* mm,
- int size,
- unsigned long pid
- );
- extern int
- jmem_free(
- jpeg_mm_t* mm,
- unsigned long ptr,
- unsigned long pid
- );
- extern int
- jmem_get_info(
- jpeg_mm_t* mm,
- jmem_info_t* info
- );
- #if defined (__cplusplus)
- }
- #endif
- #endif /* __CNM_VIDEO_MEMORY_MANAGEMENT_H__ */
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