/* 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__ */