1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 12 #define __VPX_MEM_C__ 13 #include "vpx_mem.h" 14 #include <nitro.h> 15 #include "vpx_mem_intrnl.h" 16 17 // Allocate memory from the Arena specified by id. Align it to 18 // the value specified by align. 19 void *vpx_mem_nds_alloc(osarena_id id, osheap_handle handle, size_t size, size_t align) 20 { 21 void *addr, 22 * x = NULL; 23 24 addr = os_alloc_from_heap((osarena_id) id, handle, 25 size + align - 1 + ADDRESS_STORAGE_SIZE); 26 27 if (addr) 28 { 29 x = align_addr((unsigned char *)addr + ADDRESS_STORAGE_SIZE, (int)align); 30 31 // save the actual malloc address 32 ((size_t *)x)[-1] = (size_t)addr; 33 } 34 35 return x; 36 } 37 38 // Free them memory allocated by vpx_mem_nds_alloc 39 void vpx_mem_nds_free(osarena_id id, osheap_handle handle, void *mem) 40 { 41 if (mem) 42 { 43 void *addr = (void *)(((size_t *)mem)[-1]); 44 os_free_to_heap(id, handle, addr); 45 } 46 } 47 48 int vpx_nds_alloc_heap(osarena_id id, u32 size) 49 { 50 osheap_handle arena_handle; 51 void *nstart; 52 void *heap_start; 53 54 nstart = os_init_alloc(id, os_get_arena_lo(id), os_get_arena_hi(id), 1); 55 os_set_arena_lo(id, nstart); 56 57 heap_start = os_alloc_from_arena_lo(id, size, 32); 58 arena_handle = os_create_heap(id, heap_start, (void *)((u32)heap_start + size)); 59 60 if (os_check_heap(id, arena_handle) == -1) 61 return -1; //ERROR: DTCM heap is not consistent 62 63 (void)os_set_current_heap(id, arena_handle); 64 65 return arena_handle; 66 } 67
