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127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
/* libFLAC - Free Lossless Audio Codec library
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* Copyright (C) 2001 Josh Coalson
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <assert.h>
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#include "private/memory.h"
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void *FLAC__memory_alloc_aligned(size_t bytes, void **aligned_address)
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{
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void *x;
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assert(0 != aligned_address);
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#ifdef FLAC__ALIGN_MALLOC_DATA
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/* align on 32-byte (256-bit) boundary */
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x = malloc(bytes+31);
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*aligned_address = (void*)(((unsigned)x + 31) & -32);
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#else
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x = malloc(bytes);
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*aligned_address = x;
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#endif
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return x;
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}
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bool FLAC__memory_alloc_aligned_int32_array(unsigned elements, int32 **unaligned_pointer, int32 **aligned_pointer)
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{
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int32 *pa, *pu; /* aligned pointer, unaligned pointer */
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assert(elements > 0);
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assert(0 != unaligned_pointer);
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assert(0 != aligned_pointer);
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assert(unaligned_pointer != aligned_pointer);
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pu = (int32*)FLAC__memory_alloc_aligned(sizeof(int32) * elements, (void*)&pa);
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if(0 == pu) {
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return false;
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}
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else {
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if(*unaligned_pointer != 0)
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free(*unaligned_pointer);
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*unaligned_pointer = pu;
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*aligned_pointer = pa;
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return true;
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}
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}
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bool FLAC__memory_alloc_aligned_uint32_array(unsigned elements, uint32 **unaligned_pointer, uint32 **aligned_pointer)
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{
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uint32 *pa, *pu; /* aligned pointer, unaligned pointer */
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assert(elements > 0);
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assert(0 != unaligned_pointer);
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assert(0 != aligned_pointer);
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assert(unaligned_pointer != aligned_pointer);
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pu = (uint32*)FLAC__memory_alloc_aligned(sizeof(uint32) * elements, (void*)&pa);
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if(0 == pu) {
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return false;
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}
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else {
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if(*unaligned_pointer != 0)
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free(*unaligned_pointer);
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*unaligned_pointer = pu;
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*aligned_pointer = pa;
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return true;
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}
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}
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bool FLAC__memory_alloc_aligned_unsigned_array(unsigned elements, unsigned **unaligned_pointer, unsigned **aligned_pointer)
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{
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unsigned *pa, *pu; /* aligned pointer, unaligned pointer */
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assert(elements > 0);
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assert(0 != unaligned_pointer);
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assert(0 != aligned_pointer);
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assert(unaligned_pointer != aligned_pointer);
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pu = (unsigned*)FLAC__memory_alloc_aligned(sizeof(unsigned) * elements, (void*)&pa);
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if(0 == pu) {
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return false;
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}
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else {
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if(*unaligned_pointer != 0)
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free(*unaligned_pointer);
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*unaligned_pointer = pu;
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*aligned_pointer = pa;
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return true;
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}
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}
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bool FLAC__memory_alloc_aligned_real_array(unsigned elements, real **unaligned_pointer, real **aligned_pointer)
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{
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real *pa, *pu; /* aligned pointer, unaligned pointer */
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assert(elements > 0);
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assert(0 != unaligned_pointer);
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assert(0 != aligned_pointer);
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assert(unaligned_pointer != aligned_pointer);
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pu = (real*)FLAC__memory_alloc_aligned(sizeof(real) * elements, (void*)&pa);
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if(0 == pu) {
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return false;
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}
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else {
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if(*unaligned_pointer != 0)
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free(*unaligned_pointer);
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*unaligned_pointer = pu;
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*aligned_pointer = pa;
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return true;
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}
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}
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