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media/libjpeg/simd/jsimdext.inc rename : jpeg/transupp.h => media/libjpeg/transupp.h
110 lines
2.7 KiB
C
110 lines
2.7 KiB
C
/*
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* jmemnobs.c
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*
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* Copyright (C) 1992-1996, Thomas G. Lane.
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* This file is part of the Independent JPEG Group's software.
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* For conditions of distribution and use, see the accompanying README file.
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*
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* This file provides a really simple implementation of the system-
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* dependent portion of the JPEG memory manager. This implementation
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* assumes that no backing-store files are needed: all required space
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* can be obtained from malloc().
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* This is very portable in the sense that it'll compile on almost anything,
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* but you'd better have lots of main memory (or virtual memory) if you want
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* to process big images.
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* Note that the max_memory_to_use option is ignored by this implementation.
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*/
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#define JPEG_INTERNALS
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#include "jinclude.h"
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#include "jpeglib.h"
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#include "jmemsys.h" /* import the system-dependent declarations */
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#ifndef HAVE_STDLIB_H /* <stdlib.h> should declare malloc(),free() */
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extern void * malloc JPP((size_t size));
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extern void free JPP((void *ptr));
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#endif
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/*
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* Memory allocation and freeing are controlled by the regular library
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* routines malloc() and free().
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*/
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GLOBAL(void *)
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jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject)
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{
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return (void *) malloc(sizeofobject);
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}
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GLOBAL(void)
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jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject)
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{
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free(object);
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}
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/*
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* "Large" objects are treated the same as "small" ones.
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* NB: although we include FAR keywords in the routine declarations,
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* this file won't actually work in 80x86 small/medium model; at least,
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* you probably won't be able to process useful-size images in only 64KB.
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*/
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GLOBAL(void FAR *)
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jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject)
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{
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return (void FAR *) malloc(sizeofobject);
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}
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GLOBAL(void)
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jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject)
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{
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free(object);
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}
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/*
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* This routine computes the total memory space available for allocation.
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* Here we always say, "we got all you want bud!"
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*/
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GLOBAL(size_t)
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jpeg_mem_available (j_common_ptr cinfo, size_t min_bytes_needed,
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size_t max_bytes_needed, size_t already_allocated)
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{
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return max_bytes_needed;
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}
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/*
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* Backing store (temporary file) management.
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* Since jpeg_mem_available always promised the moon,
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* this should never be called and we can just error out.
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*/
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GLOBAL(void)
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jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info,
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long total_bytes_needed)
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{
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ERREXIT(cinfo, JERR_NO_BACKING_STORE);
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}
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/*
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* These routines take care of any system-dependent initialization and
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* cleanup required. Here, there isn't any.
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*/
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GLOBAL(long)
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jpeg_mem_init (j_common_ptr cinfo)
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{
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return 0; /* just set max_memory_to_use to 0 */
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}
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GLOBAL(void)
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jpeg_mem_term (j_common_ptr cinfo)
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{
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/* no work */
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}
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