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66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
/*
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* jmemnobs.c
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*
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* Copyright (C) 1992-1994, 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 ri.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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/*
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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 long
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jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed,
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long max_bytes_needed, long 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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