From 5110c4743751145c4ae1934cd1d83bc6c55bb43f Mon Sep 17 00:00:00 2001 From: John Abd-El-Malek Date: Sat, 17 May 2014 22:33:34 -0700 Subject: Initial commit. --- core/src/fxcodec/libjpeg/fpdfapi_jmemnobs.c | 126 ++++++++++++++++++++++++++++ 1 file changed, 126 insertions(+) create mode 100644 core/src/fxcodec/libjpeg/fpdfapi_jmemnobs.c (limited to 'core/src/fxcodec/libjpeg/fpdfapi_jmemnobs.c') diff --git a/core/src/fxcodec/libjpeg/fpdfapi_jmemnobs.c b/core/src/fxcodec/libjpeg/fpdfapi_jmemnobs.c new file mode 100644 index 0000000000..98aed723a6 --- /dev/null +++ b/core/src/fxcodec/libjpeg/fpdfapi_jmemnobs.c @@ -0,0 +1,126 @@ +#if !defined(_FX_JPEG_TURBO_) +/* + * jmemnobs.c + * + * Copyright (C) 1992-1996, Thomas G. Lane. + * This file is part of the Independent JPEG Group's software. + * For conditions of distribution and use, see the accompanying README file. + * + * This file provides a really simple implementation of the system- + * dependent portion of the JPEG memory manager. This implementation + * assumes that no backing-store files are needed: all required space + * can be obtained from malloc(). + * This is very portable in the sense that it'll compile on almost anything, + * but you'd better have lots of main memory (or virtual memory) if you want + * to process big images. + * Note that the max_memory_to_use option is ignored by this implementation. + */ + +#define JPEG_INTERNALS +#include "jinclude.h" +#include "jpeglib.h" +#include "jmemsys.h" /* import the system-dependent declarations */ + +#ifndef HAVE_STDLIB_H /* should declare malloc(),free() */ +extern void * malloc JPP((size_t size)); +extern void free JPP((void *ptr)); +#endif + +#if defined(_FX_MANAGED_CODE_) && defined(__cplusplus) +extern "C" { +#endif + +void* FXMEM_DefaultAlloc(int byte_size, int); +void FXMEM_DefaultFree(void* pointer, int); + +#if defined(_FX_MANAGED_CODE_) && defined(__cplusplus) +} +#endif + +/* + * Memory allocation and freeing are controlled by the regular library + * routines malloc() and free(). + */ + +GLOBAL(void *) +jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject) +{ +// return (void *) malloc(sizeofobject); + return FXMEM_DefaultAlloc(sizeofobject, 0); +} + +GLOBAL(void) +jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) +{ +// free(object); + FXMEM_DefaultFree(object, 0); +} + + +/* + * "Large" objects are treated the same as "small" ones. + * NB: although we include FAR keywords in the routine declarations, + * this file won't actually work in 80x86 small/medium model; at least, + * you probably won't be able to process useful-size images in only 64KB. + */ + +GLOBAL(void FAR *) +jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject) +{ +// return (void FAR *) malloc(sizeofobject); + return FXMEM_DefaultAlloc(sizeofobject, 0); +} + +GLOBAL(void) +jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) +{ +// free(object); + FXMEM_DefaultFree(object, 0); +} + + +/* + * This routine computes the total memory space available for allocation. + * Here we always say, "we got all you want bud!" + */ + +GLOBAL(long) +jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, + long max_bytes_needed, long already_allocated) +{ + return max_bytes_needed; +} + + +/* + * Backing store (temporary file) management. + * Since jpeg_mem_available always promised the moon, + * this should never be called and we can just error out. + */ + +GLOBAL(void) +jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, + long total_bytes_needed) +{ + ERREXIT(cinfo, JERR_NO_BACKING_STORE); +} + + +/* + * These routines take care of any system-dependent initialization and + * cleanup required. Here, there isn't any. + */ + +GLOBAL(long) +jpeg_mem_init (j_common_ptr cinfo) +{ + return 0; /* just set max_memory_to_use to 0 */ +} + +GLOBAL(void) +jpeg_mem_term (j_common_ptr cinfo) +{ + /* no work */ +} + +#endif //_FX_JPEG_TURBO_ -- cgit v1.2.3