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Diffstat (limited to 'libjpegtwrp/jmem-android.c')
| -rw-r--r-- | libjpegtwrp/jmem-android.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/libjpegtwrp/jmem-android.c b/libjpegtwrp/jmem-android.c deleted file mode 100644 index 5da4d0a6d..000000000 --- a/libjpegtwrp/jmem-android.c +++ /dev/null @@ -1,186 +0,0 @@ -/* - * Copyright (C) 2007-2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#define JPEG_INTERNALS -#include "jinclude.h" -#include "jpeglib.h" -#include "jmemsys.h" /* import the system-dependent declarations */ - -#ifndef HAVE_STDLIB_H /* <stdlib.h> should declare malloc(),free() */ -extern void * malloc JPP((size_t size)); -extern void free JPP((void *ptr)); -#endif - -#ifndef SEEK_SET /* pre-ANSI systems may not define this; */ -#define SEEK_SET 0 /* if not, assume 0 is correct */ -#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); -} - -GLOBAL(void) -jpeg_free_small (j_common_ptr cinfo, void * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * "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); -} - -GLOBAL(void) -jpeg_free_large (j_common_ptr cinfo, void FAR * object, size_t sizeofobject) -{ - free(object); -} - - -/* - * This routine computes the total memory space available for allocation. - * It's impossible to do this in a portable way; our current solution is - * to make the user tell us (with a default value set at compile time). - * If you can actually get the available space, it's a good idea to subtract - * a slop factor of 5% or so. - */ - -#ifndef DEFAULT_MAX_MEM /* so can override from makefile */ -#define DEFAULT_MAX_MEM 10000000L /* default: ten megabyte */ -#endif - -GLOBAL(long) -jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, - long max_bytes_needed, long already_allocated) -{ - return cinfo->mem->max_memory_to_use - already_allocated; -} - - -/* - * Backing store (temporary file) management. - * Backing store objects are only used when the value returned by - * jpeg_mem_available is less than the total space needed. You can dispense - * with these routines if you have plenty of virtual memory; see jmemnobs.c. - */ - - -METHODDEF(void) -read_backing_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - if (fseek(info->temp_file, file_offset, SEEK_SET)) - ERREXIT(cinfo, JERR_TFILE_SEEK); - if (JFREAD(info->temp_file, buffer_address, byte_count) - != (size_t) byte_count) - ERREXIT(cinfo, JERR_TFILE_READ); -} - - -METHODDEF(void) -write_backing_store (j_common_ptr cinfo, backing_store_ptr info, - void FAR * buffer_address, - long file_offset, long byte_count) -{ - if (fseek(info->temp_file, file_offset, SEEK_SET)) - ERREXIT(cinfo, JERR_TFILE_SEEK); - if (JFWRITE(info->temp_file, buffer_address, byte_count) - != (size_t) byte_count) - ERREXIT(cinfo, JERR_TFILE_WRITE); -} - - -METHODDEF(void) -close_backing_store (j_common_ptr cinfo, backing_store_ptr info) -{ - fclose(info->temp_file); - /* Since this implementation uses tmpfile() to create the file, - * no explicit file deletion is needed. - */ -} - -static FILE* getTempFileFromPath(const char * path) { - FILE * fd = fopen(path, "w+"); - unlink(path); - return fd; -} - -static FILE* getTempFile() { - char path[1024]; - snprintf(path, 1023, "/sdcard/.%d.tmp", getpid()); - FILE * fd = getTempFileFromPath(path); - if (fd == NULL) { - // anywhere else we can create a temp file? - // snprintf(path, 1023, "/data/data/.%d.tmp", getpid()); - // fd = getTempFileFromPath(path); - } - return fd; -} - -/* - * Initial opening of a backing-store object. - * - * This version uses tmpfile(), which constructs a suitable file name - * behind the scenes. We don't have to use info->temp_name[] at all; - * indeed, we can't even find out the actual name of the temp file. - */ - -GLOBAL(void) -jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, - long total_bytes_needed) -{ - if ((info->temp_file = getTempFile()) == NULL) - ERREXITS(cinfo, JERR_TFILE_CREATE, ""); - info->read_backing_store = read_backing_store; - info->write_backing_store = write_backing_store; - info->close_backing_store = close_backing_store; -} - - -/* - * These routines take care of any system-dependent initialization and - * cleanup required. - */ - -GLOBAL(long) -jpeg_mem_init (j_common_ptr cinfo) -{ - return DEFAULT_MAX_MEM; /* default for max_memory_to_use */ -} - -GLOBAL(void) -jpeg_mem_term (j_common_ptr cinfo) -{ - /* no work */ -} |