Index: third_party/libjpeg_turbo/jmemnobs.c |
=================================================================== |
--- third_party/libjpeg_turbo/jmemnobs.c (revision 0) |
+++ third_party/libjpeg_turbo/jmemnobs.c (revision 0) |
@@ -0,0 +1,109 @@ |
+/* |
+ * 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 /* <stdlib.h> should declare malloc(),free() */ |
+extern void * malloc JPP((size_t size)); |
+extern void free JPP((void *ptr)); |
+#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. |
+ * Here we always say, "we got all you want bud!" |
+ */ |
+ |
+GLOBAL(size_t) |
+jpeg_mem_available (j_common_ptr cinfo, size_t min_bytes_needed, |
+ size_t max_bytes_needed, size_t 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 */ |
+} |