The Independent JPEG Group's JPEG software v6b

1 files changed, 17 insertions, 2 deletions

diff --git a/jmemsys.h b/jmemsys.h
index 6d4c7f2a..6c3c6d34 100644
--- a/jmemsys.h
+++ b/jmemsys.h
@@ -1,7 +1,7 @@
 /*
  * jmemsys.h
  *
- * Copyright (C) 1992-1996, Thomas G. Lane.
+ * Copyright (C) 1992-1997, 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.
  *
@@ -14,7 +14,8 @@
  * in the IJG distribution.  You may need to modify it if you write a
  * custom memory manager.  If system-dependent changes are needed in
  * this file, the best method is to #ifdef them based on a configuration
- * symbol supplied in jconfig.h, as we have done with USE_MSDOS_MEMMGR.
+ * symbol supplied in jconfig.h, as we have done with USE_MSDOS_MEMMGR
+ * and USE_MAC_MEMMGR.
  */
 
 
@@ -114,6 +115,7 @@ EXTERN(long) jpeg_mem_available JPP((j_common_ptr cinfo,
 
 #define TEMP_NAME_LENGTH   64	/* max length of a temporary file's name */
 
+
 #ifdef USE_MSDOS_MEMMGR		/* DOS-specific junk */
 
 typedef unsigned short XMSH;	/* type of extended-memory handles */
@@ -127,6 +129,11 @@ typedef union {
 
 #endif /* USE_MSDOS_MEMMGR */
 
+#ifdef USE_MAC_MEMMGR		/* Mac-specific junk */
+#include <Files.h>
+#endif /* USE_MAC_MEMMGR */
+
+
 typedef struct backing_store_struct * backing_store_ptr;
 
 typedef struct backing_store_struct {
@@ -148,12 +155,20 @@ typedef struct backing_store_struct {
   handle_union handle;		/* reference to backing-store storage object */
   char temp_name[TEMP_NAME_LENGTH]; /* name if it's a file */
 #else
+#ifdef USE_MAC_MEMMGR
+  /* For the Mac manager (jmemmac.c), we need: */
+  short temp_file;		/* file reference number to temp file */
+  FSSpec tempSpec;		/* the FSSpec for the temp file */
+  char temp_name[TEMP_NAME_LENGTH]; /* name if it's a file */
+#else
   /* For a typical implementation with temp files, we need: */
   FILE * temp_file;		/* stdio reference to temp file */
   char temp_name[TEMP_NAME_LENGTH]; /* name of temp file */
 #endif
+#endif
 } backing_store_info;
 
+
 /*
  * Initial opening of a backing-store object.  This must fill in the
  * read/write/close pointers in the object.  The read/write routines