#include "jinclude.h"
#include "jpeglib.h"
#include "jmemsys.h"

Include dependency graph for jmemdos.c:

Classes
struct	XMScontext

struct	EMScontext

union	XMSPTR

struct	XMSspec

union	EMSspec

Macros
#define	XMS_SUPPORTED 1

#define	EMS_SUPPORTED 1

#define	JPEG_INTERNALS

#define	far_malloc(x) malloc(x)

#define	far_free(x) free(x)

#define	READ_BINARY "rb"

#define	DEFAULT_MAX_MEM 300000L /* for total usage about 450K */

#define	ODD(X) (((X) & 1L) != 0)

#define	FIELD_AT(spec, offset, type) (((type ) &(spec.bytes[offset])))

#define	SRC_TYPE(spec) FIELD_AT(spec,4,char)

#define	SRC_HANDLE(spec) FIELD_AT(spec,5,EMSH)

#define	SRC_OFFSET(spec) FIELD_AT(spec,7,unsigned short)

#define	SRC_PAGE(spec) FIELD_AT(spec,9,unsigned short)

#define	SRC_PTR(spec) FIELD_AT(spec,7,EMSPTR)

#define	DST_TYPE(spec) FIELD_AT(spec,11,char)

#define	DST_HANDLE(spec) FIELD_AT(spec,12,EMSH)

#define	DST_OFFSET(spec) FIELD_AT(spec,14,unsigned short)

#define	DST_PAGE(spec) FIELD_AT(spec,16,unsigned short)

#define	DST_PTR(spec) FIELD_AT(spec,14,EMSPTR)

#define	EMSPAGESIZE 16384L /* gospel, see the EMS specs */

#define	HIBYTE(W) (((W) >> 8) & 0xFF)

#define	LOBYTE(W) ((W) & 0xFF)

Typedefs
typedef void far *	EMSPTR

Functions
void *malloc	JPP ((size_t size))

void free	JPP ((void *ptr))

char *getenv	JPP ((const char *name))

short far jdos_open	JPP ((short far handle, char far filename))

short far jdos_close	JPP ((short handle))

short far jdos_seek	JPP ((short handle, long offset))

short far jdos_read	JPP ((short handle, void far *buffer, unsigned short count))

void far jxms_getdriver	JPP ((XMSDRIVER far *))

void far jxms_calldriver	JPP ((XMSDRIVER, XMScontext far *))

short far jems_available	JPP ((void))

void far jems_calldriver	JPP ((EMScontext far *))

	select_file_name (char *fname)

	jpeg_get_small (j_common_ptr cinfo, size_t sizeofobject)

	jpeg_free_small (j_common_ptr cinfo, void *object, size_t sizeofobject)

	jpeg_get_large (j_common_ptr cinfo, size_t sizeofobject)

	jpeg_free_large (j_common_ptr cinfo, void FAR *object, size_t sizeofobject)

	jpeg_mem_available (j_common_ptr cinfo, long min_bytes_needed, long max_bytes_needed, long already_allocated)

	read_file_store (j_common_ptr cinfo, backing_store_ptr info, void FAR *buffer_address, long file_offset, long byte_count)

	write_file_store (j_common_ptr cinfo, backing_store_ptr info, void FAR *buffer_address, long file_offset, long byte_count)

	close_file_store (j_common_ptr cinfo, backing_store_ptr info)

	open_file_store (j_common_ptr cinfo, backing_store_ptr info, long total_bytes_needed)

	read_xms_store (j_common_ptr cinfo, backing_store_ptr info, void FAR *buffer_address, long file_offset, long byte_count)

	write_xms_store (j_common_ptr cinfo, backing_store_ptr info, void FAR *buffer_address, long file_offset, long byte_count)

	close_xms_store (j_common_ptr cinfo, backing_store_ptr info)

	open_xms_store (j_common_ptr cinfo, backing_store_ptr info, long total_bytes_needed)

	read_ems_store (j_common_ptr cinfo, backing_store_ptr info, void FAR *buffer_address, long file_offset, long byte_count)

	write_ems_store (j_common_ptr cinfo, backing_store_ptr info, void FAR *buffer_address, long file_offset, long byte_count)

	close_ems_store (j_common_ptr cinfo, backing_store_ptr info)

	open_ems_store (j_common_ptr cinfo, backing_store_ptr info, long total_bytes_needed)

	jpeg_open_backing_store (j_common_ptr cinfo, backing_store_ptr info, long total_bytes_needed)

	jpeg_mem_init (j_common_ptr cinfo)

	jpeg_mem_term (j_common_ptr cinfo)

Variables
You forgot to define USE_MSDOS_MEMMGR in jconfig h typedef void far *	XMSDRIVER

static int	next_file_num

static XMSDRIVER	xms_driver

Macro Definition Documentation

◆ DEFAULT_MAX_MEM

#define DEFAULT_MAX_MEM 300000L /* for total usage about 450K */

Definition at line 204 of file jmemdos.c.

◆ DST_HANDLE

#define DST_HANDLE ( spec ) FIELD_AT(spec,12,EMSH)

Definition at line 479 of file jmemdos.c.

◆ DST_OFFSET

#define DST_OFFSET ( spec ) FIELD_AT(spec,14,unsigned short)

Definition at line 480 of file jmemdos.c.

◆ DST_PAGE

#define DST_PAGE ( spec ) FIELD_AT(spec,16,unsigned short)

Definition at line 481 of file jmemdos.c.

◆ DST_PTR

#define DST_PTR ( spec ) FIELD_AT(spec,14,EMSPTR)

Definition at line 482 of file jmemdos.c.

◆ DST_TYPE

#define DST_TYPE ( spec ) FIELD_AT(spec,11,char)

Definition at line 478 of file jmemdos.c.

◆ EMS_SUPPORTED

#define EMS_SUPPORTED 1

Definition at line 38 of file jmemdos.c.

◆ EMSPAGESIZE

#define EMSPAGESIZE 16384L /* gospel, see the EMS specs */

Definition at line 484 of file jmemdos.c.

◆ far_free

#define far_free ( x ) free(x)

Definition at line 70 of file jmemdos.c.

◆ far_malloc

#define far_malloc ( x ) malloc(x)

Definition at line 69 of file jmemdos.c.

◆ FIELD_AT

#define FIELD_AT	(	spec,
		offset,
		type
	)	(((type ) &(spec.bytes[offset])))

Definition at line 472 of file jmemdos.c.

◆ HIBYTE

#define HIBYTE ( W ) (((W) >> 8) & 0xFF)

Definition at line 486 of file jmemdos.c.

◆ JPEG_INTERNALS

#define JPEG_INTERNALS

Definition at line 42 of file jmemdos.c.

◆ LOBYTE

#define LOBYTE ( W ) ((W) & 0xFF)

Definition at line 487 of file jmemdos.c.

◆ ODD

#define ODD ( X ) (((X) & 1L) != 0)

Definition at line 329 of file jmemdos.c.

◆ READ_BINARY

#define READ_BINARY "rb"

Definition at line 77 of file jmemdos.c.

◆ SRC_HANDLE

#define SRC_HANDLE ( spec ) FIELD_AT(spec,5,EMSH)

Definition at line 474 of file jmemdos.c.

◆ SRC_OFFSET

#define SRC_OFFSET ( spec ) FIELD_AT(spec,7,unsigned short)

Definition at line 475 of file jmemdos.c.

◆ SRC_PAGE

#define SRC_PAGE ( spec ) FIELD_AT(spec,9,unsigned short)

Definition at line 476 of file jmemdos.c.

◆ SRC_PTR

#define SRC_PTR ( spec ) FIELD_AT(spec,7,EMSPTR)

Definition at line 477 of file jmemdos.c.

◆ SRC_TYPE

#define SRC_TYPE ( spec ) FIELD_AT(spec,4,char)

Definition at line 473 of file jmemdos.c.

◆ XMS_SUPPORTED

#define XMS_SUPPORTED 1

Definition at line 35 of file jmemdos.c.

Typedef Documentation

◆ EMSPTR

typedef void far* EMSPTR

Definition at line 464 of file jmemdos.c.

Function Documentation

◆ close_ems_store()

close_ems_store	(	j_common_ptr	cinfo,
		backing_store_ptr	info
	)

Definition at line 541 of file jmemdos.c.

 {
   EMScontext ctx;
 
   ctx.ax = 0x4500;
   ctx.dx = info->handle.ems_handle;
   jems_calldriver((EMScontext far *) & ctx);
   TRACEMS1(cinfo, 1, JTRC_EMS_CLOSE, info->handle.ems_handle);
   /* we ignore any error return from the driver */
 }

Referenced by open_ems_store().

◆ close_file_store()

close_file_store	(	j_common_ptr	cinfo,
		backing_store_ptr	info
	)

Definition at line 275 of file jmemdos.c.

 {
   jdos_close(info->handle.file_handle); /* close the file */
   remove(info->temp_name);  /* delete the file */
 /* If your system doesn't have remove(), try unlink() instead.
  * remove() is the ANSI-standard name for this function, but
  * unlink() was more common in pre-ANSI systems.
  */
   TRACEMSS(cinfo, 1, JTRC_TFILE_CLOSE, info->temp_name);
 }

Referenced by open_file_store().

◆ close_xms_store()

close_xms_store	(	j_common_ptr	cinfo,
		backing_store_ptr	info
	)

Definition at line 401 of file jmemdos.c.

 {
   XMScontext ctx;
 
   ctx.dx = info->handle.xms_handle;
   ctx.ax = 0x0a00;
   jxms_calldriver(xms_driver, (XMScontext far *) & ctx);
   TRACEMS1(cinfo, 1, JTRC_XMS_CLOSE, info->handle.xms_handle);
   /* we ignore any error return from the driver */
 }

Referenced by open_xms_store().

◆ jpeg_free_large()

jpeg_free_large	(	j_common_ptr	cinfo,
		void FAR *	object,
		size_t	sizeofobject
	)

Definition at line 189 of file jmemdos.c.

 {
   far_free(object);
 }

◆ jpeg_free_small()

jpeg_free_small	(	j_common_ptr	cinfo,
		void *	object,
		size_t	sizeofobject
	)

Definition at line 172 of file jmemdos.c.

 {
   free(object);
 }

◆ jpeg_get_large()

jpeg_get_large	(	j_common_ptr	cinfo,
		size_t	sizeofobject
	)

Definition at line 183 of file jmemdos.c.

 {
   return (void FAR *) far_malloc(sizeofobject);
 }

◆ jpeg_get_small()

jpeg_get_small	(	j_common_ptr	cinfo,
		size_t	sizeofobject
	)

Definition at line 166 of file jmemdos.c.

 {
   return (void *) malloc(sizeofobject);
 }

◆ jpeg_mem_available()

jpeg_mem_available	(	j_common_ptr	cinfo,
		long	min_bytes_needed,
		long	max_bytes_needed,
		long	already_allocated
	)

Definition at line 208 of file jmemdos.c.

 {
   return cinfo->mem->max_memory_to_use - already_allocated;
 }

◆ jpeg_mem_init()

jpeg_mem_init ( j_common_ptr cinfo )

Definition at line 623 of file jmemdos.c.

 {
   next_file_num = 0;        /* initialize temp file name generator */
   return DEFAULT_MAX_MEM;   /* default for max_memory_to_use */
 }

◆ jpeg_mem_term()

jpeg_mem_term ( j_common_ptr cinfo )

Definition at line 630 of file jmemdos.c.

 {
   /* Microsoft C, at least in v6.00A, will not successfully reclaim freed
    * blocks of size > 32Kbytes unless we give it a kick in the rear, like so:
    */
 #ifdef NEED_FHEAPMIN
   _fheapmin();
 #endif
 }

◆ jpeg_open_backing_store()

jpeg_open_backing_store	(	j_common_ptr	cinfo,
		backing_store_ptr	info,
		long	total_bytes_needed
	)

Definition at line 599 of file jmemdos.c.

 {
   /* Try extended memory, then expanded memory, then regular file. */
 #if XMS_SUPPORTED
   if (open_xms_store(cinfo, info, total_bytes_needed))
     return;
 #endif
 #if EMS_SUPPORTED
   if (open_ems_store(cinfo, info, total_bytes_needed))
     return;
 #endif
   if (open_file_store(cinfo, info, total_bytes_needed))
     return;
   ERREXITS(cinfo, JERR_TFILE_CREATE, "");
 }

◆ JPP() [1/11]

void* malloc JPP ( (size_t size) )

◆ JPP() [2/11]

void free JPP ( (void *ptr) )

◆ JPP() [3/11]

char* getenv JPP ( (const char *name) )

◆ JPP() [4/11]

short far jdos_open JPP ( (short far *handle, char far *filename) )

◆ JPP() [5/11]

short far jdos_close JPP ( (short handle) )

◆ JPP() [6/11]

short far jdos_seek JPP ( (short handle, long offset) )

◆ JPP() [7/11]

short far jdos_write JPP ( (short handle, void far *buffer, unsigned short count) )

◆ JPP() [8/11]

void far jxms_getdriver JPP ( (XMSDRIVER far *) )

◆ JPP() [9/11]

void far jxms_calldriver JPP ( (XMSDRIVER, XMScontext far *) )

◆ JPP() [10/11]

short far jems_available JPP ( (void) )

◆ JPP() [11/11]

void far jems_calldriver JPP ( (EMScontext far *) )

◆ open_ems_store()

open_ems_store	(	j_common_ptr	cinfo,
		backing_store_ptr	info,
		long	total_bytes_needed
	)

Definition at line 554 of file jmemdos.c.

 {
   EMScontext ctx;
 
   /* Is EMS driver there? */
   if (! jems_available())
     return FALSE;
 
   /* Get status, make sure EMS is OK */
   ctx.ax = 0x4000;
   jems_calldriver((EMScontext far *) & ctx);
   if (HIBYTE(ctx.ax) != 0)
     return FALSE;
 
   /* Get version, must be >= 4.0 */
   ctx.ax = 0x4600;
   jems_calldriver((EMScontext far *) & ctx);
   if (HIBYTE(ctx.ax) != 0 || LOBYTE(ctx.ax) < 0x40)
     return FALSE;
 
   /* Try to allocate requested space */
   ctx.ax = 0x4300;
   ctx.bx = (unsigned short) ((total_bytes_needed + EMSPAGESIZE-1L) / EMSPAGESIZE);
   jems_calldriver((EMScontext far *) & ctx);
   if (HIBYTE(ctx.ax) != 0)
     return FALSE;
 
   /* Succeeded, save the handle and away we go */
   info->handle.ems_handle = ctx.dx;
   info->read_backing_store = read_ems_store;
   info->write_backing_store = write_ems_store;
   info->close_backing_store = close_ems_store;
   TRACEMS1(cinfo, 1, JTRC_EMS_OPEN, ctx.dx);
   return TRUE;          /* succeeded */
 }

Referenced by jpeg_open_backing_store().

◆ open_file_store()

open_file_store	(	j_common_ptr	cinfo,
		backing_store_ptr	info,
		long	total_bytes_needed
	)

Definition at line 288 of file jmemdos.c.

 {
   short handle;
 
   select_file_name(info->temp_name);
   if (jdos_open((short far *) & handle, (char far *) info->temp_name)) {
     /* might as well exit since jpeg_open_backing_store will fail anyway */
     ERREXITS(cinfo, JERR_TFILE_CREATE, info->temp_name);
     return FALSE;
   }
   info->handle.file_handle = handle;
   info->read_backing_store = read_file_store;
   info->write_backing_store = write_file_store;
   info->close_backing_store = close_file_store;
   TRACEMSS(cinfo, 1, JTRC_TFILE_OPEN, info->temp_name);
   return TRUE;          /* succeeded */
 }

Referenced by jpeg_open_backing_store().

◆ open_xms_store()

open_xms_store	(	j_common_ptr	cinfo,
		backing_store_ptr	info,
		long	total_bytes_needed
	)

Definition at line 414 of file jmemdos.c.

 {
   XMScontext ctx;
 
   /* Get address of XMS driver */
   jxms_getdriver((XMSDRIVER far *) & xms_driver);
   if (xms_driver == NULL)
     return FALSE;       /* no driver to be had */
 
   /* Get version number, must be >= 2.00 */
   ctx.ax = 0x0000;
   jxms_calldriver(xms_driver, (XMScontext far *) & ctx);
   if (ctx.ax < (unsigned short) 0x0200)
     return FALSE;
 
   /* Try to get space (expressed in kilobytes) */
   ctx.dx = (unsigned short) ((total_bytes_needed + 1023L) >> 10);
   ctx.ax = 0x0900;
   jxms_calldriver(xms_driver, (XMScontext far *) & ctx);
   if (ctx.ax != 1)
     return FALSE;
 
   /* Succeeded, save the handle and away we go */
   info->handle.xms_handle = ctx.dx;
   info->read_backing_store = read_xms_store;
   info->write_backing_store = write_xms_store;
   info->close_backing_store = close_xms_store;
   TRACEMS1(cinfo, 1, JTRC_XMS_OPEN, ctx.dx);
   return TRUE;          /* succeeded */
 }

Referenced by jpeg_open_backing_store().

◆ read_ems_store()

read_ems_store	(	j_common_ptr	cinfo,
		backing_store_ptr	info,
		void FAR *	buffer_address,
		long	file_offset,
		long	byte_count
	)

Definition at line 491 of file jmemdos.c.

 {
   EMScontext ctx;
   EMSspec spec;
 
   spec.length = byte_count;
   SRC_TYPE(spec) = 1;
   SRC_HANDLE(spec) = info->handle.ems_handle;
   SRC_PAGE(spec)   = (unsigned short) (file_offset / EMSPAGESIZE);
   SRC_OFFSET(spec) = (unsigned short) (file_offset % EMSPAGESIZE);
   DST_TYPE(spec) = 0;
   DST_HANDLE(spec) = 0;
   DST_PTR(spec)    = buffer_address;
   
   ctx.ds_si = (void far *) & spec;
   ctx.ax = 0x5700;      /* move memory region */
   jems_calldriver((EMScontext far *) & ctx);
   if (HIBYTE(ctx.ax) != 0)
     ERREXIT(cinfo, JERR_EMS_READ);
 }

Referenced by open_ems_store().

◆ read_file_store()

read_file_store	(	j_common_ptr	cinfo,
		backing_store_ptr	info,
		void FAR *	buffer_address,
		long	file_offset,
		long	byte_count
	)

Definition at line 243 of file jmemdos.c.

 {
   if (jdos_seek(info->handle.file_handle, file_offset))
     ERREXIT(cinfo, JERR_TFILE_SEEK);
   /* Since MAX_ALLOC_CHUNK is less than 64K, byte_count will be too. */
   if (byte_count > 65535L)  /* safety check */
     ERREXIT(cinfo, JERR_BAD_ALLOC_CHUNK);
   if (jdos_read(info->handle.file_handle, buffer_address,
         (unsigned short) byte_count))
     ERREXIT(cinfo, JERR_TFILE_READ);
 }

Referenced by open_file_store().

◆ read_xms_store()

read_xms_store	(	j_common_ptr	cinfo,
		backing_store_ptr	info,
		void FAR *	buffer_address,
		long	file_offset,
		long	byte_count
	)

Definition at line 333 of file jmemdos.c.

 {
   XMScontext ctx;
   XMSspec spec;
   char endbuffer[2];
 
   /* The XMS driver can't cope with an odd length, so handle the last byte
    * specially if byte_count is odd.  We don't expect this to be common.
    */
 
   spec.length = byte_count & (~ 1L);
   spec.src_handle = info->handle.xms_handle;
   spec.src.offset = file_offset;
   spec.dst_handle = 0;
   spec.dst.ptr = buffer_address;
   
   ctx.ds_si = (void far *) & spec;
   ctx.ax = 0x0b00;      /* EMB move */
   jxms_calldriver(xms_driver, (XMScontext far *) & ctx);
   if (ctx.ax != 1)
     ERREXIT(cinfo, JERR_XMS_READ);
 
   if (ODD(byte_count)) {
     read_xms_store(cinfo, info, (void FAR *) endbuffer,
            file_offset + byte_count - 1L, 2L);
     ((char FAR *) buffer_address)[byte_count - 1L] = endbuffer[0];
   }
 }

Referenced by open_xms_store(), and write_xms_store().

◆ select_file_name()

select_file_name ( char * fname )

Definition at line 128 of file jmemdos.c.

 {
   const char * env;
   char * ptr;
   FILE * tfile;
 
   /* Keep generating file names till we find one that's not in use */
   for (;;) {
     /* Get temp directory name from environment TMP or TEMP variable;
      * if none, use "."
      */
     if ((env = (const char *) getenv("TMP")) == NULL)
       if ((env = (const char *) getenv("TEMP")) == NULL)
     env = ".";
     if (*env == '\0')       /* null string means "." */
       env = ".";
     ptr = fname;        /* copy name to fname */
     while (*env != '\0')
       *ptr++ = *env++;
     if (ptr[-1] != '\\' && ptr[-1] != '/')
       *ptr++ = '\\';        /* append backslash if not in env variable */
     /* Append a suitable file name */
     next_file_num++;        /* advance counter */
     sprintf(ptr, "JPG%03d.TMP", next_file_num);
     /* Probe to see if file name is already in use */
     if ((tfile = fopen(fname, READ_BINARY)) == NULL)
       break;
     fclose(tfile);      /* oops, it's there; close tfile & try again */
   }
 }

Referenced by open_file_store().

◆ write_ems_store()

write_ems_store	(	j_common_ptr	cinfo,
		backing_store_ptr	info,
		void FAR *	buffer_address,
		long	file_offset,
		long	byte_count
	)

Definition at line 516 of file jmemdos.c.

 {
   EMScontext ctx;
   EMSspec spec;
 
   spec.length = byte_count;
   SRC_TYPE(spec) = 0;
   SRC_HANDLE(spec) = 0;
   SRC_PTR(spec)    = buffer_address;
   DST_TYPE(spec) = 1;
   DST_HANDLE(spec) = info->handle.ems_handle;
   DST_PAGE(spec)   = (unsigned short) (file_offset / EMSPAGESIZE);
   DST_OFFSET(spec) = (unsigned short) (file_offset % EMSPAGESIZE);
   
   ctx.ds_si = (void far *) & spec;
   ctx.ax = 0x5700;      /* move memory region */
   jems_calldriver((EMScontext far *) & ctx);
   if (HIBYTE(ctx.ax) != 0)
     ERREXIT(cinfo, JERR_EMS_WRITE);
 }

Referenced by open_ems_store().

◆ write_file_store()

write_file_store	(	j_common_ptr	cinfo,
		backing_store_ptr	info,
		void FAR *	buffer_address,
		long	file_offset,
		long	byte_count
	)

Definition at line 259 of file jmemdos.c.

 {
   if (jdos_seek(info->handle.file_handle, file_offset))
     ERREXIT(cinfo, JERR_TFILE_SEEK);
   /* Since MAX_ALLOC_CHUNK is less than 64K, byte_count will be too. */
   if (byte_count > 65535L)  /* safety check */
     ERREXIT(cinfo, JERR_BAD_ALLOC_CHUNK);
   if (jdos_write(info->handle.file_handle, buffer_address,
          (unsigned short) byte_count))
     ERREXIT(cinfo, JERR_TFILE_WRITE);
 }

Referenced by open_file_store().

◆ write_xms_store()

write_xms_store	(	j_common_ptr	cinfo,
		backing_store_ptr	info,
		void FAR *	buffer_address,
		long	file_offset,
		long	byte_count
	)

Definition at line 366 of file jmemdos.c.

 {
   XMScontext ctx;
   XMSspec spec;
   char endbuffer[2];
 
   /* The XMS driver can't cope with an odd length, so handle the last byte
    * specially if byte_count is odd.  We don't expect this to be common.
    */
 
   spec.length = byte_count & (~ 1L);
   spec.src_handle = 0;
   spec.src.ptr = buffer_address;
   spec.dst_handle = info->handle.xms_handle;
   spec.dst.offset = file_offset;
 
   ctx.ds_si = (void far *) & spec;
   ctx.ax = 0x0b00;      /* EMB move */
   jxms_calldriver(xms_driver, (XMScontext far *) & ctx);
   if (ctx.ax != 1)
     ERREXIT(cinfo, JERR_XMS_WRITE);
 
   if (ODD(byte_count)) {
     read_xms_store(cinfo, info, (void FAR *) endbuffer,
            file_offset + byte_count - 1L, 2L);
     endbuffer[0] = ((char FAR *) buffer_address)[byte_count - 1L];
     write_xms_store(cinfo, info, (void FAR *) endbuffer,
             file_offset + byte_count - 1L, 2L);
   }
 }

Referenced by open_xms_store().

Variable Documentation

◆ next_file_num

int next_file_num

static

Definition at line 125 of file jmemdos.c.

Referenced by jpeg_mem_init(), and select_file_name().

◆ xms_driver

XMSDRIVER xms_driver

static

Definition at line 314 of file jmemdos.c.

Referenced by close_xms_store(), open_xms_store(), read_xms_store(), and write_xms_store().

◆ XMSDRIVER

You forgot to define USE_MSDOS_MEMMGR in jconfig h typedef void far* XMSDRIVER

Definition at line 97 of file jmemdos.c.

Referenced by open_xms_store().

Classes

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ DEFAULT_MAX_MEM

◆ DST_HANDLE

◆ DST_OFFSET

◆ DST_PAGE

◆ DST_PTR

◆ DST_TYPE

◆ EMS_SUPPORTED

◆ EMSPAGESIZE

◆ far_free

◆ far_malloc

◆ FIELD_AT

◆ HIBYTE

◆ JPEG_INTERNALS

◆ LOBYTE

◆ ODD

◆ READ_BINARY

◆ SRC_HANDLE

◆ SRC_OFFSET

◆ SRC_PAGE

◆ SRC_PTR

◆ SRC_TYPE

◆ XMS_SUPPORTED

Typedef Documentation

◆ EMSPTR

Function Documentation

◆ close_ems_store()

◆ close_file_store()

◆ close_xms_store()

◆ jpeg_free_large()

◆ jpeg_free_small()

◆ jpeg_get_large()

◆ jpeg_get_small()

◆ jpeg_mem_available()

◆ jpeg_mem_init()

◆ jpeg_mem_term()

◆ jpeg_open_backing_store()

◆ JPP() [1/11]

◆ JPP() [2/11]

◆ JPP() [3/11]

◆ JPP() [4/11]

◆ JPP() [5/11]

◆ JPP() [6/11]

◆ JPP() [7/11]

◆ JPP() [8/11]

◆ JPP() [9/11]

◆ JPP() [10/11]

◆ JPP() [11/11]

◆ open_ems_store()

◆ open_file_store()

◆ open_xms_store()

◆ read_ems_store()

◆ read_file_store()

◆ read_xms_store()

◆ select_file_name()

◆ write_ems_store()

◆ write_file_store()

◆ write_xms_store()

Variable Documentation

◆ next_file_num

◆ xms_driver

◆ XMSDRIVER