Bug 601821 - Retrieve multiple images from TWAIN data source

(primarily multiple pages from a scanner document feeder)

plug-ins/twain/Makefile.am

@@ -22,8 +22,9 @@ endif
 if HAVE_WINDRES
 include $(top_srcdir)/build/windows/gimprc-plug-ins.rule
 twain_RC = twain.rc.o
+twaindata_DATA = twain-menu.png
 endif
-
+twaindatadir = $(gimpdatadir)/twain
 
 twain_SOURCES = \
 	tw_func.c	\

plug-ins/twain/tw_dump.c

@@ -1,273 +0,0 @@
-/*
- * TWAIN Plug-in
- * Copyright (C) 1999 Craig Setera
- * Craig Setera <setera@home.com>
- * 03/31/1999
- *
- * Updated for Mac OS X support
- * Brion Vibber <brion@pobox.com>
- * 07/22/2004
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- *
- * Based on (at least) the following plug-ins:
- * Screenshot
- * GIF
- * Randomize
- *
- * Any suggestions, bug-reports or patches are welcome.
- *
- * This plug-in interfaces to the TWAIN support library in order
- * to capture images from TWAIN devices directly into GIMP images.
- * The plug-in is capable of acquiring the following type of
- * images:
- * - B/W (1 bit images translated to grayscale B/W)
- * - Grayscale up to 16 bits per pixel
- * - RGB up to 16 bits per sample (24, 30, 36, etc.)
- * - Paletted images (both Gray and RGB)
- *
- * Prerequisites:
- * Should compile and run on both Win32 and Mac OS X 10.3 (possibly
- * also on 10.2).
- *
- * Known problems:
- * - Multiple image transfers will hang the plug-in.  The current
- *   configuration compiles with a maximum of single image transfers.
- * - On Mac OS X, canceling doesn't always close things out fully.
- * - Epson TWAIN driver on Mac OS X crashes the plugin when scanning.
- */
-
-/*
- * Revision history
- *  (02/07/99)  v0.1   First working version (internal)
- *  (02/09/99)  v0.2   First release to anyone other than myself
- *  (02/15/99)  v0.3   Added image dump and read support for debugging
- *  (03/31/99)  v0.5   Added support for multi-byte samples and paletted
- *                     images.
- *  (07/23/04)  v0.6   Added Mac OS X support.
- */
-
-#include "config.h"
-
-#include <string.h>
-
-#include <glib/gstdio.h>
-
-#include "libgimp/gimp.h"
-
-#include "tw_dump.h"
-#include "tw_func.h"
-#include "tw_util.h"
-
-/* File variables */
-static FILE *outputFile = NULL;
-extern pTW_SESSION twSession;
-
-/*
- * dumpPreTransferCallback
- *
- * This callback function is called before any images
- * are transferred.  Set up the one time only stuff.
- */
-void
-dumpPreTransferCallback(void *clientData)
-{
-  /* Open our output file... Not settable... Always
-   * write to the root directory.  Simplistic, but
-   * gets the job done.
-   */
-  outputFile = g_fopen(DUMP_FILE, "wb");
-}
-
-/*
- * dumpBeginTransferCallback
- *
- * The following function is called at the beginning
- * of each image transfer.
- */
-int
-dumpBeginTransferCallback(pTW_IMAGEINFO imageInfo, void *clientData)
-{
-  logBegin(imageInfo, clientData);
-
-  /* Dump the image information */
-  fwrite((void *) imageInfo, sizeof(TW_IMAGEINFO), 1, outputFile);
-
-  /* Keep going */
-  return TRUE;
-}
-
-/*
- * dumpDataTransferCallback
- *
- * The following function is called for each memory
- * block that is transferred from the data source.
- */
-int
-dumpDataTransferCallback(pTW_IMAGEINFO imageInfo,
-			 pTW_IMAGEMEMXFER imageMemXfer,
-			 void *clientData)
-{
-  int flag = 1;
-
-  logData(imageInfo, imageMemXfer, clientData);
-
-  /* Write a flag that says that this is a data packet */
-  fwrite((void *) &flag, sizeof(int), 1, outputFile);
-
-  /* Dump the memory information */
-  fwrite((void *) imageMemXfer, sizeof(TW_IMAGEMEMXFER), 1, outputFile);
-  fwrite((void *) imageMemXfer->Memory.TheMem,
-	 1, imageMemXfer->BytesWritten, outputFile);
-
-  /* Keep going */
-  return TRUE;
-}
-
-/*
- * dumpEndTransferCallback
- *
- * The following function is called at the end of the
- * image transfer.  The caller will be handed
- * the image transfer completion state.  The
- * following values (defined in twain.h) are
- * possible:
- *
- * TWRC_XFERDONE
- *  The transfer completed successfully
- * TWRC_CANCEL
- *  The transfer was completed by the user
- * TWRC_FAILURE
- *  The transfer failed.
- */
-int
-dumpEndTransferCallback(int completionState, int pendingCount, void *clientData)
-{
-  int flag = 0;
-
-  /* Write a flag that says that this is a data packet */
-  fwrite((void *) &flag, sizeof(int), 1, outputFile);
-
-  /* Write the necessary data */
-  fwrite(&completionState, sizeof(int), 1, outputFile);
-  fwrite(&pendingCount, sizeof(int), 1, outputFile);
-
-  /* Only ever transfer a single image */
-  return FALSE;
-}
-
-/*
- * dumpPostTransferCallback
- *
- * This callback function will be called
- * after all possible images have been
- * transferred.
- */
-void
-dumpPostTransferCallback(int pendingCount, void *clientData)
-{
-  char buffer[128];
-
-  /* Shut things down. */
-  if (pendingCount != 0)
-    cancelPendingTransfers(twSession);
-
-  /* This will close the datasource and datasource
-   * manager.  Then the message queue will be shut
-   * down and the run() procedure will finally be
-   * able to finish.
-   */
-  disableDS(twSession);
-  closeDS(twSession);
-  closeDSM(twSession);
-
-  /* Close the dump file */
-  fclose(outputFile);
-
-  /* Tell the user */
-  sprintf(buffer, "Image dumped to file %s\n", DUMP_FILE);
-  gimp_message(buffer);
-
-  /* Post a message to close up the application */
-  twainQuitApplication ();
-}
-
-/*
- * readDumpedImage
- *
- * Get a previously dumped image.
- */
-void readDumpedImage(pTW_SESSION twSession)
-{
-  int moreData;
-  int completionState;
-  int pendingCount;
-
-  TW_IMAGEINFO imageInfo;
-  TW_IMAGEMEMXFER imageMemXfer;
-
-  /* Open our output file... Not settable... Always
-   * write to the root directory.  Simplistic, but
-   * gets the job done.
-   */
-  FILE *inputFile = g_fopen(DUMP_FILE, "rb");
-
-  /*
-   * Inform our application that we are getting ready
-   * to transfer images.
-   */
-  (*twSession->transferFunctions->preTxfrCb)(NULL);
-
-  /* Read the image information */
-  fread((void *) &imageInfo, sizeof(TW_IMAGEINFO), 1, inputFile);
-
-  /* Call the begin transfer callback */
-  if (!(*twSession->transferFunctions->txfrBeginCb)(&imageInfo, twSession->clientData))
-    return;
-
-  /* Read all of the data packets */
-  fread((void *) &moreData, sizeof(int), 1, inputFile);
-  while (moreData) {
-    /* Read the memory information */
-    fread((void *) &imageMemXfer, sizeof(TW_IMAGEMEMXFER), 1, inputFile);
-    imageMemXfer.Memory.TheMem = (TW_MEMREF) g_malloc (imageMemXfer.BytesWritten);
-    fread((void *) imageMemXfer.Memory.TheMem,
-	  1, imageMemXfer.BytesWritten, inputFile);
-
-    /* Call the data transfer callback function */
-    if (!(*twSession->transferFunctions->txfrDataCb)
-	(&imageInfo,
-	 &imageMemXfer,
-	 twSession->clientData))
-      return;
-
-    /* Clean up the memory */
-    g_free (imageMemXfer.Memory.TheMem);
-
-    /* Check for continuation */
-    fread((void *) &moreData, sizeof(int), 1, inputFile);
-  }
-
-  /* Grab the final information */
-  fread(&completionState, sizeof(int), 1, inputFile);
-  fread(&pendingCount, sizeof(int), 1, inputFile);
-
-  if (twSession->transferFunctions->txfrEndCb)
-    (*twSession->transferFunctions->txfrEndCb)(completionState, 0,
-					       twSession->clientData);
-
-  /* Post a message to close up the application */
-  twainQuitApplication ();
-}

plug-ins/twain/tw_dump.h

@@ -1,70 +0,0 @@
-/*
- * TWAIN Plug-in
- * Copyright (C) 1999 Craig Setera
- * Craig Setera <setera@home.com>
- * 03/31/1999
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- *
- * Based on (at least) the following plug-ins:
- * Screenshot
- * GIF
- * Randomize
- *
- * Any suggestions, bug-reports or patches are welcome.
- *
- * This plug-in interfaces to the TWAIN support library in order
- * to capture images from TWAIN devices directly into GIMP images.
- * The plug-in is capable of acquiring the following type of
- * images:
- * - B/W (1 bit images translated to grayscale B/W)
- * - Grayscale up to 16 bits per pixel
- * - RGB up to 16 bits per sample (24, 30, 36, etc.)
- * - Paletted images (both Gray and RGB)
- *
- * Prerequisites:
- *  This plug-in will not compile on anything other than a Win32
- *  platform.  Although the TWAIN documentation implies that there
- *  is TWAIN support available on Macintosh, I neither have a
- *  Macintosh nor the interest in porting this.  If anyone else
- *  has an interest, consult www.twain.org for more information on
- *  interfacing to TWAIN.
- *
- * Known problems:
- * - Multiple image transfers will hang the plug-in.  The current
- *   configuration compiles with a maximum of single image transfers.
- */
-
-/*
- * Revision history
- *  (02/07/99)  v0.1   First working version (internal)
- *  (02/09/99)  v0.2   First release to anyone other than myself
- *  (02/15/99)  v0.3   Added image dump and read support for debugging
- *  (03/31/99)  v0.5   Added support for multi-byte samples and paletted
- *                     images.
- */
-
-#include "tw_platform.h"
-#include "tw_func.h"
-
-void dumpPreTransferCallback(void *clientData);
-int dumpBeginTransferCallback(pTW_IMAGEINFO imageInfo, void *clientData);
-int dumpDataTransferCallback(pTW_IMAGEINFO imageInfo,
-			     pTW_IMAGEMEMXFER imageMemXfer,
-			     void *clientData);
-int dumpEndTransferCallback(int completionState, int pendingCount, void *clientData);
-void dumpPostTransferCallback(int pendingCount, void *clientData);
-void readDumpedImage(pTW_SESSION twSession);
-

plug-ins/twain/tw_func.h

@@ -8,6 +8,10 @@
  * Brion Vibber <brion@pobox.com>
  * 07/22/2004
  *
+ * Added for Win x64 support, changed data source selection.
+ * Jens M. Plonka <jens.plonka@gmx.de>
+ * 11/25/2011
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 3 of the License, or
@@ -57,13 +61,11 @@
  *  (03/31/99)  v0.5   Added support for multi-byte samples and paletted
  *                     images.
  *  (07/23/04)  v0.6   Added Mac OS X support.
+ *  (11/25/11)  v0.7   Added Win x64 support, changed data source selection.
  */
 
 #ifndef _TW_FUNC_H
 #define _TW_FUNC_H
-
-#include "tw_platform.h"
-
 /*
  * Pre-image transfer function type
  *
@@ -108,7 +110,7 @@ typedef int (* TW_TXFR_DATA_CB)(pTW_IMAGEINFO, pTW_IMAGEMEMXFER, void *);
  * TWRC_FAILURE
  *  The transfer failed.
  */
-typedef int (* TW_TXFR_END_CB)(int, int, void *);
+typedef void (* TW_TXFR_END_CB)(int, void *);
 
 /*
  * Post-image transfer callback
@@ -117,7 +119,7 @@ typedef int (* TW_TXFR_END_CB)(int, int, void *);
  * of the possible images have been transferred
  * from the datasource.
  */
-typedef void (* TW_POST_TXFR_CB)(int, void *);
+typedef void (* TW_POST_TXFR_CB)(void *);
 
 /*
  * The following structure defines the
@@ -144,6 +146,11 @@ typedef struct _TXFR_CB_FUNCS {
   TW_POST_TXFR_CB postTxfrCb;
 } TXFR_CB_FUNCS, *pTXFR_CB_FUNCS;
 
+typedef struct _TW_DATA_SOURCE {
+  pTW_IDENTITY dsIdentity;
+  struct _TW_DATA_SOURCE *dsNext;
+} TW_DATA_SOURCE, *pTW_DATA_SOURCE;
+
 /*
  * Data representing a TWAIN
  * application to data source
@@ -184,60 +191,128 @@ typedef struct _TWAIN_SESSION {
    */
   int twainState;
 
+  const gchar *name;
+  /*
+   * The available data sources for this session.
+   * The list will be updated each time the plugin is invoked on query.
+   */
+  struct _TW_DATA_SOURCE *dataSources;
+
 } TW_SESSION, *pTW_SESSION;
 
+#define CB_XFER_PRE(s) if (s->transferFunctions->preTxfrCb) \
+    (*s->transferFunctions->preTxfrCb) (s->clientData);
+
+#define CB_XFER_BEGIN(s, i)   if (s->transferFunctions->txfrBeginCb) \
+    if (!(*s->transferFunctions->txfrBeginCb) (imageInfo, s->clientData)) \
+      return FALSE; \
+  return TRUE;
+
+#define CB_XFER_DATA(s, i, m) (*s->transferFunctions->txfrDataCb) \
+    (i, &m, s->clientData)
+
+#define CB_XFER_END(s)   if (s->transferFunctions->txfrEndCb) \
+    (*s->transferFunctions->txfrEndCb) (s->twRC, s->clientData)
+
+#define CB_XFER_POST(s) if (s->transferFunctions->postTxfrCb) \
+    (*s->transferFunctions->postTxfrCb) (s->clientData)
+
 /* Session structure access
  * macros
  */
-/* #define pAPP_IDENTITY(tw_session) (&(tw_session->appIdentity)) */
-#define APP_IDENTITY(tw_session) (tw_session->appIdentity)
-/* #define pDS_IDENTITY(tw_session) (&(tw_session->dsIdentity)) */
-#define DS_IDENTITY(tw_session) (tw_session->dsIdentity)
+#define APP_IDENTITY(s)   ((s == NULL) ? NULL : s->appIdentity)
+#define DS_IDENTITY(s)    ((s == NULL) ? NULL : s->dsIdentity)
 
 /* State macros... Each expects
  * a Twain Session pointer
  */
-#define TWAIN_LOADED(tw_session) (tw_session->twainState >= 2)
-#define TWAIN_UNLOADED(tw_session) (tw_session->twainState < 2)
-#define DSM_IS_OPEN(tw_session) (tw_session->twainState >= 3)
-#define DSM_IS_CLOSED(tw_session) (tw_session->twainState < 3)
-#define DS_IS_OPEN(tw_session) (tw_session->twainState >= 4)
-#define DS_IS_CLOSED(tw_session) (tw_session->twainState < 4)
-#define DS_IS_ENABLED(tw_session) (tw_session->twainState >= 5)
-#define DS_IS_DISABLED(tw_session) (tw_session->twainState < 5)
+#define TWAIN_LOADED(s)   ((s == NULL) ? FALSE : s->twainState >= 2)
+#define TWAIN_UNLOADED(s) ((s == NULL) ? TRUE  : s->twainState <  2)
+#define DSM_IS_OPEN(s)    ((s == NULL) ? FALSE : s->twainState >= 3)
+#define DSM_IS_CLOSED(s)  ((s == NULL) ? TRUE  : s->twainState <  3)
+#define DS_IS_OPEN(s)     ((s == NULL) ? FALSE : s->twainState >= 4)
+#define DS_IS_CLOSED(s)   ((s == NULL) ? TRUE  : s->twainState <  4)
+#define DS_IS_ENABLED(s)  ((s == NULL) ? FALSE : s->twainState >= 5)
+#define DS_IS_DISABLED(s) ((s == NULL) ? TRUE  : s->twainState <  5)
+
+#define DSM_GET_STATUS(ses, sta)  callDSM(ses->appIdentity, ses->dsIdentity, \
+          DG_CONTROL, DAT_STATUS, MSG_GET, (TW_MEMREF) sta)
+
+#define DSM_OPEN(ses) callDSM(ses->appIdentity, NULL,\
+          DG_CONTROL, DAT_PARENT, MSG_OPENDSM, (TW_MEMREF) &(ses->hwnd))
+
+#define DSM_CLOSE(ses) callDSM(ses->appIdentity, NULL,\
+          DG_CONTROL, DAT_PARENT, MSG_CLOSEDSM, (TW_MEMREF)&(ses->hwnd))
+
+#define DSM_SET_CALLBACK(ses, cb) callDSM(ses->appIdentity, NULL,\
+          DG_CONTROL, DAT_CALLBACK, MSG_REGISTER_CALLBACK, (TW_MEMREF) &cb)
+
+#define DSM_PROCESS_EVENT(ses, ev) callDSM(ses->appIdentity, ses->dsIdentity,\
+          DG_CONTROL, DAT_EVENT, MSG_PROCESSEVENT, (TW_MEMREF) &ev)
+
+#define DSM_GET_PALETTE(ses, d) callDSM(ses->appIdentity, ses->dsIdentity,\
+            DG_IMAGE, DAT_PALETTE8, MSG_GET, (TW_MEMREF) d->paletteData)
+
+#define DSM_SELECT_USER(ses) callDSM(ses->appIdentity, NULL,\
+          DG_CONTROL, DAT_IDENTITY, MSG_USERSELECT, (TW_MEMREF) ses->dsIdentity)
+
+#define DSM_SELECT_DEFAULT(ses) callDSM(ses->appIdentity, NULL,\
+          DG_CONTROL, DAT_IDENTITY, MSG_GETDEFAULT, (TW_MEMREF) ses->dsIdentity)
+
+#define DSM_OPEN_DS(ses) callDSM(ses->appIdentity, NULL,\
+          DG_CONTROL, DAT_IDENTITY, MSG_OPENDS, (TW_MEMREF) ses->dsIdentity)
+
+#define DSM_CLOSE_DS(ses) callDSM(ses->appIdentity, NULL,\
+          DG_CONTROL, DAT_IDENTITY, MSG_CLOSEDS, (TW_MEMREF) ses->dsIdentity)
+
+#define DSM_ENABLE_DS(ses, ui) callDSM(ses->appIdentity, ses->dsIdentity,\
+          DG_CONTROL, DAT_USERINTERFACE, MSG_ENABLEDS, (TW_MEMREF) &ui)
+
+#define DSM_DISABLE_DS(ses, ui) callDSM(ses->appIdentity, ses->dsIdentity,\
+          DG_CONTROL, DAT_USERINTERFACE, MSG_DISABLEDS, (TW_MEMREF) &ui)
+
+#define DSM_GET_IMAGE(ses, i) callDSM(ses->appIdentity, ses->dsIdentity,\
+          DG_IMAGE, DAT_IMAGEINFO, MSG_GET, (TW_MEMREF) i)
+
+#define DSM_CAPABILITY_SET(ses, x) callDSM(ses->appIdentity, ses->dsIdentity,\
+          DG_CONTROL, DAT_CAPABILITY, MSG_SET, (TW_MEMREF) &x)
+
+#define DSM_XFER_START(ses, x) callDSM(ses->appIdentity, ses->dsIdentity,\
+          DG_CONTROL, DAT_SETUPMEMXFER, MSG_GET, (TW_MEMREF) &x)
+
+#define DSM_XFER_GET(ses, x) callDSM(ses->appIdentity, ses->dsIdentity,\
+          DG_IMAGE, DAT_IMAGEMEMXFER, MSG_GET, (TW_MEMREF) &x)
+
+#define DSM_XFER_STOP(ses, x) callDSM(ses->appIdentity, ses->dsIdentity,\
+          DG_CONTROL, DAT_PENDINGXFERS, MSG_ENDXFER, (TW_MEMREF) &x)
+
+#define DSM_XFER_RESET(ses, x) callDSM(ses->appIdentity, ses->dsIdentity,\
+          DG_CONTROL, DAT_PENDINGXFERS, MSG_RESET, (TW_MEMREF) &x)
+
+#define DSM_GET_FIRST_DS(ses, ds) callDSM (ses->appIdentity, NULL, \
+          DG_CONTROL, DAT_IDENTITY, MSG_GETFIRST, (TW_MEMREF) ds);
+
+#define DSM_GET_NEXT_DS(ses, ds) callDSM (ses->appIdentity, NULL, \
+          DG_CONTROL, DAT_IDENTITY, MSG_GETNEXT, (TW_MEMREF) ds);
 
 /* Function declarations */
-char *twainError(int);
-char *currentTwainError(pTW_SESSION);
-int getImage(pTW_SESSION);
-int loadTwainLibrary(pTW_SESSION);
-int unloadTwainLibrary(pTW_SESSION twSession);
-int openDSM(pTW_SESSION);
-int selectDS(pTW_SESSION);
-int selectDefaultDS(pTW_SESSION);
-int openDS(pTW_SESSION);
-int requestImageAcquire(pTW_SESSION, gboolean);
-int disableDS(pTW_SESSION);
-int closeDS(pTW_SESSION);
-int closeDSM(pTW_SESSION);
-void cancelPendingTransfers(pTW_SESSION);
-int scanImage (void);
-
-TW_FIX32 FloatToFIX32(float);
-float FIX32ToFloat(TW_FIX32);
-
-void processTwainMessage(TW_UINT16 message, pTW_SESSION twSession);
-
-pTW_SESSION newSession(pTW_IDENTITY);
-void registerWindowHandle(pTW_SESSION, TW_HANDLE);
-void registerTransferCallbacks(pTW_SESSION, pTXFR_CB_FUNCS, void *);
-void setClientData(pTW_SESSION session, void *clientData);
-pTW_SESSION initializeTwain(void);
-
-#ifdef G_OS_WIN32
-void LogLastWinError(void);
-BOOL InitApplication(HINSTANCE hInstance);
-BOOL InitInstance(HINSTANCE hInstance, int nCmdShow, pTW_SESSION twSession);
-#endif
-
+char *          twainError (int errorCode);
+char *          currentTwainError (pTW_SESSION twSession);
+int             getImage (pTW_SESSION twSession);
+int             loadTwainLibrary (pTW_SESSION twSession);
+void            unloadTwainLibrary (pTW_SESSION twSession);
+int             openDSM (pTW_SESSION twSession);
+int             selectDS (pTW_SESSION twSession);
+int             openDS (pTW_SESSION twSession);
+int             requestImageAcquire (pTW_SESSION twSession, gboolean showUI);
+void            disableDS (pTW_SESSION twSession);
+void            closeDS (pTW_SESSION twSession);
+void            closeDSM (pTW_SESSION twSession);
+void            cancelPendingTransfers (pTW_SESSION twSession);
+void            processTwainMessage (TW_UINT16 message, pTW_SESSION twSession);
+pTW_SESSION     newSession (pTW_IDENTITY twSession);
+pTW_DATA_SOURCE get_available_ds (pTW_SESSION twSession);
+int             adjust_selected_data_source (pTW_SESSION twSession);
+void            set_ds_capabilities (pTW_SESSION twSession);
+void            set_ds_capability (pTW_SESSION twSession, TW_UINT16 cap, TW_UINT16 type, TW_UINT32 value);
 #endif /* _TW_FUNC_H */

plug-ins/twain/tw_local.h

@@ -8,6 +8,10 @@
  * Brion Vibber <brion@pobox.com>
  * 07/22/2004
  *
+ * Added for Win x64 support, changed data source selection.
+ * Jens M. Plonka <jens.plonka@gmx.de>
+ * 11/25/2011
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 3 of the License, or
@@ -22,27 +26,72 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+/*
+ * Revision history
+ *  (02/07/99)  v0.1   First working version (internal)
+ *  (02/09/99)  v0.2   First release to anyone other than myself
+ *  (02/15/99)  v0.3   Added image dump and read support for debugging
+ *  (03/31/99)  v0.5   Added support for multi-byte samples and paletted
+ *                     images.
+ *  (07/23/04)  v0.6   Added Mac OS X support.
+ *  (11/25/11)  v0.7   Added Win x64 support, changed data source selection.
+ */
+
 #ifndef _TW_LOCAL_H
 #define _TW_LOCAL_H
 
-#include "tw_func.h"
+/*
+ * Plug-in Parameter definitions
+ */
+#define NUMBER_IN_ARGS 1
+#define IN_ARGS \
+    { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" }
+#define NUMBER_OUT_ARGS 2
+#define OUT_ARGS \
+    { GIMP_PDB_INT32, "image-count", "Number of acquired images" }, \
+    { GIMP_PDB_INT32ARRAY, "image-ids", "Array of acquired image identifiers" }
 
 /* Functions which the platform-independent code will call */
+TW_UINT16 callDSM (
+  pTW_IDENTITY pOrigin,
+  pTW_IDENTITY pDest,
+  TW_UINT32    DG,
+  TW_UINT16    DAT,
+  TW_UINT16    MSG,
+  TW_MEMREF    pData);
 
-TW_UINT16 callDSM(pTW_IDENTITY, pTW_IDENTITY,
-		  TW_UINT32, TW_UINT16,
-		  TW_UINT16, TW_MEMREF);
-
-int twainIsAvailable(void);
-void twainQuitApplication (void);
-gboolean twainSetupCallback (pTW_SESSION twSession);
+int       twainIsAvailable(void);
+void      twainQuitApplication (void);
+gboolean  twainSetupCallback (pTW_SESSION twSession);
 
 TW_HANDLE twainAllocHandle(size_t size);
 TW_MEMREF twainLockHandle (TW_HANDLE handle);
-void twainUnlockHandle (TW_HANDLE handle);
-void twainFreeHandle (TW_HANDLE handle);
+void      twainUnlockHandle (TW_HANDLE handle);
+void      twainFreeHandle (TW_HANDLE handle);
 
-int twainMain (void);
-int scanImage (void);
+int       twainMain (const gchar *name);
+int       scanImage (void);
+pTW_SESSION initializeTwain (void);
 
-#endif
+void      preTransferCallback (void *);
+int       beginTransferCallback (pTW_IMAGEINFO, void *);
+int       dataTransferCallback (pTW_IMAGEINFO, pTW_IMAGEMEMXFER, void *);
+void      endTransferCallback (int, void *);
+void      postTransferCallback (void *);
+void      register_menu (pTW_IDENTITY dsIdentity);
+void      register_scanner_menus (void);
+
+/* Data used to carry data between each
+ * of the callback function calls.
+ */
+typedef struct
+{
+  gint32 image_id;
+  gint32 layer_id;
+  GimpPixelRgn pixel_rgn;
+  GimpDrawable *drawable;
+  pTW_PALETTE8 paletteData;
+  int totalPixels;
+  int completedPixels;
+} ClientDataStruct, *pClientDataStruct;
+#endif /* _TW_LOCAL_H */

plug-ins/twain/tw_platform.h

@@ -4,6 +4,10 @@
  * Craig Setera <setera@home.com>
  * 03/31/1999
  *
+ * Added for Win x64 support, changed data source selection
+ * Jens M. Plonka <jens.plonka@gmx.de>
+ * 11/25/2011
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 3 of the License, or
@@ -18,20 +22,58 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+/*
+ * Revision history
+ *  (02/07/99)  v0.1   First working version (internal)
+ *  (02/09/99)  v0.2   First release to anyone other than myself
+ *  (02/15/99)  v0.3   Added image dump and read support for debugging
+ *  (03/31/99)  v0.5   Added support for multi-byte samples and paletted
+ *                     images.
+ *  (07/23/04)  v0.6   Added Mac OS X support.
+ *  (11/25/11)  v0.7   Added Win x64 support, changed data source selection.
+ */
+
 #ifndef _TW_PLATFORM_H
-#define _TW_PLATFORM_H
+  #define _TW_PLATFORM_H
 
-#include <windows.h>
-#include "twain.h"
+    /* Coding style violation: Don't include headers in headers */
+    #include <windows.h>
+    /* Coding style violation: Don't include headers in headers */
+    #include "twain.h"
 
-/* The DLL to be loaded for TWAIN support */
-#define TWAIN_DLL_NAME "TWAIN_32.DLL"
-#define DEBUG_LOGFILE "c:\\twain.log"
-#define DUMP_FILE "C:\\TWAINCAP.BIN"
-#define DUMP_NAME "DTWAIN.EXE"
-#define READDUMP_NAME "RTWAIN.EXE"
+    /* The DLL to be loaded for TWAIN support */
+    #ifdef TWH_64BIT
+      #define TWAIN_DLL_NAME "TWAINDSM.DLL"
+    #else
+      #define TWAIN_DLL_NAME "TWAIN_32.DLL"
+    #endif /* TWH_64BIT */
 
-/* Windows uses separate entry point */
-#define TWAIN_ALTERNATE_MAIN
+  /* Windows uses separate entry point */
+  #define TWAIN_ALTERNATE_MAIN
 
+  /*
+   * Plug-in Definitions
+   */
+  #define STRINGIFY(x) #x
+  #define TOSTRING(x) STRINGIFY(x)
+
+  #define PRODUCT_FAMILY      "GNU"
+  #define PRODUCT_NAME        "GIMP"
+  #define PLUG_IN_NAME        "TWAIN"
+  #define PLUG_IN_DESCRIPTION N_("Capture an image from a TWAIN datasource")
+  #define PLUG_IN_HELP        "This plug-in will capture an image from a TWAIN datasource.\n" \
+                              "Recent changes:\n" \
+                              "  - Support of Win 64 Bit (requires twaindsm.dll from twain.org)\n" \
+                              "  - Fixed bug while scanning multiple images\n" \
+                              "  - Added easy Scanner access"
+  #define PLUG_IN_AUTHOR      "Jens Plonka (jens.plonka@gmx.de)"
+  #define PLUG_IN_COPYRIGHT   "Craig Setera"
+  #define PLUG_IN_MAJOR       0
+  #define PLUG_IN_MINOR       7
+  #define PLUG_IN_DATE        "11/25/2011"
+  #define PLUG_IN_VERSION     "v" TOSTRING(PLUG_IN_MAJOR) "." TOSTRING(PLUG_IN_MINOR) " (" PLUG_IN_DATE ")"
+  #define PLUG_IN_HINT        PRODUCT_NAME " " PLUG_IN_NAME " v" TOSTRING(PLUG_IN_MAJOR) "." TOSTRING(PLUG_IN_MINOR)
+
+  #define MID_SELECT          "twain-acquire"
+  #define MP_SELECT           "<Image>/File/Create/Acquire"
 #endif

plug-ins/twain/tw_util.c

@@ -8,6 +8,10 @@
  * Brion Vibber <brion@pobox.com>
  * 07/22/2004
  *
+ * Added for Win x64 support, changed data source selection.
+ * Jens M. Plonka <jens.plonka@gmx.de>
+ * 11/25/2011
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 3 of the License, or
@@ -57,6 +61,7 @@
  *  (03/31/99)  v0.5   Added support for multi-byte samples and paletted
  *                     images.
  *  (07/23/04)  v0.6   Added Mac OS X support.
+ *  (11/25/11)  v0.7   Added Win x64 support, changed data source selection.
  */
 
 #include "config.h"
@@ -68,103 +73,21 @@
 #include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
-#include <time.h>
 
+#include "tw_platform.h"
 #include "tw_util.h"
-#ifdef _DEBUG
-#include "tw_func.h"
-FILE *logFile = NULL;
-#endif
-
-#ifdef _DEBUG
 
 /*
- * LogMessage
+ * log_message
  */
 void
-LogMessage(char *format, ...)
+log_message (char *format, ...)
 {
   va_list args;
-  time_t time_of_day;
-  char *ctime_string;
 
-  /* Open the log file as necessary */
-  if (!logFile)
-    logFile = g_fopen(DEBUG_LOGFILE, "w");
-
-  time_of_day = time(NULL);
-  ctime_string = ctime(&time_of_day);
-  ctime_string[19] = '\0';
-
-  fprintf(logFile, "[%s] ", (ctime_string + 11));
-  va_start(args, format);
-  vfprintf(logFile, format, args);
-  fflush(logFile);
-  va_end(args);
+  va_start (args, format);
+  g_message (format, args);
+  va_end (args);
+  return;
 }
 
-void
-logBegin(pTW_IMAGEINFO imageInfo, void *clientData)
-{
-  int i;
-  char buffer[256];
-
-  LogMessage("\n");
-  LogMessage("*************************************\n");
-  LogMessage("\n");
-  LogMessage("Image transfer begin:\n");
-  /*	LogMessage("\tClient data: %s\n", (char *) clientData); */
-
-  /* Log the image information */
-  LogMessage("Image information:\n");
-  LogMessage("\tXResolution: %f\n", FIX32ToFloat(imageInfo->XResolution));
-  LogMessage("\tYResolution: %f\n", FIX32ToFloat(imageInfo->YResolution));
-  LogMessage("\tImageWidth: %d\n", imageInfo->ImageWidth);
-  LogMessage("\tImageLength: %d\n", imageInfo->ImageLength);
-  LogMessage("\tSamplesPerPixel: %d\n", imageInfo->SamplesPerPixel);
-  sprintf(buffer, "\tBitsPerSample: {");
-  for (i = 0; i < 8; i++) {
-    if (imageInfo->BitsPerSample[i])
-      strcat(buffer, "1");
-    else
-      strcat(buffer, "0");
-
-    if (i != 7)
-      strcat(buffer, ",");
-  }
-  LogMessage("%s}\n", buffer);
-
-  LogMessage("\tBitsPerPixel: %d\n", imageInfo->BitsPerPixel);
-  LogMessage("\tPlanar: %s\n", (imageInfo->Planar ? "TRUE" : "FALSE"));
-  LogMessage("\tPixelType: %d\n", imageInfo->PixelType);
-  /* Compression */
-
-}
-
-void
-logData(pTW_IMAGEINFO imageInfo,
-	pTW_IMAGEMEMXFER imageMemXfer,
-	void *clientData)
-{
-  LogMessage("Image transfer callback called:\n");
-  LogMessage("\tClient data: %s\n", (char *) clientData);
-  LogMessage("Memory block transferred:\n");
-  LogMessage("\tBytesPerRow = %d\n", imageMemXfer->BytesPerRow);
-  LogMessage("\tColumns = %d\n", imageMemXfer->Columns);
-  LogMessage("\tRows = %d\n", imageMemXfer->Rows);
-  LogMessage("\tXOffset = %d\n", imageMemXfer->XOffset);
-  LogMessage("\tYOffset = %d\n", imageMemXfer->YOffset);
-  LogMessage("\tBytesWritten = %d\n", imageMemXfer->BytesWritten);
-}
-
-#else
-
-/*
- * LogMessage
- */
-void
-LogMessage(char *format, ...)
-{
-}
-
-#endif /* DEBUG */

plug-ins/twain/tw_util.h

@@ -8,6 +8,10 @@
  * Brion Vibber <brion@pobox.com>
  * 07/22/2004
  *
+ * Added for Win x64 support, changed data source selection.
+ * Jens M. Plonka <jens.plonka@gmx.de>
+ * 11/25/2011
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 3 of the License, or
@@ -57,17 +61,13 @@
  *  (03/31/99)  v0.5   Added support for multi-byte samples and paletted
  *                     images.
  *  (07/23/04)  v0.6   Added Mac OS X support.
+ *  (11/25/11)  v0.7   Added Win x64 support, changed data source selection.
  */
 #ifndef __TW_UTIL_H
 #define __TW_UTIL_H
 
-#include "tw_platform.h"
+#define FIX32_TO_FLOAT(f) ((float) f.Whole + (float) f.Frac / 65536.0f)
 
-void LogMessage(char *, ...);
-
-#ifdef _DEBUG
-void logBegin(pTW_IMAGEINFO, void *);
-void logData(pTW_IMAGEINFO, pTW_IMAGEMEMXFER, void *);
-#endif
+void log_message (char *format, ...);
 
 #endif /* __TW_UTIL_H */

plug-ins/twain/tw_win.c

@@ -8,6 +8,10 @@
  * Brion Vibber <brion@pobox.com>
  * 07/22/2004
  *
+ * Added for Win x64 support, changed data source selection.
+ * Jens M. Plonka <jens.plonka@gmx.de>
+ * 11/25/2011
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 3 of the License, or
@@ -22,6 +26,17 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+/*
+ * Revision history
+ *  (02/07/99)  v0.1   First working version (internal)
+ *  (02/09/99)  v0.2   First release to anyone other than myself
+ *  (02/15/99)  v0.3   Added image dump and read support for debugging
+ *  (03/31/99)  v0.5   Added support for multi-byte samples and paletted
+ *                     images.
+ *  (07/23/04)  v0.6   Added Mac OS X support.
+ *  (11/25/11)  v0.7   Added Win x64 support, changed data source selection.
+ */
+
 /*
  * Windows platform-specific code
  */
@@ -34,46 +49,33 @@
 #include "tw_func.h"
 #include "tw_util.h"
 #include "tw_local.h"
+#include "tw_win.h"
 
-LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
-
-int twainMessageLoop(pTW_SESSION);
-int TwainProcessMessage(LPMSG lpMsg, pTW_SESSION twSession);
-
-extern GimpPlugInInfo PLUG_IN_INFO;
-extern pTW_SESSION initializeTwain ();
-#ifdef _DEBUG
-extern void setRunMode(char *argv[]);
-#endif
-
-
-#define APP_NAME "TWAIN"
-#define SHOW_WINDOW 0
-#define WM_TRANSFER_IMAGE (WM_USER + 100)
+#define DLL_NOT_FOUND "Can't load library \"" TWAIN_DLL_NAME "\"!\nPlease install 'TWAIN Data Source Manager' from www.twain.org.\n" 
 
 /* main bits */
-static HWND        hwnd = NULL;
-static HINSTANCE   hInst = NULL;
+static HWND         hwnd  = NULL;
+static HINSTANCE    hInst = NULL;
 
 /* Storage for the DLL handle */
-static HINSTANCE hDLL = NULL;
+static HINSTANCE    hDLL  = NULL;
 
 /* Storage for the entry point into the DSM */
 static DSMENTRYPROC dsmEntryPoint = NULL;
 
-
 /*
  * callDSM
  *
  * Call the specified function on the data source manager.
  */
 TW_UINT16
-callDSM(pTW_IDENTITY pOrigin,
-	pTW_IDENTITY pDest,
-	TW_UINT32    DG,
-	TW_UINT16    DAT,
-	TW_UINT16    MSG,
-	TW_MEMREF    pData)
+callDSM (
+    pTW_IDENTITY pOrigin,
+    pTW_IDENTITY pDest,
+    TW_UINT32    DG,
+    TW_UINT16    DAT,
+    TW_UINT16    MSG,
+    TW_MEMREF    pData)
 {
   /* Call the function */
   return (*dsmEntryPoint) (pOrigin, pDest, DG, DAT, MSG, pData);
@@ -85,22 +87,27 @@ callDSM(pTW_IDENTITY pOrigin,
  * Return boolean indicating whether TWAIN is available
  */
 int
-twainIsAvailable(void)
+twainIsAvailable (void)
 {
   /* Already loaded? */
-  if (dsmEntryPoint) {
-    return TRUE;
-  }
-
-  /* Attempt to load the library */
-  hDLL = LoadLibrary(TWAIN_DLL_NAME);
-  if (hDLL == NULL)
-    return FALSE;
-
-  /* Look up the entry point for use */
-  dsmEntryPoint = (DSMENTRYPROC) GetProcAddress(hDLL, "DSM_Entry");
   if (dsmEntryPoint == NULL)
-    return FALSE;
+  {
+    /* Attempt to load the library */
+    hDLL = LoadLibrary (TWAIN_DLL_NAME);
+    if (hDLL == NULL)
+    {
+      g_message (DLL_NOT_FOUND);
+      return FALSE;
+    }
+
+    /* Look up the entry point for use */
+    dsmEntryPoint = (DSMENTRYPROC) GetProcAddress (hDLL, "DSM_Entry");
+    if (dsmEntryPoint == NULL)
+    {
+      g_message ("Lirary has no DSM Entry point.\n");
+      return FALSE;
+    }
+  }
 
   return TRUE;
 }
@@ -108,7 +115,7 @@ twainIsAvailable(void)
 TW_HANDLE
 twainAllocHandle (size_t size)
 {
-  return GlobalAlloc(GHND, size);
+  return GlobalAlloc (GHND, size);
 }
 
 TW_MEMREF
@@ -141,26 +148,27 @@ twainSetupCallback (pTW_SESSION twSession)
  *
  * Unload the TWAIN dynamic link library
  */
-int
-unloadTwainLibrary(pTW_SESSION twSession)
+void
+unloadTwainLibrary (pTW_SESSION twSession)
 {
   /* Explicitly free the SM library */
-  if (hDLL) {
-    FreeLibrary(hDLL);
+  if (hDLL)
+  {
+    FreeLibrary (hDLL);
     hDLL=NULL;
   }
 
-  /* the data source id will no longer be valid after
-   * twain is killed.  If the id is left around the
-   * data source can not be found or opened
-	 */
-  DS_IDENTITY(twSession)->Id = 0;
+  if (twSession != NULL)
+  {
+    /* the data source id will no longer be valid after
+     * twain is killed.  If the id is left around the
+     * data source can not be found or opened
+     */
+    twSession->dsIdentity->Id = 0;
 
-	/* We are now back at state 1 */
-  twSession->twainState = 1;
-  LogMessage("Source Manager successfully closed\n");
-
-  return TRUE;
+	/* We are now back at state 0 */
+    twSession->twainState = 0;
+  }
 }
 
 /*
@@ -170,32 +178,32 @@ unloadTwainLibrary(pTW_SESSION twSession)
  * Returns FALSE if the application should skip processing of this message
  */
 int
-TwainProcessMessage(LPMSG lpMsg, pTW_SESSION twSession)
+TwainProcessMessage (LPMSG lpMsg, pTW_SESSION twSession)
 {
-  TW_EVENT   twEvent;
+  TW_EVENT twEvent;
 
   twSession->twRC = TWRC_NOTDSEVENT;
 
   /* Only ask Source Manager to process event if there is a Source connected. */
-  if (DSM_IS_OPEN(twSession) && DS_IS_OPEN(twSession)) {
-		/*
-		 * A Source provides a modeless dialog box as its user interface.
-		 * The following call relays Windows messages down to the Source's
-		 * UI that were intended for its dialog box.  It also retrieves TWAIN
-		 * messages sent from the Source to our Application.
-		 */
-		twEvent.pEvent = (TW_MEMREF) lpMsg;
-		twSession->twRC = callDSM(APP_IDENTITY(twSession), DS_IDENTITY(twSession),
-			DG_CONTROL, DAT_EVENT, MSG_PROCESSEVENT,
-			(TW_MEMREF) &twEvent);
+  if (DS_IS_OPEN(twSession))
+  {
+    /*
+     * A Source provides a modeless dialog box as its user interface.
+     * The following call relays Windows messages down to the Source's
+     * UI that were intended for its dialog box. It also retrieves TWAIN
+     * messages sent from the Source to our Application.
+     */
+    twEvent.pEvent = (TW_MEMREF) lpMsg;
+    twSession->twRC = DSM_PROCESS_EVENT(twSession, twEvent);
 
-		/* Check the return code */
-		if (twSession->twRC == TWRC_NOTDSEVENT) {
-			return FALSE;
-		}
+    /* Check the return code */
+    if (twSession->twRC == TWRC_NOTDSEVENT)
+    {
+      return FALSE;
+    }
 
-		/* Process the message as necessary */
-		processTwainMessage(twEvent.TWMessage, twSession);
+    /* Process the message as necessary */
+    processTwainMessage (twEvent.TWMessage, twSession);
   }
 
   /* tell the caller what happened */
@@ -210,14 +218,16 @@ TwainProcessMessage(LPMSG lpMsg, pTW_SESSION twSession)
  * the application exits.
  */
 int
-twainMessageLoop(pTW_SESSION twSession)
+twainMessageLoop (pTW_SESSION twSession)
 {
   MSG msg;
 
-  while (GetMessage(&msg, NULL, 0, 0)) {
-    if (DS_IS_CLOSED(twSession) || !TwainProcessMessage(&msg, twSession)) {
-      TranslateMessage((LPMSG)&msg);
-      DispatchMessage(&msg);
+  while (GetMessage(&msg, NULL, 0, 0))
+  {
+    if (DS_IS_CLOSED(twSession) || !TwainProcessMessage (&msg, twSession))
+    {
+      TranslateMessage ((LPMSG) &msg);
+      DispatchMessage (&msg);
     }
   }
 
@@ -231,29 +241,30 @@ twainMessageLoop(pTW_SESSION twSession)
  * GetLastError.
  */
 void
-LogLastWinError(void)
+LogLastWinError (void)
 {
-	LPVOID lpMsgBuf;
+  LPVOID lpMsgBuf;
 
-	FormatMessage(
-		FORMAT_MESSAGE_ALLOCATE_BUFFER |
-		FORMAT_MESSAGE_FROM_SYSTEM |
-		FORMAT_MESSAGE_IGNORE_INSERTS,
-		NULL,
-		GetLastError(),
-		MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), /* Default language */
-		(LPTSTR) &lpMsgBuf,
-		0,
-		NULL
-		);
+  FormatMessage (
+      FORMAT_MESSAGE_ALLOCATE_BUFFER |
+      FORMAT_MESSAGE_FROM_SYSTEM |
+      FORMAT_MESSAGE_IGNORE_INSERTS,
+      NULL,
+      GetLastError (),
+      MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), /* Default language */
+      (LPTSTR) &lpMsgBuf,
+      0,
+      NULL
+  );
 
-	LogMessage("%s\n", lpMsgBuf);
+  g_message ("%s\n", (LPTSTR) lpMsgBuf);
 
-	/* Free the buffer. */
-	LocalFree( lpMsgBuf );
+  /* Free the buffer. */
+  LocalFree ( lpMsgBuf );
 }
 
-void twainQuitApplication ()
+void
+twainQuitApplication (void)
 {
   PostQuitMessage (0);
 }
@@ -273,10 +284,11 @@ void twainQuitApplication ()
  * datasource.
  */
 int APIENTRY
-WinMain(HINSTANCE hInstance,
-	HINSTANCE hPrevInstance,
-	LPSTR     lpCmdLine,
-	int       nCmdShow)
+WinMain (
+    HINSTANCE hInstance,
+    HINSTANCE hPrevInstance,
+    LPSTR     lpCmdLine,
+    int       nCmdShow)
 {
 
   /*
@@ -290,18 +302,11 @@ WinMain(HINSTANCE hInstance,
    */
   hInst = hInstance;
 
-#ifdef _DEBUG
-  /* When in debug version, we allow different run modes...
-   * make sure that it is correctly set.
-   */
-  setRunMode(__argv);
-#endif /* _DEBUG */
-
   /*
    * Now, call gimp_main... This is what the MAIN() macro
    * would usually do.
    */
-  return gimp_main(&PLUG_IN_INFO, __argc, __argv);
+  return gimp_main (&PLUG_IN_INFO, __argc, __argv);
 }
 
 /*
@@ -309,20 +314,14 @@ WinMain(HINSTANCE hInstance,
  *
  * allow to build as console app as well
  */
-int main (int argc, char *argv[])
+int
+main (int argc, char *argv[])
 {
-#ifdef _DEBUG
-  /* When in debug version, we allow different run modes...
-   * make sure that it is correctly set.
-   */
-  setRunMode(__argv);
-#endif /* _DEBUG */
-
   /*
    * Now, call gimp_main... This is what the MAIN() macro
    * would usually do.
    */
-  return gimp_main(&PLUG_IN_INFO, __argc, __argv);
+  return gimp_main (&PLUG_IN_INFO, __argc, __argv);
 }
 
 /*
@@ -331,7 +330,7 @@ int main (int argc, char *argv[])
  * Initialize window data and register the window class
  */
 BOOL
-InitApplication(HINSTANCE hInstance)
+InitApplication (HINSTANCE hInstance)
 {
   WNDCLASS wc;
   BOOL retValue;
@@ -345,18 +344,20 @@ InitApplication(HINSTANCE hInstance)
   wc.cbClsExtra = 0;
   wc.cbWndExtra = 0;
   wc.hInstance = hInstance;
-  wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
-  wc.hCursor = LoadCursor(NULL, IDC_ARROW);
+  wc.hIcon = LoadIcon (NULL, IDI_APPLICATION);
+  wc.hCursor = LoadCursor (NULL, IDC_ARROW);
   wc.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
-  wc.lpszClassName = APP_NAME;
+  wc.lpszClassName = PLUG_IN_NAME;
   wc.lpszMenuName = NULL;
 
   /* Register the window class and stash success/failure code. */
-  retValue = RegisterClass(&wc);
+  retValue = RegisterClass (&wc);
 
   /* Log error */
   if (!retValue)
-    LogLastWinError();
+  {
+    LogLastWinError ();
+  }
 
   return retValue;
 }
@@ -368,27 +369,29 @@ InitApplication(HINSTANCE hInstance)
  * interface with the TWAIN datasource.
  */
 BOOL
-InitInstance(HINSTANCE hInstance, int nCmdShow, pTW_SESSION twSession)
+InitInstance (HINSTANCE hInstance, int nCmdShow, pTW_SESSION twSession)
 {
   /* Create our window */
-  hwnd = CreateWindow(APP_NAME, APP_NAME, WS_OVERLAPPEDWINDOW,
-		      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0,
-		      NULL, NULL, hInstance, NULL);
+  hwnd = CreateWindow (PLUG_IN_NAME, PLUG_IN_NAME, WS_OVERLAPPEDWINDOW,
+      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0,
+      NULL, NULL, hInstance, NULL);
 
-  if (!hwnd) {
+  if (!hwnd)
+  {
     return (FALSE);
   }
 
   /* Register our window handle with the TWAIN
    * support.
    */
-  registerWindowHandle(twSession, hwnd);
+  twSession->hwnd = hwnd;
 
   /* Schedule the image transfer by posting a message */
-  PostMessage(hwnd, WM_TRANSFER_IMAGE, 0, 0);
+  PostMessage (hwnd, WM_TRANSFER_IMAGE, 0, 0);
 
-  ShowWindow(hwnd, nCmdShow);
-  UpdateWindow(hwnd);
+  ShowWindow (hwnd, nCmdShow);
+
+  UpdateWindow (hwnd);
 
   return TRUE;
 }
@@ -403,25 +406,31 @@ InitInstance(HINSTANCE hInstance, int nCmdShow, pTW_SESSION twSession)
  * operate.
  */
 int
-twainMain()
+twainMain (const gchar *name)
 {
   /* Initialize the twain information */
   pTW_SESSION twSession = initializeTwain();
 
+  twSession->name = name;
+
   /* Perform instance initialization */
-  if (!InitApplication(hInst))
+  if (!InitApplication (hInst))
+  {
     return (FALSE);
+  }
 
   /* Perform application initialization */
-  if (!InitInstance(hInst, SHOW_WINDOW, twSession))
+  if (!InitInstance (hInst, SHOW_WINDOW, twSession))
+  {
     return (FALSE);
+  }
 
   /*
    * Call the main message processing loop...
    * This call will not return until the application
    * exits.
    */
-  return twainMessageLoop(twSession);
+  return twainMessageLoop (twSession);
 }
 
 /*
@@ -430,23 +439,23 @@ twainMain()
  * Process window message for the main window.
  */
 LRESULT CALLBACK
-WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
+WndProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 {
-  switch (message) {
+  switch (message)
+  {
+    case WM_TRANSFER_IMAGE:
+      /* Get an image */
+      scanImage ();
+      break;
 
-  case WM_TRANSFER_IMAGE:
-    /* Get an image */
-    scanImage ();
-    break;
+    case WM_DESTROY:
+      PostQuitMessage (0);
+      break;
 
-  case WM_DESTROY:
-    LogMessage("Exiting application\n");
-    PostQuitMessage(0);
-    break;
-
-  default:
-    return (DefWindowProc(hWnd, message, wParam, lParam));
+    default:
+      return (DefWindowProc (hWnd, message, wParam, lParam));
   }
+
   return 0;
 }
 

plug-ins/twain/tw_win.h

@@ -0,0 +1,69 @@
+/*
+ * TWAIN Plug-in
+ * Copyright (C) 1999 Craig Setera
+ * Craig Setera <setera@home.com>
+ * 03/31/1999
+ *
+ * Updated for Mac OS X support
+ * Brion Vibber <brion@pobox.com>
+ * 07/22/2004
+ *
+ * Added for Win x64 support, changed data source selection.
+ * Jens M. Plonka <jens.plonka@gmx.de>
+ * 11/25/2011
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Revision history
+ *  (02/07/99)  v0.1   First working version (internal)
+ *  (02/09/99)  v0.2   First release to anyone other than myself
+ *  (02/15/99)  v0.3   Added image dump and read support for debugging
+ *  (03/31/99)  v0.5   Added support for multi-byte samples and paletted
+ *                     images.
+ *  (07/23/04)  v0.6   Added Mac OS X support.
+ *  (11/25/11)  v0.7   Added Win x64 support, changed data source selection.
+ */
+
+/*
+ * Windows platform-specific code
+ */
+#ifndef _TW_WIN_H
+#define _TW_WIN_H
+
+#define SHOW_WINDOW 0
+#define WM_TRANSFER_IMAGE (WM_USER + 100)
+
+TW_UINT16 callDSM (
+  pTW_IDENTITY pOrigin,
+  pTW_IDENTITY pDest,
+  TW_UINT32    DG,
+  TW_UINT16    DAT,
+  TW_UINT16    MSG,
+  TW_MEMREF    pData);
+
+extern GimpPlugInInfo PLUG_IN_INFO;
+
+LRESULT CALLBACK WndProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
+int     twainMessageLoop (pTW_SESSION);
+int     TwainProcessMessage (LPMSG lpMsg, pTW_SESSION twSession);
+void    LogLastWinError (void);
+void    twainQuitApplication (void);
+BOOL    InitApplication (HINSTANCE hInstance);
+BOOL    InitInstance (HINSTANCE hInstance, int nCmdShow, pTW_SESSION twSession);
+int     twainMain (const gchar *name);
+extern  pTW_SESSION initializeTwain (void);
+
+#endif /* _TW_WIN_H */