From cf94e585f54cee1b0e9f91290cf5f26525106e3c Mon Sep 17 00:00:00 2001
From: Thierry HUCHARD <thierry@ordissimo.com>
Date: Sun, 15 Mar 2020 16:57:14 +0100
Subject: [PATCH] Full definition of ADF support.

---
 backend/escl/escl.h              |  1 +
 backend/escl/escl_capabilities.c |  9 +++++++++
 backend/escl/escl_newjob.c       | 34 +++++++++++++++-----------------
 3 files changed, 26 insertions(+), 18 deletions(-)

diff --git a/backend/escl/escl.h b/backend/escl/escl.h
index 8df47e861..79ca2b594 100644
--- a/backend/escl/escl.h
+++ b/backend/escl/escl.h
@@ -124,6 +124,7 @@ typedef struct capst
     int RiskyRightMargin;
     int RiskyTopMargin;
     int RiskyBottomMargin;
+    int duplex;
 } caps_t;
 
 typedef struct capabilities
diff --git a/backend/escl/escl_capabilities.c b/backend/escl/escl_capabilities.c
index b7b9b3791..8789b3447 100644
--- a/backend/escl/escl_capabilities.c
+++ b/backend/escl/escl_capabilities.c
@@ -327,12 +327,21 @@ print_xml_c(xmlNode *node, capabilities_t *scanner, int type)
            scanner->Sources = char_to_array(scanner->Sources, &scanner->SourcesSize, (SANE_String_Const)"Platen", 0);
 	   scanner->source = PLATEN;
            print_xml_c(node->children, scanner, PLATEN);
+	   scanner->caps[scanner->source].duplex = 0;
 	}
 	else if (!strcmp((const char *)node->name, "AdfSimplexInputCaps")) {
            scanner->Sources = char_to_array(scanner->Sources, &scanner->SourcesSize, (SANE_String_Const)"Feeder", 0);
 	   if (scanner->source == -1) scanner->source = ADFSIMPLEX;
            print_xml_c(node->children, scanner, ADFSIMPLEX);
+	   scanner->caps[scanner->source].duplex = 0;
 	}
+	else if (!strcmp((const char *)node->name, "AdfDuplexInputCaps")) {
+           scanner->Sources = char_to_array(scanner->Sources, &scanner->SourcesSize, (SANE_String_Const)"Feeder", 0);
+	   if (scanner->source == -1) scanner->source = ADFDUPLEX;
+           print_xml_c(node->children, scanner, ADFDUPLEX);
+	   scanner->caps[scanner->source].duplex = 1;
+	}
+	AdfDuplexInputCap
 	else
            print_xml_c(node->children, scanner, type);
         node = node->next;
diff --git a/backend/escl/escl_newjob.c b/backend/escl/escl_newjob.c
index 20311ccf4..7049326a2 100644
--- a/backend/escl/escl_newjob.c
+++ b/backend/escl/escl_newjob.c
@@ -69,17 +69,10 @@ static const char settings[] =
     "   <scan:XResolution>%d</scan:XResolution>" \
     "   <scan:YResolution>%d</scan:YResolution>" \
     "   <pwg:InputSource>%s</pwg:InputSource>" \
+    "   <scan:InputSource>i%s</scan:InputSource>" \
+    "%s" \
     "</scan:ScanSettings>";
 
-static char formatExtJPEG[] =
-    "   <scan:DocumentFormatExt>image/jpeg</scan:DocumentFormatExt>";
-
-static char formatExtPNG[] =
-    "   <scan:DocumentFormatExt>image/png</scan:DocumentFormatExt>";
-
-static char formatExtTIFF[] =
-    "   <scan:DocumentFormatExt>image/tiff</scan:DocumentFormatExt>";
-
 /**
  * \fn static size_t download_callback(void *str, size_t size, size_t nmemb, void *userp)
  * \brief Callback function that stocks in memory the content of the 'job'. Example below :
@@ -144,6 +137,7 @@ escl_newjob (capabilities_t *scanner, SANE_String_Const name, SANE_Status *statu
     char *temporary = NULL;
     char *f_ext = "";
     char *format_ext = NULL;
+    char duplex_mode[1024] = { 0 };
 
     *status = SANE_STATUS_GOOD;
     if (name == NULL || scanner == NULL) {
@@ -167,17 +161,19 @@ escl_newjob (capabilities_t *scanner, SANE_String_Const name, SANE_Status *statu
     curl_handle = curl_easy_init();
     if (scanner->caps[scanner->source].format_ext == 1)
     {
-       if (!strcmp(scanner->caps[scanner->source].default_format, "image/jpeg"))
-          format_ext = formatExtJPEG;
-       else if (!strcmp(scanner->caps[scanner->source].default_format, "image/png"))
-          format_ext = formatExtPNG;
-       else if (!strcmp(scanner->caps[scanner->source].default_format, "image/tiff"))
-          format_ext = formatExtTIFF;
-       else
-          format_ext = f_ext;
+	char f_ext_tmp[1024];
+	snprintf(f_ext_tmp, sizeof(f_ext_tmp),
+			"   <scan:DocumentFormatExt>%s</scan:DocumentFormatExt>",
+    			scanner->caps[scanner->source].default_format);
+        format_ext = f_exti_tmp;
     }
     else
       format_ext = f_ext;
+    if(!strcmp(scanner->Sources[scanner->source], "Feeder")) {
+       snprintf(duplex_mode, sizeof(duplex_mode),
+		       "   <scan:Duplex>%s</scan:Duplex>",
+		       scanner->caps[scanner->source].duplex ? "true" : "false");
+    }
     DBG( 1, "Create NewJob : %s\n", scanner->caps[scanner->source].default_format);
     if (curl_handle != NULL) {
         snprintf(cap_data, sizeof(cap_data), settings,
@@ -190,7 +186,9 @@ escl_newjob (capabilities_t *scanner, SANE_String_Const name, SANE_Status *statu
 			scanner->caps[scanner->source].default_color,
 			scanner->caps[scanner->source].default_resolution,
 			scanner->caps[scanner->source].default_resolution,
-			scanner->Sources[scanner->source]);
+			scanner->Sources[scanner->source],
+			scanner->Sources[scanner->source],
+			duplex_mode[0] == 0 ? "" : duplex_mode);
         DBG( 1, "Create NewJob : %s\n", cap_data);
         upload->read_data = strdup(cap_data);
         upload->size = strlen(cap_data);