genesys: Introduce a model flag for inverted 16-bit output

backend/genesys.cc

@@ -1666,7 +1666,7 @@ static void genesys_shading_calibration_impl(Genesys_Device* dev, const Genesys_
 
     dev->cmd_set->end_scan(dev, &dev->calib_reg, SANE_TRUE);
 
-    if (dev->model->model_id == MODEL_PLUSTEK_OPTICFILM_7200I) {
+    if (dev->model->flags & GENESYS_FLAG_16BIT_DATA_INVERTED) {
         for (std::size_t i = 0; i < size / 2; ++i) {
             auto value = calibration_data[i];
             value = ((value >> 8) & 0xff) | ((value << 8) & 0xff00);

backend/genesys_low.cc

@@ -850,7 +850,7 @@ Image read_unshuffled_image_from_scanner(Genesys_Device* dev, const ScanSession&
     ImagePipelineStack pipeline;
     pipeline.push_first_node<ImagePipelineNodeImageSource>(image);
 
-    if (dev->model->model_id == MODEL_PLUSTEK_OPTICFILM_7200I && session.params.depth == 16) {
+    if ((dev->model->flags & GENESYS_FLAG_16BIT_DATA_INVERTED) && session.params.depth == 16) {
         dev->pipeline.push_node<ImagePipelineNodeSwap16BitEndian>();
     }
 
@@ -1714,7 +1714,7 @@ void build_image_pipeline(Genesys_Device* dev, const ScanSession& session)
                                                         "_0_before_swap.pnm");
     }
 
-    if (dev->model->model_id == MODEL_PLUSTEK_OPTICFILM_7200I && depth == 16) {
+    if ((dev->model->flags & GENESYS_FLAG_16BIT_DATA_INVERTED) && depth == 16) {
         dev->pipeline.push_node<ImagePipelineNodeSwap16BitEndian>();
     }
 

backend/genesys_low.h

@@ -138,6 +138,7 @@
 #define GENESYS_FLAG_HAS_UTA_INFRARED (1 << 20)
 // scanner calibration is handled on the host side
 #define GENESYS_FLAG_CALIBRATION_HOST_SIDE (1 << 21)
+#define GENESYS_FLAG_16BIT_DATA_INVERTED (1 << 22)
 
 #define GENESYS_HAS_NO_BUTTONS       0              /**< scanner has no supported button */
 #define GENESYS_HAS_SCAN_SW          (1 << 0)       /**< scanner has SCAN button */

backend/genesys_tables_model.cc

@@ -2380,7 +2380,8 @@ void genesys_init_usb_device_tables()
                   GENESYS_FLAG_OFFSET_CALIBRATION |
                   GENESYS_HAS_NO_BUTTONS |
                   GENESYS_FLAG_SHADING_REPARK |
-                  GENESYS_FLAG_CALIBRATION_HOST_SIDE;
+                  GENESYS_FLAG_CALIBRATION_HOST_SIDE |
+                  GENESYS_FLAG_16BIT_DATA_INVERTED;
 
     model.shading_lines = 7;
     model.shading_ta_lines = 50;