genesys: Don't hardcode depth during warmup

backend/genesys/gl124.cpp

@@ -1431,7 +1431,7 @@ void CommandSetGl124::init_regs_for_warmup(Genesys_Device* dev, const Genesys_Se
     session.params.starty = 0;
     session.params.pixels = dev->model->x_size_calib_mm * sensor.optical_res / MM_PER_INCH / 2;
     session.params.lines = 1;
-    session.params.depth = 8;
+    session.params.depth = dev->model->bpp_color_values.front();
     session.params.channels = 3;
     session.params.scan_method = dev->settings.scan_method;
     session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;

backend/genesys/gl646.cpp

@@ -2481,7 +2481,7 @@ void CommandSetGl646::init_regs_for_warmup(Genesys_Device* dev, const Genesys_Se
     settings.pixels = dev->model->x_size_calib_mm * resolution / MM_PER_INCH;
     settings.requested_pixels = settings.pixels;
   settings.lines = 2;
-  settings.depth = 8;
+    settings.depth = dev->model->bpp_gray_values.front();
   settings.color_filter = ColorFilter::RED;
 
   settings.disable_interpolation = 0;

backend/genesys/gl841.cpp

@@ -2855,7 +2855,7 @@ void CommandSetGl841::init_regs_for_warmup(Genesys_Device* dev, const Genesys_Se
     session.params.starty = 0;
     session.params.pixels = num_pixels;
     session.params.lines = 1;
-    session.params.depth = 16;
+    session.params.depth = dev->model->bpp_color_values.front();
     session.params.channels = 3;
     session.params.scan_method = dev->settings.scan_method;
     session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;

backend/genesys/gl843.cpp

@@ -1779,7 +1779,7 @@ void CommandSetGl843::init_regs_for_warmup(Genesys_Device* dev, const Genesys_Se
     session.params.starty = 0;
     session.params.pixels = num_pixels;
     session.params.lines = 1;
-    session.params.depth = 8;
+    session.params.depth = dev->model->bpp_color_values.front();
     session.params.channels = channels;
     session.params.scan_method = dev->settings.scan_method;
     session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS;