Merge branch 'release/debian/1.0.31-1_experimental1' into masterdebian/1.0.31-1_experimental1

14 files changed, 582 insertions, 226 deletions

diff --git a/testsuite/backend/genesys/Makefile.am b/testsuite/backend/genesys/Makefile.am
index 818a523..3c0443e 100644
--- a/testsuite/backend/genesys/Makefile.am
+++ b/testsuite/backend/genesys/Makefile.am
@@ -11,7 +11,7 @@ TEST_LDADD = \
   ../../../lib/liblib.la \
   ../../../backend/libgenesys.la \
   ../../../backend/sane_strstatus.lo \
-  $(MATH_LIB) $(USB_LIBS) $(XML_LIBS) $(PTHREAD_LIBS)
+  $(MATH_LIB) $(TIFF_LIBS) $(USB_LIBS) $(XML_LIBS) $(PTHREAD_LIBS)
 
 check_PROGRAMS = genesys_unit_tests genesys_session_config_tests
 TESTS = genesys_unit_tests
diff --git a/testsuite/backend/genesys/session_config_test.cpp b/testsuite/backend/genesys/session_config_test.cpp
index 72043bb..7c2ddbe 100644
--- a/testsuite/backend/genesys/session_config_test.cpp
+++ b/testsuite/backend/genesys/session_config_test.cpp
@@ -47,6 +47,7 @@ struct TestConfig
 {
     std::uint16_t vendor_id = 0;
     std::uint16_t product_id = 0;
+    std::uint16_t bcd_device = 0;
     std::string model_name;
     genesys::ScanMethod method = genesys::ScanMethod::FLATBED;
     genesys::ScanColorMode color_mode = genesys::ScanColorMode::COLOR_SINGLE_PASS;
@@ -143,7 +144,7 @@ public:
         auto i = find_option(name, SANE_TYPE_FIXED);
         int value = 0;
         TIE(sane_control_option(handle_, i, SANE_ACTION_GET_VALUE, &value, nullptr));
-        return static_cast<float>(SANE_UNFIX(value));
+        return genesys::fixed_to_float(value);
     }
 
     void set_value_float(const std::string& name, float value)
@@ -198,7 +199,19 @@ private:
 };
 
 
-void build_checkpoint(const genesys::Genesys_Device& dev,
+void print_params(const SANE_Parameters& params, std::stringstream& out)
+{
+    out << "\n\n================\n"
+        << "Scan params:\n"
+        << "format: " << params.format << "\n"
+        << "last_frame: " << params.last_frame << "\n"
+        << "bytes_per_line: " << params.bytes_per_line << "\n"
+        << "pixels_per_line: " << params.pixels_per_line << "\n"
+        << "lines: " << params.lines << "\n"
+        << "depth: " << params.depth << "\n";
+}
+
+void print_checkpoint(const genesys::Genesys_Device& dev,
                       genesys::TestScannerInterface& iface,
                       const std::string& checkpoint_name,
                       std::stringstream& out)
@@ -239,14 +252,15 @@ void build_checkpoint(const genesys::Genesys_Device& dev,
 
 void run_single_test_scan(const TestConfig& config, std::stringstream& out)
 {
-    auto build_checkpoint_wrapper = [&](const genesys::Genesys_Device& dev,
+    auto print_checkpoint_wrapper = [&](const genesys::Genesys_Device& dev,
                                         genesys::TestScannerInterface& iface,
                                         const std::string& checkpoint_name)
     {
-        build_checkpoint(dev, iface, checkpoint_name, out);
+        print_checkpoint(dev, iface, checkpoint_name, out);
     };
 
-    genesys::enable_testing_mode(config.vendor_id, config.product_id, build_checkpoint_wrapper);
+    genesys::enable_testing_mode(config.vendor_id, config.product_id, config.bcd_device,
+                                 print_checkpoint_wrapper);
 
     SANE_Handle handle;
 
@@ -272,6 +286,8 @@ void run_single_test_scan(const TestConfig& config, std::stringstream& out)
     SANE_Parameters params;
     TIE(sane_get_parameters(handle, &params));
 
+    print_params(params, out);
+
     int buffer_size = 1024 * 1024;
     std::vector<std::uint8_t> buffer;
     buffer.resize(buffer_size);
@@ -389,35 +405,41 @@ TestResult perform_single_test(const TestConfig& config, const std::string& chec
 std::vector<TestConfig> get_all_test_configs()
 {
     genesys::genesys_init_usb_device_tables();
+    genesys::genesys_init_sensor_tables();
+    genesys::verify_usb_device_tables();
+    genesys::verify_sensor_tables();
 
     std::vector<TestConfig> configs;
     std::unordered_set<std::string> model_names;
 
     for (const auto& usb_dev : *genesys::s_usb_devices) {
-        if (usb_dev.model.flags & GENESYS_FLAG_UNTESTED) {
+
+        const auto& model = usb_dev.model();
+
+        if (genesys::has_flag(model.flags, genesys::ModelFlag::UNTESTED)) {
             continue;
         }
-        if (model_names.find(usb_dev.model.name) != model_names.end()) {
+        if (model_names.find(model.name) != model_names.end()) {
             continue;
         }
-        model_names.insert(usb_dev.model.name);
+        model_names.insert(model.name);
 
-        for (auto scan_mode : { genesys::ScanColorMode::LINEART,
-                                genesys::ScanColorMode::GRAY,
+        for (auto scan_mode : { genesys::ScanColorMode::GRAY,
                                 genesys::ScanColorMode::COLOR_SINGLE_PASS }) {
 
-            auto depth_values = usb_dev.model.bpp_gray_values;
+            auto depth_values = model.bpp_gray_values;
             if (scan_mode == genesys::ScanColorMode::COLOR_SINGLE_PASS) {
-                depth_values = usb_dev.model.bpp_color_values;
+                depth_values = model.bpp_color_values;
             }
             for (unsigned depth : depth_values) {
-                for (auto method_resolutions : usb_dev.model.resolutions) {
+                for (auto method_resolutions : model.resolutions) {
                     for (auto method : method_resolutions.methods) {
                         for (unsigned resolution : method_resolutions.get_resolutions()) {
                             TestConfig config;
-                            config.vendor_id = usb_dev.vendor;
-                            config.product_id = usb_dev.product;
-                            config.model_name = usb_dev.model.name;
+                            config.vendor_id = usb_dev.vendor_id();
+                            config.product_id = usb_dev.product_id();
+                            config.bcd_device = usb_dev.bcd_device();
+                            config.model_name = model.name;
                             config.method = method;
                             config.depth = depth;
                             config.resolution = resolution;
diff --git a/testsuite/backend/genesys/tests_calibration.cpp b/testsuite/backend/genesys/tests_calibration.cpp
index 559f8a8..8c9c8b5 100644
--- a/testsuite/backend/genesys/tests_calibration.cpp
+++ b/testsuite/backend/genesys/tests_calibration.cpp
@@ -66,11 +66,9 @@ Genesys_Calibration_Cache create_fake_calibration_entry()
 
     Genesys_Sensor sensor;
     sensor.sensor_id = SensorId::CCD_UMAX;
-    sensor.optical_res = 1200;
+    sensor.full_resolution = 1200;
     sensor.black_pixels = 48;
     sensor.dummy_pixel = 64;
-    sensor.ccd_start_xoffset = 0;
-    sensor.sensor_pixels = 10800;
     sensor.fau_gain_white_ref = 210;
     sensor.gain_white_ref = 230;
     sensor.exposure = { 0x0000, 0x0000, 0x0000 };
@@ -104,8 +102,6 @@ Genesys_Calibration_Cache create_fake_calibration_entry()
     sensor.gamma = {1.0, 1.0, 1.0};
     calib.sensor = sensor;
 
-    calib.calib_pixels = 12345;
-    calib.calib_channels = 3;
     calib.average_size = 7;
     calib.white_average_data = { 8, 7, 6, 5, 4, 3, 2 };
     calib.dark_average_data = { 6, 5, 4, 3, 2, 18, 12 };
diff --git a/testsuite/backend/genesys/tests_image_pipeline.cpp b/testsuite/backend/genesys/tests_image_pipeline.cpp
index d4853d2..7eed9e6 100644
--- a/testsuite/backend/genesys/tests_image_pipeline.cpp
+++ b/testsuite/backend/genesys/tests_image_pipeline.cpp
@@ -32,72 +32,139 @@
 
 namespace genesys {
 
-void test_image_buffer_genesys_usb()
+
+void test_image_buffer_exact_reads()
 {
     std::vector<std::size_t> requests;
 
-    auto on_read_usb = [&](std::size_t x, std::uint8_t* data)
+    auto on_read = [&](std::size_t x, std::uint8_t* data)
     {
         (void) data;
         requests.push_back(x);
+        return true;
     };
 
-    FakeBufferModel model;
-    model.push_step(453120, 1);
-    model.push_step(56640, 3540);
-    ImageBufferGenesysUsb buffer{1086780, model, on_read_usb};
+    ImageBuffer buffer{1000, on_read};
+    buffer.set_remaining_size(2500);
 
     std::vector<std::uint8_t> dummy;
-    dummy.resize(1086780);
-
-    ASSERT_TRUE(buffer.get_data(453120, dummy.data()));
-    ASSERT_TRUE(buffer.get_data(56640, dummy.data()));
-    ASSERT_TRUE(buffer.get_data(56640, dummy.data()));
-    ASSERT_TRUE(buffer.get_data(56640, dummy.data()));
-    ASSERT_TRUE(buffer.get_data(56640, dummy.data()));
-    ASSERT_TRUE(buffer.get_data(56640, dummy.data()));
-    ASSERT_TRUE(buffer.get_data(56640, dummy.data()));
-    ASSERT_TRUE(buffer.get_data(56640, dummy.data()));
-    ASSERT_TRUE(buffer.get_data(56640, dummy.data()));
-    ASSERT_TRUE(buffer.get_data(56640, dummy.data()));
-    ASSERT_TRUE(buffer.get_data(56640, dummy.data()));
-    ASSERT_TRUE(buffer.get_data(56640, dummy.data()));
+    dummy.resize(1000);
+
+    ASSERT_TRUE(buffer.get_data(1000, dummy.data()));
+    ASSERT_TRUE(buffer.get_data(1000, dummy.data()));
+    ASSERT_TRUE(buffer.get_data(500, dummy.data()));
 
     std::vector<std::size_t> expected = {
-        453120, 56576, 56576, 56576, 56832, 56576, 56576, 56576, 56832, 56576, 56576, 56576, 11008
+        1000, 1000, 500
     };
     ASSERT_EQ(requests, expected);
 }
 
-void test_image_buffer_genesys_usb_capped_remaining_bytes()
+void test_image_buffer_smaller_reads()
 {
     std::vector<std::size_t> requests;
 
-    auto on_read_usb = [&](std::size_t x, std::uint8_t* data)
+    auto on_read = [&](std::size_t x, std::uint8_t* data)
     {
         (void) data;
         requests.push_back(x);
+        return true;
     };
 
-    FakeBufferModel model;
-    model.push_step(453120, 1);
-    model.push_step(56640, 3540);
-    ImageBufferGenesysUsb buffer{1086780, model, on_read_usb};
+    ImageBuffer buffer{1000, on_read};
+    buffer.set_remaining_size(2500);
 
     std::vector<std::uint8_t> dummy;
-    dummy.resize(1086780);
+    dummy.resize(700);
+
+    ASSERT_TRUE(buffer.get_data(600, dummy.data()));
+    ASSERT_TRUE(buffer.get_data(600, dummy.data()));
+    ASSERT_TRUE(buffer.get_data(600, dummy.data()));
+    ASSERT_TRUE(buffer.get_data(700, dummy.data()));
+
+    std::vector<std::size_t> expected = {
+        1000, 1000, 500
+    };
+    ASSERT_EQ(requests, expected);
+}
+
+void test_image_buffer_larger_reads()
+{
+    std::vector<std::size_t> requests;
 
-    ASSERT_TRUE(buffer.get_data(453120, dummy.data()));
-    ASSERT_TRUE(buffer.get_data(56640, dummy.data()));
-    ASSERT_TRUE(buffer.get_data(56640, dummy.data()));
-    ASSERT_TRUE(buffer.get_data(56640, dummy.data()));
-    ASSERT_TRUE(buffer.get_data(56640, dummy.data()));
+    auto on_read = [&](std::size_t x, std::uint8_t* data)
+    {
+        (void) data;
+        requests.push_back(x);
+        return true;
+    };
+
+    ImageBuffer buffer{1000, on_read};
+    buffer.set_remaining_size(2500);
+
+    std::vector<std::uint8_t> dummy;
+    dummy.resize(2500);
+
+    ASSERT_TRUE(buffer.get_data(2500, dummy.data()));
+
+    std::vector<std::size_t> expected = {
+        1000, 1000, 500
+    };
+    ASSERT_EQ(requests, expected);
+}
+
+void test_image_buffer_uncapped_remaining_bytes()
+{
+    std::vector<std::size_t> requests;
+    unsigned request_count = 0;
+    auto on_read = [&](std::size_t x, std::uint8_t* data)
+    {
+        (void) data;
+        requests.push_back(x);
+        request_count++;
+        return request_count < 4;
+    };
+
+    ImageBuffer buffer{1000, on_read};
+
+    std::vector<std::uint8_t> dummy;
+    dummy.resize(3000);
+
+    ASSERT_TRUE(buffer.get_data(3000, dummy.data()));
+    ASSERT_FALSE(buffer.get_data(3000, dummy.data()));
+
+    std::vector<std::size_t> expected = {
+        1000, 1000, 1000, 1000
+    };
+    ASSERT_EQ(requests, expected);
+}
+
+void test_image_buffer_capped_remaining_bytes()
+{
+    std::vector<std::size_t> requests;
+
+    auto on_read = [&](std::size_t x, std::uint8_t* data)
+    {
+        (void) data;
+        requests.push_back(x);
+        return true;
+    };
+
+    ImageBuffer buffer{1000, on_read};
     buffer.set_remaining_size(10000);
-    ASSERT_FALSE(buffer.get_data(56640, dummy.data()));
+    buffer.set_last_read_multiple(16);
+
+    std::vector<std::uint8_t> dummy;
+    dummy.resize(2000);
+
+    ASSERT_TRUE(buffer.get_data(2000, dummy.data()));
+    ASSERT_TRUE(buffer.get_data(2000, dummy.data()));
+    buffer.set_remaining_size(100);
+    ASSERT_FALSE(buffer.get_data(200, dummy.data()));
 
     std::vector<std::size_t> expected = {
-        // note that the sizes are rounded-up to 256 bytes
-        453120, 56576, 56576, 56576, 56832, 10240
+        // note that the sizes are rounded-up to 16 bytes
+        1000, 1000, 1000, 1000, 112
     };
     ASSERT_EQ(requests, expected);
 }
@@ -300,6 +367,109 @@ void test_node_swap_16bit_endian()
     ASSERT_EQ(out_data, expected_data);
 }
 
+void test_node_invert_16_bits()
+{
+    using Data16 = std::vector<std::uint16_t>;
+    using Data = std::vector<std::uint8_t>;
+
+    Data16 in_data = {
+        0x1020, 0x3011, 0x2131,
+        0x1222, 0x3213, 0x2333,
+        0x1424, 0x3415, 0x2525,
+        0x1626, 0x3617, 0x2737,
+    };
+
+    Data in_data_8bit;
+    in_data_8bit.resize(in_data.size() * 2);
+    std::memcpy(in_data_8bit.data(), in_data.data(), in_data_8bit.size());
+
+    ImagePipelineStack stack;
+    stack.push_first_node<ImagePipelineNodeArraySource>(4, 1, PixelFormat::RGB161616,
+                                                        std::move(in_data_8bit));
+    stack.push_node<ImagePipelineNodeInvert>();
+
+    ASSERT_EQ(stack.get_output_width(), 4u);
+    ASSERT_EQ(stack.get_output_height(), 1u);
+    ASSERT_EQ(stack.get_output_row_bytes(), 24u);
+    ASSERT_EQ(stack.get_output_format(), PixelFormat::RGB161616);
+
+    auto out_data_8bit = stack.get_all_data();
+    Data16 out_data;
+    out_data.resize(out_data_8bit.size() / 2);
+    std::memcpy(out_data.data(), out_data_8bit.data(), out_data_8bit.size());
+
+    Data16 expected_data = {
+        0xefdf, 0xcfee, 0xdece,
+        0xeddd, 0xcdec, 0xdccc,
+        0xebdb, 0xcbea, 0xdada,
+        0xe9d9, 0xc9e8, 0xd8c8,
+    };
+
+    ASSERT_EQ(out_data, expected_data);
+}
+
+void test_node_invert_8_bits()
+{
+    using Data = std::vector<std::uint8_t>;
+
+    Data in_data = {
+        0x10, 0x20, 0x30, 0x11, 0x21, 0x31,
+        0x12, 0x22, 0x32, 0x13, 0x23, 0x33,
+        0x14, 0x24, 0x34, 0x15, 0x25, 0x35,
+        0x16, 0x26, 0x36, 0x17, 0x27, 0x37,
+    };
+
+    ImagePipelineStack stack;
+    stack.push_first_node<ImagePipelineNodeArraySource>(8, 1, PixelFormat::RGB888,
+                                                        std::move(in_data));
+    stack.push_node<ImagePipelineNodeInvert>();
+
+    ASSERT_EQ(stack.get_output_width(), 8u);
+    ASSERT_EQ(stack.get_output_height(), 1u);
+    ASSERT_EQ(stack.get_output_row_bytes(), 24u);
+    ASSERT_EQ(stack.get_output_format(), PixelFormat::RGB888);
+
+    auto out_data = stack.get_all_data();
+
+    Data expected_data = {
+        0xef, 0xdf, 0xcf, 0xee, 0xde, 0xce,
+        0xed, 0xdd, 0xcd, 0xec, 0xdc, 0xcc,
+        0xeb, 0xdb, 0xcb, 0xea, 0xda, 0xca,
+        0xe9, 0xd9, 0xc9, 0xe8, 0xd8, 0xc8,
+    };
+
+    ASSERT_EQ(out_data, expected_data);
+}
+
+void test_node_invert_1_bits()
+{
+    using Data = std::vector<std::uint8_t>;
+
+    Data in_data = {
+        0x10, 0x20, 0x30, 0x11, 0x21, 0x31,
+        0x16, 0x26, 0x36, 0x17, 0x27, 0x37,
+    };
+
+    ImagePipelineStack stack;
+    stack.push_first_node<ImagePipelineNodeArraySource>(32, 1, PixelFormat::RGB111,
+                                                        std::move(in_data));
+    stack.push_node<ImagePipelineNodeInvert>();
+
+    ASSERT_EQ(stack.get_output_width(), 32u);
+    ASSERT_EQ(stack.get_output_height(), 1u);
+    ASSERT_EQ(stack.get_output_row_bytes(), 12u);
+    ASSERT_EQ(stack.get_output_format(), PixelFormat::RGB111);
+
+    auto out_data = stack.get_all_data();
+
+    Data expected_data = {
+        0xef, 0xdf, 0xcf, 0xee, 0xde, 0xce,
+        0xe9, 0xd9, 0xc9, 0xe8, 0xd8, 0xc8,
+    };
+
+    ASSERT_EQ(out_data, expected_data);
+}
+
 void test_node_merge_mono_lines()
 {
     using Data = std::vector<std::uint8_t>;
@@ -395,7 +565,7 @@ void test_node_component_shift_lines()
     ASSERT_EQ(out_data, expected_data);
 }
 
-void test_node_pixel_shift_lines()
+void test_node_pixel_shift_lines_2lines()
 {
     using Data = std::vector<std::uint8_t>;
 
@@ -426,6 +596,261 @@ void test_node_pixel_shift_lines()
     ASSERT_EQ(out_data, expected_data);
 }
 
+void test_node_pixel_shift_lines_4lines()
+{
+    using Data = std::vector<std::uint8_t>;
+
+    Data in_data = {
+        0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
+        0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b,
+        0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
+        0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b,
+        0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b,
+        0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b,
+        0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b,
+        0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b,
+        0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b,
+    };
+
+    ImagePipelineStack stack;
+    stack.push_first_node<ImagePipelineNodeArraySource>(12, 9, PixelFormat::I8,
+                                                        std::move(in_data));
+    stack.push_node<ImagePipelineNodePixelShiftLines>(std::vector<std::size_t>{0, 2, 1, 3});
+
+    ASSERT_EQ(stack.get_output_width(), 12u);
+    ASSERT_EQ(stack.get_output_height(), 6u);
+    ASSERT_EQ(stack.get_output_row_bytes(), 12u);
+    ASSERT_EQ(stack.get_output_format(), PixelFormat::I8);
+
+    auto out_data = stack.get_all_data();
+
+    Data expected_data = {
+        0x00, 0x21, 0x12, 0x33, 0x04, 0x25, 0x16, 0x37, 0x08, 0x29, 0x1a, 0x3b,
+        0x10, 0x31, 0x22, 0x43, 0x14, 0x35, 0x26, 0x47, 0x18, 0x39, 0x2a, 0x4b,
+        0x20, 0x41, 0x32, 0x53, 0x24, 0x45, 0x36, 0x57, 0x28, 0x49, 0x3a, 0x5b,
+        0x30, 0x51, 0x42, 0x63, 0x34, 0x55, 0x46, 0x67, 0x38, 0x59, 0x4a, 0x6b,
+        0x40, 0x61, 0x52, 0x73, 0x44, 0x65, 0x56, 0x77, 0x48, 0x69, 0x5a, 0x7b,
+        0x50, 0x71, 0x62, 0x83, 0x54, 0x75, 0x66, 0x87, 0x58, 0x79, 0x6a, 0x8b,
+    };
+
+    ASSERT_EQ(out_data, expected_data);
+}
+
+void test_node_pixel_shift_columns_compute_max_width()
+{
+    ASSERT_EQ(compute_pixel_shift_extra_width(12, {0, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(13, {0, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(14, {0, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(15, {0, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(16, {0, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(17, {0, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(18, {0, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(19, {0, 1, 2, 3}), 0u);
+
+    ASSERT_EQ(compute_pixel_shift_extra_width(12, {1, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(13, {1, 1, 2, 3}), 1u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(14, {1, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(15, {1, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(16, {1, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(17, {1, 1, 2, 3}), 1u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(18, {1, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(19, {1, 1, 2, 3}), 0u);
+
+    ASSERT_EQ(compute_pixel_shift_extra_width(12, {2, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(13, {2, 1, 2, 3}), 1u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(14, {2, 1, 2, 3}), 2u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(15, {2, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(16, {2, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(17, {2, 1, 2, 3}), 1u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(18, {2, 1, 2, 3}), 2u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(19, {2, 1, 2, 3}), 0u);
+
+    ASSERT_EQ(compute_pixel_shift_extra_width(12, {3, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(13, {3, 1, 2, 3}), 1u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(14, {3, 1, 2, 3}), 2u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(15, {3, 1, 2, 3}), 3u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(16, {3, 1, 2, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(17, {3, 1, 2, 3}), 1u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(18, {3, 1, 2, 3}), 2u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(19, {3, 1, 2, 3}), 3u);
+
+    ASSERT_EQ(compute_pixel_shift_extra_width(12, {7, 1, 2, 3}), 4u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(13, {7, 1, 2, 3}), 5u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(14, {7, 1, 2, 3}), 6u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(15, {7, 1, 2, 3}), 7u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(16, {7, 1, 2, 3}), 4u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(17, {7, 1, 2, 3}), 5u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(18, {7, 1, 2, 3}), 6u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(19, {7, 1, 2, 3}), 7u);
+
+    ASSERT_EQ(compute_pixel_shift_extra_width(12, {0, 1, 3, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(13, {0, 1, 3, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(14, {0, 1, 3, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(15, {0, 1, 3, 3}), 1u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(16, {0, 1, 3, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(17, {0, 1, 3, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(18, {0, 1, 3, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(19, {0, 1, 3, 3}), 1u);
+
+    ASSERT_EQ(compute_pixel_shift_extra_width(12, {0, 1, 4, 3}), 2u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(13, {0, 1, 4, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(14, {0, 1, 4, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(15, {0, 1, 4, 3}), 1u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(16, {0, 1, 4, 3}), 2u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(17, {0, 1, 4, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(18, {0, 1, 4, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(19, {0, 1, 4, 3}), 1u);
+
+    ASSERT_EQ(compute_pixel_shift_extra_width(12, {0, 1, 5, 3}), 2u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(13, {0, 1, 5, 3}), 3u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(14, {0, 1, 5, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(15, {0, 1, 5, 3}), 1u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(16, {0, 1, 5, 3}), 2u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(17, {0, 1, 5, 3}), 3u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(18, {0, 1, 5, 3}), 0u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(19, {0, 1, 5, 3}), 1u);
+
+    ASSERT_EQ(compute_pixel_shift_extra_width(12, {0, 1, 9, 3}), 6u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(13, {0, 1, 9, 3}), 7u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(14, {0, 1, 9, 3}), 4u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(15, {0, 1, 9, 3}), 5u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(16, {0, 1, 9, 3}), 6u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(17, {0, 1, 9, 3}), 7u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(18, {0, 1, 9, 3}), 4u);
+    ASSERT_EQ(compute_pixel_shift_extra_width(19, {0, 1, 9, 3}), 5u);
+}
+
+void test_node_pixel_shift_columns_no_switch()
+{
+    using Data = std::vector<std::uint8_t>;
+
+    Data in_data = {
+        0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
+        0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b,
+    };
+
+    ImagePipelineStack stack;
+    stack.push_first_node<ImagePipelineNodeArraySource>(12, 2, PixelFormat::I8, in_data);
+    stack.push_node<ImagePipelineNodePixelShiftColumns>(std::vector<std::size_t>{0, 1, 2, 3});
+
+    ASSERT_EQ(stack.get_output_width(), 12u);
+    ASSERT_EQ(stack.get_output_height(), 2u);
+    ASSERT_EQ(stack.get_output_row_bytes(), 12u);
+    ASSERT_EQ(stack.get_output_format(), PixelFormat::I8);
+
+    auto out_data = stack.get_all_data();
+
+    ASSERT_EQ(out_data, in_data);
+}
+
+void test_node_pixel_shift_columns_group_switch_pixel_multiple()
+{
+    using Data = std::vector<std::uint8_t>;
+
+    Data in_data = {
+        0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
+        0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b,
+    };
+
+    ImagePipelineStack stack;
+    stack.push_first_node<ImagePipelineNodeArraySource>(12, 2, PixelFormat::I8, in_data);
+    stack.push_node<ImagePipelineNodePixelShiftColumns>(std::vector<std::size_t>{3, 1, 2, 0});
+
+    ASSERT_EQ(stack.get_output_width(), 12u);
+    ASSERT_EQ(stack.get_output_height(), 2u);
+    ASSERT_EQ(stack.get_output_row_bytes(), 12u);
+    ASSERT_EQ(stack.get_output_format(), PixelFormat::I8);
+
+    auto out_data = stack.get_all_data();
+
+    Data expected_data = {
+        0x03, 0x01, 0x02, 0x00, 0x07, 0x05, 0x06, 0x04, 0x0b, 0x09, 0x0a, 0x08,
+        0x13, 0x11, 0x12, 0x10, 0x17, 0x15, 0x16, 0x14, 0x1b, 0x19, 0x1a, 0x18,
+    };
+    ASSERT_EQ(out_data, expected_data);
+}
+
+void test_node_pixel_shift_columns_group_switch_pixel_not_multiple()
+{
+    using Data = std::vector<std::uint8_t>;
+
+    Data in_data = {
+        0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c,
+        0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c,
+    };
+
+    ImagePipelineStack stack;
+    stack.push_first_node<ImagePipelineNodeArraySource>(13, 2, PixelFormat::I8, in_data);
+    stack.push_node<ImagePipelineNodePixelShiftColumns>(std::vector<std::size_t>{3, 1, 2, 0});
+
+    ASSERT_EQ(stack.get_output_width(), 12u);
+    ASSERT_EQ(stack.get_output_height(), 2u);
+    ASSERT_EQ(stack.get_output_row_bytes(), 12u);
+    ASSERT_EQ(stack.get_output_format(), PixelFormat::I8);
+
+    auto out_data = stack.get_all_data();
+
+    Data expected_data = {
+        0x03, 0x01, 0x02, 0x00, 0x07, 0x05, 0x06, 0x04, 0x0b, 0x09, 0x0a, 0x08,
+        0x13, 0x11, 0x12, 0x10, 0x17, 0x15, 0x16, 0x14, 0x1b, 0x19, 0x1a, 0x18,
+    };
+    ASSERT_EQ(out_data, expected_data);
+}
+
+void test_node_pixel_shift_columns_group_switch_pixel_large_offsets_multiple()
+{
+    using Data = std::vector<std::uint8_t>;
+
+    Data in_data = {
+        0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
+        0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b,
+    };
+
+    ImagePipelineStack stack;
+    stack.push_first_node<ImagePipelineNodeArraySource>(12, 2, PixelFormat::I8, in_data);
+    stack.push_node<ImagePipelineNodePixelShiftColumns>(std::vector<std::size_t>{7, 1, 5, 0});
+
+    ASSERT_EQ(stack.get_output_width(), 8u);
+    ASSERT_EQ(stack.get_output_height(), 2u);
+    ASSERT_EQ(stack.get_output_row_bytes(), 8u);
+    ASSERT_EQ(stack.get_output_format(), PixelFormat::I8);
+
+    auto out_data = stack.get_all_data();
+
+    Data expected_data = {
+        0x07, 0x01, 0x05, 0x00, 0x0b, 0x05, 0x09, 0x04,
+        0x17, 0x11, 0x15, 0x10, 0x1b, 0x15, 0x19, 0x14,
+    };
+    ASSERT_EQ(out_data, expected_data);
+}
+
+void test_node_pixel_shift_columns_group_switch_pixel_large_offsets_not_multiple()
+{
+    using Data = std::vector<std::uint8_t>;
+
+    Data in_data = {
+        0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c,
+        0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c,
+    };
+
+    ImagePipelineStack stack;
+    stack.push_first_node<ImagePipelineNodeArraySource>(13, 2, PixelFormat::I8, in_data);
+    stack.push_node<ImagePipelineNodePixelShiftColumns>(std::vector<std::size_t>{7, 1, 5, 0});
+
+    ASSERT_EQ(stack.get_output_width(), 8u);
+    ASSERT_EQ(stack.get_output_height(), 2u);
+    ASSERT_EQ(stack.get_output_row_bytes(), 8u);
+    ASSERT_EQ(stack.get_output_format(), PixelFormat::I8);
+
+    auto out_data = stack.get_all_data();
+
+    Data expected_data = {
+        0x07, 0x01, 0x05, 0x00, 0x0b, 0x05, 0x09, 0x04,
+        0x17, 0x11, 0x15, 0x10, 0x1b, 0x15, 0x19, 0x14,
+    };
+    ASSERT_EQ(out_data, expected_data);
+}
+
 void test_node_calibrate_8bit()
 {
     using Data = std::vector<std::uint8_t>;
@@ -445,7 +870,7 @@ void test_node_calibrate_8bit()
     ImagePipelineStack stack;
     stack.push_first_node<ImagePipelineNodeArraySource>(1, 1, PixelFormat::RGB888,
                                                         std::move(in_data));
-    stack.push_node<ImagePipelineNodeCalibrate>(bottom, top);
+    stack.push_node<ImagePipelineNodeCalibrate>(bottom, top, 0);
 
     ASSERT_EQ(stack.get_output_width(), 1u);
     ASSERT_EQ(stack.get_output_height(), 1u);
@@ -481,7 +906,7 @@ void test_node_calibrate_16bit()
     ImagePipelineStack stack;
     stack.push_first_node<ImagePipelineNodeArraySource>(1, 1, PixelFormat::RGB161616,
                                                         std::move(in_data));
-    stack.push_node<ImagePipelineNodeCalibrate>(bottom, top);
+    stack.push_node<ImagePipelineNodeCalibrate>(bottom, top, 0);
 
     ASSERT_EQ(stack.get_output_width(), 1u);
     ASSERT_EQ(stack.get_output_height(), 1u);
@@ -500,18 +925,31 @@ void test_node_calibrate_16bit()
 
 void test_image_pipeline()
 {
-    test_image_buffer_genesys_usb();
-    test_image_buffer_genesys_usb_capped_remaining_bytes();
+    test_image_buffer_exact_reads();
+    test_image_buffer_smaller_reads();
+    test_image_buffer_larger_reads();
+    test_image_buffer_uncapped_remaining_bytes();
+    test_image_buffer_capped_remaining_bytes();
     test_node_buffered_callable_source();
     test_node_format_convert();
     test_node_desegment_1_line();
     test_node_deinterleave_lines_i8();
     test_node_deinterleave_lines_rgb888();
     test_node_swap_16bit_endian();
+    test_node_invert_16_bits();
+    test_node_invert_8_bits();
+    test_node_invert_1_bits();
     test_node_merge_mono_lines();
     test_node_split_mono_lines();
     test_node_component_shift_lines();
-    test_node_pixel_shift_lines();
+    test_node_pixel_shift_columns_no_switch();
+    test_node_pixel_shift_columns_group_switch_pixel_multiple();
+    test_node_pixel_shift_columns_group_switch_pixel_not_multiple();
+    test_node_pixel_shift_columns_group_switch_pixel_large_offsets_multiple();
+    test_node_pixel_shift_columns_group_switch_pixel_large_offsets_not_multiple();
+    test_node_pixel_shift_lines_2lines();
+    test_node_pixel_shift_lines_4lines();
+    test_node_pixel_shift_columns_compute_max_width();
     test_node_calibrate_8bit();
     test_node_calibrate_16bit();
 }
diff --git a/testsuite/backend/genesys/tests_motor.cpp b/testsuite/backend/genesys/tests_motor.cpp
index 07ca693..18a4d7e 100644
--- a/testsuite/backend/genesys/tests_motor.cpp
+++ b/testsuite/backend/genesys/tests_motor.cpp
@@ -31,100 +31,6 @@
 
 namespace genesys {
 
-void test_create_slope_table3()
-{
-    auto asic_type = AsicType::GL841;
-    auto max_table_size = get_slope_table_max_size(asic_type);
-
-    Genesys_Motor motor;
-    motor.id = MotorId::CANON_LIDE_200;
-    motor.base_ydpi = 1200;
-    motor.optical_ydpi = 6400;
-    motor.slopes.push_back(MotorSlope::create_from_steps(10000, 1000, 20));
-    motor.slopes.push_back(MotorSlope::create_from_steps(10000, 1000, 20));
-    motor.slopes.push_back(MotorSlope::create_from_steps(10000, 1000, 16));
-
-    auto table = sanei_genesys_create_slope_table3(asic_type, motor, StepType::FULL, 10000,
-                                                   motor.base_ydpi);
-
-    ASSERT_EQ(table.pixeltime_sum, 10000u);
-    ASSERT_EQ(table.steps_count, 1u);
-
-    std::vector<std::uint16_t> expected_steps = {
-        10000,
-    };
-    expected_steps.resize(max_table_size, 10000);
-
-    ASSERT_EQ(table.table, expected_steps);
-
-    table = sanei_genesys_create_slope_table3(asic_type, motor, StepType::FULL, 2000,
-                                              motor.base_ydpi);
-
-    ASSERT_EQ(table.pixeltime_sum, 33830u);
-    ASSERT_EQ(table.steps_count, 7u);
-
-    expected_steps = {
-        10000, 10000, 4099, 3028, 2511, 2192, 2000
-    };
-    expected_steps.resize(max_table_size, 2000);
-
-    ASSERT_EQ(table.table, expected_steps);
-
-    table = sanei_genesys_create_slope_table3(asic_type, motor, StepType::HALF, 10000,
-                                              motor.base_ydpi);
-
-    ASSERT_EQ(table.pixeltime_sum, 5000u);
-    ASSERT_EQ(table.steps_count, 1u);
-
-    expected_steps = {
-        5000,
-    };
-    expected_steps.resize(max_table_size, 5000);
-
-
-    ASSERT_EQ(table.table, expected_steps);
-
-    table = sanei_genesys_create_slope_table3(asic_type, motor, StepType::HALF, 2000,
-                                              motor.base_ydpi);
-
-    ASSERT_EQ(table.pixeltime_sum, 16914u);
-    ASSERT_EQ(table.steps_count, 7u);
-
-    expected_steps = {
-        5000, 5000, 2049, 1514, 1255, 1096, 1000
-    };
-    expected_steps.resize(max_table_size, 1000);
-
-    ASSERT_EQ(table.table, expected_steps);
-
-    table = sanei_genesys_create_slope_table3(asic_type, motor, StepType::QUARTER, 10000,
-                                              motor.base_ydpi);
-
-    ASSERT_EQ(table.pixeltime_sum, 2500u);
-    ASSERT_EQ(table.steps_count, 1u);
-
-    expected_steps = {
-        2500,
-    };
-    expected_steps.resize(max_table_size, 2500);
-
-
-    ASSERT_EQ(table.table, expected_steps);
-
-    table = sanei_genesys_create_slope_table3(asic_type, motor, StepType::QUARTER, 2000,
-                                              motor.base_ydpi);
-
-    ASSERT_EQ(table.pixeltime_sum, 7680u);
-    ASSERT_EQ(table.steps_count, 6u);
-
-    expected_steps = {
-        2500, 2500, 932, 683, 565, 500
-    };
-    expected_steps.resize(max_table_size, 500);
-
-    ASSERT_EQ(table.table, expected_steps);
-}
-
 void test_create_slope_table_small_full_step()
 {
     unsigned max_table_size = 1024;
@@ -135,26 +41,24 @@ void test_create_slope_table_small_full_step()
     slope.max_speed_w = 2632;
     slope.acceleration = 1.2e-8;
 
-    auto table = create_slope_table(slope, 5000, StepType::FULL, 4, 8, max_table_size);
+    auto table = create_slope_table_for_speed(slope, 5000, StepType::FULL, 4, 8, max_table_size);
 
     std::vector<std::uint16_t> expected_table = {
-        62464, 62464, 6420, 5000
+        62464, 62464, 6420, 5000, 5000, 5000, 5000, 5000
     };
-    expected_table.resize(max_table_size, 5000);
     ASSERT_EQ(table.table, expected_table);
-    ASSERT_EQ(table.steps_count, 8u);
-    ASSERT_EQ(table.pixeltime_sum, 156348u);
+    ASSERT_EQ(table.table.size(), 8u);
+    ASSERT_EQ(table.pixeltime_sum(), 156348u);
 
 
-    table = create_slope_table(slope, 3000, StepType::FULL, 4, 8, max_table_size);
+    table = create_slope_table_for_speed(slope, 3000, StepType::FULL, 4, 8, max_table_size);
 
     expected_table = {
-        62464, 62464, 6420, 4552, 3720, 3223, 3000
+        62464, 62464, 6420, 4552, 3720, 3223, 3000, 3000
     };
-    expected_table.resize(max_table_size, 3000);
     ASSERT_EQ(table.table, expected_table);
-    ASSERT_EQ(table.steps_count, 8u);
-    ASSERT_EQ(table.pixeltime_sum, 148843u);
+    ASSERT_EQ(table.table.size(), 8u);
+    ASSERT_EQ(table.pixeltime_sum(), 148843u);
 }
 
 void test_create_slope_table_small_full_step_target_speed_too_high()
@@ -167,15 +71,14 @@ void test_create_slope_table_small_full_step_target_speed_too_high()
     slope.max_speed_w = 2632;
     slope.acceleration = 1.2e-8;
 
-    auto table = create_slope_table(slope, 2000, StepType::FULL, 4, 8, max_table_size);
+    auto table = create_slope_table_for_speed(slope, 2000, StepType::FULL, 4, 8, max_table_size);
 
     std::vector<std::uint16_t> expected_table = {
         62464, 62464, 6420, 4552, 3720, 3223, 2883, 2632
     };
-    expected_table.resize(max_table_size, 2632);
     ASSERT_EQ(table.table, expected_table);
-    ASSERT_EQ(table.steps_count, 8u);
-    ASSERT_EQ(table.pixeltime_sum, 148358u);
+    ASSERT_EQ(table.table.size(), 8u);
+    ASSERT_EQ(table.pixeltime_sum(), 148358u);
 }
 
 void test_create_slope_table_small_half_step()
@@ -188,26 +91,24 @@ void test_create_slope_table_small_half_step()
     slope.max_speed_w = 2632;
     slope.acceleration = 1.2e-8;
 
-    auto table = create_slope_table(slope, 5000, StepType::HALF, 4, 8, max_table_size);
+    auto table = create_slope_table_for_speed(slope, 5000, StepType::HALF, 4, 8, max_table_size);
 
     std::vector<std::uint16_t> expected_table = {
-        31232, 31232, 3210, 2500
+        31232, 31232, 3210, 2500, 2500, 2500, 2500, 2500
     };
-    expected_table.resize(max_table_size, 2500);
     ASSERT_EQ(table.table, expected_table);
-    ASSERT_EQ(table.steps_count, 8u);
-    ASSERT_EQ(table.pixeltime_sum, 78174u);
+    ASSERT_EQ(table.table.size(), 8u);
+    ASSERT_EQ(table.pixeltime_sum(), 78174u);
 
 
-    table = create_slope_table(slope, 3000, StepType::HALF, 4, 8, max_table_size);
+    table = create_slope_table_for_speed(slope, 3000, StepType::HALF, 4, 8, max_table_size);
 
     expected_table = {
-        31232, 31232, 3210, 2276, 1860, 1611, 1500
+        31232, 31232, 3210, 2276, 1860, 1611, 1500, 1500
     };
-    expected_table.resize(max_table_size, 1500);
     ASSERT_EQ(table.table, expected_table);
-    ASSERT_EQ(table.steps_count, 8u);
-    ASSERT_EQ(table.pixeltime_sum, 74421u);
+    ASSERT_EQ(table.table.size(), 8u);
+    ASSERT_EQ(table.pixeltime_sum(), 74421u);
 }
 
 void test_create_slope_table_large_full_step()
@@ -243,7 +144,7 @@ void test_create_slope_table_large_full_step()
     slope.max_speed_w = 1500;
     slope.acceleration = 1.013948e-9;
 
-    auto table = create_slope_table(slope, 3000, StepType::FULL, 4, 8, max_table_size);
+    auto table = create_slope_table_for_speed(slope, 3000, StepType::FULL, 4, 8, max_table_size);
 
     std::vector<std::uint16_t> expected_table = {
         54612, 54612, 20570, 15090, 12481, 10880, 9770, 8943, 8295, 7771,
@@ -251,15 +152,14 @@ void test_create_slope_table_large_full_step()
         5072, 4945, 4826, 4716, 4613, 4517, 4426, 4341, 4260, 4184,
         4111, 4043, 3977, 3915, 3855, 3799, 3744, 3692, 3642, 3594,
         3548, 3503, 3461, 3419, 3379, 3341, 3304, 3268, 3233, 3199,
-        3166, 3135, 3104, 3074, 3045, 3017, 3000,
+        3166, 3135, 3104, 3074, 3045, 3017, 3000, 3000, 3000, 3000,
     };
-    expected_table.resize(max_table_size, 3000);
     ASSERT_EQ(table.table, expected_table);
-    ASSERT_EQ(table.steps_count, 60u);
-    ASSERT_EQ(table.pixeltime_sum, 412616u);
+    ASSERT_EQ(table.table.size(), 60u);
+    ASSERT_EQ(table.pixeltime_sum(), 412616u);
 
 
-    table = create_slope_table(slope, 1500, StepType::FULL, 4, 8, max_table_size);
+    table = create_slope_table_for_speed(slope, 1500, StepType::FULL, 4, 8, max_table_size);
 
     expected_table = {
         54612, 54612, 20570, 15090, 12481, 10880, 9770, 8943, 8295, 7771,
@@ -284,12 +184,11 @@ void test_create_slope_table_large_full_step()
         1614, 1610, 1606, 1601, 1597, 1593, 1589, 1585, 1581, 1577,
         1573, 1569, 1565, 1561, 1557, 1554, 1550, 1546, 1542, 1539,
         1535, 1531, 1528, 1524, 1520, 1517, 1513, 1510, 1506, 1503,
-        1500,
+        1500, 1500, 1500, 1500,
     };
-    expected_table.resize(max_table_size, 1500);
     ASSERT_EQ(table.table, expected_table);
-    ASSERT_EQ(table.steps_count, 224u);
-    ASSERT_EQ(table.pixeltime_sum, 734910u);
+    ASSERT_EQ(table.table.size(), 224u);
+    ASSERT_EQ(table.pixeltime_sum(), 734910u);
 }
 
 void test_create_slope_table_large_half_step()
@@ -303,7 +202,7 @@ void test_create_slope_table_large_half_step()
     slope.max_speed_w = 1500;
     slope.acceleration = 1.013948e-9;
 
-    auto table = create_slope_table(slope, 3000, StepType::HALF, 4, 8, max_table_size);
+    auto table = create_slope_table_for_speed(slope, 3000, StepType::HALF, 4, 8, max_table_size);
 
     std::vector<std::uint16_t> expected_table = {
         27306, 27306, 10285, 7545, 6240, 5440, 4885, 4471, 4147, 3885,
@@ -311,15 +210,14 @@ void test_create_slope_table_large_half_step()
         2536, 2472, 2413, 2358, 2306, 2258, 2213, 2170, 2130, 2092,
         2055, 2021, 1988, 1957, 1927, 1899, 1872, 1846, 1821, 1797,
         1774, 1751, 1730, 1709, 1689, 1670, 1652, 1634, 1616, 1599,
-        1583, 1567, 1552, 1537, 1522, 1508, 1500,
+        1583, 1567, 1552, 1537, 1522, 1508, 1500, 1500, 1500, 1500,
     };
-    expected_table.resize(max_table_size, 1500);
     ASSERT_EQ(table.table, expected_table);
-    ASSERT_EQ(table.steps_count, 60u);
-    ASSERT_EQ(table.pixeltime_sum, 206294u);
+    ASSERT_EQ(table.table.size(), 60u);
+    ASSERT_EQ(table.pixeltime_sum(), 206294u);
 
 
-    table = create_slope_table(slope, 1500, StepType::HALF, 4, 8, max_table_size);
+    table = create_slope_table_for_speed(slope, 1500, StepType::HALF, 4, 8, max_table_size);
 
     expected_table = {
         27306, 27306, 10285, 7545, 6240, 5440, 4885, 4471, 4147, 3885,
@@ -344,17 +242,15 @@ void test_create_slope_table_large_half_step()
         807, 805, 803, 800, 798, 796, 794, 792, 790, 788,
         786, 784, 782, 780, 778, 777, 775, 773, 771, 769,
         767, 765, 764, 762, 760, 758, 756, 755, 753, 751,
-        750,
+        750, 750, 750, 750,
     };
-    expected_table.resize(max_table_size, 750);
     ASSERT_EQ(table.table, expected_table);
-    ASSERT_EQ(table.steps_count, 224u);
-    ASSERT_EQ(table.pixeltime_sum, 367399u);
+    ASSERT_EQ(table.table.size(), 224u);
+    ASSERT_EQ(table.pixeltime_sum(), 367399u);
 }
 
 void test_motor()
 {
-    test_create_slope_table3();
     test_create_slope_table_small_full_step();
     test_create_slope_table_small_full_step_target_speed_too_high();
     test_create_slope_table_small_half_step();
diff --git a/testsuite/tools/Makefile.am b/testsuite/tools/Makefile.am
index 532e904..5fd97ca 100644
--- a/testsuite/tools/Makefile.am
+++ b/testsuite/tools/Makefile.am
@@ -28,19 +28,25 @@ check: check.local
 
 check.local:
 	@echo "**** Testing $(SANEDESC) with $(TESTFILE)"
-	@for mode in ascii html-backends-split html-mfgs xml statistics usermap db udev udev+acl udev+hwdb hwdb plist hal hal-new; \
+	@pass=true; \
+	for mode in ascii html-backends-split html-mfgs xml statistics usermap db udev udev+acl udev+hwdb hwdb plist hal hal-new; \
 	do \
 	  $(SANEDESC) -m $$mode -s $(srcdir)/data >$$mode.res ;\
-	  if diff -I "[ 012][0-9]:[0-5][0-9]:[0-6][0-9] 20[0-9][0-9]" \
-	          -I "sane-backends 1\.0\.[0-9]\+\([-0-9a-fgdirty]\+\)\?$$" \
+	  if diff -I "sane-backends 1\.0\.[0-9]\+\([-0-9a-fgdirty]\+\)\?$$" \
 	       $(srcdir)/data/$$mode.ref $$mode.res ; \
 	  then \
 		echo "PASS: sane-desc -m $$mode -s $(srcdir)/data"; \
 	  else \
 		echo "FAIL: sane-desc -m $$mode -s $(srcdir)/data"; \
-		exit 1 ;\
+		pass=false ; \
 	  fi; \
 	done ;\
-	echo "================" ;\
-	echo "All tests passed" ;\
-	echo "================"
+	if `$$pass`; then \
+	  echo "================" ; \
+	  echo "All tests passed" ; \
+	  echo "================" ; \
+	else \
+	  echo "========================" ; \
+	  echo "One or more tests failed" ; \
+	  echo "========================" ; \
+	fi
diff --git a/testsuite/tools/data/db.ref b/testsuite/tools/data/db.ref
index 3828667..3df3e95 100644
--- a/testsuite/tools/data/db.ref
+++ b/testsuite/tools/data/db.ref
@@ -1,5 +1,5 @@
-# This file was automatically created based on description files (*.desc)
-# by sane-desc 3.5 from sane-backends 1.0.24git on Wed Jul 31 07:52:48 2013
+# This file was generated from description files (*.desc)
+# by sane-desc 3.6 from sane-backends 1.0.29-241-g1f9590ab
 #
 # The entries below are used to detect a USB device when it's plugged in
 # and then run a script to change the ownership and
diff --git a/testsuite/tools/data/html-backends-split.ref b/testsuite/tools/data/html-backends-split.ref
index bd8d154..1b2e8dd 100644
--- a/testsuite/tools/data/html-backends-split.ref
+++ b/testsuite/tools/data/html-backends-split.ref
@@ -16496,7 +16496,6 @@ Grandtek Scopecam
 >Contact</a>
 </address>
 <font size=-1>
-This page was last updated on Wed Jul 31 07:52:48 2013
- by sane-desc 3.5 from sane-backends 1.0.24git
+This page was created by sane-desc 3.6 from sane-backends 1.0.29-241-g1f9590ab
 </font>
 </body> </html>
diff --git a/testsuite/tools/data/html-mfgs.ref b/testsuite/tools/data/html-mfgs.ref
index 1b34bb4..3c7f2ae 100644
--- a/testsuite/tools/data/html-mfgs.ref
+++ b/testsuite/tools/data/html-mfgs.ref
@@ -23910,7 +23910,6 @@ qcam<br>(unmaintained)
 >Contact</a>
 </address>
 <font size=-1>
-This page was last updated on Wed Jul 31 07:52:48 2013
- by sane-desc 3.5 from sane-backends 1.0.24git
+This page was created by sane-desc 3.6 from sane-backends 1.0.29-241-g1f9590ab
 </font>
 </body> </html>
diff --git a/testsuite/tools/data/hwdb.ref b/testsuite/tools/data/hwdb.ref
index 9adc73f..1dd6b2a 100644
--- a/testsuite/tools/data/hwdb.ref
+++ b/testsuite/tools/data/hwdb.ref
@@ -1,5 +1,5 @@
-# This file was automatically created based on description files (*.desc)
-# by sane-desc 3.5 from sane-backends 1.0.25git on Tue Dec  3 15:24:46 2013
+# This file was generated from description files (*.desc)
+# by sane-desc 3.6 from sane-backends 1.0.29-241-g1f9590ab
 #
 # hwdb file for supported USB devices
 #
diff --git a/testsuite/tools/data/udev+acl.ref b/testsuite/tools/data/udev+acl.ref
index bcedd50..81a81d3 100644
--- a/testsuite/tools/data/udev+acl.ref
+++ b/testsuite/tools/data/udev+acl.ref
@@ -1,5 +1,5 @@
-# This file was automatically created based on description files (*.desc)
-# by sane-desc 3.5 from sane-backends 1.0.24git on Wed Jul 31 07:52:49 2013
+# This file was generated from description files (*.desc)
+# by sane-desc 3.6 from sane-backends 1.0.29-241-g1f9590ab
 #
 # udev rules file for supported USB and SCSI devices
 #
diff --git a/testsuite/tools/data/udev+hwdb.ref b/testsuite/tools/data/udev+hwdb.ref
index ead2939..2cb6ff7 100644
--- a/testsuite/tools/data/udev+hwdb.ref
+++ b/testsuite/tools/data/udev+hwdb.ref
@@ -1,5 +1,5 @@
-# This file was automatically created based on description files (*.desc)
-# by sane-desc 3.5 from sane-backends 1.0.24git on Thu Aug  1 18:50:15 2013
+# This file was generated from description files (*.desc)
+# by sane-desc 3.6 from sane-backends 1.0.29-241-g1f9590ab
 #
 # udev rules file for supported USB and SCSI devices
 #
diff --git a/testsuite/tools/data/udev.ref b/testsuite/tools/data/udev.ref
index bd448af..478e8d5 100644
--- a/testsuite/tools/data/udev.ref
+++ b/testsuite/tools/data/udev.ref
@@ -1,5 +1,5 @@
-# This file was automatically created based on description files (*.desc)
-# by sane-desc 3.5 from sane-backends 1.0.24git on Wed Jul 31 07:52:48 2013
+# This file was generated from description files (*.desc)
+# by sane-desc 3.6 from sane-backends 1.0.29-241-g1f9590ab
 #
 # udev rules file for supported USB and SCSI devices
 #
diff --git a/testsuite/tools/data/usermap.ref b/testsuite/tools/data/usermap.ref
index b1d5a9f..0b7281b 100644
--- a/testsuite/tools/data/usermap.ref
+++ b/testsuite/tools/data/usermap.ref
@@ -1,5 +1,5 @@
-# This file was automatically created based on description files (*.desc)
-# by sane-desc 3.5 from sane-backends 1.0.24git on Wed Jul 31 07:52:48 2013
+# This file was generated from description files (*.desc)
+# by sane-desc 3.6 from sane-backends 1.0.29-241-g1f9590ab
 #
 # The entries below are used to detect a USB device and change owner
 # and permissions on the "device node" used by libusb.