New upstream version 1.0.29upstream/1.0.29

1 files changed, 204 insertions, 0 deletions

diff --git a/backend/genesys/image.cpp b/backend/genesys/image.cpp
new file mode 100644
index 0000000..7d386c6
--- /dev/null
+++ b/backend/genesys/image.cpp
@@ -0,0 +1,204 @@
+/* sane - Scanner Access Now Easy.
+
+   Copyright (C) 2019 Povilas Kanapickas <povilas@radix.lt>
+
+   This file is part of the SANE package.
+
+   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 2 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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+   MA 02111-1307, USA.
+
+   As a special exception, the authors of SANE give permission for
+   additional uses of the libraries contained in this release of SANE.
+
+   The exception is that, if you link a SANE library with other files
+   to produce an executable, this does not by itself cause the
+   resulting executable to be covered by the GNU General Public
+   License.  Your use of that executable is in no way restricted on
+   account of linking the SANE library code into it.
+
+   This exception does not, however, invalidate any other reasons why
+   the executable file might be covered by the GNU General Public
+   License.
+
+   If you submit changes to SANE to the maintainers to be included in
+   a subsequent release, you agree by submitting the changes that
+   those changes may be distributed with this exception intact.
+
+   If you write modifications of your own for SANE, it is your choice
+   whether to permit this exception to apply to your modifications.
+   If you do not wish that, delete this exception notice.
+*/
+
+#define DEBUG_DECLARE_ONLY
+
+#include "image.h"
+
+#include <array>
+
+namespace genesys {
+
+Image::Image() = default;
+
+Image::Image(std::size_t width, std::size_t height, PixelFormat format) :
+    width_{width},
+    height_{height},
+    format_{format},
+    row_bytes_{get_pixel_row_bytes(format_, width_)}
+{
+    data_.resize(get_row_bytes() * height);
+}
+
+std::uint8_t* Image::get_row_ptr(std::size_t y)
+{
+    return data_.data() + row_bytes_ * y;
+}
+
+const std::uint8_t* Image::get_row_ptr(std::size_t y) const
+{
+    return data_.data() + row_bytes_ * y;
+}
+
+Pixel Image::get_pixel(std::size_t x, std::size_t y) const
+{
+    return get_pixel_from_row(get_row_ptr(y), x, format_);
+}
+
+void Image::set_pixel(std::size_t x, std::size_t y, const Pixel& pixel)
+{
+    set_pixel_to_row(get_row_ptr(y), x, pixel, format_);
+}
+
+RawPixel Image::get_raw_pixel(std::size_t x, std::size_t y) const
+{
+    return get_raw_pixel_from_row(get_row_ptr(y), x, format_);
+}
+
+std::uint16_t Image::get_raw_channel(std::size_t x, std::size_t y, unsigned channel) const
+{
+    return get_raw_channel_from_row(get_row_ptr(y), x, channel, format_);
+}
+
+void Image::set_raw_pixel(std::size_t x, std::size_t y, const RawPixel& pixel)
+{
+    set_raw_pixel_to_row(get_row_ptr(y), x, pixel, format_);
+}
+
+void Image::resize(std::size_t width, std::size_t height, PixelFormat format)
+{
+    width_ = width;
+    height_ = height;
+    format_ = format;
+    row_bytes_ = get_pixel_row_bytes(format_, width_);
+    data_.resize(get_row_bytes() * height);
+}
+
+template<PixelFormat SrcFormat, PixelFormat DstFormat>
+void convert_pixel_row_impl2(const std::uint8_t* in_data, std::uint8_t* out_data,
+                             std::size_t count)
+{
+    for (std::size_t i = 0; i < count; ++i) {
+        Pixel pixel = get_pixel_from_row(in_data, i, SrcFormat);
+        set_pixel_to_row(out_data, i, pixel, DstFormat);
+    }
+}
+
+template<PixelFormat SrcFormat>
+void convert_pixel_row_impl(const std::uint8_t* in_data, std::uint8_t* out_data,
+                            PixelFormat out_format, std::size_t count)
+{
+    switch (out_format) {
+        case PixelFormat::I1: {
+            convert_pixel_row_impl2<SrcFormat, PixelFormat::I1>(in_data, out_data, count);
+            return;
+        }
+        case PixelFormat::RGB111: {
+            convert_pixel_row_impl2<SrcFormat, PixelFormat::RGB111>(in_data, out_data, count);
+            return;
+        }
+        case PixelFormat::I8: {
+            convert_pixel_row_impl2<SrcFormat, PixelFormat::I8>(in_data, out_data, count);
+            return;
+        }
+        case PixelFormat::RGB888: {
+            convert_pixel_row_impl2<SrcFormat, PixelFormat::RGB888>(in_data, out_data, count);
+            return;
+        }
+        case PixelFormat::BGR888: {
+            convert_pixel_row_impl2<SrcFormat, PixelFormat::BGR888>(in_data, out_data, count);
+            return;
+        }
+        case PixelFormat::I16: {
+            convert_pixel_row_impl2<SrcFormat, PixelFormat::I16>(in_data, out_data, count);
+            return;
+        }
+        case PixelFormat::RGB161616: {
+            convert_pixel_row_impl2<SrcFormat, PixelFormat::RGB161616>(in_data, out_data, count);
+            return;
+        }
+        case PixelFormat::BGR161616: {
+            convert_pixel_row_impl2<SrcFormat, PixelFormat::BGR161616>(in_data, out_data, count);
+            return;
+        }
+        default:
+            throw SaneException("Unknown pixel format %d", static_cast<unsigned>(out_format));
+    }
+}
+void convert_pixel_row_format(const std::uint8_t* in_data, PixelFormat in_format,
+                              std::uint8_t* out_data, PixelFormat out_format, std::size_t count)
+{
+    if (in_format == out_format) {
+        std::memcpy(out_data, in_data, get_pixel_row_bytes(in_format, count));
+        return;
+    }
+
+    switch (in_format) {
+        case PixelFormat::I1: {
+            convert_pixel_row_impl<PixelFormat::I1>(in_data, out_data, out_format, count);
+            return;
+        }
+        case PixelFormat::RGB111: {
+            convert_pixel_row_impl<PixelFormat::RGB111>(in_data, out_data, out_format, count);
+            return;
+        }
+        case PixelFormat::I8: {
+            convert_pixel_row_impl<PixelFormat::I8>(in_data, out_data, out_format, count);
+            return;
+        }
+        case PixelFormat::RGB888: {
+            convert_pixel_row_impl<PixelFormat::RGB888>(in_data, out_data, out_format, count);
+            return;
+        }
+        case PixelFormat::BGR888: {
+            convert_pixel_row_impl<PixelFormat::BGR888>(in_data, out_data, out_format, count);
+            return;
+        }
+        case PixelFormat::I16: {
+            convert_pixel_row_impl<PixelFormat::I16>(in_data, out_data, out_format, count);
+            return;
+        }
+        case PixelFormat::RGB161616: {
+            convert_pixel_row_impl<PixelFormat::RGB161616>(in_data, out_data, out_format, count);
+            return;
+        }
+        case PixelFormat::BGR161616: {
+            convert_pixel_row_impl<PixelFormat::BGR161616>(in_data, out_data, out_format, count);
+            return;
+        }
+        default:
+            throw SaneException("Unknown pixel format %d", static_cast<unsigned>(in_format));
+    }
+}
+
+} // namespace genesys