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image: Load images that contain CMYK data into a CMYKBitmap

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Every single of images's functions then go ahead and error out on
CMYKBitmaps for now.

(Alternatively, we could make them the low-quality CMYK->RGB
conversion that previously happened implicitly, but let's go
with this for now.)

(With this structure, we could also do something smarter for
Vector images in the future.)

Here's how this looks:

    % Build/lagom/bin/image \
        -o out.png Tests/LibGfx/test-inputs/jpg/ycck-2111.jpg
    Runtime error: Can't save CMYK bitmaps yet, convert to RGB first
                   with --convert-to-color-profile

    % Build/lagom/bin/image \
        --convert-to-color-profile serenity-sRGB.icc \
        -o out.png Tests/LibGfx/test-inputs/jpg/ycck-2111.jpg
    Runtime error: No source color space embedded in image.
                   Pass one with --assign-color-profile.

    % Build/lagom/bin/image \
        --assign-color-profile path/to/CMYK/USWebCoatedSWOP.icc \
        --convert-to-color-profile serenity-sRGB.icc \
        -o out.png Tests/LibGfx/test-inputs/jpg/ycck-2111.jpg
    Runtime error: Psych, can't convert CMYK bitmaps yet either

As usual, serenity-sRGB.icc is from
`Build/lagom/bin/icc  -n sRGB --reencode-to serenity-sRGB.icc` and
the adobe cmyk profiles are available at
https://www.adobe.com/support/downloads/iccprofiles/iccprofiles_win.html
which ultimately leads to:
https://download.adobe.com/pub/adobe/iccprofiles/win/AdobeICCProfilesCS4Win_end-user.zip
This commit is contained in:
Nico Weber 2024-01-24 10:31:56 -05:00 committed by Andreas Kling
parent c6eac16d00
commit 0acc370f7b
Notes: sideshowbarker 2024-07-17 02:29:45 +09:00 
Author: https://github.com/nico
Commit: https://github.com/SerenityOS/serenity/commit/0acc370f7b
Pull-request: https://github.com/SerenityOS/serenity/pull/22922
Reviewed-by: https://github.com/LucasChollet ✅
1 changed files with 41 additions and 10 deletions
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51
Userland/Utilities/image.cpp
View File

@ -15,19 +15,39 @@
#include <LibGfx/ImageFormats/PortableFormatWriter.h>
#include <LibGfx/ImageFormats/QOIWriter.h>
using AnyBitmap = Variant<RefPtr<Gfx::Bitmap>, RefPtr<Gfx::CMYKBitmap>>;
struct LoadedImage {
RefPtr<Gfx::Bitmap> bitmap;
Gfx::NaturalFrameFormat internal_format;
AnyBitmap bitmap;
Optional<ReadonlyBytes> icc_data;
};
static ErrorOr<LoadedImage> load_image(RefPtr<Gfx::ImageDecoder> const& decoder, int frame_index)
{
return LoadedImage { TRY(decoder->frame(frame_index)).image, TRY(decoder->icc_data()) };
auto internal_format = decoder->natural_frame_format();
auto bitmap = TRY([&]() -> ErrorOr<AnyBitmap> {
switch (internal_format) {
case Gfx::NaturalFrameFormat::RGB:
case Gfx::NaturalFrameFormat::Grayscale:
case Gfx::NaturalFrameFormat::Vector:
return TRY(decoder->frame(frame_index)).image;
case Gfx::NaturalFrameFormat::CMYK:
return RefPtr(TRY(decoder->cmyk_frame()));
}
VERIFY_NOT_REACHED();
}());
return LoadedImage { internal_format, move(bitmap), TRY(decoder->icc_data()) };
}
static ErrorOr<void> do_move_alpha_to_rgb(LoadedImage& image)
{
auto frame = image.bitmap;
if (!image.bitmap.has<RefPtr<Gfx::Bitmap>>())
return Error::from_string_view("Can't --move-alpha-to-rgb with CMYK bitmaps"sv);
auto& frame = image.bitmap.get<RefPtr<Gfx::Bitmap>>();
switch (frame->format()) {
case Gfx::BitmapFormat::Invalid:
return Error::from_string_view("Can't --move-alpha-to-rgb with invalid bitmaps"sv);
@ -49,7 +69,10 @@ static ErrorOr<void> do_move_alpha_to_rgb(LoadedImage& image)
static ErrorOr<void> do_strip_alpha(LoadedImage& image)
{
auto frame = image.bitmap;
if (!image.bitmap.has<RefPtr<Gfx::Bitmap>>())
return Error::from_string_view("Can't --strip-alpha with CMYK bitmaps"sv);
auto& frame = image.bitmap.get<RefPtr<Gfx::Bitmap>>();
switch (frame->format()) {
case Gfx::BitmapFormat::Invalid:
return Error::from_string_view("Can't --strip-alpha with invalid bitmaps"sv);
@ -70,6 +93,10 @@ static ErrorOr<OwnPtr<Core::MappedFile>> convert_image_profile(LoadedImage& imag
if (!image.icc_data.has_value())
return Error::from_string_view("No source color space embedded in image. Pass one with --assign-color-profile."sv);
if (!image.bitmap.has<RefPtr<Gfx::Bitmap>>())
return Error::from_string_view("Psych, can't convert CMYK bitmaps yet either"sv);
auto& frame = image.bitmap.get<RefPtr<Gfx::Bitmap>>();
auto source_icc_file = move(maybe_source_icc_file);
auto source_icc_data = image.icc_data.value();
auto icc_file = TRY(Core::MappedFile::map(convert_color_profile_path));
@ -77,33 +104,37 @@ static ErrorOr<OwnPtr<Core::MappedFile>> convert_image_profile(LoadedImage& imag
auto source_profile = TRY(Gfx::ICC::Profile::try_load_from_externally_owned_memory(source_icc_data));
auto destination_profile = TRY(Gfx::ICC::Profile::try_load_from_externally_owned_memory(icc_file->bytes()));
TRY(destination_profile->convert_image(*image.bitmap, *source_profile));
TRY(destination_profile->convert_image(*frame, *source_profile));
return icc_file;
}
static ErrorOr<void> save_image(LoadedImage& image, StringView out_path, bool ppm_ascii, u8 jpeg_quality)
{
if (!image.bitmap.has<RefPtr<Gfx::Bitmap>>())
return Error::from_string_view("Can't save CMYK bitmaps yet, convert to RGB first with --convert-to-color-profile"sv);
auto& frame = image.bitmap.get<RefPtr<Gfx::Bitmap>>();
auto output_stream = TRY(Core::File::open(out_path, Core::File::OpenMode::Write));
auto buffered_stream = TRY(Core::OutputBufferedFile::create(move(output_stream)));
if (out_path.ends_with(".jpg"sv, CaseSensitivity::CaseInsensitive) || out_path.ends_with(".jpeg"sv, CaseSensitivity::CaseInsensitive)) {
TRY(Gfx::JPEGWriter::encode(*buffered_stream, *image.bitmap, { .quality = jpeg_quality }));
TRY(Gfx::JPEGWriter::encode(*buffered_stream, *frame, { .quality = jpeg_quality }));
return {};
}
if (out_path.ends_with(".ppm"sv, CaseSensitivity::CaseInsensitive)) {
auto const format = ppm_ascii ? Gfx::PortableFormatWriter::Options::Format::ASCII : Gfx::PortableFormatWriter::Options::Format::Raw;
TRY(Gfx::PortableFormatWriter::encode(*buffered_stream, *image.bitmap, { .format = format }));
TRY(Gfx::PortableFormatWriter::encode(*buffered_stream, *frame, { .format = format }));
return {};
}
ByteBuffer bytes;
if (out_path.ends_with(".bmp"sv, CaseSensitivity::CaseInsensitive)) {
bytes = TRY(Gfx::BMPWriter::encode(*image.bitmap, { .icc_data = image.icc_data }));
bytes = TRY(Gfx::BMPWriter::encode(*frame, { .icc_data = image.icc_data }));
} else if (out_path.ends_with(".png"sv, CaseSensitivity::CaseInsensitive)) {
bytes = TRY(Gfx::PNGWriter::encode(*image.bitmap, { .icc_data = image.icc_data }));
bytes = TRY(Gfx::PNGWriter::encode(*frame, { .icc_data = image.icc_data }));
} else if (out_path.ends_with(".qoi"sv, CaseSensitivity::CaseInsensitive)) {
bytes = TRY(Gfx::QOIWriter::encode(*image.bitmap));
bytes = TRY(Gfx::QOIWriter::encode(*frame));
} else {
return Error::from_string_view("can only write .bmp, .jpg, .png, .ppm, and .qoi"sv);
}