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3a5d20d82b
If --measure is passed, icc prints the color pairs with the smallest and largest perceptual difference between them. Converting 254 * 254 * 254 * 4 = 65 Million colors from sRGB to LAB and then computing 254 * 254 * 254 * 3 = 49 Million DeltaEs between them takes a while. On my laptop, it takes 17s to run. So there's a small progress display.
562 lines
30 KiB
C++
562 lines
30 KiB
C++
/*
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* Copyright (c) 2022-2023, Nico Weber <thakis@chromium.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/String.h>
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#include <AK/StringView.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/DateTime.h>
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#include <LibCore/File.h>
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#include <LibCore/MappedFile.h>
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#include <LibGfx/DeltaE.h>
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#include <LibGfx/ICC/BinaryWriter.h>
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#include <LibGfx/ICC/Profile.h>
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#include <LibGfx/ICC/Tags.h>
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#include <LibGfx/ICC/WellKnownProfiles.h>
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#include <LibGfx/ImageFormats/ImageDecoder.h>
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#include <LibVideo/Color/CodingIndependentCodePoints.h>
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template<class T>
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static ErrorOr<String> hyperlink(URL const& target, T const& label)
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{
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return String::formatted("\033]8;;{}\033\\{}\033]8;;\033\\", target, label);
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}
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template<class T>
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static void out_optional(char const* label, Optional<T> const& optional)
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{
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out("{}: ", label);
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if (optional.has_value())
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outln("{}", *optional);
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else
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outln("(not set)");
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}
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static void out_curve(Gfx::ICC::CurveTagData const& curve, int indent_amount)
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{
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if (curve.values().is_empty()) {
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outln("{: >{}}identity curve", "", indent_amount);
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} else if (curve.values().size() == 1) {
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outln("{: >{}}gamma: {}", "", indent_amount, FixedPoint<8, u16>::create_raw(curve.values()[0]));
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} else {
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// FIXME: Maybe print the actual points if -v is passed?
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outln("{: >{}}curve with {} points", "", indent_amount, curve.values().size());
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}
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}
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static void out_parametric_curve(Gfx::ICC::ParametricCurveTagData const& parametric_curve, int indent_amount)
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{
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switch (parametric_curve.function_type()) {
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case Gfx::ICC::ParametricCurveTagData::FunctionType::Type0:
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outln("{: >{}}Y = X**{}", "", indent_amount, parametric_curve.g());
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break;
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case Gfx::ICC::ParametricCurveTagData::FunctionType::Type1:
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outln("{: >{}}Y = ({}*X + {})**{} if X >= -{}/{}", "", indent_amount,
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parametric_curve.a(), parametric_curve.b(), parametric_curve.g(), parametric_curve.b(), parametric_curve.a());
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outln("{: >{}}Y = 0 else", "", indent_amount);
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break;
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case Gfx::ICC::ParametricCurveTagData::FunctionType::Type2:
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outln("{: >{}}Y = ({}*X + {})**{} + {} if X >= -{}/{}", "", indent_amount,
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parametric_curve.a(), parametric_curve.b(), parametric_curve.g(), parametric_curve.c(), parametric_curve.b(), parametric_curve.a());
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outln("{: >{}}Y = {} else", "", indent_amount, parametric_curve.c());
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break;
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case Gfx::ICC::ParametricCurveTagData::FunctionType::Type3:
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outln("{: >{}}Y = ({}*X + {})**{} if X >= {}", "", indent_amount,
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parametric_curve.a(), parametric_curve.b(), parametric_curve.g(), parametric_curve.d());
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outln("{: >{}}Y = {}*X else", "", indent_amount, parametric_curve.c());
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break;
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case Gfx::ICC::ParametricCurveTagData::FunctionType::Type4:
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outln("{: >{}}Y = ({}*X + {})**{} + {} if X >= {}", "", indent_amount,
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parametric_curve.a(), parametric_curve.b(), parametric_curve.g(), parametric_curve.e(), parametric_curve.d());
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outln("{: >{}}Y = {}*X + {} else", "", indent_amount, parametric_curve.c(), parametric_curve.f());
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break;
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}
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}
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static float curve_distance_u8(Gfx::ICC::TagData const& tag1, Gfx::ICC::TagData const& tag2)
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{
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VERIFY(tag1.type() == Gfx::ICC::CurveTagData::Type || tag1.type() == Gfx::ICC::ParametricCurveTagData::Type);
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VERIFY(tag2.type() == Gfx::ICC::CurveTagData::Type || tag2.type() == Gfx::ICC::ParametricCurveTagData::Type);
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float curve1_data[256];
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if (tag1.type() == Gfx::ICC::CurveTagData::Type) {
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auto& curve1 = static_cast<Gfx::ICC::CurveTagData const&>(tag1);
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for (int i = 0; i < 256; ++i)
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curve1_data[i] = curve1.evaluate(i / 255.f);
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} else {
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auto& parametric_curve1 = static_cast<Gfx::ICC::ParametricCurveTagData const&>(tag1);
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for (int i = 0; i < 256; ++i)
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curve1_data[i] = parametric_curve1.evaluate(i / 255.f);
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}
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float curve2_data[256];
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if (tag2.type() == Gfx::ICC::CurveTagData::Type) {
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auto& curve2 = static_cast<Gfx::ICC::CurveTagData const&>(tag2);
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for (int i = 0; i < 256; ++i)
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curve2_data[i] = curve2.evaluate(i / 255.f);
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} else {
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auto& parametric_curve2 = static_cast<Gfx::ICC::ParametricCurveTagData const&>(tag2);
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for (int i = 0; i < 256; ++i)
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curve2_data[i] = parametric_curve2.evaluate(i / 255.f);
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}
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float distance = 0;
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for (int i = 0; i < 256; ++i)
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distance += fabsf(curve1_data[i] - curve2_data[i]);
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return distance;
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}
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static ErrorOr<void> out_curve_tag(Gfx::ICC::TagData const& tag, int indent_amount)
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{
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VERIFY(tag.type() == Gfx::ICC::CurveTagData::Type || tag.type() == Gfx::ICC::ParametricCurveTagData::Type);
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if (tag.type() == Gfx::ICC::CurveTagData::Type)
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out_curve(static_cast<Gfx::ICC::CurveTagData const&>(tag), indent_amount);
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if (tag.type() == Gfx::ICC::ParametricCurveTagData::Type)
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out_parametric_curve(static_cast<Gfx::ICC::ParametricCurveTagData const&>(tag), indent_amount);
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auto sRGB_curve = TRY(Gfx::ICC::sRGB_curve());
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// Some example values (for abs distance summed over the 256 values of an u8):
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// In Compact-ICC-Profiles/profiles:
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// AdobeCompat-v2.icc: 1.14 (this is a gamma 2.2 curve, so not really sRGB but close)
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// AdobeCompat-v4.icc: 1.13
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// AppleCompat-v2.icc: 11.94 (gamma 1.8 curve)
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// DCI-P3-v4.icc: 8.29 (gamma 2.6 curve)
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// DisplayP3-v2-magic.icc: 0.000912 (looks sRGB-ish)
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// DisplayP3-v2-micro.icc: 0.010819
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// DisplayP3-v4.icc: 0.001062 (yes, definitely sRGB)
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// Rec2020-g24-v4.icc: 4.119216 (gamma 2.4 curve)
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// Rec2020-v4.icc: 7.805417 (custom non-sRGB curve)
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// Rec709-v4.icc: 7.783267 (same custom non-sRGB curve as Rec2020)
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// sRGB-v2-magic.icc: 0.000912
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// sRGB-v2-micro.icc: 0.010819
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// sRGB-v2-nano.icc: 0.052516
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// sRGB-v4.icc: 0.001062
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// scRGB-v2.icc: 48.379859 (linear identity curve)
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// Google sRGB IEC61966-2.1 (from a Pixel jpeg, parametric): 0
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// Google sRGB IEC61966-2.1 (from a Pixel jpeg, LUT curve): 0.00096
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// Apple 2015 Display P3 (from iPhone 7, parametric): 0.011427 (has the old, left intersection for switching from linear to exponent)
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// HP sRGB: 0.00096
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// color.org sRGB2014.icc: 0.00096
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// color.org sRGB_ICC_v4_Appearance.icc, AToB1Tag, a curves: 0.441926 -- but this is not _really_ sRGB
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// color.org sRGB_v4_ICC_preference.icc, AToB1Tag, a curves: 2.205453 -- not really sRGB either
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// So `< 0.06` identifies sRGB in practice (for u8 values).
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float u8_distance_to_sRGB = curve_distance_u8(*sRGB_curve, tag);
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if (u8_distance_to_sRGB < 0.06f)
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outln("{: >{}}Looks like sRGB's curve (distance {})", "", indent_amount, u8_distance_to_sRGB);
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else
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outln("{: >{}}Does not look like sRGB's curve (distance: {})", "", indent_amount, u8_distance_to_sRGB);
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return {};
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}
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static ErrorOr<void> out_curves(Vector<Gfx::ICC::LutCurveType> const& curves)
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{
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for (auto const& curve : curves) {
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VERIFY(curve->type() == Gfx::ICC::CurveTagData::Type || curve->type() == Gfx::ICC::ParametricCurveTagData::Type);
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outln(" type {}, relative offset {}, size {}", curve->type(), curve->offset(), curve->size());
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TRY(out_curve_tag(*curve, /*indent=*/12));
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}
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return {};
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}
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static ErrorOr<void> print_profile_measurement(Gfx::ICC::Profile const& profile)
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{
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auto lab_from_rgb = [&profile](u8 r, u8 g, u8 b) {
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u8 rgb[3] = { r, g, b };
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return profile.to_lab(rgb);
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};
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float largest = -1, smallest = 1000;
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Color largest_color1, largest_color2, smallest_color1, smallest_color2;
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for (u8 r = 0; r < 254; ++r) {
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out("\r{}/254", r + 1);
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fflush(stdout);
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for (u8 g = 0; g < 254; ++g) {
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for (u8 b = 0; b < 254; ++b) {
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auto lab = TRY(lab_from_rgb(r, g, b));
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u8 delta_r[] = { 1, 0, 0 };
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u8 delta_g[] = { 0, 1, 0 };
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u8 delta_b[] = { 0, 0, 1 };
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for (unsigned i = 0; i < sizeof(delta_r); ++i) {
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auto lab2 = TRY(lab_from_rgb(r + delta_r[i], g + delta_g[i], b + delta_b[i]));
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float delta = Gfx::DeltaE(lab, lab2);
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if (delta > largest) {
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largest = delta;
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largest_color1 = Color(r, g, b);
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largest_color2 = Color(r + delta_r[i], g + delta_g[i], b + delta_b[i]);
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}
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if (delta < smallest) {
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smallest = delta;
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smallest_color1 = Color(r, g, b);
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smallest_color2 = Color(r + delta_r[i], g + delta_g[i], b + delta_b[i]);
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}
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}
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}
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}
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}
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outln("\rlargest difference between neighboring colors: {}, between {} and {}", largest, largest_color1, largest_color2);
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outln("smallest difference between neighboring colors: {}, between {} and {}", smallest, smallest_color1, smallest_color2);
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return {};
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}
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ErrorOr<int> serenity_main(Main::Arguments arguments)
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{
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Core::ArgsParser args_parser;
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StringView path;
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args_parser.add_positional_argument(path, "Path to ICC profile or to image containing ICC profile", "FILE", Core::ArgsParser::Required::No);
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StringView name;
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args_parser.add_option(name, "Name of a built-in profile, such as 'sRGB'", "name", 'n', "NAME");
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StringView dump_out_path;
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args_parser.add_option(dump_out_path, "Dump unmodified ICC profile bytes to this path", "dump-to", 0, "FILE");
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StringView reencode_out_path;
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args_parser.add_option(reencode_out_path, "Reencode ICC profile to this path", "reencode-to", 0, "FILE");
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bool measure = false;
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args_parser.add_option(measure, "For RGB ICC profiles, print perceptually smallest and largest color step", "measure", 0);
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bool force_print = false;
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args_parser.add_option(force_print, "Print profile even when writing ICC files", "print", 0);
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args_parser.parse(arguments);
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if (path.is_empty() && name.is_empty()) {
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warnln("need either a path or a profile name");
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return 1;
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}
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if (!path.is_empty() && !name.is_empty()) {
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warnln("can't have both a path and a profile name");
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return 1;
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}
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if (path.is_empty() && !dump_out_path.is_empty()) {
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warnln("--dump-to only valid with path, not with profile name; use --reencode-to instead");
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return 1;
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}
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ReadonlyBytes icc_bytes;
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NonnullRefPtr<Gfx::ICC::Profile> profile = TRY([&]() -> ErrorOr<NonnullRefPtr<Gfx::ICC::Profile>> {
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if (!name.is_empty()) {
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if (name == "sRGB")
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return Gfx::ICC::sRGB();
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return Error::from_string_literal("unknown profile name");
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}
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auto file = TRY(Core::MappedFile::map(path));
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auto decoder = Gfx::ImageDecoder::try_create_for_raw_bytes(file->bytes());
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if (decoder) {
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if (auto embedded_icc_bytes = TRY(decoder->icc_data()); embedded_icc_bytes.has_value()) {
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icc_bytes = *embedded_icc_bytes;
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} else {
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outln("image contains no embedded ICC profile");
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exit(1);
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}
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} else {
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icc_bytes = file->bytes();
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}
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if (!dump_out_path.is_empty()) {
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auto output_stream = TRY(Core::File::open(dump_out_path, Core::File::OpenMode::Write));
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TRY(output_stream->write_until_depleted(icc_bytes));
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}
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return Gfx::ICC::Profile::try_load_from_externally_owned_memory(icc_bytes);
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}());
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if (!reencode_out_path.is_empty()) {
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auto reencoded_bytes = TRY(Gfx::ICC::encode(profile));
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auto output_stream = TRY(Core::File::open(reencode_out_path, Core::File::OpenMode::Write));
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TRY(output_stream->write_until_depleted(reencoded_bytes));
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}
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if (measure) {
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if (profile->data_color_space() != Gfx::ICC::ColorSpace::RGB) {
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warnln("--measure only works for RGB ICC profiles");
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return 1;
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}
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TRY(print_profile_measurement(*profile));
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}
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bool do_print = (dump_out_path.is_empty() && reencode_out_path.is_empty() && !measure) || force_print;
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if (!do_print)
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return 0;
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outln(" size: {} bytes", profile->on_disk_size());
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out_optional(" preferred CMM type", profile->preferred_cmm_type());
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outln(" version: {}", profile->version());
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outln(" device class: {}", Gfx::ICC::device_class_name(profile->device_class()));
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outln(" data color space: {}", Gfx::ICC::data_color_space_name(profile->data_color_space()));
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outln(" connection space: {}", Gfx::ICC::profile_connection_space_name(profile->connection_space()));
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outln("creation date and time: {}", Core::DateTime::from_timestamp(profile->creation_timestamp()));
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out_optional(" primary platform", profile->primary_platform().map([](auto platform) { return primary_platform_name(platform); }));
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auto flags = profile->flags();
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outln(" flags: 0x{:08x}", flags.bits());
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outln(" - {}embedded in file", flags.is_embedded_in_file() ? "" : "not ");
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outln(" - can{} be used independently of embedded color data", flags.can_be_used_independently_of_embedded_color_data() ? "" : "not");
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if (auto unknown_icc_bits = flags.icc_bits() & ~Gfx::ICC::Flags::KnownBitsMask)
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outln(" other unknown ICC bits: 0x{:04x}", unknown_icc_bits);
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if (auto color_management_module_bits = flags.color_management_module_bits())
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outln(" CMM bits: 0x{:04x}", color_management_module_bits);
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out_optional(" device manufacturer", TRY(profile->device_manufacturer().map([](auto device_manufacturer) {
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return hyperlink(device_manufacturer_url(device_manufacturer), device_manufacturer);
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})));
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out_optional(" device model", TRY(profile->device_model().map([](auto device_model) {
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return hyperlink(device_model_url(device_model), device_model);
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})));
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auto device_attributes = profile->device_attributes();
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outln(" device attributes: 0x{:016x}", device_attributes.bits());
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outln(" media is:");
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outln(" - {}",
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device_attributes.media_reflectivity() == Gfx::ICC::DeviceAttributes::MediaReflectivity::Reflective ? "reflective" : "transparent");
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outln(" - {}",
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device_attributes.media_glossiness() == Gfx::ICC::DeviceAttributes::MediaGlossiness::Glossy ? "glossy" : "matte");
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outln(" - {}",
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device_attributes.media_polarity() == Gfx::ICC::DeviceAttributes::MediaPolarity::Positive ? "of positive polarity" : "of negative polarity");
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outln(" - {}",
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device_attributes.media_color() == Gfx::ICC::DeviceAttributes::MediaColor::Colored ? "colored" : "black and white");
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VERIFY((flags.icc_bits() & ~Gfx::ICC::DeviceAttributes::KnownBitsMask) == 0);
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if (auto vendor_bits = device_attributes.vendor_bits())
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outln(" vendor bits: 0x{:08x}", vendor_bits);
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outln(" rendering intent: {}", Gfx::ICC::rendering_intent_name(profile->rendering_intent()));
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outln(" pcs illuminant: {}", profile->pcs_illuminant());
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out_optional(" creator", profile->creator());
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out_optional(" id", profile->id());
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size_t profile_disk_size = icc_bytes.size();
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if (profile_disk_size != profile->on_disk_size()) {
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VERIFY(profile_disk_size > profile->on_disk_size());
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outln("{} trailing bytes after profile data", profile_disk_size - profile->on_disk_size());
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}
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outln("");
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outln("tags:");
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HashMap<Gfx::ICC::TagData*, Gfx::ICC::TagSignature> tag_data_to_first_signature;
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TRY(profile->try_for_each_tag([&tag_data_to_first_signature](auto tag_signature, auto tag_data) -> ErrorOr<void> {
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if (auto name = tag_signature_spec_name(tag_signature); name.has_value())
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out("{} ({}): ", *name, tag_signature);
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else
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out("Unknown tag ({}): ", tag_signature);
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outln("type {}, offset {}, size {}", tag_data->type(), tag_data->offset(), tag_data->size());
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// Print tag data only the first time it's seen.
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// (Different sigatures can refer to the same data.)
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auto it = tag_data_to_first_signature.find(tag_data);
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if (it != tag_data_to_first_signature.end()) {
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outln(" (see {} above)", it->value);
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return {};
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}
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tag_data_to_first_signature.set(tag_data, tag_signature);
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if (tag_data->type() == Gfx::ICC::ChromaticityTagData::Type) {
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auto& chromaticity = static_cast<Gfx::ICC::ChromaticityTagData&>(*tag_data);
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outln(" phosphor or colorant type: {}", Gfx::ICC::ChromaticityTagData::phosphor_or_colorant_type_name(chromaticity.phosphor_or_colorant_type()));
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for (auto const& xy : chromaticity.xy_coordinates())
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outln(" x, y: {}, {}", xy.x, xy.y);
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} else if (tag_data->type() == Gfx::ICC::CicpTagData::Type) {
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auto& cicp = static_cast<Gfx::ICC::CicpTagData&>(*tag_data);
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outln(" color primaries: {} - {}", cicp.color_primaries(),
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Video::color_primaries_to_string((Video::ColorPrimaries)cicp.color_primaries()));
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outln(" transfer characteristics: {} - {}", cicp.transfer_characteristics(),
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Video::transfer_characteristics_to_string((Video::TransferCharacteristics)cicp.transfer_characteristics()));
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outln(" matrix coefficients: {} - {}", cicp.matrix_coefficients(),
|
|
Video::matrix_coefficients_to_string((Video::MatrixCoefficients)cicp.matrix_coefficients()));
|
|
outln(" video full range flag: {} - {}", cicp.video_full_range_flag(),
|
|
Video::video_full_range_flag_to_string((Video::VideoFullRangeFlag)cicp.video_full_range_flag()));
|
|
} else if (tag_data->type() == Gfx::ICC::CurveTagData::Type) {
|
|
TRY(out_curve_tag(*tag_data, /*indent=*/4));
|
|
} else if (tag_data->type() == Gfx::ICC::Lut16TagData::Type) {
|
|
auto& lut16 = static_cast<Gfx::ICC::Lut16TagData&>(*tag_data);
|
|
outln(" input table: {} channels x {} entries", lut16.number_of_input_channels(), lut16.number_of_input_table_entries());
|
|
outln(" output table: {} channels x {} entries", lut16.number_of_output_channels(), lut16.number_of_output_table_entries());
|
|
outln(" color lookup table: {} grid points, {} total entries", lut16.number_of_clut_grid_points(), lut16.clut_values().size());
|
|
|
|
auto const& e = lut16.e_matrix();
|
|
outln(" e = [ {}, {}, {},", e[0], e[1], e[2]);
|
|
outln(" {}, {}, {},", e[3], e[4], e[5]);
|
|
outln(" {}, {}, {} ]", e[6], e[7], e[8]);
|
|
} else if (tag_data->type() == Gfx::ICC::Lut8TagData::Type) {
|
|
auto& lut8 = static_cast<Gfx::ICC::Lut8TagData&>(*tag_data);
|
|
outln(" input table: {} channels x {} entries", lut8.number_of_input_channels(), lut8.number_of_input_table_entries());
|
|
outln(" output table: {} channels x {} entries", lut8.number_of_output_channels(), lut8.number_of_output_table_entries());
|
|
outln(" color lookup table: {} grid points, {} total entries", lut8.number_of_clut_grid_points(), lut8.clut_values().size());
|
|
|
|
auto const& e = lut8.e_matrix();
|
|
outln(" e = [ {}, {}, {},", e[0], e[1], e[2]);
|
|
outln(" {}, {}, {},", e[3], e[4], e[5]);
|
|
outln(" {}, {}, {} ]", e[6], e[7], e[8]);
|
|
} else if (tag_data->type() == Gfx::ICC::LutAToBTagData::Type) {
|
|
auto& a_to_b = static_cast<Gfx::ICC::LutAToBTagData&>(*tag_data);
|
|
outln(" {} input channels, {} output channels", a_to_b.number_of_input_channels(), a_to_b.number_of_output_channels());
|
|
|
|
if (auto const& optional_a_curves = a_to_b.a_curves(); optional_a_curves.has_value()) {
|
|
outln(" a curves: {} curves", optional_a_curves->size());
|
|
TRY(out_curves(optional_a_curves.value()));
|
|
} else {
|
|
outln(" a curves: (not set)");
|
|
}
|
|
|
|
if (auto const& optional_clut = a_to_b.clut(); optional_clut.has_value()) {
|
|
auto const& clut = optional_clut.value();
|
|
outln(" color lookup table: {} grid points, {}",
|
|
TRY(String::join(" x "sv, clut.number_of_grid_points_in_dimension)),
|
|
TRY(clut.values.visit(
|
|
[](Vector<u8> const& v) { return String::formatted("{} u8 entries", v.size()); },
|
|
[](Vector<u16> const& v) { return String::formatted("{} u16 entries", v.size()); })));
|
|
} else {
|
|
outln(" color lookup table: (not set)");
|
|
}
|
|
|
|
if (auto const& optional_m_curves = a_to_b.m_curves(); optional_m_curves.has_value()) {
|
|
outln(" m curves: {} curves", optional_m_curves->size());
|
|
TRY(out_curves(optional_m_curves.value()));
|
|
} else {
|
|
outln(" m curves: (not set)");
|
|
}
|
|
|
|
if (auto const& optional_e = a_to_b.e_matrix(); optional_e.has_value()) {
|
|
auto const& e = optional_e.value();
|
|
outln(" e = [ {}, {}, {}, {},", e[0], e[1], e[2], e[9]);
|
|
outln(" {}, {}, {}, {},", e[3], e[4], e[5], e[10]);
|
|
outln(" {}, {}, {}, {} ]", e[6], e[7], e[8], e[11]);
|
|
} else {
|
|
outln(" e = (not set)");
|
|
}
|
|
|
|
outln(" b curves: {} curves", a_to_b.b_curves().size());
|
|
TRY(out_curves(a_to_b.b_curves()));
|
|
} else if (tag_data->type() == Gfx::ICC::LutBToATagData::Type) {
|
|
auto& b_to_a = static_cast<Gfx::ICC::LutBToATagData&>(*tag_data);
|
|
outln(" {} input channels, {} output channels", b_to_a.number_of_input_channels(), b_to_a.number_of_output_channels());
|
|
|
|
outln(" b curves: {} curves", b_to_a.b_curves().size());
|
|
TRY(out_curves(b_to_a.b_curves()));
|
|
|
|
if (auto const& optional_e = b_to_a.e_matrix(); optional_e.has_value()) {
|
|
auto const& e = optional_e.value();
|
|
outln(" e = [ {}, {}, {}, {},", e[0], e[1], e[2], e[9]);
|
|
outln(" {}, {}, {}, {},", e[3], e[4], e[5], e[10]);
|
|
outln(" {}, {}, {}, {} ]", e[6], e[7], e[8], e[11]);
|
|
} else {
|
|
outln(" e = (not set)");
|
|
}
|
|
|
|
if (auto const& optional_m_curves = b_to_a.m_curves(); optional_m_curves.has_value()) {
|
|
outln(" m curves: {} curves", optional_m_curves->size());
|
|
TRY(out_curves(optional_m_curves.value()));
|
|
} else {
|
|
outln(" m curves: (not set)");
|
|
}
|
|
|
|
if (auto const& optional_clut = b_to_a.clut(); optional_clut.has_value()) {
|
|
auto const& clut = optional_clut.value();
|
|
outln(" color lookup table: {} grid points, {}",
|
|
TRY(String::join(" x "sv, clut.number_of_grid_points_in_dimension)),
|
|
TRY(clut.values.visit(
|
|
[](Vector<u8> const& v) { return String::formatted("{} u8 entries", v.size()); },
|
|
[](Vector<u16> const& v) { return String::formatted("{} u16 entries", v.size()); })));
|
|
} else {
|
|
outln(" color lookup table: (not set)");
|
|
}
|
|
|
|
if (auto const& optional_a_curves = b_to_a.a_curves(); optional_a_curves.has_value()) {
|
|
outln(" a curves: {} curves", optional_a_curves->size());
|
|
TRY(out_curves(optional_a_curves.value()));
|
|
} else {
|
|
outln(" a curves: (not set)");
|
|
}
|
|
} else if (tag_data->type() == Gfx::ICC::MeasurementTagData::Type) {
|
|
auto& measurement = static_cast<Gfx::ICC::MeasurementTagData&>(*tag_data);
|
|
outln(" standard observer: {}", Gfx::ICC::MeasurementTagData::standard_observer_name(measurement.standard_observer()));
|
|
outln(" tristimulus value for measurement backing: {}", measurement.tristimulus_value_for_measurement_backing());
|
|
outln(" measurement geometry: {}", Gfx::ICC::MeasurementTagData::measurement_geometry_name(measurement.measurement_geometry()));
|
|
outln(" measurement flare: {} %", measurement.measurement_flare() * 100);
|
|
outln(" standard illuminant: {}", Gfx::ICC::MeasurementTagData::standard_illuminant_name(measurement.standard_illuminant()));
|
|
} else if (tag_data->type() == Gfx::ICC::MultiLocalizedUnicodeTagData::Type) {
|
|
auto& multi_localized_unicode = static_cast<Gfx::ICC::MultiLocalizedUnicodeTagData&>(*tag_data);
|
|
for (auto& record : multi_localized_unicode.records()) {
|
|
outln(" {:c}{:c}/{:c}{:c}: \"{}\"",
|
|
record.iso_639_1_language_code >> 8, record.iso_639_1_language_code & 0xff,
|
|
record.iso_3166_1_country_code >> 8, record.iso_3166_1_country_code & 0xff,
|
|
record.text);
|
|
}
|
|
} else if (tag_data->type() == Gfx::ICC::NamedColor2TagData::Type) {
|
|
auto& named_colors = static_cast<Gfx::ICC::NamedColor2TagData&>(*tag_data);
|
|
outln(" vendor specific flag: 0x{:08x}", named_colors.vendor_specific_flag());
|
|
outln(" common name prefix: \"{}\"", named_colors.prefix());
|
|
outln(" common name suffix: \"{}\"", named_colors.suffix());
|
|
outln(" {} colors:", named_colors.size());
|
|
for (size_t i = 0; i < min(named_colors.size(), 5u); ++i) {
|
|
const auto& pcs = named_colors.pcs_coordinates(i);
|
|
|
|
// FIXME: Display decoded values? (See ICC v4 6.3.4.2 and 10.8.)
|
|
out(" \"{}\", PCS coordinates: 0x{:04x} 0x{:04x} 0x{:04x}", TRY(named_colors.color_name(i)), pcs.xyz.x, pcs.xyz.y, pcs.xyz.z);
|
|
if (auto number_of_device_coordinates = named_colors.number_of_device_coordinates(); number_of_device_coordinates > 0) {
|
|
out(", device coordinates:");
|
|
for (size_t j = 0; j < number_of_device_coordinates; ++j)
|
|
out(" 0x{:04x}", named_colors.device_coordinates(i)[j]);
|
|
}
|
|
outln();
|
|
}
|
|
if (named_colors.size() > 5u)
|
|
outln(" ...");
|
|
} else if (tag_data->type() == Gfx::ICC::ParametricCurveTagData::Type) {
|
|
TRY(out_curve_tag(*tag_data, /*indent=*/4));
|
|
} else if (tag_data->type() == Gfx::ICC::S15Fixed16ArrayTagData::Type) {
|
|
// This tag can contain arbitrarily many fixed-point numbers, but in practice it's
|
|
// exclusively used for the 'chad' tag, where it always contains 9 values that
|
|
// represent a 3x3 matrix. So print the values in groups of 3.
|
|
auto& fixed_array = static_cast<Gfx::ICC::S15Fixed16ArrayTagData&>(*tag_data);
|
|
out(" [");
|
|
int i = 0;
|
|
for (auto value : fixed_array.values()) {
|
|
if (i > 0) {
|
|
out(",");
|
|
if (i % 3 == 0) {
|
|
outln();
|
|
out(" ");
|
|
}
|
|
}
|
|
out(" {}", value);
|
|
i++;
|
|
}
|
|
outln(" ]");
|
|
} else if (tag_data->type() == Gfx::ICC::SignatureTagData::Type) {
|
|
auto& signature = static_cast<Gfx::ICC::SignatureTagData&>(*tag_data);
|
|
|
|
if (auto name = signature.name_for_tag(tag_signature); name.has_value()) {
|
|
outln(" signature: {}", name.value());
|
|
} else {
|
|
outln(" signature: Unknown ('{:c}{:c}{:c}{:c}' / 0x{:08x})",
|
|
signature.signature() >> 24, (signature.signature() >> 16) & 0xff, (signature.signature() >> 8) & 0xff, signature.signature() & 0xff,
|
|
signature.signature());
|
|
}
|
|
} else if (tag_data->type() == Gfx::ICC::TextDescriptionTagData::Type) {
|
|
auto& text_description = static_cast<Gfx::ICC::TextDescriptionTagData&>(*tag_data);
|
|
outln(" ascii: \"{}\"", text_description.ascii_description());
|
|
out_optional(" unicode", TRY(text_description.unicode_description().map([](auto description) { return String::formatted("\"{}\"", description); })));
|
|
outln(" unicode language code: 0x{}", text_description.unicode_language_code());
|
|
out_optional(" macintosh", TRY(text_description.macintosh_description().map([](auto description) { return String::formatted("\"{}\"", description); })));
|
|
} else if (tag_data->type() == Gfx::ICC::TextTagData::Type) {
|
|
outln(" text: \"{}\"", static_cast<Gfx::ICC::TextTagData&>(*tag_data).text());
|
|
} else if (tag_data->type() == Gfx::ICC::ViewingConditionsTagData::Type) {
|
|
auto& viewing_conditions = static_cast<Gfx::ICC::ViewingConditionsTagData&>(*tag_data);
|
|
outln(" unnormalized CIEXYZ values for illuminant (in which Y is in cd/m²): {}", viewing_conditions.unnormalized_ciexyz_values_for_illuminant());
|
|
outln(" unnormalized CIEXYZ values for surround (in which Y is in cd/m²): {}", viewing_conditions.unnormalized_ciexyz_values_for_surround());
|
|
outln(" illuminant type: {}", Gfx::ICC::MeasurementTagData::standard_illuminant_name(viewing_conditions.illuminant_type()));
|
|
} else if (tag_data->type() == Gfx::ICC::XYZTagData::Type) {
|
|
for (auto& xyz : static_cast<Gfx::ICC::XYZTagData&>(*tag_data).xyzs())
|
|
outln(" {}", xyz);
|
|
}
|
|
return {};
|
|
}));
|
|
|
|
return 0;
|
|
}
|