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https://github.com/RGBCube/serenity
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icc: Dump embedded parametric curves in lutAToBType and lutAToBType
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1 changed files with 33 additions and 26 deletions
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@ -30,11 +30,43 @@ static void out_optional(char const* label, Optional<T> const& optional)
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outln("(not set)");
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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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auto indent = MUST(String::repeated(' ', indent_amount));
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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, 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,
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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);
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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,
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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, 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,
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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, 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,
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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, parametric_curve.c(), parametric_curve.f());
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break;
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}
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}
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static 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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if (curve->type() == Gfx::ICC::ParametricCurveTagData::Type)
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out_parametric_curve(static_cast<Gfx::ICC::ParametricCurveTagData&>(*curve), /*indent=*/12);
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}
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}
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@ -295,32 +327,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
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if (named_colors.size() > 5u)
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outln(" ...");
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} else if (tag_data->type() == Gfx::ICC::ParametricCurveTagData::Type) {
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auto& parametric_curve = static_cast<Gfx::ICC::ParametricCurveTagData&>(*tag_data);
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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**{}", 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 >= -{}/{}",
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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");
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break;
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case Gfx::ICC::ParametricCurveTagData::FunctionType::Type2:
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outln(" Y = ({}*X + {})**{} + {} if X >= -{}/{}",
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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", 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 >= {}",
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parametric_curve.a(), parametric_curve.b(), parametric_curve.g(), parametric_curve.d());
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outln(" Y = {}*X else", 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 >= {}",
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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", parametric_curve.c(), parametric_curve.f());
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break;
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}
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out_parametric_curve(static_cast<Gfx::ICC::ParametricCurveTagData&>(*tag_data), /*indent=*/4);
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} else if (tag_data->type() == Gfx::ICC::S15Fixed16ArrayTagData::Type) {
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// This tag can contain arbitrarily many fixed-point numbers, but in practice it's
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// exclusively used for the 'chad' tag, where it always contains 9 values that
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