RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 05:57:45 +00:00
Code Issues Activity Actions

icc: Dump embedded parametric curves in lutAToBType and lutAToBType

Browse source
This commit is contained in:
Nico Weber 2023-02-12 11:34:24 -05:00 • committed by Linus Groh
parent ed8bd3a792
commit 7929f8fef9
1 changed files with 33 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

59
Userland/Utilities/icc.cpp
View file

@ -30,11 +30,43 @@ static void out_optional(char const* label, Optional<T> const& optional)
outln("(not set)");
}
static void out_parametric_curve(Gfx::ICC::ParametricCurveTagData const& parametric_curve, int indent_amount)
{
auto indent = MUST(String::repeated(' ', indent_amount));
switch (parametric_curve.function_type()) {
case Gfx::ICC::ParametricCurveTagData::FunctionType::Type0:
outln("{}Y = X**{}", indent, parametric_curve.g());
break;
case Gfx::ICC::ParametricCurveTagData::FunctionType::Type1:
outln("{}Y = ({}*X + {})**{} if X >= -{}/{}", indent,
parametric_curve.a(), parametric_curve.b(), parametric_curve.g(), parametric_curve.b(), parametric_curve.a());
outln("{}Y = 0 else", indent);
break;
case Gfx::ICC::ParametricCurveTagData::FunctionType::Type2:
outln("{}Y = ({}*X + {})**{} + {} if X >= -{}/{}", indent,
parametric_curve.a(), parametric_curve.b(), parametric_curve.g(), parametric_curve.c(), parametric_curve.b(), parametric_curve.a());
outln("{}Y = {} else", indent, parametric_curve.c());
break;
case Gfx::ICC::ParametricCurveTagData::FunctionType::Type3:
outln("{}Y = ({}*X + {})**{} if X >= {}", indent,
parametric_curve.a(), parametric_curve.b(), parametric_curve.g(), parametric_curve.d());
outln("{}Y = {}*X else", indent, parametric_curve.c());
break;
case Gfx::ICC::ParametricCurveTagData::FunctionType::Type4:
outln("{}Y = ({}*X + {})**{} + {} if X >= {}", indent,
parametric_curve.a(), parametric_curve.b(), parametric_curve.g(), parametric_curve.e(), parametric_curve.d());
outln("{}Y = {}*X + {} else", indent, parametric_curve.c(), parametric_curve.f());
break;
}
}
static void out_curves(Vector<Gfx::ICC::LutCurveType> const& curves)
{
for (auto const& curve : curves) {
VERIFY(curve->type() == Gfx::ICC::CurveTagData::Type || curve->type() == Gfx::ICC::ParametricCurveTagData::Type);
outln(" type {}, relative offset {}, size {}", curve->type(), curve->offset(), curve->size());
if (curve->type() == Gfx::ICC::ParametricCurveTagData::Type)
out_parametric_curve(static_cast<Gfx::ICC::ParametricCurveTagData&>(*curve), /*indent=*/12);
}
}
@ -295,32 +327,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
if (named_colors.size() > 5u)
outln(" ...");
} else if (tag_data->type() == Gfx::ICC::ParametricCurveTagData::Type) {
auto& parametric_curve = static_cast<Gfx::ICC::ParametricCurveTagData&>(*tag_data);
switch (parametric_curve.function_type()) {
case Gfx::ICC::ParametricCurveTagData::FunctionType::Type0:
outln(" Y = X**{}", parametric_curve.g());
break;
case Gfx::ICC::ParametricCurveTagData::FunctionType::Type1:
outln(" Y = ({}*X + {})**{} if X >= -{}/{}",
parametric_curve.a(), parametric_curve.b(), parametric_curve.g(), parametric_curve.b(), parametric_curve.a());
outln(" Y = 0 else");
break;
case Gfx::ICC::ParametricCurveTagData::FunctionType::Type2:
outln(" Y = ({}*X + {})**{} + {} if X >= -{}/{}",
parametric_curve.a(), parametric_curve.b(), parametric_curve.g(), parametric_curve.c(), parametric_curve.b(), parametric_curve.a());
outln(" Y = {} else", parametric_curve.c());
break;
case Gfx::ICC::ParametricCurveTagData::FunctionType::Type3:
outln(" Y = ({}*X + {})**{} if X >= {}",
parametric_curve.a(), parametric_curve.b(), parametric_curve.g(), parametric_curve.d());
outln(" Y = {}*X else", parametric_curve.c());
break;
case Gfx::ICC::ParametricCurveTagData::FunctionType::Type4:
outln(" Y = ({}*X + {})**{} + {} if X >= {}",
parametric_curve.a(), parametric_curve.b(), parametric_curve.g(), parametric_curve.e(), parametric_curve.d());
outln(" Y = {}*X + {} else", parametric_curve.c(), parametric_curve.f());
break;
}
out_parametric_curve(static_cast<Gfx::ICC::ParametricCurveTagData&>(*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