1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 14:37:45 +00:00

LibGfx: Start adding a class for handling ICC color profiles

For now, this checks the magic number and reads file version and
device class.
This commit is contained in:
Nico Weber 2022-12-26 08:21:26 -05:00 committed by Andrew Kaster
parent 19d3821354
commit d8867f8077
3 changed files with 199 additions and 0 deletions

View file

@ -0,0 +1,70 @@
/*
* Copyright (c) 2022, Nico Weber <thakis@chromium.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Error.h>
#include <AK/Format.h>
#include <AK/NonnullRefPtr.h>
#include <AK/RefCounted.h>
#include <AK/Span.h>
namespace Gfx::ICC {
// ICC v4, 7.2.4 Profile version field
class Version {
public:
Version() = default;
Version(u8 major, u8 minor_and_bugfix)
: m_major_version(major)
, m_minor_and_bugfix_version(minor_and_bugfix)
{
}
u8 major_version() const { return m_major_version; }
u8 minor_version() const { return m_minor_and_bugfix_version >> 4; }
u8 bugfix_version() const { return m_minor_and_bugfix_version & 0xf; }
private:
u8 m_major_version = 0;
u8 m_minor_and_bugfix_version = 0;
};
// ICC v4, 7.2.5 Profile/device class field
enum class DeviceClass : u32 {
InputDevce = 0x73636E72, // 'scnr'
DisplayDevice = 0x6D6E7472, // 'mntr'
OutputDevice = 0x70727472, // 'prtr'
DeviceLink = 0x6C696E6B, // 'link'
ColorSpace = 0x73706163, // 'spac'
Abstract = 0x61627374, // 'abst'
NamedColor = 0x6E6D636C, // 'nmcl'
};
char const* device_class_name(DeviceClass);
class Profile : public RefCounted<Profile> {
public:
static ErrorOr<NonnullRefPtr<Profile>> try_load_from_externally_owned_memory(ReadonlyBytes bytes);
Version version() const { return m_version; }
DeviceClass device_class() const { return m_device_class; }
private:
Version m_version;
DeviceClass m_device_class;
};
}
namespace AK {
template<>
struct Formatter<Gfx::ICC::Version> : Formatter<FormatString> {
ErrorOr<void> format(FormatBuilder& builder, Gfx::ICC::Version const& version)
{
return Formatter<FormatString>::format(builder, "{}.{}.{}"sv, version.major_version(), version.minor_version(), version.bugfix_version());
}
};
}