LibGfx: Read data color space from ICCProfile header

2 files changed, 126 insertions, 1 deletions

diff --git a/Userland/Libraries/LibGfx/ICCProfile.cpp b/Userland/Libraries/LibGfx/ICCProfile.cpp
index f523f907a3..6597f27c61 100644
--- a/Userland/Libraries/LibGfx/ICCProfile.cpp
+++ b/Userland/Libraries/LibGfx/ICCProfile.cpp
@@ -77,7 +77,7 @@ struct ICCHeader {
     BigEndian<u16> profile_version_zero;
 
     BigEndian<DeviceClass> profile_device_class;
-    BigEndian<u32> data_color_space;
+    BigEndian<ColorSpace> data_color_space;
     BigEndian<u32> pcs; // "Profile Connection Space"
 
     DateTimeNumber profile_creation_time;
@@ -126,6 +126,40 @@ ErrorOr<DeviceClass> parse_device_class(ICCHeader const& header)
     return Error::from_string_literal("ICC::Profile: Invalid device class");
 }
 
+ErrorOr<ColorSpace> parse_data_color_space(ICCHeader const& header)
+{
+    // ICC v4, 7.2.6 Data colour space field
+    switch (header.data_color_space) {
+    case ColorSpace::nCIEXYZ:
+    case ColorSpace::CIELAB:
+    case ColorSpace::CIELUV:
+    case ColorSpace::YCbCr:
+    case ColorSpace::CIEYxy:
+    case ColorSpace::RGB:
+    case ColorSpace::Gray:
+    case ColorSpace::HSV:
+    case ColorSpace::HLS:
+    case ColorSpace::CMYK:
+    case ColorSpace::CMY:
+    case ColorSpace::TwoColor:
+    case ColorSpace::ThreeColor:
+    case ColorSpace::FourColor:
+    case ColorSpace::FiveColor:
+    case ColorSpace::SixColor:
+    case ColorSpace::SevenColor:
+    case ColorSpace::EightColor:
+    case ColorSpace::NineColor:
+    case ColorSpace::TenColor:
+    case ColorSpace::ElevenColor:
+    case ColorSpace::TwelveColor:
+    case ColorSpace::ThirteenColor:
+    case ColorSpace::FourteenColor:
+    case ColorSpace::FifteenColor:
+        return header.data_color_space;
+    }
+    return Error::from_string_literal("ICC::Profile: Invalid data color space");
+}
+
 ErrorOr<time_t> parse_creation_date_time(ICCHeader const& header)
 {
     // iCC v4, 7.2.8 Date and time field
@@ -163,6 +197,64 @@ char const* device_class_name(DeviceClass device_class)
     }
 }
 
+char const* color_space_name(ColorSpace color_space)
+{
+    switch (color_space) {
+    case ColorSpace::nCIEXYZ:
+        return "nCIEXYZ";
+    case ColorSpace::CIELAB:
+        return "CIELAB";
+    case ColorSpace::CIELUV:
+        return "CIELUV";
+    case ColorSpace::YCbCr:
+        return "YCbCr";
+    case ColorSpace::CIEYxy:
+        return "CIEYxy";
+    case ColorSpace::RGB:
+        return "RGB";
+    case ColorSpace::Gray:
+        return "Gray";
+    case ColorSpace::HSV:
+        return "HSV";
+    case ColorSpace::HLS:
+        return "HLS";
+    case ColorSpace::CMYK:
+        return "CMYK";
+    case ColorSpace::CMY:
+        return "CMY";
+    case ColorSpace::TwoColor:
+        return "2 color";
+    case ColorSpace::ThreeColor:
+        return "3 color (other than XYZ, Lab, Luv, YCbCr, CIEYxy, RGB, HSV, HLS, CMY)";
+    case ColorSpace::FourColor:
+        return "4 color (other than CMYK)";
+    case ColorSpace::FiveColor:
+        return "5 color";
+    case ColorSpace::SixColor:
+        return "6 color";
+    case ColorSpace::SevenColor:
+        return "7 color";
+    case ColorSpace::EightColor:
+        return "8 color";
+    case ColorSpace::NineColor:
+        return "9 color";
+    case ColorSpace::TenColor:
+        return "10 color";
+    case ColorSpace::ElevenColor:
+        return "11 color";
+    case ColorSpace::TwelveColor:
+        return "12 color";
+    case ColorSpace::ThirteenColor:
+        return "13 color";
+    case ColorSpace::FourteenColor:
+        return "14 color";
+    case ColorSpace::FifteenColor:
+        return "15 color";
+    default:
+        return NULL;
+    }
+}
+
 ErrorOr<NonnullRefPtr<Profile>> Profile::try_load_from_externally_owned_memory(ReadonlyBytes bytes)
 {
     auto profile = adopt_ref(*new Profile());
@@ -175,6 +267,7 @@ ErrorOr<NonnullRefPtr<Profile>> Profile::try_load_from_externally_owned_memory(R
     TRY(parse_file_signature(header));
     profile->m_version = TRY(parse_version(header));
     profile->m_device_class = TRY(parse_device_class(header));
+    profile->m_data_color_space = TRY(parse_data_color_space(header));
     profile->m_creation_timestamp = TRY(parse_creation_date_time(header));
 
     return profile;
diff --git a/Userland/Libraries/LibGfx/ICCProfile.h b/Userland/Libraries/LibGfx/ICCProfile.h
index 2a918c205f..8171dbfdbe 100644
--- a/Userland/Libraries/LibGfx/ICCProfile.h
+++ b/Userland/Libraries/LibGfx/ICCProfile.h
@@ -45,17 +45,49 @@ enum class DeviceClass : u32 {
 };
 char const* device_class_name(DeviceClass);
 
+// ICC v4, 7.2.6 Data colour space field, Table 19 — Data colour space signatures
+enum class ColorSpace : u32 {
+    nCIEXYZ = 0x58595A20,       // 'XYZ '
+    CIELAB = 0x4C616220,        // 'Lab '
+    CIELUV = 0x4C757620,        // 'Luv '
+    YCbCr = 0x59436272,         // 'YCbr'
+    CIEYxy = 0x59787920,        // 'Yxy '
+    RGB = 0x52474220,           // 'RGB '
+    Gray = 0x47524159,          // 'GRAY'
+    HSV = 0x48535620,           // 'HSV '
+    HLS = 0x484C5320,           // 'HLS '
+    CMYK = 0x434D594B,          // 'CMYK'
+    CMY = 0x434D5920,           // 'CMY '
+    TwoColor = 0x32434C52,      // '2CLR'
+    ThreeColor = 0x33434C52,    // '3CLR'
+    FourColor = 0x34434C52,     // '4CLR'
+    FiveColor = 0x35434C52,     // '5CLR'
+    SixColor = 0x36434C52,      // '6CLR'
+    SevenColor = 0x37434C52,    // '7CLR'
+    EightColor = 0x38434C52,    // '8CLR'
+    NineColor = 0x39434C52,     // '9CLR'
+    TenColor = 0x41434C52,      // 'ACLR'
+    ElevenColor = 0x42434C52,   // 'BCLR'
+    TwelveColor = 0x43434C52,   // 'CCLR'
+    ThirteenColor = 0x44434C52, // 'DCLR'
+    FourteenColor = 0x45434C52, // 'ECLR'
+    FifteenColor = 0x46434C52,  // 'FCLR'
+};
+char const* color_space_name(ColorSpace);
+
 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; }
+    ColorSpace data_color_space() const { return m_data_color_space; }
     time_t creation_timestamp() const { return m_creation_timestamp; }
 
 private:
     Version m_version;
     DeviceClass m_device_class;
+    ColorSpace m_data_color_space;
     time_t m_creation_timestamp;
 };