LibGfx: Read rendering intent from ICCProfile header

2 files changed, 44 insertions, 0 deletions

diff --git a/Userland/Libraries/LibGfx/ICCProfile.cpp b/Userland/Libraries/LibGfx/ICCProfile.cpp
index 6597f27c61..00ba415c99 100644
--- a/Userland/Libraries/LibGfx/ICCProfile.cpp
+++ b/Userland/Libraries/LibGfx/ICCProfile.cpp
@@ -160,6 +160,22 @@ ErrorOr<ColorSpace> parse_data_color_space(ICCHeader const& header)
     return Error::from_string_literal("ICC::Profile: Invalid data color space");
 }
 
+ErrorOr<RenderingIntent> parse_rendering_intent(ICCHeader const& header)
+{
+    // ICC v4, 7.2.15 Rendering intent field
+    switch (header.rendering_intent) {
+    case 0:
+        return RenderingIntent::Perceptual;
+    case 1:
+        return RenderingIntent::MediaRelativeColorimetric;
+    case 2:
+        return RenderingIntent::Saturation;
+    case 3:
+        return RenderingIntent::ICCAbsoluteColorimetric;
+    }
+    return Error::from_string_literal("ICC::Profile: Invalid rendering intent");
+}
+
 ErrorOr<time_t> parse_creation_date_time(ICCHeader const& header)
 {
     // iCC v4, 7.2.8 Date and time field
@@ -255,6 +271,22 @@ char const* color_space_name(ColorSpace color_space)
     }
 }
 
+char const* rendering_intent_name(RenderingIntent rendering_intent)
+{
+    switch (rendering_intent) {
+    case RenderingIntent::Perceptual:
+        return "Perceptual";
+    case RenderingIntent::MediaRelativeColorimetric:
+        return "Media-relative colorimetric";
+    case RenderingIntent::Saturation:
+        return "Saturation";
+    case RenderingIntent::ICCAbsoluteColorimetric:
+        return "ICC-absolute colorimetric";
+    default:
+        return NULL;
+    }
+}
+
 ErrorOr<NonnullRefPtr<Profile>> Profile::try_load_from_externally_owned_memory(ReadonlyBytes bytes)
 {
     auto profile = adopt_ref(*new Profile());
@@ -269,6 +301,7 @@ ErrorOr<NonnullRefPtr<Profile>> Profile::try_load_from_externally_owned_memory(R
     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));
+    profile->m_rendering_intent = TRY(parse_rendering_intent(header));
 
     return profile;
 }
diff --git a/Userland/Libraries/LibGfx/ICCProfile.h b/Userland/Libraries/LibGfx/ICCProfile.h
index 8171dbfdbe..ab8910b4a1 100644
--- a/Userland/Libraries/LibGfx/ICCProfile.h
+++ b/Userland/Libraries/LibGfx/ICCProfile.h
@@ -75,6 +75,15 @@ enum class ColorSpace : u32 {
 };
 char const* color_space_name(ColorSpace);
 
+// ICC v4, 7.2.15 Rendering intent field
+enum class RenderingIntent {
+    Perceptual,
+    MediaRelativeColorimetric,
+    Saturation,
+    ICCAbsoluteColorimetric,
+};
+char const* rendering_intent_name(RenderingIntent);
+
 class Profile : public RefCounted<Profile> {
 public:
     static ErrorOr<NonnullRefPtr<Profile>> try_load_from_externally_owned_memory(ReadonlyBytes bytes);
@@ -83,12 +92,14 @@ public:
     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; }
+    RenderingIntent rendering_intent() const { return m_rendering_intent; }
 
 private:
     Version m_version;
     DeviceClass m_device_class;
     ColorSpace m_data_color_space;
     time_t m_creation_timestamp;
+    RenderingIntent m_rendering_intent;
 };
 
 }