From 51d5397e92c36ff3c8084383e2ae91574fcc2c07 Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis@chromium.org>
Date: Sun, 7 Jan 2024 21:48:03 -0500
Subject: [PATCH] LibGfx: Give ImageDecoder an API for getting raw CMYK data

frame() still returns a regular RGB Bitmap, but it's possible to also
get at raw CMYK data instead if desired, for image formats that can
store that.
---
 Userland/Libraries/LibGfx/ImageFormats/ImageDecoder.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Userland/Libraries/LibGfx/ImageFormats/ImageDecoder.h b/Userland/Libraries/LibGfx/ImageFormats/ImageDecoder.h
index aadc4ef74e..92626d37c4 100644
--- a/Userland/Libraries/LibGfx/ImageFormats/ImageDecoder.h
+++ b/Userland/Libraries/LibGfx/ImageFormats/ImageDecoder.h
@@ -11,6 +11,7 @@
 #include <AK/RefCounted.h>
 #include <AK/RefPtr.h>
 #include <LibGfx/Bitmap.h>
+#include <LibGfx/CMYKBitmap.h>
 #include <LibGfx/Size.h>
 #include <LibGfx/VectorGraphic.h>
 
@@ -30,6 +31,7 @@ struct VectorImageFrameDescriptor {
 
 enum class NaturalFrameFormat {
     RGB,
+    CMYK,
     Vector,
 };
 
@@ -59,6 +61,7 @@ public:
     virtual ErrorOr<Optional<ReadonlyBytes>> icc_data() { return OptionalNone {}; }
 
     virtual NaturalFrameFormat natural_frame_format() const { return NaturalFrameFormat::RGB; }
+    virtual ErrorOr<NonnullRefPtr<CMYKBitmap>> cmyk_frame() { VERIFY_NOT_REACHED(); }
     virtual ErrorOr<VectorImageFrameDescriptor> vector_frame(size_t) { VERIFY_NOT_REACHED(); }
 
 protected:
@@ -82,6 +85,9 @@ public:
 
     NaturalFrameFormat natural_frame_format() { return m_plugin->natural_frame_format(); }
 
+    // Call only if natural_frame_format() == NaturalFrameFormat::CMYK.
+    ErrorOr<NonnullRefPtr<CMYKBitmap>> cmyk_frame(size_t) { return m_plugin->cmyk_frame(); }
+
     // Call only if natural_frame_format() == NaturalFrameFormat::Vector.
     ErrorOr<VectorImageFrameDescriptor> vector_frame(size_t index) { return m_plugin->vector_frame(index); }