From b3c423e4ca952c0b6fcdff0116e1a3745f32fc05 Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis@chromium.org>
Date: Mon, 25 Mar 2024 21:31:31 -0400
Subject: [PATCH] LibGfx/ISOBMFF: Implement JPEG2000DefaultDisplayResolutionBox

Found e.g. in http://opf-labs.org/format-corpus/jp2k-formats/balloon.jpf
---
 .../LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.cpp    | 12 ++++++++++++
 .../LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.h      |  5 +++++
 2 files changed, 17 insertions(+)

diff --git a/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.cpp b/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.cpp
index a6ab46a1cf8..2fa8760b7b5 100644
--- a/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.cpp
+++ b/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.cpp
@@ -130,6 +130,8 @@ ErrorOr<void> JPEG2000ResolutionBox::read_from_stream(BoxStream& stream)
         switch (type) {
         case BoxType::JPEG2000CaptureResolutionBox:
             return TRY(JPEG2000CaptureResolutionBox::create_from_stream(stream));
+        case BoxType::JPEG2000DefaultDisplayResolutionBox:
+            return TRY(JPEG2000DefaultDisplayResolutionBox::create_from_stream(stream));
         default:
             return OptionalNone {};
         }
@@ -172,6 +174,16 @@ void JPEG2000CaptureResolutionBox::dump(String const& prepend) const
     JPEG2000ResolutionSubboxBase::dump(prepend);
 }
 
+ErrorOr<void> JPEG2000DefaultDisplayResolutionBox::read_from_stream(BoxStream& stream)
+{
+    return JPEG2000ResolutionSubboxBase::read_from_stream(stream);
+}
+
+void JPEG2000DefaultDisplayResolutionBox::dump(String const& prepend) const
+{
+    JPEG2000ResolutionSubboxBase::dump(prepend);
+}
+
 ErrorOr<void> JPEG2000ContiguousCodestreamBox::read_from_stream(BoxStream& stream)
 {
     // FIXME: It's wasteful to make a copy of all the image data here. Having just a ReadonlyBytes
diff --git a/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.h b/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.h
index cb1a2c8e6bc..c66f523ea79 100644
--- a/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.h
+++ b/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.h
@@ -72,6 +72,11 @@ struct JPEG2000CaptureResolutionBox final : public JPEG2000ResolutionSubboxBase
     BOX_SUBTYPE(JPEG2000CaptureResolutionBox);
 };
 
+// I.5.3.7.2 Default Display Resolution box
+struct JPEG2000DefaultDisplayResolutionBox final : public JPEG2000ResolutionSubboxBase {
+    BOX_SUBTYPE(JPEG2000DefaultDisplayResolutionBox);
+};
+
 // I.5.4 Contiguous Codestream box
 struct JPEG2000ContiguousCodestreamBox final : public Box {
     BOX_SUBTYPE(JPEG2000ContiguousCodestreamBox);