kde-frameworks/kimageformats: Fix AVIF performance

See also:
https://mail.kde.org/pipermail/distributions/2022-October/001309.html

Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org>

kde-frameworks/kimageformats/files/kimageformats-5.99.0-avif-perf-1.patch

@@ -0,0 +1,34 @@
+From 350ce1b990460cb2178f369f22fe80803f5645f3 Mon Sep 17 00:00:00 2001
+From: Fushan Wen <qydwhotmail@gmail.com>
+Date: Sat, 15 Oct 2022 11:40:41 +0800
+Subject: [PATCH] avif: return `false` in `canRead()` when `imageIndex >=
+ imageCount`
+
+Otherwise when `cache: false` is set in AnimatedImage, QMovie will try
+to read the image forever.
+
+BUG: 460085
+FIXED-IN: 5.100
+---
+ src/imageformats/avif.cpp | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/src/imageformats/avif.cpp b/src/imageformats/avif.cpp
+index 2865a4e..c4f7a0f 100644
+--- a/src/imageformats/avif.cpp
++++ b/src/imageformats/avif.cpp
+@@ -42,6 +42,11 @@ bool QAVIFHandler::canRead() const
+ 
+     if (m_parseState != ParseAvifError) {
+         setFormat("avif");
++
++        if (m_parseState == ParseAvifSuccess && m_decoder->imageIndex >= m_decoder->imageCount - 1) {
++            return false;
++        }
++
+         return true;
+     }
+     return false;
+-- 
+GitLab
+

kde-frameworks/kimageformats/files/kimageformats-5.99.0-avif-perf-2.patch

@@ -0,0 +1,32 @@
+From 1190e53e9b69da6f9663ceb75c4813c5708b7cbd Mon Sep 17 00:00:00 2001
+From: Fushan Wen <qydwhotmail@gmail.com>
+Date: Sat, 15 Oct 2022 14:11:56 +0800
+Subject: [PATCH] avif: always indicate endless loop
+
+avif does not support loops but endless loop was the behavior before
+460085 was fixed, so a workaround is added.
+
+See also: https://github.com/AOMediaCodec/libavif/issues/347
+
+CCBUG: 460085
+---
+ src/imageformats/avif.cpp | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/src/imageformats/avif.cpp b/src/imageformats/avif.cpp
+index c4f7a0f..24aec84 100644
+--- a/src/imageformats/avif.cpp
++++ b/src/imageformats/avif.cpp
+@@ -1024,7 +1024,8 @@ int QAVIFHandler::loopCount() const
+         return 0;
+     }
+ 
+-    return 1;
++    // Endless loop to work around https://github.com/AOMediaCodec/libavif/issues/347
++    return -1;
+ }
+ 
+ QPointF QAVIFHandler::CompatibleChromacity(qreal chrX, qreal chrY)
+-- 
+GitLab
+

kde-frameworks/kimageformats/kimageformats-5.99.0-r1.ebuild

@@ -0,0 +1,44 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+ECM_QTHELP="false"
+PVCUT=$(ver_cut 1-2)
+QTMIN=5.15.5
+VIRTUALX_REQUIRED="test"
+inherit ecm frameworks.kde.org
+
+DESCRIPTION="Framework providing additional format plugins for Qt's image I/O system"
+
+LICENSE="LGPL-2+"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~riscv ~x86"
+IUSE="avif eps heif jpegxl openexr raw"
+
+DEPEND="
+	>=dev-qt/qtgui-${QTMIN}:5
+	=kde-frameworks/karchive-${PVCUT}*:5
+	avif? ( >=media-libs/libavif-0.8.2:= )
+	eps? ( >=dev-qt/qtprintsupport-${QTMIN}:5 )
+	heif? ( >=media-libs/libheif-1.10.0:= )
+	jpegxl? ( media-libs/libjxl )
+	openexr? ( >=media-libs/openexr-3:= )
+	raw? ( media-libs/libraw:= )
+"
+RDEPEND="${DEPEND}"
+
+DOCS=( src/imageformats/AUTHORS )
+
+PATCHES=( "${FILESDIR}"/${P}-avif-perf-{1,2}.patch )
+
+src_configure() {
+	local mycmakeargs=(
+		-DKIMAGEFORMATS_JXL=$(usex jpegxl)
+		$(cmake_use_find_package avif libavif)
+		$(cmake_use_find_package eps Qt5PrintSupport)
+		-DKIMAGEFORMATS_HEIF=$(usex heif)
+		$(cmake_use_find_package openexr OpenEXR)
+		$(cmake_use_find_package raw LibRaw)
+	)
+	ecm_src_configure
+}