media-video/megapixels: add package

megapixels is the camera app for smarphones. Created by
postmarketOS's dev Martijn Braam specifically for PinePhone

Package-Manager: Portage-3.0.20, Repoman-3.0.3
Signed-off-by: Marco Scardovi <marco@scardovi.com>

media-video/megapixels/Manifest

@@ -0,0 +1 @@
+DIST megapixels-1.0.1.tar.gz 80358 BLAKE2B 27ea71cb0d2dc044b3c870a87fd0920c3bd319c5561417a736790159887e7d16f158807163a5132c3a7bc1590a39762c1bfaa2c0dd8fa89cb42bb8a75d1a2123 SHA512 4d7e7f80405c6c1265855708f1ede0f7ddc3044a7afc3a8083e1c308ba4104a78fc98da1facb1ab3882182d7e30d32bef8bbb22a703e71b1e63a7660387896d4

media-video/megapixels/files/fix-preview-color.patch

@@ -0,0 +1,25 @@
+From 055ff6e2669715550552206b4614832dc66eeb25 Mon Sep 17 00:00:00 2001
+From: Benjamin Schaaf <ben.schaaf@gmail.com>
+Date: Tue, 4 May 2021 23:40:45 +1000
+Subject: [PATCH] Fix preview color
+
+---
+ data/debayer.frag | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/data/debayer.frag b/data/debayer.frag
+index 9a98c10..4244c2f 100644
+--- a/data/debayer.frag
++++ b/data/debayer.frag
+@@ -22,7 +22,7 @@ void main() {
+ 
+ 	// Assume BGGR for now. Currently this just takes 3 of the four samples
+ 	// for each pixel, there's room here to do some better debayering.
+-	vec3 color = vec3(samples.w, (samples.y + samples.w) / 2.0, samples.x);
++	vec3 color = vec3(samples.w, (samples.y + samples.z) / 2.0, samples.x);
+ 
+ 	// Fast SRGB estimate. See https://mimosa-pudica.net/fast-gamma/
+ 	vec3 srgb_color = (vec3(1.138) * inversesqrt(color) - vec3(0.138)) * color;
+-- 
+2.30.2
+

media-video/megapixels/megapixels-1.0.1.ebuild

@@ -0,0 +1,34 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit gnome2-utils meson xdg
+
+DESCRIPTION="A GTK3 camera application that knows how to deal with the media request api"
+HOMEPAGE="https://git.sr.ht/~martijnbraam/megapixels"
+SRC_URI="https://git.sr.ht/~martijnbraam/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64"
+
+DEPEND="
+	gui-libs/gtk
+	media-gfx/imagemagick
+	media-gfx/zbar
+	media-libs/libraw
+"
+RDEPEND="${DEPEND}"
+
+PATCHES=( "${FILESDIR}"/fix-preview-color.patch )
+
+pkg_postinst() {
+	xdg_pkg_postinst
+	gnome2_schemas_update
+}
+
+pkg_postrm() {
+	xdg_pkg_postrm
+	gnome2_schemas_update
+}

media-video/megapixels/metadata.xml

@@ -0,0 +1,11 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>marco@scardovi.com</email>
+		<name>Marco Scardovi</name>
+	</maintainer>
+	<upstream>
+		<remote-id type="github">atom/atom</remote-id>
+	</upstream>
+</pkgmetadata>