* update mesa-amber to 21.3.9-4.1

mesa-amber/0001-big-endian-flipping.patch

@@ -0,0 +1,37 @@
+From f1e0d76264491a8d8f99a0041b1a36cf9752fd28 Mon Sep 17 00:00:00 2001
+From: "A. Wilcox" <AWilcox@Wilcox-Tech.com>
+Date: Thu, 27 Feb 2020 04:24:52 -0600
+Subject: [PATCH] mesa: Support flipping three-channel formats
+
+Test system: POWER9 ppc64 (BE) system with a Radeon R5 230.
+
+Before this commit, starting Xorg caused this message:
+Assertion failed: !"Invalid array format" (../src/mesa/main/formats.c: _mesa_array_format_flip_channels: 421)
+
+After this commit, Xorg starts successfully.
+---
+ src/mesa/main/formats.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/src/mesa/main/formats.c b/src/mesa/main/formats.c
+index 370859d37ca..2e7d5d7f05e 100644
+--- a/src/mesa/main/formats.c
++++ b/src/mesa/main/formats.c
+@@ -419,6 +419,14 @@ _mesa_array_format_flip_channels(mesa_array_format format)
+       return format;
+    }
+ 
++   if (num_channels == 3) {
++      static const uint8_t flip[6] = { 2, 1, 0, 3, 4, 5 };
++      _mesa_array_format_set_swizzle(&format,
++                                     flip[swizzle[0]], flip[swizzle[1]],
++                                     flip[swizzle[2]], flip[swizzle[3]]);
++      return format;
++   }
++
+    if (num_channels == 4) {
+       static const uint8_t flip[6] = { 3, 2, 1, 0, 4, 5 };
+       _mesa_array_format_set_swizzle(&format,
+-- 
+2.25.1
+

mesa-amber/PKGBUILD

@@ -6,7 +6,7 @@
 pkgname=mesa-amber
 pkgdesc="classic OpenGL (non-Gallium3D) drivers"
 pkgver=21.3.9
-pkgrel=4
+pkgrel=4.1
 arch=(x86_64 powerpc64le powerpc64 powerpc riscv64)
 makedepends=('python-mako' 'libxml2' 'libx11' 'xorgproto' 'libdrm' 'libxshmfence' 'libxxf86vm'
              'libxdamage' 'wayland' 'wayland-protocols' 'zstd' 'elfutils'
@@ -14,15 +14,18 @@ makedepends=('python-mako' 'libxml2' 'libx11' 'xorgproto' 'libdrm' 'libxshmfence
 url="https://www.mesa3d.org/"
 license=('custom')
 source=(https://mesa.freedesktop.org/archive/mesa-${pkgver}.tar.xz{,.sig}
-        LICENSE)
+        LICENSE
+        0001-big-endian-flipping.patch)
 sha512sums=('4cec6f4f50f444fcd327f7c40f8899c2f265e348e121455262b540b1f890a1468bbea59965af0876c548fa97aa0a05a1b23fa6ca7d308bd60328cfdeab757684'
             'SKIP'
-            'f9f0d0ccf166fe6cb684478b6f1e1ab1f2850431c06aa041738563eb1808a004e52cdec823c103c9e180f03ffc083e95974d291353f0220fe52ae6d4897fecc7')
+            'f9f0d0ccf166fe6cb684478b6f1e1ab1f2850431c06aa041738563eb1808a004e52cdec823c103c9e180f03ffc083e95974d291353f0220fe52ae6d4897fecc7'
+            '3417e5c6d7ec564178e1d72431042b0a6ba659321f13a3dda81eda5fa0f2c8bc7c6972cb8266aea84ab05976ffb161659e9988c50ecc418e8bc1e1ce8f93a65f')
 #validpgpkeys=('57551DE15B968F6341C248F68D8E31AFC32428A6') # Eric Engestrom <eric@engestrom.ch>
 validpgpkeys=('71C4B75620BC75708B4BDB254C95FAAB3EB073EC') # Dylan Baker <dylan@pnwbakers.com>
 
 prepare() {
   cd mesa-$pkgver
+  patch -Np1 -i ${srcdir}/0001-big-endian-flipping.patch
 }
 
 build() {