Backport MR #26220 to fix GNOME apps crash

MR: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26220
Fedora bug:https://bugzilla.redhat.com/show_bug.cgi?id=2249725
Mesa bug: https://gitlab.freedesktop.org/mesa/mesa/-/issues/10146

0001-zink-allow-software-rendering-only-if-selected.patch

@@ -0,0 +1,80 @@
+From 2a71f06f2938678d89d5ed1372cda6a7b55d964d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= <jexposit@redhat.com>
+Date: Thu, 16 Nov 2023 12:18:29 +0100
+Subject: [PATCH] zink: allow software rendering only if selected
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+In environments where 3D acceleration is not available, like in a VM,
+the behavior before commit 8cd44b884387 ("egl: add automatic zink
+fallback loading between hw and sw drivers") was to fallback to swrast.
+
+This was the output of `eglinfo` in that situation:
+
+    $ eglinfo
+    [...]
+    Wayland platform:
+    EGL driver name: swrast
+    OpenGL core profile renderer: llvmpipe (LLVM 17.0.4, 256 bits)
+
+However, after commit 8cd44b884387 ("egl: add automatic zink fallback
+loading between hw and sw drivers") Zink support is tested before
+falling back to swrast.
+Since the system doesn't support 3D acceleration, Zink + software
+rendering is used instead of swrast causing issues like the ones
+described in #10146.
+
+In this case, `eglinfo` prints:
+
+    $ eglinfo
+    [...]
+    Wayland platform:
+    EGL driver name: zink
+    OpenGL core profile renderer: zink Vulkan 1.3(llvmpipe (LLVM 17.0.4,
+    256 bits) (MESA_LLVMPIPE))
+
+This patch ensures that Zink + software rendering is used only when the
+user opts-in by setting `LIBGL_ALWAYS_SOFTWARE` or `D3D_ALWAYS_SOFTWARE`
+and swrast is used otherwise.
+
+After the patch, the output of `eglinfo` is identical to the one before
+the regression:
+
+    $ eglinfo
+    [...]
+    Wayland platform:
+    EGL driver name: swrast
+    OpenGL core profile renderer: llvmpipe (LLVM 17.0.4, 256 bits)
+
+Resolves: https://gitlab.freedesktop.org/mesa/mesa/-/issues/10146
+Fixes: 8cd44b884387 ("egl: add automatic zink fallback loading between
+hw and sw drivers")
+
+Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
+Signed-off-by: José Expósito <jexposit@redhat.com>
+Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26220>
+---
+ src/gallium/drivers/zink/zink_screen.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/src/gallium/drivers/zink/zink_screen.c b/src/gallium/drivers/zink/zink_screen.c
+index 29a377acfb6..50168d8daa1 100644
+--- a/src/gallium/drivers/zink/zink_screen.c
++++ b/src/gallium/drivers/zink/zink_screen.c
+@@ -1632,6 +1632,12 @@ choose_pdev(struct zink_screen *screen, int64_t dev_major, int64_t dev_minor)
+    }
+    VKSCR(GetPhysicalDeviceProperties)(screen->pdev, &screen->info.props);
+ 
++   /* allow software rendering only if forced by the user */
++   if (!cpu && screen->info.props.deviceType == VK_PHYSICAL_DEVICE_TYPE_CPU) {
++      screen->pdev = VK_NULL_HANDLE;
++      return;
++   }
++
+    screen->info.device_version = screen->info.props.apiVersion;
+ 
+    /* runtime version is the lesser of the instance version and device version */
+-- 
+2.41.0
+

mesa.spec

@@ -76,6 +76,7 @@ Source1:        Mesa-MLAA-License-Clarification-Email.txt
 Patch10:        gnome-shell-glthread-disable.patch
 Patch11:        0001-nir-add-deref-follower-builder-for-casts.patch
 Patch12:        0001-zink-Fix-crash-on-zink_create_screen-error-path.patch
+Patch13:        0001-zink-allow-software-rendering-only-if-selected.patch
 
 BuildRequires:  meson >= 1.2.0
 BuildRequires:  gcc