doomsday-gles.patch

@@ -0,0 +1,55 @@
+From: Jan Engelhardt <ej@inai.de>
+Date: 2026-01-28 11:20:43.161720676 +0100
+
+1.
+
+When building with -DDENG_OPENGL_API=GLES3,
+GLInfo::NV_texture_barrier does not exist because it is behind
+DENG_OPENGL. Because the call to glTextureBarrierNV() is conditional
+anyway, this suggests that placing the call in a macro block is not
+overly wrong.
+
+apps/client/src_render_fx_turbo.cpp: In member function ‘virtual void fx::Ramp::draw()’:
+apps/client/src_render_fx_turbo.cpp:744:21: error: ‘NV_texture_barrier’ is not a member of ‘de::GLInfo’
+  744 |             GLInfo::NV_texture_barrier()->glTextureBarrierNV();
+
+2.
+
+DE relies on the GL_BGRA8_EXT definition brought on via Qt5. But if
+Qt5 is not using GLES (but OpenGL 3.3), then building DE with GLES
+runs into a nondefinition error. Include the glext.h header.
+
+---
+ doomsday/apps/client/src/render/fx/ramp.cpp |    2 ++
+ doomsday/sdk/libgui/src/graphics/image.cpp  |    1 +
+ 2 files changed, 3 insertions(+)
+
+Index: Doomsday-Engine-2.3.1/doomsday/apps/client/src/render/fx/ramp.cpp
+===================================================================
+--- Doomsday-Engine-2.3.1.orig/doomsday/apps/client/src/render/fx/ramp.cpp
++++ Doomsday-Engine-2.3.1/doomsday/apps/client/src/render/fx/ramp.cpp
+@@ -91,10 +91,12 @@ void Ramp::draw()
+         d->uContrast   = de::max(0.1f, vid_contrast);
+         d->uBrightness = de::clamp(-0.8f, vid_bright, 0.8f);
+ 
++#ifdef DENG_OPENGL
+         if (GLInfo::extensions().NV_texture_barrier)
+         {
+             GLInfo::NV_texture_barrier()->glTextureBarrierNV();
+         }
++#endif
+ 
+         d->ramp.draw();
+     }
+Index: Doomsday-Engine-2.3.1/doomsday/sdk/libgui/src/graphics/image.cpp
+===================================================================
+--- Doomsday-Engine-2.3.1.orig/doomsday/sdk/libgui/src/graphics/image.cpp
++++ Doomsday-Engine-2.3.1/doomsday/sdk/libgui/src/graphics/image.cpp
+@@ -31,6 +31,7 @@
+ #include <QDataStream>
+ #include <QPainter>
+ #include <QColor>
++#include <GL/glext.h>
+ 
+ namespace de {
+ 

doomsday.changes

@@ -1,3 +1,14 @@
+-------------------------------------------------------------------
+Wed Jan 28 15:08:26 UTC 2026 - Jan Engelhardt <jengelh@inai.de>
+
+- Disable ARM & RISC-V builds, as the program crashes on startup
+  with SIGBUS.
+
+-------------------------------------------------------------------
+Wed Jan 28 10:21:22 UTC 2026 - Jan Engelhardt <jengelh@inai.de>
+
+- Add doomsday-gles.patch to fix a build failure on GLES3 platforms.
+
 -------------------------------------------------------------------
 Sat Mar 22 10:28:04 UTC 2025 - Jan Engelhardt <jengelh@inai.de>
 

doomsday.spec

@@ -1,7 +1,7 @@
 #
 # spec file for package doomsday
 #
-# Copyright (c) 2025 SUSE LLC
+# Copyright (c) 2026 SUSE LLC and contributors
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -28,6 +28,7 @@ Source2:        %name-rpmlintrc
 Patch1:         doomsday-no-abs-icon.patch
 Patch2:         doomsday-libs.diff
 Patch3:         doomsday-notime.diff
+Patch4:         doomsday-gles.patch
 BuildRequires:  Mesa-devel
 BuildRequires:  cmake
 BuildRequires:  gcc-c++ >= 6
@@ -54,13 +55,20 @@ BuildRequires:  pkgconfig(x11)
 BuildRequires:  pkgconfig(xext)
 BuildRequires:  pkgconfig(xrandr)
 BuildRequires:  pkgconfig(xxf86vm)
+%ifarch aarch64 %arm
+%define with_gles 1
+%endif
+%if !0%{?with_gles}
 # Mesa 9.2 has OpenGL 3.1, and doomsday 2.0 needs that.
+# But GLES is also fine... (ARM case)
 Requires:       Mesa-libGL1 >= 9.2
+%endif
 Provides:       jdoom = %version-%release
 Provides:       jheretic = %version-%release
 Provides:       jhexen = %version-%release
 Obsoletes:      deng < %version-%release
 Provides:       deng = %version-%release
+ExcludeArch:    %arm aarch64 riscv64
 
 %description
 The Doomsday Engine is a source port with support for Doom, Heretic,
@@ -71,9 +79,15 @@ and Hexen. It does not support BOOM extensions.
 
 %build
 cd doomsday
+#
+# The build fails if doomsday's GL API selection is not matching that of Qt5.
+# The openSUSE Qt5 build for ARM is using GLES...
+#
 %cmake \
-%ifarch aarch64 %arm
+%if 0%{?with_gles}
 	-DDENG_OPENGL_API=GLES3 \
+%else
+	-DDENG_OPENGL_API=3.3 \
 %endif
 	-DDENG_ASSIMP_EMBEDDED:BOOL=OFF \
 	-DCMAKE_SKIP_RPATH:BOOL=ON