fix gamescope for older GPUs (#1930)

* gamescope: make the SDL backend the default backend for all builds

* add back funny patches

* Obsolete gamescope-legacy with wrapper script, fix multiarch subpackage

* fix dependency issue

* terra downstream script patches

* add the ctrl patch properly

* revert

* update to 3.15.0

* simplify wrapper script

* handle calling gamescope-legacy from non-gamescope session

* Use my PR patch for gamescope fallback

* format patch from github

* update patch

---------

Signed-off-by: Cappy Ishihara <[email protected]>

anda/games/gamescope/0001-cstdint.patch

@@ -0,0 +1,36 @@
+From 5529e8ac8f3232ec6233e33286834548e1d8018d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Franti=C5=A1ek=20Zatloukal?= <[email protected]>
+Date: Sun, 8 Oct 2023 22:10:33 +0200
+Subject: [PATCH] <cstdint>
+
+---
+ src/reshade/source/effect_parser_stmt.cpp | 1 +
+ src/reshade/source/effect_token.hpp       | 1 +
+ 2 files changed, 2 insertions(+)
+
+diff --git a/src/reshade/source/effect_parser_stmt.cpp b/src/reshade/source/effect_parser_stmt.cpp
+index 7829729..f126be2 100644
+--- a/src/reshade/source/effect_parser_stmt.cpp
++++ b/src/reshade/source/effect_parser_stmt.cpp
+@@ -9,6 +9,7 @@
+ #include <cctype> // std::toupper
+ #include <cassert>
+ #include <functional>
++#include <limits>
+ #include <string_view>
+
+ struct on_scope_exit
+diff --git a/src/reshade/source/effect_token.hpp b/src/reshade/source/effect_token.hpp
+index 072d439..e4bb633 100644
+--- a/src/reshade/source/effect_token.hpp
++++ b/src/reshade/source/effect_token.hpp
+@@ -5,6 +5,7 @@
+
+ #pragma once
+
++#include <cstdint>
+ #include <string>
+ #include <vector>
+
+-- 
+2.41.0

anda/games/gamescope/0001-limits.patch

@@ -0,0 +1,21 @@
+From 88ce1e5de62886aa14c74421cde6130e16e70d7d Mon Sep 17 00:00:00 2001
+From: psykose <[email protected]>
+Date: Sat, 6 Jul 2024 20:52:50 +0200
+Subject: [PATCH] utils: include limits.h for PATH_MAX
+
+---
+ src/Utils/Process.cpp | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/Utils/Process.cpp b/src/Utils/Process.cpp
+index e71786f75..3e748e0d3 100644
+--- a/src/Utils/Process.cpp
++++ b/src/Utils/Process.cpp
+@@ -21,6 +21,7 @@
+ #include <pthread.h>
+ #include <stdlib.h>
+ #include <dirent.h>
++#include <limits.h>
+ #include <unistd.h>
+ #include <sys/types.h>
+ #include <signal.h>

anda/games/gamescope/1483.patch

@@ -0,0 +1,34 @@
+From ca58cb2453e6d9ef44d799e394ee9950b7a35b30 Mon Sep 17 00:00:00 2001
+From: Cappy Ishihara <[email protected]>
+Date: Wed, 21 Aug 2024 03:56:53 +0700
+Subject: [PATCH] Check if current GPU supports Vulkan DRM modifiers when
+ `--backend=auto` is used.
+
+This works around #1218 by making use of the new backend option added in #1321,
+but adds a check to automatically fall back to the SDL backend if the current
+GPU does not support Vulkan DRM modifiers.
+---
+ src/main.cpp | 10 +++++++---
+ 1 file changed, 7 insertions(+), 3 deletions(-)
+
+diff --git a/src/main.cpp b/src/main.cpp
+index ca4001249..bc6b16904 100644
+--- a/src/main.cpp
++++ b/src/main.cpp
+@@ -817,9 +817,13 @@ int main(int argc, char **argv)
+ 	if ( eCurrentBackend == gamescope::GamescopeBackend::Auto )
+ 	{
+ 		if ( g_pOriginalWaylandDisplay != NULL )
+-			eCurrentBackend = gamescope::GamescopeBackend::Wayland;
+-		else if ( g_pOriginalDisplay != NULL )
+-			eCurrentBackend = gamescope::GamescopeBackend::SDL;
++			// Additional check if the current GPU supports Vulkan DRM modifiers
++			// Fallback to SDL if not supported (e.g Older AMD GPUs like Polaris 10/20)
++			if ( vulkan_supports_modifiers() ) 
++				eCurrentBackend = gamescope::GamescopeBackend::Wayland;
++			else
++				eCurrentBackend = gamescope::GamescopeBackend::SDL;
++
+ 		else
+ 			eCurrentBackend = gamescope::GamescopeBackend::DRM;
+ 	}