[bug#70493] [PATCH 4/4] gnu: Add gamescope.

[dan <i@dan.games>]

* gnu/packages/wm.scm (%gamescope-version): New variable.
(reshade-for-gamescope): New variable.
(gamescope): New variable.

Change-Id: If86bc6127144854189f8fa66415f32bc80a26d6b
---
 gnu/packages/wm.scm | 110 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 110 insertions(+)

diff --git a/gnu/packages/wm.scm b/gnu/packages/wm.scm
index 2eecc0ed2a..8d816e2e28 100644
--- a/gnu/packages/wm.scm
+++ b/gnu/packages/wm.scm
@@ -70,6 +70,7 @@
 ;;; Copyright © 2024 Ahmad Draidi <a.r.draidi@redscript.org>
 ;;; Copyright © 2024 chris <chris@bumblehead.com>
 ;;; Copyright © 2024 Erik Eduardo Alonso Hernández <erik@erikeduardo.xyz>
+;;; Copyright © 2024 dan <i@dan.games>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -105,6 +106,7 @@ (define-module (gnu packages wm)
   #:use-module (guix utils)
   #:use-module (gnu packages)
   #:use-module (gnu packages bash)
+  #:use-module (gnu packages benchmark)
   #:use-module (gnu packages admin)
   #:use-module (gnu packages autotools)
   #:use-module (gnu packages base)
@@ -142,6 +144,7 @@ (define-module (gnu packages wm)
   #:use-module (gnu packages logging)
   #:use-module (gnu packages lua)
   #:use-module (gnu packages man)
+  #:use-module (gnu packages maths)
   #:use-module (gnu packages mpd)
   #:use-module (gnu packages pciutils)
   #:use-module (gnu packages music)
@@ -155,12 +158,15 @@ (define-module (gnu packages wm)
   #:use-module (gnu packages python-crypto)
   #:use-module (gnu packages python-xyz)
   #:use-module (gnu packages readline)
+  #:use-module (gnu packages sdl)
   #:use-module (gnu packages serialization)
   #:use-module (gnu packages sphinx)
+  #:use-module (gnu packages stb)
   #:use-module (gnu packages suckless)
   #:use-module (gnu packages texinfo)
   #:use-module (gnu packages textutils)
   #:use-module (gnu packages time)
+  #:use-module (gnu packages vulkan)
   #:use-module (gnu packages web)
   #:use-module (gnu packages xdisorg)
   #:use-module (gnu packages xml)
@@ -3856,3 +3862,107 @@ (define-public yambar-wayland
 for short) for X11 and Wayland, that goes to great lengths to be both CPU and
 battery efficient---polling is only done when absolutely necessary.")
     (license license:expat)))
+
+(define %gamescope-version "3.14.2")
+
+(define reshade-for-gamescope
+  (origin
+    (method git-fetch)
+    (uri (git-reference
+          (url "https://github.com/Joshua-Ashton/reshade")
+          (commit "9fdbea6892f9959fdc18095d035976c574b268b7")))
+    (file-name (git-file-name "reshade-for-gamescope" %gamescope-version))
+    (sha256
+     (base32 "1par0ay973l0bvlz0fsg3v1fxgrnn888yc0hx3ikkyc0jbbf59bg"))))
+
+(define-public gamescope
+  (package
+    (name "gamescope")
+    (version %gamescope-version)
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/ValveSoftware/gamescope")
+                    (commit version)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32 "0x7gh1rr2ismqfkaa4wm7025acjpgmims41iwzdcps5pg8nxmmhh"))))
+    (build-system meson-build-system)
+    (arguments
+     (list #:configure-flags #~(list "-Dpipewire=enabled"
+                                     "-Denable_openvr_support=false"
+                                     "-Dforce_fallback_for=[]"
+                                     (string-append "-Dc_args=-DHWDATA_PNP_IDS=\""
+                                                    #$(this-package-native-input "hwdata")
+                                                    "/share/hwdata/pnp.ids\""))
+           #:phases #~(modify-phases %standard-phases
+                        (add-after 'unpack 'patch-deps
+                          (lambda _
+                            (substitute* "src/reshade_effect_manager.cpp"
+                              (("/usr") #$output))
+                            (substitute* "src/meson.build"
+                              ;; patch stb
+                              (("dependency\\('stb'\\)")
+                               (format #f "declare_dependency(include_directories: ['~a'])"
+                                       (string-join
+                                        '#$(map (lambda (label) (this-package-native-input label))
+                                                (list "stb-image"
+                                                      "stb-image-resize"
+                                                      "stb-image-write"))
+                                        "','")))
+                              ;; patch libdisplay-info
+                              (("< 0.2.0")
+                               (string-append "<= " #$(package-version (this-package-input "libdisplay-info"))))
+                              (("reshade/") (string-append #$reshade-for-gamescope "/"))
+                              (("../thirdparty/SPIRV-Headers") #$(this-package-native-input "spirv-headers"))))))))
+    (inputs
+     (list glm
+           libavif-1.0
+           libcap
+           libdisplay-info
+           libdrm
+           libinput
+           libliftoff
+           libx11
+           libxcomposite
+           libxcursor
+           libxdamage
+           libxext
+           libxkbcommon
+           libxmu
+           libxrender
+           libxres
+           libxt
+           libxtst
+           pipewire
+           sdl2
+           vulkan-loader
+           wayland
+           wlroots))
+    (native-inputs
+     (list benchmark
+           ;; Lazily resolve the gcc-toolchain-12 to avoid a circular dependency.
+           (module-ref (resolve-interface '(gnu packages commencement))
+                       'gcc-toolchain-12)
+           glslang
+           `(,hwdata "pnp")
+           pkg-config
+           stb-image
+           stb-image-resize
+           stb-image-write
+           spirv-headers
+           vkroots
+           vulkan-headers
+           wayland-protocols))
+    (home-page "https://github.com/ValveSoftware/gamescope") 
+    (synopsis "Micro-compositor for running games")
+    (description
+     "gamescope is a micro-compositor for running games.  Its goal is to
+provide an isolated compositor that is tailored towards gaming and supports
+many gaming-centric features such as:
+@itemize
+@item Spoofing resolutions.
+@item Upscaling.
+@item Limiting framerates.
+@end itemize")
+    (license license:bsd-2)))
-- 
2.41.0