From 2b6edbccbc001ec962039ed939febe2bf925dc4b Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Thu, 21 Mar 2024 11:47:48 +0530
Subject: [PATCH] Start work on fractional scale support for Wayland

Register the interface on startup
---
 glfw/source-info.json | 3 ++-
 glfw/wl_init.c        | 5 +++++
 glfw/wl_platform.h    | 2 ++
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/glfw/source-info.json b/glfw/source-info.json
index cd5e88548..90f4d393a 100644
--- a/glfw/source-info.json
+++ b/glfw/source-info.json
@@ -79,7 +79,8 @@
       "unstable/text-input/text-input-unstable-v3.xml",
       "staging/xdg-activation/xdg-activation-v1.xml",
       "unstable/tablet/tablet-unstable-v2.xml",
-      "staging/cursor-shape/cursor-shape-v1.xml"
+      "staging/cursor-shape/cursor-shape-v1.xml",
+      "staging/fractional-scale/fractional-scale-v1.xml"
     ],
     "sources": [
       "wl_init.c",
diff --git a/glfw/wl_init.c b/glfw/wl_init.c
index 69d77c54f..9e21d5a71 100644
--- a/glfw/wl_init.c
+++ b/glfw/wl_init.c
@@ -726,6 +726,9 @@ static void registryHandleGlobal(void* data UNUSED,
     else if (is(wp_cursor_shape_manager_v1)) {
         _glfw.wl.wp_cursor_shape_manager_v1 = wl_registry_bind(registry, name, &wp_cursor_shape_manager_v1_interface, 1);
     }
+    else if (is(wp_fractional_scale_manager_v1)) {
+        _glfw.wl.wp_fractional_scale_manager_v1 = wl_registry_bind(registry, name, &wp_fractional_scale_manager_v1_interface, 1);
+    }
 #undef is
 }
 
@@ -962,6 +965,8 @@ void _glfwPlatformTerminate(void)
         xdg_activation_v1_destroy(_glfw.wl.xdg_activation_v1);
     if (_glfw.wl.wp_cursor_shape_manager_v1)
         wp_cursor_shape_manager_v1_destroy(_glfw.wl.wp_cursor_shape_manager_v1);
+    if (_glfw.wl.wp_fractional_scale_manager_v1)
+        wp_fractional_scale_manager_v1_destroy(_glfw.wl.wp_fractional_scale_manager_v1);
 
     if (_glfw.wl.registry)
         wl_registry_destroy(_glfw.wl.registry);
diff --git a/glfw/wl_platform.h b/glfw/wl_platform.h
index 2dfa9eb72..a5bafe2e8 100644
--- a/glfw/wl_platform.h
+++ b/glfw/wl_platform.h
@@ -60,6 +60,7 @@ typedef VkBool32 (APIENTRY *PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR
 #include "wayland-primary-selection-unstable-v1-client-protocol.h"
 #include "wayland-xdg-activation-v1-client-protocol.h"
 #include "wayland-cursor-shape-v1-client-protocol.h"
+#include "wayland-fractional-scale-v1-client-protocol.h"
 
 #define _glfw_dlopen(name) dlopen(name, RTLD_LAZY | RTLD_LOCAL)
 #define _glfw_dlclose(handle) dlclose(handle)
@@ -288,6 +289,7 @@ typedef struct _GLFWlibraryWayland
     struct xdg_activation_v1* xdg_activation_v1;
     struct wp_cursor_shape_manager_v1* wp_cursor_shape_manager_v1;
     struct wp_cursor_shape_device_v1* wp_cursor_shape_device_v1;
+    struct wp_fractional_scale_manager_v1 *wp_fractional_scale_manager_v1;
 
     int                         compositorVersion;
     int                         seatVersion;