Advance Wayland and KDE package bring-up

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

local/recipes/kde/kwin/source/src/wayland/alphamodifier_v1.cpp

@@ -0,0 +1,75 @@
+/*
+    SPDX-FileCopyrightText: 2024 Xaver Hugl <xaver.hugl@gmail.com>
+
+    SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
+*/
+#include "alphamodifier_v1.h"
+
+#include "display.h"
+#include "surface.h"
+#include "surface_p.h"
+
+namespace KWin
+{
+
+static constexpr uint32_t s_version = 1;
+
+AlphaModifierManagerV1::AlphaModifierManagerV1(Display *display, QObject *parent)
+    : QObject(parent)
+    , QtWaylandServer::wp_alpha_modifier_v1(*display, s_version)
+{
+}
+
+void AlphaModifierManagerV1::wp_alpha_modifier_v1_destroy(Resource *resource)
+{
+    wl_resource_destroy(resource->handle);
+}
+
+void AlphaModifierManagerV1::wp_alpha_modifier_v1_get_surface(Resource *resource, uint32_t id, ::wl_resource *surface)
+{
+    SurfaceInterface *surf = SurfaceInterface::get(surface);
+    SurfaceInterfacePrivate *priv = SurfaceInterfacePrivate::get(surf);
+    if (priv->alphaModifier) {
+        wl_resource_post_error(surface, error_already_constructed, "wl_surface already has an alpha modifier surface");
+        return;
+    }
+    new AlphaModifierSurfaceV1(resource->client(), id, resource->version(), surf);
+}
+
+AlphaModifierSurfaceV1::AlphaModifierSurfaceV1(wl_client *client, uint32_t id, uint32_t version, SurfaceInterface *surface)
+    : QtWaylandServer::wp_alpha_modifier_surface_v1(client, id, version)
+    , m_surface(surface)
+{
+}
+
+AlphaModifierSurfaceV1::~AlphaModifierSurfaceV1()
+{
+    if (m_surface) {
+        const auto priv = SurfaceInterfacePrivate::get(m_surface);
+        priv->pending->alphaMultiplier = 1;
+        priv->pending->alphaMultiplierIsSet = true;
+    }
+}
+
+void AlphaModifierSurfaceV1::wp_alpha_modifier_surface_v1_destroy_resource(Resource *resource)
+{
+    delete this;
+}
+
+void AlphaModifierSurfaceV1::wp_alpha_modifier_surface_v1_destroy(Resource *resource)
+{
+    wl_resource_destroy(resource->handle);
+}
+
+void AlphaModifierSurfaceV1::wp_alpha_modifier_surface_v1_set_multiplier(Resource *resource, uint32_t factor)
+{
+    if (!m_surface) {
+        wl_resource_post_error(resource->handle, error_no_surface, "wl_surface was destroyed before a set_multiplier request");
+        return;
+    }
+    const auto priv = SurfaceInterfacePrivate::get(m_surface);
+    priv->pending->alphaMultiplier = factor / double(std::numeric_limits<uint32_t>::max());
+    priv->pending->alphaMultiplierIsSet = true;
+}
+
+}