5 files changed, 235 insertions, 0 deletions
diff --git a/include/util/dbus.hpp b/include/util/dbus.hpp
new file mode 100644
index 0000000..ae10773
--- /dev/null
+++ b/include/util/dbus.hpp
@@ -0,0 +1,33 @@
+// Display images inside a terminal
+// Copyright (C) 2023  JustKidding
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#ifndef UEBERZUGPP_DBUS_HPP
+#define UEBERZUGPP_DBUS_HPP
+
+#include <dbus/dbus.h>
+#include <string>
+
+class DbusUtil
+{
+  public:
+    explicit DbusUtil(const std::string &address);
+    ~DbusUtil();
+
+  private:
+    DBusConnection *connection = nullptr;
+};
+
+#endif // UEBERZUGPP_DBUS_HPP
diff --git a/include/util/egl.hpp b/include/util/egl.hpp
new file mode 100644
index 0000000..05a1373
--- /dev/null
+++ b/include/util/egl.hpp
@@ -0,0 +1,54 @@
+// Display images inside a terminal
+// Copyright (C) 2023  JustKidding
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#ifndef UTIL_EGL_H
+#define UTIL_EGL_H
+
+#include "image.hpp"
+
+#include <functional>
+#include <memory>
+
+#include <spdlog/fwd.h>
+
+#include <EGL/egl.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/gl.h>
+
+template <class T, class V>
+class EGLUtil
+{
+  public:
+    EGLUtil(EGLenum platform, T *native_display, const EGLAttrib *attrib = nullptr);
+    ~EGLUtil();
+
+    void get_texture_from_image(const Image &image, GLuint texture) const;
+    void run_contained(EGLSurface surface, EGLContext context, const std::function<void()> &func) const;
+    void make_current(EGLSurface surface, EGLContext context) const;
+    void restore() const;
+    [[nodiscard]] auto create_surface(V *native_window) const -> EGLSurface;
+    [[nodiscard]] auto create_context(EGLSurface surface) const -> EGLContext;
+
+    EGLDisplay display;
+
+  private:
+    EGLConfig config;
+    std::shared_ptr<spdlog::logger> logger;
+
+    [[nodiscard]] auto error_to_string() const -> std::string;
+};
+
+#endif
diff --git a/include/util/ptr.hpp b/include/util/ptr.hpp
new file mode 100644
index 0000000..0e8be3f
--- /dev/null
+++ b/include/util/ptr.hpp
@@ -0,0 +1,53 @@
+// Display images inside a terminal
+// Copyright (C) 2023  JustKidding
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#ifndef UTIL_PTR_H
+#define UTIL_PTR_H
+
+#include <memory>
+
+template <auto fn>
+struct deleter_from_fn {
+    template <typename T>
+    constexpr void operator()(T *arg) const
+    {
+        fn(const_cast<std::remove_const_t<T> *>(arg));
+    }
+};
+
+template <auto fn>
+struct deleter_from_fn_null {
+    template <typename T>
+    constexpr void operator()(T *arg) const
+    {
+        if (arg != nullptr) {
+            fn(const_cast<std::remove_const_t<T> *>(arg));
+        }
+    }
+};
+
+// custom unique pointer
+template <typename T, auto fn>
+using c_unique_ptr = std::unique_ptr<T, deleter_from_fn<fn>>;
+
+// custom unique pointer that checks for null before deleting
+template <typename T, auto fn>
+using cn_unique_ptr = std::unique_ptr<T, deleter_from_fn_null<fn>>;
+
+template <typename T>
+using unique_C_ptr = std::unique_ptr<T, deleter_from_fn<std::free>>;
+
+#endif
diff --git a/include/util/socket.hpp b/include/util/socket.hpp
new file mode 100644
index 0000000..14859ae
--- /dev/null
+++ b/include/util/socket.hpp
@@ -0,0 +1,46 @@
+// Display images inside a terminal
+// Copyright (C) 2023  JustKidding
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#ifndef UTIL_SOCKET_H
+#define UTIL_SOCKET_H
+
+#include <cstdint>
+#include <string>
+#include <string_view>
+#include <vector>
+
+class UnixSocket
+{
+  public:
+    UnixSocket();
+    explicit UnixSocket(std::string_view endpoint);
+    ~UnixSocket();
+
+    void connect_to_endpoint(std::string_view endpoint);
+    void bind_to_endpoint(std::string_view endpoint) const;
+    [[nodiscard]] auto wait_for_connections(int waitms) const -> int;
+    [[nodiscard]] auto read_data_from_connection(int filde) -> std::vector<std::string>;
+    void write(const void *data, std::size_t len) const;
+    void read(void *data, std::size_t len) const;
+    [[nodiscard]] auto read_until_empty() const -> std::string;
+
+  private:
+    int fd;
+    bool connected = true;
+    std::string buffer;
+};
+
+#endif
diff --git a/include/util/x11.hpp b/include/util/x11.hpp
new file mode 100644
index 0000000..ee3542b
--- /dev/null
+++ b/include/util/x11.hpp
@@ -0,0 +1,49 @@
+// Display images inside a terminal
+// Copyright (C) 2023  JustKidding
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#ifndef X11_UTIL_H
+#define X11_UTIL_H
+
+#include <initializer_list>
+#include <memory>
+#include <unordered_map>
+#include <vector>
+
+#include <xcb/xcb.h>
+
+class X11Util
+{
+  public:
+    X11Util();
+    explicit X11Util(xcb_connection_t *connection);
+    ~X11Util();
+
+    [[nodiscard]] auto get_server_window_ids() const -> std::vector<xcb_window_t>;
+    [[nodiscard]] auto get_pid_window_map() const -> std::unordered_map<uint32_t, xcb_window_t>;
+    [[nodiscard]] auto get_window_dimensions(xcb_window_t window) const -> std::pair<uint16_t, uint16_t>;
+    [[nodiscard]] auto get_parent_window(int pid) const -> xcb_window_t;
+    [[nodiscard]] auto window_has_properties(xcb_window_t window, std::initializer_list<xcb_atom_t> properties) const
+        -> bool;
+
+    bool connected = false;
+
+  private:
+    xcb_connection_t *connection;
+    xcb_screen_t *screen = nullptr;
+    bool owns_connection = true;
+};
+
+#endif