1 files changed, 149 insertions, 0 deletions
diff --git a/indra/llwindow/llsdl.cpp b/indra/llwindow/llsdl.cpp
new file mode 100644
index 0000000000..1df9f38a6d
--- /dev/null
+++ b/indra/llwindow/llsdl.cpp
@@ -0,0 +1,149 @@
+/**
+ * @file llsdl.cpp
+ * @brief SDL2 initialization
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#include <initializer_list>
+#include <list>
+
+#include "SDL3/SDL.h"
+
+#ifndef LL_SDL_APP
+#define SDL_MAIN_HANDLED 1
+#include "SDL3/SDL_main.h"
+#endif
+
+#include "llerror.h"
+#include "llwindow.h"
+
+bool gSDLMainHandled = false;
+
+void sdl_logger(void *userdata, int category, SDL_LogPriority priority, const char *message)
+{
+    switch (priority)
+    {
+        case SDL_LOG_PRIORITY_TRACE:
+        case SDL_LOG_PRIORITY_VERBOSE:
+        case SDL_LOG_PRIORITY_DEBUG:
+            LL_DEBUGS("SDL") << "log='" << message << "'" << LL_ENDL;
+            break;
+        case SDL_LOG_PRIORITY_INFO:
+            LL_INFOS("SDL") << "log='" << message << "'" << LL_ENDL;
+            break;
+        case SDL_LOG_PRIORITY_WARN:
+        case SDL_LOG_PRIORITY_ERROR:
+        case SDL_LOG_PRIORITY_CRITICAL:
+            LL_WARNS("SDL") << "log='" << message << "'" << LL_ENDL;
+            break;
+        case SDL_LOG_PRIORITY_INVALID:
+        default:
+            break;
+    }
+}
+
+void init_sdl(const std::string& app_name)
+{
+#ifndef LL_SDL_APP
+    if (!gSDLMainHandled)
+    {
+        SDL_SetMainReady();
+    }
+#endif
+
+    SDL_SetLogOutputFunction(&sdl_logger, nullptr);
+
+    const int c_sdl_version = SDL_VERSION;
+    LL_INFOS() << "Compiled against SDL "
+               << SDL_VERSIONNUM_MAJOR(c_sdl_version) << "."
+               << SDL_VERSIONNUM_MINOR(c_sdl_version) << "."
+               << SDL_VERSIONNUM_MICRO(c_sdl_version) << LL_ENDL;
+    const int r_sdl_version = SDL_GetVersion();
+    LL_INFOS() << "Running with SDL "
+               << SDL_VERSIONNUM_MAJOR(r_sdl_version) << "."
+               << SDL_VERSIONNUM_MINOR(r_sdl_version) << "."
+               << SDL_VERSIONNUM_MICRO(r_sdl_version) << LL_ENDL;
+
+#if LL_WINDOWS && defined(LL_SDL_WINDOW)
+    Uint32 style = 0;
+#if defined(CS_BYTEALIGNCLIENT) && defined(CS_OWNDC)
+    style = (CS_BYTEALIGNCLIENT | CS_OWNDC);
+#endif
+    SDL_RegisterApp(app_name.c_str(), style, nullptr);
+#endif
+
+#if LL_SDL_WINDOW
+    // For linux we SDL_INIT_VIDEO and _AUDIO
+    std::initializer_list<std::tuple< char const*, char const * > > hintList =
+            {
+                    {SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR,"0"},
+                    {SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH,"1"},
+                    {SDL_HINT_MOUSE_EMULATE_WARP_WITH_RELATIVE,"0"},
+                    {SDL_HINT_MOUSE_RELATIVE_WARP_MOTION,"1"},
+                    {SDL_HINT_KEYCODE_OPTIONS,"french_numbers,latin_letters"}
+            };
+
+    for (auto hint: hintList)
+    {
+        SDL_SetHint(std::get<0>(hint), std::get<1>(hint));
+    }
+
+    std::initializer_list<std::tuple<uint32_t, char const*, bool>> initList=
+            {
+                {SDL_INIT_VIDEO,"SDL_INIT_VIDEO", true},
+                {SDL_INIT_JOYSTICK,"SDL_INIT_JOYSTICK", true},
+                {SDL_INIT_GAMEPAD,"SDL_INIT_GAMEPAD", true},
+            };
+#else
+    // For non-linux platforms we still SDL_INIT_VIDEO because it is a pre-requisite
+    // for SDL_INIT_GAMECONTROLLER.
+    std::initializer_list<std::tuple<uint32_t, char const*, bool>> initList=
+            {
+                {SDL_INIT_VIDEO,"SDL_INIT_VIDEO", false},
+            };
+#endif // LL_LINUX
+    // We SDL_INIT_GAMECONTROLLER later in the startup process to make it
+    // more likely we'll catch initial SDL_CONTROLLERDEVICEADDED events.
+
+    for (auto subSystem : initList)
+    {
+        if (!SDL_InitSubSystem(std::get<0>(subSystem)))
+        {
+            LL_WARNS() << "SDL_InitSubSystem for " << std::get<1>(subSystem) << " failed " << SDL_GetError() << LL_ENDL;
+
+            if (std::get<2>(subSystem))
+            {
+                OSMessageBox("SDL_Init() failure", "error", OSMB_OK);
+                return;
+            }
+        }
+    }
+}
+
+void quit_sdl()
+{
+#if LL_WINDOWS && defined(LL_SDL_WINDOW)
+    SDL_UnregisterApp();
+#endif
+    SDL_Quit();
+}