lay base for netplay

cmake/FindENet.cmake

@@ -0,0 +1,48 @@
+# - Try to find enet
+# Once done this will define
+#
+#  ENET_FOUND - system has enet
+#  ENET_INCLUDE_DIRS - the enet include directory
+#  ENET_LIBRARIES - the libraries needed to use enet
+#
+# $ENETDIR is an environment variable used for finding enet.
+#
+#  Borrowed from The Mana World
+#  http://themanaworld.org/
+#
+# Several changes and additions by Fabian 'x3n' Landau
+# Lots of simplifications by Adrian Friedli
+#                 > www.orxonox.net <
+
+FIND_PATH(ENET_INCLUDE_DIRS enet/enet.h
+    PATHS
+    $ENV{ENETDIR}
+    /usr/local
+    /usr
+    PATH_SUFFIXES include
+)
+
+FIND_LIBRARY(ENET_LIBRARY
+    NAMES enet
+    PATHS
+    $ENV{ENETDIR}
+    /usr/local
+    /usr
+    PATH_SUFFIXES lib
+)
+
+# handle the QUIETLY and REQUIRED arguments and set ENET_FOUND to TRUE if
+# all listed variables are TRUE
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(ENet DEFAULT_MSG ENET_LIBRARY ENET_INCLUDE_DIRS)
+
+IF (ENET_FOUND)
+    IF(WIN32)
+        SET(WINDOWS_ENET_DEPENDENCIES "ws2_32;winmm")
+        SET(ENET_LIBRARIES ${ENET_LIBRARY} ${WINDOWS_ENET_DEPENDENCIES})
+    ELSE(WIN32)
+        SET(ENET_LIBRARIES ${ENET_LIBRARY})
+    ENDIF(WIN32)
+ENDIF (ENET_FOUND)
+
+MARK_AS_ADVANCED(ENET_LIBRARY ENET_LIBRARIES ENET_INCLUDE_DIRS)

src/frontend/qt_sdl/CMakeLists.txt

@@ -28,6 +28,7 @@ set(SOURCES_QT_SDL
 	IPC.cpp
     LAN_PCap.cpp
     LAN_Socket.cpp
+	Netplay.cpp
     OSD.cpp
     OSD_shaders.h
     font.h
@@ -91,6 +92,8 @@ add_compile_definitions(ARCHIVE_SUPPORT_ENABLED)
 
 add_executable(melonDS ${SOURCES_QT_SDL})
 
+find_package(ENet REQUIRED)
+
 if (WIN32)
     target_link_libraries(melonDS PUBLIC opengl32)
 
@@ -158,6 +161,7 @@ endif()
 target_link_libraries(melonDS PRIVATE core)
 target_link_libraries(melonDS PRIVATE PkgConfig::SDL2 PkgConfig::Slirp PkgConfig::LibArchive PkgConfig::Zstd)
 target_link_libraries(melonDS PRIVATE ${QT_LINK_LIBS} ${CMAKE_DL_LIBS})
+target_link_libraries(melonDS PRIVATE ${ENET_LIBRARIES})
 
 if (UNIX)
     option(PORTABLE "Make a portable build that looks for its configuration in the current directory" OFF)

src/frontend/qt_sdl/Netplay.cpp

@@ -0,0 +1,48 @@
+/*
+    Copyright 2016-2022 melonDS team
+
+    This file is part of melonDS.
+
+    melonDS 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.
+
+    melonDS 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 melonDS. If not, see http://www.gnu.org/licenses/.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <enet/enet.h>
+
+#include "Netplay.h"
+
+
+namespace Netplay
+{
+
+bool Init()
+{
+    if (enet_initialize() != 0)
+    {
+        printf("enet shat itself :(\n");
+        return false;
+    }
+
+    printf("enet init OK\n");
+    return true;
+}
+
+void DeInit()
+{
+    enet_deinitialize();
+}
+
+}

src/frontend/qt_sdl/Netplay.h

@@ -0,0 +1,32 @@
+/*
+    Copyright 2016-2022 melonDS team
+
+    This file is part of melonDS.
+
+    melonDS 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.
+
+    melonDS 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 melonDS. If not, see http://www.gnu.org/licenses/.
+*/
+
+#ifndef NETPLAY_H
+#define NETPLAY_H
+
+#include "types.h"
+
+namespace Netplay
+{
+
+bool Init();
+void DeInit();
+
+}
+
+#endif // NETPLAY_H

src/frontend/qt_sdl/main.cpp

@@ -88,6 +88,7 @@
 #include "Wifi.h"
 #include "Platform.h"
 #include "IPC.h"
+#include "Netplay.h"
 #include "Config.h"
 #include "DSi_I2C.h"
 
@@ -318,6 +319,7 @@ void EmuThread::run()
 
     IPC::InitSema();
     IPC::SetMPRecvTimeout(Config::MPRecvTimeout);
+    Netplay::Init();
 
     NDS::Init();
 
@@ -658,6 +660,7 @@ void EmuThread::run()
 
     GPU::DeInitRenderer();
     NDS::DeInit();
+    Netplay::DeInit();
     IPC::DeInitSema();
     //Platform::LAN_DeInit();
 }