Add Nintendo Switch support

.gitignore

@@ -1,5 +1,6 @@
 rvm.xcodeproj/project.xcworkspace/xcuserdata
 .vs
+.vscode
 Rvm_Win64/x64
 /x64*
 *.o

CMakeLists.txt

@@ -0,0 +1,49 @@
+project(soniccd)
+
+cmake_minimum_required(VERSION 3.0)
+
+include(FindPkgConfig)
+
+set(CMAKE_C_FLAGS "-g -DLINUX -DSDL_DISABLE_IMMINTRIN_H -DSDL_DISABLE_MMINTRIN_H -std=c99 ${CMAKE_C_FLAGS}")
+
+pkg_check_modules(SDL2 sdl2 REQUIRED)
+if(NSWITCH)
+  set(CMAKE_C_FLAGS "-DGLEW_NO_GLU ${CMAKE_C_FLAGS}")
+  find_package(GLEW REQUIRED)
+  find_library(GLEW_LIBRARY NAMES GLEW)
+  set(EXTRA_LIBS mpg123 modplug mikmod vorbisfile vorbis ogg FLAC fluidsynth opusfile opus ${GLEW_LIBRARY} stdc++)
+else()
+  set(OpenGL_GL_PREFERENCE LEGACY)
+  find_package(OpenGL REQUIRED)
+  set(EXTRA_LIBS ${OPENGL_gl_LIBRARY})
+endif(NSWITCH)
+
+include_directories(
+  ${SDL2_INCLUDE_DIRS}
+  ${CMAKE_SOURCE_DIR}/rvm/Core
+)
+
+file(GLOB SRC rvm/*.c rvm/Core/*.c)
+add_executable(${CMAKE_PROJECT_NAME}
+  ${SRC}
+)
+
+target_link_libraries(${CMAKE_PROJECT_NAME}
+  SDL2_mixer
+  ${SDL2_LIBRARIES}
+  ${EXTRA_LIBS}
+  m
+)
+
+if(NSWITCH)
+  add_definitions(-D__SWITCH__)
+  add_custom_target(${CMAKE_PROJECT_NAME}.nro
+    DEPENDS ${CMAKE_PROJECT_NAME}
+    COMMAND nacptool --create "Sonic CD" "Sappharad, usineur" "0.7.5" ${CMAKE_PROJECT_NAME}.nacp
+    COMMAND elf2nro ${CMAKE_PROJECT_NAME} ${CMAKE_PROJECT_NAME}.nro --icon=${CMAKE_SOURCE_DIR}/icon.jpg --nacp=${CMAKE_PROJECT_NAME}.nacp
+  )
+  add_custom_target(nxlink
+    COMMAND nxlink -a $(SWITCHIP) ${CMAKE_PROJECT_NAME}.nro -s -p ${CMAKE_PROJECT_NAME}/${CMAKE_PROJECT_NAME}.nro
+    DEPENDS ${CMAKE_PROJECT_NAME}.nro
+  )
+endif(NSWITCH)

rvm/Core/AnimationSystem.c

@@ -87,7 +87,7 @@ void AnimationSystem_LoadAnimationFile(char* filePath)
                 animationFrames[animationFramesNo].xSize = (int)b2;
                 b2 = FileIO_ReadByte();
                 animationFrames[animationFramesNo].ySize = (int)b2;
-                char b3 = (char)FileIO_ReadByte();
+                signed char b3 = (signed char)FileIO_ReadByte();
                 animationFrames[animationFramesNo].xPivot = (int)b3;
                 b3 = (char)FileIO_ReadByte();
                 animationFrames[animationFramesNo].yPivot = (int)b3;

rvm/Core/FileIO.c

@@ -278,6 +278,7 @@ bool FileIO_CheckRSDKFile()
     useRSDKFile = true;
     useByteCode = false;
     fclose(fileReader);
+    fileReader = NULL;
 
     if (FileIO_LoadFile("Data/Scripts/ByteCode/GlobalCode.bin", &fData))
     {

rvm/Core/InputSystem.c

@@ -189,11 +189,19 @@ void InputSystem_CheckGamepadInput(){
         {
             touchData.right = 1;
         }
+#ifdef __SWITCH__
+        if(SDL_GameControllerGetButton(sdlController, SDL_CONTROLLER_BUTTON_B))
+#else
         if(SDL_GameControllerGetButton(sdlController, SDL_CONTROLLER_BUTTON_A))
+#endif
         {
             touchData.buttonA = 1;
         }
+#ifdef __SWITCH__
+        if(SDL_GameControllerGetButton(sdlController, SDL_CONTROLLER_BUTTON_A))
+#else
         if(SDL_GameControllerGetButton(sdlController, SDL_CONTROLLER_BUTTON_B))
+#endif
         {
             touchData.buttonB = 1;
         }

rvm/Core/RenderDevice.c

@@ -8,9 +8,11 @@
 #include <Windows.h>
 #include <GL/glew.h>
 #pragma comment(lib, "glew32s.lib")
+#elif __SWITCH__
+#include <GL/glew.h>
 #elif LINUX
-#include <gl/GL.h>
-#include <gl/glext.h>
+#include <GL/gl.h>
+#include <GL/glext.h>
 #else
 #include <OpenGL/gl.h>
 #endif

rvm/main_linux.c

@@ -3,8 +3,12 @@
 #include <string.h>
 #include <math.h>
 #include <SDL2/SDL.h>
+#ifdef __SWITCH__
+#include <GL/glew.h>
+#include <switch.h>
+#else
 #include <SDL2/SDL_opengl.h>
-#include <GL/gl.h>
+#endif
 #include "GlobalAppDefinitions.h"
 #include "GraphicsSystem.h"
 #ifdef __EMSCRIPTEN__
@@ -34,6 +38,10 @@ static void initAttributes()
 	//     on OpenGL double buffering.
 	value = 1;
 	SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, value);
+
+#ifdef __SWITCH__
+	SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_COMPATIBILITY);
+#endif
 }
 
 static void printAttributes()
@@ -77,6 +85,14 @@ static void createSurface(int fullscreen)
 		exit(2);
 	}
 	SDL_GL_CreateContext(gWindow);
+#ifdef __SWITCH__
+	GLenum err = glewInit();
+	if (err != GLEW_OK) {
+		fprintf(stderr, "glewInit() failed: %s\n", glewGetErrorString(err));
+		SDL_Quit();
+		return;
+	}
+#endif
 
 	glViewport(0, 0, 800, 480);
 	//glViewport(0, 0, 864, 480);
@@ -98,6 +114,7 @@ static void createSurface(int fullscreen)
 
 void UpdateIO() {
 	InputSystem_CheckKeyboardInput();
+	InputSystem_CheckGamepadInput();
 	InputSystem_ClearTouchData();
 
 	if (stageMode != 2)
@@ -216,8 +233,12 @@ void loop_func(void *arg) {
 
 int main (int argc, char **argv)
 {
+#ifdef __SWITCH__
+	socketInitializeDefault();
+	nxlinkStdio();
+#endif
 	// Init SDL video subsystem
-	if (SDL_Init(SDL_INIT_VIDEO) < 0) {
+	if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0) {
 
 		fprintf(stderr, "Couldn't initialize SDL: %s\n",
 			SDL_GetError());
@@ -248,6 +269,9 @@ int main (int argc, char **argv)
 	// Cleanup
 	SDL_Quit();
 
+#ifdef __SWITCH__
+	socketExit();
+#endif
+
 	return 0;
 }
-