Add filesystem driver

CMakeLists.txt

@@ -2524,6 +2524,12 @@ elseif(PSP)
 elseif(PS2)
   list(APPEND EXTRA_CFLAGS "-DPS2")
 
+  if(SDL_FILESYSTEM)
+    set(SDL_FILESYSTEM_PS2 1)
+    file(GLOB PS2_FILESYSTEM_SOURCES ${SDL2_SOURCE_DIR}/src/filesystem/ps2/*.c)
+    set(SOURCE_FILES ${SOURCE_FILES} ${PS2_FILESYSTEM_SOURCES})
+    set(HAVE_SDL_FILESYSTEM TRUE)
+  endif()
   if(SDL_THREADS)
     set(SDL_THREAD_PS2 1)
     file(GLOB PS2_THREAD_SOURCES ${SDL2_SOURCE_DIR}/src/thread/generic/SDL_systls.c ${SDL2_SOURCE_DIR}/src/thread/generic/SDL_sysmutex.c ${SDL2_SOURCE_DIR}/src/thread/ps2/*.c)

include/SDL_config.h.cmake

@@ -496,6 +496,7 @@
 #cmakedefine SDL_FILESYSTEM_OS2 @SDL_FILESYSTEM_OS2@
 #cmakedefine SDL_FILESYSTEM_VITA @SDL_FILESYSTEM_VITA@
 #cmakedefine SDL_FILESYSTEM_PSP @SDL_FILESYSTEM_PSP@
+#cmakedefine SDL_FILESYSTEM_PS2 @SDL_FILESYSTEM_PS2@
 
 /* Enable misc subsystem */
 #cmakedefine SDL_MISC_DUMMY @SDL_MISC_DUMMY@

include/SDL_config.h.in

@@ -460,6 +460,7 @@
 #undef SDL_FILESYSTEM_OS2
 #undef SDL_FILESYSTEM_VITA
 #undef SDL_FILESYSTEM_PSP
+#undef SDL_FILESYSTEM_PS2
 
 /* Enable misc subsystem */
 #undef SDL_MISC_DUMMY

src/filesystem/ps2/SDL_sysfilesystem.c

@@ -0,0 +1,81 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "../../SDL_internal.h"
+
+#include <sys/stat.h>
+#include <unistd.h>
+
+#if defined(SDL_FILESYSTEM_PS2)
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+/* System dependent filesystem routines                                */
+
+#include "SDL_error.h"
+#include "SDL_filesystem.h"
+
+char *
+SDL_GetBasePath(void)
+{
+  char *retval;
+  size_t len;
+  char cwd[FILENAME_MAX];
+
+  getcwd(cwd, sizeof(cwd));
+  len = SDL_strlen(cwd) + 1;
+  retval = (char *) SDL_malloc(len);
+  if (retval)
+    SDL_memcpy(retval, cwd, len);
+
+  return retval;
+}
+
+char *
+SDL_GetPrefPath(const char *org, const char *app)
+{
+  char *retval = NULL;
+  size_t len;
+  char *base = SDL_GetBasePath();
+  if (!app) {
+    SDL_InvalidParamError("app");
+    return NULL;
+  }
+  if(!org) {
+    org = "";
+  }
+
+  len = SDL_strlen(base) + SDL_strlen(org) + SDL_strlen(app) + 4;
+  retval = (char *) SDL_malloc(len);
+
+  if (*org) {
+    SDL_snprintf(retval, len, "%s%s/%s/", base, org, app);
+  } else {
+    SDL_snprintf(retval, len, "%s%s/", base, app);
+  }
+  free(base);
+
+  mkdir(retval, 0x0755);
+  
+  return retval;
+}
+
+#endif /* SDL_FILESYSTEM_PS2 */
+
+/* vi: set ts=4 sw=4 expandtab: */