Added SDL_GetBasePath() and SDL_GetPrefPath() in new filesystem module.

--HG--
extra : rebase_source : c1fac232063443a2880e64f1abda85e0bdb2e710

include/SDL.h

@@ -74,6 +74,7 @@
 #include "SDL_endian.h"
 #include "SDL_error.h"
 #include "SDL_events.h"
+#include "SDL_filesystem.h"
 #include "SDL_joystick.h"
 #include "SDL_gamecontroller.h"
 #include "SDL_haptic.h"

include/SDL_config.h.cmake

@@ -182,6 +182,7 @@
 #cmakedefine SDL_TIMERS_DISABLED @SDL_TIMERS_DISABLED@
 #cmakedefine SDL_VIDEO_DISABLED @SDL_VIDEO_DISABLED@
 #cmakedefine SDL_POWER_DISABLED @SDL_POWER_DISABLED@
+#cmakedefine SDL_FILESYSTEM_DISABLED @SDL_FILESYSTEM_DISABLED@
 
 /* Enable various audio drivers */
 #cmakedefine SDL_AUDIO_DRIVER_ALSA @SDL_AUDIO_DRIVER_ALSA@
@@ -301,6 +302,13 @@
 #cmakedefine SDL_POWER_BEOS @SDL_POWER_BEOS@
 #cmakedefine SDL_POWER_HARDWIRED @SDL_POWER_HARDWIRED@
 
+/* Enable system filesystem support */
+#cmakedefine SDL_FILESYSTEM_BEOS @SDL_FILESYSTEM_BEOS@
+#cmakedefine SDL_FILESYSTEM_COCOA @SDL_FILESYSTEM_COCOA@
+#cmakedefine SDL_FILESYSTEM_DUMMY @SDL_FILESYSTEM_DUMMY@
+#cmakedefine SDL_FILESYSTEM_UNIX @SDL_FILESYSTEM_UNIX@
+#cmakedefine SDL_FILESYSTEM_WINDOWS @SDL_FILESYSTEM_WINDOWS@
+
 /* Enable assembly routines */
 #cmakedefine SDL_ASSEMBLY_ROUTINES @SDL_ASSEMBLY_ROUTINES@
 #cmakedefine SDL_ALTIVEC_BLITTERS @SDL_ALTIVEC_BLITTERS@

include/SDL_config.h.in

@@ -184,6 +184,7 @@
 #undef SDL_TIMERS_DISABLED
 #undef SDL_VIDEO_DISABLED
 #undef SDL_POWER_DISABLED
+#undef SDL_FILESYSTEM_DISABLED
 
 /* Enable various audio drivers */
 #undef SDL_AUDIO_DRIVER_ALSA
@@ -303,6 +304,13 @@
 #undef SDL_POWER_BEOS
 #undef SDL_POWER_HARDWIRED
 
+/* Enable system filesystem support */
+#undef SDL_FILESYSTEM_BEOS
+#undef SDL_FILESYSTEM_COCOA
+#undef SDL_FILESYSTEM_DUMMY
+#undef SDL_FILESYSTEM_UNIX
+#undef SDL_FILESYSTEM_WINDOWS
+
 /* Enable assembly routines */
 #undef SDL_ASSEMBLY_ROUTINES
 #undef SDL_ALTIVEC_BLITTERS

include/SDL_config_android.h

@@ -136,4 +136,7 @@
 /* Enable system power support */
 #define SDL_POWER_ANDROID 1
 
+/* !!! FIXME: what does Android do for filesystem stuff? */
+#define SDL_FILESYSTEM_DUMMY   1
+
 #endif /* _SDL_config_android_h */

include/SDL_config_iphoneos.h

@@ -148,4 +148,7 @@
  */
 #define SDL_IPHONE_MAX_GFORCE 5.0
 
+/* enable filesystem support */
+#define SDL_FILESYSTEM_COCOA   1
+
 #endif /* _SDL_config_iphoneos_h */

include/SDL_config_macosx.h

@@ -171,6 +171,9 @@
 /* Enable system power support */
 #define SDL_POWER_MACOSX 1
 
+/* enable filesystem support */
+#define SDL_FILESYSTEM_COCOA   1
+
 /* Enable assembly routines */
 #define SDL_ASSEMBLY_ROUTINES   1
 #ifdef __ppc__

include/SDL_config_minimal.h

@@ -75,4 +75,7 @@ typedef unsigned long uintptr_t;
 /* Enable the dummy video driver (src/video/dummy/\*.c) */
 #define SDL_VIDEO_DRIVER_DUMMY  1
 
+/* Enable the dummy filesystem driver (src/filesystem/dummy/\*.c) */
+#define SDL_FILESYSTEM_DUMMY  1
+
 #endif /* _SDL_config_minimal_h */

include/SDL_config_pandora.h

@@ -114,6 +114,7 @@
 #define SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP 1
 
 #define SDL_TIMER_UNIX 1
+#define SDL_FILESYSTEM_UNIX 1
 
 #define SDL_VIDEO_DRIVER_DUMMY 1
 #define SDL_VIDEO_DRIVER_X11 1

include/SDL_config_psp.h

@@ -126,6 +126,9 @@
 
 #define SDL_POWER_PSP          1
 
+/* !!! FIXME: what does PSP do for filesystem stuff? */
+#define SDL_FILESYSTEM_DUMMY   1
+
 /* PSP doesn't have haptic device (src/haptic/dummy/\*.c) */
 #define SDL_HAPTIC_DISABLED    1
 

include/SDL_config_windows.h

@@ -181,6 +181,9 @@ typedef unsigned int uintptr_t;
 /* Enable system power support */
 #define SDL_POWER_WINDOWS 1
 
+/* Enable filesystem support */
+#define SDL_FILESYSTEM_WINDOWS  1
+
 /* Enable assembly routines (Win64 doesn't have inline asm) */
 #ifndef _WIN64
 #define SDL_ASSEMBLY_ROUTINES   1

include/SDL_filesystem.h

@@ -0,0 +1,136 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2013 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.
+*/
+
+/**
+ *  \file SDL_filesystem.h
+ *
+ *  \brief Include file for filesystem SDL API functions
+ */
+
+#ifndef _SDL_filesystem_h
+#define _SDL_filesystem_h
+
+#include "SDL_stdinc.h"
+
+#include "begin_code.h"
+
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Get the path where the application resides.
+ *
+ * Get the "base path". This is the directory where the application was run
+ *  from, which is probably the installation directory, and may or may not
+ *  be the process's current working directory.
+ *
+ * This returns an absolute path in UTF-8 encoding, and is guaranteed to
+ *  end with a path separator ('\\' on Windows, '/' most other places).
+ *
+ * The pointer returned by this function is owned by you. Please call
+ *  SDL_free() on the pointer when you are done with it, or it will be a
+ *  memory leak. This is not necessarily a fast call, though, so you should
+ *  call this once near startup and save the string if you need it.
+ *
+ * Some platforms can't determine the application's path, and on other
+ *  platforms, this might be meaningless. In such cases, this function will
+ *  return NULL.
+ *
+ *  \return String of base dir in UTF-8 encoding, or NULL on error.
+ *
+ * \sa SDL_GetPrefPath
+ */
+extern DECLSPEC char *SDLCALL SDL_GetBasePath(void);
+
+/**
+ * \brief Get the user-and-app-specific path where files can be written.
+ *
+ * Get the "pref dir". This is meant to be where users can write personal
+ *  files (preferences and save games, etc) that are specific to your
+ *  application. This directory is unique per user, per application.
+ *
+ * This function will decide the appropriate location in the native filesystem,
+ *  create the directory if necessary, and return a string of the absolute
+ *  path to the directory in UTF-8 encoding.
+ *
+ * On Windows, the string might look like:
+ *  "C:\\Users\\bob\\AppData\\Roaming\\My Company\\My Program Name"
+ *
+ * On Linux, the string might look like:
+ *  "/home/bob/.local/share/My Program Name"
+ *
+ * On Mac OS X, the string might look like:
+ *  "/Users/bob/Library/Application Support/My Program Name"
+ *
+ * (etc.)
+ *
+ * You specify the name of your organization (if it's not a real organization,
+ *  your name or an Internet domain you own might do) and the name of your
+ *  application. These should be untranslated proper names.
+ *
+ * Both the org and app strings may become part of a directory name, so
+ *  please follow these rules:
+ *
+ *    - Try to use the same org string (including case-sensitivity) for
+ *      all your applications that use this function.
+ *    - Always use a unique app string for each one, and make sure it never
+ *      changes for an app once you've decided on it.
+ *    - Unicode characters are legal, as long as it's UTF-8 encoded, but...
+ *    - ...only use letters, numbers, and spaces. Avoid punctuation like
+ *      "Game Name 2: Bad Guy's Revenge!" ... "Game Name 2" is sufficient.
+ *
+ * This returns an absolute path in UTF-8 encoding, and is guaranteed to
+ *  end with a path separator ('\\' on Windows, '/' most other places).
+ *
+ * The pointer returned by this function is owned by you. Please call
+ *  SDL_free() on the pointer when you are done with it, or it will be a
+ *  memory leak. This is not necessarily a fast call, though, so you should
+ *  call this once near startup and save the string if you need it.
+ *
+ * You should assume the path returned by this function is the only safe
+ *  place to write files (and that SDL_GetBasePath(), while it might be
+ *  writable, or even the parent of the returned path, aren't where you
+ *  should be writing things).
+ *
+ * Some platforms can't determine the pref path, and on other
+ *  platforms, this might be meaningless. In such cases, this function will
+ *  return NULL.
+ *
+ *   \param org The name of your organization.
+ *   \param app The name of your application.
+ *  \return UTF-8 string of user dir in platform-dependent notation. NULL
+ *          if there's a problem (creating directory failed, etc).
+ *
+ * \sa SDL_GetBasePath
+ */
+extern DECLSPEC char *SDLCALL SDL_GetPrefPath(const char *org, const char *app);
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+}
+#endif
+#include "close_code.h"
+
+#endif /* _SDL_system_h */
+
+/* vi: set ts=4 sw=4 expandtab: */