--- a/misc/physfs/extras/physfsrwops.c Wed Feb 20 02:21:58 2013 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,219 +0,0 @@
-/*
- * This code provides a glue layer between PhysicsFS and Simple Directmedia
- * Layer's (SDL) RWops i/o abstraction.
- *
- * License: this code is public domain. I make no warranty that it is useful,
- * correct, harmless, or environmentally safe.
- *
- * This particular file may be used however you like, including copying it
- * verbatim into a closed-source project, exploiting it commercially, and
- * removing any trace of my name from the source (although I hope you won't
- * do that). I welcome enhancements and corrections to this file, but I do
- * not require you to send me patches if you make changes. This code has
- * NO WARRANTY.
- *
- * Unless otherwise stated, the rest of PhysicsFS falls under the zlib license.
- * Please see LICENSE.txt in the root of the source tree.
- *
- * SDL 1.2 falls under the LGPL license. SDL 1.3+ is zlib, like PhysicsFS.
- * You can get SDL at http://www.libsdl.org/
- *
- * This file was written by Ryan C. Gordon. (icculus@icculus.org).
- */
-
-#include <stdio.h> /* used for SEEK_SET, SEEK_CUR, SEEK_END ... */
-#include "physfsrwops.h"
-
-/* SDL's RWOPS interface changed a little in SDL 1.3... */
-#if defined(SDL_VERSION_ATLEAST)
-#if SDL_VERSION_ATLEAST(1, 3, 0)
-#define TARGET_SDL13 1
-#endif
-#endif
-
-#if TARGET_SDL13
-static long SDLCALL physfsrwops_seek(struct SDL_RWops *rw, long offset, int whence)
-#else
-static int physfsrwops_seek(SDL_RWops *rw, int offset, int whence)
-#endif
-{
- PHYSFS_File *handle = (PHYSFS_File *) rw->hidden.unknown.data1;
- PHYSFS_sint64 pos = 0;
-
- if (whence == SEEK_SET)
- pos = (PHYSFS_sint64) offset;
-
- else if (whence == SEEK_CUR)
- {
- const PHYSFS_sint64 current = PHYSFS_tell(handle);
- if (current == -1)
- {
- SDL_SetError("Can't find position in file: %s",
- PHYSFS_getLastError());
- return -1;
- } /* if */
-
- if (offset == 0) /* this is a "tell" call. We're done. */
- {
- #if TARGET_SDL13
- return (long) current;
- #else
- return (int) current;
- #endif
- } /* if */
-
- pos = current + ((PHYSFS_sint64) offset);
- } /* else if */
-
- else if (whence == SEEK_END)
- {
- const PHYSFS_sint64 len = PHYSFS_fileLength(handle);
- if (len == -1)
- {
- SDL_SetError("Can't find end of file: %s", PHYSFS_getLastError());
- return -1;
- } /* if */
-
- pos = len + ((PHYSFS_sint64) offset);
- } /* else if */
-
- else
- {
- SDL_SetError("Invalid 'whence' parameter.");
- return -1;
- } /* else */
-
- if ( pos < 0 )
- {
- SDL_SetError("Attempt to seek past start of file.");
- return -1;
- } /* if */
-
- if (!PHYSFS_seek(handle, (PHYSFS_uint64) pos))
- {
- SDL_SetError("PhysicsFS error: %s", PHYSFS_getLastError());
- return -1;
- } /* if */
-
- #if TARGET_SDL13
- return (long) pos;
- #else
- return (int) pos;
- #endif
-} /* physfsrwops_seek */
-
-
-#if TARGET_SDL13
-static size_t SDLCALL physfsrwops_read(struct SDL_RWops *rw, void *ptr,
- size_t size, size_t maxnum)
-#else
-static int physfsrwops_read(SDL_RWops *rw, void *ptr, int size, int maxnum)
-#endif
-{
- PHYSFS_File *handle = (PHYSFS_File *) rw->hidden.unknown.data1;
- const PHYSFS_uint64 readlen = (PHYSFS_uint64) (maxnum * size);
- const PHYSFS_sint64 rc = PHYSFS_readBytes(handle, ptr, readlen);
- if (rc != ((PHYSFS_sint64) readlen))
- {
- if (!PHYSFS_eof(handle)) /* not EOF? Must be an error. */
- SDL_SetError("PhysicsFS error: %s", PHYSFS_getLastError());
- } /* if */
-
- #if TARGET_SDL13
- return (size_t) rc;
- #else
- return (int) rc;
- #endif
-} /* physfsrwops_read */
-
-
-#if TARGET_SDL13
-static size_t SDLCALL physfsrwops_write(struct SDL_RWops *rw, const void *ptr,
- size_t size, size_t num)
-#else
-static int physfsrwops_write(SDL_RWops *rw, const void *ptr, int size, int num)
-#endif
-{
- PHYSFS_File *handle = (PHYSFS_File *) rw->hidden.unknown.data1;
- const PHYSFS_uint64 writelen = (PHYSFS_uint64) (num * size);
- const PHYSFS_sint64 rc = PHYSFS_writeBytes(handle, ptr, writelen);
- if (rc != ((PHYSFS_sint64) writelen))
- SDL_SetError("PhysicsFS error: %s", PHYSFS_getLastError());
-
- #if TARGET_SDL13
- return (size_t) rc;
- #else
- return (int) rc;
- #endif
-} /* physfsrwops_write */
-
-
-static int physfsrwops_close(SDL_RWops *rw)
-{
- PHYSFS_File *handle = (PHYSFS_File *) rw->hidden.unknown.data1;
- if (!PHYSFS_close(handle))
- {
- SDL_SetError("PhysicsFS error: %s", PHYSFS_getLastError());
- return -1;
- } /* if */
-
- SDL_FreeRW(rw);
- return 0;
-} /* physfsrwops_close */
-
-
-static SDL_RWops *create_rwops(PHYSFS_File *handle)
-{
- SDL_RWops *retval = NULL;
-
- if (handle == NULL)
- SDL_SetError("PhysicsFS error: %s", PHYSFS_getLastError());
- else
- {
- retval = SDL_AllocRW();
- if (retval != NULL)
- {
- retval->seek = physfsrwops_seek;
- retval->read = physfsrwops_read;
- retval->write = physfsrwops_write;
- retval->close = physfsrwops_close;
- retval->hidden.unknown.data1 = handle;
- } /* if */
- } /* else */
-
- return retval;
-} /* create_rwops */
-
-
-SDL_RWops *PHYSFSRWOPS_makeRWops(PHYSFS_File *handle)
-{
- SDL_RWops *retval = NULL;
- if (handle == NULL)
- SDL_SetError("NULL pointer passed to PHYSFSRWOPS_makeRWops().");
- else
- retval = create_rwops(handle);
-
- return retval;
-} /* PHYSFSRWOPS_makeRWops */
-
-
-SDL_RWops *PHYSFSRWOPS_openRead(const char *fname)
-{
- return create_rwops(PHYSFS_openRead(fname));
-} /* PHYSFSRWOPS_openRead */
-
-
-SDL_RWops *PHYSFSRWOPS_openWrite(const char *fname)
-{
- return create_rwops(PHYSFS_openWrite(fname));
-} /* PHYSFSRWOPS_openWrite */
-
-
-SDL_RWops *PHYSFSRWOPS_openAppend(const char *fname)
-{
- return create_rwops(PHYSFS_openAppend(fname));
-} /* PHYSFSRWOPS_openAppend */
-
-
-/* end of physfsrwops.c ... */
-