src/file/SDL_rwops.c
author Ryan C. Gordon <icculus@icculus.org>
Sat, 15 Sep 2012 10:59:39 -0400
changeset 6430 48d519500f7e
parent 6375 93f9a24d1c02
child 6629 8e2c731103e6
child 8316 88f011703f39
permissions -rwxr-xr-x
Removed Windows CE support from SDL 2.0.

It's a long-dead platform, and we don't have any way to build for, test, or
maintain it, so there's no sense in doing acrobatics to support it.

If you need Windows CE support, use SDL 1.2. If you need Windows Phone support,
send SDL 2.0 patches for the newer Windows Mobile platform.
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_config.h"
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/* This file provides a general interface for SDL to read and write
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   data sources.  It can easily be extended to files, memory, etc.
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*/
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#include "SDL_endian.h"
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#include "SDL_rwops.h"
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#ifdef __APPLE__
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#include "cocoa/SDL_rwopsbundlesupport.h"
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#endif /* __APPLE__ */
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#ifdef ANDROID
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#include "../core/android/SDL_android.h"
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#endif
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#ifdef __NDS__
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/* include libfat headers for fatInitDefault(). */
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#include <fat.h>
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#endif /* __NDS__ */
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#ifdef __WIN32__
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/* Functions to read/write Win32 API file pointers */
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#include "../core/windows/SDL_windows.h"
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#ifndef INVALID_SET_FILE_POINTER
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#define INVALID_SET_FILE_POINTER 0xFFFFFFFF
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#endif
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#define READAHEAD_BUFFER_SIZE	1024
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static int SDLCALL
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windows_file_open(SDL_RWops * context, const char *filename, const char *mode)
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{
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    UINT old_error_mode;
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    HANDLE h;
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    DWORD r_right, w_right;
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    DWORD must_exist, truncate;
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    int a_mode;
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    if (!context)
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        return -1;              /* failed (invalid call) */
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    context->hidden.windowsio.h = INVALID_HANDLE_VALUE;   /* mark this as unusable */
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    context->hidden.windowsio.buffer.data = NULL;
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    context->hidden.windowsio.buffer.size = 0;
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    context->hidden.windowsio.buffer.left = 0;
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    /* "r" = reading, file must exist */
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    /* "w" = writing, truncate existing, file may not exist */
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    /* "r+"= reading or writing, file must exist            */
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    /* "a" = writing, append file may not exist             */
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    /* "a+"= append + read, file may not exist              */
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    /* "w+" = read, write, truncate. file may not exist    */
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    must_exist = (SDL_strchr(mode, 'r') != NULL) ? OPEN_EXISTING : 0;
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    truncate = (SDL_strchr(mode, 'w') != NULL) ? CREATE_ALWAYS : 0;
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    r_right = (SDL_strchr(mode, '+') != NULL
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               || must_exist) ? GENERIC_READ : 0;
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    a_mode = (SDL_strchr(mode, 'a') != NULL) ? OPEN_ALWAYS : 0;
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    w_right = (a_mode || SDL_strchr(mode, '+')
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               || truncate) ? GENERIC_WRITE : 0;
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    if (!r_right && !w_right)   /* inconsistent mode */
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        return -1;              /* failed (invalid call) */
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    context->hidden.windowsio.buffer.data =
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        (char *) SDL_malloc(READAHEAD_BUFFER_SIZE);
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    if (!context->hidden.windowsio.buffer.data) {
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        SDL_OutOfMemory();
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        return -1;
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    }
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    /* Do not open a dialog box if failure */
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    old_error_mode =
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        SetErrorMode(SEM_NOOPENFILEERRORBOX | SEM_FAILCRITICALERRORS);
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    {
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        LPTSTR tstr = WIN_UTF8ToString(filename);
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        h = CreateFile(tstr, (w_right | r_right),
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                       (w_right) ? 0 : FILE_SHARE_READ, NULL,
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                       (must_exist | truncate | a_mode),
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                       FILE_ATTRIBUTE_NORMAL, NULL);
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        SDL_free(tstr);
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    }
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    /* restore old behavior */
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    SetErrorMode(old_error_mode);
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    if (h == INVALID_HANDLE_VALUE) {
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        SDL_free(context->hidden.windowsio.buffer.data);
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        context->hidden.windowsio.buffer.data = NULL;
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        SDL_SetError("Couldn't open %s", filename);
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        return -2;              /* failed (CreateFile) */
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    }
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    context->hidden.windowsio.h = h;
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    context->hidden.windowsio.append = a_mode ? SDL_TRUE : SDL_FALSE;
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    return 0;                   /* ok */
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}
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static long SDLCALL
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windows_file_seek(SDL_RWops * context, long offset, int whence)
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{
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    DWORD windowswhence;
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    long file_pos;
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    if (!context || context->hidden.windowsio.h == INVALID_HANDLE_VALUE) {
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        SDL_SetError("windows_file_seek: invalid context/file not opened");
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        return -1;
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    }
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    /* FIXME: We may be able to satisfy the seek within buffered data */
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    if (whence == RW_SEEK_CUR && context->hidden.windowsio.buffer.left) {
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        offset -= (long)context->hidden.windowsio.buffer.left;
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    }
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    context->hidden.windowsio.buffer.left = 0;
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    switch (whence) {
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    case RW_SEEK_SET:
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        windowswhence = FILE_BEGIN;
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        break;
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    case RW_SEEK_CUR:
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        windowswhence = FILE_CURRENT;
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        break;
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    case RW_SEEK_END:
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        windowswhence = FILE_END;
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        break;
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    default:
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        SDL_SetError("windows_file_seek: Unknown value for 'whence'");
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        return -1;
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    }
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    file_pos =
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        SetFilePointer(context->hidden.windowsio.h, offset, NULL, windowswhence);
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    if (file_pos != INVALID_SET_FILE_POINTER)
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        return file_pos;        /* success */
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    SDL_Error(SDL_EFSEEK);
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    return -1;                  /* error */
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}
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static size_t SDLCALL
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windows_file_read(SDL_RWops * context, void *ptr, size_t size, size_t maxnum)
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{
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    size_t total_need;
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    size_t total_read = 0;
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    size_t read_ahead;
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    DWORD byte_read;
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    total_need = size * maxnum;
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    if (!context || context->hidden.windowsio.h == INVALID_HANDLE_VALUE
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        || !total_need)
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        return 0;
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    if (context->hidden.windowsio.buffer.left > 0) {
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        void *data = (char *) context->hidden.windowsio.buffer.data +
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            context->hidden.windowsio.buffer.size -
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            context->hidden.windowsio.buffer.left;
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        read_ahead =
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            SDL_min(total_need, context->hidden.windowsio.buffer.left);
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        SDL_memcpy(ptr, data, read_ahead);
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        context->hidden.windowsio.buffer.left -= read_ahead;
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        if (read_ahead == total_need) {
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            return maxnum;
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        }
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        ptr = (char *) ptr + read_ahead;
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        total_need -= read_ahead;
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        total_read += read_ahead;
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    }
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    if (total_need < READAHEAD_BUFFER_SIZE) {
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        if (!ReadFile
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            (context->hidden.windowsio.h, context->hidden.windowsio.buffer.data,
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             READAHEAD_BUFFER_SIZE, &byte_read, NULL)) {
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            SDL_Error(SDL_EFREAD);
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            return 0;
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        }
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        read_ahead = SDL_min(total_need, (int) byte_read);
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        SDL_memcpy(ptr, context->hidden.windowsio.buffer.data, read_ahead);
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        context->hidden.windowsio.buffer.size = byte_read;
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        context->hidden.windowsio.buffer.left = byte_read - read_ahead;
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        total_read += read_ahead;
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    } else {
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        if (!ReadFile
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            (context->hidden.windowsio.h, ptr, (DWORD)total_need, &byte_read, NULL)) {
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            SDL_Error(SDL_EFREAD);
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            return 0;
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        }
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        total_read += byte_read;
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    }
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    return (total_read / size);
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}
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static size_t SDLCALL
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windows_file_write(SDL_RWops * context, const void *ptr, size_t size,
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                 size_t num)
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{
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    size_t total_bytes;
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    DWORD byte_written;
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    size_t nwritten;
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    total_bytes = size * num;
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    if (!context || context->hidden.windowsio.h == INVALID_HANDLE_VALUE
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        || total_bytes <= 0 || !size)
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        return 0;
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    if (context->hidden.windowsio.buffer.left) {
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        SetFilePointer(context->hidden.windowsio.h,
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                       -(LONG)context->hidden.windowsio.buffer.left, NULL,
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                       FILE_CURRENT);
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        context->hidden.windowsio.buffer.left = 0;
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    }
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    /* if in append mode, we must go to the EOF before write */
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    if (context->hidden.windowsio.append) {
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        if (SetFilePointer(context->hidden.windowsio.h, 0L, NULL, FILE_END) ==
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            INVALID_SET_FILE_POINTER) {
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            SDL_Error(SDL_EFWRITE);
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            return 0;
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        }
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    }
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    if (!WriteFile
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        (context->hidden.windowsio.h, ptr, (DWORD)total_bytes, &byte_written, NULL)) {
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        SDL_Error(SDL_EFWRITE);
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        return 0;
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    }
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    nwritten = byte_written / size;
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    return nwritten;
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}
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static int SDLCALL
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windows_file_close(SDL_RWops * context)
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{
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    if (context) {
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        if (context->hidden.windowsio.h != INVALID_HANDLE_VALUE) {
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            CloseHandle(context->hidden.windowsio.h);
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            context->hidden.windowsio.h = INVALID_HANDLE_VALUE;   /* to be sure */
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        }
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        if (context->hidden.windowsio.buffer.data) {
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            SDL_free(context->hidden.windowsio.buffer.data);
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            context->hidden.windowsio.buffer.data = NULL;
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        }
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        SDL_FreeRW(context);
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    }
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    return (0);
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}
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#endif /* __WIN32__ */
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#ifdef HAVE_STDIO_H
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/* Functions to read/write stdio file pointers */
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static long SDLCALL
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stdio_seek(SDL_RWops * context, long offset, int whence)
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{
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    if (fseek(context->hidden.stdio.fp, offset, whence) == 0) {
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        return (ftell(context->hidden.stdio.fp));
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    } else {
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        SDL_Error(SDL_EFSEEK);
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        return (-1);
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    }
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}
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static size_t SDLCALL
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stdio_read(SDL_RWops * context, void *ptr, size_t size, size_t maxnum)
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{
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    size_t nread;
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    nread = fread(ptr, size, maxnum, context->hidden.stdio.fp);
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    if (nread == 0 && ferror(context->hidden.stdio.fp)) {
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        SDL_Error(SDL_EFREAD);
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    }
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    return (nread);
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}
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static size_t SDLCALL
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stdio_write(SDL_RWops * context, const void *ptr, size_t size, size_t num)
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{
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    size_t nwrote;
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    nwrote = fwrite(ptr, size, num, context->hidden.stdio.fp);
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    if (nwrote == 0 && ferror(context->hidden.stdio.fp)) {
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        SDL_Error(SDL_EFWRITE);
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    }
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    return (nwrote);
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}
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static int SDLCALL
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stdio_close(SDL_RWops * context)
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{
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    int status = 0;
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    if (context) {
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        if (context->hidden.stdio.autoclose) {
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            /* WARNING:  Check the return value here! */
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            if (fclose(context->hidden.stdio.fp) != 0) {
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                SDL_Error(SDL_EFWRITE);
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                status = -1;
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            }
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        }
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        SDL_FreeRW(context);
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    }
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    return status;
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}
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#endif /* !HAVE_STDIO_H */
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/* Functions to read/write memory pointers */
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static long SDLCALL
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mem_seek(SDL_RWops * context, long offset, int whence)
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{
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    Uint8 *newpos;
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    switch (whence) {
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    case RW_SEEK_SET:
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        newpos = context->hidden.mem.base + offset;
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        break;
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    case RW_SEEK_CUR:
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        newpos = context->hidden.mem.here + offset;
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        break;
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    case RW_SEEK_END:
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        newpos = context->hidden.mem.stop + offset;
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        break;
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   354
    default:
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   355
        SDL_SetError("Unknown value for 'whence'");
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        return (-1);
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   357
    }
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   358
    if (newpos < context->hidden.mem.base) {
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   359
        newpos = context->hidden.mem.base;
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   360
    }
slouken@1895
   361
    if (newpos > context->hidden.mem.stop) {
slouken@1895
   362
        newpos = context->hidden.mem.stop;
slouken@1895
   363
    }
slouken@1895
   364
    context->hidden.mem.here = newpos;
slouken@3253
   365
    return (long)(context->hidden.mem.here - context->hidden.mem.base);
slouken@0
   366
}
slouken@2735
   367
slouken@2160
   368
static size_t SDLCALL
slouken@2160
   369
mem_read(SDL_RWops * context, void *ptr, size_t size, size_t maxnum)
slouken@0
   370
{
slouken@1895
   371
    size_t total_bytes;
slouken@1895
   372
    size_t mem_available;
slouken@0
   373
slouken@1895
   374
    total_bytes = (maxnum * size);
slouken@1895
   375
    if ((maxnum <= 0) || (size <= 0)
slouken@1895
   376
        || ((total_bytes / maxnum) != (size_t) size)) {
slouken@1895
   377
        return 0;
slouken@1895
   378
    }
icculus@1078
   379
slouken@1895
   380
    mem_available = (context->hidden.mem.stop - context->hidden.mem.here);
slouken@1895
   381
    if (total_bytes > mem_available) {
slouken@1895
   382
        total_bytes = mem_available;
slouken@1895
   383
    }
icculus@1078
   384
slouken@1895
   385
    SDL_memcpy(ptr, context->hidden.mem.here, total_bytes);
slouken@1895
   386
    context->hidden.mem.here += total_bytes;
icculus@1078
   387
slouken@1895
   388
    return (total_bytes / size);
slouken@0
   389
}
slouken@2735
   390
slouken@2160
   391
static size_t SDLCALL
slouken@2160
   392
mem_write(SDL_RWops * context, const void *ptr, size_t size, size_t num)
slouken@0
   393
{
slouken@1895
   394
    if ((context->hidden.mem.here + (num * size)) > context->hidden.mem.stop) {
slouken@1895
   395
        num = (context->hidden.mem.stop - context->hidden.mem.here) / size;
slouken@1895
   396
    }
slouken@1895
   397
    SDL_memcpy(context->hidden.mem.here, ptr, num * size);
slouken@1895
   398
    context->hidden.mem.here += num * size;
slouken@1895
   399
    return (num);
slouken@0
   400
}
slouken@2735
   401
slouken@2160
   402
static size_t SDLCALL
slouken@2160
   403
mem_writeconst(SDL_RWops * context, const void *ptr, size_t size, size_t num)
slouken@764
   404
{
slouken@1895
   405
    SDL_SetError("Can't write to read-only memory");
slouken@1895
   406
    return (-1);
slouken@764
   407
}
slouken@2735
   408
slouken@1895
   409
static int SDLCALL
slouken@1895
   410
mem_close(SDL_RWops * context)
slouken@0
   411
{
slouken@1895
   412
    if (context) {
slouken@1895
   413
        SDL_FreeRW(context);
slouken@1895
   414
    }
slouken@1895
   415
    return (0);
slouken@0
   416
}
slouken@0
   417
slouken@1447
   418
slouken@0
   419
/* Functions to create SDL_RWops structures from various data sources */
slouken@0
   420
slouken@1895
   421
SDL_RWops *
slouken@1895
   422
SDL_RWFromFile(const char *file, const char *mode)
slouken@0
   423
{
slouken@1895
   424
    SDL_RWops *rwops = NULL;
slouken@1895
   425
    if (!file || !*file || !mode || !*mode) {
slouken@1895
   426
        SDL_SetError("SDL_RWFromFile(): No file or no mode specified");
slouken@1895
   427
        return NULL;
slouken@1895
   428
    }
icculus@5582
   429
#if defined(ANDROID)
icculus@5582
   430
    rwops = SDL_AllocRW();
icculus@5582
   431
    if (!rwops)
icculus@5582
   432
        return NULL;            /* SDL_SetError already setup by SDL_AllocRW() */
icculus@5582
   433
    if (Android_JNI_FileOpen(rwops, file, mode) < 0) {
icculus@5582
   434
        SDL_FreeRW(rwops);
icculus@5582
   435
        return NULL;
icculus@5582
   436
    }
icculus@5582
   437
    rwops->seek = Android_JNI_FileSeek;
icculus@5582
   438
    rwops->read = Android_JNI_FileRead;
icculus@5582
   439
    rwops->write = Android_JNI_FileWrite;
icculus@5582
   440
    rwops->close = Android_JNI_FileClose;
icculus@5582
   441
icculus@5582
   442
#elif defined(__WIN32__)
slouken@1895
   443
    rwops = SDL_AllocRW();
slouken@1895
   444
    if (!rwops)
slouken@1895
   445
        return NULL;            /* SDL_SetError already setup by SDL_AllocRW() */
slouken@5062
   446
    if (windows_file_open(rwops, file, mode) < 0) {
slouken@1895
   447
        SDL_FreeRW(rwops);
slouken@1895
   448
        return NULL;
slouken@1895
   449
    }
slouken@5062
   450
    rwops->seek = windows_file_seek;
slouken@5062
   451
    rwops->read = windows_file_read;
slouken@5062
   452
    rwops->write = windows_file_write;
slouken@5062
   453
    rwops->close = windows_file_close;
slouken@1447
   454
slouken@1447
   455
#elif HAVE_STDIO_H
icculus@6375
   456
    {
icculus@6375
   457
    	#ifdef __APPLE__
icculus@6375
   458
    	FILE *fp = SDL_OpenFPFromBundleOrFallback(file, mode);
icculus@6375
   459
        #else
icculus@6375
   460
    	FILE *fp = fopen(file, mode);
icculus@6375
   461
    	#endif
icculus@6375
   462
    	if (fp == NULL) {
icculus@6375
   463
            SDL_SetError("Couldn't open %s", file);
icculus@6375
   464
        } else {
icculus@6375
   465
            rwops = SDL_RWFromFP(fp, 1);
icculus@6375
   466
        }
slouken@1895
   467
    }
slouken@0
   468
#else
slouken@1895
   469
    SDL_SetError("SDL not compiled with stdio support");
slouken@1446
   470
#endif /* !HAVE_STDIO_H */
slouken@1447
   471
slouken@1895
   472
    return (rwops);
slouken@0
   473
}
slouken@0
   474
slouken@1330
   475
#ifdef HAVE_STDIO_H
slouken@1895
   476
SDL_RWops *
slouken@2161
   477
SDL_RWFromFP(FILE * fp, SDL_bool autoclose)
slouken@0
   478
{
slouken@1895
   479
    SDL_RWops *rwops = NULL;
slouken@0
   480
slouken@2735
   481
#if 0
slouken@2735
   482
/*#ifdef __NDS__*/
slouken@2735
   483
    /* set it up so we can use stdio file function */
slouken@2735
   484
    fatInitDefault();
slouken@2735
   485
    printf("called fatInitDefault()");
slouken@2735
   486
#endif /* __NDS__ */
slouken@2735
   487
slouken@1895
   488
    rwops = SDL_AllocRW();
slouken@1895
   489
    if (rwops != NULL) {
slouken@1895
   490
        rwops->seek = stdio_seek;
slouken@1895
   491
        rwops->read = stdio_read;
slouken@1895
   492
        rwops->write = stdio_write;
slouken@1895
   493
        rwops->close = stdio_close;
slouken@1895
   494
        rwops->hidden.stdio.fp = fp;
slouken@1895
   495
        rwops->hidden.stdio.autoclose = autoclose;
slouken@1895
   496
    }
slouken@1895
   497
    return (rwops);
slouken@0
   498
}
slouken@3564
   499
#else
slouken@3564
   500
SDL_RWops *
slouken@3564
   501
SDL_RWFromFP(void * fp, SDL_bool autoclose)
slouken@3564
   502
{
slouken@3564
   503
    SDL_SetError("SDL not compiled with stdio support");
slouken@3564
   504
    return NULL;
slouken@3564
   505
}
slouken@1330
   506
#endif /* HAVE_STDIO_H */
slouken@0
   507
slouken@1895
   508
SDL_RWops *
slouken@1895
   509
SDL_RWFromMem(void *mem, int size)
slouken@0
   510
{
slouken@1895
   511
    SDL_RWops *rwops;
slouken@0
   512
slouken@1895
   513
    rwops = SDL_AllocRW();
slouken@1895
   514
    if (rwops != NULL) {
slouken@1895
   515
        rwops->seek = mem_seek;
slouken@1895
   516
        rwops->read = mem_read;
slouken@1895
   517
        rwops->write = mem_write;
slouken@1895
   518
        rwops->close = mem_close;
slouken@1895
   519
        rwops->hidden.mem.base = (Uint8 *) mem;
slouken@1895
   520
        rwops->hidden.mem.here = rwops->hidden.mem.base;
slouken@1895
   521
        rwops->hidden.mem.stop = rwops->hidden.mem.base + size;
slouken@1895
   522
    }
slouken@1895
   523
    return (rwops);
slouken@0
   524
}
slouken@0
   525
slouken@1895
   526
SDL_RWops *
slouken@1895
   527
SDL_RWFromConstMem(const void *mem, int size)
slouken@764
   528
{
slouken@1895
   529
    SDL_RWops *rwops;
slouken@764
   530
slouken@1895
   531
    rwops = SDL_AllocRW();
slouken@1895
   532
    if (rwops != NULL) {
slouken@1895
   533
        rwops->seek = mem_seek;
slouken@1895
   534
        rwops->read = mem_read;
slouken@1895
   535
        rwops->write = mem_writeconst;
slouken@1895
   536
        rwops->close = mem_close;
slouken@1895
   537
        rwops->hidden.mem.base = (Uint8 *) mem;
slouken@1895
   538
        rwops->hidden.mem.here = rwops->hidden.mem.base;
slouken@1895
   539
        rwops->hidden.mem.stop = rwops->hidden.mem.base + size;
slouken@1895
   540
    }
slouken@1895
   541
    return (rwops);
slouken@764
   542
}
slouken@764
   543
slouken@1895
   544
SDL_RWops *
slouken@1895
   545
SDL_AllocRW(void)
slouken@0
   546
{
slouken@1895
   547
    SDL_RWops *area;
slouken@0
   548
slouken@1895
   549
    area = (SDL_RWops *) SDL_malloc(sizeof *area);
slouken@1895
   550
    if (area == NULL) {
slouken@1895
   551
        SDL_OutOfMemory();
slouken@1895
   552
    }
slouken@1895
   553
    return (area);
slouken@0
   554
}
slouken@0
   555
slouken@1895
   556
void
slouken@1895
   557
SDL_FreeRW(SDL_RWops * area)
slouken@0
   558
{
slouken@1895
   559
    SDL_free(area);
slouken@0
   560
}
slouken@1354
   561
slouken@1354
   562
/* Functions for dynamically reading and writing endian-specific values */
slouken@1354
   563
slouken@1895
   564
Uint16
slouken@1895
   565
SDL_ReadLE16(SDL_RWops * src)
slouken@1354
   566
{
slouken@1895
   567
    Uint16 value;
slouken@1354
   568
slouken@1895
   569
    SDL_RWread(src, &value, (sizeof value), 1);
slouken@1895
   570
    return (SDL_SwapLE16(value));
slouken@1354
   571
}
slouken@1354
   572
slouken@1895
   573
Uint16
slouken@1895
   574
SDL_ReadBE16(SDL_RWops * src)
slouken@1354
   575
{
slouken@1895
   576
    Uint16 value;
slouken@1895
   577
slouken@1895
   578
    SDL_RWread(src, &value, (sizeof value), 1);
slouken@1895
   579
    return (SDL_SwapBE16(value));
slouken@1354
   580
}
slouken@1895
   581
slouken@1895
   582
Uint32
slouken@1895
   583
SDL_ReadLE32(SDL_RWops * src)
slouken@1354
   584
{
slouken@1895
   585
    Uint32 value;
slouken@1895
   586
slouken@1895
   587
    SDL_RWread(src, &value, (sizeof value), 1);
slouken@1895
   588
    return (SDL_SwapLE32(value));
slouken@1354
   589
}
slouken@1895
   590
slouken@1895
   591
Uint32
slouken@1895
   592
SDL_ReadBE32(SDL_RWops * src)
slouken@1354
   593
{
slouken@1895
   594
    Uint32 value;
slouken@1895
   595
slouken@1895
   596
    SDL_RWread(src, &value, (sizeof value), 1);
slouken@1895
   597
    return (SDL_SwapBE32(value));
slouken@1354
   598
}
slouken@1895
   599
slouken@1895
   600
Uint64
slouken@1895
   601
SDL_ReadLE64(SDL_RWops * src)
slouken@1354
   602
{
slouken@1895
   603
    Uint64 value;
slouken@1895
   604
slouken@1895
   605
    SDL_RWread(src, &value, (sizeof value), 1);
slouken@1895
   606
    return (SDL_SwapLE64(value));
slouken@1354
   607
}
slouken@1895
   608
slouken@1895
   609
Uint64
slouken@1895
   610
SDL_ReadBE64(SDL_RWops * src)
slouken@1354
   611
{
slouken@1895
   612
    Uint64 value;
slouken@1895
   613
slouken@1895
   614
    SDL_RWread(src, &value, (sizeof value), 1);
slouken@1895
   615
    return (SDL_SwapBE64(value));
slouken@1354
   616
}
slouken@1895
   617
slouken@3253
   618
size_t
slouken@1895
   619
SDL_WriteLE16(SDL_RWops * dst, Uint16 value)
slouken@1354
   620
{
slouken@1895
   621
    value = SDL_SwapLE16(value);
slouken@1895
   622
    return (SDL_RWwrite(dst, &value, (sizeof value), 1));
slouken@1354
   623
}
slouken@1895
   624
slouken@3253
   625
size_t
slouken@1895
   626
SDL_WriteBE16(SDL_RWops * dst, Uint16 value)
slouken@1895
   627
{
slouken@1895
   628
    value = SDL_SwapBE16(value);
slouken@1895
   629
    return (SDL_RWwrite(dst, &value, (sizeof value), 1));
slouken@1895
   630
}
slouken@1895
   631
slouken@3253
   632
size_t
slouken@1895
   633
SDL_WriteLE32(SDL_RWops * dst, Uint32 value)
slouken@1895
   634
{
slouken@1895
   635
    value = SDL_SwapLE32(value);
slouken@1895
   636
    return (SDL_RWwrite(dst, &value, (sizeof value), 1));
slouken@1895
   637
}
slouken@1895
   638
slouken@3253
   639
size_t
slouken@1895
   640
SDL_WriteBE32(SDL_RWops * dst, Uint32 value)
slouken@1895
   641
{
slouken@1895
   642
    value = SDL_SwapBE32(value);
slouken@1895
   643
    return (SDL_RWwrite(dst, &value, (sizeof value), 1));
slouken@1895
   644
}
slouken@1895
   645
slouken@3253
   646
size_t
slouken@1895
   647
SDL_WriteLE64(SDL_RWops * dst, Uint64 value)
slouken@1895
   648
{
slouken@1895
   649
    value = SDL_SwapLE64(value);
slouken@1895
   650
    return (SDL_RWwrite(dst, &value, (sizeof value), 1));
slouken@1895
   651
}
slouken@1895
   652
slouken@3253
   653
size_t
slouken@1895
   654
SDL_WriteBE64(SDL_RWops * dst, Uint64 value)
slouken@1895
   655
{
slouken@1895
   656
    value = SDL_SwapBE64(value);
slouken@1895
   657
    return (SDL_RWwrite(dst, &value, (sizeof value), 1));
slouken@1895
   658
}
slouken@1895
   659
slouken@1895
   660
/* vi: set ts=4 sw=4 expandtab: */