MiniGUI API Reference (MiniGUI-Processes)  v3.2.0
A mature and proven cross-platform GUI system for embedded and smart IoT devices
Data Structures | Macros | Typedefs | Functions
endianrw.h File Reference

This file includes functions for reading and writing data from general sources, such as file, memory, etc., and also includes functions for reading and writing endian-specific values. More...

Go to the source code of this file.

Data Structures

struct  _MG_RWops
 

Macros

#define MGUI_RWseek(ctx, offset, whence)   (ctx)->seek(ctx, offset, whence)
 Seeks an MG_RWops object. More...
 
#define MGUI_RWtell(ctx)   (ctx)->seek(ctx, 0, SEEK_CUR)
 Obtains the current value of the position indicator for a data source. More...
 
#define MGUI_RWread(ctx, ptr, size, n)   (ctx)->read(ctx, ptr, size, n)
 Reads data blocks from a data source. More...
 
#define MGUI_RWwrite(ctx, ptr, size, n)   (ctx)->write(ctx, ptr, size, n)
 Writes data blocks to a data source. More...
 
#define MGUI_RWclose(ctx)   (ctx)->close(ctx)
 Closes an MG_RWops object. More...
 
#define MGUI_RWeof(ctx)   (ctx)->eof(ctx)
 Tests the end-of-file indicator for an data source. More...
 
#define ArchSwapLE16(X)   (X)
 
#define ArchSwapLE32(X)   (X)
 
#define ArchSwapLE64(X)   (X)
 
#define ArchSwapBE16(X)   ArchSwap16(X)
 
#define ArchSwapBE32(X)   ArchSwap32(X)
 
#define ArchSwapBE64(X)   ArchSwap64(X)
 

Typedefs

typedef struct _MG_RWops MG_RWops
 

Functions

MG_EXPORT MG_RWopsMGUI_RWFromFile (const char *file, const char *mode)
 Creates an MG_RWops object from a file. More...
 
MG_EXPORT MG_RWopsMGUI_RWFromFP (FILE *fp, int autoclose)
 Creates an MG_RWops object from an opened stdio FILE object. More...
 
MG_EXPORT MG_RWopsMGUI_RWFromMem (void *mem, int size)
 Creates an MG_RWops object from a block of memory. More...
 
MG_EXPORT void MGUI_InitMemRW (MG_RWops *area, void *mem, int size)
 Initializes an MG_RWops object from a block of memory. More...
 
MG_EXPORT MG_RWopsMGUI_AllocRW (void)
 Allocates an uninitialized MG_RWops object. More...
 
MG_EXPORT void MGUI_FreeRW (MG_RWops *area)
 Frees an MG_RWops object. More...
 
MG_EXPORT int MGUI_RWgetc (MG_RWops *area)
 Reads the next character from an data source. More...
 
Uint16 MGUI_ReadLE16 (MG_RWops *src)
 Reads a 16-bit little endian integer from a MG_RWops object. More...
 
Uint16 MGUI_ReadBE16 (MG_RWops *src)
 Reads a 16-bit big endian integer from a MG_RWops object. More...
 
Uint32 MGUI_ReadLE32 (MG_RWops *src)
 Reads a 32-bit little endian integer from a MG_RWops object. More...
 
Uint32 MGUI_ReadBE32 (MG_RWops *src)
 Reads a 32-bit big endian integer from a MG_RWops object. More...
 
Uint64 MGUI_ReadLE64 (MG_RWops *src)
 Reads a 64-bit little endian integer from a MG_RWops object. More...
 
Uint64 MGUI_ReadBE64 (MG_RWops *src)
 Reads a 64-bit big endian integer from a MG_RWops object. More...
 
int MGUI_WriteLE16 (MG_RWops *dst, Uint16 value)
 Writes an 16-bit integer of native format to a MG_RWops object in littlen endianness. More...
 
int MGUI_WriteBE16 (MG_RWops *dst, Uint16 value)
 Writes an 16-bit integer of native format to a MG_RWops object in big endianness. More...
 
int MGUI_WriteLE32 (MG_RWops *dst, Uint32 value)
 Writes an 32-bit integer of native format to a MG_RWops object in littlen endianness. More...
 
int MGUI_WriteBE32 (MG_RWops *dst, Uint32 value)
 Writes an 32-bit integer of native format to a MG_RWops object in big endianness. More...
 
int MGUI_WriteLE64 (MG_RWops *dst, Uint64 value)
 Writes an 64-bit integer of native format to a MG_RWops object in littlen endianness. More...
 
int MGUI_WriteBE64 (MG_RWops *dst, Uint64 value)
 Writes an 64-bit integer of native format to a MG_RWops object in big endianness. More...
 
Uint16 MGUI_ReadLE16FP (FILE *src)
 Reads a 16-bit little endian integer from a stdio FILE object. More...
 
Uint32 MGUI_ReadLE32FP (FILE *src)
 Reads a 32-bit little endian integer from a stdio FILE object. More...
 
int MGUI_WriteLE16FP (FILE *dst, Uint16 value)
 Writes an 16-bit integer of native format to a stdio FILE object in littlen endianness. More...
 
int MGUI_WriteLE32FP (FILE *dst, Uint32 value)
 Writes an 32-bit integer of native format to a stdio FILE object in littlen endianness. More...
 

Detailed Description

This file includes functions for reading and writing data from general sources, such as file, memory, etc., and also includes functions for reading and writing endian-specific values.

Author
Wei Yongming vince.nosp@m.nt@m.nosp@m.inigu.nosp@m.i.or.nosp@m.g
Date
2002/01/06
   This file is part of MiniGUI, a mature cross-platform windowing 
   and Graphics User Interface (GUI) support system for embedded systems
   and smart IoT devices.

   Copyright (C) 2002~2018, Beijing FMSoft Technologies Co., Ltd.
   Copyright (C) 1998~2002, WEI Yongming

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.

   Or,

   As this program is a library, any link to this program must follow
   GNU General Public License version 3 (GPLv3). If you cannot accept
   GPLv3, you need to be licensed from FMSoft.

   If you have got a commercial license of this program, please use it
   under the terms and conditions of the commercial license.

   For more information about the commercial license, please refer to
   <http://www.minigui.com/en/about/licensing-policy/>.

Definition in file endianrw.h.