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_RWops *	MGUI_RWFromFile (const char *file, const char *mode)
	Creates an MG_RWops object from a file. More...
MG_EXPORT MG_RWops *	MGUI_RWFromFP (FILE *fp, int autoclose)
	Creates an MG_RWops object from an opened stdio FILE object. More...
MG_EXPORT MG_RWops *	MGUI_RWFromMem (void *mem, size_t size)
	Creates an MG_RWops object from a block of memory. More...
MG_EXPORT void	MGUI_InitMemRW (MG_RWops *area, void *mem, size_t size)
	Initializes an MG_RWops object from a block of memory. More...
MG_EXPORT MG_RWops *	MGUI_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) 2002~2020, 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/blog/minigui-licensing-policy/>.

Definition in file endianrw.h.