Updated SDL2
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@@ -1,6 +1,6 @@
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
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Copyright (C) 1997-2020 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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@@ -26,8 +26,8 @@
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* data streams. It can easily be extended to files, memory, etc.
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*/
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#ifndef _SDL_rwops_h
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#define _SDL_rwops_h
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#ifndef SDL_rwops_h_
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#define SDL_rwops_h_
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#include "SDL_stdinc.h"
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#include "SDL_error.h"
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@@ -39,12 +39,12 @@ extern "C" {
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#endif
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/* RWops Types */
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#define SDL_RWOPS_UNKNOWN 0 /* Unknown stream type */
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#define SDL_RWOPS_WINFILE 1 /* Win32 file */
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#define SDL_RWOPS_STDFILE 2 /* Stdio file */
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#define SDL_RWOPS_JNIFILE 3 /* Android asset */
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#define SDL_RWOPS_MEMORY 4 /* Memory stream */
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#define SDL_RWOPS_MEMORY_RO 5 /* Read-Only memory stream */
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#define SDL_RWOPS_UNKNOWN 0U /**< Unknown stream type */
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#define SDL_RWOPS_WINFILE 1U /**< Win32 file */
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#define SDL_RWOPS_STDFILE 2U /**< Stdio file */
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#define SDL_RWOPS_JNIFILE 3U /**< Android asset */
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#define SDL_RWOPS_MEMORY 4U /**< Memory stream */
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#define SDL_RWOPS_MEMORY_RO 5U /**< Read-Only memory stream */
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/**
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* This is the read/write operation structure -- very basic.
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@@ -93,7 +93,7 @@ typedef struct SDL_RWops
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Uint32 type;
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union
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{
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#if defined(ANDROID)
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#if defined(__ANDROID__)
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struct
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{
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void *fileNameRef;
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@@ -148,7 +148,7 @@ typedef struct SDL_RWops
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*
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* Functions to create SDL_RWops structures from various data streams.
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*/
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/*@{*/
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/* @{ */
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extern DECLSPEC SDL_RWops *SDLCALL SDL_RWFromFile(const char *file,
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const char *mode);
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@@ -165,7 +165,7 @@ extern DECLSPEC SDL_RWops *SDLCALL SDL_RWFromMem(void *mem, int size);
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extern DECLSPEC SDL_RWops *SDLCALL SDL_RWFromConstMem(const void *mem,
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int size);
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/*@}*//*RWFrom functions*/
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/* @} *//* RWFrom functions */
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extern DECLSPEC SDL_RWops *SDLCALL SDL_AllocRW(void);
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@@ -176,26 +176,86 @@ extern DECLSPEC void SDLCALL SDL_FreeRW(SDL_RWops * area);
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#define RW_SEEK_END 2 /**< Seek relative to the end of data */
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/**
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* \name Read/write macros
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*
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* Macros to easily read and write from an SDL_RWops structure.
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* Return the size of the file in this rwops, or -1 if unknown
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*/
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/*@{*/
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#define SDL_RWsize(ctx) (ctx)->size(ctx)
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#define SDL_RWseek(ctx, offset, whence) (ctx)->seek(ctx, offset, whence)
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#define SDL_RWtell(ctx) (ctx)->seek(ctx, 0, RW_SEEK_CUR)
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#define SDL_RWread(ctx, ptr, size, n) (ctx)->read(ctx, ptr, size, n)
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#define SDL_RWwrite(ctx, ptr, size, n) (ctx)->write(ctx, ptr, size, n)
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#define SDL_RWclose(ctx) (ctx)->close(ctx)
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/*@}*//*Read/write macros*/
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extern DECLSPEC Sint64 SDLCALL SDL_RWsize(SDL_RWops *context);
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/**
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* Seek to \c offset relative to \c whence, one of stdio's whence values:
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* RW_SEEK_SET, RW_SEEK_CUR, RW_SEEK_END
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*
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* \return the final offset in the data stream, or -1 on error.
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*/
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extern DECLSPEC Sint64 SDLCALL SDL_RWseek(SDL_RWops *context,
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Sint64 offset, int whence);
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/**
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* Return the current offset in the data stream, or -1 on error.
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*/
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extern DECLSPEC Sint64 SDLCALL SDL_RWtell(SDL_RWops *context);
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/**
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* Read up to \c maxnum objects each of size \c size from the data
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* stream to the area pointed at by \c ptr.
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*
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* \return the number of objects read, or 0 at error or end of file.
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*/
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extern DECLSPEC size_t SDLCALL SDL_RWread(SDL_RWops *context,
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void *ptr, size_t size, size_t maxnum);
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/**
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* Write exactly \c num objects each of size \c size from the area
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* pointed at by \c ptr to data stream.
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*
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* \return the number of objects written, or 0 at error or end of file.
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*/
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extern DECLSPEC size_t SDLCALL SDL_RWwrite(SDL_RWops *context,
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const void *ptr, size_t size, size_t num);
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/**
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* Close and free an allocated SDL_RWops structure.
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*
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* \return 0 if successful or -1 on write error when flushing data.
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*/
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extern DECLSPEC int SDLCALL SDL_RWclose(SDL_RWops *context);
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/**
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* Load all the data from an SDL data stream.
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*
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* The data is allocated with a zero byte at the end (null terminated)
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*
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* If \c datasize is not NULL, it is filled with the size of the data read.
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*
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* If \c freesrc is non-zero, the stream will be closed after being read.
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*
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* The data should be freed with SDL_free().
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*
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* \return the data, or NULL if there was an error.
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*/
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extern DECLSPEC void *SDLCALL SDL_LoadFile_RW(SDL_RWops * src, size_t *datasize,
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int freesrc);
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/**
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* Load an entire file.
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*
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* The data is allocated with a zero byte at the end (null terminated)
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*
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* If \c datasize is not NULL, it is filled with the size of the data read.
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*
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* If \c freesrc is non-zero, the stream will be closed after being read.
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*
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* The data should be freed with SDL_free().
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*
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* \return the data, or NULL if there was an error.
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*/
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extern DECLSPEC void *SDLCALL SDL_LoadFile(const char *file, size_t *datasize);
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/**
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* \name Read endian functions
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*
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* Read an item of the specified endianness and return in native format.
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*/
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/*@{*/
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/* @{ */
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extern DECLSPEC Uint8 SDLCALL SDL_ReadU8(SDL_RWops * src);
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extern DECLSPEC Uint16 SDLCALL SDL_ReadLE16(SDL_RWops * src);
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extern DECLSPEC Uint16 SDLCALL SDL_ReadBE16(SDL_RWops * src);
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@@ -203,14 +263,14 @@ extern DECLSPEC Uint32 SDLCALL SDL_ReadLE32(SDL_RWops * src);
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extern DECLSPEC Uint32 SDLCALL SDL_ReadBE32(SDL_RWops * src);
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extern DECLSPEC Uint64 SDLCALL SDL_ReadLE64(SDL_RWops * src);
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extern DECLSPEC Uint64 SDLCALL SDL_ReadBE64(SDL_RWops * src);
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/*@}*//*Read endian functions*/
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/* @} *//* Read endian functions */
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/**
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* \name Write endian functions
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*
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* Write an item of native format to the specified endianness.
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*/
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/*@{*/
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/* @{ */
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extern DECLSPEC size_t SDLCALL SDL_WriteU8(SDL_RWops * dst, Uint8 value);
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extern DECLSPEC size_t SDLCALL SDL_WriteLE16(SDL_RWops * dst, Uint16 value);
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extern DECLSPEC size_t SDLCALL SDL_WriteBE16(SDL_RWops * dst, Uint16 value);
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@@ -218,8 +278,7 @@ extern DECLSPEC size_t SDLCALL SDL_WriteLE32(SDL_RWops * dst, Uint32 value);
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extern DECLSPEC size_t SDLCALL SDL_WriteBE32(SDL_RWops * dst, Uint32 value);
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extern DECLSPEC size_t SDLCALL SDL_WriteLE64(SDL_RWops * dst, Uint64 value);
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extern DECLSPEC size_t SDLCALL SDL_WriteBE64(SDL_RWops * dst, Uint64 value);
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/*@}*//*Write endian functions*/
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/* @} *//* Write endian functions */
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/* Ends C function definitions when using C++ */
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#ifdef __cplusplus
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@@ -227,6 +286,6 @@ extern DECLSPEC size_t SDLCALL SDL_WriteBE64(SDL_RWops * dst, Uint64 value);
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#endif
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#include "close_code.h"
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#endif /* _SDL_rwops_h */
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#endif /* SDL_rwops_h_ */
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/* vi: set ts=4 sw=4 expandtab: */
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