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Add SDL_ReadS8 and SDL_WriteS8

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Anonymous Maarten 2024-06-12 00:39:36 +02:00 • committed by Anonymous Maarten
parent 96bb06d9c7
commit ef6123886e
5 changed files with 49 additions and 0 deletions
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24
include/SDL3/SDL_iostream.h
View file

@ -625,6 +625,18 @@ extern SDL_DECLSPEC void *SDLCALL SDL_LoadFile(const char *file, size_t *datasiz
*/
extern SDL_DECLSPEC SDL_bool SDLCALL SDL_ReadU8(SDL_IOStream *src, Uint8 *value);
/**
* Use this function to read a signed byte from an SDL_IOStream.
*
* \param src the SDL_IOStream to read from
* \param value a pointer filled in with the data read
* \returns SDL_TRUE on success or SDL_FALSE on failure; call SDL_GetError()
* for more information.
*
* \since This function is available since SDL 3.0.0.
*/
extern SDL_DECLSPEC SDL_bool SDLCALL SDL_ReadS8(SDL_IOStream *src, Sint8 *value);
/**
* Use this function to read 16 bits of little-endian data from an
* SDL_IOStream and return in native format.
@ -837,6 +849,18 @@ extern SDL_DECLSPEC SDL_bool SDLCALL SDL_ReadS64BE(SDL_IOStream *src, Sint64 *va
*/
extern SDL_DECLSPEC SDL_bool SDLCALL SDL_WriteU8(SDL_IOStream *dst, Uint8 value);
/**
* Use this function to write a signed byte to an SDL_IOStream.
*
* \param dst the SDL_IOStream to write to
* \param value the byte value to write
* \returns SDL_TRUE on successful write, SDL_FALSE on failure; call
* SDL_GetError() for more information.
*
* \since This function is available since SDL 3.0.0.
*/
extern SDL_DECLSPEC SDL_bool SDLCALL SDL_WriteS8(SDL_IOStream *dst, Sint8 value);
/**
* Use this function to write 16 bits in native format to an SDL_IOStream as
* little-endian data.

2
src/dynapi/SDL_dynapi.sym
View file

@ -615,6 +615,7 @@ SDL3_0.0.0 {
SDL_ReadS32LE;
SDL_ReadS64BE;
SDL_ReadS64LE;
SDL_ReadS8;
SDL_ReadStorageFile;
SDL_ReadSurfacePixel;
SDL_ReadU16BE;
@ -849,6 +850,7 @@ SDL3_0.0.0 {
SDL_WriteS32LE;
SDL_WriteS64BE;
SDL_WriteS64LE;
SDL_WriteS8;
SDL_WriteStorageFile;
SDL_WriteU16BE;
SDL_WriteU16LE;

2
src/dynapi/SDL_dynapi_overrides.h
View file

@ -640,6 +640,7 @@
#define SDL_ReadS32LE SDL_ReadS32LE_REAL
#define SDL_ReadS64BE SDL_ReadS64BE_REAL
#define SDL_ReadS64LE SDL_ReadS64LE_REAL
#define SDL_ReadS8 SDL_ReadS8_REAL
#define SDL_ReadStorageFile SDL_ReadStorageFile_REAL
#define SDL_ReadSurfacePixel SDL_ReadSurfacePixel_REAL
#define SDL_ReadU16BE SDL_ReadU16BE_REAL
@ -874,6 +875,7 @@
#define SDL_WriteS32LE SDL_WriteS32LE_REAL
#define SDL_WriteS64BE SDL_WriteS64BE_REAL
#define SDL_WriteS64LE SDL_WriteS64LE_REAL
#define SDL_WriteS8 SDL_WriteS8_REAL
#define SDL_WriteStorageFile SDL_WriteStorageFile_REAL
#define SDL_WriteU16BE SDL_WriteU16BE_REAL
#define SDL_WriteU16LE SDL_WriteU16LE_REAL

2
src/dynapi/SDL_dynapi_procs.h
View file

@ -651,6 +651,7 @@ SDL_DYNAPI_PROC(SDL_bool,SDL_ReadS32BE,(SDL_IOStream *a, Sint32 *b),(a,b),return
SDL_DYNAPI_PROC(SDL_bool,SDL_ReadS32LE,(SDL_IOStream *a, Sint32 *b),(a,b),return)
SDL_DYNAPI_PROC(SDL_bool,SDL_ReadS64BE,(SDL_IOStream *a, Sint64 *b),(a,b),return)
SDL_DYNAPI_PROC(SDL_bool,SDL_ReadS64LE,(SDL_IOStream *a, Sint64 *b),(a,b),return)
SDL_DYNAPI_PROC(SDL_bool,SDL_ReadS8,(SDL_IOStream *a, Sint8 *b),(a,b),return)
SDL_DYNAPI_PROC(int,SDL_ReadStorageFile,(SDL_Storage *a, const char *b, void *c, Uint64 d),(a,b,c,d),return)
SDL_DYNAPI_PROC(int,SDL_ReadSurfacePixel,(SDL_Surface *a, int b, int c, Uint8 *d, Uint8 *e, Uint8 *f, Uint8 *g),(a,b,c,d,e,f,g),return)
SDL_DYNAPI_PROC(SDL_bool,SDL_ReadU16BE,(SDL_IOStream *a, Uint16 *b),(a,b),return)
@ -884,6 +885,7 @@ SDL_DYNAPI_PROC(SDL_bool,SDL_WriteS32BE,(SDL_IOStream *a, Sint32 b),(a,b),return
SDL_DYNAPI_PROC(SDL_bool,SDL_WriteS32LE,(SDL_IOStream *a, Sint32 b),(a,b),return)
SDL_DYNAPI_PROC(SDL_bool,SDL_WriteS64BE,(SDL_IOStream *a, Sint64 b),(a,b),return)
SDL_DYNAPI_PROC(SDL_bool,SDL_WriteS64LE,(SDL_IOStream *a, Sint64 b),(a,b),return)
SDL_DYNAPI_PROC(SDL_bool,SDL_WriteS8,(SDL_IOStream *a, Sint8 b),(a,b),return)
SDL_DYNAPI_PROC(int,SDL_WriteStorageFile,(SDL_Storage *a, const char *b, const void *c, Uint64 d),(a,b,c,d),return)
SDL_DYNAPI_PROC(SDL_bool,SDL_WriteU16BE,(SDL_IOStream *a, Uint16 b),(a,b),return)
SDL_DYNAPI_PROC(SDL_bool,SDL_WriteU16LE,(SDL_IOStream *a, Uint16 b),(a,b),return)

19
src/file/SDL_iostream.c
View file

@ -1117,6 +1117,20 @@ SDL_bool SDL_ReadU8(SDL_IOStream *src, Uint8 *value)
return result;
}
SDL_bool SDL_ReadS8(SDL_IOStream *src, Sint8 *value)
{
Sint8 data = 0;
SDL_bool result = SDL_FALSE;
if (SDL_ReadIO(src, &data, sizeof(data)) == sizeof(data)) {
result = SDL_TRUE;
}
if (value) {
*value = data;
}
return result;
}
SDL_bool SDL_ReadU16LE(SDL_IOStream *src, Uint16 *value)
{
Uint16 data = 0;
@ -1236,6 +1250,11 @@ SDL_bool SDL_WriteU8(SDL_IOStream *dst, Uint8 value)
return (SDL_WriteIO(dst, &value, sizeof(value)) == sizeof(value));
}
SDL_bool SDL_WriteS8(SDL_IOStream *dst, Sint8 value)
{
return (SDL_WriteIO(dst, &value, sizeof(value)) == sizeof(value));
}
SDL_bool SDL_WriteU16LE(SDL_IOStream *dst, Uint16 value)
{
const Uint16 swapped = SDL_SwapLE16(value);