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comparison include/SDL_rwops.h @ 1330:450721ad5436

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It's now possible to build SDL without any C runtime at all on Windows, using Visual C++ 2005
author Sam Lantinga <slouken@libsdl.org>
date Mon, 06 Feb 2006 08:28:51 +0000
parents c9b51268668f
children 22f39393668a
comparison
equal deleted inserted replaced
1329:bc67bbf87818 1330:450721ad5436
25 */ 25 */
26 26
27 #ifndef _SDL_RWops_h 27 #ifndef _SDL_RWops_h
28 #define _SDL_RWops_h 28 #define _SDL_RWops_h
29 29
30 #include "SDL_config.h"
31
32 #ifdef HAVE_STDIO_H
30 #include <stdio.h> 33 #include <stdio.h>
34 #endif
31 35
32 #include "SDL_types.h" 36 #include "SDL_types.h"
33 37
34 #include "begin_code.h" 38 #include "begin_code.h"
35 /* Set up for C function definitions, even when using C++ */ 39 /* Set up for C function definitions, even when using C++ */
61 /* Close and free an allocated SDL_FSops structure */ 65 /* Close and free an allocated SDL_FSops structure */
62 int (SDLCALL *close)(struct SDL_RWops *context); 66 int (SDLCALL *close)(struct SDL_RWops *context);
63 67
64 Uint32 type; 68 Uint32 type;
65 union { 69 union {
70 #ifdef HAVE_STDIO_H
66 struct { 71 struct {
67 int autoclose; 72 int autoclose;
68 FILE *fp; 73 FILE *fp;
69 } stdio; 74 } stdio;
75 #endif
70 struct { 76 struct {
71 Uint8 *base; 77 Uint8 *base;
72 Uint8 *here; 78 Uint8 *here;
73 Uint8 *stop; 79 Uint8 *stop;
74 } mem; 80 } mem;
82 88
83 /* Functions to create SDL_RWops structures from various data sources */ 89 /* Functions to create SDL_RWops structures from various data sources */
84 90
85 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromFile(const char *file, const char *mode); 91 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromFile(const char *file, const char *mode);
86 92
93 #ifdef HAVE_STDIO_H
87 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromFP(FILE *fp, int autoclose); 94 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromFP(FILE *fp, int autoclose);
95 #endif
88 96
89 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromMem(void *mem, int size); 97 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromMem(void *mem, int size);
90 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromConstMem(const void *mem, int size); 98 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromConstMem(const void *mem, int size);
91 99
92 extern DECLSPEC SDL_RWops * SDLCALL SDL_AllocRW(void); 100 extern DECLSPEC SDL_RWops * SDLCALL SDL_AllocRW(void);
93 extern DECLSPEC void SDLCALL SDL_FreeRW(SDL_RWops *area); 101 extern DECLSPEC void SDLCALL SDL_FreeRW(SDL_RWops *area);
94 102
103 #define RW_SEEK_SET 0 /* Seek from the beginning of data */
104 #define RW_SEEK_CUR 1 /* Seek relative to current read point */
105 #define RW_SEEK_END 2 /* Seek relative to the end of data */
106
95 /* Macros to easily read and write from an SDL_RWops structure */ 107 /* Macros to easily read and write from an SDL_RWops structure */
96 #define SDL_RWseek(ctx, offset, whence) (ctx)->seek(ctx, offset, whence) 108 #define SDL_RWseek(ctx, offset, whence) (ctx)->seek(ctx, offset, whence)
97 #define SDL_RWtell(ctx) (ctx)->seek(ctx, 0, SEEK_CUR) 109 #define SDL_RWtell(ctx) (ctx)->seek(ctx, 0, RW_SEEK_CUR)
98 #define SDL_RWread(ctx, ptr, size, n) (ctx)->read(ctx, ptr, size, n) 110 #define SDL_RWread(ctx, ptr, size, n) (ctx)->read(ctx, ptr, size, n)
99 #define SDL_RWwrite(ctx, ptr, size, n) (ctx)->write(ctx, ptr, size, n) 111 #define SDL_RWwrite(ctx, ptr, size, n) (ctx)->write(ctx, ptr, size, n)
100 #define SDL_RWclose(ctx) (ctx)->close(ctx) 112 #define SDL_RWclose(ctx) (ctx)->close(ctx)
101 113
102 114