Mercurial > almixer_isolated
annotate Isolated/ALmixer_RWops.h @ 70:7d63f5149d40
Enhanced endian detection code in SoundDecoder.h after reviewing ANDROID_NDK changes.
| author | Eric Wing <ewing . public |-at-| gmail . com> |
|---|---|
| date | Wed, 20 Jun 2012 10:41:06 -0700 |
| parents | 208a9ed20087 |
| children | 36644b1b940b |
| rev | line source |
|---|---|
| 38 | 1 #ifndef ALMIXER_RWOPS |
| 2 #define ALMIXER_RWOPS | |
| 3 | |
| 4 #if defined(_WIN32) | |
| 5 #if defined(ALMIXER_RWOPS_BUILD_LIBRARY) | |
| 6 #define ALMIXER_RWOPS_DECLSPEC __declspec(dllexport) | |
| 7 #else | |
| 8 #define ALMIXER_RWOPS_DECLSPEC __declspec(dllimport) | |
| 9 #endif | |
| 10 #else | |
| 11 #if defined(ALMIXER_RWOPS_BUILD_LIBRARY) | |
| 12 #if defined (__GNUC__) && __GNUC__ >= 4 | |
| 13 #define ALMIXER_RWOPS_DECLSPEC __attribute__((visibility("default"))) | |
| 14 #else | |
| 15 #define ALMIXER_RWOPS_DECLSPEC | |
| 16 #endif | |
| 17 #else | |
| 18 #define ALMIXER_RWOPS_DECLSPEC | |
| 19 #endif | |
| 20 #endif | |
| 21 | |
| 22 #if defined(_WIN32) | |
| 23 #define ALMIXER_RWOPS_CALL __cdecl | |
| 24 #else | |
| 25 #define ALMIXER_RWOPS_CALL | |
| 26 #endif | |
| 27 | |
| 28 #ifdef __cplusplus | |
| 29 extern "C" { | |
| 30 #endif | |
| 31 | |
| 32 /* Trying to keep compatibility with SDL_RWops, | |
| 33 * but I don't plan on reimplementing everything. | |
| 34 */ | |
| 35 #include <stdio.h> | |
| 36 #include <stddef.h> | |
| 37 /* The 'type' parameter needs to be 32-bits to match SDL_RWops. | |
| 38 * <stdint.h> has been problematic for Visual Studio for years. | |
| 39 * It appears that Visual Studio 2010 finally includes this. | |
| 40 */ | |
| 41 #include <stdint.h> | |
| 42 typedef struct ALmixer_RWops | |
| 43 { | |
| 44 /** Seek to 'offset' relative to whence, one of stdio's whence values: | |
| 45 * SEEK_SET, SEEK_CUR, SEEK_END | |
| 46 * Returns the final offset in the data source. | |
| 47 * (Note this is different than stdio's seek. This returns ftell.) | |
| 48 */ | |
|
56
208a9ed20087
Added explicit symbol visibility markers to audio support files in ALmixer for public headers so they can be built as a dynamic library if needed.
Eric Wing <ewing@anscamobile.com>
parents:
38
diff
changeset
|
49 long (ALMIXER_RWOPS_CALL *seek)(struct ALmixer_RWops* the_context, long offset, int whence); |
| 38 | 50 |
| 51 /** Read up to 'nitems' objects each of size 'size' from the data | |
| 52 * source to the area pointed at by 'ptr'. | |
| 53 * Returns the number of objects read, or -1 if the read failed. | |
| 54 */ | |
| 55 size_t (ALMIXER_RWOPS_CALL *read)(struct ALmixer_RWops* the_context, void* ptr, size_t size, size_t nitems); | |
| 56 | |
| 57 /** Write exactly 'nitems' objects each of size 'size' from the area | |
| 58 * pointed at by 'ptr' to data source. | |
| 59 * Returns 'num', or -1 if the write failed. | |
| 60 */ | |
| 61 size_t (ALMIXER_RWOPS_CALL *write)(struct ALmixer_RWops* the_context, const void* ptr, size_t size, size_t nitems); | |
| 62 | |
| 63 /** Close and free an allocated ALmixer_RWops structure */ | |
| 64 int (ALMIXER_RWOPS_CALL *close)(struct ALmixer_RWops* the_context); | |
| 65 | |
| 66 /* type Needs to be a 32-bit to be compatible with SDL */ | |
| 67 uint32_t type; | |
| 68 union | |
| 69 { | |
| 70 #if defined(__WIN32__) && !defined(__SYMBIAN32__) | |
| 71 /* Chances are that I will not implement this path. | |
| 72 * But I want the padding to be the same as SDL. | |
| 73 */ | |
| 74 struct | |
| 75 { | |
| 76 int append; | |
| 77 void *h; | |
| 78 struct | |
| 79 { | |
| 80 void *data; | |
|
56
208a9ed20087
Added explicit symbol visibility markers to audio support files in ALmixer for public headers so they can be built as a dynamic library if needed.
Eric Wing <ewing@anscamobile.com>
parents:
38
diff
changeset
|
81 size_t size; |
|
208a9ed20087
Added explicit symbol visibility markers to audio support files in ALmixer for public headers so they can be built as a dynamic library if needed.
Eric Wing <ewing@anscamobile.com>
parents:
38
diff
changeset
|
82 size_t left; |
| 38 | 83 } buffer; |
| 84 } win32io; | |
| 85 #endif | |
| 86 struct | |
| 87 { | |
| 88 int autoclose; | |
| 89 FILE* fp; | |
| 90 } stdio; | |
| 91 struct | |
| 92 { | |
| 93 unsigned char* base; | |
| 94 unsigned char* here; | |
| 95 unsigned char* stop; | |
| 96 } mem; | |
| 97 struct | |
| 98 { | |
| 99 void* data1; | |
| 100 } unknown; | |
| 101 } hidden; | |
| 102 } ALmixer_RWops; | |
| 103 | |
| 104 extern ALMIXER_RWOPS_DECLSPEC ALmixer_RWops* ALMIXER_RWOPS_CALL ALmixer_RWFromFile(const char* file_name, const char* file_mode); | |
| 105 extern ALMIXER_RWOPS_DECLSPEC ALmixer_RWops* ALMIXER_RWOPS_CALL ALmixer_RWFromFP(FILE* file_pointer, char autoclose_flag); | |
| 106 | |
| 107 #define ALmixer_RWseek(rwops, offset, whence) (rwops)->seek(rwops, offset, whence) | |
| 108 #define ALmixer_RWtell(rwops) (rwops)->seek(rwops, 0, SEEK_CUR) | |
| 109 #define ALmixer_RWread(rwops, ptr, size, nitems) (rwops)->read(rwops, ptr, size, nitems) | |
| 110 | |
| 111 /* Ends C function definitions when using C++ */ | |
| 112 #ifdef __cplusplus | |
| 113 } | |
| 114 #endif | |
| 115 | |
| 116 #endif | |
| 117 |