Mercurial > hg > dmlib
annotate dmres.h @ 722:ad3965b93ef1
Merge.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Sun, 21 Apr 2013 16:42:35 +0300 |
| parents | bb14d7907eb2 eb4bd1f7b679 |
| children | 867fc7f205a8 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * DMLib | |
| 3 * -- Resource management | |
| 4 * Programmed and designed by Matti 'ccr' Hamalainen | |
| 5 * (C) Copyright 2011-2012 Tecnic Software productions (TNSP) | |
| 6 */ | |
| 7 #ifndef DMRES_H | |
| 8 #define DMRES_H | |
| 9 | |
| 10 #include "dmlib.h" | |
| 11 | |
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12 #ifdef DM_USE_PACKFS |
| 0 | 13 #include "dmpack.h" |
| 14 #endif | |
| 15 | |
| 16 #ifdef __cplusplus | |
| 17 extern "C" { | |
| 18 #endif | |
| 19 | |
| 20 | |
| 21 /* Constants | |
| 22 */ | |
| 23 enum | |
| 24 { | |
| 25 DMPRUNE_ATIME = 0x0001, | |
| 26 DMPRUNE_MTIME = 0x0002, | |
| 27 }; | |
| 28 | |
| 29 enum | |
| 30 { | |
| 31 DRF_USE_PACK = 0x0001, | |
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32 DRF_USE_STDIO = 0x0002, |
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33 DRF_PRELOAD_RAW = 0x0004, |
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34 DRF_PRELOAD_RES = 0x0008, |
| 0 | 35 }; |
| 36 | |
| 37 enum | |
| 38 { | |
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39 DMF_PERSIST = 0x0001, // Persist loaded RAW resource |
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40 DMF_LOADED_RAW = 0x1000, // Raw data has been loaded |
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41 DMF_LOADED_RES = 0x2000, // Resource has been loaded |
| 0 | 42 }; |
| 43 | |
| 44 | |
| 45 /* Typedefs and structures | |
| 46 */ | |
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47 struct DMResourceLib; |
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48 struct DMResourceDataOps; |
| 0 | 49 struct DMResourceOps; |
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50 struct DMResource; |
| 0 | 51 |
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52 typedef struct DMResource |
| 0 | 53 { |
| 54 // Timestamps (in seconds from time()) | |
| 55 int mtime, // When resource was loaded | |
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56 atime; // Last accessed (dmResourceRef()/unref) |
| 0 | 57 int refcount; // Reference count |
| 58 | |
| 59 int flags; // Resource flags (DMF_*) | |
| 60 char *filename; | |
| 61 | |
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62 // Raw data (or mem data) |
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63 size_t rawSize; // Size of data |
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64 off_t rawOffset; // Current offset in data |
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65 Uint8 *rawData; // Pointer to data |
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66 |
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67 // Decoded resource data |
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68 void *resData; |
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69 size_t resSize; |
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70 struct DMResourceDataOps *rops; |
| 0 | 71 |
| 72 int error; // Error code | |
| 73 | |
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74 #ifdef DM_USE_STDIO |
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75 FILE * fh; // File handle for stdio |
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76 #endif |
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77 |
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78 struct DMResourceOps *fops; // Pointer to file handling functions struct |
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79 struct DMResourceLib *lib; // Pointer to the resource library |
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80 struct DMResource *next, *prev; |
| 0 | 81 } DMResource; |
| 82 | |
| 83 | |
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84 typedef struct DMResourceDataOps |
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85 { |
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86 BOOL (*probe)(DMResource *res, const char *fext); |
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87 int (*load)(DMResource *res); |
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88 void (*free)(DMResource *res); |
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89 } DMResourceDataOps; |
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90 |
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91 |
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92 typedef struct DMResourceLib |
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93 { |
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94 int flags; |
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95 char *resPath; |
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96 |
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97 DMResource *resources, *preload; |
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98 DMMutex *mutex; |
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99 |
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100 #ifdef DM_USE_PACKFS |
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101 char *packFilename; |
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102 DMPackFile *packFile; |
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103 #endif |
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104 } DMResourceLib; |
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105 |
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106 |
| 0 | 107 typedef struct DMResourceOps |
| 108 { | |
| 109 int (*ferror)(DMResource *); | |
| 110 int (*fseek)(DMResource *, const off_t, const int); | |
| 111 off_t (*fsize)(DMResource *); | |
| 112 off_t (*ftell)(DMResource *); | |
| 113 BOOL (*feof)(DMResource *); | |
| 114 int (*fgetc)(DMResource *); | |
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115 int (*fputc)(int, DMResource *); |
| 0 | 116 size_t (*fread)(void *, const size_t, const size_t, DMResource *); |
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117 size_t (*fwrite)(void *, const size_t, const size_t, DMResource *); |
| 0 | 118 |
| 119 int (*fopen)(DMResource *); | |
| 120 void (*fclose)(DMResource *); | |
| 121 int (*preload)(DMResource *); | |
| 122 } DMResourceOps; | |
| 123 | |
| 124 | |
| 125 /* Functions | |
| 126 */ | |
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127 int dmResourcesInit(DMResourceLib **lib, const char *filename, const char *path, const int flags, int (*classifier)(DMResource *)); |
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128 int dmResourcesClose(DMResourceLib *lib); |
| 0 | 129 |
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130 void dmResourcesPrune(DMResourceLib *lib, const int agems, int const flags); |
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131 int dmResourcesPreload(DMResourceLib *lib, BOOL start, int *loaded, int *total); |
| 0 | 132 |
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133 DMResource * dmResourceNew(DMResourceLib *lib, const char *filename, const size_t size); |
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134 void dmResourceFree(DMResource *node); |
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135 void dmResourceInsert(DMResourceLib *lib, DMResource * node); |
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136 void dmResourceDelete(DMResourceLib *lib, DMResource * node); |
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137 DMResource * dmResourceFind(DMResourceLib *lib, const char *filename); |
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138 int dmResourceRef(DMResource *); |
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139 int dmResourceUnref(DMResource *); |
| 0 | 140 |
| 141 | |
| 142 // Opening and closing resources | |
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143 DMResource * dmf_open(DMResourceLib *lib, const char *); |
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144 DMResource * dmf_create_memio(DMResourceLib *lib, const char *, Uint8 *buf, size_t len); |
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145 #ifdef DM_USE_STDIO |
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146 DMResource * dmf_create_stdio(const char *filename, const char *mode); |
| 0 | 147 DMResource * dmf_create_stdio_stream(FILE *); |
| 148 #endif | |
| 149 void dmf_close(DMResource *); | |
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150 int dmf_preload(DMResource *); |
| 0 | 151 |
| 152 | |
| 153 // Basic resource access functions | |
| 154 int dmferror(DMResource *); | |
| 155 int dmfseek(DMResource *, const off_t, const int); | |
| 156 off_t dmfsize(DMResource *); | |
| 157 off_t dmftell(DMResource *); | |
| 158 BOOL dmfeof(DMResource *); | |
| 159 int dmfgetc(DMResource *); | |
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160 int dmfputc(int, DMResource *); |
| 0 | 161 size_t dmfread(void *, const size_t, const size_t, DMResource *); |
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162 size_t dmfwrite(void *, const size_t, const size_t, DMResource *); |
| 235 | 163 char * dmfgets(char *s, int size, DMResource * f); |
| 0 | 164 |
| 165 | |
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166 // Helper functions for endianess based reading etc |
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167 int dmf_read_str(DMResource *, void *, size_t); |
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168 BOOL dmf_read_byte(DMResource *, Uint8 *); |
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169 |
| 0 | 170 BOOL dmf_read_be16(DMResource *, Uint16 *); |
| 171 BOOL dmf_read_be32(DMResource *, Uint32 *); | |
| 172 BOOL dmf_read_le16(DMResource *, Uint16 *); | |
| 173 BOOL dmf_read_le32(DMResource *, Uint32 *); | |
| 174 | |
| 175 #ifdef DM_HAVE_64BIT | |
| 176 BOOL dmf_read_be64(DMResource *, Uint64 *); | |
| 177 BOOL dmf_read_le64(DMResource *, Uint64 *); | |
| 178 #endif | |
| 179 | |
| 180 | |
| 181 #ifdef __cplusplus | |
| 182 } | |
| 183 #endif | |
| 184 | |
| 185 #endif // DMRES_H |