Mercurial > hg > dmlib
annotate src/dmlib.h @ 1047:b6c5e0c62588
Move DM_FSEEK64() and DM_FTELL64() macro definitions to dmlib.h
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Sun, 01 Mar 2015 18:09:20 +0200 |
| parents | 7e54b2d08ce7 |
| children | 509e6ed3a24e |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * DMLib | |
| 3 * -- Main header file | |
| 4 * Programmed and designed by Matti 'ccr' Hamalainen | |
| 863 | 5 * (C) Copyright 2011-2015 Tecnic Software productions (TNSP) |
| 0 | 6 */ |
| 7 #ifndef DMLIB_H | |
| 8 #define DMLIB_H | |
| 9 | |
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10 #include <SDL_config.h> |
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11 #include <SDL_endian.h> |
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12 #include <SDL_types.h> |
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13 #include <SDL_mutex.h> |
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14 #include <SDL_thread.h> |
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15 #include <SDL_video.h> |
| 0 | 16 #include <stdarg.h> |
| 17 | |
| 18 #ifdef DM_USE_ASSERTS | |
| 770 | 19 # include <assert.h> |
| 0 | 20 #else |
| 770 | 21 # define assert(NEXPR) // stub |
| 0 | 22 #endif |
| 23 | |
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24 |
| 0 | 25 #ifdef __cplusplus |
| 26 extern "C" { | |
| 27 #endif | |
| 28 | |
| 29 // Defaults | |
| 913 | 30 #define DM_PROG_AUTHOR "By Matti 'ccr' Hamalainen (C) Copyright 2015 TNSP" |
| 341 | 31 #define DM_PROG_LICENSE "Et all, see README / COPYING for more information." |
| 0 | 32 |
| 33 /* Error codes | |
| 34 */ | |
| 35 enum { | |
| 770 | 36 // General error codes |
| 37 DMERR_OK = 0, | |
| 38 DMERR_PROGRESS, // Status OK, but operation in progress | |
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39 |
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40 DMERR_INTERNAL, |
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41 |
| 770 | 42 DMERR_FOPEN, |
| 43 DMERR_FREAD, | |
| 44 DMERR_FWRITE, | |
| 45 DMERR_FSEEK, | |
| 46 DMERR_NOT_FOUND, // Resource/data not found | |
| 0 | 47 |
| 770 | 48 DMERR_INVALID_DATA, // Some data was invalid |
| 49 DMERR_MALLOC, // Memory allocation failure | |
| 50 DMERR_ALREADY_INIT, // Resource has already been initialized | |
| 51 DMERR_INIT_FAIL, // General initialization failure | |
| 52 DMERR_INVALID_ARGS, | |
| 0 | 53 |
| 770 | 54 DMERR_NULLPTR, // NULL pointer specified in critical argument |
| 55 DMERR_NOT_SUPPORTED,// Operation not supported | |
| 56 DMERR_OUT_OF_DATA, | |
| 57 DMERR_EXTRA_DATA, | |
| 58 DMERR_BOUNDS, | |
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59 |
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60 DMERR_DATA_ERROR, // Data decoding/encoding/parsing error |
| 0 | 61 |
| 770 | 62 // PACK-file subsystem |
| 63 DMERR_NOTPACK, | |
| 64 DMERR_VERSION, | |
| 65 DMERR_INVALID, | |
| 66 DMERR_COMPRESSION, | |
| 0 | 67 }; |
| 68 | |
| 955 | 69 |
| 813 | 70 // Directory/path separator stuff |
| 71 #define DM_DIR_SEPARATOR '/' | |
| 72 | |
| 0 | 73 |
| 74 // Resource management defines | |
| 75 #define DMRES_NAME_LEN 32 | |
| 76 #define DMRES_DATA_PACK "data.pak" // Name of the data-file | |
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77 #define DMRES_DATA_PATH "data/" // Sub-directory path |
| 0 | 78 #define DMRES_RES_FILE "res.txt" // Resource data file |
| 79 | |
| 80 | |
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81 /* File operations |
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82 */ |
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83 #ifdef HAVE_FSEEK64 |
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84 # define DM_FSEEK64 fseek64 |
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85 # define DM_FTELL64 ftell64 |
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86 #else |
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87 # define DM_FSEEK64 fseeko |
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88 # define DM_FTELL64 ftello |
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89 #endif |
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90 |
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91 |
| 0 | 92 /* Define a boolean type |
| 93 */ | |
| 94 #if !defined(FALSE) && !defined(TRUE) && !defined(BOOL) | |
| 95 typedef enum { FALSE = 0, TRUE = 1 } BOOL; | |
| 96 #endif | |
| 97 | |
| 98 #ifndef BOOL | |
| 770 | 99 # ifdef bool |
| 100 # define BOOL bool | |
| 101 # else | |
| 102 # define BOOL int | |
| 103 # endif | |
| 0 | 104 #endif |
| 105 | |
| 106 | |
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107 /* Math constants |
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108 */ |
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109 #define DM_PI 3.14159265358f |
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110 #define DM_PI2 6.28318530718f |
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111 #define DM_E 2.71828182846f |
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112 |
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113 |
| 0 | 114 /* Fixed point math type |
| 115 */ | |
| 116 typedef union | |
| 117 { | |
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118 Sint64 dw; |
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119 Sint32 w[2]; |
| 0 | 120 } DMFixedPoint; |
| 121 | |
| 122 | |
| 123 typedef union | |
| 124 { | |
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125 Sint32 dw; |
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126 Sint16 w[2]; |
| 0 | 127 } DMFixedPoint32; |
| 128 | |
| 129 | |
| 130 /* Macros for fixed point math | |
| 131 */ | |
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132 #define FP_SET(a, k) a.dw = k ## ULL |
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133 #define FP_CONV(a, k) a.dw = (k) |
| 0 | 134 |
| 135 #ifndef SDL_BYTEORDER | |
| 136 # error Undefined byteorder! | |
| 137 #endif | |
| 138 | |
| 139 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
| 140 # define FP_SETH(a, k) a.w[0] = (k) | |
| 141 # define FP_SETL(a, k) a.w[1] = (k) | |
| 142 # define FP_SETHL(a, h, l) { a.w[0] = (h); a.w[1] = (l); } | |
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143 # define FP_GETH32(a) a.w[0] |
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144 # define FP_GETL32(a) a.w[1] |
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145 # define FP_GETH16(a) a.w[0] |
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146 # define FP_GETL16(a) a.w[1] |
| 0 | 147 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) |
| 148 # define FP_SETH(a, k) a.w[1] = (k) | |
| 149 # define FP_SETL(a, k) a.w[0] = (k) | |
| 150 # define FP_SETHL(a, h, l) { a.w[1] = (h); a.w[0] = (l); } | |
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151 # define FP_GETH32(a) a.w[1] |
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152 # define FP_GETL32(a) a.w[0] |
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153 # define FP_GETH16(a) a.w[1] |
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154 # define FP_GETL16(a) a.w[0] |
| 0 | 155 #else |
| 156 # error Unsupported byte order! | |
| 157 #endif | |
| 158 | |
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159 #define FP_PRINTF64(a) printf("%.8x:%.8x", FP_GETH32(a), FP_GETL32(a)) |
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160 #define FP_PRINTF32(a) printf("%.4x:%.4x", FP_GETH16(a), FP_GETL16(a)) |
| 0 | 161 |
| 162 #define FP_ADD(a, b) a.dw += b.dw | |
| 163 #define FP_SUB(a, b) a.dw -= b.dw | |
| 164 #define FP_ADD_R(r, a, b) r.dw = a.dw + b.dw | |
| 165 #define FP_SUB_R(r, a, b) r.dw = a.dw - b.dw | |
| 166 #define FP_DIV(a, b) a.dw /= b.dw | |
| 167 #define FP_MUL(a, b) a.dw *= b.dw | |
| 168 #define FP_DIV_R(r, a, b) r.dw = (a.dw / b.dw) | |
| 169 #define FP_MUL_R(r, a, b) r.dw = (a.dw * b.dw) | |
| 170 | |
| 171 | |
| 172 /* Miscellaneous types | |
| 173 */ | |
| 174 typedef struct | |
| 175 { | |
| 176 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
| 177 Uint8 a,g,b,r; | |
| 178 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
| 179 Uint8 r,g,b,a; | |
| 180 #endif | |
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181 } DMColor; |
| 0 | 182 |
| 183 | |
| 184 typedef float DMFloat; | |
| 185 | |
| 186 | |
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187 // Macro for swapping two lvalues of same type |
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188 #define DM_SWAP(T, A, B) { if ((B) < (A)) { T swtmp = (B); B = (A); A = swtmp; } } |
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189 |
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190 |
| 0 | 191 /* Drawing modes used by blitting and some other functions. |
| 192 */ | |
| 193 enum | |
| 194 { | |
| 195 DMD_NONE = 0x0000, | |
| 196 DMD_TRANSPARENT = 0x0001, | |
| 197 DMD_SATURATE = 0x0002, | |
| 198 | |
| 199 DMD_ANTIALIAS = 0x0004, | |
| 200 | |
| 201 DMD_NMODES = 6 | |
| 202 }; | |
| 203 | |
| 204 | |
| 205 // Available bitdepths. Not all functions may support every one of these. | |
| 206 enum | |
| 207 { | |
| 208 DMD_8BIT = 0, | |
| 209 DMD_32BIT, | |
| 210 | |
| 211 DMD_NBITDEPTHS | |
| 212 }; | |
| 213 | |
| 214 | |
| 215 static inline int dmBitsPerPixel2Index(int bpp) | |
| 216 { | |
| 217 return (bpp == 8 ? 0 : (bpp == 32 ? 1 : -1)); | |
| 218 } | |
| 219 | |
| 220 | |
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221 static inline DMFloat dmClamp10(const DMFloat a) |
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222 { |
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223 return (a < 0.0f ? 0.0f : (a > 1.0f ? 1.0f : a)); |
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224 } |
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225 |
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226 |
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227 static inline int dmClamp(const int v, const int min, const int max) |
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228 { |
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229 return (v < min ? min : (v > max ? max : v)); |
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230 } |
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231 |
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232 |
| 0 | 233 /* Arbitrary line drawing |
| 234 */ | |
| 235 #ifdef DM_GFX_LINES | |
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236 #define DM_HEADER |
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237 #include "dmlinefunc.h" |
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238 |
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239 enum |
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240 { |
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241 CLIP_TOP = 1, |
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242 CLIP_BOTTOM = 2, |
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243 CLIP_RIGHT = 4, |
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244 CLIP_LEFT = 8 |
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245 }; |
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246 |
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247 #define DM_CLIP_FUNC dmClipLineCoordsFloat |
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248 #define DM_COORD_TYPE DMFloat |
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249 #include "dmlineclip.h" |
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250 |
|
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251 #undef DM_HEADER |
| 0 | 252 #endif |
| 253 | |
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254 |
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255 /* Various blitting functions |
| 0 | 256 */ |
| 257 #ifdef DM_GFX_BLITS | |
| 258 typedef int (*DMScaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, const int dwidth, const int dheight, SDL_Surface *dst); | |
| 259 DMScaledBlitFunc dmGetScaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); | |
| 260 int dmScaledBlitSurfaceAny(SDL_Surface *src, const int x0, const int y0, const int dwidth, const int dheight, SDL_Surface *dst, int mode); | |
|
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261 |
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262 typedef int (*DMUnscaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst); |
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263 DMUnscaledBlitFunc dmGetUnscaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); |
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264 int dmUnscaledBlitSurfaceAny(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst, int mode); |
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265 |
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266 SDL_Surface *dmConvertScaledSurface(SDL_Surface *src, SDL_PixelFormat *fmt, Uint32 flags, const int dwidth, const int dheight); |
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267 |
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268 |
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269 #define DM_HEADER |
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270 #include "dmblitfunc.h" |
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271 #undef DM_HEADER |
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272 |
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273 #endif // DM_GFX_BLITS |
| 0 | 274 |
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275 |
| 0 | 276 /* Misc functions |
| 277 */ | |
| 278 #ifdef DM_GFX_MISC | |
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279 |
| 0 | 280 void dmFillRect(SDL_Surface *screen, int x0, int y0, int x1, int y1, const Uint32 col); |
| 281 void dmDrawHLine(SDL_Surface *screen, int x0, int x1, int yc, const Uint32 col); | |
| 282 void dmDrawVLine(SDL_Surface *screen, int y0, int y1, int xc, const Uint32 col); | |
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283 |
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284 void dmDrawBox3D(SDL_Surface *screen, int x0, int y0, int x1, int y1, Uint32 ucol, Uint32 dcol); |
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285 void dmFillBox3D(SDL_Surface *screen, int x0, int y0, int x1, int y1, Uint32 bgcol, Uint32 ucol, Uint32 dcol); |
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286 |
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287 #endif // DM_GFX_MISC |
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288 |
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289 |
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290 static inline void dmClearSurface(SDL_Surface *screen, const Uint32 col) |
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291 { |
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292 SDL_FillRect(screen, NULL, col); |
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293 } |
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294 |
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295 |
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296 static inline Uint32 dmMapRGB(SDL_Surface *screen, int r, int g, int b) |
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297 { |
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298 return SDL_MapRGB(screen->format, r, g, b); |
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299 } |
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300 |
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301 |
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302 static inline Uint32 dmMapRGBA(SDL_Surface *screen, int r, int g, int b, int a) |
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303 { |
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304 return SDL_MapRGBA(screen->format, r, g, b, a); |
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305 } |
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306 |
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307 |
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308 static inline int dmDirectBlitSurface(SDL_Surface *bmp, SDL_Surface *screen) |
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309 { |
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310 return SDL_BlitSurface(bmp, NULL, screen, NULL); |
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311 } |
| 0 | 312 |
| 313 | |
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314 static inline SDL_Surface *dmCopySurface(SDL_Surface *src) |
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315 { |
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316 if (src != NULL) |
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317 return SDL_ConvertSurface(src, src->format, src->flags); |
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318 else |
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319 return NULL; |
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320 } |
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321 |
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322 |
| 0 | 323 /* Global variables |
| 324 */ | |
| 325 extern char *dmProgName, | |
| 326 *dmProgDesc, | |
| 327 *dmProgVersion, | |
| 328 *dmProgAuthor, | |
| 329 *dmProgLicense; | |
| 330 | |
| 331 extern int dmVerbosity; | |
| 332 void dmInitProg(char *name, char *desc, char *version, char *author, char *license); | |
| 333 void dmPrintBanner(FILE *outFile, const char *name, const char *usage); | |
| 334 | |
| 335 void dmMsgVA(int level, const char *fmt, va_list ap); | |
| 336 void dmMsg(int level, const char *fmt, ...); | |
| 337 void dmPrintVA(int level, const char *fmt, va_list ap); | |
| 338 void dmPrint(int level, const char *fmt, ...); | |
| 339 | |
|
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340 int dmErrorVA(const int error, const char *fmt, va_list); |
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341 int dmError(const int error, const char *fmt, ...); |
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342 void dmErrorMsg(const char *fmt, ...); |
| 955 | 343 int dmGetErrno(); |
| 344 const char *dmErrorStr(const int error); | |
| 345 | |
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346 #ifdef DM_DEBUG |
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347 # define dmErrorDBG dmError |
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348 #else |
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349 # define dmErrorDBG(ecode, fmt, ...) (ecode) // Dummy |
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350 #endif |
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351 |
| 0 | 352 void * dmMalloc(size_t); |
| 353 void * dmMalloc0(size_t); | |
| 354 void * dmRealloc(void *, size_t); | |
| 355 void * dmCalloc(size_t, size_t); | |
| 356 void dmFree(void *); | |
| 357 | |
| 358 char * dm_strdup(const char *); | |
|
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359 char * dm_strndup(const char *, const size_t n); |
| 0 | 360 char * dm_strdup_vprintf(const char *, va_list); |
| 361 char * dm_strdup_printf(const char *, ...); | |
| 362 | |
| 813 | 363 char * dm_basefilename(const char *filename); |
| 364 char * dm_strdup_fext(const char *filename, const char *fmt); | |
| 816 | 365 char * dm_strrcasecmp(char *str, const char *needle); |
| 0 | 366 |
| 955 | 367 BOOL dmGetIntVal(const char *s, unsigned int *i); |
| 368 | |
| 369 | |
|
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370 /* Mutexes |
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371 */ |
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372 #ifdef DM_MUTEX_DEBUG |
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373 |
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374 typedef struct |
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375 { |
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376 BOOL used; |
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377 Uint32 id; |
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378 int state; |
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379 } DMMutexLock; |
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380 |
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381 typedef struct |
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382 { |
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383 char *cr_file; |
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384 int cr_line; |
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385 SDL_mutex *m; |
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386 DMMutexLock locks[8]; |
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387 } DMMutex; |
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388 |
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389 #define dmMutexLock(x) dmDOMutexLock(x, __FILE__, (int) __LINE__) |
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390 #define dmMutexUnlock(x) dmDOMutexUnlock(x, __FILE__, (int) __LINE__) |
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391 #define dmCreateMutex(x) dmDOCreateMutex(__FILE__, (int) __LINE__) |
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392 |
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393 int dmDOMutexLock(DMMutex *mutex, const char *file, const int line); |
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394 int dmDOMutexUnlock(DMMutex *mutex, const char *file, const int line); |
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395 DMMutex * dmDOCreateMutex(const char *file, const int line); |
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396 void dmDestroyMutex(DMMutex *mutex); |
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397 |
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398 #else |
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399 #define DMMutex SDL_mutex |
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400 #define dmCreateMutex() SDL_CreateMutex() |
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401 #define dmDestroyMutex(x) SDL_DestroyMutex(x) |
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402 #define dmMutexLock(x) SDL_mutexP(x) |
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403 #define dmMutexUnlock(x) SDL_mutexV(x) |
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404 #endif |
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405 |
| 0 | 406 /* Endianess swapping macros |
| 407 */ | |
| 955 | 408 #define DM_SWAP_16_LE_BE(value) ((Uint16) ( \ |
| 0 | 409 (Uint16) ((Uint16) (value) >> 8) | \ |
| 410 (Uint16) ((Uint16) (value) << 8)) ) | |
| 411 | |
| 412 | |
| 955 | 413 #define DM_SWAP_32_LE_BE(value) ((Uint32) ( \ |
| 0 | 414 (((Uint32) (value) & (Uint32) 0x000000ffU) << 24) | \ |
| 415 (((Uint32) (value) & (Uint32) 0x0000ff00U) << 8) | \ | |
| 416 (((Uint32) (value) & (Uint32) 0x00ff0000U) >> 8) | \ | |
| 417 (((Uint32) (value) & (Uint32) 0xff000000U) >> 24))) | |
| 418 | |
| 955 | 419 #define DM_SWAP_64_LE_BE(value) ((Uint64) ( \ |
| 420 (((Uint64) (value) & (Uint64) 0x00000000000000ffULL) << 56) | \ | |
| 421 (((Uint64) (value) & (Uint64) 0x000000000000ff00ULL) << 40) | \ | |
| 422 (((Uint64) (value) & (Uint64) 0x0000000000ff0000ULL) << 24) | \ | |
| 423 (((Uint64) (value) & (Uint64) 0x00000000ff000000ULL) << 8) | \ | |
| 424 (((Uint64) (value) & (Uint64) 0x000000ff00000000ULL) >> 8) | \ | |
| 425 (((Uint64) (value) & (Uint64) 0x0000ff0000000000ULL) >> 24) | \ | |
| 426 (((Uint64) (value) & (Uint64) 0x00ff000000000000ULL) >> 40) | \ | |
| 0 | 427 (((Uint64) (value) & (Uint64) 0xff00000000000000ULL) >> 56))) |
| 873 | 428 |
| 0 | 429 |
| 430 /* Macros that swap only when needed ... | |
| 431 */ | |
| 432 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
| 770 | 433 # define DM_LE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) |
| 434 # define DM_LE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
| 435 # define DM_NATIVE_TO_LE16(value) DM_SWAP_16_LE_BE(value) | |
| 436 # define DM_NATIVE_TO_LE32(value) DM_SWAP_32_LE_BE(value) | |
| 0 | 437 |
| 770 | 438 # define DM_BE16_TO_NATIVE(value) ((Uint16) (value)) |
| 439 # define DM_BE32_TO_NATIVE(value) ((Uint32) (value)) | |
| 440 # define DM_NATIVE_TO_BE16(value) ((Uint16) (value)) | |
| 441 # define DM_NATIVE_TO_BE32(value) ((Uint32) (value)) | |
| 0 | 442 |
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443 # define DM_LE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) |
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444 # define DM_NATIVE_TO_LE64(value) DM_SWAP_64_LE_BE(value) |
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445 # define DM_BE64_TO_NATIVE(value) ((Uint64) (value)) |
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446 # define DM_NATIVE_TO_BE64(value) ((Uint64) (value)) |
| 0 | 447 |
| 448 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
| 449 | |
| 770 | 450 # define DM_LE16_TO_NATIVE(value) ((Uint16) (value)) |
| 451 # define DM_LE32_TO_NATIVE(value) ((Uint32) (value)) | |
| 452 # define DM_NATIVE_TO_LE16(value) ((Uint16) (value)) | |
| 453 # define DM_NATIVE_TO_LE32(value) ((Uint32) (value)) | |
| 0 | 454 |
| 770 | 455 # define DM_BE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) |
| 456 # define DM_BE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
| 457 # define DM_NATIVE_TO_BE16(value) DM_SWAP_16_LE_BE(value) | |
| 458 # define DM_NATIVE_TO_BE32(value) DM_SWAP_32_LE_BE(value) | |
| 0 | 459 |
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460 # define DM_LE64_TO_NATIVE(value) ((Uint64) (value)) |
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461 # define DM_NATIVE_TO_LE64(value) ((Uint64) (value)) |
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462 # define DM_BE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) |
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463 # define DM_NATIVE_TO_BE64(value) DM_SWAP_64_LE_BE(value) |
| 0 | 464 #endif |
| 465 | |
| 466 | |
| 467 #ifdef __cplusplus | |
| 468 } | |
| 469 #endif | |
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470 |
| 0 | 471 #endif // DMLIB_H |