Mercurial > hg > dmlib
annotate src/dmlib.h @ 1046:7e54b2d08ce7
Add special debug error message function/macro that can be
disabled and compiled out.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Sun, 01 Mar 2015 18:03:08 +0200 |
parents | 43594ac98f91 |
children | b6c5e0c62588 |
rev | line source |
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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 | |
81 /* Define a boolean type | |
82 */ | |
83 #if !defined(FALSE) && !defined(TRUE) && !defined(BOOL) | |
84 typedef enum { FALSE = 0, TRUE = 1 } BOOL; | |
85 #endif | |
86 | |
87 #ifndef BOOL | |
770 | 88 # ifdef bool |
89 # define BOOL bool | |
90 # else | |
91 # define BOOL int | |
92 # endif | |
0 | 93 #endif |
94 | |
95 | |
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96 /* Math constants |
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97 */ |
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98 #define DM_PI 3.14159265358f |
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99 #define DM_PI2 6.28318530718f |
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100 #define DM_E 2.71828182846f |
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101 |
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102 |
0 | 103 /* Fixed point math type |
104 */ | |
105 typedef union | |
106 { | |
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107 Sint64 dw; |
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108 Sint32 w[2]; |
0 | 109 } DMFixedPoint; |
110 | |
111 | |
112 typedef union | |
113 { | |
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114 Sint32 dw; |
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115 Sint16 w[2]; |
0 | 116 } DMFixedPoint32; |
117 | |
118 | |
119 /* Macros for fixed point math | |
120 */ | |
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121 #define FP_SET(a, k) a.dw = k ## ULL |
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122 #define FP_CONV(a, k) a.dw = (k) |
0 | 123 |
124 #ifndef SDL_BYTEORDER | |
125 # error Undefined byteorder! | |
126 #endif | |
127 | |
128 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
129 # define FP_SETH(a, k) a.w[0] = (k) | |
130 # define FP_SETL(a, k) a.w[1] = (k) | |
131 # define FP_SETHL(a, h, l) { a.w[0] = (h); a.w[1] = (l); } | |
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132 # define FP_GETH32(a) a.w[0] |
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133 # define FP_GETL32(a) a.w[1] |
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134 # define FP_GETH16(a) a.w[0] |
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135 # define FP_GETL16(a) a.w[1] |
0 | 136 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) |
137 # define FP_SETH(a, k) a.w[1] = (k) | |
138 # define FP_SETL(a, k) a.w[0] = (k) | |
139 # define FP_SETHL(a, h, l) { a.w[1] = (h); a.w[0] = (l); } | |
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140 # define FP_GETH32(a) a.w[1] |
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141 # define FP_GETL32(a) a.w[0] |
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142 # define FP_GETH16(a) a.w[1] |
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143 # define FP_GETL16(a) a.w[0] |
0 | 144 #else |
145 # error Unsupported byte order! | |
146 #endif | |
147 | |
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148 #define FP_PRINTF64(a) printf("%.8x:%.8x", FP_GETH32(a), FP_GETL32(a)) |
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149 #define FP_PRINTF32(a) printf("%.4x:%.4x", FP_GETH16(a), FP_GETL16(a)) |
0 | 150 |
151 #define FP_ADD(a, b) a.dw += b.dw | |
152 #define FP_SUB(a, b) a.dw -= b.dw | |
153 #define FP_ADD_R(r, a, b) r.dw = a.dw + b.dw | |
154 #define FP_SUB_R(r, a, b) r.dw = a.dw - b.dw | |
155 #define FP_DIV(a, b) a.dw /= b.dw | |
156 #define FP_MUL(a, b) a.dw *= b.dw | |
157 #define FP_DIV_R(r, a, b) r.dw = (a.dw / b.dw) | |
158 #define FP_MUL_R(r, a, b) r.dw = (a.dw * b.dw) | |
159 | |
160 | |
161 /* Miscellaneous types | |
162 */ | |
163 typedef struct | |
164 { | |
165 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
166 Uint8 a,g,b,r; | |
167 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
168 Uint8 r,g,b,a; | |
169 #endif | |
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170 } DMColor; |
0 | 171 |
172 | |
173 typedef float DMFloat; | |
174 | |
175 | |
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176 // Macro for swapping two lvalues of same type |
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177 #define DM_SWAP(T, A, B) { if ((B) < (A)) { T swtmp = (B); B = (A); A = swtmp; } } |
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178 |
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179 |
0 | 180 /* Drawing modes used by blitting and some other functions. |
181 */ | |
182 enum | |
183 { | |
184 DMD_NONE = 0x0000, | |
185 DMD_TRANSPARENT = 0x0001, | |
186 DMD_SATURATE = 0x0002, | |
187 | |
188 DMD_ANTIALIAS = 0x0004, | |
189 | |
190 DMD_NMODES = 6 | |
191 }; | |
192 | |
193 | |
194 // Available bitdepths. Not all functions may support every one of these. | |
195 enum | |
196 { | |
197 DMD_8BIT = 0, | |
198 DMD_32BIT, | |
199 | |
200 DMD_NBITDEPTHS | |
201 }; | |
202 | |
203 | |
204 static inline int dmBitsPerPixel2Index(int bpp) | |
205 { | |
206 return (bpp == 8 ? 0 : (bpp == 32 ? 1 : -1)); | |
207 } | |
208 | |
209 | |
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210 static inline DMFloat dmClamp10(const DMFloat a) |
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211 { |
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212 return (a < 0.0f ? 0.0f : (a > 1.0f ? 1.0f : a)); |
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213 } |
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214 |
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215 |
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216 static inline int dmClamp(const int v, const int min, const int max) |
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217 { |
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218 return (v < min ? min : (v > max ? max : v)); |
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219 } |
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220 |
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221 |
0 | 222 /* Arbitrary line drawing |
223 */ | |
224 #ifdef DM_GFX_LINES | |
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225 #define DM_HEADER |
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226 #include "dmlinefunc.h" |
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227 |
262
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228 enum |
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229 { |
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230 CLIP_TOP = 1, |
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231 CLIP_BOTTOM = 2, |
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232 CLIP_RIGHT = 4, |
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233 CLIP_LEFT = 8 |
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234 }; |
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235 |
234
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236 #define DM_CLIP_FUNC dmClipLineCoordsFloat |
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237 #define DM_COORD_TYPE DMFloat |
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238 #include "dmlineclip.h" |
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239 |
232
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240 #undef DM_HEADER |
0 | 241 #endif |
242 | |
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243 |
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244 /* Various blitting functions |
0 | 245 */ |
246 #ifdef DM_GFX_BLITS | |
247 typedef int (*DMScaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, const int dwidth, const int dheight, SDL_Surface *dst); | |
248 DMScaledBlitFunc dmGetScaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); | |
249 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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250 |
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251 typedef int (*DMUnscaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst); |
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252 DMUnscaledBlitFunc dmGetUnscaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); |
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253 int dmUnscaledBlitSurfaceAny(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst, int mode); |
232
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254 |
610
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255 SDL_Surface *dmConvertScaledSurface(SDL_Surface *src, SDL_PixelFormat *fmt, Uint32 flags, const int dwidth, const int dheight); |
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256 |
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257 |
232
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258 #define DM_HEADER |
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259 #include "dmblitfunc.h" |
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260 #undef DM_HEADER |
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261 |
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262 #endif // DM_GFX_BLITS |
0 | 263 |
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264 |
0 | 265 /* Misc functions |
266 */ | |
267 #ifdef DM_GFX_MISC | |
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268 |
0 | 269 void dmFillRect(SDL_Surface *screen, int x0, int y0, int x1, int y1, const Uint32 col); |
270 void dmDrawHLine(SDL_Surface *screen, int x0, int x1, int yc, const Uint32 col); | |
271 void dmDrawVLine(SDL_Surface *screen, int y0, int y1, int xc, const Uint32 col); | |
150
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272 |
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273 void dmDrawBox3D(SDL_Surface *screen, int x0, int y0, int x1, int y1, Uint32 ucol, Uint32 dcol); |
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274 void dmFillBox3D(SDL_Surface *screen, int x0, int y0, int x1, int y1, Uint32 bgcol, Uint32 ucol, Uint32 dcol); |
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275 |
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276 #endif // DM_GFX_MISC |
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277 |
90
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278 |
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279 static inline void dmClearSurface(SDL_Surface *screen, const Uint32 col) |
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280 { |
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281 SDL_FillRect(screen, NULL, col); |
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282 } |
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283 |
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284 |
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285 static inline Uint32 dmMapRGB(SDL_Surface *screen, int r, int g, int b) |
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286 { |
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287 return SDL_MapRGB(screen->format, r, g, b); |
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288 } |
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289 |
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290 |
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291 static inline Uint32 dmMapRGBA(SDL_Surface *screen, int r, int g, int b, int a) |
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292 { |
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293 return SDL_MapRGBA(screen->format, r, g, b, a); |
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294 } |
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295 |
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296 |
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297 static inline int dmDirectBlitSurface(SDL_Surface *bmp, SDL_Surface *screen) |
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298 { |
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299 return SDL_BlitSurface(bmp, NULL, screen, NULL); |
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300 } |
0 | 301 |
302 | |
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303 static inline SDL_Surface *dmCopySurface(SDL_Surface *src) |
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304 { |
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305 if (src != NULL) |
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306 return SDL_ConvertSurface(src, src->format, src->flags); |
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307 else |
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308 return NULL; |
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309 } |
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310 |
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311 |
0 | 312 /* Global variables |
313 */ | |
314 extern char *dmProgName, | |
315 *dmProgDesc, | |
316 *dmProgVersion, | |
317 *dmProgAuthor, | |
318 *dmProgLicense; | |
319 | |
320 extern int dmVerbosity; | |
321 void dmInitProg(char *name, char *desc, char *version, char *author, char *license); | |
322 void dmPrintBanner(FILE *outFile, const char *name, const char *usage); | |
323 | |
324 void dmMsgVA(int level, const char *fmt, va_list ap); | |
325 void dmMsg(int level, const char *fmt, ...); | |
326 void dmPrintVA(int level, const char *fmt, va_list ap); | |
327 void dmPrint(int level, const char *fmt, ...); | |
328 | |
958
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329 int dmErrorVA(const int error, const char *fmt, va_list); |
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330 int dmError(const int error, const char *fmt, ...); |
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331 void dmErrorMsg(const char *fmt, ...); |
955 | 332 int dmGetErrno(); |
333 const char *dmErrorStr(const int error); | |
334 | |
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335 #ifdef DM_DEBUG |
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336 # define dmErrorDBG dmError |
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337 #else |
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338 # define dmErrorDBG(ecode, fmt, ...) (ecode) // Dummy |
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339 #endif |
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340 |
0 | 341 void * dmMalloc(size_t); |
342 void * dmMalloc0(size_t); | |
343 void * dmRealloc(void *, size_t); | |
344 void * dmCalloc(size_t, size_t); | |
345 void dmFree(void *); | |
346 | |
347 char * dm_strdup(const char *); | |
744
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348 char * dm_strndup(const char *, const size_t n); |
0 | 349 char * dm_strdup_vprintf(const char *, va_list); |
350 char * dm_strdup_printf(const char *, ...); | |
351 | |
813 | 352 char * dm_basefilename(const char *filename); |
353 char * dm_strdup_fext(const char *filename, const char *fmt); | |
816 | 354 char * dm_strrcasecmp(char *str, const char *needle); |
0 | 355 |
955 | 356 BOOL dmGetIntVal(const char *s, unsigned int *i); |
357 | |
358 | |
294
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359 /* Mutexes |
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360 */ |
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361 #ifdef DM_MUTEX_DEBUG |
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362 |
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363 typedef struct |
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364 { |
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365 BOOL used; |
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366 Uint32 id; |
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367 int state; |
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368 } DMMutexLock; |
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369 |
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370 typedef struct |
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371 { |
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372 char *cr_file; |
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373 int cr_line; |
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374 SDL_mutex *m; |
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375 DMMutexLock locks[8]; |
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376 } DMMutex; |
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377 |
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378 #define dmMutexLock(x) dmDOMutexLock(x, __FILE__, (int) __LINE__) |
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379 #define dmMutexUnlock(x) dmDOMutexUnlock(x, __FILE__, (int) __LINE__) |
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380 #define dmCreateMutex(x) dmDOCreateMutex(__FILE__, (int) __LINE__) |
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381 |
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382 int dmDOMutexLock(DMMutex *mutex, const char *file, const int line); |
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383 int dmDOMutexUnlock(DMMutex *mutex, const char *file, const int line); |
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384 DMMutex * dmDOCreateMutex(const char *file, const int line); |
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385 void dmDestroyMutex(DMMutex *mutex); |
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386 |
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387 #else |
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388 #define DMMutex SDL_mutex |
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389 #define dmCreateMutex() SDL_CreateMutex() |
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390 #define dmDestroyMutex(x) SDL_DestroyMutex(x) |
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391 #define dmMutexLock(x) SDL_mutexP(x) |
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392 #define dmMutexUnlock(x) SDL_mutexV(x) |
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393 #endif |
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394 |
0 | 395 /* Endianess swapping macros |
396 */ | |
955 | 397 #define DM_SWAP_16_LE_BE(value) ((Uint16) ( \ |
0 | 398 (Uint16) ((Uint16) (value) >> 8) | \ |
399 (Uint16) ((Uint16) (value) << 8)) ) | |
400 | |
401 | |
955 | 402 #define DM_SWAP_32_LE_BE(value) ((Uint32) ( \ |
0 | 403 (((Uint32) (value) & (Uint32) 0x000000ffU) << 24) | \ |
404 (((Uint32) (value) & (Uint32) 0x0000ff00U) << 8) | \ | |
405 (((Uint32) (value) & (Uint32) 0x00ff0000U) >> 8) | \ | |
406 (((Uint32) (value) & (Uint32) 0xff000000U) >> 24))) | |
407 | |
955 | 408 #define DM_SWAP_64_LE_BE(value) ((Uint64) ( \ |
409 (((Uint64) (value) & (Uint64) 0x00000000000000ffULL) << 56) | \ | |
410 (((Uint64) (value) & (Uint64) 0x000000000000ff00ULL) << 40) | \ | |
411 (((Uint64) (value) & (Uint64) 0x0000000000ff0000ULL) << 24) | \ | |
412 (((Uint64) (value) & (Uint64) 0x00000000ff000000ULL) << 8) | \ | |
413 (((Uint64) (value) & (Uint64) 0x000000ff00000000ULL) >> 8) | \ | |
414 (((Uint64) (value) & (Uint64) 0x0000ff0000000000ULL) >> 24) | \ | |
415 (((Uint64) (value) & (Uint64) 0x00ff000000000000ULL) >> 40) | \ | |
0 | 416 (((Uint64) (value) & (Uint64) 0xff00000000000000ULL) >> 56))) |
873 | 417 |
0 | 418 |
419 /* Macros that swap only when needed ... | |
420 */ | |
421 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
770 | 422 # define DM_LE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) |
423 # define DM_LE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
424 # define DM_NATIVE_TO_LE16(value) DM_SWAP_16_LE_BE(value) | |
425 # define DM_NATIVE_TO_LE32(value) DM_SWAP_32_LE_BE(value) | |
0 | 426 |
770 | 427 # define DM_BE16_TO_NATIVE(value) ((Uint16) (value)) |
428 # define DM_BE32_TO_NATIVE(value) ((Uint32) (value)) | |
429 # define DM_NATIVE_TO_BE16(value) ((Uint16) (value)) | |
430 # define DM_NATIVE_TO_BE32(value) ((Uint32) (value)) | |
0 | 431 |
872
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432 # define DM_LE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) |
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433 # define DM_NATIVE_TO_LE64(value) DM_SWAP_64_LE_BE(value) |
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434 # define DM_BE64_TO_NATIVE(value) ((Uint64) (value)) |
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435 # define DM_NATIVE_TO_BE64(value) ((Uint64) (value)) |
0 | 436 |
437 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
438 | |
770 | 439 # define DM_LE16_TO_NATIVE(value) ((Uint16) (value)) |
440 # define DM_LE32_TO_NATIVE(value) ((Uint32) (value)) | |
441 # define DM_NATIVE_TO_LE16(value) ((Uint16) (value)) | |
442 # define DM_NATIVE_TO_LE32(value) ((Uint32) (value)) | |
0 | 443 |
770 | 444 # define DM_BE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) |
445 # define DM_BE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
446 # define DM_NATIVE_TO_BE16(value) DM_SWAP_16_LE_BE(value) | |
447 # define DM_NATIVE_TO_BE32(value) DM_SWAP_32_LE_BE(value) | |
0 | 448 |
872
b01d04e44b6f
Assume we always have 64bit type.
Matti Hamalainen <ccr@tnsp.org>
parents:
871
diff
changeset
|
449 # define DM_LE64_TO_NATIVE(value) ((Uint64) (value)) |
b01d04e44b6f
Assume we always have 64bit type.
Matti Hamalainen <ccr@tnsp.org>
parents:
871
diff
changeset
|
450 # define DM_NATIVE_TO_LE64(value) ((Uint64) (value)) |
b01d04e44b6f
Assume we always have 64bit type.
Matti Hamalainen <ccr@tnsp.org>
parents:
871
diff
changeset
|
451 # define DM_BE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) |
b01d04e44b6f
Assume we always have 64bit type.
Matti Hamalainen <ccr@tnsp.org>
parents:
871
diff
changeset
|
452 # define DM_NATIVE_TO_BE64(value) DM_SWAP_64_LE_BE(value) |
0 | 453 #endif |
454 | |
455 | |
456 #ifdef __cplusplus | |
457 } | |
458 #endif | |
359
59045853853d
Make resource management re-entrant.
Matti Hamalainen <ccr@tnsp.org>
parents:
341
diff
changeset
|
459 |
0 | 460 #endif // DMLIB_H |