Mercurial > hg > dmlib
annotate src/dmlib.h @ 1277:7eedcf1d5af7
Update copyright.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Fri, 21 Apr 2017 18:39:32 +0300 |
parents | 132706e3b94b |
children | 2260ed90ab6b |
rev | line source |
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0 | 1 /* |
2 * DMLib | |
3 * -- Main header file | |
4 * Programmed and designed by Matti 'ccr' Hamalainen | |
1277 | 5 * (C) Copyright 2011-2017 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 |
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25 // Check for arch bitness |
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26 #if defined(__WIN64) || defined(_WIN64) || defined(_WIN32) || defined(__WIN32) |
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27 # define DM_WINDOWS 1 |
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28 # if defined(__MINGW32__) || defined(__MINGW64__) |
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29 # define __USE_MINGW_ANSI_STDIO 1 |
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30 # endif |
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31 #endif |
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32 |
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33 #if !defined(DM_ARCH) |
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34 # if defined(__LP64__) || defined(_LP64) |
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35 # define DM_ARCH 64 |
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36 # else |
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37 # define DM_ARCH 32 |
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38 # endif |
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39 #endif |
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40 |
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41 #if !defined(DM_ARCH) && (defined(__WIN64) || defined(_WIN64)) |
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42 # define DM_ARCH 64 |
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43 #endif |
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44 |
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45 #if !defined(DM_ARCH) && (defined(__WIN32) || defined(_WIN32)) |
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46 # define DM_ARCH 32 |
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47 #endif |
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48 |
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49 |
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50 // Do we have a valid arch? |
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51 // If so, set some printf specifiers |
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52 #if DM_ARCH == 32 |
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53 # define DM_ARCH_32BIT 1 |
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54 # define DM_PRIu32 "u" |
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55 # define DM_PRId32 "d" |
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56 # define DM_PRIx32 "x" |
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57 # define DM_PRIu64 "llu" |
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58 # define DM_PRId64 "lld" |
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59 # define DM_PRIx64 "llx" |
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60 # define DM_PRIu_SIZE_T "u" |
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61 # define DM_PRId_SSIZE_T "d" |
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62 # define DM_PRIx_SIZE_T "x" |
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63 #elif DM_ARCH == 64 |
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64 # define DM_ARCH_64BIT 1 |
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65 # define DM_PRIu32 "u" |
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66 # define DM_PRId32 "d" |
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67 # define DM_PRIx32 "x" |
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68 # define DM_PRIu64 "lu" |
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69 # define DM_PRId64 "ld" |
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70 # define DM_PRIx64 "lx" |
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71 # define DM_PRIu_SIZE_T "lu" |
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72 # define DM_PRId_SSIZE_T "ld" |
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73 # define DM_PRIx_SIZE_T "lx" |
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74 #else |
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75 # error Could not determine architecture (32/64bit), please define DM_ARCH=32 or 64 |
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76 #endif |
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77 |
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78 |
0 | 79 #ifdef __cplusplus |
80 extern "C" { | |
81 #endif | |
82 | |
83 // Defaults | |
1277 | 84 #define DM_PROG_AUTHOR "By Matti 'ccr' Hamalainen (C) Copyright 2017 TNSP" |
341 | 85 #define DM_PROG_LICENSE "Et all, see README / COPYING for more information." |
0 | 86 |
87 /* Error codes | |
88 */ | |
89 enum { | |
770 | 90 // General error codes |
91 DMERR_OK = 0, | |
92 DMERR_PROGRESS, // Status OK, but operation in progress | |
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93 |
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94 DMERR_INTERNAL, |
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95 |
770 | 96 DMERR_FOPEN, |
97 DMERR_FREAD, | |
98 DMERR_FWRITE, | |
99 DMERR_FSEEK, | |
100 DMERR_NOT_FOUND, // Resource/data not found | |
0 | 101 |
770 | 102 DMERR_INVALID_DATA, // Some data was invalid |
103 DMERR_MALLOC, // Memory allocation failure | |
104 DMERR_ALREADY_INIT, // Resource has already been initialized | |
105 DMERR_INIT_FAIL, // General initialization failure | |
106 DMERR_INVALID_ARGS, | |
0 | 107 |
770 | 108 DMERR_NULLPTR, // NULL pointer specified in critical argument |
109 DMERR_NOT_SUPPORTED,// Operation not supported | |
110 DMERR_OUT_OF_DATA, | |
111 DMERR_EXTRA_DATA, | |
112 DMERR_BOUNDS, | |
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113 |
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114 DMERR_DATA_ERROR, // Data decoding/encoding/parsing error |
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115 |
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116 DMERR_VERSION, // Unsupported data version |
0 | 117 |
770 | 118 // PACK-file subsystem |
119 DMERR_NOTPACK, | |
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120 DMERR_PACK_VERSION, |
770 | 121 DMERR_INVALID, |
122 DMERR_COMPRESSION, | |
0 | 123 }; |
124 | |
955 | 125 |
813 | 126 // Directory/path separator stuff |
127 #define DM_DIR_SEPARATOR '/' | |
128 | |
0 | 129 |
130 // Resource management defines | |
131 #define DMRES_NAME_LEN 32 | |
132 #define DMRES_DATA_PACK "data.pak" // Name of the data-file | |
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133 #define DMRES_DATA_PATH "data/" // Sub-directory path |
0 | 134 #define DMRES_RES_FILE "res.txt" // Resource data file |
135 | |
136 | |
137 /* Define a boolean type | |
138 */ | |
139 #if !defined(FALSE) && !defined(TRUE) && !defined(BOOL) | |
140 typedef enum { FALSE = 0, TRUE = 1 } BOOL; | |
141 #endif | |
142 | |
143 #ifndef BOOL | |
770 | 144 # ifdef bool |
145 # define BOOL bool | |
146 # else | |
147 # define BOOL int | |
148 # endif | |
0 | 149 #endif |
150 | |
151 | |
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152 /* Math constants |
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153 */ |
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154 #define DM_PI 3.14159265358f |
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155 #define DM_PI2 6.28318530718f |
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156 #define DM_E 2.71828182846f |
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157 |
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158 |
1146 | 159 /* Fixed point math types |
0 | 160 */ |
161 typedef union | |
162 { | |
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163 Sint64 dw; |
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164 Sint32 w[2]; |
0 | 165 } DMFixedPoint; |
166 | |
167 | |
168 typedef union | |
169 { | |
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170 Sint32 dw; |
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171 Sint16 w[2]; |
0 | 172 } DMFixedPoint32; |
173 | |
174 | |
175 /* Macros for fixed point math | |
176 */ | |
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177 #define FP_SET(a, k) a.dw = k ## ULL |
138
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178 #define FP_CONV(a, k) a.dw = (k) |
0 | 179 |
180 #ifndef SDL_BYTEORDER | |
181 # error Undefined byteorder! | |
182 #endif | |
183 | |
184 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
185 # define FP_SETH(a, k) a.w[0] = (k) | |
186 # define FP_SETL(a, k) a.w[1] = (k) | |
187 # define FP_SETHL(a, h, l) { a.w[0] = (h); a.w[1] = (l); } | |
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188 # define FP_GETH32(a) a.w[0] |
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189 # define FP_GETL32(a) a.w[1] |
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190 # define FP_GETH16(a) a.w[0] |
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191 # define FP_GETL16(a) a.w[1] |
0 | 192 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) |
193 # define FP_SETH(a, k) a.w[1] = (k) | |
194 # define FP_SETL(a, k) a.w[0] = (k) | |
195 # define FP_SETHL(a, h, l) { a.w[1] = (h); a.w[0] = (l); } | |
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196 # define FP_GETH32(a) a.w[1] |
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197 # define FP_GETL32(a) a.w[0] |
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198 # define FP_GETH16(a) a.w[1] |
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199 # define FP_GETL16(a) a.w[0] |
0 | 200 #else |
201 # error Unsupported byte order! | |
202 #endif | |
203 | |
809
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204 #define FP_PRINTF64(a) printf("%.8x:%.8x", FP_GETH32(a), FP_GETL32(a)) |
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205 #define FP_PRINTF32(a) printf("%.4x:%.4x", FP_GETH16(a), FP_GETL16(a)) |
0 | 206 |
207 #define FP_ADD(a, b) a.dw += b.dw | |
208 #define FP_SUB(a, b) a.dw -= b.dw | |
209 #define FP_ADD_R(r, a, b) r.dw = a.dw + b.dw | |
210 #define FP_SUB_R(r, a, b) r.dw = a.dw - b.dw | |
211 #define FP_DIV(a, b) a.dw /= b.dw | |
212 #define FP_MUL(a, b) a.dw *= b.dw | |
213 #define FP_DIV_R(r, a, b) r.dw = (a.dw / b.dw) | |
214 #define FP_MUL_R(r, a, b) r.dw = (a.dw * b.dw) | |
215 | |
216 | |
217 /* Miscellaneous types | |
218 */ | |
219 typedef struct | |
220 { | |
221 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
222 Uint8 a,g,b,r; | |
223 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
224 Uint8 r,g,b,a; | |
225 #endif | |
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226 } DMColor; |
0 | 227 |
228 | |
229 typedef float DMFloat; | |
230 | |
231 | |
118
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232 // Macro for swapping two lvalues of same type |
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233 #define DM_SWAP(T, A, B) { if ((B) < (A)) { T swtmp = (B); B = (A); A = swtmp; } } |
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234 |
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235 |
0 | 236 /* Drawing modes used by blitting and some other functions. |
237 */ | |
238 enum | |
239 { | |
240 DMD_NONE = 0x0000, | |
241 DMD_TRANSPARENT = 0x0001, | |
242 DMD_SATURATE = 0x0002, | |
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243 |
0 | 244 DMD_ANTIALIAS = 0x0004, |
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245 |
0 | 246 DMD_NMODES = 6 |
247 }; | |
248 | |
249 | |
250 // Available bitdepths. Not all functions may support every one of these. | |
251 enum | |
252 { | |
253 DMD_8BIT = 0, | |
254 DMD_32BIT, | |
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255 |
0 | 256 DMD_NBITDEPTHS |
257 }; | |
258 | |
259 | |
260 static inline int dmBitsPerPixel2Index(int bpp) | |
261 { | |
262 return (bpp == 8 ? 0 : (bpp == 32 ? 1 : -1)); | |
263 } | |
264 | |
265 | |
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266 static inline DMFloat dmClamp10(const DMFloat a) |
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267 { |
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268 return (a < 0.0f ? 0.0f : (a > 1.0f ? 1.0f : a)); |
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269 } |
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270 |
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271 |
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272 static inline int dmClamp(const int v, const int min, const int max) |
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273 { |
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274 return (v < min ? min : (v > max ? max : v)); |
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275 } |
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276 |
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277 |
0 | 278 /* Arbitrary line drawing |
279 */ | |
280 #ifdef DM_GFX_LINES | |
232
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281 #define DM_HEADER |
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282 #include "dmlinefunc.h" |
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283 |
262
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284 enum |
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285 { |
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286 CLIP_TOP = 1, |
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287 CLIP_BOTTOM = 2, |
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288 CLIP_RIGHT = 4, |
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289 CLIP_LEFT = 8 |
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290 }; |
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291 |
234
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292 #define DM_CLIP_FUNC dmClipLineCoordsFloat |
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293 #define DM_COORD_TYPE DMFloat |
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294 #include "dmlineclip.h" |
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295 |
232
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296 #undef DM_HEADER |
0 | 297 #endif |
298 | |
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299 |
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300 /* Various blitting functions |
0 | 301 */ |
302 #ifdef DM_GFX_BLITS | |
303 typedef int (*DMScaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, const int dwidth, const int dheight, SDL_Surface *dst); | |
304 DMScaledBlitFunc dmGetScaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); | |
305 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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306 |
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307 typedef int (*DMUnscaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst); |
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308 DMUnscaledBlitFunc dmGetUnscaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); |
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309 int dmUnscaledBlitSurfaceAny(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst, int mode); |
232
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310 |
610
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311 SDL_Surface *dmConvertScaledSurface(SDL_Surface *src, SDL_PixelFormat *fmt, Uint32 flags, const int dwidth, const int dheight); |
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312 |
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313 |
232
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314 #define DM_HEADER |
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315 #include "dmblitfunc.h" |
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316 #undef DM_HEADER |
612
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317 |
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318 #endif // DM_GFX_BLITS |
0 | 319 |
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320 |
0 | 321 /* Misc functions |
322 */ | |
323 #ifdef DM_GFX_MISC | |
612
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324 |
0 | 325 void dmFillRect(SDL_Surface *screen, int x0, int y0, int x1, int y1, const Uint32 col); |
326 void dmDrawHLine(SDL_Surface *screen, int x0, int x1, int yc, const Uint32 col); | |
327 void dmDrawVLine(SDL_Surface *screen, int y0, int y1, int xc, const Uint32 col); | |
150
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328 |
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329 void dmDrawBox3D(SDL_Surface *screen, int x0, int y0, int x1, int y1, Uint32 ucol, Uint32 dcol); |
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330 void dmFillBox3D(SDL_Surface *screen, int x0, int y0, int x1, int y1, Uint32 bgcol, Uint32 ucol, Uint32 dcol); |
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331 |
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332 #endif // DM_GFX_MISC |
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333 |
90
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334 |
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335 static inline void dmClearSurface(SDL_Surface *screen, const Uint32 col) |
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336 { |
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337 SDL_FillRect(screen, NULL, col); |
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338 } |
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339 |
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340 |
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341 static inline Uint32 dmMapRGB(SDL_Surface *screen, int r, int g, int b) |
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342 { |
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343 return SDL_MapRGB(screen->format, r, g, b); |
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344 } |
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345 |
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346 |
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347 static inline Uint32 dmMapRGBA(SDL_Surface *screen, int r, int g, int b, int a) |
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348 { |
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349 return SDL_MapRGBA(screen->format, r, g, b, a); |
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350 } |
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351 |
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352 |
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353 static inline int dmDirectBlitSurface(SDL_Surface *bmp, SDL_Surface *screen) |
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354 { |
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355 return SDL_BlitSurface(bmp, NULL, screen, NULL); |
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356 } |
0 | 357 |
358 | |
611
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359 static inline SDL_Surface *dmCopySurface(SDL_Surface *src) |
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360 { |
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361 if (src != NULL) |
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362 return SDL_ConvertSurface(src, src->format, src->flags); |
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363 else |
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364 return NULL; |
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365 } |
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366 |
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367 |
0 | 368 /* Global variables |
369 */ | |
370 extern char *dmProgName, | |
371 *dmProgDesc, | |
372 *dmProgVersion, | |
373 *dmProgAuthor, | |
374 *dmProgLicense; | |
375 | |
376 extern int dmVerbosity; | |
377 void dmInitProg(char *name, char *desc, char *version, char *author, char *license); | |
378 void dmPrintBanner(FILE *outFile, const char *name, const char *usage); | |
379 | |
380 void dmMsgVA(int level, const char *fmt, va_list ap); | |
381 void dmMsg(int level, const char *fmt, ...); | |
382 void dmPrintVA(int level, const char *fmt, va_list ap); | |
383 void dmPrint(int level, const char *fmt, ...); | |
384 | |
958
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385 int dmErrorVA(const int error, const char *fmt, va_list); |
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386 int dmError(const int error, const char *fmt, ...); |
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387 void dmErrorMsg(const char *fmt, ...); |
955 | 388 int dmGetErrno(); |
389 const char *dmErrorStr(const int error); | |
390 | |
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391 #ifdef DM_DEBUG |
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392 # define dmErrorDBG dmError |
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393 # define dmErrorDBGMsg dmErrorMsg |
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394 #else |
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395 # define dmErrorDBG(ecode, fmt, ...) (ecode) // Dummy |
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396 # define dmErrorDBGMsg(fmt, ...) |
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397 #endif |
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398 |
0 | 399 void * dmMalloc(size_t); |
400 void * dmMalloc0(size_t); | |
401 void * dmRealloc(void *, size_t); | |
402 void * dmCalloc(size_t, size_t); | |
403 void dmFree(void *); | |
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404 #if defined(DM_HAVE_MEMSET) || defined(DM_HAVE_STRING_H) |
1166 | 405 static inline void * dmMemset(void *ptr, const int c, size_t n) |
406 { | |
407 return memset(ptr, c, n); | |
408 } | |
409 #else | |
410 void * dmMemset(void *ptr, const int c, size_t n); | |
411 #endif | |
0 | 412 |
413 char * dm_strdup(const char *); | |
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414 char * dm_strndup(const char *, const size_t n); |
0 | 415 char * dm_strdup_vprintf(const char *, va_list); |
416 char * dm_strdup_printf(const char *, ...); | |
417 | |
813 | 418 char * dm_basefilename(const char *filename); |
419 char * dm_strdup_fext(const char *filename, const char *fmt); | |
816 | 420 char * dm_strrcasecmp(char *str, const char *needle); |
0 | 421 |
955 | 422 BOOL dmGetIntVal(const char *s, unsigned int *i); |
423 | |
424 | |
294
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425 /* Mutexes |
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426 */ |
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427 #ifdef DM_MUTEX_DEBUG |
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428 |
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429 typedef struct |
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430 { |
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431 BOOL used; |
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432 Uint32 id; |
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433 int state; |
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434 } DMMutexLock; |
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435 |
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436 typedef struct |
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437 { |
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438 char *cr_file; |
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439 int cr_line; |
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440 SDL_mutex *m; |
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441 DMMutexLock locks[8]; |
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442 } DMMutex; |
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443 |
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444 #define dmMutexLock(x) dmDOMutexLock(x, __FILE__, (int) __LINE__) |
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445 #define dmMutexUnlock(x) dmDOMutexUnlock(x, __FILE__, (int) __LINE__) |
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446 #define dmCreateMutex(x) dmDOCreateMutex(__FILE__, (int) __LINE__) |
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447 |
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448 int dmDOMutexLock(DMMutex *mutex, const char *file, const int line); |
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449 int dmDOMutexUnlock(DMMutex *mutex, const char *file, const int line); |
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450 DMMutex * dmDOCreateMutex(const char *file, const int line); |
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451 void dmDestroyMutex(DMMutex *mutex); |
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452 |
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453 #else |
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454 #define DMMutex SDL_mutex |
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455 #define dmCreateMutex() SDL_CreateMutex() |
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456 #define dmDestroyMutex(x) SDL_DestroyMutex(x) |
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457 #define dmMutexLock(x) SDL_mutexP(x) |
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458 #define dmMutexUnlock(x) SDL_mutexV(x) |
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459 #endif |
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460 |
0 | 461 /* Endianess swapping macros |
462 */ | |
955 | 463 #define DM_SWAP_16_LE_BE(value) ((Uint16) ( \ |
0 | 464 (Uint16) ((Uint16) (value) >> 8) | \ |
465 (Uint16) ((Uint16) (value) << 8)) ) | |
466 | |
467 | |
955 | 468 #define DM_SWAP_32_LE_BE(value) ((Uint32) ( \ |
0 | 469 (((Uint32) (value) & (Uint32) 0x000000ffU) << 24) | \ |
470 (((Uint32) (value) & (Uint32) 0x0000ff00U) << 8) | \ | |
471 (((Uint32) (value) & (Uint32) 0x00ff0000U) >> 8) | \ | |
472 (((Uint32) (value) & (Uint32) 0xff000000U) >> 24))) | |
473 | |
955 | 474 #define DM_SWAP_64_LE_BE(value) ((Uint64) ( \ |
475 (((Uint64) (value) & (Uint64) 0x00000000000000ffULL) << 56) | \ | |
476 (((Uint64) (value) & (Uint64) 0x000000000000ff00ULL) << 40) | \ | |
477 (((Uint64) (value) & (Uint64) 0x0000000000ff0000ULL) << 24) | \ | |
478 (((Uint64) (value) & (Uint64) 0x00000000ff000000ULL) << 8) | \ | |
479 (((Uint64) (value) & (Uint64) 0x000000ff00000000ULL) >> 8) | \ | |
480 (((Uint64) (value) & (Uint64) 0x0000ff0000000000ULL) >> 24) | \ | |
481 (((Uint64) (value) & (Uint64) 0x00ff000000000000ULL) >> 40) | \ | |
0 | 482 (((Uint64) (value) & (Uint64) 0xff00000000000000ULL) >> 56))) |
873 | 483 |
0 | 484 |
485 /* Macros that swap only when needed ... | |
486 */ | |
487 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
770 | 488 # define DM_LE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) |
489 # define DM_LE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
490 # define DM_NATIVE_TO_LE16(value) DM_SWAP_16_LE_BE(value) | |
491 # define DM_NATIVE_TO_LE32(value) DM_SWAP_32_LE_BE(value) | |
0 | 492 |
770 | 493 # define DM_BE16_TO_NATIVE(value) ((Uint16) (value)) |
494 # define DM_BE32_TO_NATIVE(value) ((Uint32) (value)) | |
495 # define DM_NATIVE_TO_BE16(value) ((Uint16) (value)) | |
496 # define DM_NATIVE_TO_BE32(value) ((Uint32) (value)) | |
0 | 497 |
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498 # define DM_LE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) |
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499 # define DM_NATIVE_TO_LE64(value) DM_SWAP_64_LE_BE(value) |
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500 # define DM_BE64_TO_NATIVE(value) ((Uint64) (value)) |
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501 # define DM_NATIVE_TO_BE64(value) ((Uint64) (value)) |
0 | 502 |
503 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
504 | |
770 | 505 # define DM_LE16_TO_NATIVE(value) ((Uint16) (value)) |
506 # define DM_LE32_TO_NATIVE(value) ((Uint32) (value)) | |
507 # define DM_NATIVE_TO_LE16(value) ((Uint16) (value)) | |
508 # define DM_NATIVE_TO_LE32(value) ((Uint32) (value)) | |
0 | 509 |
770 | 510 # define DM_BE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) |
511 # define DM_BE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
512 # define DM_NATIVE_TO_BE16(value) DM_SWAP_16_LE_BE(value) | |
513 # define DM_NATIVE_TO_BE32(value) DM_SWAP_32_LE_BE(value) | |
0 | 514 |
872
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515 # define DM_LE64_TO_NATIVE(value) ((Uint64) (value)) |
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516 # define DM_NATIVE_TO_LE64(value) ((Uint64) (value)) |
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517 # define DM_BE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) |
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518 # define DM_NATIVE_TO_BE64(value) DM_SWAP_64_LE_BE(value) |
0 | 519 #endif |
520 | |
521 | |
522 #ifdef __cplusplus | |
523 } | |
524 #endif | |
359
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525 |
0 | 526 #endif // DMLIB_H |