Mercurial > hg > dmlib
annotate src/dmlib.h @ 1601:a3023fe79c43
Change dmConvertScaledSurface() interface by remove flags.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Mon, 14 May 2018 09:44:21 +0300 |
parents | 5e5f75b45f8d |
children | 53482dbdef73 |
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> |
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16 #include <SDL_render.h> |
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17 #include <stdio.h> |
0 | 18 #include <stdarg.h> |
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19 #include <stdlib.h> |
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20 #include <ctype.h> |
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21 |
0 | 22 |
23 #ifdef DM_USE_ASSERTS | |
770 | 24 # include <assert.h> |
0 | 25 #else |
770 | 26 # define assert(NEXPR) // stub |
0 | 27 #endif |
28 | |
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29 |
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30 // Check for arch bitness |
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31 #if defined(__WIN64) || defined(_WIN64) || defined(_WIN32) || defined(__WIN32) |
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32 # define DM_WINDOWS 1 |
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33 # if defined(__MINGW32__) || defined(__MINGW64__) |
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34 # define __USE_MINGW_ANSI_STDIO 1 |
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35 # endif |
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36 #endif |
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37 |
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38 #if !defined(DM_ARCH) |
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39 # if defined(__LP64__) || defined(_LP64) |
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40 # define DM_ARCH 64 |
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41 # else |
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42 # define DM_ARCH 32 |
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43 # endif |
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44 #endif |
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45 |
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46 #if !defined(DM_ARCH) && (defined(__WIN64) || defined(_WIN64)) |
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47 # define DM_ARCH 64 |
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48 #endif |
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49 |
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50 #if !defined(DM_ARCH) && (defined(__WIN32) || defined(_WIN32)) |
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51 # define DM_ARCH 32 |
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52 #endif |
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53 |
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54 |
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55 // Do we have a valid arch? |
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56 // If so, set some printf specifiers |
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57 #if DM_ARCH == 32 |
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58 # define DM_ARCH_32BIT 1 |
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59 # define DM_PRIu32 "u" |
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60 # define DM_PRId32 "d" |
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61 # define DM_PRIx32 "x" |
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62 # define DM_PRIu64 "llu" |
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63 # define DM_PRId64 "lld" |
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64 # define DM_PRIx64 "llx" |
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65 # define DM_PRIu_SIZE_T "u" |
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66 # define DM_PRId_SSIZE_T "d" |
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67 # define DM_PRIx_SIZE_T "x" |
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68 #elif DM_ARCH == 64 |
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69 # define DM_ARCH_64BIT 1 |
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70 # define DM_PRIu32 "u" |
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71 # define DM_PRId32 "d" |
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72 # define DM_PRIx32 "x" |
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73 # define DM_PRIu64 "lu" |
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74 # define DM_PRId64 "ld" |
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75 # define DM_PRIx64 "lx" |
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76 # define DM_PRIu_SIZE_T "lu" |
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77 # define DM_PRId_SSIZE_T "ld" |
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78 # define DM_PRIx_SIZE_T "lx" |
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79 #else |
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80 # error Could not determine architecture (32/64bit), please define DM_ARCH=32 or 64 |
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81 #endif |
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82 |
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83 |
0 | 84 #ifdef __cplusplus |
85 extern "C" { | |
86 #endif | |
87 | |
88 // Defaults | |
1277 | 89 #define DM_PROG_AUTHOR "By Matti 'ccr' Hamalainen (C) Copyright 2017 TNSP" |
341 | 90 #define DM_PROG_LICENSE "Et all, see README / COPYING for more information." |
0 | 91 |
92 /* Error codes | |
93 */ | |
94 enum { | |
770 | 95 // General error codes |
96 DMERR_OK = 0, | |
97 DMERR_PROGRESS, // Status OK, but operation in progress | |
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98 |
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99 DMERR_INTERNAL, |
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100 |
770 | 101 DMERR_FOPEN, |
102 DMERR_FREAD, | |
103 DMERR_FWRITE, | |
104 DMERR_FSEEK, | |
105 DMERR_NOT_FOUND, // Resource/data not found | |
0 | 106 |
770 | 107 DMERR_INVALID_DATA, // Some data was invalid |
108 DMERR_MALLOC, // Memory allocation failure | |
109 DMERR_ALREADY_INIT, // Resource has already been initialized | |
110 DMERR_INIT_FAIL, // General initialization failure | |
111 DMERR_INVALID_ARGS, | |
0 | 112 |
770 | 113 DMERR_NULLPTR, // NULL pointer specified in critical argument |
114 DMERR_NOT_SUPPORTED,// Operation not supported | |
115 DMERR_OUT_OF_DATA, | |
116 DMERR_EXTRA_DATA, | |
117 DMERR_BOUNDS, | |
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118 |
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119 DMERR_DATA_ERROR, // Data decoding/encoding/parsing error |
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120 |
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121 DMERR_VERSION, // Unsupported data version |
0 | 122 |
770 | 123 // PACK-file subsystem |
124 DMERR_NOTPACK, | |
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125 DMERR_PACK_VERSION, |
770 | 126 DMERR_INVALID, |
127 DMERR_COMPRESSION, | |
0 | 128 }; |
129 | |
955 | 130 |
813 | 131 // Directory/path separator stuff |
132 #define DM_DIR_SEPARATOR '/' | |
133 | |
0 | 134 |
135 // Resource management defines | |
136 #define DMRES_NAME_LEN 32 | |
137 #define DMRES_DATA_PACK "data.pak" // Name of the data-file | |
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138 #define DMRES_DATA_PATH "data/" // Sub-directory path |
0 | 139 #define DMRES_RES_FILE "res.txt" // Resource data file |
140 | |
141 | |
142 /* Define a boolean type | |
143 */ | |
144 #if !defined(FALSE) && !defined(TRUE) && !defined(BOOL) | |
145 typedef enum { FALSE = 0, TRUE = 1 } BOOL; | |
146 #endif | |
147 | |
148 #ifndef BOOL | |
770 | 149 # ifdef bool |
150 # define BOOL bool | |
151 # else | |
152 # define BOOL int | |
153 # endif | |
0 | 154 #endif |
155 | |
156 | |
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157 /* Math constants |
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158 */ |
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159 #define DM_PI 3.14159265358f |
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160 #define DM_PI2 6.28318530718f |
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161 #define DM_E 2.71828182846f |
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162 |
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163 |
1146 | 164 /* Fixed point math types |
0 | 165 */ |
166 typedef union | |
167 { | |
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168 Sint64 dw; |
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169 Sint32 w[2]; |
0 | 170 } DMFixedPoint; |
171 | |
172 | |
173 typedef union | |
174 { | |
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175 Sint32 dw; |
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176 Sint16 w[2]; |
0 | 177 } DMFixedPoint32; |
178 | |
179 | |
180 /* Macros for fixed point math | |
181 */ | |
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182 #define FP_SET(a, k) a.dw = k ## ULL |
138
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183 #define FP_CONV(a, k) a.dw = (k) |
0 | 184 |
185 #ifndef SDL_BYTEORDER | |
186 # error Undefined byteorder! | |
187 #endif | |
188 | |
189 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
190 # define FP_SETH(a, k) a.w[0] = (k) | |
191 # define FP_SETL(a, k) a.w[1] = (k) | |
192 # define FP_SETHL(a, h, l) { a.w[0] = (h); a.w[1] = (l); } | |
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193 # define FP_GETH32(a) a.w[0] |
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194 # define FP_GETL32(a) a.w[1] |
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195 # define FP_GETH16(a) a.w[0] |
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196 # define FP_GETL16(a) a.w[1] |
0 | 197 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) |
198 # define FP_SETH(a, k) a.w[1] = (k) | |
199 # define FP_SETL(a, k) a.w[0] = (k) | |
200 # define FP_SETHL(a, h, l) { a.w[1] = (h); a.w[0] = (l); } | |
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201 # define FP_GETH32(a) a.w[1] |
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202 # define FP_GETL32(a) a.w[0] |
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203 # define FP_GETH16(a) a.w[1] |
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204 # define FP_GETL16(a) a.w[0] |
0 | 205 #else |
206 # error Unsupported byte order! | |
207 #endif | |
208 | |
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209 #define FP_PRINTF64(a) printf("%.8x:%.8x", FP_GETH32(a), FP_GETL32(a)) |
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210 #define FP_PRINTF32(a) printf("%.4x:%.4x", FP_GETH16(a), FP_GETL16(a)) |
0 | 211 |
212 #define FP_ADD(a, b) a.dw += b.dw | |
213 #define FP_SUB(a, b) a.dw -= b.dw | |
214 #define FP_ADD_R(r, a, b) r.dw = a.dw + b.dw | |
215 #define FP_SUB_R(r, a, b) r.dw = a.dw - b.dw | |
216 #define FP_DIV(a, b) a.dw /= b.dw | |
217 #define FP_MUL(a, b) a.dw *= b.dw | |
218 #define FP_DIV_R(r, a, b) r.dw = (a.dw / b.dw) | |
219 #define FP_MUL_R(r, a, b) r.dw = (a.dw * b.dw) | |
220 | |
221 | |
222 /* Miscellaneous types | |
223 */ | |
224 typedef struct | |
225 { | |
226 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
227 Uint8 a,g,b,r; | |
228 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
229 Uint8 r,g,b,a; | |
230 #endif | |
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231 } DMColor; |
0 | 232 |
233 | |
234 typedef float DMFloat; | |
235 | |
236 | |
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237 // Macro for swapping two lvalues of same type |
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238 #define DM_SWAP(T, A, B) { if ((B) < (A)) { T swtmp = (B); B = (A); A = swtmp; } } |
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239 |
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240 |
0 | 241 /* Drawing modes used by blitting and some other functions. |
242 */ | |
243 enum | |
244 { | |
245 DMD_NONE = 0x0000, | |
246 DMD_TRANSPARENT = 0x0001, | |
247 DMD_SATURATE = 0x0002, | |
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248 |
0 | 249 DMD_ANTIALIAS = 0x0004, |
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250 |
0 | 251 DMD_NMODES = 6 |
252 }; | |
253 | |
254 | |
255 // Available bitdepths. Not all functions may support every one of these. | |
256 enum | |
257 { | |
258 DMD_8BIT = 0, | |
259 DMD_32BIT, | |
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260 |
0 | 261 DMD_NBITDEPTHS |
262 }; | |
263 | |
264 | |
265 static inline int dmBitsPerPixel2Index(int bpp) | |
266 { | |
267 return (bpp == 8 ? 0 : (bpp == 32 ? 1 : -1)); | |
268 } | |
269 | |
270 | |
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271 static inline DMFloat dmClamp10(const DMFloat a) |
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272 { |
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273 return (a < 0.0f ? 0.0f : (a > 1.0f ? 1.0f : a)); |
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274 } |
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275 |
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276 |
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277 static inline int dmClamp(const int v, const int min, const int max) |
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278 { |
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279 return (v < min ? min : (v > max ? max : v)); |
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280 } |
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281 |
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282 |
0 | 283 /* Arbitrary line drawing |
284 */ | |
285 #ifdef DM_GFX_LINES | |
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286 #define DM_HEADER |
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287 #include "dmlinefunc.h" |
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288 |
262
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289 enum |
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290 { |
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291 CLIP_TOP = 1, |
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292 CLIP_BOTTOM = 2, |
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293 CLIP_RIGHT = 4, |
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294 CLIP_LEFT = 8 |
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295 }; |
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296 |
234
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297 #define DM_CLIP_FUNC dmClipLineCoordsFloat |
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298 #define DM_COORD_TYPE DMFloat |
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299 #include "dmlineclip.h" |
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300 |
232
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301 #undef DM_HEADER |
0 | 302 #endif |
303 | |
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304 |
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305 /* Various blitting functions |
0 | 306 */ |
307 #ifdef DM_GFX_BLITS | |
308 typedef int (*DMScaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, const int dwidth, const int dheight, SDL_Surface *dst); | |
309 DMScaledBlitFunc dmGetScaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); | |
310 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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311 |
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312 typedef int (*DMUnscaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst); |
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313 DMUnscaledBlitFunc dmGetUnscaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); |
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314 int dmUnscaledBlitSurfaceAny(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst, int mode); |
232
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315 |
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316 SDL_Surface *dmConvertScaledSurface(SDL_Surface *src, SDL_PixelFormat *fmt, const int dwidth, const int dheight); |
610
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317 |
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318 |
232
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319 #define DM_HEADER |
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320 #include "dmblitfunc.h" |
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321 #undef DM_HEADER |
612
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322 |
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323 #endif // DM_GFX_BLITS |
0 | 324 |
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325 |
90
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326 static inline void dmClearSurface(SDL_Surface *screen, const Uint32 col) |
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327 { |
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328 SDL_FillRect(screen, NULL, col); |
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329 } |
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330 |
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331 |
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332 static inline Uint32 dmMapRGB(SDL_Surface *screen, int r, int g, int b) |
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333 { |
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334 return SDL_MapRGB(screen->format, r, g, b); |
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335 } |
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336 |
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337 |
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338 static inline Uint32 dmMapRGBA(SDL_Surface *screen, int r, int g, int b, int a) |
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339 { |
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340 return SDL_MapRGBA(screen->format, r, g, b, a); |
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341 } |
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342 |
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343 |
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344 static inline int dmDirectBlitSurface(SDL_Surface *bmp, SDL_Surface *screen) |
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345 { |
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346 return SDL_BlitSurface(bmp, NULL, screen, NULL); |
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347 } |
0 | 348 |
349 | |
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350 static inline SDL_Surface *dmCopySurface(SDL_Surface *src) |
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351 { |
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352 if (src != NULL) |
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353 return SDL_ConvertSurface(src, src->format, src->flags); |
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354 else |
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355 return NULL; |
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356 } |
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357 |
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358 |
0 | 359 /* Global variables |
360 */ | |
361 extern char *dmProgName, | |
362 *dmProgDesc, | |
363 *dmProgVersion, | |
364 *dmProgAuthor, | |
365 *dmProgLicense; | |
366 | |
367 extern int dmVerbosity; | |
368 void dmInitProg(char *name, char *desc, char *version, char *author, char *license); | |
369 void dmPrintBanner(FILE *outFile, const char *name, const char *usage); | |
370 | |
371 void dmMsgVA(int level, const char *fmt, va_list ap); | |
372 void dmMsg(int level, const char *fmt, ...); | |
373 void dmPrintVA(int level, const char *fmt, va_list ap); | |
374 void dmPrint(int level, const char *fmt, ...); | |
375 | |
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376 int dmErrorVA(const int error, const char *fmt, va_list); |
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377 int dmError(const int error, const char *fmt, ...); |
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378 void dmErrorMsg(const char *fmt, ...); |
955 | 379 int dmGetErrno(); |
380 const char *dmErrorStr(const int error); | |
381 | |
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382 #ifdef DM_DEBUG |
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383 # define dmErrorDBG dmError |
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384 # define dmErrorDBGMsg dmErrorMsg |
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385 #else |
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386 # define dmErrorDBG(ecode, fmt, ...) (ecode) // Dummy |
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387 # define dmErrorDBGMsg(fmt, ...) |
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388 #endif |
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389 |
1451 | 390 void * dmMalloc(size_t len); |
391 void * dmMalloc0(size_t len); | |
392 void * dmRealloc(void *ptr, size_t len); | |
393 void * dmCalloc(size_t n, size_t len); | |
394 void dmFree(void *ptr); | |
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395 void dmFreeRReal(void **ptr); |
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396 #define dmFreeR(ptr) dmFreeRReal((void **) ptr) |
1451 | 397 |
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398 #if defined(DM_HAVE_MEMSET) || defined(DM_HAVE_STRING_H) |
1166 | 399 static inline void * dmMemset(void *ptr, const int c, size_t n) |
400 { | |
401 return memset(ptr, c, n); | |
402 } | |
403 #else | |
404 void * dmMemset(void *ptr, const int c, size_t n); | |
405 #endif | |
0 | 406 |
407 char * dm_strdup(const char *); | |
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408 char * dm_strndup(const char *, const size_t n); |
0 | 409 char * dm_strdup_vprintf(const char *, va_list); |
410 char * dm_strdup_printf(const char *, ...); | |
411 | |
813 | 412 char * dm_basefilename(const char *filename); |
413 char * dm_strdup_fext(const char *filename, const char *fmt); | |
816 | 414 char * dm_strrcasecmp(char *str, const char *needle); |
0 | 415 |
955 | 416 BOOL dmGetIntVal(const char *s, unsigned int *i); |
417 | |
418 | |
294
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419 /* Mutexes |
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420 */ |
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421 #ifdef DM_MUTEX_DEBUG |
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422 |
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423 typedef struct |
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424 { |
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425 BOOL used; |
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426 Uint32 id; |
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427 int state; |
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428 } DMMutexLock; |
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429 |
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430 typedef struct |
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431 { |
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432 char *cr_file; |
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433 int cr_line; |
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434 SDL_mutex *m; |
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435 DMMutexLock locks[8]; |
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436 } DMMutex; |
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437 |
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438 #define dmMutexLock(x) dmDOMutexLock(x, __FILE__, (int) __LINE__) |
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439 #define dmMutexUnlock(x) dmDOMutexUnlock(x, __FILE__, (int) __LINE__) |
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440 #define dmCreateMutex(x) dmDOCreateMutex(__FILE__, (int) __LINE__) |
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441 |
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442 int dmDOMutexLock(DMMutex *mutex, const char *file, const int line); |
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443 int dmDOMutexUnlock(DMMutex *mutex, const char *file, const int line); |
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444 DMMutex * dmDOCreateMutex(const char *file, const int line); |
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445 void dmDestroyMutex(DMMutex *mutex); |
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446 |
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447 #else |
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448 #define DMMutex SDL_mutex |
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449 #define dmCreateMutex() SDL_CreateMutex() |
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450 #define dmDestroyMutex(x) SDL_DestroyMutex(x) |
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451 #define dmMutexLock(x) SDL_mutexP(x) |
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452 #define dmMutexUnlock(x) SDL_mutexV(x) |
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453 #endif |
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454 |
0 | 455 /* Endianess swapping macros |
456 */ | |
955 | 457 #define DM_SWAP_16_LE_BE(value) ((Uint16) ( \ |
0 | 458 (Uint16) ((Uint16) (value) >> 8) | \ |
459 (Uint16) ((Uint16) (value) << 8)) ) | |
460 | |
461 | |
955 | 462 #define DM_SWAP_32_LE_BE(value) ((Uint32) ( \ |
0 | 463 (((Uint32) (value) & (Uint32) 0x000000ffU) << 24) | \ |
464 (((Uint32) (value) & (Uint32) 0x0000ff00U) << 8) | \ | |
465 (((Uint32) (value) & (Uint32) 0x00ff0000U) >> 8) | \ | |
466 (((Uint32) (value) & (Uint32) 0xff000000U) >> 24))) | |
467 | |
955 | 468 #define DM_SWAP_64_LE_BE(value) ((Uint64) ( \ |
469 (((Uint64) (value) & (Uint64) 0x00000000000000ffULL) << 56) | \ | |
470 (((Uint64) (value) & (Uint64) 0x000000000000ff00ULL) << 40) | \ | |
471 (((Uint64) (value) & (Uint64) 0x0000000000ff0000ULL) << 24) | \ | |
472 (((Uint64) (value) & (Uint64) 0x00000000ff000000ULL) << 8) | \ | |
473 (((Uint64) (value) & (Uint64) 0x000000ff00000000ULL) >> 8) | \ | |
474 (((Uint64) (value) & (Uint64) 0x0000ff0000000000ULL) >> 24) | \ | |
475 (((Uint64) (value) & (Uint64) 0x00ff000000000000ULL) >> 40) | \ | |
0 | 476 (((Uint64) (value) & (Uint64) 0xff00000000000000ULL) >> 56))) |
873 | 477 |
0 | 478 |
479 /* Macros that swap only when needed ... | |
480 */ | |
481 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
770 | 482 # define DM_LE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) |
483 # define DM_LE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
484 # define DM_NATIVE_TO_LE16(value) DM_SWAP_16_LE_BE(value) | |
485 # define DM_NATIVE_TO_LE32(value) DM_SWAP_32_LE_BE(value) | |
0 | 486 |
770 | 487 # define DM_BE16_TO_NATIVE(value) ((Uint16) (value)) |
488 # define DM_BE32_TO_NATIVE(value) ((Uint32) (value)) | |
489 # define DM_NATIVE_TO_BE16(value) ((Uint16) (value)) | |
490 # define DM_NATIVE_TO_BE32(value) ((Uint32) (value)) | |
0 | 491 |
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492 # define DM_LE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) |
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493 # define DM_NATIVE_TO_LE64(value) DM_SWAP_64_LE_BE(value) |
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494 # define DM_BE64_TO_NATIVE(value) ((Uint64) (value)) |
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495 # define DM_NATIVE_TO_BE64(value) ((Uint64) (value)) |
0 | 496 |
497 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
498 | |
770 | 499 # define DM_LE16_TO_NATIVE(value) ((Uint16) (value)) |
500 # define DM_LE32_TO_NATIVE(value) ((Uint32) (value)) | |
501 # define DM_NATIVE_TO_LE16(value) ((Uint16) (value)) | |
502 # define DM_NATIVE_TO_LE32(value) ((Uint32) (value)) | |
0 | 503 |
770 | 504 # define DM_BE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) |
505 # define DM_BE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
506 # define DM_NATIVE_TO_BE16(value) DM_SWAP_16_LE_BE(value) | |
507 # define DM_NATIVE_TO_BE32(value) DM_SWAP_32_LE_BE(value) | |
0 | 508 |
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509 # define DM_LE64_TO_NATIVE(value) ((Uint64) (value)) |
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510 # define DM_NATIVE_TO_LE64(value) ((Uint64) (value)) |
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511 # define DM_BE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) |
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512 # define DM_NATIVE_TO_BE64(value) DM_SWAP_64_LE_BE(value) |
0 | 513 #endif |
514 | |
515 | |
516 #ifdef __cplusplus | |
517 } | |
518 #endif | |
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519 |
0 | 520 #endif // DMLIB_H |