Mercurial > hg > dmlib
annotate src/dmlib.h @ 908:03bda6477ad4
Add new error code DMERR_DATA_ERROR.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Mon, 23 Feb 2015 22:51:28 +0200 |
parents | e5fde730b4fa |
children | 7d1696edf244 |
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 | |
24 #ifdef __cplusplus | |
25 extern "C" { | |
26 #endif | |
27 | |
28 // Defaults | |
805 | 29 #define DM_PROG_AUTHOR "By Matti 'ccr' Hamalainen (C) Copyright 2014 TNSP" |
341 | 30 #define DM_PROG_LICENSE "Et all, see README / COPYING for more information." |
0 | 31 |
32 /* Error codes | |
33 */ | |
34 enum { | |
770 | 35 // General error codes |
36 DMERR_OK = 0, | |
37 DMERR_PROGRESS, // Status OK, but operation in progress | |
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38 |
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39 DMERR_INTERNAL, |
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40 |
770 | 41 DMERR_FOPEN, |
42 DMERR_FREAD, | |
43 DMERR_FWRITE, | |
44 DMERR_FSEEK, | |
45 DMERR_NOT_FOUND, // Resource/data not found | |
0 | 46 |
770 | 47 DMERR_INVALID_DATA, // Some data was invalid |
48 DMERR_MALLOC, // Memory allocation failure | |
49 DMERR_ALREADY_INIT, // Resource has already been initialized | |
50 DMERR_INIT_FAIL, // General initialization failure | |
51 DMERR_INVALID_ARGS, | |
0 | 52 |
770 | 53 DMERR_NULLPTR, // NULL pointer specified in critical argument |
54 DMERR_NOT_SUPPORTED,// Operation not supported | |
55 DMERR_OUT_OF_DATA, | |
56 DMERR_EXTRA_DATA, | |
57 DMERR_BOUNDS, | |
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58 |
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59 DMERR_DATA_ERROR, // Data decoding/encoding/parsing error |
0 | 60 |
770 | 61 // PACK-file subsystem |
62 DMERR_NOTPACK, | |
63 DMERR_VERSION, | |
64 DMERR_INVALID, | |
65 DMERR_COMPRESSION, | |
0 | 66 }; |
67 | |
813 | 68 // Directory/path separator stuff |
69 #define DM_DIR_SEPARATOR '/' | |
70 | |
0 | 71 |
72 // Resource management defines | |
73 #define DMRES_NAME_LEN 32 | |
74 #define DMRES_DATA_PACK "data.pak" // Name of the data-file | |
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75 #define DMRES_DATA_PATH "data/" // Sub-directory path |
0 | 76 #define DMRES_RES_FILE "res.txt" // Resource data file |
77 | |
78 | |
79 /* Define a boolean type | |
80 */ | |
81 #if !defined(FALSE) && !defined(TRUE) && !defined(BOOL) | |
82 typedef enum { FALSE = 0, TRUE = 1 } BOOL; | |
83 #endif | |
84 | |
85 #ifndef BOOL | |
770 | 86 # ifdef bool |
87 # define BOOL bool | |
88 # else | |
89 # define BOOL int | |
90 # endif | |
0 | 91 #endif |
92 | |
93 | |
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94 /* Math constants |
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95 */ |
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96 #define DM_PI 3.14159265358f |
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97 #define DM_PI2 6.28318530718f |
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98 #define DM_E 2.71828182846f |
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99 |
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100 |
0 | 101 /* Fixed point math type |
102 */ | |
103 typedef union | |
104 { | |
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105 Sint64 dw; |
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106 Sint32 w[2]; |
0 | 107 } DMFixedPoint; |
108 | |
109 | |
110 typedef union | |
111 { | |
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112 Sint32 dw; |
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113 Sint16 w[2]; |
0 | 114 } DMFixedPoint32; |
115 | |
116 | |
117 /* Macros for fixed point math | |
118 */ | |
119 #if __GNUC__ >= 3 | |
120 # define FP_SET(a, k) a.dw = k ## ULL | |
121 #else | |
122 # define FP_SET(a, k) a.dw = k | |
123 #endif | |
124 | |
138
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125 #define FP_CONV(a, k) a.dw = (k) |
0 | 126 |
127 #ifndef SDL_BYTEORDER | |
128 # error Undefined byteorder! | |
129 #endif | |
130 | |
131 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
132 # define FP_SETH(a, k) a.w[0] = (k) | |
133 # define FP_SETL(a, k) a.w[1] = (k) | |
134 # define FP_SETHL(a, h, l) { a.w[0] = (h); a.w[1] = (l); } | |
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135 # define FP_GETH32(a) a.w[0] |
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136 # define FP_GETL32(a) a.w[1] |
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137 # define FP_GETH16(a) a.w[0] |
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138 # define FP_GETL16(a) a.w[1] |
0 | 139 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) |
140 # define FP_SETH(a, k) a.w[1] = (k) | |
141 # define FP_SETL(a, k) a.w[0] = (k) | |
142 # define FP_SETHL(a, h, l) { a.w[1] = (h); a.w[0] = (l); } | |
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143 # define FP_GETH32(a) a.w[1] |
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144 # define FP_GETL32(a) a.w[0] |
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145 # define FP_GETH16(a) a.w[1] |
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146 # define FP_GETL16(a) a.w[0] |
0 | 147 #else |
148 # error Unsupported byte order! | |
149 #endif | |
150 | |
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151 #define FP_PRINTF64(a) printf("%.8x:%.8x", FP_GETH32(a), FP_GETL32(a)) |
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152 #define FP_PRINTF32(a) printf("%.4x:%.4x", FP_GETH16(a), FP_GETL16(a)) |
0 | 153 |
154 #define FP_ADD(a, b) a.dw += b.dw | |
155 #define FP_SUB(a, b) a.dw -= b.dw | |
156 #define FP_ADD_R(r, a, b) r.dw = a.dw + b.dw | |
157 #define FP_SUB_R(r, a, b) r.dw = a.dw - b.dw | |
158 #define FP_DIV(a, b) a.dw /= b.dw | |
159 #define FP_MUL(a, b) a.dw *= b.dw | |
160 #define FP_DIV_R(r, a, b) r.dw = (a.dw / b.dw) | |
161 #define FP_MUL_R(r, a, b) r.dw = (a.dw * b.dw) | |
162 | |
163 | |
164 /* Miscellaneous types | |
165 */ | |
166 typedef struct | |
167 { | |
168 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
169 Uint8 a,g,b,r; | |
170 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
171 Uint8 r,g,b,a; | |
172 #endif | |
173 } DMRGBA32; | |
174 | |
175 | |
176 typedef float DMFloat; | |
177 | |
178 | |
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179 // Macro for swapping two lvalues of same type |
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180 #define DM_SWAP(T, A, B) { if ((B) < (A)) { T swtmp = (B); B = (A); A = swtmp; } } |
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181 |
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182 |
0 | 183 /* Drawing modes used by blitting and some other functions. |
184 */ | |
185 enum | |
186 { | |
187 DMD_NONE = 0x0000, | |
188 DMD_TRANSPARENT = 0x0001, | |
189 DMD_SATURATE = 0x0002, | |
190 | |
191 DMD_ANTIALIAS = 0x0004, | |
192 | |
193 DMD_NMODES = 6 | |
194 }; | |
195 | |
196 | |
197 // Available bitdepths. Not all functions may support every one of these. | |
198 enum | |
199 { | |
200 DMD_8BIT = 0, | |
201 DMD_32BIT, | |
202 | |
203 DMD_NBITDEPTHS | |
204 }; | |
205 | |
206 | |
207 static inline int dmBitsPerPixel2Index(int bpp) | |
208 { | |
209 return (bpp == 8 ? 0 : (bpp == 32 ? 1 : -1)); | |
210 } | |
211 | |
212 | |
213 /* Generic parameter interpolation | |
214 */ | |
215 #define DMM_S_CURVE(t) ((t) * (t) * (3.0f - 2.0f * (t))) | |
216 #define DMM_LERP(t, a, b) ((a) + (t) * ((b) - (a))) | |
217 | |
218 typedef struct | |
219 { | |
220 DMFloat start, end, nsteps; | |
221 } DMLerpContext; | |
222 | |
223 | |
224 void dmLerpInit(DMLerpContext *ctx, DMFloat start, DMFloat end, DMFloat nsteps); | |
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225 DMFloat dmCatmullRom(const DMFloat t, const DMFloat p0, const DMFloat p1, const DMFloat p2, const DMFloat p3); |
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226 |
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227 |
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228 static inline DMFloat dmClamp10(const DMFloat a) |
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229 { |
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230 return (a < 0.0f ? 0.0f : (a > 1.0f ? 1.0f : a)); |
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231 } |
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232 |
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233 |
153
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234 static inline int dmClamp(const int v, const int min, const int max) |
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235 { |
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236 return (v < min ? min : (v > max ? max : v)); |
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237 } |
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238 |
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239 |
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240 static inline DMFloat dmLerpSCurve(DMLerpContext *ctx, const DMFloat step) |
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241 { |
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242 const DMFloat n = step / ctx->nsteps; |
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243 const DMFloat v = DMM_S_CURVE(n); |
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244 return DMM_LERP(v, ctx->start, ctx->end); |
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245 } |
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246 |
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247 |
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248 static inline DMFloat dmLerpSCurveClamp(DMLerpContext *ctx, const DMFloat step) |
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249 { |
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250 const DMFloat n = dmClamp10(step / ctx->nsteps); |
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251 const DMFloat v = DMM_S_CURVE(n); |
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252 return DMM_LERP(v, ctx->start, ctx->end); |
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253 } |
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254 |
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255 |
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256 static inline DMFloat dmLerp1(DMLerpContext *ctx, const DMFloat step) |
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257 { |
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258 const DMFloat v = step / ctx->nsteps; |
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259 return DMM_LERP(v, ctx->start, ctx->end); |
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260 } |
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261 |
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262 |
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263 static inline DMFloat dmLerp1Clamp(DMLerpContext *ctx, const DMFloat step) |
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264 { |
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265 const DMFloat v = dmClamp10(step / ctx->nsteps); |
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266 return DMM_LERP(v, ctx->start, ctx->end); |
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267 } |
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268 |
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269 |
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270 static inline DMFloat dmCatmullRomClamp(const DMFloat t, const DMFloat p0, const DMFloat p1, const DMFloat p2, const DMFloat p3) |
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271 { |
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272 return dmCatmullRom(dmClamp10(t), p0, p1, p2, p3); |
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273 } |
0 | 274 |
275 | |
276 /* Arbitrary line drawing | |
277 */ | |
278 #ifdef DM_GFX_LINES | |
232
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279 #define DM_HEADER |
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280 #include "dmlinefunc.h" |
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281 |
262
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282 enum |
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283 { |
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284 CLIP_TOP = 1, |
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285 CLIP_BOTTOM = 2, |
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286 CLIP_RIGHT = 4, |
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287 CLIP_LEFT = 8 |
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288 }; |
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289 |
234
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290 #define DM_CLIP_FUNC dmClipLineCoordsFloat |
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291 #define DM_COORD_TYPE DMFloat |
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292 #include "dmlineclip.h" |
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293 |
232
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294 #undef DM_HEADER |
0 | 295 #endif |
296 | |
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297 |
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298 /* Various blitting functions |
0 | 299 */ |
300 #ifdef DM_GFX_BLITS | |
301 typedef int (*DMScaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, const int dwidth, const int dheight, SDL_Surface *dst); | |
302 DMScaledBlitFunc dmGetScaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); | |
303 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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304 |
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305 typedef int (*DMUnscaledBlitFunc)(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst); |
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306 DMUnscaledBlitFunc dmGetUnscaledBlitFunc(SDL_PixelFormat *src, SDL_PixelFormat *dst, int mode); |
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307 int dmUnscaledBlitSurfaceAny(SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst, int mode); |
232
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308 |
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309 SDL_Surface *dmConvertScaledSurface(SDL_Surface *src, SDL_PixelFormat *fmt, Uint32 flags, const int dwidth, const int dheight); |
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310 |
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311 |
232
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312 #define DM_HEADER |
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313 #include "dmblitfunc.h" |
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314 #undef DM_HEADER |
612
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315 |
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316 #endif // DM_GFX_BLITS |
0 | 317 |
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318 |
0 | 319 /* Misc functions |
320 */ | |
321 #ifdef DM_GFX_MISC | |
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322 |
0 | 323 void dmFillRect(SDL_Surface *screen, int x0, int y0, int x1, int y1, const Uint32 col); |
324 void dmDrawHLine(SDL_Surface *screen, int x0, int x1, int yc, const Uint32 col); | |
325 void dmDrawVLine(SDL_Surface *screen, int y0, int y1, int xc, const Uint32 col); | |
150
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326 |
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327 void dmDrawBox3D(SDL_Surface *screen, int x0, int y0, int x1, int y1, Uint32 ucol, Uint32 dcol); |
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328 void dmFillBox3D(SDL_Surface *screen, int x0, int y0, int x1, int y1, Uint32 bgcol, Uint32 ucol, Uint32 dcol); |
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329 |
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330 #endif // DM_GFX_MISC |
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331 |
90
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332 |
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333 static inline void dmClearSurface(SDL_Surface *screen, const Uint32 col) |
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334 { |
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335 SDL_FillRect(screen, NULL, col); |
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336 } |
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337 |
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338 |
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339 static inline Uint32 dmMapRGB(SDL_Surface *screen, int r, int g, int b) |
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340 { |
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341 return SDL_MapRGB(screen->format, r, g, b); |
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342 } |
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343 |
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344 |
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345 static inline Uint32 dmMapRGBA(SDL_Surface *screen, int r, int g, int b, int a) |
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346 { |
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347 return SDL_MapRGBA(screen->format, r, g, b, a); |
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348 } |
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349 |
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350 |
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351 static inline int dmDirectBlitSurface(SDL_Surface *bmp, SDL_Surface *screen) |
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352 { |
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353 return SDL_BlitSurface(bmp, NULL, screen, NULL); |
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354 } |
0 | 355 |
356 | |
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357 static inline SDL_Surface *dmCopySurface(SDL_Surface *src) |
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358 { |
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359 if (src != NULL) |
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360 return SDL_ConvertSurface(src, src->format, src->flags); |
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361 else |
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362 return NULL; |
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363 } |
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364 |
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365 |
0 | 366 /* Global variables |
367 */ | |
368 extern char *dmProgName, | |
369 *dmProgDesc, | |
370 *dmProgVersion, | |
371 *dmProgAuthor, | |
372 *dmProgLicense; | |
373 | |
374 extern int dmVerbosity; | |
375 void dmInitProg(char *name, char *desc, char *version, char *author, char *license); | |
376 void dmPrintBanner(FILE *outFile, const char *name, const char *usage); | |
377 | |
378 void dmMsgVA(int level, const char *fmt, va_list ap); | |
379 void dmMsg(int level, const char *fmt, ...); | |
380 void dmPrintVA(int level, const char *fmt, va_list ap); | |
381 void dmPrint(int level, const char *fmt, ...); | |
382 void dmErrorVA(const char *fmt, va_list); | |
383 void dmError(const char *fmt, ...); | |
384 | |
385 void * dmMalloc(size_t); | |
386 void * dmMalloc0(size_t); | |
387 void * dmRealloc(void *, size_t); | |
388 void * dmCalloc(size_t, size_t); | |
389 void dmFree(void *); | |
390 | |
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391 BOOL dmGetIntVal(const char *s, unsigned int *i); |
0 | 392 |
393 int dmGetErrno(); | |
394 const char *dmErrorStr(int error); | |
395 | |
396 char * dm_strdup(const char *); | |
744
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397 char * dm_strndup(const char *, const size_t n); |
0 | 398 char * dm_strdup_vprintf(const char *, va_list); |
399 char * dm_strdup_printf(const char *, ...); | |
400 | |
813 | 401 char * dm_basefilename(const char *filename); |
402 char * dm_strdup_fext(const char *filename, const char *fmt); | |
816 | 403 char * dm_strrcasecmp(char *str, const char *needle); |
0 | 404 |
294
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405 /* Mutexes |
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406 */ |
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407 #ifdef DM_MUTEX_DEBUG |
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408 |
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409 typedef struct |
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410 { |
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411 BOOL used; |
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412 Uint32 id; |
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413 int state; |
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414 } DMMutexLock; |
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415 |
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416 typedef struct |
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417 { |
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418 char *cr_file; |
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419 int cr_line; |
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420 SDL_mutex *m; |
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421 DMMutexLock locks[8]; |
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422 } DMMutex; |
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423 |
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424 #define dmMutexLock(x) dmDOMutexLock(x, __FILE__, (int) __LINE__) |
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425 #define dmMutexUnlock(x) dmDOMutexUnlock(x, __FILE__, (int) __LINE__) |
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426 #define dmCreateMutex(x) dmDOCreateMutex(__FILE__, (int) __LINE__) |
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427 |
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428 int dmDOMutexLock(DMMutex *mutex, const char *file, const int line); |
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429 int dmDOMutexUnlock(DMMutex *mutex, const char *file, const int line); |
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430 DMMutex * dmDOCreateMutex(const char *file, const int line); |
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431 void dmDestroyMutex(DMMutex *mutex); |
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432 |
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433 #else |
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434 #define DMMutex SDL_mutex |
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435 #define dmCreateMutex() SDL_CreateMutex() |
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436 #define dmDestroyMutex(x) SDL_DestroyMutex(x) |
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437 #define dmMutexLock(x) SDL_mutexP(x) |
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438 #define dmMutexUnlock(x) SDL_mutexV(x) |
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439 #endif |
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440 |
0 | 441 /* Endianess swapping macros |
442 */ | |
443 #define DM_SWAP_16_LE_BE(value) ((Uint16) ( \ | |
444 (Uint16) ((Uint16) (value) >> 8) | \ | |
445 (Uint16) ((Uint16) (value) << 8)) ) | |
446 | |
447 | |
448 #define DM_SWAP_32_LE_BE(value) ((Uint32) ( \ | |
449 (((Uint32) (value) & (Uint32) 0x000000ffU) << 24) | \ | |
450 (((Uint32) (value) & (Uint32) 0x0000ff00U) << 8) | \ | |
451 (((Uint32) (value) & (Uint32) 0x00ff0000U) >> 8) | \ | |
452 (((Uint32) (value) & (Uint32) 0xff000000U) >> 24))) | |
453 | |
454 #define DM_SWAP_64_LE_BE(value) ((Uint64) ( \ | |
455 (((Uint64) (value) & (Uint64) 0x00000000000000ffULL) << 56) | \ | |
456 (((Uint64) (value) & (Uint64) 0x000000000000ff00ULL) << 40) | \ | |
457 (((Uint64) (value) & (Uint64) 0x0000000000ff0000ULL) << 24) | \ | |
458 (((Uint64) (value) & (Uint64) 0x00000000ff000000ULL) << 8) | \ | |
459 (((Uint64) (value) & (Uint64) 0x000000ff00000000ULL) >> 8) | \ | |
460 (((Uint64) (value) & (Uint64) 0x0000ff0000000000ULL) >> 24) | \ | |
461 (((Uint64) (value) & (Uint64) 0x00ff000000000000ULL) >> 40) | \ | |
462 (((Uint64) (value) & (Uint64) 0xff00000000000000ULL) >> 56))) | |
873 | 463 |
0 | 464 |
465 /* Macros that swap only when needed ... | |
466 */ | |
467 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
770 | 468 # define DM_LE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) |
469 # define DM_LE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
470 # define DM_NATIVE_TO_LE16(value) DM_SWAP_16_LE_BE(value) | |
471 # define DM_NATIVE_TO_LE32(value) DM_SWAP_32_LE_BE(value) | |
0 | 472 |
770 | 473 # define DM_BE16_TO_NATIVE(value) ((Uint16) (value)) |
474 # define DM_BE32_TO_NATIVE(value) ((Uint32) (value)) | |
475 # define DM_NATIVE_TO_BE16(value) ((Uint16) (value)) | |
476 # define DM_NATIVE_TO_BE32(value) ((Uint32) (value)) | |
0 | 477 |
872
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478 # define DM_LE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) |
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479 # define DM_NATIVE_TO_LE64(value) DM_SWAP_64_LE_BE(value) |
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480 # define DM_BE64_TO_NATIVE(value) ((Uint64) (value)) |
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481 # define DM_NATIVE_TO_BE64(value) ((Uint64) (value)) |
0 | 482 |
483 #elif (SDL_BYTEORDER == SDL_LIL_ENDIAN) | |
484 | |
770 | 485 # define DM_LE16_TO_NATIVE(value) ((Uint16) (value)) |
486 # define DM_LE32_TO_NATIVE(value) ((Uint32) (value)) | |
487 # define DM_NATIVE_TO_LE16(value) ((Uint16) (value)) | |
488 # define DM_NATIVE_TO_LE32(value) ((Uint32) (value)) | |
0 | 489 |
770 | 490 # define DM_BE16_TO_NATIVE(value) DM_SWAP_16_LE_BE(value) |
491 # define DM_BE32_TO_NATIVE(value) DM_SWAP_32_LE_BE(value) | |
492 # define DM_NATIVE_TO_BE16(value) DM_SWAP_16_LE_BE(value) | |
493 # define DM_NATIVE_TO_BE32(value) DM_SWAP_32_LE_BE(value) | |
0 | 494 |
872
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495 # define DM_LE64_TO_NATIVE(value) ((Uint64) (value)) |
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496 # define DM_NATIVE_TO_LE64(value) ((Uint64) (value)) |
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497 # define DM_BE64_TO_NATIVE(value) DM_SWAP_64_LE_BE(value) |
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498 # define DM_NATIVE_TO_BE64(value) DM_SWAP_64_LE_BE(value) |
0 | 499 #endif |
500 | |
501 | |
502 #ifdef __cplusplus | |
503 } | |
504 #endif | |
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505 |
0 | 506 #endif // DMLIB_H |